Improvements in Sockets or Holders for Electric Incandescent Lamps.
Year: 1896

page_text: Date of Application, 30th May, 1896
Complete Specification Left, 1st Mar., 1897-Accepted, 3rd Apr., 1897
PROVISIONAL SPECIFICATION.
Improvements in Sockets or Holders for Electric Incandescent
Lamps.
I, JACQUES KATZENSTEIN, Electrical Engineer, of 24 Zollstrasse, Zurich, in
the Republic of Switzerland, do hereby declare the nature of this invention to be
as follows:-
The invention has for its object improvements in sockets or holders for electric
incandescent lamps. For this purpose I form the body, cover and carrier for the
contacts and metallic screwed socket of porcelain or earthenware.
The body of the socket or holder and the cover are formed with corresponding
screw threads to enable the parts to be readily connected and disconnected. The
body of the holder is formed with a space within which the carrier for the contacts
and metallic screw socket is placed and wherein it is held by the screw cover;
said carrier has recesses to receive conducting pieces connected with the conducting
wires and holes are formed in such carrier and conducting pieces to receive three
screws, two of which connect the metallic socket thereto whilst one of said screws.
and another screw also screw into the conducting pieces.
Thus one of these last screws will connect the side of the metallic socket and
consequently the side of the lamp screws with one conductor and the other or
central screw will connect with the other conductor and form a contact for the
crown of the lamp screw.
The head of the metallic socket is of annular form and fits a corresponding
recess in the carrier.
The cover of the body is also formed with a central internal screw thread to
screw on to the usual nipple.
If desired the conductor carrier may be made of other non conducting material.
Dated this 30th day of Merz 1896
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.
Improvements in Sockets or Holders for Electric Incandescent
Lamps.
I, JACQUES KATZENSTEIN, Electrical Engineer, of 24 Zollstrasse, Zurich, in
the Republic of Switzerland, 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 :-
The invention has for its object improvements in sockets or holders for electric
incandescent lamns

page_text: I will describe my invention in connection with the accompanying drawings, in
which :-
Fig. 1 is a vertical section of an electric incandescent lamp socket complete.
Fig. 2 is a vertical section and Fig. 3 is a plan of the body.
Fig. 4 is a vertical section and Fig. 5 is a plan of the head or cover.
Fig. 6 is a vertical section and Fig. 7 is a plan of the carrier for the contacts,
terminals and metallic screw socket, and
Fig. 8 is a vertical section and Fig. 9 is a plan of the metallic screw socket.
According to my invention I form the body a; head or cover b and carrier c for
the terminals de, contact and metallic screwed socket g, of porcelain or earthenware.
If desired the carrier c may be made of other non-conducting material..
The body of the socket or holder a and the head or cover b are formed with
corresponding screw threads a¹¹ to enable said parts to be readily connected and
disconnected.
The body a of the holder is formed with a space a³, within which the carrier e is
placed and wherein it is held by the screw head or cover b; the said carrier c has
recesses c¹ to receive conducting pieces or terminals de and the conducting
piece f, and a recess c³ to receive the annular shaped head of the metallic socket g.
Holes are formed in the carrier c and conducting pieces d. e. f, to receive three
screws i. j. k, two of which, namely i, j, connect the metallic socket g thereto, whilst
one of said screws, namely j, and the third screw k, which passes through the
conducting piece f, also screw into the conducting pieces or terminals de and
securely fix all such parts to the carrier c.
Thus one of the last screws, the screw j, will connect the side of the metallic
socket g, and consequently the side of the lamp screw, with the conducting piece
or terminal e, and the other or central screw will connect the conducting piece f
with the terminal d and form a contact for the crown of the lamp.
The head or cover b is also formed with a central internal screw thread 2 to
screw on to the usual nipple .
To the terminals de the conducting wires m m¹ are attached by screws as
shown.
I would here remark that, when applying my invention to holders wherein the
electric lamp is secured by bayonet joints, the slots to receive the studs on the
lamp head may be formed in the sides of the body a, and the carrier e will have
the usual spring contacts fixed thereto.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. A socket or holder for electric incandescent lamps comprising a body and
head or cover formed of porcelain or earthenware screwed together, and a carrier
to which are connected the conductors, terminals and metallic screw socket to
receive the lamp screw, such carrier being formed of earthenware or of other
non-conducting material, substantially as herein set forth.
2. In a socket or holder for electric incandescent lamps, the combination and
arrangement of parts substantially as herein set forth.
3. The improved socket or holder for electric incandescent lamps substantially
as herein set forth.
Dated thin 1nd In
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.