Aceidents at eoal mines of the United States caused the deaths of 4S bituminous and 2S anthracite miners in June last, according to reports furnished the U. S.
Bureau of Mines by State mine inspec- tors. With production of 22,S50,000 tons, the death rate among bituminous miners was 2.10 per million tons, compared with 2.99 in the correspouding month of last year.
The anthracite fatality rate in June last was 6.45, based on an output of 4.33S.OOO tons, as against 5.49 in June a year ago.
For the two industries comhined. the death rate iu June last was 2.S0, compared with 3.30 in June, 1937.
Fatalities during June iast, by causes and States, as well as comparable rates for the first six months of 193T and 193S, by causes, are shown below.
— r Bitximinous?- --- .Vntiirtict;e--- __ ocal----Nurub^r Kiled Nunaber Kilied per
Mil lic c. Toirs Nuniber Kiiled f i Kiłteć Millioa Tons KIUevi Kil![ed Million '.yo? 19oS 1937 193S 1937 193S 1937 I93S 193? I93S 1937 1938
t.2SS 1.333 73 72 2.600 2.9SS 360 277 1.434 1.377°
114 5S .311 .3S2 17 13 .606 .339 131 71 .322 .404
W H A T S
states that these units are of- fered to make available the fuli operating economy of closer shotholes and consequent light- er powder charges at both anthracite and bituminous mines.
The line comprises four differ- ent-sized drills suitable for one- and two-man operation.
Features listed by the manufae- turer include: reasonable price, strong construction, light weiglit, a selection of speeds to meet varying drill requirements, ing switeh on three of the mod- els. The tools are avai labie for either a.c. or d.c., 110, 220 or 250 Yolts.
CORDS AND CABLES Triangle Conduit & Cable Co., Elmhurst, N e w York City, offers the new Tricord line of “Rub- ber-Armor” cords and cable®, for which it notes the follow
ing features: high resistance to acids, oi 1 =, grease and alkalis, and to breakage from repeated sharp bends or twists; ability to withstand repeated heayy hammer blows and serere abra- sion and long erposure to sun- light; erceptional waterproof
ąualities; great flexibility; non- kinking qualitics; and “all-rub- ber” construction.
Cords offered are the Type S for heavy-duty service where extra flexibility is desired ,and Tricord “Junior,” Type SJ, with a slightly thinner jacket, thus reducing the outside diameter.
Tricord cables include: mining- machine cable, twin parajlel, twisted or concentric conduct- ors; reel cable, single conduct- or; dredge and electric-shovel cables; welding cables, etc. Con- ductors, stated by the company to be extra flexible, are covered with Triangle standard 30-per- cent insulation with colored in- sulation tracers, followed by a 40-per-cent rubber jacket, double seine-twine reinforce- ment applied in reverse diree- tions and, finally, the spccial GO-per-cent “rubber armor,”
after which the cable is vul- canized in metal rnolds under high pressure for toughness, density and elasticity.
Where certain types of oils, acids, chemicals, etc., are en- countered, the company offers Triaprene cords and cables in which the outer jacket is com- pounded of Neoprene, a syn- the oallast to proride a secure base. Power is supplied by a geared-head 3-hp. 220- or 440- volt motor, with a 5-hp. gaso- line engine optionaL
Atlas also offers the Model 35 flight-type conveyor, de- scribed as a lighter machinę for coal handling which can be transferred quickly from one place to another. It is built 90 to 95 per cent power factor, is announced by the General Electric Vapor Lamp Co., Hoboken, N. -J. Use of the double-duty unit, it is stated, permits a reduction of some 20 per cent in transformer costs, as well as additional in- stallation saving. Tran-form er losses are reduced 30 per cent.
Should one lamp bura out, tbe other will operate normally without transformer injury. ing and the other of a epeeial alloy for ©rdinaiy sutrking.
The coznplete unit cooeiru of a fiber handle with two potzrU, a 4x7-Id. work plate and 5 ft. a transformer and four hcadi, or tools, as follows: “Midget,”
smali and lighter soldering, restrlctcd spuces, smali ter- minals and lugs up to 150 ump. or sweating tlircadlcuB copper tubing up to 8 in.;
“Standard,” cotntnon soldcring work, lugs and terminals up to 400 amp., up to 1-in, copper pipo and flttlngs, stator eon- neetions, heating solder cups, etc.; “Fork,” heating smali terminals and lugs impossiblo to reach with other tools; A new full-crawler-mounted high - capacity self - feeding lease, optional high iraveling or slow crowding tpeed and trolley cireuit*. Thii twiteh, aceordicg to the eompaay, i* the operator i* proteeted by a heary rubber hjL&iie, The twjteh
Septem b er. 1938 — COAL AGE 73
ju tiy bo locikiMl ho uh t o p o n u ii’ U anothor Ohio Bras* devolop- mout. Tho pressod-steel ter łuluai ia ł>eut at right augles to tho direction of tho atrarnl, ami ii amall steel hook embraces tho rull to hołd tho boml thmly in płaco whllo It ia being welded.
