I M -:ïyt4 . - ■ ■
r<Ä
Increases Production
S U N M I N E L U B R I C A N T . . .
Eliminates Shutdowns Every Other Day for Cleaning and Lubricating Loading Machine
A big P e n n sylvan ia mine w as shutting dow n a lo a d in g m achine every tw o or three d a ys because gre a se w as sep arating an d form ing gum m y deposits in the transm ission case a n d heads.
A Sun Engineer
recom m ended they switch to a "J o b - P r o v e d "Sun gre a se that is used in m any coal mines under sim ilar o p era ting conditions.
This g re a se m a in ta in s its consistency
despite b a d w ater c o n ditions. Since they b e g a n using it in this mine, they have h ad to grease the load e r o n ly once every tw o or three weeks.E stim a te d sa v in g
is $ 1 6 6 4 a year on la b o r required for greasin g.In addition, about one-sixth as much gre a se is n o w used, a n d more continuous production o f coal has resulted.
From m ine face to tipple#
Sun "J o b - P r o v e d " lubricants m ean m a x imum protection for mine m achinery, maximum time on the job, an d minimum m aintenance costs. C a ll your nearest Sun office today.SUN O IL COM PANY •
P h i l a d e l p h i a 3 , P a .S p o n s o r s o f t h e S u n o c o N e w s - V o ic e o f t h e A i r — L o w e li T h o m a s
<SUN0C0>i>
I N D U S T R I A L
P R O D U C T S
Candy for cows cools off on rubber
A t y p i c a l e x a m p l e o f B . F . G o o d r i c h i m p r o v e m e n t i n r u b b e r
/'"'O w s love ’em, and give out more milk when they’re fed those soy- bean-and-molasses wafers.
*1 he trouble was the wafers were too expensive to make. M ixed and shaped in an oven, the hot pellets were dropped onto a m oving rubber belt to be cooled and carried to pack
aging machines. But the heat and the vegetable oil in the "candy” attacked the rubber belts, made the belts swell and break into pieces in sixty days or less. Besides the cost o f new belts, the COAL A G E * January. 1947
plant had to shut down, production was lost.
B. F. Goodrich engineers, who had designed special belts for almost every possible service, w ent to work on this one. They developed a synthetic rub
ber which resists oil, and found com
pounds which, added to it, enable the rubber to stand the 180° heat o f the oily wafers.
Belts o f this new BFG compound were made. Today they have been in use not 60 days but 6 months and still
look as good as new. They have already . carried 31 m illion pounds of the hot, oily "candy for cows” w ithout a single stop or a m om ent’s time loss.
Production has been continuous, re
pairs have been eliminated, costs have been reduced — typical advantages of the B. F. Goodrich developm ent which is applied constantly to every rubber product. T h e D. F. G o o d r i c h C o m p a n y . Industrial P r o d u c t s D ivision, A k r o n , O h i o .
B.E Goodrich
b u b b e r a n d s y n t h e t i c
i
H A D TO L E A V E A M E R I C A . . . The first "baby-carriages" w ere m ad e b y Mr.
Charles Burton in 1848, and w ere first u sed in N ew York City. H owever, they soon proved unpopular, b eca u se of the tendency of their w heelers to hit pedestrians; thus creating an early traffic problem. So Burton m oved to England, w here h e op en ed a factory; and he obtained orders for his n ew “perambulator"
from Q ueen Victoria, Q u een Isabella H of Spain; and an u nusually large order from the Pasha of Egypt.
Right from the start, Hulburt Q uality G rease for lu b r ic a tin g C o a l M in in g E q u ip m en t, proved POPULAR with coal m ining m en. No longer did they h a v e to “baby" their m a
chines . . . they could g o right ah ea d without hitting sn a g s due to faulty lubrication. The d o w n -in -th e -m in e s e r v ic e of HULBURT LUBRICATION ENGINEERS helped, too. but it is the outstanding QUALITY of HULBURT QUALITY GREASE that k eep s coal mining m achines "rolling."
H ULBU RT O IL & G R E A S E C O M P A N Y . . P H IL A D E L P H IA , P EN N A .
Sfr t c i e i li 4 t e i n 0 u U ¿ c d k l c e t U t o
F i r s t i t s F i e l d . . .
T H E F I R S T
BABY CARRIAGE MAKER
- . - - - - . \
. a r e c o r d o f
A m e r i c a n l e a d e r s h i p
THE “ FIRST
N A M E ” I N
K E Y S T O N E O K
* S Its on
r V h e n y o u are p lo ttin g w ays and m eans to keep ozon e, m oistu re and h eat fr o m sh ort-chan gin g y ou in p o w er circuits, rem em ber this concrete ex am p le o f w h a t you.
can ex p ec t from H azard K eyston e In su latio n under such op era tin g con d ition s — 25 years o f troub le-free service and s till n o sign s o f in su la tio n d eteriora tion is th e h istory o f th ese 22,000 v o lt transform er cables in sta lle d by an inter-urban electric railroad.
H azard K ey sto n e In su la tio n effectively com bines in o n e oil-b ase com p ou n d u n u su al resistance to ozon e, heat, m oisture, sunlight* chem icals and acids. It has b een u sed w ith ou tstan d in g success fo r aerial, u n d ergro u n d , interior and subm arine circuits w ith variou s typ es o f o u tsid e p ro tective jackets em p lo y ed in accordance w ith th e particular job requirem ents. For a ll the facts, w r ite fo r b u lletin H-4Q3. T h e H azard In su lated W ir e W o rk s, D iv is io n o f T h e O k o n ite C om pany, W ilkes-B arre, Pa.
e r y e l e c t r i c a l
January. 1947 •
u s e
4889
COAL AGE
Typical service record of Hazard Keystone Insulation is this 22,000 volt transformer cable installation — no trouble for 25 years . . . no signs of deterioration .
Alfred M. Staehle, Publisher IVAN A. GIVEN, Editor J. H. Edwards R. R. Richarl W. H. McNeal W. A. Stanbury Jr.
F. A. Zimmerli Donald D. Hogate, W a sh ington H. R. Mathias, S a les M anager World News offices: London, Paris,
Berlin, Moscow, Prague, Shanghai, Bombay, Mexico City.
C O A L A G E ( w i t h w h i c h i s c o n s o l i d a t e d
" T h e C o l l i e r y E n g i n e e r ” a n d “ M in e s a n d M i n e r a l s ” ) is p u b l i s h e d m o n t h l y o n t h e 1 s t. A llo w a t l e a s t te n d a y s f o r c h a n g e o f a d d r e s s .
