IMPROVEMENTS IN LAMPS FOR BICYCLES TRICYCLES AND OTHER VELOCIPEDES to be as follows:
Year: 1884

page_text: I ALEXANDER WHEELER PATCHING of N° 32 Upper Highgate Street Birmingham
in the County of Warwick Manager of Works do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN LAMPS FOR BICYCLES TRICYCLES AND
OTHER VELOCIPEDES to be as follows:-
"
My improvements in lamps for bicycles tricycles and other velocipedes consist in
constructing and arranging the parts of the said lamps in the following manner.
The burner of the lamp is of the kind commonly known as an arġand burner.
I surround the said burner with a deflector the body of which is of a bulbous
figure and the top conical. The height of the deflector exceeds its diameter. The
deflector is perforated near its base and its middle for the admission of air which
is delivered immediately above the top of the wick case the opening in the top of
the deflector being of a diameter only slightly exceeding that of the wick case.
By this arrangement the lamp when burning a volatile oil burns without a chimney
and the flame is smokeless.
In order to preserve the oil reservoir cool I connect it to the underside of the
case of the lamp instead of introducing it into the inside of the case as usual.
This I effect by making slides on the top of the reservoir and a slot in the bottom
of the lamp case with the edges of which slot the said slides engage after the
manner of the ordinary dovetail slide. The closing of the door of the lamp fixes
the reservoir in its place.
In order to permit of the ready introduction of the lamp between the spokes of
the wheel of a bicycle I divide the case of the lamp into two parts the division
being in a vertical plane parallel to the back or door of the lamp. The lamp case
is thus divided into two parts the front part consisting of about two thirds of the
case and the back part consisting of the remaining third. The back part of the
case and the door are fixed together so that on opening the door the depth of
the lamp from front to back is virtually diminished to two thirds its ordinary
depth and in this state it can readily be introduced between the spokes of the

page_text: bicycle wheel for suspending it to the shaft of the bicycle. Still further to facilitate
the passage of the lamp between the spokes of the bicycle wheel I make the front
glass of the lamp moveable in the following manner. The said glass is set in
a parabolic mount the inner face of which constitutes a reflector. Near the front
of the mount a cylindrical rim is fixed the rear inner surface of which has a screw
thread which takes onto a corresponding screw thread on the outside of a cylindrical
rim around the opening in the front of the lamp case. By this arrangement the
reflector and front glass can readily be removed and replaced by a screwing action.
Or the parabolic mount carrying the front glass may be connected to the front of
the lamp by sliding and fixed by a spring snap fastening.
Dated this tanth day of May 1881
W. T. WHITEMAN,
Agent for the Applicant.

page_text: I ALEXANDER WHEELER PATCHING of N° 32 Upper Highgate Street Birmingham
in the County of Warwick, Manager of Works, do hereby declare the nature of my
Invention for "IMPROVEMENTS IN LAMPS FOR BICYCLES, TRICYCLES AND OTHER
VELOCIPEDES 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 lamps for bicycles, tricycles and other velocipedes, consist
in constructing and arranging the parts of the said lamps in the following manner.
The burner of the lamp is of the kind commonly known as an argand burner.
I-surround the said burner with a deflector the body of which is of a bulbous
figure and the top conical. The height of the deflector exceeds its diameter. The
deflector is perforated near its base and its middle for the admission of air which is
delivered immediately above the top of the wick case the opening in the top of the
deflector being of a diameter not exceeding that of the wick case. By this
arrangement the lamp when burning a volatile oil burns without a chimney and
the flame is smokeless.
In order to preserve the oil reservoir cool I connect it to the underside of the
case of the lamp instead of introducing it into the inside of the case as usual.
This I effect by making slides on the top of the reservoir and a slot in the bottom
of the lamp case with the edges of which slot the said slides engage somewhat
after the manner of the ordinary dovetail slide. The closing of the door of the
lamp fixes the reservoir in its place.
In order to permit of the ready introduction of the lamp between the spokes of
the wheel of a bicycle I divide the case of the lamp into two parts, the division
being in a vertical plane parallel to the back or door of the lamp. The lamp case
is thus divided into two parts the front part consisting of about two thirds of the
case and the back part consisting of the remaining third. The back part of the
case and the door are fixed together so that on opening the door the depth of
the lamp from front to back is virtually diminished to two thirds its ordinary
depth and in this state it can readily be introduced between the spokes of the
bicycle wheel for suspending it to the shaft of the bicycle. Still further to facilitate
the passage of the lamp between the spokes of the bicycle wheel, I make the front
glass of the lamp moveable in the following manner. The said glass is set in
a parabolic mount the inner face of which constitutes a reflector. Near the front
of the mount a cylindrical rim is fixed the rear inner surface of which has a screw
thread which takes onto a corresponding screw thread on the outside of a cylin-
drical rim around the opening in the front of the lamp case. By this arrangement
the reflector and front glass can readily be removed and replaced by a screwing.
action. Or the parabolic mount carrying the front glass may be connected to the
front of the lamp by sliding and fixed by a spring snap fastening.
Figure 1 of the accompanying Drawings represents in side elevation and
Figure 2 in back elevation with the back slide partly raised, a bicycle lamp
containing my improvements; Figures 3 and 4 represent the divided parts of the
lamp case separately and Figure 5 represents the.mount of the front glass detached
from the case; Figure 6 represents the lamp in vertical section; Figure 7 represents
in vertical section and Figure 8 in plan the combined oil reservoir and burner.
detached from the case and Figure 9 represents in back elevation and Figure 10 in
side elevation (taken at right angles to the elevation Figure 5) the mount of the
front glass detached.

