US1426693A - Attachment for phonographs - Google Patents

Description

W. H. WEASER, ATTACHMENT FpR PHoNoGRA'PH's. APPLICATION FILED SEPT. I3. |920.

Patented Aug. 22, 1922.

2 SHEETS-SHEET l.

W. H. WEA-SER. ATTACHMENT FOR PHONOGRAPHS. APPLICATION FILED sEPV i3, 1920A Patented Aug. 22, 1922.

2 SHlETS-'SHEET 2.

TTACHMENT .FOR PHONOGRAPI-IS.

finances.

Application filed September 1 To all whom t may Concern Be it known that l, lVrLLIAM H. Vinasnn, a citizen ot the Unitel States, residing at Pittstield, in the county of Berkshire and Commonwealth of lvilassachusetts, have invented an lmprovement in Attachments for Phonographs, ot which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to phonographs and other sound reproducing instruments wherein niechanical spring motors are employed as the motive agency ior operating the driving mechanism.

The object of the invention is to provide simple and eiiicient mechanism 'for winding up the motor spring by :toot power.

With the foregoing and other objects in view the invention consists in the construction, combination, arrangement and opera tion ot parts as hereinafter described and pointed out in the claims, a specific useful form ot embodiment thereof being herein after described and illustrated in the accompanying drawings, wherein Figure 1 is a longitudinal vertical section of a phonograph cabinet on the line A-A of 2 lookingin thc direction of the arrows, and showing a side view ot my device operatively mounted therein;

Fig. 2, a longitudinal vertical section o1", the same, showing a front edgeview ot my device, a portion of the cabinet being broken away;

Fig. 3, an interior detail plan view of the gear members cooperating with the winding shaft;

Fig. a detail rear edge view ott the same; and

Figs. 5 and 6, detail top and edge views, respectively, of the Jfoot pedal which'is attached to the power lever.

rlhe mechanism oit my device is controlled through the medium vof a pedal 1, whichis conveniently yarranged near the bottom of the phonograph cabinet 2 within reach of the operators foot. As shown, this pedal is pivotally attached to the lower end of a vreciprocating rod 3 arranged in upright position within the cabinet and extending through an opening in the bottom thereof. the ointed relation of the pedal and rod being designed to allowrelative movement ot the pedalin a horizontal plane, so that when at restthe pedal 4may. be swungy underneath Specification of Letters Patent.

Patented nur?. 2i, 1922,

S, 1920. Serial No. 409,751.

the cabinet and out of exposed position. Suitable locking means may be provided to retain the pedal in either the exposed or hidden position, and for this purpose have shown a yielding spring pawl 4 attached to an angle support 5 provided on the lower eX- -tremity of the rod 3 and positioned tol register with suitable notches 6, provided on the rear rim of the pedal and arranged to correspond with its limits ot axial movement.

The rod 3 is guided in its movements by a yoke bracket 7 enclosing the rod and secured to the side wall ot the cabinet near the bottom, the upper extremity ot the rod being pivotally attached to the Yforward end of a transversely arranged lever 8 by suitable terminal members 9, l0, provided thereon and having corresponding tongue and groove formations. Reverse action or upward movement oit the rod 3 is controlled by means of an expansion springv 11 suspended at one end above the rod on the wall of the cabinet and secured at its opposite end to the terminal member 10 of the lever 8. i

The torce supplied by the operators toot is transmitted by indirection through a series oil" cooperative mechanical. members which are designed, arranged. and adapted within the prescribed limits oi space to transform reciprocating into rotary motion for revolving a shat't 12`v which is normally provided within the phonograph cabinet for winding up the motor spring (not shown) to which it is attached. The lever 8, to one end of which the rod 3 is attached. oscillates in the plane of the rod 3 upon a pivot 1 3 secured to the cabinet wall, the portion oi its length between the rod 3 and the pivot 13 being` preferably greater than the .re-- maining portion. Said lever 8 is provided at its opposite end with a head 14, forming a lateral' extension which is pivotally conneeted through a series of jointed transmission rods 15, 16, extending upward to the lower end of an arm 17 provided on a web-gear sector 18 mounted to swing between parallel casing plates 19, 19, secured to the wall of the cabinet near the shaft 1.2. Said rods 15, 16, are disposed normally at a slight angle to each other and pivoted together by means of suitable 'interconnecting heads 20, 21. the opposite extremities of the rods being also provided with heads 22, 23, forming pivotal connections with their corresponding points of support. Said rodsl,