S u b s c r i p t i o n r a t e s : U n i t e d S t a t e s a n d p o s s e s s i o n s , $5 f o r o n e y e a r , $8 f o r t w o y e a r s , $ 1 0 f o r t h r e e y e a r s . C a n a d a ,
$6 f o r o n e y e a r , $10 f o r tw o y e a r s , $12 f o r t h r e e y e a r s . P a n A m e r i c a n c o u n t r i e s , $0 f o r o n e y e a r , $10 f o r tw o y e a r s , $12 f o r t h r e e y e a r s . A ll o t h e r c o u n t r i e s , $15 f o r o n e y e a r , $30 f o r t h r e e y e a r s . S in g l e c o p ie s , 50 c e n t s e a c h . E n t e r e d a s s e c o n d c l a s s m a t t e r O c t. 14, 193 6 , a t t h e P o s t O ffice a t A l b a n y , N . Y ., u n d e r t h e A c t o f M a r c h 3, 1879. P r i n t e d in t h e U . S. A . C a b l e A d d r e s s : “ M c G r a w - H i l l N . Y .” M e m b e r A .B .P . M e m b e r A .B .C . P l e a s e i n d i c a t e p o s i t i o n a n d c o m p a n y c o n n e c t i o n o n a l l s u b s c r i p t i o n o r d e r s .
K e t u r n P o s t a g e G u a r a n t e e d C o n t e n t s C o p y r i g h t 1947 b y M c G r a w - H i l l P u b l i s h i n g C o ., I n c . :
a l l r i g h t s r e s e r v e d J A M E S H . M c G R A W F o u n d e r a n d H o n o r a r y C h a i r m a n
J A M E S I I . M c G R A W , J R . P r e s i d e n t
C U R T I S W . M c G R A W S e n i o r V ic e P r e s i d e n t a n d T r e a s u r e r
J O S E P H A . G E R A R D I S e c r e t a r y N E L S O N B O N D D i r e c t o r o f A d v e r t i s i n g
E U G E N E D U F F I E L D E d i t o r i a l A s s i s t a n t t o t h e P r e s i d e n t
J . E . B L A C K B U R N , J R . D i r e c t o r o f C i r c u l a t i o n
P u b l i c a t i o n o ffice, 9 9 -1 2 9 N o r t h B r o a d w a y , A l b a n y 1, N . Y . E d i t o r i a l a n d e x e c u t i v e o ffice s, 33 0 W . 4 2 d S t., N e w Y o r k 18, N . Y . B r a n c h o ff ic e s : 520 N o r t h M ic h i g a n A v e ., C h ic a g o 11 ; 68 P o s t S t., S a n F r a n c i s c o , 4 ; A ld w y c h H o u s e , A ld w y c h , L o n d o n , W .C . 2 ; W a s h i n g t o n , 4 ; P h i l a d e l p h i a , 2 : C le v e l a n d , 15 ; D e t r o i t , 26 ; S t. L o u i s , 1 : B o s t o n , 16 : A t l a n t a , 3 ; L o s A n g e le s , 14 ; 7 3 8 -9 O l i v e r B ld g ., P i t t s b u r g h , 22.
A ll c o m m u n i c a t i o n s a b o u t s u b s c r i p t i o n s s h o u l d b e a d d r e s s e d to t h e D i r e c t o r o f C i r c u l a t i o n , C o a l A g e , 9 9 -1 2 9 N o r t h B r o a d w a y , A l b a n y 1, N . Y ., o r 330 A V est 4 2 d S t., N e w Y o r k 18, N . Y . D i s t r i c t M a n a g e r s : T . E . A l c o r n a n d F . AY. R o e t s , N e w Y o r k ; W . A . P o t t e r , P h i l a d e l p h i a : W . M . S p e a r s , C le v e l a n d : W . S. D r a k e , P i t t s b u r g h ; S . J . A i lin g , C h i c a g o ; C. J . C o a s h , S t. L o u i s .
Volume 52
C O N T E N T S
J A N U A R Y , 1947
N um ber 1
Union Relations ...
53Higher Recovery Follows Change in Monarch Mining Plan. . . 61
Pins and Jacks Facilitate Timbering at Arkwright... 64
By FRANK H. BROOKS
Modern Lubrication Assures Higher Production... 66
By M. B. L A W TO N " . . . ' ■' , ' » Q»
25-Yd. Dragline Extends Life of Trevorton Stripping... 71
B y RALPH R. R1CHART
Bituminous H aulage M arked b y Locomotive, Conveyor R ise . . 78
By W. H. YOUNG and R. L. ANDERSON
Overburden Auger Reduces Tipple Labor... 88
Mud Pump Facilitates Prospecting... 88
"Skeetow" Helps Miners Up the H ill... 90
Change to G rease Lubrication Improves Pu m p s... 90
Tire A nnealing Pit Added to Automatic W elding O utfit 92 Planning Helps Equipment Cut Fire H azard... 92
Rubber Mountings Stop Screen-Frame B reak ag e... 94
Air-Operated Spring Compressor Found In d isp en sab le... 94
M agneto Stand Rests on G lass Insulators... 96
Doors in Pans Drop Balled-Up W et Coal from Lower R u n . . . 96
Editorials ... 55
Foremen's F o r u m ... 84 Coal Men on the Job 98 N ew s Round-Up ... 101 Equipment N ew s ... 144
C H A N G E
Director of Circulation, COAL AGE 330 W est 42nd St., New York 18, N. Y.
R E S S
Please change the address of my COAL AGE subscription Name ... ..
Old A d d r e s s ...
New Address ...
New Company Connection New Title or P o s itio n ...
IN
W I N D , R A I N , S N O W OR H A I L Y O U R F R E I G H T G E T S T H E R E BY / m l t v R A I L !Facts Favor Your Future
in the
"Union Pacific West"*
[* O f special interest to the "|[
L Coal Industry
F a c t 1 . S in ce V -J d a y , h u n d red s o f in d u str ia l an d co m m er cia l c o n cern s h a v e lo c a te d fa c to r ie s , w a r e h o u se s a n d d istr ib u tio n fa c ilitie s on th e U n io n P a c ific r ig h t - o f - w a y in th e w e ste r n s ta te s se r v e d b y th e ra ilro ad .
F a c t 2 . T h is v a s t te r r ito r y is rich in raw m a te r ia ls , n a tu r a l resou rces, sk illed a n d u n sk ille d w o r k e r s . . . w ith id e a l liv in g c o n d itio n s, g o o d sch o o ls, a n d p le n t y o f sp a c e for fu tu r e e x p a n sio n .
IB
F a c t 3 . T r a v e l s u r v e y s sh o w v a c a tio n is ts fa v o r th e w e ste r n area b y a w id e m a rg in . R e s u lt — g re a ter in te r e s t in th e W e s t le a d in g t o p e r m a n e n t r e s id e n c e . . . g ro w in g m a r k e ts, m ore m a n p o w er for in d u s tr y .
