Патент USA US2105165код для вставки
Jan. 11, 1938. F1 Q, scHNELZ 2,105,165 I DEVICE FOR WASHING PHOTOGRAPHIC PRINTS Filed April 9, 1937 I BY My _ I » . _ A TTORNE ys. Patented Jan. 11, 1938 ,- - ~ 2,105,165" UNITED STATES PATENT OFFICE 2,105,165 DEVICE FOR WASHING PHOTOGRAPHIC PRINTS Frederick C. Schnelz, Detroit, Mich. Application April 9, 1937, Serial No. 135,863 4 Claims. rl‘he present invention relates to washing or spray devices generally, and in particular provides an improved device for washing photographic prints or the like. 5 A relatively wide variety of devices have heretofore been proposed for the purpose of washing photographic negatives or prints, following the treatment thereof with developing solutions. Conventionally, the washing operations are ef~ 10 fected in trays or pans, and the devices in question may take the form of nozzles or sprays which are designed to cause a circulation of the water over and past the negatives or prints in order to remove all traces of the developing solution 15 therefrom. An illustrative arrangement of this kind is shown in the Nichols Patent No. ‘1,136,705, granted April 20, 1915. .- Devices of the Nichols type, however, as well as others, of which the present applicant is 20 aware, are objectionable either in that they do not effectively maintain the water in circulation relative to the negative or prints, in that they permit the-negatives or prints to become stuck together, or in that they cannotreadily be ad25 ‘justed to modify the circulating effect or to adapt (01. 95-97) corresponding reference characters are used to designate corresponding parts and in which: Figure 1 is a View in front elevation of a typical photographic washing arrangement; Fig. 2 is a view in vertical section of the im- 5 proved washing device; and ‘ Fig. 3 is a plan view, taken along the line 3—3 of Fig. 2. Referring ?rst to Fig. 1, it will be appreciated that photographic or similar washing operations 10 are conventionally effected by depositing the negatives 01' prints, 01“ ether Specimens, as the case may be, within a tray or pan II), which in turn is deposited within a collecting device such as the sink I2. The washing solution, conven- 15 tionally water, is supplied to the tray Ill through a hose l4, and a nozzle structure I6, to the con struction and arrangement of which the present invention is primarily directed. The Water is circulated within the tray 01" pan to by the nozzle I20 structure I6, and over?ows from the tray Ill into the sink I2. > Referring more particularly to Figs. 2 and 3, the device It Comprises a nozzle member I8 which is remcvably and adjustably secured to the them to differing constructions of washing'trays side wall of the Dan 01' tray to by means of the or pans. The present invention is directed pri- clamp 20. The nozzle member I8 is illustrated marily to the provision of a washing device which completely overcomes all of the just noted ob30 jections, as well as others, With the foregoing considerations in view, objects of the present‘invention are to provide a device of the above indicated character, adapted to both maintain a washing solution in circulation and keep prints or negatives or the like separated from each other; to provide such a device which is readily adjustable to modify the circulating and separating effects; to provide such a device which is readily adjustable to dif40 ferent depths of washing trays or pans; to pro~ vide such a device which may be readily secured to and separated from washing trays or pans of different sizes and constructions; to provide such a device embodying a clamping member adapted 45 to be secured to a washing tray or pan, and. embodying a spray or nozzle member having one or more rows of ori?ces through which angularly displaced streams of water may be directed to cause a circulation within the tray or pan and 50 also to cause the prints or negatives to remain separated from each other. With the above, as well as other objects, in view, a preferred but illustrative embodiment of the invention is shown in the accompanying 55 drawing, throughout the several views of which 5 as being of tubular form, One end of Which is received within the end of the hose I4, and the lower end of which is closed, as by a suitable 30 plug (not shown). I Preferably and as illustrated, at least two separate rows of ori?ces I811 and I 8b are provided in the Side Wall Of the tube I8, the two rows being in aneularly spaced rela tion to each other. With this arrangement, and 35 by rotating‘ the HOZZIe '8 t0 the position Shown in Fig- 3, a plurality of Streams of Water may be caused to issue from the ori?ces I8a in a direc tion generally parallel to the side Wall I 0a of the tray 01“ Dan 10. These Streams of Water 40 effect a circulation of the water around the pan, causing it to ?ow continuously and without sub stantial turbulence Over any negatives or prints or other specimens which may be disposed within the pen- At the Same time, a Corresponding 45 series of streams of Water may be caused to issue from the ori?ces 58b in a direction gener ally transverse of the wall Iiia, which streams of water impinge upon the edges of the prints or negatives and tend to flow between the suc- 50 cessive layers of the prints or negatives. This action is found in practice to e?ectively keep the prints Or negatives freely separated, thus insur ing that the entire surface of each print or negative is completely Washed by the water. 