The 4 0 atrand ia welded into or* the outaide edge of the right- angled hook and is only 1 £ in, long, eompared with the usual S in, weld, thus cutting cost and welding time, in additiojr to fa- eilitating reclamatkm—a simple tap with a chisel across the weld and the terminal is pried off easily without injury, The straud estends to the end of the terminal, aud oon>e<iueutly the copper- to-rail path never ex- ceeda ; in., measured from the center oi the eopyer section. Re- sistance \alues, it is asserted, are e\ceedi!>gly W as a resulc.
Vhe l \ p « Mb' permissible ex- plo.siouproof headlight is an- other Oh to 1'rass produci de- sigued to mect the demand for a smal! aud verv durable iaeau- deseeut headlight for gaseous eomUttoa. A:> e\plosioa-proof inoir-ehipping, peeling or crack' iagS reaistanę to high tempera
turo
i and oaally cleanod) is said to provldo jnaxlmum light out- put. Two focusing arrange- moiita aro availal)lo: a push- pull meclianlam with medium screw baau or a medium pre- llghta ia tho objeetieo of other Ohio llrass deeelopmouts. The Typo M U headlight (gathering) and Typo M S S headlight (haulage loeomotives) now are avail- able with an externally oper
ated focusing mechauism with medium-screw base, push-pull focusing mechauism with me
dium screw base, and medium pre focus base. Type M S and the new Type M F explosion- proof beadlights are furnished in push-pull and pre-focus de- sigus. The exteruallv operated focusing mechauism eliminates, opening the case in any way for adjustiug the beam. All head- łights now are furnished with Alzak retlectors.
To meet the current reąuire- ments of mine headlights, Ohio Brass offers a
jK>rcelain-tubc-type resistance, whieh it de
ser ibes as strong in design and with ample insulatiou and heat- dissipatioa facilities. The com- plete resistance is proteeted bv a perforated steel case.. Units are avai!able for line Yoltages of 220 to 673, and accowmedate lamps from 32 to 113 Yolts aud 36 to 300 watts. ton jacks supecsediuij Nos. $4, S3 a;; '
features of the ne’.v models Ust- ed by the company aresćrong-
It ia said to be especially Suit- ed for use under Iow loada. Ex- ceptional case and speed of operation are cited for the new Simplex No. 24A 15-ton jack.
ment, including earrying case and all accessories, at less than
3 lb. Tests are made while the indicator is held in the hand or fastened in a clip pro- vided in the earrying case. heated, variation in interior temperatures ranges from 1 to 1} deg. C-. plus or minus, depeuditig upon oven size. This :s accomplished by bimetallie therutestats whieh 'uaictain a givea temperaturo within J to 1 deg. C-. plus or minus, over the entire operating rangę, the company asserts. Other fea
tures are heating up to 130 s:sc essencially e£ a number of bort2-bearing Inserts aeeur- aKly loeated and. Srmly brazed into siots in tlie face of the bit bianks. Matrix and
stones are bonded together by a new process said to eliminate cven the effects of temperature changes. In comparison with any other type of bortz-set core-drill bit, savings of 15 to 20 per cent per foot of hole drilled are claimed. The new bits are available in any style and size.
Sullivan also offers improved
“Dual Cusliion” valves in its Class WG-7 single-stage hor- izontal compressors. These strong, simple valvcs are said to give higher efBeiency, quiet action and long wear.
Improvements in “String- alite,” described as the mois- ture-proof ligliting cable that provides the safety and utility of n permanent installation with the wiring simplicity of a temporary job, are another Sullivan development. These improvements include a new molded-rubber socket as well as reyisions in end- and lamp- connector construction for trouble-free service.
WELDING HOSE Electric Hose & Rubber Co., Wilmington, Del., has devel-
$ in.. the hose is recommended by the company for working pressures up to 200 lb. The end can be separated at the factory. if desired, for attaeh- ment of eąuipment. The pres or nuisance, dusts and said to employ unusually inexpensive throw-away filters has been de- veloped by Willson Products, Inc.. Reading, Pa. This res
1. In the use o f tim b e r p ro ducts in a m ine, the greater cost is not the p ric e o f the tim b e r, but the cost o f the la b o r to put it in , take it out ( i f it fa ils ) and re p la ce it. Because pressure-treated tim b e r lasts so m uch lo n g e r than untreated tim b e r, it is p aying fo r its e lf tim e and tim e ag ain in m any m ines throughout the co un try.
T h e C o a i D iv is io n o f the A m e ric a n M in in g C o n g re ss, in its recen t re p o rt, sa id : ''T h e a d d it io n a l cost oj a treated tie usually w ill be m ore th an offset by the sa rin g o] the cost oj the jirst r e n e w a l o j a n u n trea ted tie. E lim in a tio n oj subseąuent un treated tie ren e w a ls w ill continue to p ro d u c e satings throughout the U je oj the tra c k .”
