Motion picture handbook; a guide for managers and operators of motion picture theatres ([c1916])

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498 MOTION PICTURE HANDBOOK moved merely by taking out its hinge screw, first, however, loosening screws 711, P. 2, holding flat spring 658. The distance of the roller which this bracket carries from the sprocket (see General Instruction No. 12) is determined by the position of screw 724, P. 2. Spring 658, P. 2, should supply sufficient tension to this bracket to hold it firmly in place when it is 602 6OI Plate 3, Figure 243. closed down, but this may be overdone. The tension should not be sufficient to cause, the sprocket teeth to punch through, or even seriously indent the film when it climbs the sprocket. This adjustment calls for a little judgment and common sense. If it is too loose the loop setter will work overtime. If it is too tight damage may and probably will be done to the film. No. 21. To Remove Fly Wheel 672, P. 3, remove screw