US949450A - Film-roll holder. - Google Patents

Description

J. H. SGOTCHMER.

FILM ROLL HOLDER.

APPLICATION FILED APR. 21, 1909.

949,450. Patented Feb. 15, 1910..

2 SHEETSSHEET 1.

AHLWIEW a. GRAHAM 00. mo'rovlllmosmmms. WASHINGTON, 04c

J. H. SOOTGHMER.

FILM ROLL HOLDER.

APPLICATION FILED APR. 21, 1909.

949,450. I Patented Feb. 15, 1910.

,2 SEEBTS-SHBBT 2.

mnqzw a. GRANAM c0. PHOTO-LITHOGMPMRS. WASHINGTON, o. c.

JOHN H. SCOTCHMEH, OF CHICAGO, ILLINOIS.

FILBLROLL HOLDER.

Specification of Letters Patent.

Application filed April 21, 1909.

Patented Feb. 15, 1910.

Serial No. @91320.

To all whom it may concern:

Be it known that I, JOHN H. Scoroinunn, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and. useful Improvements in Film -Roll Holders for Cameras, of which the following is a specification.

My invention relates to photographic cameras and more specifically to an improved film roll holder for such cameras adapted to beused interchangeably with an ordinary dry plate holder of equal dimensions.

The object of my invention is to provide a holder of the character mentioned in which the sensitized side of the film in passing through the same will be subjected to the least possible amount of friction, hence reducing the possibility of injury to such surface to a minimum.

A further object of my invention is to provide a film holder as mentioned which will be readily manipulated and which will not be susceptible to readily becoming inoperative; it being further my object to pro vide a device which will. be durable and simple of construction.

Other objects will appear hereinafter.

With these objects in view my invention consists in a film roll holder characterized as above mentioned and in certain details of construction and arrangement of parts all as will be hereinafter fully described and particularly pointed out in the claims.

My invention will be more readily understood by reference to accompanying drawings forming a part of the specification, and in which,

Figure 1 is a front elevation of my holder in its preferred form, Fig. 2 is a longitudinal section thereof taken on the line a? of Fig. 1, Fig. 3 is a slightly enlarged transverse section taken on the line y y of Fig: 2, Fig. 1 is a sectional front elevation taken on substantially the line .2 of Fig; 2, Fig. is a section on line o-'v of Fig. 4, Fig. '6 is an enlarged detail perspective of the lower corner of the holder showing the sighting aperture provided therein, by means of which the position of the film in the holder may be ascertained, and Fig. 7 is an enlarged detail sectional view taken on the line w w of Fig. 1.

Referring now to the drawings 1 indi cates the body or framing of my device comprised in which are similarly formed side members 2 and top and bottom end members 3 and 4t respectively, said parts being secured together in any suitable manner to form light tight connections. Secured to the front edges of the side members 2 and end member 4:, the same being of a width such as to project slightly inwardly therefrom, are strips 5 in the inner edge of each of which is formed a longitudinally extending slit 5. Closing the upper'end portion of the body 1, the extremities thereof being secured to the inner edge surfaces of the side strips 5, are parallelly extending rectangular members Said members are slightly spaced apartfor the snug reception of a removable opaque slide 7 the peripheral edges of which are adapted to engage the slits 5 in the strips 5, said slide being adapted when positioned in the frame 1 to entirely close the film exposure opening 8, the latter be ing bounded by the strips 5 and the member 6, and to positively shut off the penetration of light rays to the interior of the holder through said opening. The back of the body 1 is formed removable, the same being preferably held in a countersink 10 formed for the snug reception thereof in the rear edges of the side members 2 and in the members 3 and l, by screws, turn buttons or other suitable means, an effectual light tight connection being obviously effected by such construction.

Rotatably mounted in the enlarged chamber 11 formed at the upper extremity of the body 1 are parallelly disposed removable spools 12 and 13 of any ordinary or preferredv design upon which is coiled the film strip let to be passed through the holder, said strip in passing through the latter being uncoiled from the paying out spool 13 and coiled upon the receiving spool 12. The bearings for each of said spools are preferably comprised of a stationary stud shaft 15 inwardly projecting from one of the side walls 2, and a shaft 16 rotatably and re ciprocally mounted in the other of the walls 2, the latter of said shafts being flattened at its inner extremity, such extremity being adapted to enter a correspondingly shaped or elongate recess provided for the reception thereof in the extremity of the spool. With such construction by rotating the shaft 16, such rotation being effected by means of a finger piece 16 provided at the outer eX- tremity of each of said shafts, the spool will also be rotated. Upon desiring to remove the spool, its shaft 16 needs only to be withdrawn until the extremity thereof disengages the former. In order to normally hold the shafts 16 in engagement with their respective spools leaf springs 17 are provided. Each of the latter resting in engagement with a disk 18 fixed to each of said shafts and a circular housing 19 incasing the same, yieldingly holds said shaft at the inner extremity of its movement. Said springs also act, because of their frictional contact with the disks 18, as a means whereby the film strip may be held tightly stretched across the exposure openin The peripheral portion of the inner side of each of said disks 18 is provided with a series of radially disposed ratchet teeth 20 the same being adapted to engage or interlock with coacting teeth 21 provided in the peripheral portion of the outer surface of a disk 22 secured to the body 1, the latter being, as shown, preferably provided with a circular seat for the reception thereof. Such disks evidently serve as a clutch permitting rotation of each of said spools in one direction only, such provision being made for obvious reasons.

