Patent GB-190503583-A (GB)
Title: Improvements relating to Magazine Photographic Cameras
Inventor: WILKES GEORGE
Filed: 1905-02-21
Granted: 1905-11-16
Abstract: 3583. Wilkes, G., and Leeson, A. J. Feb. 21. Change-boxes ; cameras.-A magazine camera is fitted with a daylight-loading apparatus consisting of a detachable box to contain the plates or films in sheaths attached to a flexible band, and mechanism for opening the box, releasing the plates one by one, returning them to the box, and closing it ready for removal from the camera. Figs. 3 and 4 are vertical and horizontal sections, respectively of the camera. The plates or films are carried in sheaths constructed of metal or paper or fabric with metal clips. Fig. 8a shows a metal sheath with two lips b<1> and a shoulder b<2> to retain the plate. On the fourth side, hinge-barrels b<5>, b<4> turned in reverse directions serve to connect the sheaths to a flexible band b<7> fixed to the magazine a, which consists of a rectangular box with a hinged lid a<1>. The side a<5> of the lid opposite the hinge enters the space between the two plates a<7>, a<8>, forming one side of the box, which is then held closed by the catch a<9> entering a slot in the plate a<8>. The bottom of the box is open to admit the spring f, which feed. forward the plates and is attached to a plate d fixed to the detachable back of the camera. The magazine is rendered light-tight by a collapsible bellows in the bottom. When the magazine is loaded and just before its introduction into the camera, the lid is disengaged from the plate a<8> and slipped outside the same, being sufficiently retained by friction. The magazine is placed in position in the camera back on a shelf, and is spring-held by the catch d<4>. The camera back is then replaced. In order to open the lid of the box, the shaft e, which is fitted with a handle outside the camera, is turned, and causes the spring arms e<5> on the crank e<2> to grip the lid of the box, which is moved to the position shown in Figs. 3 and 4 by replacing the shaft e. The front plate is held in focussed position by the pins g<1>, g<2>. In order to release the exposed plates, the pins g', g<2> are turned into the plane of the sides of the box by sliding the rod i<2>, which action also moves the pins h<1>, h<2> to hold the remaining plates. The rod i<2> directly engages the lever g<5>, and through the spring detent m<1> engages the lever h<5>. Normally, the levers g<5>, h<5> move together and oscillate the bars g<6>, h<6>, Fig. 7, together. These bars are jointed to the pins g<1>, g<2>, h<1>, h<2>, and move them so that before the pins g<1>, g<2> are clear of the first sheath the remainder are held by the pins h<1>, h<2>. The return of the rod i<2> allows the spring f to push forward the next plate, the exposed one falling into the lid of the magazine. Exposed plates may be returned to the magazine for removal by moving both sets of pins g<1>, g<2>, h<1>, h<2> from the front of the box and rotating the shaft e to close the box. The part a<5> passes between the parts a7, a<8>, and is held by the catch a<9>. In order to remove the pins g<1> g<2>, the detent m<1> is pushed clear of the lever h<5> by means of the rod m<3>. This allows the lever g<5> to move alone and move the pins g<1>, g<2>, without the pins h<1>, h<2> ; this is necessary also before the introduction or removal of the loaded magazine.