Improvements in the Manufacture of Electric Bell Push Fittings.
Year: 1888

page_text: Date of Application, 30th Oct., 1888
Complete Specification Left. 25th July, 1889-Accepted, 14th Sept.. 1889
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Electric Bell Push Fittings.
I, CHARLES JAMES HARCOURT of the firm of R. and C. Harcourt and Son of
223 Moseley Street, Birmingham, in the County of Warwick, Brassfounder, do
hereby declare the nature of this invention to be as follows:-
The ordinary mode of constructing electric bell push fittings is to make a frame,
wholly of one material, into the base of which is inserted the non-conductor needed
for carrying the metallic contact pieces, by which connection between the poles of
the electric motor is obtained, when, by means of a push piece, such contact pieces
are caused to touch each other.
ti
My invention consists in so arranging the construction of electric bell push fittings
that two materials may be used instead of only one, in such a way as to facilitate
manufacture and ornamentation. The frame, which carries the non-conductor
carrying the metallic contact pieces before mentioned, I make of metal, but I leave
the front portion open and, by means of a shoulder or set off," which I make in the
interior of such metallic frame, I provide a ledge or seat, against which to rest, or
place a disc or other shaped body of some non-conducting material, (I prefer glass,
earthenware, china or dried wood), which is secured in its position by the metal
surrounding it being pressed tightly over the circumferential edge, and which is
formed with a central hole to receive the ordinary push piece.
Dive of Ontaban 1000
CHARLES JAMES HARCOURT.
By Harris & Mills,
23, Southampton Buildings, Agents.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Electric Bell Push Fittings.
I, CHARLES JAMES HARCOURT of the firm of R. and C. Harcourt and Son, of
223 Moseley Street, Birmingham, in the County of Warwick, Brassfounder, do
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 ordinary mode of constructing electric bell push fittings is to make a frame,
wholly of one material, into the base of which is inserted the non-conductor needed
for carrying the metallic contact pieces, by which connection between the poles of
the electric motor is obtained, when, by means of a push piece, such contact pieces
are caused to touch each other.
::
My invention consists in so arranging the construction of electric bell push
fittings that two materials may be used, instead of only one, in such a way as to
facilitate manufacture and ornamentation. The frame, which carries the non-
conductor carrying the metallic contact pieces before mentioned, I make of metal,
set off,"
but I leave the front portion open and, by means of a shoulder or
which make in the interior of such metallic frame, I provide a ledge or seat,
against which to rest or place a disc or other shaped body of some non-conducting
material, (I prefer glass, earthenware, china, or dried wood) which is secured in
its position by the metal surrounding it being pressed tightly over the circumn-
ferential edge, and which is formed with a central hole to receive the ordinary push
niece.

page_text: describe the same.
Gue accompanying drawing, more fully to
DESCRIPTION OF THE DRAWING.
Figure 1 is a face view, and Figure 2 is a cross section on the line 1. 1. of figure 1;
of an electric bell push fitting constructed according to my invention; and Figure 3
is a cross section of the frame separately.
The frame, which carries the non-conductor b carrying the metallic contact
pieces c, d, I make of a metal ring or base a, but I leave the front open and, by
forming a shoulder or "
set off" a' in the interior of the ring or base a, I provide a
ledge or seat, against which to rest or place a disc or other shaped body a² of some
non-conducting material, which is secured in position by the metal surrounding it
being pressed tightly over its circumferential edge, and such disc or other shaped
body a² is formed with a central hole a³ to receive the ordinary push piece e, as is
well understood.
It will be evident that the design of the parts a, a² may he variously modified
according to taste.
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. The combination of two materials in the construction of the. frame of electric
bell push fittings, substantially as herein shown and described.
2. In electric bell push fittings, a frame consisting of a metal ring or base, and a
non-conducting disc or other shaped body fitted with the ordinary push piece, combined
therewith by forming a ledge or "set off" in the ring or base to receive the said 2
disc or other shaped body and by pressing the metal surrounding the latter
tightly over its circumferential edge, substantially as herein shown and described.
Dated this 25th day of July 1889.
CHARLES JAMES HARCOURT.
By Harris & Mills,
23, Southampton Buildings, London, Agents.