Improvements in Carriage Lamps and in Attaching Lamps to Wheel Carriages and other Vehicles.
Year: 1892

page_text: Date of Application, 28th Apr., 1892
Complete Specification Left, 21st Jan., 1893-Accepted, 12th Mar.,
1893
Improvements in Carriage Lamps and in Attaching Lamps to
Wheel Carriages and other Vehicles.
I, WILLIAM WHISTON, of No. 5 Great Charles Street, Birmingham, in the
County of Warwick, Lamp Manufacturer do hereby declare the nature of this
invention to be as follows:-
My improvements in carriage lamps consist of the following methods of fixing
and liberating the nozzle on the top of the candle tube.
To the top of the candle tube I fix a catch consisting of an arm the lower part
of which is vertical and the upper part horizontal and having a curvature concentric
with the said tube. In the shoulder near the top of the nozzle 1 make a slot of a
size and shape suitable for the passage through it of the arm on the candle tube.
When the nozzle is placed on the candle tube the slot in it is brought over the said
catch and the nozzle is depressed. The catch on the candle tube protrudes through
the slot in the nozzle and by turning the nozzle through a small angle the horizontal
part of the catch on the candle tube engages with an uncut away part of the
shoulder of the nozzle and prevents the rising of the nozzle until it has been turned
so as to bring the slot immediately over the catch when the nozzle can be removed
from the candle tube. By making the horizontal part of the catch extend right
and left of the vertical part, the nozzle may be fixed on the candle tube by turning
it in either direction.
.
In attaching lamps to carriages and other vehicles such for example as
velocipedes according to my invention I employ an arm or lamp holder commonly
called the "lamp iron" the free end of which has nearly the figure of a circular disc
with a cut away part of a size and shape suitable for the reception of that part of
the candle tube immediately under the bottom of the lamp case.
The underside
of the lamp case has a recess for the reception of the end of the lamp holder. The
part of the candle tube immediately under the bottom of the lamp case has an
external screw thread on which a screw collar works. The said screw collar has
at top a circular flange of the size of the end of the lamp holder.
In attaching the lamp to the lamp holder the lamp is passed by a sliding motion
onto the lamp holder the candle tube occupying the cut away part of the disc of
the said holder. The said disc seats itself in the recess at the underside of the
lamp and by screwing home the collar on the candle tube the disc of the lamp
holder is grasped between the underside of the lamp and the circular flange of the.
said collar. The lamp is thus secured in its place and can only be removed by
unscrewing the said screw collar. I prefer to introduce a washer of vulcanized
india rubber, leather or like material between the holder and the bottom of the
lamp. Jarring and the noise consequent upon it is thereby prevented and any
tendency to accidental unscrewing is also prevented. The range of the descending
motion of the screw collar is limited either by a stop flange on the candle tube or
by contracting the top of the collar.
Dated this 28th dex of Anvil 18009
W. T. WHITEMAN,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Carriage Lamps and in Attaching Lamps to
Wheel Carriages and other Vehicles.
I WILLIAM WHISTON, of No. 5 Great Charles Street, Birmingham in the
County of Warwick, Lamp Manufacturer do hereby declare the nature of my
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement. :-
My improvements in carriage lamps consist of the following methods of fixing
and liberating the nozzle on the top of the candle tube.
To the top of the caudle tube 1 fix a catch consisting of an arm, the lower part
of which is vertical and the upper part horizontal and having a curvature concentric
with the said tube. In the shoulder near the top of the nozzle I make a slot of a
size and shape suitable for the passage through it of the arm on the candle tube.
When the nozzle is placed on the candle tube the slot in it is brought over the said
catch and the nozzle is depressed. The catch on the candle tube protrudes through
the slot in the nozzle and by turning the nozzle through a small angle the horizontal
part of the catch on the candle tube engages with an uncut away part of the shoulder
of the nozzle and prevents the rising of the nozzle until it has been turned so as to
bring the slot immediately over the catch when the nozzle can be removed from the
candle tube. By making the horizontal part of the catch extend right and left of
the vertical part, the nozzle may be fixed on the candle tube by turning it in either
direction.