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O T H E R P R O D U C T S A N D U S E S F O R P R E S S U R E - T R E A T E D 6. PiBng 7. Guard Rails 8. Fences 9. Poles 10. E Bins, Sheds 11. Tippfes 12. P ierś, Docks, Whanres 13. PI 14. Flooring 15. Tanks, Sumps, V ats 16. Crossing Plank 1"
Sides and Bottoms 18. Cable Ways 19. Conduit 2 0 . 1 21-Flumes 2 2 . Trench lining& co rers 2 3 . ConYeyor decking 5 s
O T H E R K O P P E R S P R O D U C T S F O R T H E M I N I N G F[E Koppers Rheo!avenr Process. ..Menzie’s Automatic Cone Sep ___Koppers-Uewellyn Automatic W a s b e rs___ K-R-M Dry-C S ep arato rs. . .Coal Tipple s . . . Koppers-Sirtiey D ed usters. . . O Cerrtrifugal D ry e rs...B o ile r and Power P la n ts. . . Mine Sh o p s.
C o u p lin g s...A m e rican Hammered Pistoc R in g s ...C y lin d e r . . . Bronze and Iron C a stin g s. . . Flotation Oils . . . Brtumino P a in ts. . . Coa! T a r R o o fin g ... W ate rp ro o fin g ...T arm ac fo r
T H E W O O D P R E S E R V I N G C O R P O R A T I O N
P I T T S B U R G H , P A .
N A T I O N A L L U M B E R & C R E O S O T I N G C O M P A N Y
TEX A R KA N A , A R K -T E X .
the advant.age of very little A new device for suspending large powerful electric and pneumatic drills, nut setters and other tools abovc the work- ing location is offered by the Independent Pneumatic Tool Co.. Chicago. Known as the Thor “Torque-Arm Balancer,”
this equipment, according to the company, not only supports the tool but also absorbs the torque and completely elimi- nates the danger to the oper
ator resulting from stuck tools.
Rangę of trarel is 3 to 6 ft.;
load capacity js 45 to 100 tons;
weight is 143 lb. incasement, It is suggested for installation where iron for- merly has been used, and is
tion cost. Crushing strength of the conduit is said to be more than double that established for soil tile and also greater standard form a stationary m a chinę, the new welder can be and ease of application on plain and bereled-end pipe are gasket is first slipped over oue end. The two pipe ends then
are brought together and the gasket is mored to corer the joint. Over this the two halves of the coupling are placed and bolted tight.
Speci' 1 tools are not required, it is stated, and the couplings have almost 100-per-eent salv- age yalue. Rollers in the cou
pling housing permit expansion and contraction of the pipe line, and a maximum deflection of line of alloy-steel light-weight ratehet-type raił benders. The tools, according to the company, are stronger, faster, easier to operate and more economical even than the standard tools already developed by the orga- nization, which can be eonrert- ed hy installation of the new ratchet and screw assemblies.
“Gemco Tru-Blu” ratchet bend
ers are ayailable in the follow- ing sizes: E.R. 2, weight 30 lh., et-type raił punches, described as quicker, easier and requiring much less effort to use. The
ratchet is fully inclosed to pre- vent the entranee of dirt and freezing of the working parts. ing out of the wiping action of the non-skid tread on tires for free-rolling wheels. With four ciicumferential ribs, the new tire has a modernistic side-wall design and all the features of the regular line of Goodrich commercial tires, including:
“Plyflex” for the distribution of stresses; “Plylock,” giving protection against short plies tearing loose abore the bcads;
and the new “Hi-Flex” eord, stated to retain its stretch and prerent dangerously high iuter- punching ł- to 7/S-in. lioles ac- curately through either new or rerolled rails for attacliing splice bars or installing raił bonds. The carrying handle is a part of the frame. All wear- ing parts, the company says, are oi special-analysis alloy steel and are easily roplaceabłe, in
cluding the special steel bu=h- ing in which the screw operates.
The punches are available in two stvles: Xo. 40P, weight 33 lb., 12- to 40-lb. raił; Xo. OOP, 35 lb., 12- to 60-lb. raił. Either size, if desired, can be furnished in the ratchet type at a slight additional cost.
DRIFTER
Sullivan Machinery Co., Claremont, X. H., has developed the Sullivan automatic “Ad- just-O-Feed” drifter for which it claims outstanding ease of
more positive feeding, permit- ting drilling upholes with ease;
and use of an air-operated rota- tion release, aiding materially in colłaring holes and freeing
erful drill styled after the JA- 45 and 55 models. Weigliing less than 35 lb., it is said to be adaptable to cutting hitches, trimming, ta.king up bottom, making holes for trolley hang- ers, popholing, etc., besides hav- ing suflicient power for much generał drilling work.
Ingersoll-Rand also offers a new turbine-driven pump which are offered for applications where hazardous gases are pres- ent, for generał industrial ser- vice wliere process steam is ayailable and for boiler-feed ser- yice at boiler pressures up to 200 lb. per square inch. The and sizes. with a 15-hp. single- stage unit, for cxample, having a length of only 32 in.
7 6 C O A L A G E — V o l .4 3 . N o .9