16, are preferably each provided centrally with an angle in their length to form an offset portion to receive a head 24 pivoted to the heads 20, 21, and provided on the lower end of an upright swinging arm 25 which carries at its upper end a head 26 pivoted to a bracket 27 secured to the wall of the cabinet 2. The arm 25 provides a movable point of support for the rods 15, 16, automatically adjusting itself to any position within the limits of the arc of its swing required by the shifting relation of the rods, at the same time operating as a retaining member and. guide for directing the movements of the rods.l

For convenience in attaching my device to the cabinet wall and to properly maintain the bracket 27 and pivot of the lever 8 in fixed relation 1 provide a base in the form of a rigid metal strip 28 upon which these parts are permanently mounted, the strip being preferably extended upward and attached to the inner casing plate 19, thereby permitting the parts mounted thereon and attached thereto to be removed and replaced as a unitary assembly.

' The gearsector 18, which is pivoted between the casing plates 19, is arranged to mesh with a pinion 29 mounted to rotate freely upon a shaft 30 journaled in the plates 19, the hub of the pinion 29 being extended laterally to supportat its opposite end a ratchet 82 which is arranged to engage with a spring-pressed pawl carried-on one side of a gear wheel 34 keyed on the shaft IBO-in adjacent relatie-n to the ratchet 32. Said ratchet and pawl. are so arranged that the downward 'swing of the sector 18,.

operating through the medium'of the pinion 29, causes Athe gear wheel to revolve with the pinion 29,v while the reverse movement of the sector serves to revolve the'ratchet only and does not affect the gear wheel. The gear wheel 34 is arranged permanently in vmesh with a separate gear wheel carried on a shaft 36, which is journaled in the'casing plates 19, 19, and in alignment with'the winding shaft 12. Said shafts 12, 35., are detachably connected preferably by means of a slot 37 provided in one end of the sha t 36 which isv extended beyond the supporting plate 19 and adapted tov receive an extension of correspondingr proportions provided on the outer end of vthe winding shaft. The relative proportions of the pinion 29, the gear wheels 34, 35, and the ratchet 82,-are designed 'to impart to the winding shaft an accelerated speed requiring a comparatively brief interval of time and slight expenditure of energy on the part of the 'operator to `fully wind up the motor spring.

Thereverse or upward movement of the sector 18 is preferably limited by means of a positive stop herein shown inthe form of arilgd 'stud 38 projecting into the path-of the sector arm17 from the Ainner face of one of the casing plates 19.

The structural character and arrangement of the mechanism constituting the connection between the rod 3 and the sector 18 are designed to secure within the limits of the space provided the required leverage and force to wind up the motor spring. The jointed connection and indirection of movement of these parts provide a system of compensation adapted to insure a uniform throw of the sector 18, and to break up and prevent violent or sudden strains and shocks, which otherwise might be imparted to the winding mechanism.

While the primary function of the leve Sis to increase the force imparted thereto by the rod 3, this member also serves in some measure by its angular relation to and jointed connection with the reciprocating` rod to resist sudden. or jerky movements 'on the part of thelatter which would have an injurious effect upon the gears of the winding mechanism and upon the motor appa-- ratus. This latterfuncti'on is more effectively performed, however, by the rods 15, 1G, and arm 25, which cooperate to retard speed whiletransmitting the motive force. The arm 25 is particularly adaptedy yto receive the shocks of'excessivc motion and. to deflect straight line movements in a lateral direction, by which it serves both toV retard speed and to prevent .the elevation ofthe transmission member; to a point beyond the limits of the sectorarm 17. vThe rods 15, 16, together constitute a unitary transmission `member possessing at a central point a joint or elbow which the arm isy a'dapted'to properly flex in order to obtain ,the necessary shortening of the transmission member in lengthwise movement to insure an even and uniform swing of the sector 18.

