US1798196A - Controlling talking-machine turntables - Google Patents

Description

F. L.. DYER March 31, 1931.

Jan. 23. 1929 I will be stopped,

' eluding I Patented Mar. 31,1931

STAT

; 'con'rmrmrm Tums-manner: runu'rnnnn's Application m him; as,

M invention relates to means for controlling the records of talking machines, gned'particularly for use in connection ioture films and operated 1n erewith, as disclosed for-example, in my application for patent, file January 2, 1929, Serial No. 329,800.

My objectis toprovide mechanism by which a talking machine record may be y and will pick-up to 10 started very quickl normal synchronous speed almost instantly, which when also to provide 'mechanism by one record-is started, its companion record and further toprovide 15 mechanism by which both records may be held from rotation, if des1red. In order that my invention may be better understood, attention isdirected to the accompanying drawing forming part hereof,

- and in which-- e' 1 is a plan view. of two records illustrating the improved mechanism for controlling them and showing both records Figur I held from rotation.

Figure 2, a similar view, illustrating one record stopped and the other rotating, the records being shown fragmentarily. Figure 3, a view similar to Flgure in a reversal in the starting and stopping. i 4, a side elevation of one turntable and controlling mechanism; and.

Figure 5, a fragmentary section on an en.- larged scale, showing aiportion ofone turn- 1 table with the elements carried thereon, in-

the soundrecord.

In all of the above views corresponding parts are identified by the same numerals.

There are two turntables for carrying the two sound records 1 and 2, adapted to be played successively, one being started the moment the sound from the other stops.

Each turntable 3 is of usual construction,

being formed of sheet metal with a down turned flange, and being carried by a vertical shaft 4 driven continuously and in syn chronism with themotion picture projector, as disclosed in my application above re,-

' ferred to.. The ordinary centering pin 5 no'projects upwards from each turntable for d. the met 1 of 2, show- PATENT ot-Pica FRANK 1.. pm, or new Yonx,

1929. Serial 110,884,488-

centering the several elements carried there-.

on, including the record 1 or 2. Mounted uPQn each turntable is a friction.

disk 6, made of a material havin al' relatively high coeflicient of friction wit respect to 5' the turntable, enerally sheet iron or steel. 1 I prefer to use or the purpose, materials of the nature of automobile brake' linings, employing im regnated asbestos fibre. Each disk 6 may spective'turntable, or may rotate therewith by reason of friction between the surfaces.

Placed upon each frictiondisk is a metal control disk'7 as shown, preferably carrying a facing 8 of felt or othersoft material, such 6 as that now used on the upper face of.an ordinary talking machine turntable.

Resting on the felt or pad' 8 is the record 1' or 2, which therefore Wlll. be rotated by the v respective turntables through ate plates or control disks 6 and 7. v a

Each of the control disks 7 is formed with 1 a projection or tooth 9 adapted to be intercepted by the improved controlling mechanism if rotating, at rest, as I will now explain, v

A- lever 10. having a handle 11 is pivoted upon support 12 y means of a .pivot screw 13, said lever being located between the two turn tables as shown in is formed' with an angular nose or vend 14 adapted to be moved in. the path of projec-e tion 9 corresponding to record 2, so as to arrest rotationthereof as shown in Figures 1 and 3 or to be moved out of engagement with 8 said pro'ection to permit said record to rotate' ass own inFigure2.p I

voted tolevfer 10 .is an arm 15 having a' hooked'end 16 adapted to cooperate in the same way with the projection 9 corresponding to record 1. p Provision is made whereby the relative separation between the controlling elements 14 and 16 maybe such as will stop both control disks 7 as in Figure 1, or'stop only one or the other control disk as in Figures 2 and 3. For this purpose, I show toggle links 17, 17 con necting the arm 15 with lever 10, the ivot 18 of said links extending into a slot 0 a slide I 19, the latter havmg a longitudinal slot 20,

e. secured to its rethe intermediorto be released thereby, if 5 Figure 1. The saidlever 'ded b a headed screw 21 and-by the pivot iiew 13 before referred to. Y A spring 22 tends to move the slide 19 to the position of Figure 1 thus s readin the 5 control elements 14 vand 16. H'he sli e is formed with a finger piece 23 by which it may be drawn to the position of Figures 2nd 3,

bein locked against the tension of spring 22 by a atch 24.

m y suitable cushioning element may be employed to absorb the shock due to the sudden stoppingof the disk 7 when it engages controlling element 14 or 16.

In operation, both turntables will bedriven 15 continuouslyand in synchronism -with the projector. If either control disk 7 is re-. leased, the corresponding record will be driven by friction with the pad 8 and through the friction disk,6 which may be either free to move with respect to both the disk 7 and turntables or be secured to either so as to be movable with respect to the other.

If either control disk 7 is arrested, rotation of the record will stop, but the turntable-will continue to rotate against the friction of friction disk 6. a By causing the cont olling elements 14 and 16 to occupy the positiim of Figures 2 and 3, the lever 10 as a who e may be swung pivotally to release one record and stop the other, while by tripping the latch 24 both records willlbe held from rotation as shown in Figure What I claim is: 1. In controllin mechanism for talking machines, the com ination with a pair of turntables and ,a sound record frictionally driven by each turntable, of a pivoted lever between said turntables, a stop-on said lever 40 for controlling one recor an arm pivoted, to said lever, a stop on said arm controlling the other record and means for moving said arm independent y of said lever to arrest rotation of both records. v 2. In controlli mechanism for talkin machines, the com ination with a turntable, a control disk carried by the turntable, a friction disk between the control disk and turntable permitting relative movement of said elements and drivin the control disk frictionally, and a sound record carried by the control disk, of means for permitting the starting and stopping said control disk.

, FRANK L. DY ER. so

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