F a c t 4 . O ver its S tr a te g ic M id d le R o u te , u n itin g th e E a s t w ith th e W e s t C o a s t, U n io n P a c ific p r o v id e s u n e x c e lle d rail tr a n s p o r ta tio n .
be Specific -
Sa{\ U n i o n P a c i f i c
U n io n P a c ifi c ic i l l g l a d l y f u r n i s h c o n f i d e n t i a l i n f o r m a t i o n r e g a r d i n g a v a i l a b l e i n d u s t r i a l s i t e s h a v i n g t r a c k a g e f a c i l i t i e s i n t h e t e r r i t o r y it. s e r v e s . A d d r e s s I r i i i u s t r i a l D e p t . y U n i o n P a c ific R a i l r o a d, O m a h a 2, N e b r a s k a.
U N I O N P A C I F I C R A I L R O A D
7¿e ¿Jraféa/c M r / d / e Æbe/fe
January, 1347 • COAL A G E
I h is B ird C o n tin u o u s C e n tr ifu g a l F ilter tak es th e fin e c o a l r ig h t fr o m th e w a sh ers, w ith o u t p r e - s c r e e n in g , an d d e liv e r s it dry an d w h o le
— rea d y fo r b le n d in g w ith th e la rg er sizes. T h e w a te r m ay b e re tu rn ed fo r re-u se.
A m in u s p lu s 0 fe e d c o n ta in in g 6 to 8% m in u s 2 0 0 m e sh fin es is d is c h a r g e d w ith n o t m o r e th a n 5% su rfa c e m o istu r e .
T h e B ird h a n d le s 4 0 to n s o r m o r e o f fin es p e r h o u r , o p e r a tin g ste a d ily fo r m o n th s w it h o u t a s h u td o w n fo r p arts re p la c e m e h ts o r repairs o f a n y -k in d . It d o e s th e jo b in sm a ll sp a ce at e x c e e d in g ly l o w c o st.
A s k u s to s h o w y o u h o w n ic e ly th is B ird F ilter fits in to y o u r p r e p a r a tio n sy stem . B i r d M a c h in e C o m p a n y , S o u th W a lp o le , M a s s a c h u s e tts .
COAL A G E • January. 1947 7
POWER TRANSMISSION
M O R E C L O S E L Y C O O R D I N A T E D P R O D U C T I O N and greatly increased flexibility of equipment can be obtained with the Vari-Pitch Speed- changer, shown installed in coal tipple, above. The turn of a hand wheel controls conveyor or equipment speeds w ith o u t stopping th e m achine! W idely used in coal preparation plants, the Allis-Chalmers Speed-changer is a proven power-saver . . . space-saver . . . time-saver.
Speed changes up to 375% can be made. Thirteen sizes, for appli
cations from 1 to 75 hp. B U L L E T I N B 6 0 1 3 A .
POWER DISTRIBUTION
P O W E R C O N V E R S I O N F O R M I N E H A U L A G E is provided by Allis- Chalmers Excitron rectifiers of the continuously excited, sealed tube type. Excitron rectifiers are applicable for all d-c voltage require
ments above 250 volts. High overall conversion efficiency is-main- tained over the entire load ran g e. . . high power factor is practically constant under all variable load conditions. Allis-Chalmers design improvements make these units immune to disturbances in a-c system and short circuits. Built for long life. B U L L E T I N B 6 3 0 1 .
A L L I S ' C H A L M E R S
One of the Big 3 in Electric Power Equipment — Biggest of All in Range of Industrial Products
/anuary, 1947 - COAL AG E
Planning Preparation Plant Improvements?
C
OAL PR EPA RA T IO N P L A N T and tipple men are taking a close look at equipment problems these days. Inevitably, the years just ahead w ill bring increased mechanization in c o a l. . . for only through the increased operating economies o f better equipment can coal operators be sure o f a sound competitive position in tomorrow’s markets.
That’s why equipment needs for tomorrow’s opera
tions must be appraised realistically today. And that’s where Allis-Chalmers can be o f invaluable help to you. Allis-Chalmers is an "industry-conscious” organ
ization . . . employs specialized engineers whose job is
to study coal processing methods and equipment from a cost-cutting, t o n n a g e increasing point o f view. These specialists guide in the selection o f your equipment and help develop new, improved processing equipment.
There’s no substitute for Allis-Chalmers’ long ex
perience in building coal processing and power equip
ment . . . no substitute, either, for the fact that Allis- Chalmers builds this equipment in a maximum range o f types and sizes. Experience has shown that m a x i m u m efficiency a n d e c o n o m y c a n b e o b t a i n e d in n o oth e r w a y ! Contact the A-C representative nearest you.
Al l i s-Ch a l m e r s, Mi l w a u k e e 1 , W i s c o n s i n.
CENTRIFUGAL PUMPS MOTORS AND DRIVES
G E T D E P E N D A B L E , T R O U B L E - F R E E P O W E R with Allis-Chalmers’ com
plete line of motors and drives. Above is shown a 25 hp Type ARZ totally-enclosed fan-cooled Allis-Chalmers motor and Texrope V-belt drive installed in a coal tipple. Dusty, gritty location does not harm m o to r. . . cooling air is circulated without touching interior wind
ings. Texrope V-belt drives afford maximum resistance to wear be
cause belt covers are double ply and made of tough, rubberized fabrics cut on a bias._ Send for B U L L E T I N B 6 0 5 1 F and B 6 0 5 2 F .
• b u i l d s f o r C O A L
T H IS C O M P A C T 4 x 3 E L E C T R I F U G A L Pump recirculates water from set
tling pond back to dewatering screens in coal tipple. Both pump and motor are combined in one compact u n it. . . rotor and pump runner are on a single shaft. T he Electrifugal Pump takes up one-third less space than comparable pumps, and operates in any position.
Maintenance is easy because all parts are easy to get a t . . . reducing down time. Splash-proof construction. Single or double stage; sin
gle suction. Capacities to 2800 gpm ; heads to 300 ft. B 6 0 1 8 . A 2141
COAL AGE • /anuary, 1947 9
MARKETING FLEXIBILITY a d d e d without extensive plant alterations
preparation structure
10 January, 1947 • COAL AGE
Extra Sizing Capacity without adding new
M in e preparation plants and service facilities frequently are confronted with market dem ands beyond their capaci
ties. These installations have been erected without due regard to changing conditions. A s a consequence they have limited flexibility in m eeting new situations or in
creased dem ands excepting through excessive conversion expense.
Such a problem was encountered by the Perry C o a l C o m pany at its St. Ellen Mine, near O 'Fallon, Illinois. In this instance, the problem was handled by the installation of an Am erican D ro p -C a g e C rush er strategically placed under its nut coal bin. W ith such a location the coal
either m ay be fed by gravity direct from the bin to the crusher and converted into 3/4 inch screening for truck loading, or it m ay be loaded from the bin into trucks by-passing the crusher.
Through this arrangem ent an additional size of coal is available for custom ers’ requirements with substantial storage capacity enabling the com pany to give its usual prom pt service. This installation has adde d new flexibility to the plant without extensive plant revision, without disrupting production and at a minimum cost.
C a n your plant benefit and increase its flexibility with such an installation?
