Improvements in Carriage Lamps.
Year: 1892

page_text: Date of Application, 22nd Jan., 1892
Complete Specification Left, 19th Oct., 1892-Accepted, 19th Nov., 1892
Improvements in Carriage Lamps.
WILLIAM TUCKER WEBBER, of City Lamp Works, Bishop Street, in the
City of Birmingham Lamp Manufacturer do hereby declare the nature of this
invention to be as follows:-
This invention relates to the arrangement of mechanism by which the handle of
a carriage lamp is secured to its socket, and its object is to provide that the said
handle may be partially fastened by simple insertion into the socket, that is, it shall
be sufficiently fastened to resist becoming detached by reason of any shaking or
other action less than wilful removing force, but that it shall be further locked by
the closing of the door of the lamp; and also that whenever the door of the lamp
is opened, the handle may be withdrawn without other manipulation than by taking
hold of the said handle; also if desired that the handle may, by an extra external
manipulation, be withdrawn without opening the door of the said lamp. It consists
as follows: Upon the handle and at such part which comes opposite the chamber
formed at the bottom of the body of the lamp, is formed an all round collar or
bead. Within the socket is a vertical spring catch which is secured at its lower end
to the said socket. The upper end of this spring catch has a crossway groove
which fits onto the collar of the handle when the latter is passed up into position,
and thereby retains it with considerable force, but which nevertheless by wilful
downward force may be drawn therefrom, the spring yielding to permit of such
withdrawal, by reason of the upper and lower edges of the cross groove or of the
collar, or both, being bevilled somewhat. The upper end of this catch is now
carried horizontally until it touches the door (when the latter is closed) so that
when the said door is closed, the spring cannot yield, and hence the handle cannot
be withdrawn until the door is unfastened or opened. If the door is unfastened
only, the act of removing the handle, forces back the spring catch which impinges
upon the inside of the door and thereby necessarily opens it. The closing of the
door however does not in any way push in the catch inasmuch as it automatically
closes by reason of its spring character.
As already described the handle cannot be withdrawn from the socket except
when the lamp door is open, but it is further desirable in some cases that it should
be capable of withdrawal when the said door is closed; this I effect after the
following manner :-
The aforesaid horizontal portion of the spring catch is now made in two parts,
the one part jointed to the other hingewise (horizontally) such outer part being
operated upon by a spring which permits of its being turned round at right angles
to its normal position.
This turning round being effected by a suitable button &c. at the exterior
underside of the bottom; but upon its being loosed, the said spring immediately
returns it to its normal straight line. When in its straight line, its end reaches the
door and operates and is operated upon, in the manner as before described when it
was in one piece, but assuming the door of the lamp to be closed, by first turning
round the button &c., the hinged part is turned to the one side, which permits the
drawing back or the yielding of the spring catch clear of the collar upon the
handle without opening the door, but, unless so held to the one side, the spring
forces it back to the straight line.
This conversion of the straight (unyielding) par of the catch into one whose

