US562239A - Photographic washing-tank - Google Patents

Description

(No Model.) v G; R. PERKINS.

,PHOTOGRAPHIG WASHING TANK.

l YIIVVEIVTOH YBY nrromvs ys.

Patented June 16, 1896'.

U iT D STATES PATIENT OFFICE.

R. PERKINS, OF SGHU-YLER, 'NEBRASKA.

-PHOTOG nAPHlo WAS H.lN G-'1AN K.

SPECIFICATION forming part of Letters Patent No. 562,239, dated June 16, 18 96.

Application filed February 15,1896. Serial lit-579,425. on an.)

of Nebraska, have invented, a new and Improved Washer for Photographic Negatives,

of which-the,following isa full, clear,- and .ex'act description.

The object of. t1re .invent1on is to provide a new'and,improved portable washer-for photowashing the developed negative-plates, and.

enn -m t withoet.r a is ng wel plates. 'on}.-zconsists.-

g the was to. d efterzw s.

he inter mbe s ha ing: an .ma ie ly orenius matte g": dapted o eo ta i $.a1. rash- 3 x vat e np-uly tQ ai-d: boa

will be fully described..hereinfafterand then p sd 'qetainifl s aims- T Reference is to be had to the accompanying drawings, forming apart of this s'pecification, in which similar characters of reference indicate corresponding parts in all the figures. I

Figure 1 is a sectional side elevation of the washer. Fig. 2 is a sectional plan view of the same on the line 2 2 of Fig. 1, and Fig. 3 is a sectional side elevation of the overflow for the wash-box on the line 3 3 of Fig. 2. a

The improved device is provided with a wash-box-A and a water-supply tank B, having an outlet 0, adapted to discharge water into said wash-box A, as indicated in the drawings. The amount of water passing through the outlet 0 into the wash-box A is regulated by a needle-valve D, held to slide vertically and mounted on a float E, adapted to rise and fall with the water in the washbox A.

the outlet 0, and the lower end thereof is guided in a bracket F, held on the rear'wall of the box A. In the latter is adapted to he set-a rack G, of any approved construction, and adapted to support in a vertical position the exposed negative-plates H, to be washed by the water passing through the wash-box PERkiN's, of

g .of the imaging.ideas:

nd an autoe nega ive-Pl e t be wa te-am se eet alve 'wsr im r The-iavsn i nal.aqeesis s ofj r tar s, and-zcletails aedcqm a i s f h ame; as

The upper end of the valve D extends into A. I The rack-G is preferably made witlrcorrugated sides made step-like, as ind icated in Fig; 2, seats to accommodate negative-plates of various sizes. j v

. In one of the corners ofthe box A, prefer-' ably 'at'the front, is arranged an overflow I,

1 .made in sucha manner that the waterenters f the overflow at the 'bottom'of the box, to prevent freshwater froin'being drained oifby the I v overflow, and to cause the impure water-that is, that which has passed over theplate's HP-lJO'f 'be drawn oifas fresh water enters at the out- .'vided withinnei fand outer channels I: I '(see' Fig-3,)" of which the innerchannel I "extends' 1 from the top of thdbox to within a short disf tance' of thejbottoln thereof, and its upperend connects with the u per end of the chane 7o nel l' whichfopensfat its lower end to the outsi eof e-box, to discharge he Waterinto a pail J, set below the wash-box AL I In order to drain the wasl 1 -box A of a'l l the,"

are ivas'hed,"I provide the followingdevice': In thesupply-tank B is arrangeda float K, connected by a link Lavith a' lever N; fulcru'med; on the top edge of the tank, and limited in its swinging motion bya stop 0,,so as 8 to hold the float-K normally in an uppermost position; that is, as long as water is in the tank B. The outer end of the lever N is pivotally connected by a cord or rope P with a valve Q, normally seated on the outlet R, ar-

ranged in the bottom ofthcbox A, and situated directly over the pail J, so that when all the water is discharged from the tank B the float K sinks, and in doing so imparts a downward-swinging motion to the inner end of the lever N and an upward-swinging motion to the outer end of said lever, whereby the cord or rope P lifts the valve Q oft its seat to open the outlet R. The water contained in the box A is now drained cit through said outlet 5 B into the pail J. 1

In using the device, the rack G, filled with the plates H, is set in the wash-box A and the latter and the tank B are filled with water. Thefloat E in the form' of a cork is adjust- 10o ably held on the valve D, so that the amount of water dripping through the outlet 0 past the valve D can be regulated to any desired degree. Now, as the water rises in the wash-- liquid:contained, tlierein afterthe'plates 'lifyg in the sides of the box and is'provided with combination-witha reservoir having an out- 3 5 let, of a wash b ox belowthe outlet of the reser .80

box A to within ashort distance of the upper be seen that by this arrangement fresh Water flows into the wash-box A from the tank B continuously for a desired length of time, to insure a proper, washing of the plates II, it being understood that the impure or wash water is drained off by the overflow I into thepail J. \Vhen the tankB is nearly-empty, the float K commences to sink, and in doing so finally lifts the valve Q oif its seat,wl1ereby all the water from the wash-box A is discharged through the outlet R into the pail J. Thus the washed plates H can remain in the box A until they are completely dry, it being understood that the draining of the water from the box A is automatic, and consequently the plates need not be disturbed or removed from the box A until they'are completely dry.

In order to make the apparatus portable and to readily set the same up for use whenever required, I provide a packing-box S, in which the box A and tank B, as well as the other .parts, can be stored when not in use This box S is adapted to support at its top the tank 13, as shown, part ofthe front side being made in the form of a hinged door T, adapted to be swung downward into a horizontal position, so as to form a shelf for the wash-box A. This door T is fulcrumed at T rearwardly-extending arms'T adapted to ,abu t'against the under side of stopsS, seclu'ied to the inside of the box to hold the door in a horizontal position.

hen not in use, the

door T is closed to form a continuation of the side of the box. I

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent l. A photographic washing-tank, comprising a wash-box having an outlet and prox ided with an overflow, a reservoir for supplyin and described.

water to the wash-box, a valve for closing the outlet of the wash-box, and means for automatically opening. the valve to empty the wash-box when the reservoir is emptyfor nearly so, substantially as described.

2. A photographic washing-tank, comprisin g a wash-box having an outlet in its bottom and provided with an overflow, a reservoir for supplying water to the wash-box, a ,valve for closing the outlet of the waslhbox, a float in the, reservoir, anda connection between the float and valve for operating thedattor from the former when the reservoir is empty or nearly so,'substautially as described.

3. A photographic washing-tank, comprisin g a wash-box having an outlet in its bottom ply of waterfrom the reservoir to said box, 6 5

a valve for closing the o'utlet'of the wash-box, a heat in the reservoir, and a connectionbetween the float and the valve in the outlet of the wash-box, substantially-"as hereinshown 4. In a hotogra h;ivasinghhk, the

combination with a reservoir having an outlet in its lower portion, of; a wash-box arranged under the Quiet and provided with an over flow, aneedle-valvehavin g guided movement I in the wash-box',and a float on the said valve,

substantially as described. 5. In a photographic washing-tank, the

voir and having an outlet'in its bottom and provided with an overflow, a valve in the outlet of the wash'-box,a float in the reservoir, anda pivoted lever having one end connected with the float and the other end with the valve, 8 5

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