In attaching lamps to carriages and other vehicles such for example, as velocipedes,
according to my invention I employ an arm or lamp holder commonly called the
"lamp iron," the free end of which has nearly the figure of a circular disc with a
cut away part of a size and shape suitable for the reception of that part of the
candle tube immediately under the bottom of the lamp case.
The underside of the
lamp case has a recess for the reception of the end of the lamp holder. The part
of the candle tube immediately under the bottom of the lamp case has an external
screw thread on which a screw collar works. The said screw collar has at top a
circular flange of the size of the end of the lamp holder.
In attaching the lamp to the lamp holder the lamp is passed by a sliding motion
on to the lamp holder, the candle tube occupying the cut away part of the disc of
the said holder. The said disc seats itself in the recess at the underside of the
lamp and by screwing home the collar on the candle tube the disc of the lamp
holder is grasped between the underside of the lamp and the circular flange of the
said collar. The lamp is thus secured in its place and can only be removed by
unscrewing the said screw collar. 1 prefer to introduce a washer of vulcanized
india rubber, leather or like material between the holder and the bottom of the lamp.
Jarring and the noise consequent upon it is thereby prevented and any tendency
to accidental unscrewing is also prevented. The range of the descending motion
of the screw collar is limited either by a stop flange on the candle tube or by
contracting the top of the collar.
I will now proceed to describe with reference to the accompanying drawing the
manner in which my invention is to be performed.
Figure 1 represents in elevation a carriage lamp attached to the lamp holder or
lamp iron according to my invention, and also containing my arrangement for fixing
the nozzle to the candle tube.
Figure 2 represents in elevation and vertical section the upper part of the candle
tube with the nozzle fixed thereto;
and
Figure 3 represents a plan of the candle tube and nozzle before the latter is fixed,
Figure 4 represents the same after the nozzle has been fixed;
Figure 5 represents a plan of the nozzle separately ;

page_text: Figure 6 represents, partly in elevation and partly in vertical section, the lower
part of the body of the lamp attached to the lamp holder or lamp iron and
Figure 7 represents a plan of the lamp iron, with the body of the lamp in
horizontal section ;
Figure 8 represent the same view as Figure 6 without the lamp iron;
Figure 9 represents in horizontal section and Figure 10 in plan of underside, the
circular or disc end of the lamp holder or lamp iron covered by a spring and hinged
cap, after the lamp has been detached from it.
Figures 2, 3, 4, 5, 6, 7, 8, 9 and 10 are drawn to a larger scale than the complete
lamp represented in Figure 1.
The same letters of reference indicate the same parts in the several figures of
the drawing.
C
I will first describe my arrangement for fixing and liberating the nozzle of the
candle tube. a is the candle tube and b is the nozzle. On the top of the candle
tube a is a catch c, consisting of a vertical arm, the upper part of which is horizontal
and having a curvature concentric with the said candle tube (see Figures 3 and 4).
The end of the horizontal curved top of the catch c is pointed for the purpose
hereinafter described. In the shoulder and near the top of the nozzle 6 is a slot of
a size or shape suitable for the passage through it of the catch c and near one end
of the slot d is a shorter slot or notch e. In fixing the nozzle to the candle
tube a the former is so placed on the latter that the slot d in the said nozzle is
brought over the catch c and the nozzle depressed so that the curved top of the
said catch protrudes through the slot in the nozzle as represented in Figures 2 and 3.
By then turning the nozzle through a small angle the curved top of the catch c
engages with or passes over an uncut away part of the shoulder of the nozzle and
its pointed end takes into the notch or short slot e in the said shoulder as repre-
sented in Figures 2 and 4. The nozzle is thereby prevented from rising and fixed
in its place. By returning the nozzle to the position Figure 3, it is unfastened and
may be removed from the candle tube.