page_text: front end may be thus turned aside for the purpose named, may be varied
considerably in its arrangement, and yet effect the same object.
Dated this 21st day of January 1892.
CHARLES T. POWELL,
Applicant's Agent.
improvements in Carriage Lamps.
I WILLIAM TUCKER WEBBER, of City Lamp Works, Bishop Street, in the
City of Birmingham Lamp Manufacturer 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 the arrangement of mechanism by which the handle of
a carriage lamp is secured to its socket, and its object is to provide that the said
handle may be partially fastened by simple insertion into the socket, that is, it shall
be sufficiently fastened to resist becoming detached by reason of any shaking or
other action less than wilful removing force, but that it shall be further locked by
the closing of the door of the lamp; and also that whenever the door of the lamp
is opened, the handle may be withdrawn without other manipulation than by taking
hold of the said handle; also if desired that the handle may, by an extra external
manipulation, be withdrawn without opening the door of the said lamp.
In order to more clearly explain this my invention, and in what manner it may
be performed, I have appended hereunto an illustrative sheet of drawings, upon
which are figures, and numbers of reference, similar numbers referring throughout
the several views to the same thing or part.
Fig. 1, shews a part sectional elevation of this my invention as applied to a
lamp.
Fig. 2, is an enlarged sectional elevation of the socket and lower part of the
lamp body and showing the fastening therein.
Fig. 3, is an enlarged elevation of the handle of the lamp having its portion of
the fastening thereon.
Fig. 4, is a sectional plan view of the socket fastening, on line A-B.
Figs. 5, 6 and 7, are detached detailed front, side and plan views of the spring
catch.
Fig. 8, is an enlarged sectional elevation of the socket and lower part of the
lamp body, showing a modification in the fastening therein.
Figs. 9, 10,.11 & 12 are detached detailed front, side and plan views of the
modified socket.fastening.
It consists as follows:-1, is the body of the lamp, 2, is the door hinged at 3.
4, is the socket into which passes the handle 5. Upon the handle 5, and at such
part which comes opposite the chamber 6, formed at the bottom of the body of the
lamp, is formed an all round collar or bead 7. Within the socket 4, is a vertical
spring catch 8, which is secured at its lower end 9, to the exterior portion of the
said socket 4. The upper end of this spring catch has a crossway groove 10
which fits onto the collar 7, of the handle, when the latter is passed up into position,
and thereby retains it with considerable force, but which nevertheless by wilful
downward force may be drawn therefrom, the spring 8, yielding to permit of such
withdrawal, by reason of the lower edge 11, of the cross groove, or of the upper
and lower edge of the collar 7, or both, being bevilled somewhat. The upper
part 12, of this catch is now carried horizontally until it touches the door 2, see
Fig. 1, (when the latter is closed) so that when the said door is closed, the spring
cannot yield, and hence the handle cannot be withdrawn until the door is unfastened
or opened, as seen in Fig. 2: If the door is unfastened only, the act of removing
the handle, forces back the spring catch which impinges upon the inside of the door

page_text: and thereby necessarily opens it. The closing of the door however does not in any
way push in the catch inasmuch as it automatically assumes the closed position as
shown in Fig. 2. by reason of its springy character.
As already described the handle 5, cannot be withdrawn from the socket 4,
except when the lamp door is open, but it is further desirable in some cases that it
should be capable of withdrawal when the said door is closed; this I effect after
the following manner, as shown in Figs. 8 to 12 inclusive.
The horizontal portion 12 of the spring catch 8, is now made in two parts, the
one part 12" being jointed to the other part 12b, hingewise at 13, (horizontally) such
outer part 12b, being operated upon by a spring, 14, which permits of its being
turned round at right angles or thereabouts to its normal position, as seen in Fig. 12.
This turning round being effected by a suitable button &c. 15, at the exterior
underside of the bottom of the lamp; but upon its being loosed, the said spring
immediately returns it to its normal straight line, as seen in Fig. 11. When in its
straight line, its outer end reaches the door and operates and is operated upon, in
the manner as before described when it was in one piece (as seen in Figs. 1 to 7);
but assuming the door of the lamp to be closed, by first turning round the
button &c. 15, the hinged part 12b, is turned to the one side, which permits the
drawing back or the yielding of the spring catch 8 clear of the collar upon
the handle, without opening the door, but, unless the part 12" is so held to the one
side, the spring 14, forces it back to the straight line.
This conversion of the straight (unyielding) part of the catch into one whose
front end may be thus turned aside for the purpose named may be varied
considerably in its arrangement and yet effect the same object.
Having now particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. The construction and combination of the parts hereinbefore described and
illustrated in Figs. 1, 2, 3, 4, 5, 6 & 7, of the accompanying drawings for
connecting the handles of carriage lamps to the sockets of such lamps.
2. The combination with the lamp body 1, socket 4, and collar 7, upon the
handle 5, and spring catch S, of a hinged part 12 with a manipulating piece 15,
constructed and operating after the manner described and illustrated in Figs. 8 to 12
inclusive.
Dated this 18th day of October 1892.
CHARLES T. POWELL,
Applicant's Agent.