US2294896A - Thermionic tube socket - Google Patents

Description

Sept.'8, 1942. H. H. EBY 2,294,896

THERMIONIC TUBE SOCKET Original Filed June 16,- 1937 INVENTOR BY HUGH H. [BY

I ATTORNEZQ Patented Sept. 8, 1942 Hugh H. Eby, Jenkintown, assignments, to Penn;

Corp.

Original application June Divided and this application Decem- Pa., assignor, by mesne 3 Electric Development 16, 1937, Serial No.

ber 18, 1940, Serial No. 370,640

' 2 Claims. (01. 173 339) This application is a division of my application filed June 16, 1937, Serial No. 148,546, now

Patent No. 2,259,157, issued October 14, 1941.

This invention relates to thermonic tube sockets, and particularly to receptacles for radio tubes.

The general theoretical requirements for such I devices are well known and include uniform'and low contact resistance, uniform and tight prong engagement, strength, attractiveness of appearance, as an attribute of sales appeal at least,

even if mechanically of small moment, and extreme economy in production cost. This latter manifests itself in susceptibility to mass production, in the reduction in amount and expense of material used, and, of probably greatest moment, in reduced labor costs. Other advantageous attributes include easy and cheap installation, susceptibility of the receptacle to changed contact relation, ease. of attachment of the connectors, etc.

It is among the objects of this inventionftosecure each one of the foregoing advantages in socket receptacles; to provide a radio socket receiving housing, for mounting the sockets on a panel, of novelty and high utilitypto provide a socket housing in which either a laminated or molded socket receptacle is interchangeably mountable; to improve molded sockets; to improve laminated sockets; to improve contacts for receptacles; to provide a metal stamping in which parts have a snap or push fit to assemble a complete socket without eyeletting or riveting and with a minimum of labor; to improve radio socket contacts; to provide improvements on my earlier filed applications Ser. Nos. 25,369 matured into Patent #2,'127,556 August 23, 1938, and 25,055 matured into Patent No. 2,196,697 April 9, 1940; to provide a radio tube socket and mounting plateso arranged that after positioning the plate on a chassis the socket can be removed,

either in whole or in part, to rotate it for varia tion of indexing; and many other objects and advantages as will become more apparent as the description proceeds.

In the preferred embodiment of the invention a metal stamping is providing as the mounting support for the socket, within which a socketing ear portions.

partially in elevation of Fig. 4-represents a fragmentary section through the pan of the assembly of'Fig. 3'showing the integral eyelet formed therewith, 7 1

' Fig. 5 represents a fragmentary plan of a modified form of pan, having integral panel mounting anchoring means,

Figs. 6 and 7 represent fragmentary sections the fastening means of Fig. 5, in two stages of anchoring,

,Fig. 8 represents a mounting assembly, Y M

Fig. 9 represents a further modified form of mounting. r

An important factor in the invention is the facilitation of under ing, and some preliminary consideration may be given to this part of the development. The panel of .a radio receiving chassis, of suitable material,

is provided with an aperture-usually circular, within which the socket receptacleis to be disposed. An annular opening oval, square, or any other desired contour may be provided, according to the particular demands. The radio socket receptacle is to be mounted either directly in the aperture, supported by the edges of the panel surrounding the aperture, as will later be discussed, or by means of a subsurface support will be mounted on the panel in alignment with the aperture.

forming animportant part of this in "ention comprises a metal stamping or socket mounting, having an upper substantially plane face; merging into a substantially cylindrical wall; The short flange surrounding the annular 'aperture merges into the cylindrical wall, and completes the stamping. Obviously the sizes and shapes of the various parts just recited will be changed in'accordance with conditions and demands. Under certain conditions, for instance, the flange will be extended to form a substantially closed lower floor within which the radio tube receptacle will.

be disposed, depending upon side wall, among other things, away to form mere supporting legs in place of the complete flange shown. modified flanges will be discussed later herein. The elemental complete flange" which is sometimes preferred is shown. The upper, surface preferably has two diametrically opposed secur- The stamping, cage, mounting support, or pan, is preferably formed of resilient sheet metal, although molded metal or insulating materials may be used. The mountthe height of the .ing support or supporting .frame-is obviously a cheap and relatively inexpensive item, using a minimum of material and labor. in its production.

It being desired to mount radio socket recep tacles within the supporting pan easily and modified form of pan panel or over pan'el-mountis not necessary as The preferred form of sub-surface support;

or it may be cut Various forms of -.or whether itcomprises two elements including the type normally called ternatively proposed,

. ceive the extremity anchor the whole in the pan.

cheaply, it is'desired to provide some means for facilitating the entry of the sockets, while acting to anchor the parts securely against undesired withdrawal after positioning. While it will be evident that if desired suitably independent fastening means, such as screws, bolts and the like may be resorted to in securing the broader advantages of the pan supstaples, eyelets,

port, yet this is not preferred, and it is preferred to so form the pan that automatic locking assembly follows the mere associationof the elef ments.

