Improvements in and relating to Lamps for Velocipedes.
Year: 1891

page_text: Date of Application, 5th Oct., 1891
Complete Specification Left, 30th June, 1892—Accepted, 6th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to Lamps for Velocipedes.
We JOSEPH LUCAS and HARRY LUCAS trading as J. Lucas & Son of the Tom
Bowling Lamp Works, Little King Street, Birmingham in the County of
Warwickshire, Lamp Manufacturers, and THOMAS BROADBENT of the aforesaid
Works, Tin-plate Worker, do hereby declare the nature of this invention to be as-
follows:-
Our invention relates to an improved socket for attaching cycle lamps to the
brackets adapted to carry them, and it consists in the use of a spring to contract
the width of the orifice of the socket, so as to afford the said socket a good grip on
the bracket.
In carrying our invention into practice, we form the socket of the usual shape.
but of greater thickness, to admit of the introduction of a false back which is
kept up by a suitable spring so as to close the orifice of the socket when the rubber
or other lining is in place.
To enable the socket to be placed on the bracket adapted to carry the lamp, it
is necessary to pull back the false back of the socket, and to effect this we use a
finger lever fulcrated on the back of the socket and connected with the falso back
thereof by a suitable link. We prefer to make this finger lever detachable so that
a rider may detach it from the lamp after the lamp is placed on the bracket, and so
prevent the surreptitious removal of the lamp.
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicants
COMPLETE SPECIFICATION.
Improvements in and relating to Lamps for Velocipedes.
We JOSEPH LUCAS and HARRY LUCAS, trading as J. Lucas & Son of the
Tom Bowling Lamp Works, Little King Street, Birmingham, in the County of
Warwick, Lamp Manufacturers, and Thomas BroaDBENT of the aforesaid works;
Tin-plate Worker, 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 :-
Our invention relates to an improved socket for attaching cycle lamps to the
brackets adapted to carry them, and it consists in the use of a spring to contract
the width of the socket so as to afford the said socket a good grip on the bracket.
In carrying our invention into practice, we form the socket of the usual shape
but of greater thickness to admit of the introduction of a false back which is kept.
up by a suitable spring so as to close the orifice of the socket when the rubber or
other lining is in place.
To enable the socket to be placed on the bracket adapted to carry the lamp, it
is necessary to pull back the false back of the socket, and to effect this we use a
finger lever fulcrated on the back of the socket and connected with the false back
thereof by a suitable link. We prefer to make this finger lever detachable so that
a rider may detach it from the lamp after the lamp is placed on the bracket.
and so prevent the surreptitious removal of the lamp.

page_text: In order that our invention may be fully understood we will more particularly
describe it making reference to the accompanying drawing, in which
Figure 1. is a sectional view-in side elevation of our improved socket.
Figure 2. is a view in end elevation thereof and Figure 3. is a sectional view in
plan thereof on line x, x Figure 2.
Figure 4. is a sectional view in side elevation showing another form of our
improved socket, and Figure 5 is a plan view-partly in section of our improved
socket with a detachable operating lever.
Throughout these views similar parts are marked with like letters of reference.
The socket A. is of the usual construction but made of increased width or
thickness. It carries the usual eyes a, a, for the attachment of the supporting
arms. In the socket is a plate or false back B, between which and the back of the
socket a spring Cis placed, adapted to contact that part of the socket adapted to
receive the lamp bracket X, the said part having the usual rubber lining D. The
spring C may be either a spiral one as shown by Figure 1. or a bow-shaped plate
spring as shown by Figure 4 of the accompanying drawing.
To the back of the plate B is attached a pin or link E sufficiently long to pass
through the back of the socket as shown, to enable the plate or false back B to be
drawn back to open the orifice of the socket. The pin or link E may be drawn
back either by a finger lever F pivotted to the back of the socket as shown by
Figure 2, or by means of a nut F threaded on to the end of the said pin or link É
and bearing against the back of the socket as shown by Figure 4. Instead of
pivotting the finger lever F to the back of the socket it may be provided with .a
snug adapted to fit in a recess a' formed in or on the back of the socket as
shown by Figure 5. so that it may readily be removed when it is not required.
We wish it to be particularly understood that we do not limit ourselves to the
precise details of construction hereinbefore described and illustrated by the
accompanying drawing, but that we hold ourselves at liberty to make such changes
and alterations as fairly fall within the spirit and scope of our invention.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1st. The improved lamp socket as herein before described and shown.
2nd. In a socket for a velocipede lamp, the combination of a plate or false back
placed within the socket and forced up to reduce the width thereof by a spring
acting between the said plate or false back and the back of the socket, and of a
device to draw back the false back to open the socket, as and for the purpose set
forth.
3rd. In a velocipede lamp, the combination with the socket A. adapted to receive
the supporting bracket, of the plate or false back B, of the pin or link E, and of
the withdrawing lever or nut F, all combined arranged and operating as and for the
purpose set forth.
4th. In a velocipede lamp, the combination with the socket A, of the plate or false
back B, of the spring C, of the flexible lining D, of the pin or link E, of the
withdrawing lever F or its equivalent, all combined arranged and operating as and
for the purpose set forth.