Exhibitors Herald (1927)

Power’s Projectors Are Now Equipped With The New Power’s Film Gate and Lower Fire Shield Explanation of Parts A — Lateral guide roller — This guide roller is split and the assembly so constructed as to maintain at all times lateral stability of the film and consequently the projected picture. B — Upper and lower film pads — These pads are of hardened steel, ground, highly polished and beveled, and so held under tension as to assure a perfectly square contact with the film at all times. They are maintained under sufficient tension to insure steady projection and no adjustment is necessary. C — Film plate pad to which is attached the upper and lower film pads together with the central film pad and their respective tension springs. D — Gate lock screw — This stud is fastened rigidly to the mechanism frame having no adjustment and affords a positive lock for the gate assembly. E — Fire shutter lift lever — A newly designed link between the fire shutter governor and the fire shutter proper. The new design insures positive raising and lowering of the shutter at approximately 50 film feet per minute. F — Central film pads — These pads are maintained under lighter pressure than B and their sole function is to keep the film in focus over the aperature. These pads, like the upper and lower film pads, are of hardened steel, ground and highly polished. G — Rear baffle plate — This plate is rigidly attached to the front or support plate and carries the lateral guide roller, upper film shield, gate latch, insulated trip lever, gate stop, and film pad plate assembly. This plate is interposed between the front plate and the film pad plate in such a manner as to insure at all times a constant flow of cool air rising between the front plate and the rear plate and also between the rear plate and the film pad plate. By this means it is possible to keep the film pad tension springs at a temperature considerably below the point at which they would lose then temper and at the same time keep the rear plate and the entire assembly at a much lower temperature than the front or support plate. H — Air space between G and J. I — Air space between G and C. J — Front plate (radiating and insulating heat shield) — This plate is scientifically designed to eliminate warpage under severe heat and is a support for the entire gate structure. K — Upper heat insulating cap — This cap is made of bakelite and is entirely insulated from the metal front plate, eliminating the possibility of the projectionist burning his fingers. L — Insulated gate latch lever — The gate latch lever is positive in action and is insulated with a bakelite trip, thereby protecting the projectionist from the heat when opening the gate. M — Light shield to protect the projectionist’s eyes from the intense spot on the aperature. This shield may be readily attached and detached. It is not fastened in any way. N — Fire shutter pivot pin — This part entirely new in design lifts or lowers the fire shutter perfectly freely at all times, there being no danger of its becoming bound in the bearings. O — Lower heat insulating cap — This cap also is of bakelite and entirely insulated from the metal front plate. It is an assurance against discomfort to the projectionist and the film coming in contact with anjf hot metal part. P — ‘Lower loop protector — This newly designed assembly is selflocking and is so constructed that it opens downward rather than laterally as in the former design. The latch is so placed that it falls readily over the index finger of the projectionist when his thumb and index finger are engaged with the knob to open the shield. The shield proper is maintained under slight tension so that it may be operated at will but without the slightest noise. POWER’S DIVISION INTERNATIONAL PROJECTOR CORE 90 GOLD ST. NEW YORK