US1404078A - Automatic stop for talking machines - Google Patents

Description

E. E. WIFORD. AUTOMATIC STOP FOR TALKING MACHINES. APPLICATION FILED MAY I0, 1920.

1 404 07 Patented Ja'n..17, 1922.

2 SHEETSSHIEET 1.

. ZZZ W INVENTOR M M ATTORNEY QM w m E; E. WIFORD'. AUTOMATIC STOP FOR TALKING MACHINES.

APPLICATION FILED MAY I0, 1920. 1,404,078, Patented Jan. 17, 1922.

2 SHEETSSHEET 2.

5 Ward mvzwroa A'rroRNEY PATENT OFFICE.

, ELZA n. wironn, or SIDNEY, onto.

AUTOM ATIC STOP FOR TALKING MACHINES.

Specification of Letters Patent.

Patented Jan;.17, 1922.

Application filed May 10, 1920. Serial No. 380,205.

To all whom, it may concern:

citizen of the United States, residing atSidney, in the county of Shelby and State of Ohio, have invented new anti useful Tmprovements in Automatic Stops for. Talking Machines, of which the following is a specification. V V

This inventionrelates to automatic stops for talking machines, and. comprehends a construction which oan be accurately set in a minimum of time, the construction being simple butyet positive of operation for the purpose intended.

The nature and advantages of the invention will bebetter understood when the. following detail description is taken in connection withthe accompanying drawings, the invention residing in the construction, combination and arrangement of parts as claimed. i I

In the drawings forming part of this application like numerals ofreference indicate similar parts in the several. views, and wherein: 1

Figure 1 is a plan view of atalking ma chine showing the turn table by dotted lines, and the automatic stop mechanism arranged therebeneath. V V T Figure 2 is a fragmentary view showing the set position of the stop mechanism.

F igure3 is a sectional View taken on line 33 of Figure 1.

. Figure 4 is a-detail view of the trip element.

Referring to the drawings in detail, A indicatesthe turntable of the machine, B the tone arm, and C thereproducer.

The automatic stop ;mecha nism forming the subject matter of my invention com prises a base plate indicated at 10 and adapted to be secured to the machine in any suitable manner, but beneath the turn-table A. Pivoted as at 11 upon the base plate -10 is the combined starting and setting lever 12, this lever being manually'operable in set,- ting the mechanism, and for which purpose it projects, an appreciable distance beyond the periphery of the-turntable A. v This. le-

ver is formed to provide a segmental end portiOIi 13Wliioh, reposes upon the base :plate 10, and this portion cooperates with a pivoted latch element 14 for holdingthe mechanism in set positions A brake of usual construction indicated M15 is mounted upon the lever 12 at points where it normally contacts the flange of the turntable A as clearly illustrated in Figure 1. The latch element 11 is curved to correspond with the curvature of the outer edgeot the segmental portion of the lever 12,.theelement lt being pivoted upon the base plate 10 as at 16. A coiled spring 17 connects the latch element with the segmental portion of the lever 12, this spring functioning to holdthe parts operatively associated. The latch'element 1 L visprovided with a tooth or lug'18 which is engaged by a similar tooth or lug '19 formed on the segmental portion of the lever 12, when the parts are in set position. Pivoted upon the free extremity of the latch element 14:, is a finger. 20 having a-cam like portion 21. .for the purpose to be presentl described. The fingerQO is normally positioned in the manner shown in-Figure 1, and is moved to its set position through the instrumentality of a pin 22carried by the segmental portion of the lever 12. A trip element for the finger 20 is indicated at 24 and is secured to the tone armB. 'The trip element is of the configuration illustrated in Figure 4, and includes a depending portion 24 which is adaptedto contact the finger 20 tooperate the automatic stop for the machine. I

