US665691A

US665691A - Photographic-roll holder.

Info

Publication number: US665691A
Application number: US68275598A
Authority: US
Inventors: John A Mosher
Original assignee: Adams and Westlake Co
Current assignee: Adams and Westlake Co
Priority date: 1898-06-06
Filing date: 1898-06-06
Publication date: 1901-01-08
Anticipated expiration: 1918-01-08

Description

No. 665,698. Patented lan. 8, |90l. J. A. MUSHER.

PHOTOGRAPHIE ROLL HOLDER.

(Application med .man e, 159s.)

(No Model.)

Wt mais/e5' l d@ UNIT-ED STATES PATENT OFFICE.

JOHN A. MOSl-ER, CF CHICAGO, ll'iLlNOlS, ASSIGNOR TO THE ADAMS & WESTLAKE COMPANY, .OF SAME PLACE.

PHOTOGRAPHlO-ROLL HCl-DER..

SPECIFICATION forming part of Letters atent No. 665,691, dated January 8, 1901.

Application filed June 6, 1898. Serial No, 682,755. (No model.)

To @ZZ whom it may concern:

Be it known that l, JOHN A. MOSHER, a citi- Zen ot' the United States, and a resident of Chicago, county of Cook, and State of illinois, have invented certain new and useful improvements in Roll-Holders, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof, and in which- Figure l is a rear elevation of the rollholder, partly in section, with its back plate removed. Fig. 2 is a sectional view on the line 2 2 of Fig. 1. Fig. 3 is a plan View ou the line 3 3 of Fig. l. Fig. iis a detail front elevation of the roll-holder When open. Fig. 5 is a sectional view on the line 5 5 of Fig. 1. Fig. 6 is a detail of a part of the roll-holder. Figs. 5 and 6 are drawn upon a larger scale than the remainder of the figures.

The invention relates to roll-holders for that class of hand-cameras in which the sensitized medium is inclosed within a lightproof case 'having a hinged cover and in which mechanism is provided for opening and closing this cover from without the case.

The object of the invention is to provide an improved form of roll-holder particularly for use in connection with this type of can era, but having features also which may be applied to various styles of instruments.

This invention consists in the peculiar form of roll-holder herein shown and described and possessing the various novel features of construction, as hereinafter set forth.

The camera-case A has au openable seotion B, which, as shown,is approximately onehalf ot the top side of the oblong rectangular case, being hinged at h to the remainder of this side of the case and being provided with a suitable clasp for engagement with the rear end o of the case.

The roll-holder C is an oblong rectangular box, preferably made of metal, adapted to fit Within the rearward end of a cameraoase, being provided at its forward edge with lateral wings c, adapted to enter the vertical grooves or ways in the inner faces of the side Walls of the case. The rearward side C of the roll-holder is provided with a continuous Iiange adapted to frictionally engage the body portion, and the front wall D of the rollholder,being the supporting-plate for the sensitized ilm, has at each end a vertical slot through which the film F passes, and immodiately back of each of these slots is located au antifrictiou-roller E E', over which the film is turned. rThe film F is placed within the roll-holder upon the spool G and is transferred to the spool H, also mounted within the rol l-h older, by being passed over the outer surface of the plate D.

The front of the roll-holder is provided with a cover J hinged across its lower edge to the lower edge of the roll-holder, as indicated at j, and provided with a continuous flange J at its edges, turned inwardly toward the face of the roll-holder, the hinge-platej being extended downwardly beyond the lower edge ol the cover. The plate Dis provided with a continuous groove d near its edges, adapted to receive the flange J, so as to make therewith a lighttight joint. The upper edge of the plate D is turned forwardly and is provided with beaded portions, as shown at d', with which cooperate friction-clasps J 3, formed upon the upper end of a plate J2, secured to the outer face of the cover J across its top edge, this plate being provided with a thumb-piece J5, by which it may be conveniently opened. The ends of the plate J2 project beyond the edge of the cover J, as shown at J 4, so that when the roll-holder C is inserted within a camera-case, its wing-pieces c sliding within grooves or ways in the side walls, the projections Jl afford means for engaging' with suitable opening mechanism of a camera.