page_text: The same letters of reference indicate the same parts in the several Figures of
the drawings.
a is the principal or front part of the lamp case and is the smaller or back
part of the said case, the said back part b carrying the slide c by which access is
obtained to the interior of the case for lighting and trimming the wick. The said
slide c works in the guides d, d on the back part b of the case. The back part b
is connected to the front part a by knuckles e, e on the former being engaged by
a sliding motion with the joint pius f, f on the latter as seen in Figure 1. The
back part b constitutes a door and can be turned upon the hinges ef; ef to open
the lamp case for removing the oil reservoir and burner and when closed is fixed
by a spring snap fastening a² of the ordinary kind.
When it is wished to attach the lamp to the bicycle, the oil reservoir p is first
removed from the connected parts a, b of the case by opening the part 6 upon the
part a; the part b is then removed by a vertical sliding motion from the part a of
the case as represented in Figures 3 and 4. The depth of the lamp case from back
to front is thus virtually diminished to two thirds its ordinary depth and when in
this state it can readily be introduced between the spokes of the bicycle wheel for
suspending the lamp to the shaft of the bicycle; g is the removeable metallic
mount made of a parabolic figure in which mount the front glass h is set.
inner face of the mount is silvered and constitutes a reflector. The removeable
mount g is connected to the front of the part of the case by means of a guide or
bolt on its lower side taking into a loop or socket k on the lamp case and a spring
snap fastening in the case (see Figures 3 and 6) snapping in front of the projec-
tion m on the top of the parabolic mount g.
The
In connecting the mount g to the lainp case, the guide or bolt i is first introduced
into the loop k and the mount is then pressed into the lamp case.
The spring snap
fastening is thereby pressed back by the projection m and when the mount has
seated itself in its place the free end of the spring snaps upon the said shoulder m
as illustrated in Figure 6 and the mount is firmly attached to the case. By lifting
the spring snap fastening 1 by the finger loop 12 at its free end, the said fastening
is disengaged from the projection m and the parabolic mount g may be removed
from the case as illustrated in Figures 3 and 5.
Instead of fixing the mount in the lamp case by a spring snap fastening as
described and illustrated, the said mount may be fixed in the case by screwing;
that is, a screwed rim is made at the rear of the cylindrical rim g² and a
corresponding -screw on a rim at the front of the opening-in-the-lamp case for
receiving the mount:
By the removal of the mount g the depth of the lamp case is further reduced by
the depth of the projecting outer part of the mount and the glass h and the passage
of the lamp between the spokes of the bicycle wheel facilitated.
The oil reservoir p carries the argand burner q the said reservoir being connected
to the underside of the part a of the lamp case and virtually forms a closed
bottom to the case. The connection of the reservoir b to the open bottom of the
case a is effected by slides p², p³ on the upper face of the reservoir taking upon the
opposite edges 7, 7 of the open bottom of the case (see Figure 2 and the separate
views Figures 7 and 8). After the reservoir p has been passed by a sliding notion
to its place at the bottom of the lamp case, its withdrawal is prevented by closing
the hinged back part b of the case. By thus exposing the bottom and sides of the
oil reservoir to the external air, the said reservoir is kept cool and the heating of
the light oil held in it is prevented. The top of the oil reservoir is kept cool in
the manner herein after explained.
Surrounding the argand burner q is a metallic deflector s the body being of
a bulbous figure and the top conical as represented. The air deflector 8 is perforated
near its base with small perforations and at its middle with slits or longitudinal
perforations: The air passing through the perforations described in the deflectors 8
is delivered immediately above the top of the wick case of the burner to the wick.

page_text: 8
as will be understood by an examination of Figure 7 where it will be seen that
the top of the deflector s has a diameter not exceeding that of the wick case. By
delivering the air in this way the lamp when burning a volatile oil burns without
a chimney and the flame is smokeless.
Air to support combustion is introduced into the hollow top 2³ of the vil
reservoir by the end perforations at p in the said reservoir and the air is
delivered into the lamp case by the perforations at p in the false top of the
reservoir.
By the circulation of air through the chamber p³ the top of the reservoir is
kept cool.
My improvements may be applied to lamps for tricycles and other velocipedes as
well as to bicycle lamps in connection with which I have described them.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I claim
is of "Improvements in lamps for bicycles tricycles and other velocipedes" :-
First Surrounding the argand burner of the lamp with the metallic deflector
marked a the said deflector being constructed and acting substantially as herein
before described and illustrated in the accompanying Drawings.
Secondly Preserving the oil reservoir of the lamp cool by connecting it to the
open bottom of the lamp case, that is, fixing the said reservoir external to the lamp
case substantially as herein before described and illustrated in the accompanying
Drawings.
Lastly Setting the front glass of the lamp in a removeable parabolic metallic
mount, the inner face of which constitutes a reflector for the purpose and
substantially as herein before described and illustrated in the accompanying
Drawings.
Dated this Nineteenth day of December 1884.
ALEX. WHEELER PATCHING.