US1266319A - Winding-key for photographic-film cameras. - Google Patents

Description

W. A. HIDDELL. WINDING KEY FOI-1 PHOTOGRAPHIE FILM CAMERAS.

APPLICATION FILED NOV. 30. I9|5.

Patentd May 14, 1918.

Mmm/2,

W I TNESSES To all whom it may concern Be it known that I, WILLIAM A. RIDDELL,

of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Winding- Keys for Photographic-Film Cameras; and I do hereby declare the 4following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the reference-numerals marked t ereon.

My present invention relates to photography and more particularly to photoool of a film roll. 'A further object of thepinvention is to provide a winding key` mechanism that may be easily and rapidly assembled together and readily attached to the camera body or roll holder casing and the provements and combinations of parts all as will be hereinafter more fully described, the novel features being pointed out in the claims at the end of the specification.

In the drawings:

Figure 1 is an elevation of a fragment of a camera wall provided with a film winding key constructed in accordance with and illustrating one embodiment of my invention;

Fig. 2 is a section on the line 2*2 of Fig. 1 with thekey in operative or winding position;

Fig. 3 is a similar view with the key retracted to inoperative position;

Fig. 4 is a transverse section taken substantially on the line 4 4 of Fi 3;

ig. 5 is a similar -section ta en on the line 5 5 of Fig. 2;

Fig. 6 is a section taken substantially on the line 6-6 of Fig. 2 in the plane of the under face of the cap;

Fig. 7 is a plan view of the socket shell and clutch block with the cover plate removed and taken in section through the spindle, and

Fig. 8 is a collective perspective View ofthe Specification of Letters atent.

Application led November 30, 1915. Serial No. 84,357.

Patented May -14, 191.8.

parts forming the head of the spindle arranged in the order in which they are assembled( Similar reference numerals throughout the several views indicate the same parts.

The general mode of operation of the film winding key is a matter of common knowledge and it is thought not to require detailed description here beyond reference to the fact that the spool engaging portion of the key is thrust into a lilm spool chamber to cooperate with spool and lock 1t in place and turn it and is withdrawn kflush with the inner surface of the chamber to disengage the spool and permit its withdrawal. In the present instance, the camera wall inclosing the film chamber is indicated at 1 and has an aperture 2 extending therethrough and an adjacent recess within which lits a cup-shaped or cylindrical socket shell 4 having laterally turned flanges 5 disposed against the outer face of the camera to secure it in place. At opposite sides the shell is provided with inwardly extending projections 6 which lock into corresponding recesses 7 in the periphery of a cylindrical clutch block 8 and prevent it from turning. j The shank of a spindle 9 extends centrally through the clutch block 8 and shell 4 and recesses 10 at the center of the clutch block contain ball or roller clutches 11 of a familiar type which are urged toward the narrow ends of the recesses by springs 12 t0 allow the spindle to be turned in one direction only.

The clutches just described do not, however, prevent longitudinal or axial movement on the part of the spindle at the inner end of which is a blade or cross piece 13 forming a spool engaging head. This head may be projected beyond the wall 1, as shown in Fig. 2, to coperate with the spool or retracted into the aperture 2, as shown in Fig. 3, by sliding the spindle longitudinally. This longitudinal movement is resisted by a contracting spring ring 14 to prevent a loose movement of the spindle and in the present instance, this ring is carried in an annular chamber 15 beneath a cover plate 16 and between the latter and the clutch block 8. The cover plate holds the ring in fixed position and also confines the clutch block and is secured to the camera wall by screws 17 passing through 4it and also through the flanges 5 of the socket shell 4. When the a recess in the end of the 2 and 5, the ring la cooperates with a peripheral notch or groove i8 on the spindle locks the latter in that pos1- v and yieldingly tion from which it may be withdrawn by an outward pull to ride on the peripheral surface and still otter a rictional resistance.

The outer end of the spindle is preferably enlarged as at 19 and referring more particularly to Fig. 8, this enlarged portion'or head is provided on its outer'ace with a transverse or diametrically extending channel 20 and also with a shallower central recess 2l. The ends oitl the channel form journal bearings for trunnions Z2 on the ends ot' a yoke shape l handle or finger piece that spans the enlarged end of the spindle as shown in Figs. l and 6. A spring plate or washer 2l occupies the recess 2l and is provided with lateral ears that resiliently engage the trunnions These latter are squared or have Hat faces,` as clearly shown in lfig. n and the yielding pressure oi' the ears 25 thereon maintains the handle 2B in either the folded inoperative position oi Figs. l, 2, and 6 or the outstanding operative position oll Fig. 3 and by means of the handle the spindle may be turned or pushed in or pulled out.

l prefer to provide a cap QG to tit over the enlargement 19 of the spindle and inclose the parts associated therewith. l`his cap is also spanned by the handle and has openings "27 to admit the trnnnions lt is held in place at its center by a screw 28 `:assing axially into the spindle and also holding in place the plate 24.

it will be observed that a winding lrey constructed in accordance with my invention is. composed of few and simple parts and is very readily assembledvas one set ot parts are merely dropped into the shell #i and secured beneath the cover plate i6 by the single set of screws 17 while the other group of parts are similarly assembled, one after another, at the end oi' the spindle and then secured beneath the cap 25 by the single screw 28.,

invention l l claim as my key for cameras, the

l. ln a lilrn winding combination with a socket and a Winding stem extending therethrough and provided with handle attaching journals opening toward the outer end thereof, of a yoke-shape handle spanning the said outer end of the spindle and having flattened trunnions cooperating With the journals and a resilient confining plate disposed against the end of the spindle and engaging the flattened trunnions to hold the handle in a definite position.

2. ln a tilrn winding key for cameras, the combination with a socket and a winding stem extending therethrough and provided with a cavity in its 'outer end face and with a diametrically extending channel forming handle attaching journals, of a yokeshaped handle spanning the said outer end of the spindle and having flattened trunnions coperating with the journals, and a confining plate occupying the cavity in the spindle end and provided with ears engaging the iiattened trunnions to hold the handle in a definite position.

3. ln a film winding key for cameras, the combination with a socket and a winding stem extending therethrough and provided with a cavity in its outer end face andwith a diametrically extending channel forming handle attaching journals, of a yoke-shaped handle spanning the said outer end of the spindle and having flattened trunnions cooperating with the journals, a conlining plate occupying the cavity in the spindle end and provided with ears engaging the flattened trunnions to hold the handle in a definite position, a cap also spanned by the handle and having openings t0 admit the trunnions and a single fastener extending axially into the spindle to secure the cap, plate and handle thereto.

llLLlriill/l A. ltlDDELL.

Witnesses FRANK Rien, EnrrH "WATERSTRAAT,

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