H A M M E R S
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E R I E S T E A M H A M M E R S
M A T E R ! A Xj S P E C I
F O R Y O U R C O P Y O F
N E W B U L L E T I N
ERIE FOUNDRY COMPANY
ment for straddle milling operations.
Both types are available with carbide teeth ground with corner angle or may be had with inserts ground to 90 degree corner for milling to a shoulder.
The inserted tooth milling cutter consists of carbide-tipped inserted teeth locked into the tool body without ex
traneous parts. These carbide-tipped tool steel inserts are provided with a precision flat back and serrated front face which assures uniform clamping pressure over the entire length of the
round beyond an acceptable point.
Should the periphery be within toler
ance limits, a green signal will flash on at the end of one complete revolution provided the width of gap is also with
in tolerance, or a yellow signal will show if the gap is undersize. The beam of light is interrupted by a mechanical shutter arrangement at the time the gap is passing this point. Another beam
insert. This rigid locking maintains the blade in correct position regardless of cutting pressure.
An adjusting screw mechanism pro
vides for precise adjustment of the in
sert to within 0.003-inch. Replacement inserts are provided with the face of the carbide finish ground and the cutting edges rough ground to reduce main
tenance cost.
Electronic Inspector
To eliminate the human element in checking piston rings, Sheffield Corp., Dayton, O., has designed an electronic piston ring inspector. The instrument automatically inspects the trueness of periphery and the width of gap of a specific size of piston ring.
The piston ring to be checked is in
serted inside a master ring of correct dimensional quality which is placed on the instrument table and rotated by a power driven roller. The gaging func
tions are performed by scanning beams of light directed on photo-electric cells which energize electronic circuits to illuminate three signal lights. As the ring revolves, one beam of light is pro
jected on the periphery of the piston ring. A clearance between it and the master ring will result from any out- of-round condition of the ring, permit
ting part of the light beam to fall on the photo-electric cell. This cell is set to actuate a red rejection signal should an excessive amount of light indicate that piston ring being checked is out-of
roll markers are also available. These devices are standardized as to general design, with shanks to permit mounting in conventional tool holders, but are custom made in detail to meet specific marking requirements.
Federal street, Chicago 5. The units are equipped with the. 10,000 hour Colo- volt lamps which are instantaneous in starting and do not flicker.
Milling Cutters
Special milling cutters of tungsten car
bide have been developed by Tungtip Tools Division of Lowell & Grayson, Monrovia, Calif. Inserted tooth cut
ters are available in face mill and half
side mill styles. The alloy steel body of the face mill is accurately counter
bored in the back of the cutter providing a ground surface for accurate location on the outside of the spindle nose of the milling machine. Half-side mills are provided with a precision ground arbor hole and hub faces for accurate align
cularly in blind holes or close to shoul
ders. As the retraction of the tool point is positive and instantaneous, the operator need only to return the car
riage to its starting point after the re
traction occurs. Resetting the tool point is accomplished by lifting the ball-end lever.
When turning or chasing up to shoul
der, the attachment’s action makes it Fire Extinguisher
Designed to travel down narrow aisles and to reach ordinarily inacces
sible fires, a mobile fire extinguisher, Model FF Chore Boy, is manufactured by Buda Co., Harvey, 111. This gaso
line powered truck has a 1-ton capacity;
79-inch wheel base; dual rear wheels;
deck space of approximately 20 square
feet; and speeds up to 15 miles per hour.
With its own water supply tank and 200 feet of hose, this unit can smother flames before they become of con- flagratory size. While its own water supply is being used, the l'A-inch fire hose can be connected to a hydrant.
Its combination fog or straight-ste:.m nozzle provides for using “fog” for smothering fires with a minimum of water damage. One band control is provided for the steering mechanism.
of light scans the width of gap, the photo-electric cell being set to actuate a yellow signal should gap be under
size. A third beam of light energizes another photo-electric cell set to il
luminate the red rejection signal should width of gap be oversize.
Master piston rings of known dimen
sional quality are used in adjusting the instrument for desired tolerances. The instrument can be adapted to various nominal sizes, gaps of varying width and also for variations on allowable out- of-roundness of the periphery. Trueness of periphery can be determined within a tolerance of 0.001-inch.
