US811633A

US811633A - Attachment for phonographs.

Info

Publication number: US811633A
Application number: US24254805A
Authority: US
Inventors: Zenas Tarble Grover
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-01-24
Filing date: 1905-01-24
Publication date: 1906-02-06
Anticipated expiration: 1923-02-06

Description

No. 811,633. PATENTED FEB. 6, 1906.

z. T. GROVER.

ATTACHMENT FOB. PHONOGRAPHS. APPLICATION rum: JAN.24. 1905.

wt Ze/zwTG/vveK I nventon. W

Attomgs ZENAS TARBLE GROVER, OF SOUTH NEW BERLIN, NEW YORK.

ATTACHMENT oe HoNoenAPHs.

Specification of Letters Patent.

Patented Feb. 6, 1906.

Application filed January 24, 1905. Serial No. 242,548-

l'o all whom it may concern/.-

Beit known that I, ZENAS TARBLE Gnovnn,

. a citizen of the United States, residing at I ments in phonographs, grapllgplphones, and

es, an more similar sound-producing mac articulajly to a novel form of mechanism or automatically operating the motor-brake after the sound-box has entirely-completed the reproduction of the record.

The object of the invention is to provide a simple, inexpensive, and efficient device of this character capable of being used in connection with any of the well-known forms.

of sound producing and recording machines and which will automatically apply the braketo the motor, and thereby positively stop the latter when the ma-chinehasfinished playing a record.

A further object of the invention is to revide a tri -lever adapted to be on age by the repro ucer-arm to automalica ly ap ly the brake, said trip-lever being provi ed with a lon ltudinally-adjustable in or screw whereby t e device may be set or stopping the actuating-motor at any predetermined time.

V With these and other objects in view the novel combination and arran invention consists in the construction and ement of parts ustrated in the accompanying drawings, and pointed out in theclaims hereto appended, it being understood that various 0 anges in form, proportion, and minor details of construction may be resorted to without departing fronrthe principle or sacrificing any of the advantages of this invention.

In theaccompanying drawings, forming a part ofthis specification, Figure 1 is a perspective view of a phonograph, showing my improved vbrake s applying device applied thereto. Fig; 2 is a longitudinal sectional view of the device detached. Fig. 3 is a transverse sectional view of the same, and Fig. 4 is a detail erspective view of the connecting link an --a portion of the rod detached.

Similar numerals of. reference indicate corproved forms of responding parts in all" the figures of the drawings. The improved brake-applying device may be used in connection with any of the apphonographs or aphoa motor is employe for reciprocating the sound-box carriage, and by way of illustration I have shown the device attached totheweltknown Edison type of machine, in which 5 re 01' stand, 6 the threads traversing or feed shaft, and 7 the sound-box mounted for travel on said shaft over the surface of the cylindrical record 8.

Extending throu h a slot 9 in the cabinet or standis a brake-lever 10, operatively connected with a spring, weight, electric, or other motor, (notshown') the latter be'n arranged within the casing and connected by phones in which resents the cabinet a belt or suitable gearing to. the traversingshaft 6 for moving the sound box carriage over the surface of the record. The several parts 'of the machine above described are of well-known construction and form no part of this invention, the essential feature of which consists of a housing or casing 11, containin the mechanism for automatically applying the brake. The casing 11, which is preferably formed of. a single piece of metal, is mounted on the top of the stand or cabinet to one side of the brake-lever, as shown, and is provided with a laterally-extending flange 12, having a shoulder 13 to accommodate the base 14 of the machine; and one or more openings adapted to receive screws or similar fastening devices 15, by means of which the casing is secured in position on the cabinet. The opposite end walls of the casing are provided with alined openings 16 for the reception of a spring-actuated bolt or rod'1 7, one end of which is flattened laterally, as indicated at 18, while the opposite end thereof is provided with a link 19, which fits over-the free end of-the brake-lever. The link 19 is detachabl secured to the rod 17 andis provided wit an angularlydisposed terminal spring ring or loop 20, which engages a recess 21 in the end of saidzrod, so as to prevent acoidental displacement of the former. Loosely mounted on the rod 17 is a washer or disl i 21 whiclnbears a ainst the flattened portion 18 oftheroci, an mounted onsaid rod and interposed between the washer and one end of loo rev,