W r i t e f o r d e t a i l s o n t h e A m e r i c a n D r o p - C a g e C r u s h e r
1119 M ACKLIND AVE.
ST. LO U IS TO, MO.
—h a u lin g h e a v y lo a d s
O N t h e h ig h w a y !
— t o u g h r u n n in g m a t e f o r G o o d y e a r ' s f a m o u s H A R D R O C K L U G — s till th e w o r ld 's to u g h e s t w o r k tire f o r s t r a ig h t b r u t a l o f f - t h e - r o a d s e rv ic e .ROAD LUG TIRE W
B U Y a n d S P E C I F Y
g o o d A e a r
— it pays!
TWO TOUGH
JOBS
H
e r e ’ syou r n ew and different
work tire—a d ou b le-d u ty h u sk y th a t operates off a n d on
th e road like a hard-w orking H ercules.
I t ’s th e n ew G oodyear R oad Lug
— tougher and stronger th an any regular prew ar truck tire because it ’s fortified in b oth tread and b o d y to stan d up and tak e b ru tal, h ea v y -d u ty service O F F th e road, and deliver lo w -co st m ileage O N th e h igh w ay.
D esign ed for lo g g in g , coal and b uild in g su pp ly d eliv ery , co n struction and sim ilar o p e r a tio n s ,, th is great hauler does th e double job o f going off th e road for h ea v y
loads and ta k in g th em over th e h igh w a y. I t ’s bodied w ith to u g h , h ea t-resistin g rayon cord for su per strength and bruise resistance.
And its ex tra -h ea v y tread , p ro
vid in g m axim um resistance to cu ttin g and sn aggin g, has alter
n ate long and short bars so it can dig in for traction and still ride th e high w ay.
I f your needs call for tire brawn to deliver such d o u b le-d u ty ser v ic e , G oodyear’s n ew R oad L ug is for y o u . I t will give y o u new standards in perform ance, and another big reason w h y "more
to n s a re h a u le d o n G o o d y e a r tr u c k tire s th a n o n a n y o th e r k in d .’’’’
Road Luar—T.M. The Goodyear Tiro & Rubber Company
b r u t a l h a u ls O F F t h e r o a d !
—h a n d lin g
CO AL A G E • January. 1947 11
iliil
m
•v ": ' : ■- ' y;.: :/ ' =V V
"Ix < i r ‘ = -c ; •„ j-\*.v ■ j j . p v x v . .
ASSURED PROTECTION
FOR BOTH ROPE AND GEARS
' ___
Ä ^ W Ä i ^ Ä l E i *
W
IRE ROPEand op en gears
. . .on strip p in g sh ovels, hoists and other m ine e q u ip m e n t. . . w ill last lo n g er and serve you better w h en you keep them lubricated w ith
T e x a c o C r a te r . T h is statem ent is borne ou t by the exp erience o f operators everyw here for m ore than 30 years.
O n w ire rope, C r a te r “ A ” g iv es lon g -la st
in g p rotection inside and out. It m aintains an effective barrier against m oisture, cor
rosion and dirt . . . lubricates the strands against fr ic tio n . . . keeps rope flexib le, strong and easy to h and le. C r a te r “ A ” penetrates . . . preserves the co r e...m a ter ia lly reduces wear.
O n op en gears, C r a te r ’s tou gh , clin g in g film cushions load shocks, quiets n oise and prevents m etal-to-m etal wear.
Texaco Products and L ubrication E ngin eer
in g Service are availab le everyw here. Call the nearest o f the m ore than 2300 T exaco d istribu tin g plants in the 48 States, or w rite T h e Texas C om pany, N a tio n a l S a le s D i v i s io n , D e p t. C , 133 East 42nd Street, N e w Y ork 17, N . Y .
T E X A C O M A I N T E N A N C E L U B R I C A T I O N C H A R T S . L e a d - in g m a n u fa c t u r e r s o f u n d e r g r o u n d c o a l m in in g m a c h in e ry a p p r o v e T e x a c o p r o d u c ts f o r use o n cutters# lo a d e r s , lo c o m o tiv e s , etc., a n d h a v e c o o p e r a t e d in p r e p a r in g th ese ch a rts. C h a r ts s h o w c le a r ly w h e r e a n d w h e n to use th e p r o p e r T e x a c o lu b r ic a n ts . O r d e r th e c h a rts y o u n e e d b y m a k e a n d m o d e l o f e a c h m a c h in e .
T u n e in * . . T E X A C O S T A R T H E A T R E
p re s e n ts th e N E W E D D IE B R A C K E N S H O W
e v e ry S u n d a y n ig h t.
M e t r o p o li t a n O p e r a b r o a d - casts S a t u r d a y a ft e r n o o n s .
12
A
m a
January, 1347 • C O A L A G E
'
L f i i h r i &* m
1
■
m
m m
m m M r ■ B M W3 I B H
■3 9
F O R T H E C O A L M I N I N G I N D U S T R Y
COAL A G E • January, 1947 13
M o n u f a c t u r e r s
H a r d , A n n e a le d o r T e m p e r e d H ig h a n d l o w C a r b o n F in e a n d S p e c ia lt y W ir e . F la t W ir e , C o ld R o lle d S t r ip a n d C o ld R o lle d S p r in a
... how much is it worth?
I N 1841, two years before the first telegraph line was in
stalled in this country, and when there were but 27 states in the U nion, John A ugust R oebling was inspired with the idea o f making a new kind o f rope o f unheard o f strength and flexibility. His confidence in his idea caused him to risk everything he had on the developm ent o f his new rope.
H ow much is his confidence worth to Industry today, which cou ldn ’t turn a wheel w ithout the modern wire rope?
Today, the John A. R oebling’s Sons Com pany invests much time, effort and m oney in the developm ent o f improved products to keep alive the confidence o f its many customers.
R oebling values this confidence as its greatest asset. T hat’s why it offers you the greatest value for every dollar you invest . . . in a n y R oebling product.
HOW TO SA V E W IRE ROPE DOLLARS
W ire rope is a m achine o f m any parts and, like any m ach ine, even the finest o f wire ropes can be destroy
ed quickly through faulty installation or im proper m aintenance. T o insure against this possibility, R oeb lin g established its Field Engineering Service.
Every R oeb lin g Field Engineer has a thorough k now ledge o f w ire rope . . . its types, its uses, its features and lim itations. T his k now ledge plus the experience he gains in his daily con tacts can be a great asset to y o u . . . helping you solve th o se tou gh wire rope problem s . . . givin g y o u m ore service for each wire rope dollar.
G et to know you r R oeb lin g Field Engineer. Call him at you r nearby R oeb lin g Branch Office.
JO H N A ROEBLING'S SONS COM PANY
T R E N T O N 2 , N E W JE R S E Y B r a n c h e s a n d W a r e h o u s e s in P r i n c ip a l C it ie s
FOR E X A M P L E - " B L U E CENTER" STEEL WIRE ROPE
r
Roebling entrusts your confidence in Roebling and Roebling products to the performance of its “ Blue . Center” Steel Wire Rope. It is the best rope Roebling knows how to make. It is available as preformed or non-preformed, in a complete range of sizes and constructions to meet a great variety of operating conditions. Its uses are almost un
limited and its performance is con
sistently economical.