Lathe A ttachm ent
A new lathe tool holding attachment which snaps a turning, chasing, or boring tool out of either internal or external lathe cuts at any predetermined point is announced by Foulk Engineering Co., 4208 Airport road, Cincinnati 26. De
signated as Retract-A-Tool, the attach
ment increases the possible speed of turning or chasing operations, parti-Lighting Fixture
A new commercial lighting fixture em
ploying 93-inch fluorescent cold cathode low voltage lamps is now available from General Luminescent Coqr., 638 South
starts near point ot attachment and ments of any electrical application.
and almost all soft or brittle material.
The gun measures 11% inches in length and weighs approximately 1% pounds. The pulling head is notched so diat is snaps on or off tire gun quickly and easily, allowing gun flexibility, quicker head interchange. Pulling heads are interchangeable for any standard blind rivet, aluminum, copper or steel.
Portable A m plifier
Walker-Jamieson Inc., 311 South Western avenue, Chicago 12, are pro
ducing amplifier unit embodying prin
ciples of modern design. This dis
tortionless, humless 30-watt amplifier, which operates on 110 volts, 60 cycle alternating current, is outstanding for unnecessary to neck the work; and be Detachable, reusable hose fittings for use with low pressure hose are available from Aeroquip Corp., Jackson, -Mich.
All parts of die fitting assembly are removable and reusable individually. The fitting may be assembled and disassem sheet metal, plywood, rubber, plastics
H a rd e n in g , Shrink Fitting
The former mediods, manually per
formed, were considerably involved, consisting of (1) placing roller rims in
duction which is sufficient for expansion.
After quenching, surface hardness of the treated rim and flanges is 58 rock- cooled, semicircular inductors (Fig. 3) which are made of rectangular copper
riage returns automatically to the load
ing position where it presses the ex
panded rollers onto the hub as a cen
tral tapered plug at each end of the spindle enters the corresponding bore in the hub to lift the hub to the shrink-
Hall’s endosed-oven design offers substantial savings over open-type equipment. POSITIVE VENTILATION CONTROL equalizes oven tem
peratures, removes objectionable fumes and moisture — PRODUCES UNIFORM, FASTER FINISHING.
M O R E B . T . U . V A L U E i n v e s t e d i n a
[ HEN an industrial heating process reduces production time from hours to minutes and from minutes to seconds—TH A T S NEWS—MONEY-SAVING NEWS!
W hen that same process goes on to offer such additional ad v an tag es as LOW ER E Q U IP M E N T , IN ST A L L A T IO N AND MAINTENANCE COSTS, GREATER ELEXIBILITY AND EASE OF CONTROL, REDUCED SPACE REQUIREMENTS, SAFETY AND CLEAN
LINESS, it just stands to reason that there isn’t a cost-conscious, production- minded man w ho can afford n o tto have a l lthe facts concerning Infra-Red and its use as a production heating tool.
Any one of the above advantages alone is im portant enough to w arrant con
sideration—combined, they represent heating economies and efficiencies which cannot be ignored. Yet, it must be kept in mind, that maximum time- and-money-saving benefits are obtained only b y th e co rrect a p p lica tio n o f in fr a red, either in conjunction with present heating equipment, replacing present heating equipment, o r when engineered to do a specific job o f speeding up production processing.
This basic principle of correct usage governs th ep r o d u c tio n e er edapplication of all C. M. Hall RADI AIR ovens. Radiant heating equipment as engineered for production by H all is proving to be the new answer to many old unsolved problems in the field of heat transfer.
If your work involves preheating, dehydrating, drying or baking CALL ON
HALL for heating assistance. f
"INFRA-RED A T W O R K ” de sc rib es th e m a n y p r a c tic a l application s of th is n e w p ro d u ctio n h e a tin g process. SEND FOR A COPY TO D A Y .
P R O D U C E D T H E S E
RESULTS!
2 0 0 0 PCS. PER H R.
DRYING r u b b e r c e m e n t on p la s t ic rocket rings.
2 4 0 0 PCS. PER H R .
DRYING Army Spec. 3 - 1 7 3 , 3-181 paint on light metal stampings.
2 8 0 0 PC S. PER H R .
DRYING Acid resistant pajnt on heavy metal stampings.
1 8 0 0 PCS. PER HR.
BAKING synthetic enamels metal stampings.
on sheet
Y o u r H o o t i n g D o l l a r s w i l l h a v e
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