The roll-holder .is so constructed that the spools upon which the films now in general use are sold may be mounted within it. These spools are usually provided with central end sockets to receive trunnions fixed within the roll-holder. Such a trunnion gis set in the top of the case C to engage the upper end of the spool Gr. Preferablya friction-plate g is fixed upon the trunnion c/ The upper end of the spool l-l is engaged by a similar trunnion m, being the prolongation of a stud-shattjournaled in the top ot' the case C and carrying a ratchet-wheel M, with which cooperates a pawl C, held to the ratchet-wheel by the spring o. Means are provided for positively IOO interlocking the ratchet-wheel and spool H, so that they will rotate together. As shown, this is accomplished by locating studs m of any desired number on the disk face of the wheel M, so that they will engage the end of the spool. The lower trunnion p for each spool is mounted upon a plate P, carried by a sleeve p, mounted loosely upon a post Q, firmly set in the top and bottom of the case C. A contracting-spring q is wound upon the upper end of each of the posts Q and secured atits upper end to the post and at its lower end to the sleeve pl, so that it draws the plate P upwardly. A stem P projects backwardly from each of the plates P and is held under a guide or retaining plate R, secured to the bottom of the case C and resisting` the pull of the spring q. The plate R is provided with a recess r for each of the stems P, so located that these stems enter them when the plates P are swung to such position that the trunnions p, carried by them, are in line with the trunnions g m, respectively. The recess r is of such depth that it allows the plates P to bear with the full strength of the springs q upon the spools. The spools are readily inserted within the roll-holder by swinging the plates outwardly to the position shown by dotted lines in Fig. 3, placing the spools upon them and turning them back into the case. As the stems P enter the recess r the plates P rise and bring the spools into engagement with the upper trunnions. The recess r serves the further purpose of preventing accidental angular movement of the plates P. The upper end of the shaft m carries a turn-button iN by means of which the spool H may be rotated to transfer the film from the spool G. The ratchet and pawl M O prevent the reverse motion of the spool H, and the friction of the spool Gr upon the spring-controlled plate P, supporting it, and the plate g provides for the necessary tension of the film.

Any desired means forindicating the movement of the iilm may be employed. The most approved method of mounting films now in vogue is that in which there is employed a backing of opaque material interrolled upon the spool with lm, and upon this backing indicating` characters for the several sections of the film are plainly marked. In order to expose these characters to the view of the operator,there is provided an observing-aperture in the plate J and another in the top of the case C, as shown at S, and these are connected by a tube s, so that as the turn-button M is rotated the character marking the next section of the film to be brought to the position of exposure may be readily seen.

I claim as my invention- 1. In a roll-holder, a case adapted to contain a pair of spools and having a plate D over which a film may be drawn for exposure, such plate and one of the walls of the case perpendicular thereto each having an observingaperture, opaque walls inclosing the line of vision from one of said apertures to the other, and a hinged cover for the plate D.

2. ln a roll-holder, the combination with a case, of a fixed trunnion mounted within the case for receiving one end of a film-spool, and a friction-plate for receiving the opposite end of the spool and being pivotally mounted in the case to swing in the plane of its frictional bearing-face.

3. The combination with a roll-holder case, of a iixed spool-receiving trunnion mounted within the case, a lixed post parallel with the tru nnion, a sleeve mounted to slide and rotate upon the post, afriction-plate carried by the sleeve for cooperating with the fixed trunnion to hold the spool, and a spring for forcing the plate toward the trunnion.

A. The combination with a roll-holder case, of a fixed spool-receiving trunnion within the case, a swinging friction-plate for engaging the opposite end of the spool, and being adapted to slide longitudinally upon its pivot, and a spring for forcing the plate toward the lixed trunnion.

5. The combination with a roll-holder case, of a rod within the case, a sleeve mounted upon and in sliding engagement therewith, a friction-plate for carrying a film-spool and having a stud upon which the spool may rotate, such plate being capable of an oscillating movement about the rod, a stem projecting radially from the sleeve, a guide-plate for such stem and having a lateral recess, a spring acting upon the sleeve in opposition to the guide-plate, and a trunnion mounted within the case for cooperating with the frictionplate to hold the spool.

6. ln a roll-holder, the combination with a case, of a pair of oscillating plates for supporting the film-spools, a fixed trunnion for receiving 'the upper end of the deliveringspool, a rotatable trunnion for engaging and interlocking with the receiving-spool, and being controllable from without the case, and springs for forcing the oscillating plates upwardly.

7. ln a roll-holder, the combination with a case, of a pair of posts set across the interior of the case, a sleeve mounted loosely upon each post, a supporting-plate projecting radially from each sleeve and adapted to rotatably carry a iilm-spool, a stem projecting from each plate, a fixed guide-plate foreach stem, and having a lateral recess, studs mounted within the case to cooperate with the supporting-plates for carrying the spools, and springs forcing the plates toward the studs.

JOHN A. MOSHER.

Witnesses.:

Louis K. GILLsoN, HESTER B. BAIRD.

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