US622141A - Photographic developing apparatus - Google Patents

Description

No. 622,|4l. Patented Mar. 28, I899. A. GOUDER.

PHOTOGRAPHIC DEVELOPING APPARATUS.-

(Application fileq July '8, 1898.) (N o M o d e l TEL /N VENTOH A TTOHNEYS.

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UNITED STATES I PATEN T OFFICE.

ALBERT GOODER, OF BROOKVILLE, PENNSYLVANIA.

PHOTOGRAPHIC DEVELOPING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 622,141, dated March 28, 1899.

Application filed July 8, 1898. Serial No. 685,398. (No model.)

will produce better negatives than the ordinary method of developing films.

Another object of the invention is to provide a film-developer by the use of which all scratching of the films will be prevented and whereby itwill not be necessary to cut the films until the negatives are bright. Furthermore, no complicated machinery is employed or any mechanism adapted to get out of order and that cannot be adjusted and manipulated by any person of ordinary intelligence.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both figures.

Figure 1 is a vertical section taken substantially on the line 1 1 of Fig. 2; and Fig. 2 is a front elevation of the device, a portion of the tray being in section.

The base A is a tray intended to hold the developing solution and is shown as of rectangular shape, although other shapes may be employed. In each side of the tray opposing slots and 11 are produced, the inner ends of the slots being made to face one another, and the slots are curved or inclined at the upper edges of the tray, their lower portions being more or less horizontal. The slots 10 and 11 may be made to extend through the sides of the tray and are preferably formed in the inner faces only of said sides. Arms 12 are pivotally attached to the tray at each of its sides, ordinarily through the medium of suitable bolts 13 and thumb nuts 1 1, and the arms 12 may be considered as a portion of tray is avoided.

the lower frame B. The arms 12 serve in a great measure to support a second frame 0, the side pieces 15 whereof are pivoted upon a rod 16, which is passed through the upper ends of the said arms 12 and the sides 15 of the upper frame, and between the sides 15 of the upper frame a spacing-sleeve 17 is located, the spacing-sleeve and rod constituting a portion of the bottom frame B. The rod 10 is usually provided with a head at one end and a thumb-screw 18 at the opposite end.

The forward end of the upper frame 0 is closed by a cross-bar 19, and near the said cross-bar a roller 20 is journaled, one trunnion whereof is provided with a crank-handle 21. The trunnions of the roller 20 are jour naled usually in slot-bearings 22 in the side bars or side pieces 15 of the upper frame, as shown especially in Fig. 1.

In the slots 10 and 11 rollers 23 and 2st are journaled, and owing to the peculiar formation of the slots 10 and 11 the rollers in operation will work toward each other, and all tendency of the rollers to work out from the The film 25 to be developed is carried by the rollers 23 and 2-1 and the upper roller 20. The film 25 is connected at its ends in any suitable or approved manner to form an end less band or belt, and this endless band or belt is carried over the upper roller 20 and under the lower or tray rollers 23 and 24,which serve as guides, and the said guide-rollers are preferably so spaced as to bring each nega tive consecutively and completely into the developer contained in the tray.

It will thus be observed that a long roll of film negatives may be expeditiously, conveniently, and evenly developed, and the frame is so made that it can beadjusted to accom modate a belt of films of any desired length,- since the lower frame B may be carried forward or rearward and the upper frame 0 adjusted upward or downward, as occasion may demand.

It is evident that the two frames may be folded together and the tray folded within the frames, thus making a flat and neat package that will occupy but little room.

Having thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. A device for developing films consisting of a tray, frames adjustable relative to each other and relative to the tray, the frames being supported from the tray, and rollers located within the tray and upon the frame, the said rollers being adapted as supports for the film to be developed, as set forth.

2. A device for developing films, consisting of a tray, rollers removably mounted in the tray, a frame pivoted to the tray, being adj ustable forwardly and rearwardly, a second frame pivoted to the forwardly and rearwardly adjustable frame, the second frame having vertical adjustment, and a roller carried in the second frame, occupying such relation to the rollers in the tray that the tray-rollers and the frame-roller may combinedly support the endless belt of films, as and for the purpose specified.

In a device for developing films, the combination, with a tray and rollers journaled in thesaid tray, the rollers being spaced a sufficicnt distance apart to admit of a negative of predetermined size to be held in the said tray, of adj ustably-connected frames, the said frames having adjustable connection with the said tray, and a roller carried by one of the frames, adapted in conjunction with the rollers in the tray to support a belt of films, for the purpose set forth.

4. The combination,with a developing-tray having slot-bearings having curved upper portions and substantially straight lower ends, and rollers the trunnions of which are removably located in the said slot-bearings, of a frame pivoted to the said tray at a point between the rollers, a locking device for the frame, a second frame pivotally attached to the frame connected with the tray and being at a right angle to the tray-frame, a locking device located at the point of connection of the two frames, a roller located in the upper frame, and means for turning the said roller, for the purpose specified.

ALBERT GOOD'ER.

Vitnesses:

O. P. OLOUGI-ILIN, ALEXANDER C. Wnrr-n.

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