US1289784A

US1289784A - Automatic starting and stopping device for talking-machines.

Info

Publication number: US1289784A
Application number: US22679718A
Authority: US
Inventors: Albert A Huseby
Original assignee: Individual
Current assignee: Individual
Priority date: 1918-04-05
Filing date: 1918-04-05
Publication date: 1918-12-31
Anticipated expiration: 1935-12-31

Description

A. A. HUSEBY. AUTOMAHC STARTING AND STOPPING DEVICE FOR TALKING MACHINES. APPLlCATlON FILED APR. 5. \9l8 1,289,784. Patented Dec. 31, 1918.

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jzrzjl fwe was A. A. HUSEBY. G AND STOPPING DEVICE FOR TALKING MACHINES. APPLICATION FILED APR. 5. 19l8.

AUTOMATIC STARTIN Patented Dec. 31, 1918.

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A. A. HUSEBY. AUTOMATIC STARTING AND STOPPING DEVICE FOR TALKING MACHINES.

APPLICATON FILED APR. I I918. 1,289,784; Patented Dec. 31, 1918.

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ALBERT A. HUSEBY, OF CHICAGO, ILLINOIS.

AUTOMATIC STARTING AND STOPPING DEVICE FOR TALKING-MACHINES.

Specification of Letters Patent.

Patented Dec. 31, 1918.

Application filed April 5, 1918. Serial N 0. 226,797.

To all whom it may concern:

Be it known that I, ALBERT A. flower, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Automatic Starting and Stopping Devices for Talking-Machines, of which the-following is a speclfication.

This invention relates to the art of talking machines, and has reference more particularly to an improved mechan sm for automatically starting and stopping the motor of the machine at the beginning and end of the playing of a record. More specifically, the invention belongs to that type of automatic motor controlling mechanisms wherein the control is effected by the swinging movements of the tone arm, and wherein the mechanism can be set, in advance of the playing of a record, so as to arrest the motor at the completion of therecord regardless of the length of the latter.

The principal object of the inyentlon is to provide an improved and simplified automatic starting and stopping mechanism that shall be certain and reliable in its action, shall occupy but little space in the mechanism of the machine, shall be capable of being manually set to effect the stopplng of the motor at any desired point in the inward swing of the tone arm, and shall be well adapted to that type of machine employ ng a vertically pivoted horizontally swingmg tone arm in association with a stationary underlying horn'or amplifier. With this and other objects in view, which Wlll be apparent from the following detailed description of the invention, the latter consist-s in the novel parts and combination of devices for effecting the purposes of the invention substantially as hereinafter described, and more particularly pointed out as to subject matter and scope in the appended claims.

My invention, its mode and principle of operation, and advantages inherent therein, will all bereadily understood and appreciated by those skilled in this art from the following description, taken in connect on with the accompanying drawings formlng a part of this specification, in which Figure 1 is a top plan view of the supporting table or platform of a talking machine, with the usual turn table omitted for greater clearness, and with the forward portion of the tone arm broken of.

Fig. 2 is a bottom plan view of F ig. 1.

Fig. 3 is a fragmentary front elevation, including the motor and brake mechanism, as viewed from the bottom of Fig. 1.

Fig. 4 is a view of the parts shown in Fig. 3 as seen from the right of the latter.

Referring to the drawings, 5 designates the horizontal table or platform of the machine which, in practice, is mounted at the upper end, and below the lid or cover of the usual talking machine cabinet (not shown). This-table or platform, as usual, supports the turn table and tone arm on its upper side and the motor and motor controlling mechanism on its underside. In the drawings 6 designates the tone arm which is pivotally mounted to swing about a vertical axis indicated at 7 and which communicates with an underlying horn or amplifier, not herein shown, since it forms no part of the present invention.

Rigidly secured to the tone arm 6, as by screws 8, is a forwardly extending arm 9 having its forward end a bent extension 10 formed with an outer curved or cam edge 11 for a purpose hereinafter disclosed.

Pivoted at 12 (Fig. 2) to the underside of the table 5 and lying against the latter is a flat bar or strip 13, the free end of which rests upon a guiding and supporting strip 14 that is secured at its ends to the underside of the table as by bolts 15. Slidably mounted in guide lugs 16 and 17 depending from the bar 13 is a rod 18. Keyed on this rod are two collars 19 and 20, between which lies the upper end of an arm 21, felt washers 22 being preferably interposed between the arm 21 and the collars 22 to eliminate noise. The lower end of this rod 21 (see Fig. 3) is pivoted at 23 to a horizontal rock shaft 24, this latter being pivoted at its ends in a bracket 25 that is rigidly secured to the motor frame 26. Fast on the rock shaft 24 is an upstanding brake arm 27 carrying at its upper end a brake shoe 28 that cooperates with the periphery of a brake disk 29 fast on the governor shaft 30 of the motor. A coil spring 81 (Fig. 2) surrounding the rod 18 and abutting one end against the lug 17 and at its keeps the brake shoe applied disk, holding the motor idle. When, however, the rod 18 is shifted endwise toward the front end of the machine, the brake 1s released by the thrust of the collar 19 against the arm 21, and the motor is allowed to start.'=

theftone arm'by the following mechanism:

32 designates an arc-shaped slot formed in the table 5, through which pro ects a stud I 33, preferably having rubber covering a bell crank lever that is pivoted'at 35 to the underside of the table 5. Theother arm 3560f this bell crank lever is connectedby a link 37 to a lever 38 that, in turn, is pivoted! between its ends at'39 to a forked arm 40 straddling the rod 18. A col-f This is efiected automatically 7 f upon the outward swinging movement of te a position wherein the stylus occupies the innermost coil of the record center of the table, and by turning it in the opposite direction it is swung toward the center of the table. r r

A tension spring 57 connected at one end to the l1nk 37 and at its other end anchored to a lug 58 secured to the underside of the table 5 serves to return the lever Y38 and contact stud 3-3 to normal position after the brake has been released in the manner-hereinafter described.

Describing now the 0 13811551011 015 the V mechanism, when a given record is to be u to; played it is positioned on the usualturn eliminate noise and carrled by' one arm 34 of??? table,

and'the tone arm is swung inwardly roove, or a position slightly inward of the b V I termination of the record, since the last few table 5 and has a coils of the groove are usually blank. Since ,the' arm 9 is rigid withthetone arm it si lar 4:1 keyed on the outer end of the rod '18*g",{multaneously swings in the same direction,

"'occupy1ng,"for example, the position shown forms an abutment for render the latter effective on 17 to eliminate noise. y The means for holding the brake released during the playing of a reoord,and for automatically applying it at the conclusion of the playing of the record consists of the following mechanism: e 7

Pivoted at 43 to the underside of thebar 13 is a trigger lever, onearm 4 1 of which is provided with a downwardly turned stop I in a direotion to carry its stop projection 44- I i in Fig. 2 the ,heldagainst end of the rod 18.

projection MJ- that is adapted to swing into and out of the path of travel'of the inner The other'arm 45 of this lever has a bent end 45 that extends beyond the edge of the bar-13 and carries at its free end an upstanding stud 4i (Fig. 1) that projects through an arcuate slot i? in the table 5. This trigger-lever is normallyurged i lowing parts:

49 designates a vertical shaft journaled in the forward portion of the table 5 and provided on its upper end'with a turning knob 50. ,On the lower end of this shaft isan' arm 51 connected by a link 52 with one arm53 of a bell-crank lever that v the underside of the table'-5; the other arm 55 of this lever being connected by a link 56 to the angularly shiftable bar 13. Obviously, by turning the knob 50 in one direction th bar 13 is swung away from'the the lever arm 40 toigzf, the rod; felt: washers 42 being preferablyinterposed be-E tween'arm i0 and the collar i1 and guide lug j is pivoted at 54k to a by dottedlines in'Fig. 1.' The' knob 50 is then-turned swinging the bar 18 until the .stud 46 lies in contact with the curved or cam edgell of the arm;9. *At this-time the brake is applied and the brake controlling or needle devices occupy the relative positions: shown inFig. 2. The tone arm 1s then's'wung outwardly tocarry the stylus into the outermost coil of the record groove, and in so doing the arm 9 strikes 'the stud 33, as shown by full lines in Fig.1, thereby, through vthe lever and link connections previously described, shifting the rod18 outwardly and releasing the brake, thus permitting the moe8 causes the stop'lug45 to swing acrossthe inner end of the rod 18 thereby arresting the latter. in its outwardly shifted position and holding the'brake mechanism released,

tor to start, Atthe same instant'the spring i and at the same timemoving the contacty stud 16 slightly inwardly. As soon as the playing of the record iscompleted, the arm 9 strikes the stud i6 and rocks the triggerlever, carrying the stop45 away from the end of ithe'rod 18, thus allowing the. spring 3'1 toac't and to instantly apply the brake 7 and arrest-the motor.

It will be observed that the brake-actuat ing .ar1n'21-is so connected to the rock-shaft 9A- (bythe pivot '23) thatits upper end is fr'eeto partake of the swinging movement of the bar 13. and rod 18-when setting the contact stud 46 and the forked end 40 of lever 38 is long enough to accommodate the maxi mum angular swing of'rod 18 without becoming disengaged from the latter.

it is believed that the construction and operation of thepresent improvement will be readily understood from the foregoing without further detailed description. Maui and described without involving any depar festly the invention may be modified .and

varied from the precise details herein shown ture from the substantial Character of the invention, or sacrificing any of the advantages thereof. Hence I reserve such variations and modifications as fairly fall Within the spirit and purview of the appended claims.

I claim:

1. In an automatic stopping mechanism for talking machines, the combination of a table, a member mounted to travel horizontally above said table, a motor-driven element, a brake for said element, a springactuated brake-applying mechanism, a trigger-lever for holding said brake-applying mechanism inoperative, said trigger-lever having a part lying in the path of travel of said member, and an angularly shiftable member carrying the actuating spring of said brake-applying mechanism and said trigger-lever.

