We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
MOTIOGRAPH AA PROJECTOR
(Continued from page 15) holes in the sprocket
body
but smullt sleeve.
Lateral and angular positioning of the sprocket on the shaft is provided, however, by an aligning stud which engages an accurately machined slot in the sprocket body. The tapered screw cannot be backed out far enough to drop the balls from their sockets because of the presence of the tubular threaded insert in the star shaft which mounts the locking collar.
Fast Removal, Replacement
For very rapid removal of the sprocket for inspection, cleaning, reversal or replacement, it is merely necessary to back out the tapered screw, remove the locking collar, take off the outboard bearing by removing the single fastening screw which holds it on its locating dowels, release the stripper anchoring set screw, at the bottom of the same hole, and slip out the stripper to release the sprocket. The whole operation can be performed in less than two minutes, and since there is no need for removing the movement from the projector, there is no chance for disturbing the shutter timing.
In the tension shoe assembly, the shoe proper is fabricated from tough alloy steel and thoroughly hardened, ground and polished. It is tensioned by a single center spring and is thus self-aligning and self-equalizing with respect to pressure on its two runners. The shoe is held to its spring-tensioned support plunger by guide bars.
The assembly is opened by pushing the finger grips away from the sprocket until the latch ball is pushed into the plunger groove by the spring. It is released and automatically closes by pressing the release button, which pushes the latch ball out of the groove and allows the plunger to return to its closed position.
The inner shifting frame which mounts the intermittent movement is moved vertically in V-rails for picture framing. The movement is held in place by the clamps tensioned by springs so that they will stay in their open positions. The adjustable stop, bearing against the movement rear-bearing bracket, permits the movement to be rotated in its seat to produce the proper mesh between its drive pinion and the wide pinion which is keyed to the vertical shaft.
The wide pinion is mounted on the moveable bracket which in turn is supported by the threaded shaft. The flexible shaft from the shutter timing control via small right-angle gears turns the threaded shaft to move the wide pinion upward or downward and thus vary the
*3 e ad o n 5 Lj re e ti
nad
9
LOCAL 160, I. A. T. S. E. CLEVELAND, OHIO
CLAYTON BALL-BEARING
EVEN TENSION TAKE-UPS
For all projectors and sound equipments
All take-ups wind film on 2, 4 and 5 inch hub reels. Silent Chain Drives
THE CLAYTON REWINDER
For perfect rewinding on 2000-foot reels.
CLAYTON PRODUCTS CO.
31-45 Tibbetr Avenue New York 63, N. Y.
INTERNATIONAL PROJECTIONIST
December 1946
31