US2455357A

US2455357A - Apparatus for processing film

Info

Publication number: US2455357A
Application number: US618380A
Authority: US
Inventors: Le Roy M Dearing; Ira B Current
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-09-24
Filing date: 1945-09-24
Publication date: 1948-12-07
Anticipated expiration: 1965-12-07

Description

Dec, in 1545.. ,L M. BEAM@ Em 2,455,357

APPARATUS FOR PROCESSING FILM Filed Sept. 24 1945 3 Sheets-Sheet 1 Dec. 7, 194s.

' l.. M. BEARING Erm. APPARATUS FOR PROCESSING FDL-ii Filed Sept. 24, 1945 3 Sheets-Sheet 2 Dec. 7, i948. L. M. BEARING Erm. 2,455,357

APPARATUS FOR PROCESSING FILM SI1-wanton' LeRoy M, Dear/'ng /ra B. Current Patented Dec. 7, 1948 APPARATUS FOR PROCESSING FILM Le Roy M. Dearing and Ira B. Current, United States Navy Application September 24, 1945, Serial No. .618,380

` 4 claims. (C1. 242-77) (Granted under the act of March 3, 1883, as amended April 30,1928; 370 0. G. 757) The present invention relates to apparatus for processing lm and other materials, and particularly to apparatus that may be loaded' in an unfolded or extended position.

An object of the present invention is the provision of a loading yoke wherein a folding rack in extended position may be rotated in such manner as to wind film on or off the apparatus without causing damage to the llm.

A further object of the present invention is the provision of a film holder that may be packed in a small space for storage and transportation.

Other objects and advantages of the invention will become apparent during the course of the following detailed description when taken in connection with vthe accompanying drawings forming a part of this specification, and in which drawings:

Figure l is a perspective view of a pair of frames in folded position and illustrating -means for holding the frames in folded position and means for lifting the frames.

Figure 2 is a perspective view of a pair of frames in open position and supported between supports for rotation and means for locking the frames together.

Figure 3 is a front elevational view of means for pivotally mounting sections together and further illustrating rneans for locking the sections tgether, parts being shown fragmentarily.

Figure 4i is a front elevational View of Figure 3 illustrating the pivotal means in assembled position and the locking means in locked position,

parts being shown fragmentarily.

Figure 5 is a sectional view taken on line 5-5 of Figure 4i.

Figure 6 is a fragmentary view, illustrating a pintle stop and one of the ridges on a transvers rail.

Figure 7 is similar to Fig. 2 showing a diilerent supporting means.

Referring to the drawings the numerals I5 and i6 represent a pair of frames or racks that may be made oi any suitable m-aterial that is resistant to strong alkaline developers or acid oxidizing solutions, examples of the material being water proofed wood, stainless steel, Plexiglas. rubber,

co-polymers of vinyl acetate and vinyl chloride.l

Frame I5 comprises side rails I'I and I3 and transverse rails I9 and 20, the transverse rails having ridges 2 I. The side rail I1 is provided with

apertures

22, 23 and 2l, and slots25 and 26 that receive respectively the ends of transverse rails I9 and 20. Side rail I8 is provided with

slots

21 and 28 that receive respectively the opposite ends 2 of'the transverse rails I9 and 20, the side rail I8 being further provided with apertures that are in horizontal alignment with the apertures in the rail Il only one aperture 29 being visible ln Fig- \ure l.

Frame i6 is identical in structure to frame I5 and it comprises side rails 30 and 3|, and

transverse rails

32 and 33 the transverse rails having ridges 34. The side rail 30 is provided with

apertures

35, 36 and 31 and

slots

38 and 39 that receive respectively the ends of

transverse rails

32 and 33, The rail 3| is provided with slots d0 and 4I that receive respectively the opposite ends of the

transverse rails

32 and 33, the side rail being further provided with apertures that are in horizontal alignment with the apertures in the rail 30.

