US1806314A - Electric lamp holder or socket - Google Patents

Description

H. E. SLADE ET AL ELECTRIC LAMP HOLDER on SOCKET ,May 19, 1931.

Filed March 10, 1927 Patented May 19, 1931 STATES Pal-Tsar oFFIcE HAROLD E. SLADE, F GLEN RIDGE, AND JOHN GEHRING, 0F JERSEY CITY, NEW JERSEY, ASSIGNOBS T0 BEAVER MACHINE & TQOL CO., INC, OE NEWARK, NEW

JERSEY ELECTRIC LAM]? HOLDER OR SOCKET Application filed March 10, 1927.

Our invention relates to lamp holders and in particular to the type commonly known as candle sockets.

The object of the invention is to provide an adjustable socket which has the advantages and features characteristic of the nonadjustable type.

A further object is to provide a socket m that is simple, sturdy, economical to manufacture and easy to install.

A further object is to provide an adjustable socket in which the base member is so constructed as to eliminate one of the supporting members now in common use.

Other objects will be apparent as the specification progresses.

The specification specifically shows the preferred form in which our invention is embodied, but as other forms will be apparent to those skilled in the art to which this invention relates and without departing from the spirit and scope of this invention, we do not limit ourselves to the exact structures shown.

There are in use two distinct types of candle sockets; the non-extension type and the extension or adjustable type. Each has its particular advantages in its sphere of usefulness and application.

The non-extension type has a very simple supporting element, usually consisting of a U shaped yoke. The open or top end of this yoke fastens directly to the porcelain base, while the closed end is provided with a threaded nipple for attaching the socket to the fixture with which it is to be associated. These yokes are supplied in varying fixed lengths, and sockets provided with them are 40 used in large volume in what may be termed standard fixtures. That is, fixtures in which the lengths of the candles have been standardized.

The extension or adjustable type sockets are more elaborate in construction. Generally the supporting element is made in two parts. The lower part is constructed so as to fasten to the fixture, and the upper part is arranged for fastening to the base of the socket proper. Provision is made whereby the two parts may be held together in any Serial No. 174,177.

fixed position and in any desired overall length. Such sockets are used in special fixtures employing different length candles which are designed to obtain specific artistic effects.

The extension type sockets are considerably more expensive than the non-extension type. As the fundamental application and use is the same for both types, it is the purpose of our invention to provide a single type socket that will take the place of the two now in use.

To this end we employ elements as shown by the drawings, in which:

Figure 1 is a sectional elevation thru the center line of the socket.

Figure 2 is a sectional elevation taken on line 22, Figure 1.

Figure 3 is a plan view of Figure 1.

Figure 4 is a sectional plan view taken on line 4%, Figure 2.

The base 1 is made of porcelain or other suitable insulating material and is provided with a recess 2 at the upper end for holding in exact relationship the body section 3 of the wire terminal 4:.

The screw shell of lamp holder 5 is supported by the base 1, and the bottom 6 of the shell is in direct contact with the body 3 of the terminal 4. A second terminal 7, having a body section 8, and flexible section 9, is separated and insulated from the shell 5 and terminal 4 by the insulating washer 10. In order that the shell 5 will not rotate when a lamp base (.not shown) is inserted, lugs 11 are projected from the body of the base 1, and pass thru suitable apertures in the shell 5 and insulator 10.

To bind the terminal 4, shell 5, terminal 7 and insulator into a fixed unitary structure a rivet or eyelet 12 is employed; being passed thru a central hole 13 in the base and other elements and then spun over as at 1 1- or otherwise secured.

The base 1 has a slot 15, beginning at the lower end of the base and terminating substantially near the upper end.

Two grooves 16 are provided and which are parallel with the slot 15.

Between the grooves 16 is a clamping surface 17 set in'from the outer periphery of the base'and at right angles to the grooves. At the opposite ends of the slot is another clamping surface 18; The supporting element is substantially a channel member 19 terminating in a nipp'le 20. Flanges 21'of the supporting element slide within the basegrooves 16, effectively aligning the base member in addition to l strengthening the support. Nearithe vupper end of the'channel member 19 a threaded hole '22, is provided, into which a screw 23 is inserted. By enteringthe body offthe screw 23 in the slot 15, and. theflanges 21 1 in the grooves 16 it is possible to clamp the r. I

' support-element in any fixed relationship with the base throughout the-entire range of the slot 15. -The, clamping is -accomplished by the head 24 of the screw 23 rest- 'ing against the, clamping surface 18,'and the channel member 19 resting against the clamp- 1 ing surface 17 and the threaded portion of "the screw beingdriven tightly into the-hol 22 of the supporting element.

525 The nipple is threaded at 25 to provide means for securing the socket to the fixturea v 1 I Tlieynovel feature of our invention isthe combination of the slotted base together with'ga slidin'g supporting element and having described our invention, we claim:

' V 1-; An electric socket or lamp holder con-' sisting of a base and a supporting member; said base being provided with'a transverse :slot running substantially the length of the base, said, supporting member comprising a nipple section and a channel section; to-, gether with'means' passing thru said slot in said base and into said channelsection of "i410 said support to rigidly unite, in any variable relationship, said'base andsaid support;

together witha lamp holder or shell and terminals for attaching feed wires to said socket? V c 2..An-electric socket comprising a lamp holding-shell, a plurality of wire terminals,

base, and a supporting member; said base beingiprovided with a'transverse' slot sub stantiallyithelength ofrthe base and channels situated either side of said'slot; said supportmember being provided with flanges which slide in said-channels; together with 7 means Jpassingthru said slot to maintain in fixed relationship said, support "to said base.

' 1 5-5 Signed at Newark, New Jersey this 4cth day. of March, 1927. 7 i V i HARQLD. E. SLADE. V V

JOHN G'EHRI'NG,

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