US1591167A - Photographic print washer - Google Patents

Description

July 6 1926.

L. B. LEWIS PHOTOGRAPHIC PRINT WASHER Filed Oct. 17, 1925 gmwm LesterfiJJewii' Patented Jul 6, 1926.

LESTER B; LEWIS, or M cnoiw, linimnsni i rno'roennrnrc PRINrW-ASHEnj- V na -m a October 17,1925. "Serial ms. 62,9963] w V thebe'st results. This is usually efiected'f'by water in motion, the commonfpracticebeing to subject the printltona stream of water.

1 issuing from an outlet, suc has a faucet.

g n has been dis'coveredthat the chemicals T "will more readily dissolve in water-notin' motion and in accordance with the present invention, a tray is provided and mounted to automatically tilt, a mobile icounfterbale ance being utilized 'to"control' the tilting movements of the tray jointly with the water supplied thereto and drawn ofi therefrom;

'ablymounted thereon; The-fulcrum 8, like the partition'Z, is centrally disposed. The l l The invention therefore has as its primary object the provisionjofz' a tray pivotally mounted intermediate its ends 7 and adapted to receive waterfrom a'source of supply, a 7 v mobilecounterbalance freely movable from one side to the other of the pivot of the tray "and adapted to hold one end of "the vtray lowered while the opposite end of the tray 1 is receiving alsupply of water to the prede- ;.ter'1n1ned level, and means for dra'wlng Ol'l -the spentwater from" the tray.

' While thedrawi'ngs illustrate a preferred [embodiment of the invention, it is to b'elun- 'derstood that in adapting the means to meet specific needs and requirements-the design may be varied, and such-other changes in the minor details of construction-may be reso-rt- 7 ed towithin the scope of the invention as claimed, without departing from the spirit thereof. Y i

For a full understanding of the invention and the merits thereof, referenceis to' be had to the following description and the drawings hereto attached in which, Figure 1 is a front view of'a photographic printwasher embodying the invention, v Figure 2.is an inverted or bottomview of the washer,

sectional view of the device, and

VFig'ure 4 is an enlarged detail'sectional view on the line 4.4 of Figure 3 looking to the left as designated by the arrows, 1

Corresponding and like parts are referred to in the following description and desig J nated in the severalviews ofthe drawings by like reference characters;

The numeral designates'a the like for receiving thedevice when in action. The numeral 2 designates a faucet] 5, and this-is necessary" to :confinethewater laterally when the tray is-tiltedas indicated in Figure 1.

trayto draw off the spent water and as Figure 3 isa vertical,central, longitudinal forming, withthe'ends 5 terminal coverings ed. 'Aj vertical partition 7-;is c'entr'ally". dis-'- posed and divides the tray into chambers" "whereby to retainthe water'in the elevated "end portion'luntil it ha'si'rea'ched the predetermined level; A fulcrum 8' depends-from thebottom of the tray and the latter is tiltpoint and decrease in depth towards'the ends A waste 9 1s provided attach end of the shown this consists, of a-tube disposed be" neath the bottom 3and'retainedin placeby suitable means such as clipslO andthis tube is perforated along, its topside in line with a slotor opening 11 formedin the bottom 3;

.A flexibleftube 13 connects with anendof' each of the tubesQQandleads to a coupling sides iare"of ma'ximum depth at 'a central 13 to which'a hose pipe l 5'conn'ects forcon' veying thespentwater to a convenientpoint q ofdischarge. 7;,

A mobile counterbalance isassociated with the tray, soas to move freely from one end to: the other end thereof,-andthis. counter? H balancemay be provided in anyinanner, so

ilong as it functions to hold onexend of'the tray in lowered position while the opposite end of the-tray is fillinglwith water'to a predetermined level. Int-he preferable con-j stru-ction the mobile counterbalance consists of'liquid, such as mercury which is preferred becausejof its high specific gravity, the mercury designated by the numeral 16,"being confined in a chamber'or conduit '17 disposed beneath the bottom of the tray and-fastened thereto by means of clips 18-or in any pre ferred way, FThe chamber orconduit 17 ex tends substantially the entire length of the I i tray and the mercury 16 is" supplied thereto table, shelf or in suflicient quantity to' oc'cupyian end por- 7 tion of the chamber, or, conduit, when the tray is tilted, whereby to holdthe depressed 9 end in lowered position during the interval of supplying water to the elevated end to the predetermined level. v

In the operation of the device the tray is placed upon the table, shelfor other support 1 with the vertical partition 7 in line with the nozzle or outlet of the faucet i when the tray is in horizontal position, so that upon tilting the tray, as indicated in Figure 1, the stream of water from the ta'ucet 2=will flow into the elevated end portion of the tray upon one side ot'the partition 7, the opposite end portion of the tra bein held in lowered JOSltlOIl b the y b l y 5 mercury or other counterbalance in'the chamberor conduit '17. When they water reaches the predetermined level in the elevated end 'portion'oli' the tray it counteracts the; force exertedby the counterbalance and tl'iecelevated'end of the-tray descends,

' thereby changing the inclination of the chamber or conduit 1'!" with the result that the mercury or other mobile counterbalance therein movesto the opposite end of the chamber or conduit and holds the tray in the changed position during thedlscharge oi the water from one end of the tray and V the supply of water to the opposite end of the trayy When the tray receives a supply of water to the predetermined level the operation thus described is repeated and continues so long as the water is permitted to flow iromthe faucet into the'tray. The

print to be washed is placedin an end portion of the tray and the chemicals are dissolved while the tray is at rest in either position as will be readily understood.

Having thus described the invention, I claim: v V

Y 1. A photographic print washer comprising a tray pivotally mounted intermediate f its ends and a 'mobile counterbalance as- *sociated with the tray to hold one end in lowered position while the opposite end portion is receiving asupply of water to the predetermined level.

2. Amphotographic print washer comprising a tray pivotally mounted intermediate its ends, a mobile'counterbalance associated with the tray to'hold one end in lowered position while the opposite end portion is receivinga supply of water to the'predetermined level, and adischarge outlet at each end of the tray for drawing off the spent water.

3. A photographic print washer compris ing a tray 'pivotally mounted intermediate its ends and having the terminal portions enclosed to prevent overtlow of the water at the loweredend, theitray being provided at each end with an outlet for drawing oft the spent water, 'ancl a mobile counterbalance associated with the tray for holding'an end portion thereof lowered during the supply of water to the opposite end portion to the predetermined level. v

4. A photographic print washer comprising a tray pivotally mounted intermedia e its ends and subdivided centrally by a par tition, the tray having an outlet at each end so as'to discharge the spent water, a

mobile counterbalance adapted to move" freely from one end to the other end or the tray, and means assoc ated with the tray for supporting the'mobile counterbalance.

5. A photographic print washer comprisinga tray pivotally'mounted intermediate its ends and having end compartmentsand a middle partition and furthermoreuprovided with end outlets for drawing offthe spent water, a conduit extending substantially the length of the bottom of the tray, and a mobile counterbalance within said conduit. i

6. A photographic print washer comprising a tray including a bottom, side's, ends and overhangingrterminal coverings forming compartments, the sides of the tray beture.

LESTERBLLEVVI SJ [n s],

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