the casing is a coil-spring 22, the normal tendency of which is to exert a longitudinal pull on the brake-lever when the link is in engagement therewith. Pivoted within the casing H above the rod 17 is a bell-crank trip-lever 23, the long arm of which extends through a slot 24 in the top of the casing and is provided with a threaded opening for the reception of an adjusting-screw 25, While the short arm of the lever is weighted, as indicated at 26, and adapted to engage a locking-notch 27 in the flattened end of the rod 17 when said triplever is in set position. It will thus be seen that when the free end of the rod 17 is forced rearwardly the short arm 28 of the trip-lever will drop by gravity and engage the notch in the rod 17, and when the sound-box has entirely completed the reproduction of the record the depending arm 29 of the former will engagp the screw and tilt the trip-lever, there y permitting the spring to force the rod 17 forwardand apply the brake to the actuating-motor.

The adjusting-screw is provided at one end with an enlargement 30, adapted to receive the impact of the sound-box, and at the opposite end thereof with a milled head 31, by means'of which the screw may be adjusted to adapt the device for stopping the motor at any predetermined position on the record. The adjustability of the screw 25 is an important feature, inasmuch as the sound-waves reproduced on the record-cylinder terminate at varying distances from the end of, the same, and it is hi hly desirable to stop the motor as soon as t e machine has completed the reproduction of the record in order to prevent injury to the stylus and to obviate the disagreeable rasping sound usually produced w en the motor is allowed to run after finishin the record.

It wil of course be understood that the de vice may be used for applying any particular style of brake and that the same may be poucmg machines'which is operable by the movement of the reproducer-arm toautomatically apply the motor-brake.

Havin thus described the invention, what is claime isv 1. In a phonograph, the combination with a motor-brake, of a feed shaft, a sound-box carriage mounted for travel .on said shaft, a

trip-lever actuated by the sound-box carria e for controlling the brake, and an adjustable impact-pin carried by the trip-lever.

2. In a phonograph, the combination with a motor-brake, of a feed-shaft, a sound box carriage mounted for travel on said shaft, a weighted trip-lever actuated by the soundbox carriage for controlling the brake, and a threaded impact-pin adjustably mounted on one end of the trip-lever.

3. In a phonograph, the combination with a motor-brake, of a feed-shaft, a sound-box carriage mounted for travel on said shaft, a spring-actuated rod connected to the brake and provided with a locking-notch, and a trip-lever adapted to engage the notch in the rod to hold the same in set position, said lever being actuated by the sound-box to release the rod and operate the brake.

4. In a phonograph, the combination with a motor-brake, of a feed-shaft, a sound-box carriage mounted for travel on said shaft, a spring-actuated rod connected to the brake and provided with a locking-notch, and a pivoted bell-crank trip-lever the short arm of which is wei hted and adapted to engage said notch for ho ding the rod in set position, said lever being actuated by the sound-box carriage to release the rod and operate the brake.

5. In a phonograph, the combination with a motor-brake, of a feed-shaft, a sound-box carriage mounted for travel on said shaft, a spring-actuated rod connected to the brake and provided with a locking-notch, a pivoted bell-crank trip-lever the short arm of which is Wei hted and ada ted to engage said notch for holding the rod in set position, and an ad justable impact-pin carried by the long arm of the lever for engagement with the said box-carriage.

6. In a phonograph, the combination with r a motor-brake, of a feed-shaft, a sound-box carriage mounted for travel on said shaft, a casing provided with alined openings, a springactuated rod slidably mounted in the openings of the casing and provided at one end thereof with a locking-notch, a bell-crank trip-lever pivoted within the casing and having its short arm weighted and adapted to engage the locking-notch for holdin said rod in set position, the long arm of sai lever passing through an opening in the top of the easing forengagementwith the said box-earriage. t

. 7. In a phonograph, the combination with a motor-brake, of a feed-shaft, a sound-box mounted for travel on said shaft, a casing provided with alined openings, a rod slidably mounted in said openings and provided with a locking-notch, a detachable link enga g the rod and connected to'the brake, a pate carried by the rod, a spring inter osed between the plate and the casing, a l-l crank trip-lever pivoted Within the casing the short arm of which engages the notch in the rod for holding the latter in set position, and an adjustable impact-pin carried by the long arm 5 of the lever for engagement with the soundbox carriage.

In testimony that I claim the foregoing as ZENAS TARBLE GROVER.

Witnesses CHAS. LITTLEFAIR,' ALLAH L. MORSE,