US1204859A - Brake for talking-machines. - Google Patents

Description

BRAKE FOR TALKINGMAGHINES. APPLICATION 511120 AUG. 15, 1914.

1 1 20%., 59. Patented Nov. 14, 1916.

WILLIAM F. GRUPE, F JERSEY GITY,.1\TEW JERSEY, ASSIGNOR TO VANOPHONE COMPANY, INC.

BRAKE FOR TALKING-MACHINES.

Specification of Letters Patent.

Patented NOV. 14, 1916,.

Application filed August 15, 1914. Serial No. 856,914..

' citizen of the United States of America, and

residing at Jersey City, county of Hudson, State of New Jersey,have made certain new and useful Improvements in Brakes for Talking-Machines, of which the following is a specification. I

This invention relates to brakes for talking machines, phonographs and the like.

An object of my invention is to provide suitable mechanism for automatically braking the rotating table of a talking machine, phonograph or the like, and preferably by suitable provision of means whereby the rotating table is arrested when the movable arm is moved to its off or non-playing position, and to release the brake when the movable arm is moved from its oil or non-playing position. Also, preferably such provision of means comprises an extension or projection cooperating with the braking member and serving to support the movable arm when in such off or non playing position. In such preferred forms of my, invention, the movable arm is provided with reliable means for supporting the same when in such off or non-playing position and the weight of the movable arm is utilized to advantage in maintaining the braking member in its braking position.

Other features and objects of my invention will be more fully understood from the :following description and accompanying drawings, in which a ,Figure 1 is a top plan view of one form of my invention; and Fig. 2 is a detail front elevation of the movable arm and extension carried thereby and certain other parts shown in Fig. 1.

Referring to Fig. 1, the movable tone arm 12 is shown as mounted onto a hollow standard or socket 14 projecting upwardly above the base or support 1. Preferably. such mounting is constructed to permit swinging of the tone arm in a substantially horizontal plane and to also permit to a limited extent .oscillatory movement of the tone arm transversely to the horizontal plane. To effect such movement, the tone arm may be provided with the oppositely disposed, laterally extending circulariugs-lfi. 15, adapted to be aeceived within the annular groove 16 distosed within the standard or socket 14. The

portion of the tone arm 12 circumferentially adjacent said lugs 15 is preferably spheroidal or otherwise curved and the diameter of each said lugs 15 is slightly less than the width of said groove 16, whereby to permit the conjoint horizontal and vertical movement of the tone arm 12.

One or more slot openings 18 may be provided for securing the entry of each lug 15 into the annular groove 16, as will be understood, and the partial slots 17 extending lengthwise of the standard or socket let may be provided for purposes of imparting re- 'siliency to the upper portions of the standard or socket 14. v

The extension or projection 11 is shown as carried rigidly by the swinging arm 12 and extending substantially transverse to the direction of length of the" swinging arm 12. The step 13, preferably having the inclined approach 19, is provided to support the extension or projection 11 when the swinging arm is in its off or non-playing provided with the extension 27 carrying a hooker other eccentric means cooperating with said projection or extension 11 whereby when the swinging arm 12 is in off or non-playing position, said braking member 25 is moved intobraking position. The braking member 25 is *alsoshown provided with resilient means, such as the spring 28, normally tending to move the braking member into non-braking position. The stop 29, shown carried by the braking member 25, limits the movement of the braking member from its braking position. The braking member 25 is shown mounted within the guide or sleeve 30, fixed to the base or support 1. Thus, as the swinging arm 12 is moved into its off or non-playing position, the extension or projection 11, in eccentric relation to the hook of the extension 27 causes the braking member 25,, in opposition to the resilient means 28, to move into braking position, and upon movement of the swinging arm 12 from its oil' or non-playing position, the extension or projection 11 is moved free of the hook 27 and permits the spring 28 to move the braking member 25 into its non-braking position, determined by the stop 29 encountering a face of the sleeve 30. When the swinging arm 12 is in its off or non-playing position the extension or projection 11 will have rested upon the step 13.

As will be seen from the above, my invention is advantageous in securing a positive braking and non-braking of the turiitable whenever desired without the use of auxiliary releasing and unreleasing means for braking the rotating table. Also, the-positive and direct support for the. movable arm insures security of the same when in its ofi or other non-playing position.

Whereas I have described my invention by reference to specific forms thereof, it will be understood that many changes and modifications may be made without departing from the scope of my invention.

What I claim-and desire to secure by'Letters Patent is 1. The combination with a base, a rotatable table carried thereby, a swinging arm, a movable brake member adapted when in braking position to engagevsaid table, re-

silient means for normally drawing said. braking member from engagement with said table, an eccentric element carried by said braking member, a projection controlled by said swinging arm and adapted when" said arm is in a predetermined position to engage said eccentric element to move said bral'ring element into braking position and means cooperating with said projection to support said arm when said arm is in said predetermined position.

