Patent GB-294514-A (GB)
Title: Automatic photographic machine
IPC: G03B17/53
Filed: 1927-04-25
Abstract: 294,514. Olsen, R. E. April 25, 1927. Automaticand coin-freed apparatus magazine cameras with sliding change in plane of plate and with connected action betweew shutter and changing mechanism.-A coin-actuated photographic machine in which the insertion of a coin by the sitter actuates mechanism to take, develop, wash and deliver a photograph, comprises a motor-driven cam plate which carries out through linkage, during one complete revolution, the various operations in the proper sequence. Fig. 1 shows the cabinet for the sitter which comprises an adjustable stool 15, a casing 17, the upper part 18 of which contains the photographic machine, the lower part 19 serving as a waste fluid receptacle. A motor 31, Fig. 2, is secured in the casing 18 and is geared to drive a cam plate 41 which is also formed with a cam groove 45. A coin C inserted through a. slot in the casing passes to the position shown in Fig. 5 to make electrical connection between a contact 54, Fig. 6, carrying one motor lead 55, and an arm 56 which contacts with arms 64 on a guide 63 which carries the other motor lead. The coin C thus completes the motor circuit to rotate the plate 41. On the face of the plate 41 is mounted a cam 70 adapted to engage a lip 74 on a bellcrank 72. When the plate 41 turns, the cam 70 rocks the bell-crank 72 to depress the lever end 76 against spring control. When the lip 74 clears the cam 70, the end 76 of the lever is held raised by the spring for a complete revolution of the plate 41 until the cam 70 re-engages the lip 74. A circuit closer 79, normally disposed below the members 54, 56, is carried from the lever end 76, and when the lever end 76 rises, the flaring edges 80 of the closer 79 are raised to fit notches 81 in the members 54, 56. The closer 79 maintains the electric motor circuit, and, by pressing the member 56 outwards, releases the coin C to pass to the coin box. As shown in Fig. 4, sensitive plates P are carried in a receptacle 85. Mounted between rails 87 secured to a slideway under the receptacle 85 is a slide 100 notched to engage the lowest plate in the receptacle 85 so as to advance it beneath a lens tube 102. An arm on the slide 100 is linked to a bell crank 111, one arm 113 of which is provided with a cam roller 114 engaging the groove 45. When the cam 70 engages the lip 74, the slide 100 is so advanced that a plate is beneath the tube 102. As soon as exposure is made, the cam rocks the lever 111 to move the slide 100 and advance the plate to the developing position. The receptacle 85 has a telescoping closure cap 89 and a sliding light-tight closure 91. To re-charge the receptacle 85, the closure 91 is operated, the cap 89 removed, filled with plates and replaced, the closure 91 being then moved to the open, position to allow the plates to fall into the receptacle 85. The receptacle 85 is then again closed by the member 91. The receptacle 85 is formed with a ruby transparent panel 92 for viewing the plates. While, the plate is developed, the cam reverses the slide 100 to pass it to the position shown in Fig. 4 so that another plate drops from the receptacle 85 on the slideway. The slide 100 then advances the plate beneath the lens tube 102. Light is directed into the tube. 102 through a prism 112, and the shutter mechanism 120 is actuated by a lever 121 from a disc 122 on the member 41. The disc 122 is formed with cam members 124 which have inclined portions for rocking the lever 121, and flat-topped portions to hold the lever 121 in the rocked position. The length of the flat portions varies on the different members 124 so that, by turning the disc 122, the time of exposure may be varied. A lamp to illuminate the sitter, is carried in a case 140 and is lit up by the closing of an electric circuit by a snap switch 136 which is operated from a cam 43 on the disc 41 engaged by a roller 130 on an arm 131 which is connected to a trip rod 134. The developing fluid is fed from a tank 146 through tubing 147 to a developing chamber 150, the flow being controlled by a tube compressor 180 actuated through a bell-crank 181 from the plate 41. Water for washing the plate is supplied to the chamber 150 from a tank 186, the flow being controlled by a tube compressor 190 similarly actuated. The picture is delivered through an offset portion of the chamber 150 on to a shelf, the plate 41 rocking a lever 172 atfached to a boss 170 on a sliding part 169 of the chamber 150 after the picture is developed and washed. Waste liquid passes through the pipe 161.