US1227203A - Photographic-plate holder. - Google Patents

Description

A. A. RUTTAN & C. E. HUTCHINGS.

PHOTOGBAPHIC PLATE HOLDER. APPLICATION FILED NGV. 24. 1916.

Patented May 22, 1917.

Ill! llllllllllllll! I I I i l! A i l' l INVENTORS clJ rZesZf/Zagiaflya @Zi2@ Zia) ATTORNEYS UNITED STATES PATENT OFFICE.

ALFRED A. RUTTAN AND CHARLES E. HUTCHINGS, OF ROCHESTER, NEW YORK, ASSIGN- ORS TO EASTMAN KODAK COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented May 22, 191'7.

' Application filed November 24, 1916. Serial No. 133,115.

To all whom it may concern.

Be it known that we, ALFRED A. RUTTAN and CHARLES E. HU'roHINGs, both of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Photographic- Plate Holders; and we do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked thereon.

The present invention relates to photography and more particularly to photographic plate holders, and has for its object to provide a simple, cheap and compact device of this character that may be made from stamped sheet metal parts and assembled quickly with both ease and accuracy. The improvements are directed in part toward providing an improved means for locking the sensitive plate in a definite position in the plate holder, and to these and other ends the invention consists in certain improvements and combinations of parts, all as will be hereinafter more fully described, the novel features being brought out in the claims at the end of the specification.

In the drawings:

Figure 1 is a front elevation of a plate holder constructed in accordance with and illustrating one embodiment of our invention;

Fig. 2 is a side elevation thereof;

Fig. 3 is a longitudinal or vertical central section through the plate holder, taken on the line 33 of Fig. 1, but on an enlarged scale;

Fig. 1 is a transverse or horizontal section also on an enlarged scale, taken substantially on the line 4.-4 of Fig. 1;

Fig. 5 is an enlarged front view of the lower portion of the holder with the front frame removed to show details of the bolt mechanism for holding the photographic plate in place, and

Fig. 6 is a similar view of the bolt mechanism taken in section substantially on the line 66 of Fig. 3.

t Similar reference numerals 1n the severalklg figures indicate the same parts.

and in the present instance 1 indicates the body or back plate of rectangular form, having turned bottom and side flanges 2 and a forwardly turned top flange 3, the edge of which we prefer to roll at 1 to form a pivotal bearing for the straight ends 5 of a small wire bail 6 that is provided for the purpose of withdrawing the plate holder from its seat in the camera body. Disposed against the front of this back plate 1 is an inner plate 7 that may be spot welded to the back plate or otherwise secured in position. It has forwardly extending flanges 8 on all four sides that are spaced quite a distance from the corresponding flanges of the back plate and provide a seat to receive the sensitive plate P, the proportions of which the seat very closely approximates, as appears from Figs. 3 and l. Preferably the top flange 8 is provided with an inwardly oflset portion 9 (Fig. 3) that overhangs the top edge of the plate, while at the bottom the edge of the latter is engaged by catches 10 of a bolt mechanism to be hereinafter described. These devices acting together normally prevent the forward displacement of the sensitive plate, and the said plate is held tightly against them by spring tongues 11 that may be struck up from the material of the inner plate 7.

The forward flanges 8 on the inner plate are further extended laterally outward to produce further flanges 12 at all sides, and the edges of these flanges 12 abut against the marginal flanges 2 and 3 of the back plate 1 to accurately and securely position the inner plate within the body plate. This is an advantage whether or not the inner plate 7 is spot welded to the back plate 1 during assembling, and it further reinforces the flanges of the back plate against inward pressure.

The front of the plate holder is constituted by a front frame 13 having rearwardly and thence inwardly turned flanges 14 that cooperate with the back plate 1 by engaging over the rear side thereof in rabbets 15. There is no flangeat the top of the front flange and it is adapted to be assembled with the back plate by sliding it thereon from the lower end. A nick 16 may be As before indicated, the plate holder of struck in each side flange 14 of the frame our present invention is more particularl designed. for construction. from sheet meta to engage a similar depression in the flanges 2 of the back plate to hold the two parts in a normally locked position against sliding disengagement. An exposure opening 17 provided in the front frame 13 as usual registers with the seat 8 of the inner plate 7 A sensitive plate P arranged in the seat 8 is normally protected from light by a shutter slide 18 that is removably and slidably contained between the back plate 1 and the front frame 13 and forwardly of the inner plate 7. A uide for the edges of this shutter is provided by the flanges 12 of the inner plate 7, acting in conjunction with offset ribs 19 in the front frame 13 at the margin of the exposure opening 17, while light seals 20 and 21 engage the respective faces of the slide near the top where it is inserted. The first of these shields, which is at the rear, is suitably secured upon a depressed portion 22 of the upper flange 12 of the inner plate, as shown in Fig. 3, while the other is secured to the rear face of the upper rail of the front frame 13. The upper edge of the shutter slide, which may also be of thin sheet metal is rolled at 23 to form a pivotal bearing for a bail 21 that is used as a handle in inserting and withdrawing the slide. This bail 24 is preferably wider than the bail. 6 on the body of the plate holder and comes opposite to it, as shown in Fig. 1, so that one does not interfere with the other.

