Improvements in the Method of Securing Carriage Lamp Handles to their Sockets.
Year: 1890

page_text: Date of Application, 5th Sept., 1890
Complete Specification Left, 4th June, 1891-Accepted, 4th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Method of Securing Carriage Lamp Handles to
their Sockets.
We WILLIAM HENRY HIGGITT, and WALTER CROWSON, trading as Higgitt
and Crowson, of 104 Great Hampton Street, Birmingham in the County of
Warwick Carriage Lamp Manufacturers, do hereby declare the nature of this
invention to be as follows:-
This invention relates to improvements in the method or arrangement of parts,
whereby the handles of carriage lamps are secured to their sockets, and consists as
follows:-
Upon the exterior of the upper end of the handle, that is, at that part which
enters the socket of the lamp, we provide a spring catch, or a catch acted upon
by a spring, which said catch piece extends downwards and terminates with a
thumb press piece; or its equivalent. This catch piece is somewhat long and
narrow say about a quarter of an inch wide, more or less, and at a point near its
front or lower end, has a set back formed upon it which forms the catch part. The
tendency of this catch piece is always to stand outwards, but capable of being
compressed close to the handle by the aforesaid thumb piece.
Again. Within the socket part, a vertical groove is now formed, to permit of
the passing upwards thereinto, of the catch piece &c. upon the handle, and near
its lower end, is a projection or catch part corresponding as a counterpart, to the
set back or catch, upon the catch piece upon the handle.
Thus when the handle is pussed up into the socket, the front of the catch piece
rides upon the projection or catch part in the socket, until the former has
passed the latter, when it drops behind it with a click, and the handle is secured
thereto.
In order to remove the handle, the thumb piece is pressed downwards, which
frees the catch upon the handle from the catch within the socket, and the former
may then be withdrawn.
Dated this 4th day of September 1890.
CHARLES T. POWELL,
Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements in the Method of Securing Carriage Lamp Handles to
their Sockets.
We WILLIAM HENRY HIGGITT, and WALTER CROWSON, trading as Higgitt
and Crowson, of 104 Great Hampton Street Birmingham, in the County of
Warwick, Carriage Lamp Manufacturers 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 improvements in the method or arrangement of parts,
whereby the handles of carriage lamps are secured to their sockets, and consists as
follows:-
Upon the exterior of the upper end of the handle that is, at that part which
enters the socket of the lamp, we provide a spring catch, or a catch acted upon
by a spring, which said catch piece extends downwards and terminates with a
thumb press piece; or its equivalent. This catch piece is somewhat long and
narrow say about a quarter of an inch wide, more or less, and at a point near its

page_text: front or lower end, has a set back formed upon it which forms the catch part. The
tendency of this catch piece is always to stand outwards, but capable of being
compressed close to the handle by the aforesaid thumb piece.
Again. Within the socket part, a vertical groove is now formed, to permit of
the passing upwards thereinto of the enteh piece &c. upon the handle, and near
its lower end, is a projection or catch part corresponding as a counterpart, to the
set back or catch, upon the catch piece upon the handle.
Thus when the handle is passed up into the socket, the front of the catch
piece rides upon the projection or catch part in the socket until the former has
passed the latter, when it drops behind it with a click, and the handle is secured
thereto.
In order to remove the handle, the thumb piece is pressed downwards, which
freas the catch upon the handle from the catch within the socket, and the former
may then be withdrawn.
In order to more clearly explain this our invention we have appended hereunto
an illustrative sheet of drawings upon which are figures and numbers of
reference.
Fig. 1, is an external part sectional view of a lamp having this our improved
fastening attached thereto,
Fig. 2, is a detailed sectional view of the socket part of the lamp as prepared
to receive the handle or candle tube as shown in Fig. 3.
Fig. 4, is a front view of Fig. 3.
Fig. 5, is a sectional plan on line A-B Fig. 2.
Fig. 6, is a sectional view of the socket part of a lamp showing a modified form
of this our invention.
Fig. 7, is a part sectional view of the handle or candle tube as arranged to suit
Fig. 6.
Fig. 8, is a front view of Fig. 7, also shewing the nozzle attached.
1, is the candle tube or handle. 2 is the socket upon the lower part of the lamp
into which the upper part of the handle enters.
Upon this handle we provide a spring catch 3, which extends downwards_and
terminates with a thumb press piece 4. At 3, upon this spring catch is a set back
or catch part formed. The tendency of this catch piece is to always stand
outwards, but capable of being compressed close to the handle by the thumb
piece 4.
Again. Within the socket part 2, a vertical groove 6, (see Fig. 5) is made, to
permit of the passing upwards thereinto of the spring catch piece 3, upon the
handle. Near the lower end of this groove 6, is provided a projection 7, corre-
sponding as a counterpart to the set back or catch 5, upon the spring catch 3.
Again. In Figs. 6, 7 & 8, we have shown a modified form of this our invention,
in which the groove in the socket may be dispensed with and placed in the upper
end of the handle instead. In this is only necessary to have the groove open
sufficiently high, (from 8 to 9) to permit of the lower part of the spring extending
therefrom as seen in Figs. 7 & 8.
We make the socket part 2, a little larger than before, and provide upon the
handle, 1, an external tube 10, to slide thereinto, and having ent therein the groove
or slot 8 to 9 before mentioned.
The spring 8, is secured to the inner tube.
At the lower end of the socket 2", is formed the all round set back or catch 7*,
upon which rests the catch part 5, of the spring.
Thus when the handle is passed up into the socket the front of the spring 3,
rides upon the projection 7, or 7", until the former has passed the latter, when it
drops behind it with a click and the handle is then secure.
As before stated in order to remove the handle the thumb piece 4, is pressed
downwards, which frees the catch 5, clear of the projection 7 or 7", within the
socket, when the handle may be withdrawn.
The nozzle 11, may be attached to the candle tube in any of the ordinary ways

page_text: or by a spring catch similar to that used for the securing of the handle to the
socket.
Having now particularly described and ascertained the nature of this our inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
:-
The securing of carriage lamp handles or candle tubes, to the sockets of such
lamps by means of the spring 3, having catch 5, or its equivalent, and press part 4,
taking into or upon a projection 7 or 7, substantially as described and illustrated
upon the drawings.
Dated this 2nd day of June 1891
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicants' Agent.