US2148009A - Film drying device - Google Patents

Description

Feb. 21, 1939. J. M. BING FILM DRYING DEVICE 2 Shets-Sheebl Filed D96. 23, 1936 INVENTOR Hooeph m. $1113 ATTORNEYS .2 Sheets-Sheet 2 J. M. BI NG FILM DRYING DEVICE Filed Dec. 25, 1936 IIIIIIII I I II IIIII Feb. 21, 1939.

lNVENTOR gmeph mu$i1 g BY ATTORNEYS Patented F eb. 21, 1939 UNITED STATES FILM name DEVICE Joseph M. Bing, New York, N. Y., assignor to Photo Marketlngcorporatlon, New York, N. Y., a corporation of New York e Application December '23,- 1936, Serial No. 117,413

1 Claim. (01. 15-210) My invention relates to a new and improved moisture remover.

One of the objects of my invention is to provide a device which can be readily used for drying photographic films and other articles, without' injuring the same. a

The-invention can be used for drying photographic plates, photographic papers, copper plate papers, water color boards, etc.

Another object of my invention is to provide; a device of this character, which includes one'or more absorbent members orsponge members, said sponge members being made of absorbent viscose material.

5 Another object of my invention is to provide a device whereby the surface water or other moisture can be removed quickly and thoroughly from the surfaces of photographic films. ;Whenever I refer to photographic films,- it is to be'understood that I include glass photographic plates and. photographic papers and the like which must be dried thoroughly so as to remove surface moisture, during the various processes of photography or photographic printing.

Another object of my invention is to provide a device whereby surface moisture can be completely removed from the emulsion-faces of photo graphic films, photographic plates or the like, and Y also from'the backs of said films, plates orthe like, both negatives and positives. 1

Another object of my invention is to provide a device whereby the surface moisture can be removed simultaneously from the fronts and backs of negativesor positives, either films'or plates or the like.

Another object of my invention is to provide a device which can be used when the prints are lying flat on a surface.

Another object of my invention is to provide a a .device whereby theabsorbent members can be easily squeezed so as to remove surplus moisture, without wringing or twisting said absorbent members, and this is a very important feature of the invention. Other objects of my invention will be set forth in the following description and drawings which illustrate a preferred embodiment thereof, it being understood that the above statement of the objects of my invention is intended generally to explain,

the same without limiting it in any manner.

Fig. 1 is a perspective view showing one method of using the device, so as to dry both sides of a photographic fllmor the like. Fig. 2 is a perspective view showing how the a frame members can be pressed towards each other, so as to squeeze surplus moisture out of the absorbent members. 1

Fig. 3 is a perspective view showing another method of using the device, whereby surface moisture can be removed from a photographic film or plate or the like, which is lying upon a flat surface.

Fig. 4 is a perspective view of the device, in one of its positions.

In this position the device can be placed upon a 1 suitable support, so as to permit the absorbent members to dry.

Fig. 5 is a perspective view showing another method of drying the absorbent members, by hanging one of the frame members from a hook 15 or the like.

Fig. 6 is a central sectional view, partially in elevation.

Fig. 7 is a view similar to Fig. 6, but showing the frame members, directly adjacent each other Y20 and back to back, instead of being separated by the absorbent members as ,in'Fig. 6.

- Fig. 8 is' a sectional view on the line 88 of Fig. 6. 1

Fig. 9 is' a sectional view on the line 9-9 of 25 Fig. 6. 1

Fig. 10 is a partial rear view showing the link or hinge connection between the frame members of the device. I

In many graphic arts, and most particularly in 30 photography, it is of great importance to remove quickly and most thoroughly the surface water or moisture from plates, films, etc. For example, in the photographic art, and whenever gelatinous emulsions are used on glass plates or films or. 35 papers, it is necessary to remove the surface water, as otherwise globules of water remain on the films while they dry, thus causing objectionable markv ings on the films.

dry unequally when they are wound up, if said 45 film strips were dried only on one side.

Likewise it is desirable to provide 'a device whereby both sides of the film or like can be dried with the use of one hand, so that the other hand of the operator may steady the lower free end of the stripof film. 1

Likewise it is frequently necessary to dry prints while the prints are lying flat. upon a hard planar surface, and under such-circumstances a single absorbent member can be used. u

- sirable to subject such sponges or absorbent memhere to any twisting or wringing action, because any such twisting or wringing action tends to tear down the fiber and to destroy the viscose sponge. This is also true if a natural sponge or a rubber sponge is used, instead of a viscose sponge.

