Through this arrangement, the focusing lens is adapted to be actuated for focusing by the power drive acting through the focusing gear and since the focusing gear is in slip clutch relation to the shaft manual focusing adjustment of the lens barrel is readily effected at will. Customer Reviews There are no customer reviews yet. Unable to add item to List. During rewind as the roll of film increases in diameter the arms gradually spring open while maintaining coiling pressure on the film due to the spring tension of the arms. Available from these sellers. Push the film through the slot and down the path inside of the projector.
Apparatus for the Continuous Operation of a Film-Strip Projector
A method for studying the effects of mediated associations in the paired- associate learning of children. Slides to be projected are adapted to be fed into the upper end of the slide track and are held frictionally in projection position by means such 'as a generally U-shaped wire spring having load spring arms at each side of the apertures 28 and Further, the magazine is of a size to accommodate an unusually large roll of the strip film 75, on the order of nine to ten feet. A film cartridge for supporting a roll of film in the magazine of a self-threading projector,. Please enter Mobile Number.
Dukane Vintage Movie Projectors and Screens | eBay
Normally the arms are contracted or spaced from' the encompassing wall of the cartridge except in the clip ends of the legs, as shown in FIGURE The opposite bearing arm 98 is rockably supported on a cylindrical bushing carried by the sprocket shaft 87 Within the fixed hub member Slide the full reel of film onto the front reel mount. Words as delightful as they are rare There's My Ride: AmazonGlobal Ship Orders Internationally. Upon movement of the cover 71 toward closed position, the auxiliary film feed sprocket 80 moves into engagement with the outside coil of the film roll and the sprocket teeth engage within the usual sprocket holes in the margins of the film strip. Words as delightful as they are rare.
As is well apparent from FIGURES 1 and 2, suction of cooling air through and past the lens assembly 25 and past the projection lamp 23 from within the fairly commodious chamber 22 will maintain an efiiciently cool condition during operation of the machine. And with so many moving parts and a filmstrip that could reach 9, feet in length, the failure rate was 20 percent. Means are provided for self-threading feeding of the film strip 75 from the magazine and for facilitating rewinding of the film strip into the magazine, and comprising a main feed sprocket 79 and an auxiliary fihn drive roller or feed sprocket Write a customer review. Write a customer review. Assistance in guiding the leading end of the film strip onto the take-up track is afforded by respective flaring lead-in terminal ears on the side retaining flanges and flanking the opposite sides of the camming flange As observed in FIGURE 2, the magazine cover 71 acts in partially closed relation in engagement with the cartridge 74 as a cartridge retainer resisting upward and forward displacement of the cartridge by pressure of the sprocket 80 against the roll of film within the cartridge.