Improvements in Holders for Electric Glow Lamps.
Year: 1898

page_text: Date of Application, 1st Jan., 1898-Accepted, 12th Feb., 1898
COMPLETE SPECIFICATION.
Improvements in Holders for Electric Glow Lamps.
We, HENRY CHARLES Gover, Secretary of The Edison and Swan United Electric
Light Company Limited, 36, Queen Street, Cannon Street, in the County of London,
CHARLES FARADAY PROCTOR and WILLIAM GEORGE PIPKIN, Electricians, both of
The Edison & Swan United Electric Light Company's Works, Ponders End in the
County of Middlesex, 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 cheap and simple construction of the holder for an
electric glow lamp, as we shall describe referring to the accompanying drawings.
Fig. 1 is an elevation of a holder according to this invention. Fig. 2 is a vertical
section and Fig. 3 is a sectional plan on the line 3-3 of Fig. 1 and Fig. 4 is a
section on the line 4-4 of Fig. 3.
Figs. 5, 6 and 7 are respectively an elevation a section and a sectional plan of a
modification.
Fig. 8 is a vertical section of another modification and Fig. 9 is a plan of the non-
conducting base with the filling pieces removed.
Referring first to Figs. 1, 2, 3 and 4 the non conducting base is divided longi-
tudinally into two parts B and B', one of which B has two recesses in which are
embedded the sockets for the spring contact plungers P P having the conducting
wires attached to their bases. The two parts 13 B are put together after the plunger
sockets and wires attached have been inserted and are held together by the casing C
on which is screwed a cover 1) which may serve also to hold a reflector R between
it and a ring A screwed on the cover.
According to the modification shewn in Figs. 5, 6 and 7 the two parts B B' of
the base are equal and similar each having one of the plunger sockets embedded in
it.
As shewn in Figs. 8 and 9, the non conducting base B has the two plunger
sockets inserted in holes formed in it, the wires being fixed in the sockets by set
screws before inserting the sockets.
Between the sockets part of the base projects as an insulating partition B2, and on
each side of it after the sockets are inserted, is placed a filling piece F the whole
being held in the casing C.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what we
claim is:-
1. A holder for an electric glow lamp having the non conducting base divided
longitudinally into two parts one of which is recessed to receive the spring
plunger sockets, substantially as described with reference to Figs. 1 to 4.
2. The modified holder in which the base is divided longitudinally into two
equal parts each recessed to receive one of the spring plunger sockets, substantially
as described with reference to Figs. 5, 6 and 7.

page_text: 3. The modified holder having the sockets inserted in holes through the non
conducting base and covered by filling pieces substantially as described, with
reference to Figs. 8 and 9.
.
C
1000
ABEL & IMRAY,
Agents for the Applicants.