US2429499A - Film hanger - Google Patents

Description

Patented on. 21, 1947 UNITED STATES PATENT OFFICE- FILM HANGER Harry S. Wolf, Brooklyn, N. Y.

Application September 21, 1945, Serial No. 617,784

This invention relates to hangers for holding film during the developing, washing, fixin and drying thereof. More particularly, the inven tion pertains to that class of film hangers in which film is carried in a U-frame having channel-shaped sides and a movable top.

It is an object of my invention to provide an improved film hanger of the character described which comprises relatively few and simple parts, is economical to manufacture and is durable and efficient in operation.

It is another object of my invention to provide a novel means for supporting the movable frame top.

Other objects of the invention will in part be obvious and in part will hereinafter be pointed out.

The invention, accordingly, consists of the features of construction, combinations of elements and arrangements of parts which will be exemplified in the construction hereinafter described and of which the scope of application will be indicated in the appended claims.

In the accompanying drawings, in which is shown one of the various possible embodiments of my invention,

Fig. 1 is a front view of a film hanger embodying my invention, the same being shown in closed position;

Fig. 2 is a side view of said film hanger;

Fig. 3 is similar to Fig. 2, but with the film hanger open; and

Figs. 4 and 5 are enlarged fragmentary sectional views taken substantially along the lines 4-4 and 5-5, respectively, of Fig. 1, these views being illustrative of the construction of the means for supporting the movable top of the frame.

Referring now to the drawings, denotes a film hanger embodying my invention. Said hanger includes a U-shaped frame I l whose sides comprise a bottom channel member l2 and two lateral channel members 14 and I6 joined to the bottom at the corners I8, in any suitable manner, for example spot welding.

The channel members have a plurality of perforations 22 in their legs and bases to facilitate the flow of treating solutions or air over the surface of the film.

The top of the .U-frame H is removably closed by a strip 24 comprising the horizontal flange of a horizontally extending light gauge angle iron 26. Said angle iron has its ends permanently secured, for instance by welding, to a pair of spaced vertical light gauge angle irons 28, 30.

5 Claims. (Cl. 95-100) The upper ends of the vertical angle irons 28, 3B are rigidly secured to a supporting bar 32 in any well known position, e. g., by welding. The lower ends of said angle irons 28, are pivotally attached to the upper ends of the lateral channel members 14, i6, rivets 34, 36 being shown, by way of example, for this purpose. The outside flanges 38, 40 of the vertical angle irons are spaced apart a distance substantially equal to the distance between the exterior surfaces of the bases of the lateral channel members l4, l6 so that the frame I l is snugly fitted between the vertical angle irons.

Each rivet 34, 36 passes through an aperture i in the base of one of the lateral channel members I4, I6 and a registered aperture in one of the flanges 38, 4B of the vertical angle irons 28, 39. The headed ends of the rivets are pressed against the underlying surfaces of the channel members I4, l6 and the flanges 38, 40 with a force sufiicient to engender a slight friction drag opposing relative rotation of these elements. Due to such construction, the frame closing strip 24 will remain in any position in which it is placed. This drag may be increased by extending the upper ends 42, 44 of the bases of the lateral channel members l4, I6 beyond the legs of said members and flexing the same outward slightly to frictionally engage the inner surfaces of the outside flanges 38, 40.

The frame ll may be reinforced, if desired, by a stiff 'wire 46 spanning the upper ends of the lateral channel members and welded thereto.

It will be seen that with the foregoing film hanger construction, the frame closing strip 24 can be swung from a position such as shown in Fig. 2, wherein it closes the open top end of the U-frame I l to the position illustrated in Fig. 3, in which film F may be inserted in or removed from the frame.

Closing movement of the stri 24 is limited by abutment of the upper ends of the lateral channel members against the back flanges 48 of the vertical channel irons 28, 30. Opening movement of said strip is limited by abutment of the bottom edges 50 of the back flanges 48 of the vertical angle irons against the back legs 52 of the lateral channel members.

It will thus be seen that I have provided a film hanger which achieves the several objects of my invention and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention and as various changes might be made in the embodiment above set forth,

vertical members rigidly secured intermediate their ends to opposite ends of said horizontal strip, a supporting bar spanning and rigidly secured to said vertical members at a side of said strip remote from said frame, and means to pivotally secure said vertical members to= said lateral channel members on the opposite side of said strip.

2. A film hanger including an open top U- shaped frame whose sides comprise a bottom channel member and a pair of lateral channel members, a horizontal angle iron disposed parallel to said bottom channel member, a pair of vertical angle irons, means to pivotally attach said vertical irons adjacent the lower ends thereof to the upper ends of said lateral channel members, and a supporting bar permanently and rigidly secured adjacent the opposite ends of said vertical angle irons, said horizontal angle iron having its ends permanently and rigidly secured to said vertical angle irons, whereby said horizontal angle iron may be swung toward and away from a position in which it closes the open top of the U -shaped frame.

3. A film hanger asset forth in claim 2, wherein the upper ends of the lateral channel members extend above the pivotally attaching means and frictionally engage the Vertical angle irons when the horizontal angle iron closes the U- shaped frame.

1. A film hanger including an open top U- shaped frame whose sides comprise a bottom channel member and a pair of lateral channel members, a pair of vertical angle irons, means to pivotally attach said irons adjacent one set of ends thereof to the upper ends of the lateral channel members, one set of flanges of said vertical angle irons being parallel to the bases of the lateral channel members, and the other set of flanges of the vertical angle irons being adapted to be arrayed parallel to the back legs of the lateral channel members, a horizontal angle iron, one flange of which is permanently and rigidly secured at its opposite ends to the last-mentioned set of flanges of the vertical angle irons, the other flange of said horizontal angle iron being perpendicular to both sets of flanges of the vertical angle irons, and a supporting bar spanning and rigidly secured to the upper ends of the vertical angle irons.

5. A film hanger including an open top U- shaped frame whose sides comprise a bottom channel member and a pair of lateral channel members, a pair of vertical angle irons, means to pivotally attach said irons adjacent one set of ends thereof to the upper ends of the lateral channel members, one set of flanges of said vertical angle irons being parallel to the bases of the lateral channel members, and the other set of flanges of the vertical angle irons being adapted to be arrayed parallel to the back legs of the lateral channel members, a horizontal angle iron, one flange of which is permanently and rigidly secured at its opposite ends to the last-mentioned set of flanges of the vertical angle irons, the other flanges of said horizontal angle iron being perpendicular to both sets of flanges of the vertical angle irons, the upper ends of the bases of the lateral channel members extending beyond the upper ends of the legs of said lateral channel members and being flared outwardly so as to frictionally engage the firstnamed set of flanges of the vertical angle irons, and a supporting bar spanning and rigidly secured to the upper ends of the vertical angle irons.

HARRY S. WOLF.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,363,184 Luboshez Dec. 21, 1920 1,398,938 Chapman Nov. 29, 1921 1,496,003 Holzmueller June 3, 1924 1,583,708 Viken May 4, 1926 1,858,576 Bornmann May 17, 1932 2,368,078 Stifiler Jan, 23, 1945 FOREIGN PATENTS Number Country Date 366,601 Great Britain Feb. 8, 1932

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