US689300A

US689300A - Photographic developing-paper holder.

Info

Publication number: US689300A
Application number: US3618500A
Authority: US
Inventors: Emerson A Gilbert
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-11-12
Filing date: 1900-11-12
Publication date: 1901-12-17
Anticipated expiration: 1918-12-17

Description

No. 689,300. Paten'ted Dec. I7, l90l.

E. A. GILBERT. V PHOTOGRAPHIC DEVELOPING PAPER HOLDER.

(Application filed Nov. 12, 1900.)

(No Model.)

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EMERSON A. GILBERT, OF JAMESTOWN, NEW YORK.

PHOTOGRAPHIC DEVELOPING-PAPER HOLDER.

SPEGIFIGATIO'N forming part of Letters Patent No. 689,300, dated December 1'7, 1901. Application filed November 12, 1900. Serial No. 36 ,185. (No model.)

T all whom it may concern: e

Be it known that I, EMERSON A. GILBERT, a citizen of the United States,residin g at Jamestown, in the county of Chautauqua and State of New York, have invented a new and useful Photographic Developing-Paper Holder, of which the following is a specification.

The quick-developing papers now in use for printing-out purposes and which for many reasons are greatly preferred by photographers demand such strong and poisonous developing solutions that many operators are deterred from using them, the solutions eating the fingers and producing great cracks, which are almost non-healing.

The object of my invention is to provide a simple and convenient holdeiI or dipper for the damp paper, whereby the hands of the operator need not enter the developing solution and upon which the damp paper may lie flat, the low sides of the flat bottom of the dipper allowing the easy dippingin the solution, yet preventing the paper from floating off the holder. It is essential that the developing-surface of the paper shall not be touched bya clasp, a finger, or any object while in the developing solution or while the paperis damp therewith, or finger-marks and stains will be the result. My holder allows the paper to develop clean to the edge, and a finger-hole allows of the easy removal of the paper from the holder without touching the developed or upv per surface. I attain this object by my device as shown in the accompanyingdrawings, in which- Figure 1 is a perspective view of iny holder with the paper in position for developing. Fig. 2 is a plan view of my holder with solid flat bottom, as I usually make it. Fig. 3 is a plan view of holder with perforated bottom. V

10 is the handle of the holder, Which may be made in any strong and suitable manner which shall keep the fingers out of the solution.

11 is the flat bottom of the holder, which I make solid for most purposes, since perforations like 12 or a sieve bottom sometimes form bubbles in the solution and do not do even work.

13 is the side of the flat bottom, which is made low, from a sixteenth to an eighth of an inch serving my purpose, which is to hold the damp paper on. the flat bot-tom and allow it to be easily and quickly dipped in the solution and to hold a thin even body of the solution on the paper, which is then drained off and the holder is dipped in the bath.

I prefer to make finger-hole 15 in the end of the flat bottom opposite the handle, since my holder can then be used with equal ease by a right or left handed operator, and fingerhole 15 should be made sufficiently large for' the finger-tip to be. inserted under the paper to lift the same from the under side, for in using my holder the wet paper is spread on the flat bottom with the developing side up. It is then dipped with a steady hand in the developing solution, allowing the developer to flow evenly over the surface of the paper. After draining it is dipped in the bath and quickly raised by the finger-tip from `the under side, the Wet paper sticking to the finger and the finger not touching the upper surface v of the paper, thus preventing all stains or the rucking of the paper in taking it from the holder.

I make my holder of aluminium, hard rub- .low sides might be cut at different points to aid in draining the paper; but I find that the solution easily drains over the low, sides 13 and through the finger-hole 15 and the closed sides better hold an even body of the solution on the paper.

Some operators prefer to pour the solution over the paper instead of dipping the paper in the solution. This is more easily accomplished with my holder than in a large tray, since it is only necessary to pour the solution evenly over the paper on the flat bottom and then spread it with a gentle motion of the holder, after Which drain off.

I claim as new-- IOO