imong the advantages derived by the use of my device are the comparative ease of operation in preference to the previous practice of winding up the motor spring by hand, and also economy of time wherebythe operator is now enabled during` the winding operation to employ his hands to arrange the music record and stylus.

i I claim:

1. In a device of the classy described, in-

va member for transforming reciprocating motion intorotary motion and arranged to actuate said speed-increasing gearing, a pedal, and a series of pivotally connected members connecting the pedal with said motion-transforming member, including a lever for augmenting motive force applied to the pedal.

3. In a winding attachment for phonographs, a winding shaft, a gei r fired on the shaft, a separate shaft, a speed-increasing gear fixed on said separate shaft and arranged to mesh with the first-mentioned gear, a pinion loosely mounted on said separate shaft, a ratchet mounted to move with the pinion, a pawl carried on said speed-increasing gear and arranged to coact with the ratchet to revolve said gear in one direction only, an oscillating gear member arranged in mesh with said pinion, a pedal, and means for transmittin` motion from said pedal to said gears for rotating the winding shaft.

a. In a device of the class described, a frame for attachment to a phonograph casing, a shaft journaled in the frame and er.- tending through one side thereof into position for attachment to a winding shaft carried by the casing, a gear mounted on said shaft, a separate shaft journaled in the frame, and a speed-increasing gear mounted thereon and meshing with said first-mentioned gear, a pinion loosely mounted on said last-mentioned shaft, a ratchet mounted to move with the pinion, a pawl carried by said last-mentioned gear and arranged to coact with said ratchet to revolve said gearing in one ,direction only, a third shaft journaled in said frame and a gear sector mounted thereon and arranged to mesh with said pinion, said gear sector having a radial er;- tension, means for limiting the movements of the sector, a foot pedal carried by the casing, and series of jointedly connected arms movably connected to the pedal and to said sector extension and including a lever for transmitting motion to the gearing and the winding shaft.

5. ln a device of the class described, a winding shaft, speed-increasing gearing arranged to rotate the winding shaft, and means for transmitting motion to said gearing by foot power including a pedal, a reciprocating rod secured to said pedal, spring means for retracting said rod when actuated by the pedal, a force-amplifying lever mounted to swing in the casing, and pivyotally secured at one end to the inner end of said rod, and series of jointedly connected arms pivotally connected to the opposite end of said lever, and arranged to transmit motion imparted by the lever in an angular direction to said gearing.

6. ln a device of the class described, the combination with a shaft, of means for revolving the shaft by foot power, and including a reciprocating member, a rotary member vmovably connected to said shaft, an oscillatory member movably connected to said rotary member, and transmission means for imparting motion from said reciprocating member to siid oscillatory member whereby said oscillatory member is moved in an even uniform manner, and including a longitudinal member having a joint in its length and means for flexing said l`longitudinal member.

7. In a device of the class described, the combination with a shaft, of `means for revolving the shaft by foot power, and including a rod arranged for reciprocating movement, means for reversing the action of the rod when moved in one direction by a force independent thereof, a lever pivoted to a support and movably secured to said rod, a series of gear members arranged in mesh and adapted when moved to rotate said shaft in one direction, means, including a ratchet and a registering pawl carried by said gear members, for preventing said shaft being reversely rotated, an oscillatory member having au arcuate toothed portion arranged in mesh with one of said gear members, a power transmission member movably connecting said lever with said oscillatory member and including arms arranged end to end, and forming a joint, and means for flexing said power transmission member at said joint to provide a uniform movement of the oscillatory member.

ln testimony whereof, I have signed my name to this specification.

WILLIAM H. WEASER.

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