US492025A - Photographic camera - Google Patents

Description

(No Model.)

A. KLAY. PHOTOGRAPHIG CAMERA.

Patented Feb. 21, 1893.

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UNITED ASTATES PATENT OFFICE.

ANDREW KLAY, OF BLUFFTON, OHIO.

PHOTOG RAPH IC CAM ERA.

SPECIFICATION forming part of Letters Patent No. 492,025, dated February 21, 1893.

Application filed June 29, 1892. Serial ITo. 438,461. (No model.)

To all whom it may concern: this holder is arranged a horizontally movable Be it known that I, ANDREW KLAY, a citizen carrier B made in the form of an openrectanof the United States, residing at Bluffton, in gular frame, and to the lower edge of said car- 55 the county of Allen and State of Ohio, have rier frame is secured a rack or toothed bar C,

5 invented certain new and useful Improvethe teeth of which mesh with the teeth of a ments in Plate-Holders forPhotographic Oampinion D. This pinion is carried by the ineras; and I do hereby declare the following to ner end of a short shaft D', journaled in the be a full, clear, and exact description of the rear wall of the holder A, and by means of 6o invention, such as will enable others skilled this shaft the carrier frame B can be moved 1o in the art to which it appertains to make and laterally within the case A for a purpose to use the same. loe hereinafter described. Guide pieces E are My invention relates to improvements in attached to the inner side of the rear wall or plate holders for photographic cameras; and back of the case A and extend above the rack 6 the object of the invention is to provide a C on opposite sides of the pinion D, to, guide 15 plate holder which can be used in connection the frame and prevent vertical displacement with any ordinary or common form of camera thereof. and which is provided with simple and read- In the inner face of the back of the case A ily operated mechanism for adjusting the is formed a vertical groove or way F, and in 7o plate to bring different portions thereof in this groove or way is fitted a toothed or rack zo line with the lens of the camera whereby a bar G which is rigidly attached to a horizoir series of impressions can be taken on one tal plate-supporting slide G. The slide- G plate without removing the same from the extends or projects beyond oneside of the latholder. crally traveling frameB and the teeth of the 75 With these and other ends in View, the inbar or rack Gr mesh with the teeth on a pin- 2 5 vention consists in the combination with a ion H secured on the inner endof a shaft H. laterally traveling` carrier, of avertically-mov Both the pinions D and H are seated in suitable plate carrying slide arranged within the able sockets or depressions so that the inner laterally-movable carrier and a longitudinalfaces thereof lie iiush with the inner face of 8o ly-movable focusing tube arranged to align the rear or back wall of the case A.

3o With the lens of the camera and normally ad- Within the frame B in the case A is ar-i justed to hold the plate above and out of line ranged a frame I which is provided, in the with the lens. rear face of its solid back, with a groove or My invention further consists in the pecuway I adapted to receive the plate carrying 85 liar construction and arrangement of parts slide G', and said frame I is held on said slide 35 as will be hereinafter fully described and by the frictional contact between a fiat leaf claimed. spring, .l secured in the groove I and the said In the accompanying drawingsz-Figure l slide G. In this frameis supported the usual is a perspective view of my improved plate kit carrying the sensitized plate on which 9o holder; Fig. 2 is a vertical sectional view showthe impressions are to be taken.

4o ing the plate supported by the focusing tube To the rear wall of the case A is rigidly seout of line with the lens; Fig. 3 is a similar cured a hollow guide K, and in this hollow View showing the plate holder in position to guide is arranged a longitudinally-movable receive an impression on the plate to be supfocusing tube L provided at its inner end with 9 5 ported therein, and Fig. t is an elevation a pane of ground glass and at its outer end 45 showing the operating mechanism, the front with an outwardly extending iiange Z, which of the holder being removed. outer end is adapted to be closed by a shutter Like letters of reference denote correspond- M hinged at one edge to said flange and ing parts in the several figures of the drawadapted to be held in its closed position over zoo ings, referring to whichthe outer end of the tube L by means of a 5o A designates the shell or case of the plate suitable catch.

holder, and the front of this casing is remov- The focusing tube L is arranged directly in ably secured in place in any suitable Way. In

line with the lens tube of the camera, and said focusing tube normally projects or extends into the case A below the frame I, the lower edge of which is suitably recessed or cut away to receive said tube and provide the shoulder L that abuts against the side of the focusing tube and said focusing tube is normally projected into the shell A by means of coiled springs N attached to the guide K and the Ilangel on the outer end of said focusing tube. The focusing tube thus serves to normally support the plate holding frame above and out of line with the lens and prevents said fra-me from being moved down and thus expose the plate by turning the wheel R until the tube is withdrawn from the holder. The focusing tube is provided inside with a longitudinal groove m in which is Fitted a guide stud or pin n attached to the fixed guide K, and by this construction the tube is guided as it is moved longitudinally within said hollow guide.

rlhe means for fastening' the shutter M in its closed position over the focusing tube is, prefe ably, a spring O attached at its ends to the lower end of said shutter and projecting slightly beyond the same so as to bear closely against the inner face of the tube L when the shutter is closed.

