US1572337A

US1572337A - Film holder

Info

Publication number: US1572337A
Application number: US10965A
Authority: US
Inventors: Wachter Josef Theodore
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-02-21
Filing date: 1925-02-21
Publication date: 1926-02-09
Anticipated expiration: 1943-02-09

Description

Feb. 9,1926. 1572,33?

J. T. WACIHTER FILM HOLDER Filed Feb. 21, 1925 VII/Illi/A'III/IIIIJ/ a INVENTOR 16 Jospr TWAcHrER ATTORNEYS to provide a new and Patented Feb. 9, 1926.

.FPATENT OFFICE V wosm TIiECfDOREWAGHTER, or wasr HOB'OKEN, 'NEW'JERSEY.

FILM Home's.

Application filed February 21,1925. serial No. 10,965.

T ZZZZ whom it may concern:

Be 1t 'know'n'that I, Josnr T. 'lVAorrrEn, a citizen ofjth'e United States, and resident of lVest'Hoboken, in'the'county of Hudson andState of New J ersey, have invented certain new and useful Improvements in Film Holders,'ofwhichthe following is a speciiication.

This'invention relates to film holders such 'as used for the convenient handling of photographic films during the development thereof.

Theprinci'pal object of the invention is y improved construction of a film holder of an extremely simple and nexpensive but strong construction, and by means of which the film will be securely leld in a smooth condition against accidental displacement during the manipulation of the film andholde'r.

Another object is to improve upon the construction er devices of thischaracter by reducing and simplifying the number of parts required to be operated to s'et and clamp the filmin position in the holder.

These and other objects will appear from the following more detailed description and by reference to the accompanying drawing forming a part hereof fand wherein Fig. 1

is a perspective View of a film holder embodying my invention, the holder being shown in opened condition to illustrate more clearlythe constructional details thereof; Fig. 2 is. a'central longitudinal section 111g position,"and Fig. 3 is'an enlarged secshpwing'the frame inth'e closed orclanipti on'al detail.

As shown in the drawings the holder is in the form of a rectangular open frame consisting of an upper member and a lower member 1'1, 's aid i1einbers preferably beingpivo-tally connected along one of the "ei'idsth'er'eof. "For the purpose of'illustration Lhave sho'wnithe pivotal connection of thefranieinembers formed by projecting integral portions "of the: frames bentto form small tubular bearings adaptedto be brought into axial alineme'nt to receive a 'hin'g'epin 13. It willbe understood however thatany suitable type of hinged or pivotal connection may be employed.

The lower frame member ll hasits side edges provided with "upwardly f'extending flanges 14: which serve to position the film F and to preventlateral movement thereof when the-upper frame is being brought into clamping engagement with the film in a manner presently to be'described. The fiat or horizontal faces of the strips which form fthe clamping portions of the frame mem bers=areprovided with recesses 15 and projections 16 adapted to be brought into register when the frame members are clamped together, the projections 15 entering the recesses and slightly distorting the film to hold it securely against movement. A The side members of both the'upper and lower frames are extended beyond the rectangular clamping portions thereof to form the

legs

17 and 18 respectively. The legs 18 are slightly'longer than the legs 17 and have their ends bent backwardly to form limiting stops 19 for'the sleeves 20 which aread'apted to be slid longitudinally of said legsto engage the upperfranie legs l/Tand hold the. parts securely clamped together.

The frame members are'sliown as constructed of sheet metal andthe upper member is preferably spring metal, curved to a shape approximately asshown. in Fig. 1, so that when it is brought downwardly upon the pivotal connection, it will engage the film with a rolling contact which will naturallytend to effect a smoothing or straightening action thereon. In addition due to the curvature of the upper-member and the fact that it is constructed of spring metal, a clamping action is exerted on the film along the entire lengths of'the opposedclamping faces of the frame members. Furthermore, the resiliency of the upper men lber insures a sufiicient pressure between the le 's 17, 18, and sleeveQll, when. the sleeve is slid into engagement with said legs, to prevent accidental releasing ofsaid sleeve during the manipulation the-film and holder. 7

The operation of the device will be readily understood, the film being placed on the lower frame member "i-1 -btween the flanges 1 1, the upper frame member 10 is swung downwardly on its pivotal or hinge connection, and the sleeve 20 is slid longitudinally over the legs 17 to hold the frame members securely clamped together. As the upper frame is broiight downwardly, the rolling contact will tend to smooth out or straighten the film while at the same time the projections '15 will 'pres's'thefilm slightly into the aligning recesses 'lti, thereby hold ing thefihn securely "within the frame.