Having its lateral edges suitably secured to the inner surfaces of the side members 2 is a longitudinally extending partition or film support 23 around the lower extremity of which the film strip 1 1 passes in its passage through the holder. The upper end portion 24: of said partition is curved rearwardly dividing the chamber 11 into individual chambers 2525 occupied respectively by the spools 12 and 13. Positioned at the lower extremity of the partition 23 is a roller 26 the extremities of the shaft 27 of which are suitably j ournaled in the frame sides 2. 28 indicates a preferably felt covered roller the extremities of the shaft 29 of which are j ournaled in the frame sides 2. Said roller is provided with such covering because of its contacting the sensitized side of the film in the passage of the latter through the holder, hence such provision is made to prevent injury of that side of the film.

In order to permit of the operator inspecting markings or indications provided at intervals upon a strip of film or the usual opaque covering accompanying the latter, I provide an aperture 30 in one of the lateral edges of the holder communicating with the edge of the film strip or covering thereof, as the case may be. Traversing the inner extremity of said aperture is a colored glass (preferably a ruby glass) or other similar transparent material 31. lVith such provision the operator may readily ascertain the exact position of the film relative to the exposure opening of the holder.

IVhile I have shown what I deem to be the preferable form of my device, I do not wish to be limited thereto as there might be many changes made in the details of construction and arrangement of parts without departing from the spirit of my invention comprehended within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patent is 1. In a film roll holder, the combination of a framing having an exposure opening in its front side, an enlarged chamber formed in the upper portion of said framing, means for removably mounting a paying out spool and a receiving spool in said chamber, a film strip support positioned rearward of said exposure opening and having its upper extremity terminating intermediate said spools, and a removable back for said framing, substantially as described.

2. In a film roll holder, the combination of a framing having an exposure opening in its front side, an enlarged chamber formed in the upper portion of said framing, means for removably mounting a paying out spool and a parallelly disposed receiving spool in said chamber, individual clutch means operatively connected with each of said spools for preventing reverse rotary movement thereof, a longitudinally extending film support having its upper extremity terminating intermediate said spools positioned rear and of said exposure opening, and a removable back for said framing, substantially as described.

3. In afilm roll holder, the combination of a framing having an exposure opening in its front side, a removable slide adapted to close said opening, an enlarged chamber formed in the upper extremity of said framing, means for removably mounting a paying out spool and a receiving spool in said chamber in vertical alinement with each other, a longitudinally extending film strip support positioned rearward of said opening and having its upper extremity curved rearwardly and terminating intermediate said spools, a roller provided adjacent the lower extremity of said support, and a second roller positioned adjacent the lowermost of said spools and the rearward side of said film strip support, substantially as described.

4. In a film roll holder, the combination of a framing having an exposure opening at its front side, a removable slide adapted to close said opening, an enlarged chamber formed in the upper extremity of said framing, means for removably mounting stud shafts provided in the lateral walls of said chamber, a paying out spool and a receiving spool upon said stud shafts, one of said shafts of each of said rollers being rotatably and slidably mounted in said chamber walls,

an operative connection between said last named shafts and said spools, a ratchet clutch device cooperative with each of said last named shafts whereby said spools are normally locked against reverse rotary movement, and a rigid film support positioned rear ard of said exposure opening having its upper extremity. terminating inten mediate said spools, substantially as described.

5. In a film roller holder, the combination of a framing having an exposure opening in its front side, means for removably mounting a paying out spool and a receiving spool in the upper end portion of said framing, a longitudinally extending film strip support positioned rearward of said exposure opening and having its upper extremity terminating intermediate said spool mounting means, means whereby said receiving spool may be rotated to draw a film strip over said film strip support from said paying out roller, said framing having an aperture in one of its lateral edges communicating with the front surface of said support, whereby the lateral edge of a film strip passing over said support may be viewed from without, and a transparent plate traversing said aperture, substantially as de scribed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN H. SCOTCHMER.

Vitnesses JOSHUA R. H. Po'r'rs, JANET E. HOGAN.

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