US1712212A - Electron-discharge-tube socket - Google Patents

Description

May 7, 1929. c., HARDY 1,712,212

ELECTRON DISCHARGE TUBE SOCKET Filed OCb. l2, 1925 1 l f 1 f r Il INVENTOR Chorlea I'lavfdg .ATTORNEYS Patented May 7, 1929.

1,712,212 ENTOFFICE.

PAT

CHARLES HANDY, or NEW YORK, N. Y., ASSIGNOR 'roAMsco rRoiiUOrs, INC., or NEW i YORK, N. Y., A CORPORATION or NEW YORK.

ELECTRON-DISCHARGE-TUBE SOCKET.

- Application led Octo'ber 12, 1925. Serial No. 61,5531.

This invention relates to improvements in sockets or receptacles for electron discharge or vacuum tubes of the type employed in radio receiving sets.

The principal object of my present invention comprehends the provision of an -improved socket for electron discharge or vacuum tubes embodying a construction which is designed to meet various requirements of service of the manufacturer, assembler and user of radio receiving sets in a highly efficient and economical manner.

More specifically, the prime desiderata of the present invention include the provision of an electron discharge tube socket `constructed and designed so as to be capableof being manufactured in large Iquantities economically and uniformly, assembled in radio receiving sets with facility and rapidity and used with'convenience and efliciency, the still further provision of a vacuum tube socket constructed to form la substantially closed casing or receptacle, housing or enclosing the resilient contact elements thereof, the socket being adapted to receive the electron discharge tube in only one position, with the contact pins of the tube cooperating in a predetermined way with the contact elements v of the socket; the further provision of an improved socket of this type in which the resilient Contact elements of the socket engage the sides of the tube contact pins to produce a clean and effective electrical engagement or contact therewith, and to hold the tube securely in its mounted position; the still further provision of an improved socket of the nature referred to which is readily mountable, as by means of a sin 'le securing element, on a base or sub-base o a radio receiving set; the further provision of a socket structure defining a substantially closed casing made of body and cover sec- .'f 'tions which may he readily assembled to v' produce the casing unit, and in which the j arts are coordinated to interengage or interoclr, 'so that the socketmay be manufactured with a minimum ofparts correlated to produce arugged 'and strong structure; and the, further provision of an electron discharge tube socket having'its lpartseoordinatedto produ'ea neatjand attractive appearance and'design. l,

-To the accomplishmentvof the foregoing and such other objects as will hereinafter appear, myf invention .consistsi in the elements and their relation oneto the other, as hereinafter more particularly described and sought to be defined in the claims; reference -beine` had to the accompanying drawing whic shows the preferred embodiment of my invent1on,and in which:

Fig. 1 is a cross-sectional elevational view of a socket embodying the principles of my invention and showing the manner of its ing or receptacle housing or enclosing the Contact elements of' the socket, the cover section B defining a base for receiving and mounting the electron discharge tube generally designated as C.

The base or cover section B of' the soclzet\ comprises a unitary .member made of an insulation material molded' to provide the cover portion 10 and the integral hub por- -tion 11, the said hub Aportion defining a means for receiving a securing element `such as a screw '12 for attaching the socket structure vto a support such as a mounting base 13, the said hub 11 being provided with a metallic insert 1.4 molded in the hub 11, which insert defines a rivet or securinfr means for uniting the base B to the body of the socket, as will become clearer hereinafter The base or cover section Bis designed l tube C.' From a consideration of Figs. 1 2 and 3 of the drawings, it will be seen that the width of the orifices 17 and 18 is greater, vthan thatof the orifices -15 and 16, and that these orifices are spaced non-uniformly about the axis of the socket to correspond to the dimensions and spacing of the conl tact pins 2l and 22 and 19 and 20, so that the vacuum tube is receivable by the socket in only a given or predetermined position, so as to obviate improper mounting of the tube on the socket.