Referring to Fig. 1, the device comprises two frame members I and la, made of any suitable rigid andwaterproof material, such as Celluloid, or Bakelite", or suitably treated wood or the like.

Fig. 1 shows a pair of these frame members i and la, and said frame members have external recesses 2 and is, for convenience in handling. As shown in Fig. 6 for example, said frame members also have internal messes, and sponge members B are seated in said recesses, and said sponge members are connected to the inner walls of said recesses, by any suitable adhesive. For convenience, the device will be described relative to the positions shown in Fig. 1 and in Pig. 4, although the device may be used in a plurality of positions.

As shown in Fig. 6 and in Fig. 7, the frame members I and la are provided with extensions having enlarged ends. Each extension of the frame member is is forked, and a pair ofspaced link members I are pivotally connected by means of a pivot pin 30 to each extension of the frame member la.

As 'shown in ,Fig. 10, each extension of the frame member i is similarly forked, and a single link in is pivotaiiyconnected to each extension of the frame is, by means. of a pin I. Said link do has its end located between the adjacent pair of links I, and pivotal connection is provided between each link la and the adjacent pair of links I, by means of a pivot pin l. This construction is clearly shown in Fig. 10.

As shown in Fig. 10, spacing washers W areprovided, in order to maintain the links in proper alignment. Fig. 1 shows'how a strip of film I" can be dried on both faces thereof, by bringing the sponge members 8 in contact with both faces of said film, and then moving the device relative to the film P.

While this is being done, the devicecan be held and manipulated with one hand of the operator, and the other hand of the operator, can steady the lower or free end of the film, which can be suspended from any suitable support.

Fig. 2 illustrateshow the frame members I and la can be pressed towards each other, so as to remove surplus moisture from the sponge members 8, by direct pressure perpendicular to the frames l and id, and without subjecting the sponge members B to any twisting or wringing action. The

sponge members can be squeezed with any desired force, in a direction perpendicular to the contacting faces of said sponge members. This is much superior to prior devices in which the backing members of the sponges were connected by leaf springs, so that the squeezing action could.

not be exerted uniformly and reliably.

Pig. 3 illustrates the flexibility of the hinge provided with holes I and la. Fig. 4 shows how the device can be placed upon a suitable support or table, with the sponge members held vertically and spaced from each other, in order to permit. said sponge members to dry.

rig. 5 shows how the device can be suspended froma hook B, so as. to permit the sponge members to dry.

Fig. 8 and Fig. 7 illustrate the flexibility of the pivotal connection between the frame members so that said frame members can be placed backto-back, as shown in Fig. '1, when it is desired to dry only one'side of a film or print.

In the preferred embodiment of my invention, the absorbent members have planar faces which are parallel to each other when the holding frames for said absorbent members are in the parallel position illustrated in Fig. 2.

Hence, when the squeezing action is exerted as illustrated in Hg. 2, the adjacent faces of the absorbent members contact continuously from the beginning of said squeezing action to the end thereof, so that the squeezing action is exerted uniformly upon all parts of the absorbent members, without any twisting or wringing action.

I have shown a preferred embodiment of my invention, but it is clear that numerous changes and omissions could from its spirit.

I claim: A device for drying films or the like, said device comprising a pair of frame members, each be made without departing said frame member having a recess in any inner I face thereof, each said frame member having an absorbent member located in said recess and connected to the inner wall thereof, each said absorbent member projecting beyond said recess, each said frame member also having an outer face, each said frame member having a pair of equally spaced recessed extensions, each of said extensions having a link whose inner end is located in said recessed extension and pivotally connected to said extension and whose outer end is pivotally connected to the outer end of the corresponding link which is carried by the oppositely disposed one of said equally spaced extensions,

said outer face of each ofsaid frame members and its associated pair of extensions lying in a common plane, whereby said frame members are movable relative to said links to a position in which said absorbent members can be contacted with each other under pressure, and said frame members are also movable relative to said links to a position in which the outer faces of the frames and extensions abut each other in saidcommon plane.

' JOSEPH M. BING.

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