It will be recognized-that in its broader aspects it makes no particular difierence what sort of radio socket is associated with the metal stamping or mounting frame, whether molded as described, or molded in part and laminated inlpart,

"laminated."

The utilization of portions of the flange of the pan for indexing purposes is carried further forinsulating sheets of Thus, in the formation of the stamping the metal =of the attaching ear 2 I! of the pan, or other supporting element, is drawn to form the integral more or less elongated cylindrical stud or eyelet 2|3 capable of passing through the eyelet aperture in the chassis panel II). It is frequently desirable to efiect a sub-assembly mounting in which, the socket is mounted in the panel temporarily so as to be available for eventual ane choring by eyeletting operations. This integral securing element just described facilitates this,

t given an initial either by providing a resilient bulge or the like to the cylinder so as to secure frictional mounting and engagement in the panel aperture, or by'the modification shown in Fig. 8. In this form of the invention. the attaching ear M2 carrying the integral attaching cylinder 2|! is p out of the plane ofv the socket, in either direction but'preferablyupflare or bend wardly. The subassembly mounting requires pressure on the socket to bend the attaching ear to a position of substantial planarity, or at'least ward in the disclosure of Figs. 1, 2, etc. The pan I05 has the flange more or less elongated tongues l91 bent upward; ly to substantial parallelism with the vertical wall 198 of the pan,'and of which .there are at least I96 to which is attached the one, and preferably a pair,'dis posed diametrically opposite toea'ch other. The locking ears 200 of the construction previously described, or com prised of any of the resilient locking devices alare formed in the pan in position to engage thesocket to be described.

The lower plate of the socket has the enlarged central guide aperture202, so large as to be out of contact radio tube to be inserted, and the plurality of the contact apertures 203 disposed in a concentric circle about the guide aperture. Th plate 2M has a'plurality, preferably, of recesses 204 in its periphery," and is of proper size and shape to fit in the pan I95 with the upstandingstuds or tongues I31 disposed in selected recesses 204.

The upper molded plate 205 include the anchoring recesses I85. 0n the lower surface of the plate there may be formed shallow ribs or-radial barriers between contact apertures 203. The lower surface is also provided with a plurality of wells or perpendicular apertures 206 and extending deep enough into theupper plate to reof the upstanding lug on the flange. I The mode of assembly of the socket and stamping support includes the mounting of the f contacts in either plate, the association of the other plate therewith whole, or successive parts,

' ever, in the interest of economy, and the facilitation of mounting of the sockets on the chassis,

and especially to facilitate sub-assembly mount- 4 ing, any of the metal stampings shown may be modified in accordance with the disclosure of Figs. 2, etc., to provide integral attaching means.

the flange indexing both plates and preventing relative rotative mountil the integral cylinder mounted thereon is straightened out sufflciently as to alignwith the aperture in the panel III to permit entry therein.

Release permits the resilience of the attaching ears to assert itself to spring out of the plane of the socket to a degree such as to insure a good frictional engagement laterally between th insocket in place until lng step of upsetting or turning over the end of the eyelet on the other in Fig; 3.

with the guide stud onthe tegral stub eyelet or cylinder, which will hold the the final complete anchorside of the panel as shown A modification of this feature is shown in Figs. 5, 6 and 7. In this form the metal is not drawn to form the cylinder of at opposite ends of a'slot or opening 6 in the attaching ear 2H. Either or both tongues may be given a curvature or re- 'silient bulge II! which serves a dual purpose by guiding the tongue throughthe panel opening and engaging frictionally the surface; of the panel the bend so that upsetting or-punching causes the.

adjacent to the opening 9, and also serves to start tongue to bend upon itself, as shown at 220, to

; anchor ,the socket.

I claim:

1. A radio tube socket supporting element comprising an-integral metal stamping having va substantially planar socket securing portion,

a pair of integral resilient ears initially bent out of the plane of the portions, integral extensions on said ears normally of to enter apertures in a mounting panel when the tures under spring pressure released. t V

2. A radio tube socket supporting element substantially planar pair of integral resilient ears initiallybent out ears are bent to alignment with the securing frictionally in such aperwhenthe ears are portions and to bear comprising an integral metal stamping'having a socket securing portion, a

of the plane of the portions, integral open; ended cylindrical extensions on said ears normally of the ears and arranged to enter apertures in a mounting panel when the ears are bent t alignment with the securing portions and'to bear frictionally in such apertures under spring pressure when the ears are released.

HUGH H. EBY.

Fig. 2, but is struck out in the form of a pair of spaced tongues 2 l4 and 2|! extending vertically the ears and arranged.

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