US607485A

US607485A - Photographic developing-tray

Info

Publication number: US607485A
Authority: US
Publication date: 1898-07-19
Anticipated expiration: 1915-07-19

Description

No. 607,485. Patented July :9, 9898.

W. H. ROSE.

PHOTOGBAPHIC DEVELOPING TRAY (Applivntiun fih-d Nov. 8. 1S9?) UNITED STATES PATENT OFFICE.

WILLIAM II. ROSE, OF BALTIMORE, MARYLAND.

PHOTOGRAPHIC DEVELOPlNG-TRAY.

SPECIFICATION forming part of Letters Patent No. 607,485, dated July 19,1898. Application filed November 8, 1897. Serial No. 657,830, (No model.)

To (1U whom, it may concern.-

ie it known that I, \VILLIAM II. ROSE, a citizen of the United States, residing in the city of Baltimore, State of Maryland, have invented certain new and useful Improvements in Photographic Trays, of which the following is a specification.

The object of this invention is to produce a tray in which gelatin photographic films may be conveniently immersed. It is well known that these films curl when handled, and for that reason itisdifiicult to keep them properly in the bath, corners or edges tending to spring out.

The invention consists in a tray having a rod projecting from one side thereof horizontally, the under side of the rod being below the upper edge of the tray, said rod extending part way across or along the tray and terminatir g at a distance from the opposite side, so as to permit the films to be slipped under its end. In the preferred form of myinvention the rod is molded integral with the tray; but it may be made separately and attached in some suitable manner. Upon the same principle larger trays may be made having two or more rods; but for illustration a tray having a single rod will suffice.

In the drawings, Figure 1 is a perspective view. Fig. 2 is a vertical longitudinal section, and Fig. 3 is a vertical transverse section.

Referring to the drawings, rectangular tray having a pouring-spout a at A indicates a one corner. Projecting from one of the end walls of the tray at a point about midway of its height is a post B, which, as shown, is integral with the tray. The post is substantially horizontal or parallel with the bottom of the tray, and it extends but part way along 49 the tray, being unsupported at its inner end. In some instances the post may be made separately and attached to the tray, and, if desired, several posts may be used instead of one.

In using myimprovcd trayit is filled nearly to the top with developing fluid. The gelatin film is then seized by opposite. edges and curved and slipped under the free end of the post, after which it maybe released, the post holding the film entirely beneath the surface 50 of the developer, or by holding the ends of y the film it may be moved back and forth through the developing fluid.

Having described my invention, what I desire to secure by Letters Patent is- A photographic tray havinga post attached to one of its walls, said post extending part way across the tray in a direction substantially parallel with the bottom thereof and having a which films may be passed, described. Y

Intestimony whereof I ailix my signature in presence of two witnesses.

WILLIAM II. ROSE.

substantially as \Vitnesses:

HARRY W. Romans,

IlIURRAY Buonr Russ.

free or unsupported end under 6';