Improvements in or connected with Electric Lampholders, Sockets, and the like.
Year: 1896

page_text: Date of Application, 13th Nov., 1896
Complete Specification Left. 13th Aug 1807 Anted new a
Date of Application, 13th Nov., 1896
Complete Specification Left. 13th Aug 1807 Accepted, 25th Sept., 1897
PROVISIONAL SPECIFICATION.
Improvements in or connected with Electric Lampholders, Sockets,
and the like.
JOHN BENJAMIN VERITY Plume Works, Aston Birmingham, Electrical Engineer
do hereby declare the nature of this invention to be as follows:-
This invention consists of the improvements described hereunder in or connected
with electric lampholders, sockets, connections, and the like, and the object of
this invention is so to construct electric lampholders, sockets, connections and the
like that greater economy of space is obtained than is usually the case, and an easier
and cheaper method of manufacture rendered possible. In existing makes of
lampholders where economy of space is aimed at, (chiefly for the sake of obtaining
a neater and more compact appearance), the plungers and plunger springs are con-
fined in chambers or cylinders formed partly by holes drilled in the terminal
blocks and partly by hollow screws fitting in these holes. The latter are also
utilized to form a fixing for the terminals on to the insulating block.
My invention provides for an arrangement which renders it possible to dispense
with these hollow screws. I provide a suitable container for the plunger spring,
and this I make either of a nipple, tube, hollow rod, stamping, wire, or frame,
or by extending the terminal itself to form the container; I close the upper or
top end of the container by means of a cap, screw, plug, nut, washer, or similar
suitable device, or the metal forming the end of the container may be so bent,
spun, enlarged, or compressed as to suitably confine the plunger spring within the
container, affording it a base upon which to act. At the same time this cap,
screw, or similar device for closing the end of the container, acts as a means of
fixing the terminal, with its plunger etc., to the insulating block. This is done
in several ways, for instance by counter-sinking the aperture in the insulating
block so that a shoulder is formed on which the screw, cap, nut, or other device
for closing the top end of the container may rest, thus securing the terminal and
its various parts to the insulating block.
COMPLETE SPECIFICATION.
Improvements in or connected with Electric Lampholders, Sockets,
and the like.
I JOHN BENJAMIN VERITY of Plume Works, Aston, in the County of Warwick-
shire, Electrical Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This invention relates to a compact and simple construction

page_text: the base of an electric glow lamp as we shall describe, referring to the accompanying
drawings:-
Figs. 1 and 2 are vertical sections of two modifications of my invention.
Fig. 3 shows a plan of the socket constructed according to my invention.
On a base A in Fig. 1, of ceramic or other suitable insulating material two
metallic holders C are fixed in position by means of hollow nipples or tubes D
passing through the insulating base A and secured on its other side by the flanged
caps, screws or nuts B. The metallic holders Care provided with terminal
screws E for binding the electric wires carrying current to the glow lamp. The
plungers Fact in the hollow tubes or nipples D, or, as shown in Fig. 2, the
holders C may be so shaped as to form containers for the plungers F and their
springs, the said holders being held in position on the insulating base A by means
of a Hanged cap, screw or nut L.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. A socket for electric glow lamps consisting of a base of insulating material
to which are secured two metal plunger holders by means of hollow tubes or
nipples passing through the base and closed by a cap screw or nut.
2. A socket for electric glow lamps consisting of a base of insulating material
to which are attached two metal plunger holders so shaped that by means of
a cap, screw or nut on the other side of the base they are thereby secured thereto.
Dated this 12th day of August 1897.
JOHN B. VERITY.