E le c t r ic a l W ir e a n d C a b l e • S u s p e n s io n B r id g e s a n d C a b le s
A ir c o r d , A i r c o r d T e r m in a ls a n d A i r C o n t r o ls • L a w n M o w e r s
R O E B L I N G
A C E N T U R Y OF C O N F I D E N C E
T H E G O O D M A N P O W E R D U C K B I L L
A l l m o v e m e n t s p o w e r c o n t r o l l e d
MAN MANUFACTURI NG COM PA NYHALSTED STREET AT 48TH • CHICAGO 9, ILLINOIS
January. 1947 • COAL AG E COAL AGE • January, 1947
A d m in istra tio n b u ild in g o f Sinclair’s n ew Research Center at H arvey, III. E. W . Isom , at right, Vice President in charge o f Research, was recently aw arded th e fam ed Stevens In stitu te M edal fo r th e m ost outstanding con
trib u tio n to p etro leu m engineering.
S I N C L A I R R E F I N I N G C O M P A N Y • 6 3 0 F I F T H A V E N U E , N E W Y O R K 2 0 N Y
o n r r r T » T V T T \
IB January, 1947 • COAL A C E
. . . to solve your lub problems
S in cla ir is c o m p le tin g a n e w $ 4 ,0 0 0 ,0 0 0 p etr o le u m research and d e v e lo p m e n t laboratory H a rv ey , 111. T h is g re a t research center - to b e th e m o st m o d ern and b est eq u ip p ed in th e in d u stry — clim a x e s m ore th an 30 years o f co n sisten t a ch iev em en t in th e d e v e lo p m e n t o f su p erior p rod u cts fo r th e so lu tio n o f you r m o st d ifficu lt lu b ric a tio n p ro b lem s.
T h e o u tsta n d in g s k ill and v a st tech n ical k n o w le d g e o f re cogn ized ex p erts in th e p e tr o le u m field w i ll c o n tin u e to serve you at H a rv ey as th ey h a v e fo r so m an y years at East C h icago.
For tested , p ro v en lu b rican ts . . . d e s i g n e d b y s p e c i a l r e s e a r c h f o r s p e c if i c in d u s tr ia l a p p l i c a t i o n . . . rely o n R e s e a r c h -
W i s e S in c la ir .
S c c t c i e U n / ¿ c it ec ue ttv e ^ . u ^ n c o z c t t d
¿on, Stntfe. 'Tffatttty.
For Engines:
O P A L I N E M O T O R O I L O P A L I N E T B T M O T O R O I L
(F o r se v e re se rv ice)
T E N O L (Heavy Duty — For Diesels) For Gears:
O P A L I N E G E A R L U B R I C A N T S For Chassis:
O P A L I N E C H A S S I S L U B R I C A N T For W h eel Bearings:
S I N C O L U B E
B e th le h e m ’s N o . 5 s te e l tie w ill b e a r the fu ll w e ig h t o f y o u r h e a v y m otors, cutters, a n d lo a d e r s . B uilt to ta k e a b u s e , it e m b o d ie s a q u a rt e r - c e n - t u ry ’ s e x p e r ie n c e in the m a n u fa c tu r e o f s te e l m ine tie s — m illio n s o f them .
MEAN MORE VALUE PER DOLLAR
T o d a y th e d em a n d fo r h ea v ier ste e l m in e tie s is g rea tly o n th e in c r e a s e , sp u rred by th e u se o f m o d e r n , h ig h ly -m e c h a n iz e d eq u ip m e n t.
T h is b ears o u t w h a t w e h a ve sa id fo r a l o n g tim e: u n d er p r e se n t c o n d i
tio n s th e h ea v ier tie s g i v e g r e a te r v a lu e p e r d o lla r — b etter an d lo n g e r se r v ic e
—than lig h t w e ig h t ties.
A B e th le h e m N o . 5, fo r in sta n c e , w e ig h s 5 lb p er ft o f s e c tio n . It is b u ilt sp e c ific a lly fo r th e p o p u la r 4 0 -lb rail s o w id e ly u sed w ith h eavy track- m o u n te d eq u ip m e n t. Y e s , its in itia l c o s t is h ig h e r th an that o f a N o . 2 o r a N o . 3. B u t it w i l l la st s o m u ch lo n g e r th at its p u r c h a se is e c o n o m y in th e en d .
It is n o t at a ll u n c o m m o n fo r a B e th le h e m N o . 5 to b e tak en up and r e u se d 2 5 tim e s o r m o r e . A sk fo r fu ll d e ta ils.
BETHLEHEM STEEL COMPANY, BETHLEHEM, PA.
O n th e P a c if ic C o a s t B e th le h e m p r o d u c ts a r e s o ld b y B e th le h e m P a c if ic C o a s t S te e l C o r p o r a t io n
jETHfEHEM STEEL
C O A L A G E • January, 1947 J9
The moment you look at a V-Belt in its _ sheave you see at once that the
sidesof the belt do
all the gripping on the pulley and get all the li-SSaaiKI ivear against the sheave-groove wall. lll® P ip tlS
Notice, too— it’s the
sidesthat pick up all the power de
livered by the driver pulley. The sides
transmitthat power to the
belt as a whole.And then, once more, it’s the sides— and the sides
alone— that grip the driven pulley and
deliverthe power to it.
T h a t ' s W h y
The FACT That the CONCAVE SIDE
(A G A TES PATE NT J
REDUCES Sidewall
Is IMPORTANT to You!
S t r a i g h t S id e d V -B e lt
H o w S t r a i g h t S id e d V -B e lt B u lg e s W h e n B e n d i n g A r o u n d
I t s P u l l e y
S f i S S S Ê IN ALL I N D U S T R I A L C E N T E R S ¿ £ £ - ¿ 2 V U L
The fact that the
sideis the part that does the w'ork and gets the wear explains why you have always noticed that the sidewall of the
ordinaryV-Belt is the part that wears out
first.Naturally, then, when you lengthen the life of the sidewall you lengthen the life of the belt.
The simple diagrams on the right show exactly why the ordinary,
straight-sidedV-Belt gets excessive wear along the
middle of the sides.They show also why the Patented Concave Side
greatly reducesside
wall wear in Gates Vulco Ropes. That is the simple reason why your Gates Vulco Ropes are giving you so much longer service than any straight-sided V-Belts can possibly give.
Longer Sidew all W e a r Is
NOW M ORE IM PORTAN T Than Ever Before!
N ow th at G ates Specialized R esearch has resulted in V -B elts having' much stronger tension members—ten sion mem bers of Rayon Cords and Flexible Steel Cables, am ong others— the sidew all of the belt is often called upon to transm it to the pulley much heavier loads. Naturally, w ith heavier loading on the sidewall the life-prolonging Concave Side is more im portant today than ever before!