55 2,106,165 2. ., U-shaped body having the spaced legs 22 and 24, ceive photographic specimens or the like, a com bination of a tubular nozzle member adapted to which are adapted to be ?tted over the side wall be projected into said tray, said nozzle member lDa, of the tray Ill. The inner face of the leg 24 having a ?rst substantially vertical row of ori ?ces through which liquid may be discharged to effect a circulation within the container, and hav ing a second substantially vertical row of orifices through which liquid may be discharged in sub stantially horizontal streams to maintain said specimens in a separated condition, said rows be The bracket or clamp 20 comprises a generally is preferably formed to abut a substantial area of the surface of the walls lOa, so that a tilting or rocking of the clamp is prevented, and the outer leg 22 is provided with a threaded opening 26, to receive a locking stud 28. The inner end 10 of stud 28 bears against the outer face of the wall Illa, and may be turned between the locking and released position by a conventional knurled head 30. Preferably, the spacing between the legs 22 and 24 is great enough to accommodate the clamp to a pan or tray having a relatively large bead ing angularly displaced from each other. such as the bead lOb. which liquid may be projected into said container, In order to accommodate the nozzle I8, the bracket 20 is provided adjacent its upper edge with a boss 32, which is bored to freely, slidably a bracket having a boss within which said tubu and rotatably receive the nozzle I8. A locking stud 34 is received within the threaded open ing provided in the boss 32, and may be turned inwardly or outwardly by the knurled head 36 to into a tray or like container and having one or more ori?ces in the side wall thereof through lar nozzle is rotatably and slidably received, said bracket having a U-shaped portion adapted to fit over the side of said container, and means for locking said bracket to said container and for locking said nozzle within said bracket. 3. A device for use in the washing of photo either lock the nozzle la in a selected position graphic prints comprising, in combination, a of adjustment or to release the nozzle 18. In the locked position, it is noted that the inner end of bracket adapted to engage over the side of a container, means for releasably and rigidly se the stud 32 bears directly against the side wall of curing said bracket to the side of said container, the nozzle l8. It will be appreciated that the complete device a nozzle member provided with a plurality of 30 may be readily and economically manufactured. It will also be appreciated that it may be readily and quickly applied to and removed from trays or pans of widely varying constructions, and that, in the clamped position on a tray or pan, it is rigidly held against tilting or rocking. It will also be appreciated that the provision of the ad justment between the nozzle 18 and the bracket 20 permits the nozzle [8 to be adjusted both verti cally, to accommodate it to pans or trays of 40 differing depth, and also permits it to be rotative ' 1y adjusted to selectively control the direction of ?ow of the sprays or streams of water from the several rows of ori?ces. Although a speci?c embodiment of the inven 45 tion has been described, as well as a speci?c ap plication or use therefor, it will be appreciated that the invention may be applied to uses other than those speci?ed, and may be embodied in forms differing widely from the illustrated form. 50 2. In a device of the class described, the com bination of a tubular nozzle adapted to project What I claim is: 1. In a device of the character described, for use with a tray or like container adapted to re ori?ces therein adapted to eject streams of liquid therefrom in the same general plane, said nozzle 30 member being axially adjustable relative to said bracket whereby to permit its vertical relation with respect to the bottom of said container to be varied, and means for releasably and rigidly securing said nozzle member in axially adjusted 35 relation with respect to said bracket. 4. A device for use in the washing of photo graphic prints comprising, in combination, a bracket adapted to engage over the side of a container, means for releasably and rigidly se curing said bracket to the side of said container, a nozzle member provided with a plurality of ori ?ces therein adapted to eject streams of liquid therefrom in the same general plane, said nozzle member being rotatably adjustable relative to _ said bracket whereby to permit the angular rela tion of said streams with respect to said container to be varied, and means for releasably and rigidly securing said nozzle member in rotatably adjusted relation with respect to said bracket. FREDERICK C. SCHNELZ.