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.
MOTION PICTURE PROJECTION 555
adjust star as already described, tighten up screws S-125-B, P.l, and replace intermittent casing as per instructions above.
INTERMITTENT SPROCKET LOOSE THOUGH STAR AND CAM ARE LOCKED
Due to excessive pull and undue strain upon the intermittent sprocket, it may be possible at some time during the life of the sprocket to develop a jump on the screen, although the star and cam are perfectly locked without any play being discernible between them. But it will be found that the intermittent sprocket itself is loose upon its shaft, although the pins which hold it to the shaft are apparently tight. This usually can be traced to the fact that the pull exerted upon the sprocket has worn the edges of the taper pin holes away sufficiently to create a slight play between the sprocket and the pins which fasten same upon the shaft. A close examination with an enlarging glass will show that the pin holes in the sprocket are worn egg-shaped, instead of perfectly round. In this case, drive out pins carefully with sprocket rested upon a "V" block, and with a proper-sized taper reamer, ream the hole out very carefully (and only sufficiently to again bring the holes to their rounded proportion), re-drive the pins, which will now set into the holes deeper than formerly due to the fact that the holes are now slightly enlarged; but it will be noted that the pins will set into their holes much more firmly and securely, thus eliminating the end-play. The reamers for the foregoing operation can be obtained through Simplex distributors.