TIIE GATES R U B B E R COMPANY, D EN VER , U .S .A . W o rld ’s Largest M akers o f V-Belts
Y o u c a n a c t u a l l y f e e l t h e b u l g i n g o f a s t r a i g h t - s i d e d V -B e lt b y h o l d i n g t h e s i d e s b e t w e e n y o u r f i n g e r a n d t h u m b a n d t h e n b e n d i n g t h e b e l t . N a t u r a l l y , t h i s b u l g i n g p r o d u c e s e x c e s s iv e w e a r a l o n g t h e m i d d l e o f t h e s i d e w a l l a s i n d i c a t e d b j- a r r o w s .
G a t e s V -B e lt w i t h P a t e n t e d C o n c a v e
S id e w a ll
S h o w i n g H o w C o n c a v e S id e o f G a t e s V - ' B e l t S t r a i g h t e n s to M a k e P e r fe c t F i t in S h e a v e G ro o v e W h e n B e l t I s B e n d i n g
O v e r P u l l e y
N o B u l g i n g a g a i n s t t h e s i d e s o f t h e s h e a v e g ro o v e m e a n s t h a t s id e w a ll w e a r i s e v e n l y d i s t r i b u t e d o v e r t h e f u ll w i d t h o f t h e s i d e w a l l — a n d t h a t m e a n s m u c h l o n g e r lif e f o r t h e b e l t !
20 January. 1947 • C O A L A G E
We sh o w a Je ffre y 20-ton H a u la g e
locom otive pulling a f u ll train of cars
at a large property in P e n n sy lv a n ia .
Send for our Locomotive Catalog 790.
LOCOMOTIVES
LOADERS
CUTTERS
DRILLS CONVEYORS
DRILLING MACHINES
THE J E F F R E Y M A N U F A C T U R I N G C O M P A N Y
¿ î s l a l f i i l e i l i n 1 8 7 7
Chicago Cleveland Cincinnati Detroit
Denver Harlan Houston Huntington Baltimore
Birmingham Boston Buffalo Pittsburgh Harlan, Ky.
Jeffrey Mfg. Co., Ltd, Montreal, Q uebec
Sales Offices; Milwaukee
New Y o rk . Philadelphia Pittsburgh Logan-Beckley
W . V a .
Scranton St. Louis Salt Lake City Birmingham
St. Louis
Service Stations; Scranton
British Jeffrey-Diamond, Ltd, W akefield. England
Foreign Plants: Jeffrey-Galion (P ty), Lfd,
Johannesburg, S. A .
T O P E R F O R M
R I G H T
¿ H e y m u e t Joe.
k Á u i é t s U y ú t
J E F F R E Y S E R V I C E T O T H E C O A L M I N E S M E A N S S E R V I C E T O A L L I N D U S T R Y
O S h o w n h ere are t w o ste p s in th e a ssem b ly o f Jeffrey L o c o m o tiv e s . T h e s e m e n h o ld in th eir h a n d s th e s e r v ic e re co rd s o f e q u ip m e n t in th e m a k in g . . . e q u ip m e n t t h a t h a s n o t y e t h it t h e r a ils .
In sh o r t, th e m e ch a n ica l k n o w le d g e , s k ill an d carefu l w o r k m a n sh ip b u ilt in t o th e se lo c o m o t iv e s b y J effrey e m p lo y e e s are reflected i n t h e s e r v ic e r e c o r d s o f th is e q u i p m e n t i n a c t u a l s e r v i c e .
W e s a l u t e t h e m f o r t h e j o b t h e y a r e d o i n g , an d are p r o u d o f
th e s e r v ic e J effre y e q u ip m e n t is r e n d e r in g o p e r a to r s in a ll co a l-
p r o d u c in g areas.
STANDARD OIL COMPANY ( IN D IA N A ) « « !
W a k e u p ' i i d l e i d l e r s w i t h
— ( / * « . / ;
. . . S a v e p o w e r , b e l t s , a n d
• h a n d l i n g c o s t s o n c o n v e y «
A r e c o n v e y o r i d l e r s slow to start up in cold weather? D o they heat up, throw off grease, and run dry when the weather’s hot?
A change to a better lubricant may make these lazy idlers carry their share o f the load — and, incidentally, save on power, belt wear, and coal- handling time.
Superla Greases are ideal for idlers. Grades are available that permit idlers to turn readily at low
temperatures. Yet these lubricants do not thin out or separate when normal operating temperatures are reached. W here temperatures are above nor
mal (over 175 °F), Superla X Greases resist separa
tion and oxidation, and have good sealing quality.
A Standard O il L ubrication E n gin eer wi l l gladly help you make a test. Standard Oil Com
pany (Indiana), 9 1 0 South M ichigan Avenue,
Chicago 80, Illinois.
Nia9°,a
i H
To m e e t t h e s e a n d o t h e r c o n d i t i o n s p e c u lia r to m in e h a u la g e , O -B d is c a r d e d r a il r o a d - t y p e d e s ig n s a n d d e v e lo p e d th e c o u p le r s h o w n h e r e — a c o u p l e r w h o s e m in e -e n g in e e r e d ex tra s a ssu re its p ro p er fu n c tio n in g u n d er m in e s e r v ic e . D o n 't f a il to i n v e s t i g a t e it if y o u are c o n te m p la tin g th e p u r c h a s e of n e w m in e cars. A p o s tc a r d r e q u e s t w ill b r in g full in form ation .
O -B A u to m a tic M in e Car C o u p le r s b ea r little r e s e m b la n c e to railroad co u p le r s
— a n d for v e r y g o o d rea so n s! M in e h a u l
a g e c o n d it io n s a r e d if f e r e n t . S h o r te r c u r v e s a n d m o re f r e q u e n t o p e r a t io n o n c u r v e s m a k e e x t r a - w i d e g a th e r in g r a n g e a n e c e s s it y . C ars m u st b e m a d e to o p era te o v e r sh arp b r e a k s in g r a d e s at d ip s a n d k n u c k le s.- Im p a ct b lo w s from s u r g in g are p r o p o r tio n a te ly m o re s e v e r e r e q u ir in g a draft g e a r o f a m p le c a p a c ity . A s t a b i l i z i n g p r e s s u r e i s n e e d e d to c o u n te r a c t a m in e car's n orm a l te n d e n c y to d e r a il u n d e r p u s h or buff.
