Improvements in Means for Securing Candle Tubes to Carriage Lamp Sockets.
Year: 1897

page_text: Date of Application, 13th May, 1897
Complete Specification Left, 23rd Oct., 13)'-4ccepted, 4th Dec.,
1897
PROVISIONAL SPECIFICATION.
Improvements in Means for Securing Candle Tubes to Carriage Lamp
Sockets.
I, MARY ANN AMELIA GOODWIN trading as Wyncott and Sons, of Guest Street,
Hockley, in the City of Birmingham, Manufacturer, do hereby declare the nature
of this invention to be as follows:-
This invention relates to an improved means of securing or connecting and dis-
connecting the candle tube of a carriage or road vehicle lamp to or from the lamp
socket, and has for its object, a simple and effective arrangement so constructed
that the candle tube cannot be detached from the socket without first opening the
door of the lamp.
The said invention consists of a lamp base supporting the body and covered over
by a removable bottom reflector and having the socket or sleeve whereinto the
candle tube fits, passing vertically and transversely therethrough, with one end of the
same standing above the surface of the said bottom and the other part depending
from the underside of the said bottom, which is pierced with air-inlet holes
entering a shallow chamber or sinking covered over by a plate encircling the upper
part of the candle tube, and which carries, or may carry, the candle tube securing
means, consisting of a double armed or bell cranked lever turning upon a centre
at the junction of its two arms, whose movement is controlled by suitable stops,
whilst a lip or inner extension of one of the arms passes through a slit in the upper
part of the socket for the engagement of it with the candle tube. This said lip
may have a chamfer upon its underside to meet a like chamfered or inclined ring
top of the candle tube, which consists of a length of tubing with an annular groove
adjacent to its upper end terminated by an inclined or taper beading and having
an added sleeve of a diameter suitable for fitting tightly into the socket, the
lower end of which takes an abutment against an annular collar at the bottom
edge of the said added sleeve.
The bottom reflector has a raised nozzle or cone with a hole through it, the edge
When the
of which is inwardly beaded, turned inwards or otherwise stiffened.
reflector is in position the upper end of the candle tube takes into the cone.
In connecting the candle tube to the lamp, pass the same, top end forward,
through the socket; then, by applying force the chamfered top is forced past the
chamfered lip of the fastening which lies in the path of the candle tube and which
is thus pushed back against the pressure of a spring and on the said shoulder
passing the lip, the said lip snaps into the groove and so automatically holds the
said candle tube within the socket.
To again release the candle tube, simply turn the lever or equivalent, which is
preferably pushed home by a spring about its pivot or equivalent fulcrum in an
opposite direction.
I may employ a thumb or lever turn or other equivalent device for actuating the
fastener, which is located within the interior of the lamp and whose axis passes

page_text: through a suitable hole in the bottom reflector. Or I may employ a sliding bolt
operated by a lever or turn for securing the candle tube.
Dated this 12th day of May 1897.
I, MARY ANN AMELIA GOODWIN trading as Wyncott and Sons, of Guest Street,
Hockley, in the City of Birmingham, Manufacturer, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-|
larly described and ascertained in and by the following statement:-
This invention relates to an improved means of securing or connecting and dis-
connecting the candle tube of a carriage or road vehicle lamp to or from the lamp
socket, and has for its object, a simple and effective arrangement so constructed
that the candle tube cannot be detached from the socket without first opening the
door of the lamp.
Figure 1 of the accompanying drawings represents in complete vertical section,
carriage lamp, provided with means for connecting and disconnecting the candle
tube to or from the socket, and showing the fastener in engagement with the said
candle tube.
Figure 2 is a topside plan of Figure 1, but with the bottom reflector removed,
and
Figure 3 is a like view as Figure 2, but with the fastener part o catch shown
turned back out of engagement with the candle tube, thus leaving the said tube
free to be removed.
The same letters of reference indicate corresponding parts in the several figures
of the drawings.
« is the base of a carriage lamp, supporting the body b, and covered over by a
removable bottom reflector 6', and having the socket or sleeve c, whereinto the
candle tube d, fits, passing vertically and transversely therethrough, with one
end d, of the same standing above the surface of the said bottom reflector and the
other part, depending from the underside of the said lamp base, whilst a', is
a shallow chamber or sinking covered over by a plate a², encircling the upper part
of the candle-tube socket and which carries, or may carry, the candle tube
securing means e, consisting of a double armned or bell cranked lever e¹, turning
by means of a turn piece es, upon a centre e, at the junction of its two arms e c³,
whose movement is preferably quadrant wise in a horizontal plane and is controlled
by suitable stops a, at, whilst a lip or inner extension e, of the arm e, passes
through a slit c', in the upper part 2, of the socket for the engagement of it with
the candle tube d. This said lip may have a chamfer upon its underside to meet
a like chamfered or inclined ring top 3, of the candle tube which consists of a
length of tubing with an annular groove d adjacent to its upper end terminated
by an inclined or taper beading d³, under the shoulder of which the end of the
said arm e, engages to retain the said tube in position, whilst the said tube has
an added sleeve d, of a diameter suitable for fitting tightly into the socket, the
lower end of which is encircled by an outer sleeve d, which fits into the carriage
lamp iron when the lamp is in position. The locking arm is kept in engagement

page_text: with the candle tube by means of the spring f, bearing against the extending
part e, of the same.
The bottom reflector has a raised nozzle or cone b', with a hole 6 through it,
the edge b, of which is inwardly beaded, turned inwards or otherwise stiffened.
When the reflector is in position the upper end of the candle tube takes into
the cone.
In connecting the candle tube to the lamp, pass the same, top end forward,
through the socket c, then, by applying force,the chamfered top d³, is pushed
past the chamfered lip of the arm et, of the fastening, which lies in the path of
the candle tube and which is thus pushed back against the pressure of the spring,
and on the said shoulder of the beading d³, passing the lip, the said lip snaps into
the grooved, and so automatically holds the said candle tube within the socket.
To again release the candle tube, simply turn the lever or equivalent, fastening
by means of the turn e8, about its pivot in an opposite direction.
Instead of a thumb turn, I may employ a lever turn or other equivalent device
for actuating the fastener, which is located within the interior of the lamp and
whose axis passes through a suitable hole in the bottom reflector. Or I may
employ a sliding bolt operated by a lever or turn for securing the candle tube.
my
Having now particularly described and ascertained the nature of said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
First. Securing candle tubes in position within the sockets of carriage and like
lamps by means of a spring snap catch or fastener, taking through a hole in the
socket and engaging at the back of a collar or shoulder on the tube, whereby the
said tube is automatically secured in position substantially as described and set
forth.
Secondly. A fastening for securing candle tubes to the sockets of carriage
lamps, consisting of a catch or fastening, moving in a horizontal plane, automati-
cally shot by a spring and withdrawn or disengaged by a turn, lever or equivalent
located interiorly of the lamp, which said catch or fastener automatically snaps
or engages behind a shoulder or collar on the candle tube when the same is pushed
into position but cannot be disengaged therefrom without first opening the lamp,
substantially as herein described and set forth.
T: 001 day of October 1807
MARY ANN AMELIA GOODWIN.
By Henry Skerrett
24 Temple Row Birmingham Agent for Applicant.