Patent GB-191108822-A (GB)
Title: Improvements in Magazine Cameras.
Inventor: MANDEL MANDEL
IPC: G03B17/34
Filed: 1911-04-08
Granted: 1911-12-30
Abstract: 8822. Mandel, M., and Mandel, L. April 8. M a g a z i n e hand c a m e r a s f or flexible plate or film carriers; cameras, g u nform; cameras fitted with provision for developing.-Relates to a magazine camera with a casing resembling a gun in shape, and fitted with a developing-tank into which the sensitized pieces drop after exposure. The sensitized pieces are carried between the folds of a flexible carrier which is wound or folded upon itself, and are in turn discharged from the folds and brought into the focal plane for exposure. The casing of the camera is in three parts 20, 21, 22, Fig. 1. The flexible band 26, Fig. 16, carrying the films 23 is axially mounted in an inner casing 56. The hand is drawn from the core 27 on to a take-up roll 38 and passes round an idle roller 39 and round the curved hack 55. In each half-turn a sensitized piece is discharged from the core on to a pivoted arm 71, which is raised to present the piece at the focal plane, where there is situated a frame 73. The gearing connecting the roll 38 and the core 27 is adapted so that the roll rotates at a greater surface speed than the core unwinds, in order to keep the unwinding band under continuous tension. For this purpose the roll 38 is frictionally mounted on split shaft into which screws an expander, whereby the friction is regulated. The core 27 and roll 38 are both operated by turning the outer handle 117. Fig. 1, which is keyed to the shaft 120<a>. The shaft 120" carries the wheel 53 which drives the wheel 52 on the shaft to which the core is keyed, and which carries chain or other gearing 51, 52 to rotate the roll 38. Each rotation of the handle 117 feeds a sheet on to the frame 71 and is registered by a click 125, and a similar handle 118 is provided to turn a second shaft 120 which carries a cam disk to operate the levers 76, 75, 74 which turn the shaft 72 carrying the frame 71. A light leaf spring 84, Fig. 16, prevents the sensitized piece from returning with the frame 71, which is returned by the spring 81. The handle 118 is given a half-turn to bring the card into position for exposure, and a further half-turn to return the frame 71. When the sensitized piece is brought into exposure position, it is held against undue lateral motion by the side walls of the housing in the frame 73 and is prevented from sliding through the shoot 25 by an automatic support 83 arranged to be projected across the shoot before the frame 71 starts to rise, and to be withdrawn just before the holder returns to its initial position after exposure. The support 83 extends from a bar 85 which is mounted on a locking bar 87. This locking bar coacts between the shafts 120<a>, 120 of the core 27 and frame 71 respectively in such a manner that when the one shaft is unlocked the other is locked. On turning the handle 117 to position a sensitized piece on the frame 71, the bar 87 is moved to the right, thereby moving the support 83 into position and unlocking the shaft 120 from the locking pin 100. This movement of the bar brings the bifurcated end 96 of the bar over the flattened faces on the stud shaft 54 and locks the film core 37 against rotation. On turning the handle 118, the locking bar is moved to the left, thereby re-locking the frame 71 and freeing the stub-shaft 54. The locking bar is moved by pins on the respective shafts engaging shaped projections 92, 94 on the locking bar. This being insufficient to move the bar to the full limit of its throw, the bar is formed with a double incline which engages a spring-pressed roller in such a manner that, when the bar has been moved as far as it can by turning the handles 117, 118, the apex of the incline will be carried beyond the roller, whereupon the pressure on the other face of the incline will complete the throw of the bar. The magazine and its associated parts is removably held in the end of the housing 56 by a clamp bar 63 pivoted at its lower ends to the yoke 60 and fastened at its upper end by a pivoted clasp 65. The housing 56 is fitted and retained in the section 21 of the case by a ring 112 which screws on to a flange 111 within which the casing 56 fits. The section 21 can be rotated to take vertical pictures by a wheel 127 which engages a slot 128 in the bar 63 and extends through the end cover 22. The wheel contains a mark to indicate when the sensitized piece is vertical or horizontal.