EXTRA-WIDE G A TH ER IN G
RANGE AUTOMATIC SELF
CENTERING
POSITIVE INTERLOCK EXTRA-CAPACITY
DRAFT GEAR
W it h O - B ' s m a l e - a n d - f e m a le ty p e c o u p le r h e a d s , m a x im u m g a t h e r in g r a n g e is p r o v id e d . D e p e n d i n g u p o n t h e c a r c o n s t r u c t io n a n d its r e la t io n t o t h e t r a c k , O - B C o u p l e r - e q u ip p e d c a r s w i l l o p e r a t e o v e r a n d a u t o m a t i c a l l y c o u p l e u p o n c u r v e s o f
O n c e c o u p le d , O - B A u t o m a t ic C o u p le r s s ta y c o u p le d . T h e r e 's n o c h a n c e o f a c c i d e n t a l d is e n g a g e m e n t o r i n t e r c o u p le r m o v e m e n t. A m o v e a b le ca m o n th e f e m a le h e a d f it s s n u g ly in t o a c o r r e s p o n d i n g n o t c h o n t h e m a l e h e a d . T h e h a r d e r y o u t r y to p u ll th e h e a d s a p a r t , th e t ig h t e r th e c a m fit s in t o th e n o tc h .
T h e r e 's n o n e e d to a l ig n O - B C o u p le r h e a d s m a n u a ll y b e f o r e c o u p lin g — a s e lf - c o n t a in e d c e n t e r in g a r r a n g e m e n t a u t o m a t i c a l l y k e e p s t h e h e a d s in c e n t e r - t o - c e n t e r a l i g n m e n t . A n im p o r t a n t s a f e t y fe a t u r e , a u t o m a t ic s e l f - c e n t e r i n g k e e p s y o u r w o r k m e n o u t o f t h e d a n g e r z o n e b e t w e e n t w o m in e ca rs .
T o u g h , s p r in g y r u b b e r b u f f in g p a d s r e p la c e b r e a k a b l e s t e e l s p r in g s in O - B 's m o d e r n d r a f t g e a r a s s e m b ly . C o m p le t e ly e n c lo s e d , th e r u b b e r d r a f t g e a r w i l l a b s o r b im p a c t b l o w s u p to 5 0 ,0 0 0 p o u n d s — a s m u c h a s 1 0 0 ,0 0 0 p o u n d s o n th e n e w F o r m - 8 d e s ig n .
INCREASED TRACK STABILITY
N e w in p r in c ip le , th e im p r o v e d F o r m - 8 C o u p le r a c t u a ll y h e lp s to k e e p y o u r m in e c a r s o n th e t r a c k b y p r e v e n t in g b u c k lin g u n d e r p u s h o r b u f f . C a r s a r e h e ld in c e n te r - to - c e n t e r a lig n m e n t o n th e t r a c k , a r e n o t a l lo w e d to z ig z a g a s is th e c a r 's n o r m a l t e n d e n c y u n d e r p u s h o r b u f f .
COAL AGE COAL AGE • January. 1947
eneral Offices: Henry W. Oliver Building, Pittsburgh, Pa
SHAKER CONVEYORS
h a v e C u s h io n D riv e
Cushion stroke redu ces shock loads and mainte- i n a n c e costs. Turns [ made up to 9 0 degrees.
' Extensions or redu c
t i o n s i n c o n v e y o r
^ len gth easily accom -
|F plished wkh minimum manpower and effort.
L A - D E L U n d e r g r o u n d
BELT CONVEYORS
in R o o m , H a u la g e a n d G a th e r in g T y p e s
^ For a continuous, smooth flow of coal, esp ecially on rolling and dipping mine bottoms, depend
Irflill
o n L a ' ^ e l l°w t e n 'sion units. All idlers B H v have exclu sive sealed- fo r -life a n ti-fr ic tio n precision bearings.
L A - D E L U n d e r g r o u n d
CHAIN CONVEYORS
i n R o o m , F a c e a n d G a th e r in g T y p e s
C om pact, lig h tw e ig h t, d esigned for efficient, low cost operation, and I long life under difficult f conditions. Reversible drives; may b e mount-
|t ed on either side of
" these chain conveyors.
A COMPLETE ENGINEERING SERVICE FOR DESIGN, PLANNING AND INSTALLATION
R ugged an d easy to o perate, m ob L o ad ers m a in ta in m axim um lot rates, pro d u cin g coal fast, a t lowe:
'W taH ufrictcvien*. o j T V uic IRaJre, 7 (/v te “R o fic “p i t t i n g , ^ n c& te
MAIN O F F IC E S AND FACTORY: CLEVELAN D 13, O H IO
114 Broad Street 737 W. V an Buren Street 241 O liver Building
N ew York 4 Chicago 7 Pittsburgh 22
H O I S T H O O K S
W IR E R O P E W I R E R O P E T H I M B L E S
W I R E R O P E S N A T C H B L O C K S
D I A M O N D F R A M E W I R E R O P E B L O C K S
N O TE: A s w e go to p ress, d e live rie s on turn- buckles an d sh ackles a r e also good,
E s t a b lis h e d 1 8 7 1
3 0 January. 1347 ■ COAL A G E
A " C a t e r p i l l a r " D ie s e l D 7 T r a c t o r b u lld o z in g r o c k a n d b o u ld e rs , b u ild in g se t-u p f o r d r a g - jin e o n c o a l- s tr ip p in g o p e r a t io n n e a r H e c k s c h e r v ille , P a .
F
ewcoal-stripping jobs present tougher operating conditions than those at Pine Knot, near H eckscher
v ille , Pa. Here the Capparell Stripping Construc
tion Co. has a total of 2 7 “ C aterpillar” D iesel units at work. T hey include 17 drag-lines powered by
“ C aterpillar” D iesel E ngines, 7 “ C aterpillar”
D iesel D 7 Tractors equipped with bulldozers, and 3
“ C aterpillar” D iesel-pow ered com pressors running the drills.
The country is h illy and rugged, requiring plenty o f heavy tractor work to build set-ups for the drag
lin es and roads for the trucks.
S ays Mr. S. T. Capparell: “ Those tractors are getting a real beating around this territory o f rock and boulders, but they’re doing everything you claim for them — and m ore to o !”
Owners expect more from “ C aterpillar” D iesels, and g e t it. These sturdy m achines are b uilt to take the toughest jobs in their stride and keep right on rolling up profitable work hours for the men who own them.
C A T E R P I L L A R T R A C T O R C O . • P E O R I A , I L L I N O I S
C A T E R P I L L A R DIESEL
ENGINES • TRACTORS MOTOR GRADERS EARTHMOVING EQUIPMENT
C O A L A G E • January, 1947
Split-Second Timing is the answer . . .
A T L A S R O C K M A S T E R B L A S T I N G S Y S T E M
G i v e s Y o u L e s s B a r k . . . M o r e B i t e
32 Ja n u a ry. 1947 > CO AL A G E
In sk iin g, ch am p ion sh ip resu lts com e from th e right eq u ip m en t p lus k now h ow plus sp lit-seco n d tim in g . W ith R o ck m a ster, th e b la ster is n ow able to tim e th e d ela y elem en ts o f his sh o t in th o u sa n d th s o f a se c o n d — a con trol o f tim in g n ever before p ossib le. T h e im p a ct it has b rou ght to b la stin g is tre
m en d ou s b ecau se after th e rock is h it on ce, it is h it again . . . a sp lit-secon d later . . . w ith sen sa tio n a l results.
