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562 MOTION PICTURE HANDBOOK
develop a tendency to work up or down while the motor is running, tighten the screw in this clamp bushing sufficiently to hold the rod in place and prevent the knob from moving through vibration of parts.
No. 61. — On the operating side of the machine at the bottom of the magazine is a horizontal lever, the purpose of which is to raise the discwheel end of part 621P, P. 4, thus releasing belt 659P, P. 4, which operates as follows: When ready to start the show raise the lever up and start your motor by throwing in the handle of switch 329P, P. 4, next set speed regulating knob 512P, P. 4, in running position, if it is not already there. Now when you are ready to project the picture drop the lever slowly down with one hand and as the fire shutter raises raise the dowser with the other hand.
No. 62.— Belt 334P, P. 4, operates the take-up. The take-up gear 342P, P. 4, is on take-up spindle, 348P, P. 4, which carries the lower reel. This spindle is supported by bar 346P, P. 4, which is hinged to the machine casting on the opposite side, just back of the figures 342P, P. 4. The front end of this lever, including the take-up spindle, rests in and is supported by belt 334P, P. 4. Th6 result is that when the reel in the take-up magazine is empty there is very little friction on this belt, but as the film is wound on the reel the weight increases, and thus an automatically regular takeup tension is supplied in excellent form.
No. 63. — Any angle may be given the machine as a whole by loosening the clamps which secure the legs and raising or lowering the machine to secure the desired setting.
No. 64. — The condenser is supported in a metal casing which forms a heat reservoir and will go far toward reducing lens breakage. The casing is so designed that it may be adjusted to suit various conditions. It is advisable that the lens be kept about one-sixteenth of an inch apart.
No. 65. — On the top of the carbon clamp of your lamp, under the clamping screw, is a hole which should be kept filled with powdered graphite at all times. Do this and you will have no trouble with your carbon clamp screws working hard.
No. 66. — The cups on the motor should be kept filled with a good grade of medium oil.