IMPROVEMENTS IN CARRIAGE LAMPS
Year: 1885

page_text: We WILLIAM BURLEY of Bishop Street Birminghain in the County of Warwick,
Carriage Lamp Manufacturer and JOHN GRIMLEY of Hurst Street, Birmingham
aforesaid Saddlers' and Coach Ironmonger do hereby declare the nature of the
said invention for "IMPROVEMENTS IN CARRIAGE LAMPS" to be as follows:-
This invention consists of the construction and combination of the parts herein-
after described for connecting the removeable candle tube to and disconnecting
from the body of the lamp.
By this invention the candle tube is very easily connected and disconnected and
when connected is very secure and the fastening is not affected by the jarring or
tremulous motion of the carriage to which the lamp is applied.
We use a combined candle tube and nozzle of such a length that when
introduced into the body of the lamp through the barrel on the underside of the.
body and fastened in its place the upper or nozzle end of the said candle tube >
projects the required distance into the interior of the lamp. On that part of the
candle tube which when fastened in its place occupies the said barrel is a sliding
collar which is raised into its highest position on the candle tube by a coiled
spring. Below the sliding spring collar on the candle tube is a stud or projection.
In the interior of the barrel on the lamp body and near the top thereof is a
projection or shoulder against which the top of the spring sliding collar bears when
the candle tube is introduced into the lamp, and at the bottom of the said barrel
is a longitudinal slot having cross slots at its ends for the stud on the candle tube.
to work in and engage with. The said stud and slots somewhat resemble an
ordinary bayonet joint fastening. One of the end slots is longer than the other,
and the longer alot is open at its bottom for the introduction into it of the stud on
the candle tube.
In fastening the combined candle tube and nozzle in its place, the stud on the
candle tube is brought opposite and passed into the open ended slot in the barrel
and pressed upwards so as to force the sliding collar on the candle tube against the
shoulder in the interior of the barrel and compress the coiled spring. The stud on
the candle tube is now in the longitudinal slot and by a forward twisting motion
the said stud is brought opposite the short end slot into which it is forced by the
compressed sliding collar. The candle tube is thus fastened very securely, in its
place, the pressure of the sliding collar holding the stud in the fastening end slot*

page_text: and binding the candle tube so firmly in the barrel that the unfastening of the
said candle tube by the jarring or vibration of the carriage is effectually prevented.
In order to remove the combined candle tube and nozzle, it is only necessary to
press upwards the candle tube so as to withdraw the stud from the fastening end
slot and give a back twisting motion to the said tube. The stud is thereby
brought opposite the open ended slot into which it is forced by the spring sliding
collar. The stud can now be completely withdrawn from the slot and the candle
tube removed from the lamp body.
:
Improvements in Carriage Lamps:
We WILLIAM BURLEY of Bishop Street, Birmingham in the County of Warwick,
Carriage Lamp Manufacturer and JOHN GRIMLEY of Hurst Street, Birmingham
aforesaid Saddlers' and Coach Ironmonger do hereby declare the nature of the said
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 consists of the construction and combination of the parts herein
after described for connecting the removable candle tube to and disconnecting it
from the body of the lamp. By this invention the candle tube is very easily
connected and disconnected and when connected' is very secure and the fastening
is not affected by the jarring or tremulous motion of the carriage to which the
lamp is applied.
We use a combined candle tube and nozzle of such a length that when introduced
into the body of the lamp through the barrel on the underside of the body and
fastened in its place the upper or nozzle end of the said candle tube projects the
required distance into the interior of the lamp.
On that part of the candle tube which when fastened in its place occupies the
said barrel is a sliding collar which is raised into its highest position on the candle
tube by a coiled spring. Below the sliding spring collar on the candle tube-is a
stud or projection. In the interior of the barrel on the lamp body and near the
top thereof is a projection or shoulder against which the top of the spring sliding.
collar bears when the candle tube is introduced into the lamp and at the bottom of
the said barrel is a longitudinal slot having cross slots at its ends for the stud on
the candle tube to work in and engage with. The said stud and slots somewhat
resemble an ordinary bayonet joint fastening. One of the end slots is longer than