T h e p a y o ff in perform an ce has been rem arkable. In b lastin g op era tio n s all o v er th e c o u n tr y fra g m en ta tio n has in
crea sed — in m an y in sta n ces as m uch as 30% . S h ovel efficien cy has been step p ed up. S econ d ary sh o o tin g has been held to a m inim u m . A nd . . . b elieve it or not
. . . co m p la in ts ab ou t noise and v ib ra
tio n h a v e b ecom e p ractica lly n egligib le in m ost cases, ev en w h en m ore holes are sh o t at on e tim e!
O f course, sp lit-seco n d tim in g is on ly part o f th e answ er. F or A tla s R ock - m aster is n ot ju st a d ev ic e. R o ck m a ster is a co m p lete b lastin g sy stem . A ll fac
tors o f th e b la stin g p rob lem — d eto n a tors, ex p lo siv e and lo a d in g — are taken in to accou n t and com b in ed w ith you r k n ow -h ow and ours to produce true R o ck m a ster effectiv en ess.
C all in yo u r A tla s rep resen tative.
A sk him to tell you h ow ou r k n ow led ge o f ex p lo siv es and y o u r k n ow led ge o f th e job can be com b ined to produce o u tsta n d in g results.
M n n a slte : R eg . U . S. P u t. O il. " R O C K M A S T E R " — T radem ark
P O W D E R C O M P A N Y , W ilm in g to n 9 9 , D el.* O ffic e s in p r in c ip a l c itie s • C a b le A d d r e s s —A tp o vu co
ROCKMASTER GIVES YOU TIIE GREATER SAFETY OF MANASITE
DETONATORS
ELE V A T O R M OTOR t»
25 R E F U S E CONVEYOR
ORIVE 37
A U TO M ATIC FLO A T C O N TRO L V .
\|*F LO A T V A LV E 3 0
F L O A T -
R E F U S E CHUTE gsr 32
S h a k e r m o t o r
SHAKER SUPPO RTIN G BEAM29 19
F L O A T . TANK 23
PERFO RATED B A F F LE
C O A L LAUN DER
■" O VERFLOW 31
FLEX IB LE - DRIVE ARM 30
FLEX IB LE
SHAKER ARMS 3 ALAIN
SEPARATIN G TANK DEW ATERIN G SHAKER
SCREEN \ 4 RO TATIN G
A G IT A T O R 13 C LE A N C O A L
C H U TE
7k łuTO M A TlC
BUTT£HFl>>
IVA IV £ / 13 SUM P
O VERFLOW VARI • SPEED
PUMP DRIVE
II
R EC IP R O C A TIN G PUMP R EFU S E
ELEVATO R
10
PUMP INTAKE
. « PIPE . j •CHECK
VALVE
SUMP
T A N K R EFU S E y y 22
'S » SLUSH / ©ATE
25
¡LU SH G A T E HANDLE PUMP
MOTOR
22A
S LU S H G A T E jfcj£T
H E R E ’S N E W S . . . about How You Can Now Prepare Coai Automatically and Efficiently in a Small Tonnage Plant
T H E
SMALL-SIZE
‘W iU tto i
HYDROTATOR
This new W ilm ot H yd ro tato r no w e n ab les o p e r
ators of sm all mines, silt a n d refuse banks, river- men a n d others to m ech anically pre pare coal with an efficiency, e con om y a n d controlled quality equivalent to that of larg e operations. That’s w h y it is p rovin g im portant news.
The ne w sm all-size W ilm ot H yd rotator is a com
plete o p era ting unit, it’s simple. It’s fu lly a u to matic, with self-re guiation for a n y ch a n g e s in
quality an d quantity of intake. D u r
ing periods of interrupted feed there is no loss of g o o d coal because au to
matic controls close but- Jl ...
terfly valve in refuse d is
charge line. It cuts costs dram atically: needs o n ly part of one m a n ’s time for routine m aintenance;
uses less than 6 0 g a llo n s o f w ater per min.; re
quires o n ly 5 to 7 Vi h o rse p o w e r for pump, a n d 1 each for d e w a te rin g screen a n d refuse conveyor.
Diam eter of cone, 2 ft. 6 in.
A n individual unit is used fo r cle aning each of these sizes: Pea, Buck N o . 1, Rice, Barley, N o. 4 a n d N o. 5. Feed capacity, 10 to 2 0 tons per hour.
Let us send yo u further details of h o w this new unit increases quantity a n d qu ality of yield.
W i l m o t C o a l P r e p a r a t i o n E q u i p m e n t : H y d r o t a t o r s • H y d r o t a t o r - C l a s s i f i e r s . H y d r o - S e p a r a t o r s • S i m p l e x Jigs C r u s h i n g R o lls • S i z i n g S h a k e r s « B u c k e t E l e v a t o r s • C o n v e y o r s • C a r H a u l s • K e y s t o n e R i v e t l e s s C h a i n , e t c .
W I L M O T B U I L D S B E T T E R B R E A K E R S
C O A L A G E • January. 1947
■f '
'SfngXZgZ•.". v: '~'î^3
Eye Accidents Cost Industry er shop worker
per Y e a r ? ..
* ( S o c i e t y f o r t h e P r e v e n t io n o f B lin d n e s s )
of all Eye Accidents are Preventable
by Wearing Goggles
A m e r i c a n I P O p t i c a l
COMPANY
S a fety D ivisio n
Send t o yo u r n e a r e s t M S A
R e p r e s e n t a t iv e o r d i r e c t t o A m erican O p t i c a l Company, B ox C, f o r a cop y o f t h e new b o o k l e t , "Eye A c c id e n t C o s t s ," w h ich t e l l s how much e y e a c c i d e n t s c o s t , how t o p r e v e n t them and how much you ca n s a v e by p r e v e n t in g them .
S O U T H B R I D G E , M A S S A C H U S E T T S B R A N C H E S I N P R I N C I P A L C I T I E S
34 January, 1947 • COAL AG E
A P P R O V E D
FOR PERFORMANCE
For years m ine operators h a v e p laced full con lidence in the superb perform ance q u al
ities of Rome 60 C ables. T hey're d esig n ed an d constructed to stand the gaff of long, trou b le-free service under the most sev ere conditions.
APPROVED
FOR SAFETY
“ APPRO. NO. P-105" m olded into the jacket of Rome 60 M ining C ab les is the official okay of the State of Penn
sylva n ia. It m ean s that th ese tough cab les conform to all safety regulations in that State. T hey're super flam e-resistant.
The Rome 60 Line includes:
SINGLE CONDUCTOR
LOCOM OTIVE GATHERING CABLE TYPE W PORTABLE POWER CABLE TW O CONDUCTOR
CONCENTRIC MINING MACHINE CABLE PARALLEL (TW IN )
DUPLEX MINING MACHINE CABLE
C O A L A G E ■ January. 1947 35