It will be understood that the details of construction shown and? described aremerely illustrative and that many changes, variations and modifications of the specific embodiment therein disclosed may be resorted to without departing from the spirit of my invention, for example, the shape and arrangement of the projections and recesses, the clamping means for holding the frame members together, the hinge construction and the size and shape of the frame may all be varied as desired.

I claim:

1. A film holder comprising a pair of frame members, means for pivotally connecting said frame members and means to hold said frame members in clamped engagement with a film, one of said frame members being provided with spaced projections and the other with similarly spaced recesses adapted to be brought into co-op crating alignment to produce slight distortions at spaced intervals along said film adjacent to the side edges thereof when said frame members are clamped together.

2. A film holder comprising a pair of frame members, means for pivotally con necting said frame members and means to hold said frame members in clamped engagement with a film, one of said frame members being substantially flat and non-elastic and the other frame member being constructed of spring metal curved to cause a gradual rolling contact between said member and film as said frame members are swung upon their pivotal connection into engagement with said film.

51A film holder com irising a pair of frame members, means for pivotall connect ing said frame members, means to hold said. frame members in cl amped. ei'igagement with a film, one of said frame members being constructed of spring metal curved to cause a. gradi'ial rolling Contact between said INCH];- ber and film as said frame members are swung upon their pivotal connection into engagement with said film, and said frame -members being provided with (IO-Ojflil'dlillg projections and recesses adapted to be brought into cooperating alignment to produce slight distortion at spaced intervals alon said film adjacent to the side edges thereof when said members are in clamping relationship.

4. A film holder comprising a pair of jecting legs, and sleeves slidable longitndinally of said legs to hold said frame members in clamping relationship, one of said frame members being provided with recesses and the other with projections adapted to penetrate said recesses and produce slight distortions of said film at spaced points adacent to the edges thereof when said frame members are in clamping relationship.

6. A film holder comprising a pair of sheet metal frame members, consisting of side and end strips arranged to form a rec- {angular open frame work, means to connect said frame ll'lOllllJOl'S pivotally together along one of said end strips, said side strips being extended beyond the other of said end strips. and sleeves slidably mounted on the extensions of said side strips to clamp said members together.

7. A film holder comprising a pair of sheet metal frame members, consisting of side and end strips arranged to form a rec tangular open frame work, means to connect said frame men'ibers pivotally together along one of said end strips, said side strips being extended beyond the other of said end strips, and sleeves slidably mounted on the extensions of said side strips to clamp said members together, the side strips of one of said frame members being provided with upwardly extending flanges between which the film is adapted to be placed and the side strips of said other member being constructcd of spring metal curved to produm a rolling contact with a film mouiu'cd between said. flanges as said members are lIl'tHlfJfllt into clamping relationship.

A film holder comprising a pair of sheet metal frame men'ibcrs consisting of side and end strips arranged to form :1 rectangular open frame work, means to con,- ncct said frame illCllllltl'S pivolally together along one of said. end strips, said side strips being extended beyond the other of said end strips, and sleeves slidably mounted (iii the extens ons of said side strips to clamp said membr together, the side strips of one of said frame mcmbers'being provided with upwardly extending flanges and the side strips of said other member being constructed of spring metal curved to produce a rolling centatt with a film mounted between said flanges as said mem s are brought into clamping relationship, the strips of one of said frame members being provided at spaced intervals with recesses and the strips of the other of said frame members being provided with similarly spaced projections adapted to penetrate slightly into said recesses for clamping the film securely againstdisplacement.

In testimony whereof I have hereunto set my hand.

JOSEF 'llHEODOBll lVACH'lER.