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Huff's Negative Carbon Alignment
for the
PEERLESS MAGNARC LAMP
• Huff's Negative Carbon Alignment installed on your Magnarc lamp will cut carbon consumption.
• To operate — simply use the two adjusting screws to raise or lower. or move the carbons sideways.
• Pays for itself with savings and results.
EASY TO INSTALL EASY TO OPERATE
15 each
See your local supply dealer or write direct to
HUFF'S.
659 W. Jefferson
INC.
Los Angeles, Calif.
SIGNO-MAIIKEII
The accurate, neat method of placing changeover signals on film is available at your dealer, or write direct to
CLINT PHARE PRODUCTS
282 E. 214 ST. . EUCLID 19. OHIO
>eaJon J
The Wenzel 'Bull Dog'
By FRED WENZEL Wenzel Manufacturing Co., Chicago
THE Bull Dog (patent applied for) is in' tended primarily to eliminate key breakage on all types of shafts for winding film. It was also designed for use in lower magazines, to distribute more evenly the pull strain exerted by the heavy 2000-foot reels, which, at present, are driven by a relatively small shaft key.
The accompanying description and drawing convey the detail of this device:
AR-15-A is the main casting. The edges of this casting are chamfered to avoid cutting or scratching the projectionist's hands.
AR-15-B is the reel shaft key used only in conjunction with small reels, such as the 1000-foot exchange reel, which do not fit the studs [C]. The key seats into the slotted shaft and the reel studs are removed. Fig. 1 shows how the entire length of the key is seated into the slotted shaft to increase the driving power of the key and lessen key breakage.
AR-15-C is the reel stud (two supplied). These studs are screwed into [A] at three different pairs of threaded holes: the distances of each pair being (1) 1 7/16; (2) 1 11/16; (3) 1 15/16 from the center of the shaft. The choice of the holes depends on the reel being used. When the studs are used the key [B] is flipped back out of the slot [H], as seen in Fig. 2.
AR-15-D is the special shaft used with the Bull Dog. It is special because of the slot [H] and can be supplied for practically all types of heavy-duty hand rewinders, automatic rewinders and magazines.
AR-15-E is the set screw which holds the Bull Dog firmly to the shaft. The key helps the set screw, because it always rests in the slot [H], no matter what the position.
AR-15-F is the key holding the screw allowing the key to swing freely. When
AFM5-B
^hroiidcLu Ljreetinac
from
District No. 15 I. A. T. S. E.
J K^jreelinai Projectionists Local No. 407
SAN ANTONIO, TEXAS
Tfom
Local No. 224 Washington, D. C. A.T.S.E. & M.P.M.O.
of the
U. S. and Canada
AW5A (5"DIA)
FIG -2
ordering the Bull Dog the model number or maker of the shaft must be given, together with its diameter.
STRONG
COPPER OXIDE AND TUBE TYPE
RECTIFIERS
The modern means of converting A.C. to D.C. as an ideal power supply for projection arc lamps.
Low original, operating and maintenance costs. Quiet operation.
Distributed through leading independent theatre supply dealers.
THE STRONG ELECTRIC CORP.
87 City Park Ave., Toledo 1, Ohio
The World's Largest Manufacturer of
Projection Arc Lamps
Greetings
and
Best Wishes
Local No. 171, I.A.T.S.E.
Pittsburgh, Penna.
Holiday Greetings
Projectionists Local No. 314 SCHENECTADY, N. Y.
INTERNATIONAL PROJECTIONIST • December 1946