For cooperation with the contact. pins 19-22 of the electron discharge tube C, there is provided a plurality of resilient Contact elements 23,. 24, 25 and 2G which are secured interiorly to the base or cover section B, each of the Contact elements being secured to the cover section preferably by means of a rivet 27, each of the said coutact elements being disposed radially of the socket base, so that its outer end extends radially from the socket structure for ready connection or attachment to the electrical Wiring of the radio receiving set, the inner end of each contact element being disposed adjacent and below one of the contact pin receiving orifices and yin the path of movement of a tube Contact pin so as to engage the side of a contact pin when the tube is mounted on the socket base Preferably the construction is such that the contact pins and contact elements engage with a scraping action so as to remove the oxidized surface on either contact element, and thus produce elicient electrical engagement. To accomplish this object, the inner ends 23-26 ofl the contact elementsl are bent so that the outer free edges thereof are positioned in the path of movcnlenttof the contact pins 19-22 to engage the latter with a scraping action.

It will be noted that each of the Contact /elements is attached to the cover section or base B at only one point by means of the rivets 27, and in order to retainingly seat the contact elements or springs 23-26 against rotation, the vbase B is preferably formed with pairs of integral ribs 28 and 29, one pair for each Contact element, the ribs of a pair defining a seat for receiving the contact element or spring and retaining the same against rotation about the securing rivet, as will be clearly apparent from a consideration of Figs. 1 and 3 of the drawings.

Preferabl the base orvcover section B is pro-- vided wit 1 an integral raised annulus 30 forV seating the base of the vacuum tube.

vThe socket body A inthe preferred construction comprises a cup-shaped elementalso made of an insulation material molded to provide a bottom wall 31 and ,a side wall `32, the said bottom wall being provided with a central aperture 33 which receives vthe metallic insert or rivet 14 of the cover section, the lower edge of said rivet being flanged over or riveted onto the underneath wall of the body bottom 31 to unite the body and cover sections together to form the sock et unit, as will be clearly apparent from a consideration of Fig. 1 of the drawings. With this construction, it will be seen that the\socket unit may be attachedor mounted on-a support such as a base board 13 with the use oi a single securing element such as 12, the bottom of the.v cup A being provided with a plurality of integral prongs 34 which, when pressed into the base board 13, retain the socket unit against rotation thereon. Preferably the hub l1 of the socket is provided at its top with a countersunk portion fifi-for receiving and concealing the head of the seein-ing screw 12. gThe cup A may `further be provided with the integral strengthening ribs 36, 3G. y s

'lo previ-nt displacement or rotation of the cover section B on the cup or body section A. the top of' the body side wall 32 is provided with a pluralit y of cut-out portions 37, 88, 39 and 40 (see particularly Figs. 1 and 4 of the drawings) which accommodate and receive the extendingor protruding ends of the leaf contact elements 23--26 and cooperate therewith to prevent rotation of the casing sectiou on the body casing scction A. 5 y

The manner of making, assembling and using ithe improved socket of my invention and the many advantages thereof will in the main be fully apparent from the above detailed description thereof. It will be apparent that the body and cover sections A and B of the socket define a substantially closed casing or receptacle which houses or encloses the contact elements and pins of the socket and vacuum tube, with the cover of the casing forming a tube receiving base which receives the vacuum tube in only one predetermined position, thus inhibiting a mismounting of the tube on the socket. It will be .further seen that the Contact elements of the socket are designed so as to assure a clean contact with the contact pins l may be readily molded in attractive designs;

and may be rapidly assembled by first attaching the contact elements 23e-26 onto the cover section B and by riveting the hub of the cover sectioncentrally to the cup section A, the parts interlocking toproduce a strong socket unit.

readily assembled in quantities, the same vrequiring the employment of' only a single securing screw. The parts, moreover, lcooperate to produce a neat and attractive appearance and design. v

While I have shown and described my invention inthe preferred form, it will be ap-V' parent that numerous changes" and modifi- It will be fur-l ther apparent that the socket units may be` miams cations may be made in the structure disclosed without departing from the spirit of the invention, defined in the following claims.

I claim:

l. An electron discharge tube socket comprising body and cover sections, one of said sections being provided with an oriced hub secured to the other section for uniting the sections together to form a substantially closed casing, the hub defining a means for receiving a socket scouring screw or the like, one ot' `said sections defining the tube receiving base and being provided with a plurality of orificesI dilncnsioned and relatively spaced to receive the contact pins of the tube. and resilient Contact elements secured interiorly to one of the casing sections and positioned to be engaged by the contact pins when the tube is placed on the socket base.