Normally, the parts are arranged int-he manner shown in Figural, and subsequentto the placing oi a record upon the turntable, the needleotthe reproducerwis arranged in the innermost groove of the record. This of course, swings the tone arm upon its pivot and positions the trip element MC-with respect to the center of the record. The combined starting and setting lever 12 "is now moved upon its pivot in a direction tospace the brake from the flange of the turntable, thus permitting the. turntable to rotate. When the leverlQ isv moved in this direction, the pin 22 is moved into engagement with the cam-like portion 21 of the finger 20, moving the finger upon its pivotinto contacting Before the lever 12 is released, the reproducer is moved upon the periphery of the record and the needle placed in the entermost sound groove of the record. "Upon restrumentality of the spring connecting the same, and consequently the-teeth 18-and 19 respectively contact each other and thereby hold the mechanism ina set position and the brake spaced from the flange of the turntable. As the needle moves toward the center of the record, the trip 24 on its tone arm approachesthefinger 20, and when brought in contact with the finger 20, moves the latter from its set position in a direction of the brake. This finger continues in its movement in this direction until the cam like portion 21 thereof contacts the pin 23, incident to whichthe segmental portion of the lever 12 is adjusted to separate the teeth 18rand 19 whereupon the spring functions to shift the lever 12 to normal'pos'ition and the brake in contacting engagement withthe flange of the turntable,.thereby stopping the machine. Mounted upon the base plate 10 is a slotted lug adjustable toward and away from the latch element 14'and adapted to be positioned'to limit the outward swinging movement of the latch element, the lug 26 being held fixed upon the base of a set screw 27 g While it is believed that/from the foregoing description the nature and advantages of the invention will be bettei understood, I desire to haveit understood that I do not limit myself to the details herein shown and described, and that such changes may be re sorted to when desired asfall within the scope of what is claimed "What I claim is 7- 1. An automatic stop for talking. ma chin'es comprising a lever pivoted beneath the record table, a brake supported -by said lever and normally engaging the table, a pivoted latch cooperating with said lever to maintain the brake spaced from said table, a resilient connection between said lever and latching element and a finger fitted on said latch element and adapted to be positionedin'the path of movement of the tone arm of the machine, and actuated thereby to raise the lever from s id'latch'element. 1.

' 2; An automatic stop for talking machines 'comprising a lever pivoted beneath the record table, a brake carried by said lever and normally engagingthe table, a pivoted latch element cooperating with the leverfor holding the brakespace'd from said table, a resilient connection between said lever and "said latchelement, a finger pivoted 'upon the latch element and adapted to bereaved by said lever to a po'sit'ion in the plate 10 by meanspathrof movement of the tone arm of the machine, whereby the finger is actuated to release the lever from said latch element.

3. An automatic stop for talking machines comprising alever pivoted beneath the record table, a brake carried by the lever and normally engaging said table, a pivot-ed latch element cooperating with the lever to holdthe latter in an adjusted position said finger and movedaway from the lever when the latter is moved in one direction, an adjustable stop limiting the movement *o'fthe latch element in'one, direction, the said finger being actuated by'the tone arm of the machine to effect a release of the lever from said latch element. 7

4. An automatic stop for talking machines comprising a'lever pivoted beneath the record table, a brake supported by the lever and normally engaging said table, a latch element pivoted adjacent the lever and cooperating therewith to hold the latter in an adjusted position and the brakespacet lease of the lever from said latch element when said finger is again brought into contact with said pin; 1 I v 5. An automatic stop for talking machines comprising a lever pivoted beneath the recordtable and having a segmental portion, a brake carried by the lever and normally contacting said'table, a toothprofrom the table, a resilient connection bejecting from said lever, a latch element piv- V oted adjacent the lever-and curved to conform to the shape of the segmental portion, a tooth projecting from the latch element and adapted'to engage the tooth of the lever to hold the lever in one position with the brake spaced fromithe table, a resilient connectionbetween the leverand said latch ele- 'ment, a finger'pivoted upon the latch element to move saidlever to its set position in the path of movement of the tone arm of the machine, said finger being actuated by'the tone arm and cooperating with means on the lever to effect a release oflthe'latterfrom the latch element when thefinger assumes a'predetermined position. i i V In testimony whereofI a'ffix my -signature. 1" ELZA'EJVI'FORD

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