US934450A - Foot control for graphophones. - Google Patents

Description

' T. H. MAGDGNALD. 1 Few CONTROL FOR GRAPHOPHONES. APPLICATION FILED DBO.9,1908.

Patented Sept.21,1909.

THOMAS MACDON GBAFHGPEOZE Q WEST V RGIDIIAM.

w 01 Letters Eatent.

Application filed lime-saber 9, 1908. Serial No. 428,673.

To all whom it may concern;

Be it known that I, Tnmms H ALB, a, citizen of the United State; ice, and a "resident of l'Bridgep0";

n how 1 01 i seesem. l.

eoanty, Connecticut, have inven 2 .2101 useful Feel; General G; hephones, 1 l

18 "wl'ich 1?; fully forth in lube ioluvlngj which T the {la-vice is on Showing 76 n 4W0 parts Si! in gmsition 4 emblz then to siar'i; it u; again, as m e to think of the right word 01" pl dictation. This siiarting and a be brought about luster: :ily, mm

unconscious or autonmtic movement operator whose "aim? and n J i? will u "161 :4 t movable rises the park, 2 mary pert com peyt.

2o busy Wiih other melt T lug v7 0" m; 1

stoppmg is commonly ear: l e

pneumatically ope'cated vice, which is itself 0' ei a bulb of soft rubber 2.5 tubing connectesi wit vice like that use of 21. photograph came 1 the floor near the presses ii'to step hie it to start it m v e lms n;- l is by no means a 3e; ye :z ewe-11,. whnnber oifice; it is liable to roll slight I Hwy 01 l ton,

and he 90 the reach of the opem1,oz,s to make a conscious eil'or the rubber will cleieriomte 2:? use lose its resiliency, so that if. 1,1015 expand promptly or comnletely upon. the removal 01": the operetors foot, whereby the graphw 1 phone is not started no pr mpily 0y all; the bull) will also 101; and are: k aim-.1 some use which will. renlor if. nltogetlerl '-v rtl1less for the purpose. l 1

json 11 which engages utsicle well ch,

letween plug 1. ce'ive snfiglj 1 Rtatiumry men: on

' outer ism :z/

' ime o1.

gx'oove Till"! block;

The object of the present invention to provide a substitute for this ;-,-vol?t-1"m1be1 bulb.

The invent-ion consint.

. lower 3 of a neat (:ompec't, SO as lo substantial anal (lui'able two-part znel'al le- 16 is u viee,.whicl1, while easil moved around as i apron 1 by :1 thrust of the foot, will xleuezfilxele. ,ii i ldil in wall main station-dry WlP-YQVGL placed; 1 device m ble ike which \Ylll'fil. be stable. in its position, so i as not to be ac identa upset e which is L c above all melt ve, ellicien. 11d always 00- g (after forcing them down) replace the screw 17 through slot 16. To disassemble, it is only necessary to take out the screw 17. .It

will be further observed that except for the spring 14 there are only two parts to the entire apparatus, viz: the stationary part 1 and the movable part 2.

The operation of the device is obvious.

In order to-obtain the most satisfactory results the device'should not be top-heavy. The preferred construction now being put out, as illustrated in the drawings, shows the height of the entire device when assemblcd to be considerably less than its base. The parts are substantial and massive, comparatively heavy, in fact; so that there is no risk of tipping over or sliding along the floor or slipping from underneath the foot when the operator undertakes to press on head 9.

Of course no valve is necessary in this device, wherein it differs from a pump.

The m ention is not limited to the precise construction and arrangement of.pa rts set forth, or to the precise proportions shown ber with a nipple attached thereto, a movable member comprising a massive plug fitting as a piston Within said chamber and an.

apron fitting outside the same, and a spring interposed, between the two members.

2. A foot-control for dictation graphephones, consisting of a two-part device of less height than width, the stationary memher thereof having a cylindrical casing with 3. A foet-control for dictation grapho phones, consisting of a comparatively low and broad stationary member carrying a guide-screw and a n1pple,'a comparatively low and broad and heavy movable member fitting therein and having a concentric apron surrounding the-same, said apron having a also a guide-slot engaging said screw, and a spring interposed between said members.

In testimony whereof I have signed this" presence of two subscrib cut-away portion to straddle said nipple and' I

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