An electron discharge tube socket coinprising' body und cover sections, one of said sections being provided with an orificed hub secured to the other section for uniting the sections together to form a substantially closed casing, the hub defining a means for receivingr a socket securing screw or the like, one ot said sections defining the tube rccciving base and being provided with a plurality of orifices diniensioned and relatively spaced to receive the contact pins of the. tube, and resilient contact elements secured interior-ly to one et' the casing sections, each having its end edge positioned below one ot said orifices in the path of movement ot' a tube contact pin so as to be arranged to engage the side ot a contact pin with a scraping action when the tube is mounted on the socket base.

An electron discharge tube socket comprising body and cover sections, one of said sections being provid'cd with an orificcd hub secured to the other section for uniting the sections together to form a substantially closed casing, the hub defining a means for receiving a socket securing screw or the like, the said cover section defining the tube receiving base and being provided with a plurality of orifices dimensioned and relatively spaced to receive the contact pins of the tube, and leaf contact springs secured interiorly to said base having inner ends adapted for engaging the tube contact pins and having outer' ends extending laterally from the socket casing, the top of Said casing body being provided with cut-out portions tor accommodating and receiving the extending ends of the contact springs and cooperatinging therewith to preventrotation ot the cover casing section on the body casing section.

4. An electron discharge tube socket comprising body andl cover sections, one of said sect-ions being provided with-a screw receiving hub portion secured to the other section for uniting the sections together to form a substantially closed casing, the said cover section defining the tube receiving base and being provided With a plurality of orifices dimcnsioned and relatively spaced to receive the contact-pins of the tube, contact springs for cooperation with the contact pins each secured interiorly at one point to said base, the base being formed with integral means for seating the springs against rotation, the said springshaving outer ends extending radially from the socket casing and the top of said casing body hving cutf out portions for accommodating and receiving the extending ends ot the springs and cooper-ating therewith to prevent rotation of the cover casing section on the body casing' section.

5. An electron discharge tubecsocket com* prising a cup section, a cover section forming a tube receiving base, both sections made of molded insulation material, one of said sect-ions having an integral hub portion provided with a rivet insert Which is riveted vto the other section, a plurality of orices in the cover section, Contact springs riveted interiorly to the cover section each having an inner end adjacent an c `ifice and an outer end extending radially from the socket, the cover section being ribbed to provide retaining seats for the springs.

G. An electron discharge tube socket comprising a cup section, a cover Section forming a tube receiving base, both sections made of molded insulation material, one of said sections having an integral hub ortion provided With a rivet insert whic is riveted to the other section, a plurality of orifices in the cover section, contact sprinrs riveted interiorly to the cover section each having an inner end adjacent an orifice and an outer end extending radially from the socket, the cover section being ribbed to provide retaining seats for the springs, the top of said cup section having cut-out portions accommodating and receiving the ext-ending ends ot the springs and cooperating therewith to prevent rotation of the cover section on 'the cup section.

7. An electron discharge tube socket comprising body and cover sections forming a substantially closed casing, one of said sections having an integral central hub portion provided with a rivet insert which is riveted to the other section, one of said sections defining the tube receiving base being provided With a plurality of orifices dimensioned and relatively spaced to receive the contact pins of the tube, and resilient contact elements secured interiorly to one of the casing sections and positioned to be engaged by the contact pins when the tube is placed on the socketbase.

8. An electron discharge tube socket comprising body and cover sections forming a.

ioo

Substantially closed casing, one of smid son tions having im integral contrai huh port-ion provided with a rive-t inSort which is riveted to the other section, one oi Said swftions dc- 5N filling the Luhe receiving has@ boing provided with u plurality of orificos dimmisioneii and rolntix-'ely'spaced t0 receive thel contada pins of the tube2 und a. plurality ot Contact moans riveted interiorly to one of saint sectionnch Contact. means having an 10 inner und adjacent :m orificeA and :ui outer 0nd oxttnding from the socket casing.

Signori :it New York city, in the county of New York :uid Stato of 'New York, thin` Sth duty of October A. D. 1925.

CHARLES HARDY.

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