US1825310A

US1825310A - Photographic film support

Info

Publication number: US1825310A
Application number: US270649A
Authority: US
Inventors: Carl O Engstrom
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-04-17
Filing date: 1928-04-17
Publication date: 1931-09-29
Anticipated expiration: 1948-09-29

Description

Sept. 29, 1931. c. o. ENGSTROM PHOTOGRAPHIC FILM SUPPORT Filed April 17. 1928 @Z/L/GGWD BY W? A TTORNE Y.

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The present invention relates to improvel'ments in. developing, draining or drying racks for photographic films, and by the use of which photographic films being developed I' may be carried in numbers on asingle support and may be individually or simultaneously manipulated to remove them from the treatment bath or fluid for examination or inspection-without detaching the same from 1 their individual mounting devices or from the support. The'invention consists in connection with a developing tank of one or more supports dis osed in cooperation to the tank fluid, and one or more film mounting devices carried by and axially rotatable on the support and adapted to be yieldably or releasably held in their rotated position.

The invention also consists in the particular construction of the film mounting devices, and of the device mounting supports.

With the above mentioned and other objects in view, the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the accompanying drawings, and set forth in the claims hereto appended, it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be resorted-to without departing from the spirit or sacrificing any of the advantages of the invention.

To more fully comprehend the invention, reference is directed to the accompanying drawings, wherein Fig. 1 is a view in broken perspective of my invention as applied to a developing tank.

Fig. 2 is a view in rear elevation of the main body portion of one of the clips illustrating the retaining spring.

Fig. 3 is a view in side elevation of one of the clips.

Fig. 4 is a view in front elevation of one of the clips.

Referring more particularly to the draw'. ings wherein like characters of reference designate corresponding parts, 1 indicates a tank or container, in the present instance the other.

was. serial no. 270,649...

tank. On the upper edge of one wall thereof is secured a bearing 2 having a bearing recess 3 disposed facing the inner portion of the tank. Removably positioned transversely of the tankis a supporting rod 4 illustrated as polygonal in cross section with one end received in the bearing recess 3 in bearing 2. It will be understood that, if it is sodesired, both ends of the rod may be received-1 in fcompllementary opposing bearing recesses, orft at the rod may rest freely on the upper-edge'offthe tank.

Supported byI-the rodi'are ne or more clips 4, consisting'ofj' cooperating jaw sections 5 and 5 pivotall'y ,connectedas at 6 with coiled springs 7 bearing outwardly. against the respective; jaw sections" above their point of fulcrum to force their" co operating film engaging teeth 8 toward each The jaw section 5 has an integral body extension 9 hooked at its upper end at 10, and carrying on its face an identification plate 11 on which may be mounted any data or information relating to the film carried by the clip. If desired, the plate 11 may be of such material and construction that the matter written thereon may be readily erased or removed therefrom adapting the clip for successive uses without changing the plate 11.

At a point below the plate 11 the body extension 9 is provided with an aperture 12 through which the rod 4 passes when the clip is mounted thereon. The jaw section 5 is provided with a looped portion 13 forming an aperture 14 in alignment with aperture 12 and through which the rod 4 extends.

On the rear surface of the extension 9 is secured at 15 one end of the looped spring 16, the free end 16 of which normally lies within the area of the aperture 12, as in Fig. 2, and bears against the polygonal surface of rod 4 when the parts are assembled. From the present construction it will be observed that with one or more films 17 held by the teeth of each clip 4' and with the clips mountedon a rod 4, that the rod when resting on the upper edge of the developing tank 1 and the clips in vertical position, each film will be submerged in the developing solution. The operator may axially rotate the rod at which time the clips will rotate therewith as a unit and raise the films from the developing solution so that their condition of development may be observed. The clips are also adapted for independent axial rotation about the rod 4, and when so adjusted are yieldably held in their adjusted position by the tree portion 16 of spring 16 bearing on one of the faces of rod 4. By my construction, one or more of the clips on any given rod may depend vertically thereiron'i, and the others may be adjusted to any desired angle circumterentially of the rod for examination or drying, the limitation of the angle of adjustment depending solely on the number of faces on the rod 4.

It will be observed that the clips are free to slide longitudinally of their respective rods, and when the rods are removed therefrom, it it is so desired, the clips may be supported on any other means by their hooked portion passing thereover.

The slotted ends 10 may be used for supports for the clips when the clips are turned angularly upside down and are mounted on a rod. The rod with the mounted clips may be removed from the tank and its end inserted in a recess corresponding to recess 3 and be thus held suspended in this manner.

I claim 1. A sheet suspending device comprising a clip consisting of pivotally connected relatively movable jaws one having a body extension formed with an aperture therethrough, and a yieldable member carried by the clip and movable transversely over the axis of said aperture. 1

2. A sheet suspending device comprising a clip consisting of pivotally connected relativcly movable aws one having a body extension formed with an aperture therethrough, and a spring member carried by the body extension and movable transversely over the face thereof and across the axis of said aperture.

3. A sheet suspending device comprising a supporting rod polygonal in cross section, a clip mounted on the rod having a. body extension provided with an aperture through which the said rod extends for supporting the said clip rotatable axially of the rod, and a yieldable member associated with said clip for bearing on the surface of said rod for retaining the clip in its adjusted position axially of the rod.

4. A sheet suspending device comprising a supporting rod polygonal in cross section, a clip mounted on the rod having a body extension provided with an aperture through which said rod extends for supporting the said clip rotatable axially of the rod, a spring carried by the clip and movable transversely in bearing relation against said rod surface, and adapted to maintain the clip in a predetermined position on the rod.

5. A sheet suspending device comprising a supporting rod polygonal in cross section, a clip mounted on the rod having a body extension provided with an aperture throu 'h which said rod extends for su porting t e said clip rotatable axially o the rod, a spring secured at one end to the clip with its free end movable across said aperture into bearing relation against said rod surface and adapted to maintain the clip in a predetermined position on the rod.

In testimony whereof I have signed my name to this specification.

CARL O. ENGSTROM.