The bolt or locking mechanism comprising the catches 10 for holding the photographic plate P in its seat is confined between the lower flange 12 of the inner plate 7 and the back plate 1, and to support it the said lower flange 12 of the inner plate is formed with rearwardly extending ears or projections 25. The bolt 26 lies above these and carries the catches 10 which project through openings 27 in the adjacent flange portion 8. A spring 28 is coiled about a stud 29 on the bolt 26 and its ends rest upon the ears or projections 25. The bolt normally occupies the dotted line position of Fig. 5, in which a flange 30 at its upper edge is held against the flange 8 by the spring with the catches 10 projecting into plate engaging position within the plate seat, but it may be depressed to release the catches by the operator by the pressure of a finger upon the central portion of the flange 30, which is sufficiently exposed for this purpose through an opening 31 cut into the flanges 8 and 12.

In assembling the device, the bolt 26 may be readily attached to the rear of the inner plate 7 by inserting the catches 10 in the apertures 27 and engaging the ends of the spring 28 over the ears 25, which holds the bolt inposition while the inner plate 7 is being assembled with the back or body plate 1. Thereafter, all that remains to be done is to slide the front frame 13 into position. The plate holder of our invention is, therefore, composed of only five distinct parts or units, which may be separately formed complete and then put together accurately with rapidity and ease, these parts being the back plate 1, inner plates 7, the bolt mechanism 26, the front frame 13 and the shutter slide 18.

e claim as our invention:

1. In a sheet metal plate holder, the com bination with a forwardly flanged back plate, of an inner plate disposed against the back plate and having flanges on all four sides forming a plate seat, said flanges proceeding forwardly and thence laterally to abut at their edges the flanges of the back plate, and a front cover frame cooperating with the back plate.

2. In a sheet metal plate holder, the combination with a forwardly flanged back plate, of an inner plate disposed against the back plate and having flanges forming a plate seat, said flanges proceeding forwardly and thence laterally to abut at their edges the flanges of the back plate, and a front cover frame cooperating with the back plate and having rearwardly and thence inwardly turned flanges slidably interlocking with the latter.

3. In a sheet metal plate holder, the combination with a forwardly flanged back plate, of an inner plate disposed against the back plate and forming a plate seat, and a front cover frame eoiiperating with the back plate and having rearwardly and thence inwardly turned flanges slidably interlocking with the latter.

4. In a sheet metal plate holder, the combination with a forwardly flanged back plate, of an inner plate disposed against the back plate and having flanges forming a plate seat, said flanges proceeding forwardly and thence laterally to abut at their edges the flanges of the back plate, a light Seal mounted on one of the laterally turned inner plate flanges, a front cover frame cooperating with the back plate and having a light seal on its rear side disposed opposite to that on the inner plate and a shutter slide movable between the light seals and in rear of the front frame to protect the plate seat in the inner plate.

5. In a plate holder, the combination with a back plate, of an inner plate disposed against the back plate and forming a plate seat, one side of which seat is constituted b a flange proceeding forwardly and thence outwardly, and latch mechanism for retaining the edge of the sensitive plate in the seat, said mechanism being confined between the said flange and the back plate.

6. In a plate holder, the combination with a back plate, of an inner plate disposed against the back plate and forming a plate seat, one side of which seat is constituted by a flange proceeding forwardly and thence outwardly, and having an aperture therein, and a spring bolt confined beneath the said flange on the inner plate and having a catch thereon projecting through the flange to cooperate with a sensitive plate in the seat.

7. In a plate holder, the combination with a back plate, of an inner plate disposed against the back plate and forming a plate seat, one side of which seat is constituted by a flange proceeding forwardly and thence outwardly, and having apertures therein, rearward projections on the outwardly extending portions of the flange, a bolt confined beneath the latter and the back plate and having catches thereon projecting through the apertures to cooperate with a sensitive plate in the seat, and a spring on the bolt resting against the rearward projections of the flange.

8. In a plate holder, the combination with a back plate, of an inner plate disposed against the back plate and forming a plate seat, one side of which seat is constituted by a flange proceeding forwardly and thence outwardly and having apertures therein, rearward projections on the outwardly eX- tending portions of the flange, a bolt confined beneath the latter and the back plate and having catches thereon projecting through the apertures to cooperate with a sensitive plate in the seat, and a spring on the bolt resting against the rearward projections of the flange, the latter being recessed between the apertures to permit the bolt to be depressed with the finger when the catches are to be released.

9. In a sheet metal plate holder, the combination with a forwardly flanged back plate and an inner plate disposed against the front face thereof and having forwardly and thence laterally disposed flanges abutting the flanges of the back plate, and providing a seat for the sensitive plate, of a front frame secured to the back plate and a shutter slidable between the frame and the inner plate.

10. In a sheet metal plate holder, the combination with a forwardly flanged back plate and an inner plate disposed against the front face thereof and having forwardly and thence laterally disposed flanges abutting the flanges of the back plate, and providing a seat for the sensitive plate, of a front frame secured to the back plate and having oifset ribs at the margin of its opening, and a shutter slidable between the lateral flanges of the inner plate and the ribs of the front frame.

ALFRED A. RUTTAN. CHARLES E. HUTCHINGS. Witnesses:

LINDA SOHWING, HELEN M. FRASER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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