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.
754 HANDBOOK OF PROJECTION FOR
hold the bearing at either end of shaft, which releases both bearings and shaft.
INSTRUCTION NO. 35.— ADJUSTING, SETTING OR TIMING REVOLVING SHUTTER. First carefully study general Instruction No. 22 until you thoroughly understand the principles involved. In the Motiograph DeLuxe Model a universal mount is used in order to enable the removal and replacement of the revolving shutter without readjustment, or re-setting. The small hexagon nut on front end of hexagon collar is used to clamp the disc carrying pin CS-64, lower right corner, P. 3, in position to secure rough adjustment of shutter, the finer adjustment being secured by turning knob CS-180, P. 4, at top left-hand corner of mechanism. The knurled knob at top of rod CS-181, P. 3, is held to rod by a set screw which engages a flat spot on rod, and collar CS-183, P. 3, is held to shaft by set screw, which also engages with flat spot on shaft. End-shake, or movement of rod is prevented by use of adjusting nut CS-184, P. 3, and check nut CS-18S, P. 3.
INSTRUCTION NO. 36.— TO ATTACH REVOLVING SHUTTER TO ITS SHAFT, dowel pin CS-64, P. 3, must enter hole in collar of shutter, and the shutter be clamped in place by screw CS-172, P. 3, in hub of shutter. The revolving shutter blade is carried by a sort of cradle, the hub of which is CS-171, P. 3. This is an excellent arrangement in that it permits of the blade being placed right up against the front plate of the mechanism — as close to lens as it is possible to get it — in the case of very short focal length projection lens, whereas when a very long E. F. projection lens is used the shutter may be reversed and actually made to be some distance beyond the end of the shutter shaft. Under some conditions this is a very valuable feature, in that it permits of a virtual lengthening of the shutter shaft.
INSTRUCTION NO. 37.— TO RELEASE SHUTTER ADJUSTING SHAFT CS-181, P. 3, from shutter supporting unit, remove screw from opposite end of stud CS-65, P. 3, and to release shaft CS-181, P. 3, from frame of mechanism casing loosen screw which locks knob CS-180, P. 4, to shaft, having first released shaft from shutter supporting unit.
INSTRUCTION NO. 38.— TO REMOVE SLIDING
MECHANISM FRAME, which is the vertical sliding frame which carries most of the gearing and other parts, first follow Instruction No. 17, then take off the front plate by re