US353849A - Photographic-print washer - Google Patents

Description

(No Model.) a Sheets'Sheet 1-.

W. G. ENTREKIN, PHOTOGRAPHIG PRINT WASHER.

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PHOTOGRAPH IG PRINT WASHER.

I Patented. Dem '7, 1886.

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W. G. ENTREKIN.

PHOTOGRAPHIG PRINT WASHER. No. 353,849.- Patented Dec. 7, 1886.

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the drain-pipe B, with which also communi- UNITED STATES PATENT OFFICE;

WILLIAM G. ENTREKIN, OF PHILADELPHIA, PENNSYLVANIA.

PHOTOGRAPHIC- PRINT WASHER.

' SPECIFICATION forming part of Letters Patent No. 353,849, dated December 7,1886.

Application filed May 14, 1886. Serial No. 202,159. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM G. ENTREKIN, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Photographic Print \Vashers, of which the following is a specification.

The main object of my invention is to so construct a photographic-print washer as to effect the elimination of the soda from the print in a short time, so that the brilliancy of the albumen surface will not be dulled as it is by long-continued washing, further objects of the invention being to prevent the overflow of the pan, to insure the continual movement of the prints while they are being washed, and to prevent the clogging of the perforations in the lower jet-pipe of the pan.

In the accompanying drawings, Figure 1 is a perspective view of a photographic-print washer constructed in accordance with my invention; Fig. 2, a transverse section of the same; and Fig. 3, a sectional plan on the line 1 2, Fig. 2.

A is the casing of the pan, which has an inverted conical bottom, a, communicating with cates an overflow-pipe, D, and a siphon-pipe, F, the drain-pipe being provided with a valve or cock, I), and the siphon-pipe with a similar valve or cook, f, but the overflow-pipe providing at all times a free outlet from the pan.

Within the pan is a print cage, G, having perforated bottom and sides, and around the bottom of this cage are arranged two semicircular pipes, H H, each of these pipes com municating near one end with a branch, h, of a water-supply pipe, I, and near the opposite end with a branch, h, of a drain-pipe, J.

In the pipes H H are formed inclined perforations, so that the water escapes therefrom in the form of a number of inclined jets,which impinge upon the prints, wash the same, and at the same time cause the continued rotary motion of the mass of prints in the cage, this washing and turning movement being supplemented by similar inclined jets escaping from orifices in an annular pipe, K, arranged around thetop of the cage and communicating through a branch, is, with a branch, I, of the watersupply pipe I. This branch I terminates in are adjusted as shown in the drawings, all the valves in the supply-branches being opened, and all the valves in the discharge-branches being closed, so that the waste water overflows through the pipe D.

The print-cageG is less in diameter than the pan A, so that an annular chamber, 41:, is formed around the cage, from which chamber the overflow takes place, and as the prints cannot escape from the internal cage there can be no obstruction of the overflow by reason of a print being drawn into or over the mouth of the same, as in that class of Washers in which the overflow.takes place directly from the cage or pan in which the prints are placed.

\Vhen it is desired to eliect the automatic draining of the pan at intervals, the valve in the siphon-pipe F may be opened, and either of the pipes II II may be utilized as a drainpipe, if desired, by closing the valve in the supply branch and opening the valve in the discharge-branch communicating with said pipe, the flow of water inward through the perforations serving to dislodge therefrom any obstructions which may have been lodged therein by the outward flow of water.

Owing to the constant agitation of the prints and to the numerous jets of water, both from above and below, to which they are subjected, and owing, also, to the ready escape of the waste water flOIll' all parts of the sides and bottom'of the print-cage, the prints can be thoroughtly washed in a very short time, so that there is no loss of brilliancy in the albumen surface, such as is caused by long-continued washing. Moreo ver, all parts of the pan the chamber beneath the perforated bottom of the print-cage and is drawn oft from said chamber by the siphon-pipe, so that there can be no accumulation of soda solution in the lower part of the print-cage, as in apparatus in which the inlet of the siphon-pipe is above the bottom of said cage.

I claim as my invention-- 1. The combination of the pan having a print-cage and a chamber beneath the same, with the siphon-pipe communicating with said chamber beneath the cage, all substantially as specified.

2. The combination of the print-cage with a perforated pipe located in the lower portion of the same, and-having a valved supply-pipe and a valved discharge-pipe, whereby either an inward or an outward flow of water through said pipe may be maintained, all substantially as specified.

an unobstructed overflow-pipe, and a siphon drain-pipe, all substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

\V. G. ENTREKIN.

Witnesses:

WILLIAM D. CONNER, HARRY SMITH.

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