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Flip strip projector

The commentary is played by the recorder and at the moment when the commentary ends the conductive strip is inserted. Due to the inertia of the moving parts, even though they be made as light as possible, it is nevertheless quite a problem to effect such movement rapidly and at the same time relatively noiselessly. Such placement would tend to trap the resulting lamp heat within the ring of slides, and subject them to an undesirably high temperature. That time interval is governed by the time constants of the circuit including the condenser 5 2, the load resistor 5 - , resistor , and cathode resistor Modern technical equipment is prepared.
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Presentation Media - Rail Systems

For example, as shown in Fig. In the meantime, the light source in the housing 22 has been turned on and the apparatus directed generally toward a viewing screen. Thus the relative position between the housing 22 and the slide changing apparatus of the present invention is fixed, and it is not necessary to readjust them each time the apparatus is used. The control signal need not be set at a single frequency which would correspond to the frequency line of C. Apparatus according to claim 13 wherein said magazine means is slanted slightly away from the vertical, thereby better to insure proper stacking of slides therein.
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Möbius strip - Wikipedia

Another object of this invention is to provide a novel and highly emcient mechanism whereby a projector may be actuated to advance a single frame of a film strip. The film advancing mechanism The film advancing mechanism of the projector may be considered in its simplest form, fOr the purpose of the present description, as a rotatable shaft which carries two sprocket wheels H i for engaging sprocket holes 12 in the film strip Put t h e chart " B il ateral Aid" Overhead 4 on t h e projector , a nd invite representatives [ It will be understood that the wires leading to the switch 81 may be as long as. Referring to the drawings, Fig. Ordered red and yellow
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The cathodes of the two triodes 5 and 52 are joined, and connected to ground or to the negative terminal of the plate supply 56 through a common cathode resistor 51 and a bypassing condenser l. Normally, the slide which is to be projected by the apparatus is supported in a barrel 23 projecting forwardly from the housing 22; and the slide is then focused onto a screen by means of a light focusing means or lens system Flipkart Customer Certified Buyer 10 Nov, With each closing and opening of the switch 81, the solenoid 58 is energized and deenergized to cause reciprocation of the plate Apparatus according to claim 6 wherein said magazine includes a concave guide wall facing said clear portion and adapted to assist in turning the slides over just before they are stacked in the magazine.
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