Patent GB-135169-A (GB)
IPC: G03B33/00
Abstract: 135,169. Procoudine-Gorsky, S. de. Nov. 9, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Kinematograph apparatus.-A camera for taking three - colour negatives or a series of such, and in which the exposure can be adjusted, contains a rotating disk 50, Figs. 1 and 2, in front or the lens and fitted with three coloured taking- filters 51. The disk has a removable part 53 by which access can be had to the lens, and is formed with a camshaped edge 52 which oscillates an arm 54 thereby oscillating a pivoted frame 37 through connexions 56, 58, 59. The frame carries a pair of resiliently-mounted clawfeed members 39 connected by a cross head or rod 40 and which engage the perforations in the film and feed it through the guides 15, 16. The frame 37 and connected parts are returned after each forward feed movement by a spring 61. The motive power is supplied by a spring 45 which is tensioned on turning a handle 102. This handle may be locked against turning by a spring bolt 66. The spring 45 is tensioned through gearing 63, and from the tensioned spring motion is given to the disk 50 through gearing 47, 48 and to the sprocket roller 18 feeding the film 14 through gearing 48, 23, 22, 21. Each rotation of the handle 102 tensions the spring sufficiently to .give a complete rotation to the disk 50 and to supply a loop of film and take three pictures. The tighter the spring is wound the more rapid are tne movements and the exposures, and a speed indicator is provided comprising a graduated outer glass front 67, Figs. 3 and 5, and two movable disks 72, 73 and a pointer 70 behind on a shaft 76. The front frame 103 with the glass 67 is turned so that the pointer 70 points to zero. The rear disk 73 is graduated from 0 to 8 and is rigidly mounted together with the pointer 70 on the sleeve 74. The disk 72 is freely mounted on the sleeve 74 and is directly rotated by a pinion. 77 when the handle 102 is turned. The rear disk 73 and pointer are indirectly rotated from the spring 45 through gearing 79, 80, 82. The number seen through the aperture 68 in the front disk 72 thus indicates the number of turns given to the handle 102 and cunsequently the potential speed for exposure. The relative rotation of the disks 72, 73 is limited by stops 83, 84 on these disks. The disk 50 is held from movement by a pin 87 engaging a spring catch 86 and is released by turning the outside handle 91 and with it the shaft 90 and forked arm 89. To prevent any shock or jar to the disk 50 and other parts at the end of the three exposures, a dash-pot 92 with a spring-returned piston 95 is in the path of the pin 87. The dash-pot is pivoted at 93 and when turned by the outer handle 101 on the shaft 100, the pin 87 escapes past the end of the piston 95 and is held by the catch 86. The piston is returned into the path of the pin 87 by the spring 98. To prevent both piston and catch 86 from being moved out of thee path of the pin 87, an interlocking bar 104 is provided on the piston and operates in conjunction with the forked arm 89. The case of the camera has view-finders 2, 3 and the back 6, shaped as shown, is hinged at 7 and has U-shaped edges 9 which engage the sides 1 of the camera. The lens diaphragm is adjusted from a knob 27 in the front of the camera through gearing 26, 25, 24. A movable shutter disk is mounted on the front of the camera opposite the lens aperture. The Specification as open to inspection under Sect. 91 (3) (a) comprises also alternate means for intermittingly moving the film, including a grip feed mechanism and mechanisms with eccentric rollers. This subject-matter does not appear in the Specification as accepted.