page_text: the other, and the longer slot is open at its bottom for the introduction into it of
the studion the candle tube.
T
In fastening the combined candle tube and nozzle in its place the stud on the
candle.tube is brought opposite and passed into the open ended, slot in the barrel
and pressed upwards so as to force the sliding collar on the candle tube against
the shoulder in the interior of the barrel and compress the coiled spring. The stud
on the candle tube is now in the longitudinal slot and by a forward twisting
motion, the said stud is brought opposite the short end slot into which it is forced
by the compressed sliding collar.
The candle tube is thus fastened very securely in its place the pressure of the
sliding collar holding the stud in the fastening end slot and binding the candle
tube so firmly in the barrel that the unfastening of the said candle tube by the
jarring or vibration of the carriage is effectually prevented.
In order to remove the combined candle tube and nozzle it is only necessary to
press upwards the candle tube so as to withdraw the stud from the fastening end
slot and give a back twisting motion to the said tube. The stud is thereby
brought opposite the open ended slot into which it is forced by the spring sliding
collar. The stud can now be completely withdrawn from the slot and the candle'
tube removed from the lamp body. .
Figure 1 of the accompanying Drawing represents in elevation a carriage lamp
containing these improvements; Figure 2 represents in elevation partly in section;
the lower part of the body and barrel of the lamp; Figure 3 represents in elevation
the upper part and nozzle of the candle tube; Figure 4 represents in vertical
section the candle tube in the act of being fastened to the barrel and Figure 5
represents a horizontal section of the same taken through the fastening parts;
Figure 6 represents in vertical section and Figure 7 in horizontal section the
candle tube fastened to the barrel of the lamp: Figures 2. 3. 4. 5. 6 and 7 are
drawn of the full size The same letters of reference indicate the same parts in
the several Figures of the Drawing:-a, b is the combined candle tube and nozzle
the upper or nozzle end b of the candle tube, when fastened in its place, projecting
into the interior of the lamp as represented in Figure 1; c is the sliding tubular
collar on the candle tube the said collar being raised into its highest position by
the coiled spring d around the said candle tube. The bottom of the tubular
collar c is open, the annular space between the said collar c and the candle tube a
being closed by the shoulder e on the candle tube. The top of the tubular collar c
is cupped or turned inwards at c. The bottom of the spring d takes a bearing
against the shoulder e on the candle tube and the top of the said spring bears
against the turned in top c³ of the collar c; f is a projection or shoulder in the
interior of the barrel g against which projection or shoulder f the top c² of the
spring collar c bears for the purpose herein after described. Below the spring
collar c on the candle tube is a stud h and at the bottom of the interior of the
barrel g is a longitudinal slot i having at its ends, cross or vertical slots is, i³
(see Figure 2) for the said stud h to work in and engage with. The end slot i² is
open at its bottom for the introduction into it of the stud h on the candle tube a.
In order to fasten the combined candle tube and nozzle a, b in its place in the
barrel g the stud h on the candle tube is passed up the open ended slot in the
barrel and the candle tube is pressed upwards so as to force the top of the
collar c against the shoulder f in the interior of the harrel g. The further upward
motion of the candle tube causes the latter to slide within the now stationary
collar c and compress the spring d between the turned in end c of the collar and
the supporting shoulder e on the candle tube as represented in Figure 4. When
the candle tube has been raised in the barrel g into the position represented in
Figure 4 the stud on the candle tube is situated in the longitudinal slot i and
by a forward twisting motion of the candle tube through about a quadrant the
said stud his brought over the short end slot into which it is forced by the
action of the compressed spring d, that is, as soon as the stud is brought over
the end slot the spring d bearing upon the shoulder e of the candle tube forces

page_text: down the latter and' causes its stud h to engage with the end slot 3 and thereby
effect the fastening of the candle tube to the barrel as represented in Figures 6
and 7.
By the downward pressure of the spring of the collar c upon the candle tube,
the stud is held firmly in the end slot and the candle tube is bound so tightly
in the barrel that the unfastening of the candle tube by the jarring or tremulous
motion of the carriage is effectually prevented.
+
For the purpose of removing the candle tube from the lamp body it is first
necessary to press upwards the said candle tube into the position represented in
Figure 4 and compress the coiled spring d, thereby raising the stud h from the
fastening end slot 3. By now giving the candle tube a, a back twisting motion
its stud h travels along the slot i and is brought over the open ended slot into
which it is forced by the compressed spring of the sliding collar. The candle tube.
is thus unfastened and can be withdrawn from the barrel.
Having now particularly described and ascertained the nature of this invention
and the manner in which the same is to be performed we declare that what we
claim is ;-
7
Connecting the removable candle tubes of carriage lamps to the bodies of the
said lamps by the combination of the parts marked c, c, d, e and f in conjunction
with the fastening parts h, i, i, 3, substantially as herein before described and
illustrated in the accompanying Drawing.
j