2. The combination with a base, of a rotatable table carried thereby, a swinging arm mounted on said base, a movable braking member mountedon said base, resilient means normally moving said braking member in a direction to effect disengagement with said table, astop limiting the movement of said braking member in said direction, a hook carried by said braking member, a projection carried by said swinging arm and adapted to engage said hook when said arm is iii off position and thereby move said braking element into engagement with said table, and means fixed to said base for supporting said projection and thereby support said arm when said arm is in off position.

3. The combination with a base, of a, rotatable table carried thereby, a swinging arm mounted on said base, a reciprocating braking member, means for mounting said braking member on said base, resilient neonate means tending to move said braking-menuber in a certain direction out of engagement with said table, a stop limiting the move ment of said braking member in said certain direction, .a projection carried by said arm and adapted to engage said braking member when said arm is in a predetermined position and move said braking member in opposition to said resilient means into engagement with said table and means in fixed relation to said base for supporting said projection and thereby supporting said arm when said arm is in said predetermined position.

4. The combination with a base, of a rotatable table carried thereby, a swinging arm, means for mounting said swinging arm onto said base, a movable braking member adapted to reciprocate in the direction of its length, a sleeve mounted on said base and controlling the movement of said braking member, a pad at one end of said braking member adapted to arrest said table when said braking member is in braking position, resilient means tending to move said braking member in a certain direction out of braking position, a stop limiting the movement of said braking member in said certain direction, a hook carried by said braking member, a projection extending downwardly from said swinging arm and adapted when said arm is in off position to engage said hook and move said braking member into braking position and means cooperating with said projection to support said-arm when said tone arm is in off position.

5. The combination with a base, of a rd tatable table carried thereby, a swinging arm, means for mounting said swinging arm Onto said base, a braking member formed of a straight arm, a friction pad carried at one end of said arm, a hook positioned at the opposite end of said arm, a sleeve enveloping said arm, resilient means tending to move said arm out of braking position, a stop carried by said arm, a projection extending from said swinging arm and adapted to engage said hook to move said. braking member into braking position. when said arm is in 0E position and means coiiperating with said projection to support said arm when in off position.

6. The combination with a base, of a rotatable table carried thereby, a swinging arm, means for mounting said arm on said base, a braking member, a pad carried by said braking member and adapted to arrest said table when said braking member is in bralringposition, an element carriedby said arm and adapted when said arm is in off position to move said braking member into braking position and means for supporting said arm when in off position.

7, The combination with a base, of a? rotatable table carried thereby, a swinging arm, means for mounting said swinging arm onto said base, a braking member, a pad carried by said braking member and adapted to arrest said table when said braking member 'is in braking position, a cam carried by said swinging arm and adapted when said swinging arm is in ofi' position to move said braking member into braking position and means for supporting said swinging arm when in off position.

s 8. In 'a device of the class described, the COIILbIIIatIOH of a frame, a revoluble record vice being provided with a body portion which is out of the path of movement of the pin carried by the arm, said pin engaging said hook. and operating the locking device to lock the record support when the arm has been moved to a position Where the needle clears the periphery of the record.

9. The combination with a rotatable table, of a swinging tone arm, a base supporting said table, a brake mounted on said base, resilient meanstfiding to move said brake in a certain direction to effect non-braking,

a stop positioned on said base limiting the movement of said brake in said certain dired tion. a hook carried by said brake and a projection carried by said swinging tone arm arranged to engage said hook when said swinging tone arm is in non-pla'yingposition to thereby move said brake into braking Jposi'ti on.

10. The combination with a rotatable table, of a swinging tone arm, a base supporting said table, a reciprocating braking member mounted on said base, resilient means tendmg to move said bral mg member in a certain direction to effect non position.

11. The combination with a rotatabletable, of a swinging tone arm, a base supporting said table, a brake mounted on said base, resilient means tending to move said brake in a certain direction to effect nonbraking, a stop positioned on said base, a stop carried by said brlg ithd adapted to engage said stop on said base to limit the movement of said brake in said certain direction, a hook carried by said brake and a projection carried by said swinging tone arm arranged to engage said hook when said swinging tone arm 1n non-playing position to thereby move said brake into braking 12. The combination with a base, of a rotatable table carried thereby, a swinging arm, a braking member, resilient means for moving said braking member into nonbraking position, a stop limiting the nonbraking movement of said braking means, means carried by said swinging arm for actuating said braking member into braking position and means for supporting said swinging arm when in off position.-

13. The combination with a base, of a rotatable table. a swinging arm carried by said base, a braking member, resilient means for moving said braking member into nonbraking position. a stop limiting the nonbraking movement of said braking means, means carried by said swinging arm for actuating said braking member into braking position and means for supporting said sninging arm when in off position.

it. The combination with a base, of a 1'0- tatable table, a swinging arm, means for mounting said swinging arm onto said base, a braking member,- resilient meansfor-rnovmg said braking member into non-braking position, said mounting means acting as astop to limit the non-braking movement of said braking member, a projection carried by said swinging arm for moving said bra-k ing member into braking position and means for supporting said projection and therewith said swinging arm when in off position.

in testimony whereof I have signed this s ecificat ion. in. the presence of two subscribing witnesses.

WILLIAM F. GRUPE.

Witnesses HENRY J. LUCKE, SOPHIE M. BAEDER.

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