2. In an automatic stopping mechanism for talking machines, the combination of a table, a member mounted to travel horizontally above said table, a motor-driven element, a brake for said element, a springactuated brake-applying mechanism, a trigger-lever for holding said brake-applying mechanism inoperative, said trigger-lever having a part lying in the path of travel of said member, a carrier for said trigger lever and the actuating spring of said brake-applying mechanism pivoted to said table, and manually operable means for shifting said carrier angularly to vary the position of said trigger-lever relatively to the path of travel of said member.

8. In an automatic stopping mechanism for talking machines, the combination of a slotted table, an arm mounted to swing horizontally above said table, a motor-driven element, a brake for said element, a pivoted brake-actuating arm, a carrier pivoted to the under side of said table, a spring-actuated rod slid'ably mounted on said carrier and engaged with said brake-actuating arm, a trigger-lever also mounted on said carrier and movable into and out of stop relation to said rod, a spring urging said trigger-lever into stop relation to said rod, and a contact stud carried by said trigger-lever and projecting through the slot of said table into the path of travel of said swinging arm.

4. In an automatic stopping mechanism for talking machines, the ombination of a slotted table, an arm mounted to swing horizontally above said table, a motor-driven element, a brake for said element, a pivoted brake-actuating arm, a carrier-bar pivoted at one end to the under side of said table, a support on which the free end of said carrier-bar slidably rests, a spring-actuated rod slidably mounted on and lengthwise of said carrier-bar and engaged with said brakeactuating arm, a trigger-lever also mounted on said carrier-bar and movable into and out of stop relation to said rod, a spring urging said trigger-lever into stop relation to said rod, a Contact stud carried by said triggerlever and projecting through the slot of said table into the path of travel of said swinging arm, and manually operable means mounted on said table for shifting said carrier-bar angularly.

5. In an automatic stopping mechanism for talking machines, the combination of a slotted table, an arm mounted to swing horizontally above said table, a motor-driven element, a rock-shaft, a brake arm rigid on said rock-shaft and carrying a brake-shoe cooperating with said element, a brake actuating arm pivoted at its lower end on said rock-shaft so as to swing lengthwise of the latter, a carrier-bar pivoted at one end to the under side of said table, a support on which the free end of said carrier-bar slidably rests, a spring-actuated rod slidably mounted on and lengthwise of said carrierbar and engaged with the upper end of said brake-actuating arm, a trigger-lever also mounted on said carrier-bar and movable into and out of stop relation to one end of said rod, a spring urging said trigger-lever into stop relation to said rod, and a contact stud carried by said trigger lever and projecting through the slot of said table into the path of travel of said swinging arm.

6. In an automatic stopping and starting mechanism for talking machines, the combination of a table, a member mounted to travel horizontally above said. table, a motor-driven element, a brake for said element, a spring-actuated brake-applying mechanism, spring-actuated trigger-lever for holding said brake-applying mechanism inoperative, said trigger lever having a part lying in the path of travel of said member, an angularly shiftable member carrying a part of said brake-applying mechanism and said triggerdever, and mechanism for actuating said brake-applying mechanism to brake-release position and including a part lying in the path of travel of said traveling memher.

7. In an automatic stopping and starting mechanism for talking machines, the combination of a table, a member mounted to travel horizontally above said table, a motordriven element, a brake for said element, a spring-actuated brake-applying mechanism, a spring-actuated trigger-lever for holding said brake-applying mechanism inoperative, said trigger-lever having a part lying in the path of travel of said member, a carrier for said'trigger lever and a part of said brake-applying mechanism pivoted to said table, manually operable means for shifting said carrier angularly to vary the position of said trigger-lever, and mechanism for actuating said brake-applying mechanism to brake-release position and including a part lying in the path of travel of said member.

8.. In an automatic stopping and starting mechanism for talk-ing machines, the combination of a table, an arm mounted to swing horizontally above saidtable, a mot0r-driven element, a brake for said element, a pivoted brake-actuating arm,a carrier pivoted to the under side of said table, a spring-actuated rod slidably mounted on said carrienand engaged with said brake-actuating arm, a springactuated trigger-lever also mounted on said carrier and movable into and out of stop relation torsaid rod, 9. spring urging said-trigger levr into stop'relation to said 'rodfa contact stud carriedby said triggerlever and promoting above said tableinto the path of travel of said" swinging arm, moans for shifting said carrier 'angularly, and mechanismaoting on said rod for aotu ating said. 'brakoapplyingv mechanism to brake releasev position, and including a contaot stud projeotin'g above said table into the path of travel of said swinging arm; 1

ALBERT A.- HUSZEBY.

Copies of this iiatent may ho obtained forfive cents each, by add 'essixig the Commissioner 01. ii'atepnts WashingtonJLC.