US902739A - Phonograph-stopping attachment. - Google Patents

Description

A. KANDALL. PHONOGRAPH STOPPING ATTACHMENT.

APPLICATION FILED AUG. 17, 1908.

Patented Nov. 3, 1908.

fl M m M 8 z FIG. I.

.UNITED STATES ALFRED KAfTDALL, OF FERRYVI'LLE, WISCONSIN.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed August 17, 1908. Serial No. 448,837

The 0 j ect of the invention is to provide aphonograph stopping device that will automatically stop the operating mechanism when the end of each record has been reached.

This and other objects I attain by the novel construction and arrangement of parts illustrated in the accompanying drawing, in which:

Figure 1 is a top view of thewell known cylinder record type of phonographwith my stopping attachment applied thereto. Fig. '2 is a front elevation of Fig. 1. Fig; 3 is a rear elevation of Fig. 1. Fig. 4 is a detail view of the stop-collar which forms one of the main working parts of the'device.

, Referring to the drawing by reference numerals, 1 and 2 designate res ectively 'the' base and frame of a phonograp which .are often cast in one piece, the frame being offset upwardly about at the middle as best shown in Figs. 2and -3.

'The main shaft 3 is journaled in the bearin s 4 and 5 and carries the cylindrical record ho der 6, the screw threaded bar on screw 7 and the pulley 8 driven by belt 9, whichisconnected to the motive power (not shown) underneath the base plate.

Near .the rear edge of. the frame another shaft 10 extends the entire-len' th of the machine parallel to shaft 3 and is fastened at each end to lugs 11 by means of screws 12.

On the shaft 10 slides a sleeve 13 having 3 secured to one end the reproducer-carrying arm 14 and the reproducer 15 with tube 16 to, whlch a horn (not shownlmay be attached.

Said arm has an extension 17 in front of the from it and having a threaded member 21 engaging the threads of the screw 7.

All of the above. mechanism is common in the phonographs now used and said parts also constitute the mechanism that is used in .ward the left of the machine and connection with my stopping device, which I will now be described.

Near the olfset of the frame I provide in the front and rear of the phonograph, bearings 22, in which is journaled a horizontally disposed rock shaft 23 having at its front end a horizontal rocker arm 23 projecting tothe front of it (as bestshown in l igs. 1 and 2). normally vertical. arm 24 (see Fig. 3) to which is secured by rivets 25,a toothed sector 26 engaged by a catch 27 operated by a finger lever 27 5 fulcrumed at 28 to a hand lever 28, which is fulcruI-ned at 29 to the depending radial ar'm 29 of the sector.

The lever 2.8 has pivoted to it at 30 one end of a horizontal controlling rod 31, extending to the left (in Fig. 3) and'ha'ving its other end bent at an an le and formed into a collar 32 loosely encircling the shaft 10 to slide thereon. In Fig. 3 it is clearly shown that-the collar 32 islocated at a point 0 osite to the end of the wax cylinder 33 s own in dotted lines). Should the cylinder be shorter or longer or the ieces to be reproduced are of different lengt s as can be seen by looking at the sound producing spiral grooves in the cylinder, the collar 32 is broughtto a point 0 posite the end of the cylinder or piece by arallel to The rear-end of said shaft 23 has a short p acing the lever 28 with its'catch 27 in a its extremity provided with 'a vertical groove or notch 34, adapted to engage the common hand-o eratedstopping lever 35., which is ivote underneath the base. -Said stopping ever whenpushed to the left sets the motive powerin operation (by means not; shown)- and'the belt or or the pulley 9 turns the shaft 3 and thereby the screw 7 and the cylinder 6.

The screw threads being engaged with the member 21, cause the sleeve 13 and its parts, including the reproducer16 etc;, to move toward the right (1n Figs. 1 and 2) until the end 36 of the sleeve 13 takes against the collar 32.

-By the time this takes place the music piece has come to an on but the sleeve'contmues to move thereby p lling on rod 31, which in lever 35, allowing a spring 37, connectedwith. the lever 35 and any suitable place'near the front bearing, to pull the lever 35 tothe po- I place at the end of either long or short rec- I claim' is:

verse osition to the line of movement of the sition 35 (see Fig. 2) thereby stopping the motor; and by means of the lever 28, rod 31, collar 32 and sector 26 the stopping takesords, as already above explained. Swinging on a pivot 39 in the frame is a bearing 38 normally supporting the end of the shaft 3.

Having thusdescribed my invention, what 1. In a phonograph and mounted on they frame thereof, a rock shaft arranged in transstarting lever of the machine in operative position, and a spring arranged to pull the starting lever lnto idle position when the horizontal arm is disengaged therefrom. v

2., In a phonograph and mounted, on the I frame thereof, a rock shaft arranged in transverse osition to the line of movement of the repro ucer-,a vertically disposed rocker arm on the rock shaft, an operating rod pivotally connected therewith and having a guided portion adapted to be engaged by the member of the machine carrying the reproducer, also a horizontally disposed rocker arm on saidshaft and adapted to normally hold the starting lever of the machine in operative position, and a spring arranged 'to ull the starting lever into idle position w .1en the horizontal arm is disengaged therefrom, and adjusting means in the connection between the vertical rocker arm and the operating rod, for the variation in the lengths of records played. 1

In testimony whereof I in presence of two witnesses.

ALFRED RANDALL.

Witnessesz v MARIA TOWER, MARY TOWER.

affix my signature,..

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