US1536936A - Table talker - Google Patents

Description

May 5, 1925.

M. C. RYPINSKI TABLE TALKER 2 Sheets-Sheet 1 Filed March .13. ,1924

- INVENTOR.

M C- YP/NSK/ AT ORNEY.

Mfc. RYPKNSKI TABLE TALKER Filed March 13. 1924 2 Sheets-Sheet 2 Patented May 5, 1925.

' UNITED STATES PATENT orric MAURICE C. RYPINSKI, OF YONKERS, NEW YORK, ASSIGNOR TO C. BRANDES, INQ, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK- TABLE TALKER.

Application filed March 13, 1924. Serial No. 699,090.

To all whom it may concern:

Be it known that I, MAURICE 0. Brian- SKI, a citizen of the United States, residing at Yonkers, in the county of \Vcstcheste-r and State of New York, have invented a certain new and useful Improvement in a Table T alker, of which the following is a specification.

My invention relates broadly to electromagnetic sound reproducers. and more particularly to an instrument for reproducing radio concerts. music and lectures, which I have termed the table talker.

An object of my invention is to provide a unit assembly for an electromagnetic sound reprodueer wherein the acoustic horn is directly connected to the cap, through the agency of a ferrule screwed therein, which cap is screwed over the casing enclosing the eleetron'iagnetic operating mechanism in such manner that the entire'casing may be set vertically downward into a supporting base and lirmly clamped in position.

Still. another object of my invention is to provide a construction of electromagnetic sound reproducer Easing provided with an annular shoulder and a substantial base member into which the casii'ig may be set vertically downwardly against an annular flange on-the extremity of the base and locked in position facilitatingunuiufacture of the instrument.

()thcand further objects of my invention will be, understood fromthe specification hereinafter following by reference to the :u-companyinc drawings, in which:

Figure l is a perspective view showing the table talker of my invention; Fig. 2 is a diagrammatic view illustrating the unit as embly which ll provide enabling the table talker to be set vertically downward. into a supporting base; Fig. 23 is a plan view of the unit assembly illusl rated in'Fig. 2; and l ic's. 1 and 5 show a plan and :1V side eleval'ion partialtv broken away indicating the unit assembly of the table talker and its adaptability 'l'or vertically downward i'nounting in a base which may also contain associated apparatus such as a radio receiver 0 amplifier.

My invention contemplates the unitary structure of the electromagnetic sound reproducer. An annular flange is provided around the top of a screw threaded aperture in the cap on the casin I provide a screw threaded ferrule having a shoulder. and when this ferrule is screwed into the cap this shoulder rigidly abuts the afore mentioned flange. The. ferrule serves as a support for the acoustic horn. The cap is provided with a depending annular skirt with atlange face. at its lower extremity. The structure as a whole may then be set vertically downwardly in an es )ecially prepared basc having an annular flange face at the top thereof surrounding a central aperture. The flange face of the cap may thus contact 7 ith the. flange face of the base forming a rigid support.

Referring more particularly to the drawings, reference character 1 indicates the cusing which houses the electromagnetic oper ating mechanism. A screw cap M is provided on the casing having an annular depending skirt containing interior screw threads which engage with exterior screw threads on casing 1. The screw cap 14". is thickened in its central portion as represented by re fcrence character 16 and an annular flange 17 provided around a screw threaded aperture in the center of cap 14. .A ferrule 20 is screwed into the aperture in the cap 1-1; and firmly seated against the. top surface of flange 17. The ferrule 20 serves as a seat and support for the acoustic born 22. A flat annular flange 18 formed on the lower extremity of the skirt 15 of the screw cap 11-.

It will be. observed that this instrument is complete in ilscll. the cdcctrical terminals being shown at '19 and 21 connected by flexible leads 22). The complete table talker may be. placed vertically downward into the base or base 31 as represented in Figs. 2 and 5.

llorctofore in the. art it has been the practice to support the horn directly in a base of some kind and then insert a receiver unit beneath the base in some position where sound might be directed into the born. This practice is entirely unsatisfactory for quantity productionand l. have developed the present unit to facilitate production and improve its reproducing characteristics. The base 20 is circular in contour with a flat annular flange 25 at is upper extremity surrounding a central aperture of such size that casing 1 wnl snugly fit therein. The

annular flange 18 on cap 14: makes flat con-- tact with the flat flange 25 of the base giving substantial support. It will be observed i n w 1' reducer may bnoperzii'od from the onl'put c rcuit 0 an electron tube mnpliiier, 0r radio YOCCiVlHQ' m amplifying :i pn1'ntns may he nmuntnl thursin.

The present embodiment of my invention has been found 0 be particularly elicieni; i

i operation and ii'lmt- I claim and LiLSllQ w seem- 2 by Rol ers Pal'cnt (iii 11c L lllild States 1.9 ns

min 'YSZ i. [in wmeiiv sound comprising :5; mand l'sf lilCOl' :1 subsinntizilly cup shaped casing, an El hronmgnciic. operating mechanism contained therein, a screw ihreadud cap engzi ing he iviipoi' mrtion n" "aid casing havin fizii annula i'laui above the plane of said ens =5, mi in said cap, :1 sup central apart :rml tly greater ihnn the :1 lint zinnulzn' iltlfifjk! z'oui ding snin. ii'efl poriiimn a mill Jcnding outward y firm-n1 said flan furniing a contimmlion thereof and comprising said supporting base- :md means for as w:-

/ ai' linlly pz'mrtical in cnnsiruclion.

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