US661894A - Back for photographic cameras. - Google Patents

Description

Patented Nov. 13, I900.

H. M. REICHENBACH. BACK FOR PHOTOGRAPHIC CAMERAS.

!App1ication filed Feb. 26, 1900.)

(No Model.)

HENRY M. REICHENBACH, OF ROCHESTER, NEW YORK, ASSIGNOR TO THE REICHENBACH, MOREY & ILL COMPANY, OF SAME PLACE.

BACK FOR PHOTOGRAPHIC CAMERAS.

SPECIFICATION forming part of Letters Patent No. 661,891, dated November 13, 1900.

Application filed February 26, 1900 Aerial No. 6,623. (No model.)

to all whom it may concern.- ing the links and springs and the back frame t Be it. known that I, HENRY M. REIOHEN- and the back will be understood from Fig. 8. EACH, a citizen of the United States, residing I is a plate secured to the interior of the at. Rochester, New York, have invented an frame by the screws J and provided with Improved Back forPholographic Cameras, of openings near each end, which receive the which the following is a specification, referstuds F on the pivoted links C. The springs euce being bad to the accompanying draw- H are coiled around the studs, and their ends ings. are bent inward and inserted in holes in the My in venlion relates to improvements in studs. (See K, Fig. 7.) The otherendsoft-he to the construction of the backs of photographic springs are extended inward and bear against cameras whereby the same are adapted to pins or legs L on the plate I. These lugs plate-holders or roll-holders. may be projections struck up from the metal My improvements are fully described and of the bar. The springs H give the links C illustrated in the following specification and a constant tendency to swing inward toward 15 the accompanying drawings, the novel fea the back frame. A similar plate I is secured tures thereof being specified in the claims anby screws J to the back B, and the links C nexed to the said specification. C' are provided with similar studs F and In the accompanying drawings, representsprings H, which bear against lugs L, so that ing my improvements, Figure 1 is a rear elethese linkshaveaconstanttemlency to swing 2:0 valion. Fig. 2 is a top view. Fig. 3 is a top toward the plate I. The links C C are pivview showing an ordinary double plate-holder oted together at their meeting ends by pins or in my improved back. Fig. 4B is a top view screws E. The range of movementof the pivshowing a roll-holder in use in my improved oted links is sufficient to easily accommodate back. Fig. 5 is an end view. Fig. 6 is a plan between the back-frameand the back the ordi- 25 view showing the pivoted links. Fig. 7 is an nary double holder N, Fig. 3, or the thicker elevation of the same. Fig. 8 is a partial verroll-holder P, Fig. 4, of any suitable or pretical section on the line 8 8, Fig. 4. :ferred construction. Eitherofthese holders is A represents the back frame of a photofirmly securedin place forthepurposeof makgraphic camera of any preferred style or coning exposures by the springs on the pivoted o struction and which frame may be a part of links. On theend wheretheholderisinserted the camera ordetachabletherefrom,as shown. the front of the back is beveled to facilitate B represents the back, which is connected the introduction of the holder, as indicated at to the back frame by pivoted links C C, no Q, Fig. 5. If made detachable from the camvided with springs, so that either a plateera, the back-frameis provided withanysuit- 5 holder or a roll-holder may be employed. able projectingribs,grooves, or rabbets filling D is the ground glass, which is attached to corresponding grooves, ribs, or rabbets on the back and used as a focusing-screen. The the permanent back frame of the camera to backisattachedtothe back frame bythelinks exclude light in any ordinary or preferred C C, pivoted together at their inner ends E way. The holders and the back frame are 40 and provided at theirouterends with the procorrespondingly fitted for the same purpose jecting studsFand the spiralsprings H, which in any suitable manner. The double linksC give the links a constant tendency to swing and C give suificient range of adjustment for i or fold toward the back frame and toward the the back, so as to admit the introduction of 1 back, to which they are respectively pivoted. the relatively thick rollholder. The back l 45 As each pair of'links are-pivoted together at may be provided with swinging flaps R R,

their inner ends, the result is that the back is which are opened for focusing and serve to I drawn constantly toward the back frame with dispense with the ordinary dark cloth.

I a pressure sufficient to secure a plate-holder I claimorroll-holderthereon. The method of at-tach- 1. The combination with the rear frame of a camera of the jointed pivoted links and the springs, said springs exerting upon said links a constant tendency to fold together against the rear of the camera, as and for the purposes set forth,

2. The combination with the rear frame of a camera, of the movable back, the jointed pivoted links, the springs and the plates, said springs exerting upon said links a constant tendency to fold together against the rear of the camera, as and for the purposes set forth.

3. The combination with a camera-body; and a movable rear frame; of links jointed loosely together in pairs, the links of each pair being jointed to the can'ierabody and rear movable frame, respectively; and springsact- HENRY M. REICI-IENBAOH.

itnesses:

GEORGE E. SELDEN, GEORGE S. HASTINGS.

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