In one side of the casing A is formed a door P which is in line with the holder, when the latter is in the position shown in Fig. 2, and through which the plate and kit can be introduced into the frame I. This door is locked in its closed position by means of a spring latch p.

On the outer end of the shaft Dis secured an index wheel Q provided with a series of notches and in one of the notches in the edge of said index wheel a spring latch Q is adapted to iit or take as said wheel is revolved to move the carrier frame B laterally within the case A. A similarindex wheel R is attached to the outer end of the shaft Il and serves to indicate the extent of movement and position of the slide G which carries the plate-frame vertically in the case A. On the rear face of the case A are also arranged two graduated dials S, S', the number of graduations corresponding respectively, to the number of notches on the wheels Q, R, and on each of said dials S, S', is arranged a pointer or indicating nger T.

The operation of my improvements is as follows: The shutter at the outer end of the focusing tube is opened and the proper focus obtained in the usual manner. The shutter is then closed and the tube L drawn ont, so that the inner end thereof will lie flush with the inner surface of the back of the shell A, and out of the path of the slide which supports the plate holder. At the same time, the wheel It is turned in the direction indicated by the arrow t and the plate carrying slide G is moved downwardly and a portion of the sensitized plate in the plate holder brought in line with the lens and exposed in the ordinary manner to take an impression on the sensitive plate. After an impression has been taken the operator can, without removing the plate, bring another portion thereof inline with the lens by turning` the wheel Q in the direction indicated by the arrow u, which nieves the frame B laterally, the frame I slidingon the slide bar G. By turning the wheel Q, a series of impressions can be taken in the same horizontal line with the first impression on the sensitive plate until the frame B has moved completely across the holder, when the wheel Q is operated in the reverse direction to bring the plate back into the position it occupied while the first impression was being taken. The wheel R is then operated to lower the slide and plate another notch or step to expose a fresh portion of the plate. By operating the wheel Q another horizontal line of impressions can be taken on the upper part of the sensitive plate, and by repeating the operations above described the plate is covered with impressions. rlhe number of impressions that have been taken can be ascertained by glancing at the indicating-wheels the faces of which bear a series of numbers corresponding to the number of notches formed in the peripheries of said wheels; and as a further guide the dials S, S', are provided. The operator nieves lthe pointer or hand on one of said dials every time an impression is taken and can at a glance ascertain the number of rows of impressions, or the number of impressions in a row, that have been taken.

While the plate is being used, its frame forces the focusing tube L out in the position shown in Fig. l but when said plate is not in use and the mechanism has been returned to its normal position above the line of the leus, the springs N draw the tube inward below the frame I, as shown in Fig. 2. The plate and kit holding the same can be easily removed from the frame I through the door in the side of the casing A.

By the construction herein described I am enabled to easily and rapidly take a number ot' impressions on one plate without removing it from the holder, thus saving the time ordinarily consumed in removing and replacing plates after each impression.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a plate holder for photographic cameras, the combination of a laterally movable carrier frame, a vertically movable bar arranged within said frame, a cross baror slide firmly attached to said vertically movable bar, a plate holding frame provided with a groove which receives said cross bar or slide and a flat leaf spring arranged in said groove and bearing against said slide, substantially as and for the purpose described.

2. In a plate holder for photographic cameras, the combination of aplate holding frame adapted to be adjusted both vertically and laterally and a longitudinally movable focusing tube adapted to support the plate hold- IOO IIO 5 ing frame when it is adjusted out of line therewith, substantialbT as described.

3. In a plate holder for photographie carneras, the combination of a movable frame adapted to support a sensitized plate, a longitudinally movable focusing tube arranged in a suitable guide and adapted to support the plate holding,r frame when it is adjusted out of line therewith, and retraeting springs attached at one end to said focusing tube and at the other end to the guide of the focusing tube, substantially as described.

4i. In a plate holder for photographic cameras, the combination of a movable frame adapted to support a sensitized plate, a lon In testimony whereof I affix my signature in z5 presence of two Witnesses.

ANDREW KLAY. Witnesses:

TIM MCGRIFF, CYRUs B. MANN.

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