The horizontal curved part of the catch c may be made in the form of a cross-
head; that is, it may extend on either side the vertical part. In this case, the
nozzle is fixed on the candle tube by turning it in either direction
I will now describe my improvements in attaching the carriage lamp to the lamp
holder or lamp iron; fis the arm of the lamp holder or iron fixed on the carriage
and g is the circular free end of the same provided with the radial cut away part h
for the reception of the part of the candle tube a immediately under the bottom of
the lamp case i. The said circular end g of the lamp iron is of disc form, that is,
both its upper and lower faces are flat; k is a circular recess in the bottom of the
lamp case for the reception of the circular or disc like end g of the lamp holder
or lamp iron. Fixed in a groove or otherwise at the closed end of the said recess k
is a washer of vulcanized india rubber, leather or other like material for the
upper face of the circular or disc like end 9 of the lamp holder or iron to seat itself
against when the lamp is fixed to the said holder or iron to prevent jarring and
noise between the lamp case and holder or iron. On the candle tube a near the
bottom of the lamp case is an external screw m, on which a milled screw nut or
collar n works the said screw collar n having at its top a circular flange n' of the
size of the circular or disc like end g of the lamp holder or iron. The descent of
the screw collar n upon the candle tube a is limited by the stop flange p.
In fastening the lamp to the fixed lamp holder or lamp iron f, g on the carriage,
the lamp is by a sliding motion passed onto the circular or disc end g, the candle
tube a occupying the cut away part of the said circular or disc like end. By
then lowering the lamp the recess & in its underside passes onto or seats itself on
the disc like end g of the lamp iron, the india rubber washer bearing against the
upper face of the said disc like end g. By screwing home the collar n, the disc
5 like end of the lamp iron is gripped between the underside of the lamp case and
the circular flange on the screw collar a and the lamp is secured in its place. In
order to prevent the rotation of the lamp, upon the lamp iron when fastened, the

page_text: cut away edge of the circular recess (see Figure 7) engages with the shouldery*
on the said lamp iron, when the lamp is lowered onto the said lamp iron.
By unscrewing the collar a into the position represented in Figure 8 and lifting
the lamp off the disc like end y of the lamp iron, and withdrawing by a lateral
motion the candle tube a from the cut away part h of the said disc like end, the
lamp is removed from the lamp iron.
In order to avoid the unsightly appearance of the circular or disc like end 9 of
the lamp iron when the lamp is removed from it, I cover the said end g by a cap
of the kind represented in Figures 9 and 10. The said cap is made in halves
marked respectively 9 and r, the lower part r being hinged at one end to the other
half gats, and the two halves of the cap are closed or pressed together by the
by the central coiled spring t. The lower half can be turned on its hinges so as
to separate the halves of the cap at their front ends by means of the finger plate u.
In fastening the cap to the flat disc like end g of the lamp iron, the front ends of
the halves of the cap are slightly separated by acting upon the finger plate u and
the open cap is then passed by a sliding motion onto the disc g.
When the cap
has been passed home on the disc, it closes, and the edge of the upper half 9 snaps
upon the edge of the disc and fixes it in its place as seen in Figures 9 and 10.
Having now particularly described and ascertained the nature of my invention
and the manner in which the same is to be performed I declare that I claim as my
invention o Improvements in carriage lamps and in attaching lamps to wheel
carriages and other vehicles ";—
First Fixing and liberating the nozzles of the candle tubes of carriage lamps
by means of a projecting curved catch fixed on the end of the candle tube engaging
with and being liberated from the slotted horizontal flange of the nozzle substan-
tially as hereinbefore described and illustrated in the accompanying drawing.
Secondly-Attaching carriage lamps to the fixed lamp holders or lamp irons
by the combination of parts hereinbefore described and illustrated in the accom-
panying drawings; that is to say, the combination of the flat circular or disc like
outer end of the lamp holder or lamp iron with a correspondingly shaped recess in
the bottom of the lamp case for taking upon the said circular or disc like end, in
conjunction with the flanged screw collar working upon a screw on the candle tube
for gripping the said circular or disc like end of the lamp iron between its flange
and the washer in the recess of the lamp case substantially as described and
illustrated.
Thirdly-The combination with the flat circular or disc like end of the lamp
holder or lamp iron of the spring and hinged covering cap hereinbefore described
and illustrated in Figures 9 and 10 of the accompanying drawing.
Dated the Twentieth day of January 1893.
WHIOMANY