As shown i'n Figure 1 the

frames

15 and 16 are shown in folded position and they are held together by a U-shaped clip 43 the legs of which engage the

apertures

23 and 36. The numeral i4 represents film wound on the frames i 5 and i5, one end of the film being connected to an element 45, the opposite end of the i'llm to an element 455. The apertures adjacent the ends of the side rails are adapted to be engaged by fingers il and G3 of arms 'S9 and 50 that are secured to a handle 5I as shown in Figure 1. It is to be noted that nger tl is engaged with aperturetl and finger 48 with Iaperture 29, the fingers being engaged diagonal to each other, permits the rackswhen being lifted or let down to hang in a vertical position.

In Figure 2 of the drawings, the frames I5 and i6 are in an unfolded position and they are secured together by U-shaped clips 52. The frames are interposed between supports 53 that are provided With pintles 54, one of the pintles engaging the aperture 36 in the side rail 30, the pintle in the opposite support engaging the aperture 23 in the side rail I1, thus allowing the frames to be rotated between the supports.

To the rail I8 there is secured bythreaded bolts 55 a female hinge 5B having a front plate 5l, a rear plate 58, and a receiving slot 59, the plates being in spaced relation and integral. The rear plate 58 has an L-shaped end portion 60 that serves as a bearing point and stop. To the rail 3| there is secured by bolts 6I a male hinge 62 having a front plate 63, a rear plate 64 and a slot portion of rails i8 and 3l' being shown. In the recess in the rail Il there is an arm l that is pivotally mounted therein by a bolt 'I I. One edge of 'the arxn 10 is provided with a spring element 'l2 having a curved portion 18 that bears against the wall 'Il o f the recess, thereby holding the arm in anguiarly disposed position and in enlaement with the element 81. The lower end of the arm 10 is provided with a lug 15 that engages the U-shaped pintle element 81 thus serving as a retaining means for leg 88 in the slot i9.

In the use of the present invention and as illustrated in Figure 2, the frames or racks il and Il are in an extended or unfolded position and are supported by the supports 53. Film I4 as indicated -by the solid lines Figure 1 and the dotted lines Figure 2 is wound on the frames, the loops of the film being held in spaced relation by the ridges 2i and 34, the ends of the film being secured respectively to the elements 4'5 and I8. The frames I5 and Il are now folded and as shown in Figure 1 are secured-together by the U-shaped element 43. The handle 6i is attached to the frames as shown in Figure 1 and the frames lifted and placed in various tanks for developing` and washing.

From the drawing it can be seen that the provision of the

hinge members

58 and 62 provide a means for connecting and locking a plurality' of frames together. Where a number of frames are to -be connected together, instead of the pintles as shown in Figure 2, a rod 98 as shown in Fig. 7 may be used, the rod passing through the frames and supports'.

The invention described herein may be manufactured and used by or' for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

What we claim is:

1. In apparatus for processing photographic film, rigid, rectangular, folding frames adapted to support film helically wound in loops thereon comprising side rails provided with aligned apertures on the transverse axis of the frame and with apertures near either end thereof, two hinge members on each side rail adapted to coact with the hinge members on an adjacent frame, a U- shaped pintle element adapted to connect the coacting hinge members, and spring biased locking means on the side rail of the'adiacent frame adapted to hold the hinge members in cooperative relationship.

als

2. In apparatus for processing photographic film, the combination of two rigid rectangular folding frames as defined by claim 1, a U-shaped clip adapted, in cooperation with the apertures on the transverse axis of the frames, to hold the frames in folded relationship, and handle means adapted in cooperation with the apertures near the ends of the side rails, .to lift the folded frames.

3. In apparatus for processing photographic film, the combination of two rigid rectangular folding frames as defined by claim 1, and U- shaped clips adapted to hold the frames in unfolded. coplanar relationship, and supporting means to engage the apertures in the side rails on the transverse axis ofthe frames and adapted to rotatably support the latter whereby a 111m can be helically wound onto the frames.

4. In apparatus for processing photographic nlm, the combination of a plurality of rigid, rectangular, folding frames as defined in claim 1, U-shaped clips adapted to hold the frames in un folded, coplanar relationship, a rod adapted to extend through the apertures in the side rails on the transverse axis of the frames, and means adapted to receive the ends ofthe rod and to thereby rotatably support the said plurality of frames for winding of film thereon.

LE ROY M. DEARlNG. IRA B. CURRENT.

REFERENCES CITED The following references are of record in theI file ofthis patent: