Improvements in Lamps for Velocipedes and other Vehicles.
Year: 1897

page_text: Date of Application, 2nd July, 1897
Complete Specification Left. 21st Jan.. 1898-Accepted, 12th Mar., 1898
Date of Application, 2nd July, 1897
Complete Specification Left. 21st Jan. 1898-Accepted, 12th Mar., 1898
PROVISIONAL SPECIFICATION.
[Communicated from abroad by R. E. DIETZ COMPANY, of No. 60, Laight Street,
in the City of New York, in the County and State of New York, United
States of America.]
Improvements in Lamps for Velocipedes and other Vehicles.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention to be as follows:
This invention relates to lamps for velocipedes and other vehicles the objects
of the said invention are to improve the construction of the devices whereby air
is supplied for the support of the flame to the lower portion of the case of a
bicycle or carriage lamp, so as to maintain a white and strong flame under the
various conditions of motion and exposure to wind under which such lamps are
used and to provide convenient means for connecting the oil pot to the lamp body.
In carrying the invention into practice the oil pot is provided with a burner
mounted thereon; and a reflector arranged in the lamp case and a front collar
containing the front glass.
A cylindrical collar is secured to the lower portion of the lamp case and is pro-
vided in its side with perforations. An annular row of perforations is formed in
the lower portion of the lamp case around the upper end of the cylindrical collar.
An imperforate collar is arranged below the perforated cylindrical collar and
formed in one piece therewith. This imperforate collar is somewhat larger in
diameter than the perforated collar and connected therewith by a horizontal
shoulder. The imperforate collar is provided at its lower end with a bead having
its recessed side arranged inwardly, in which the oil pot is secured by any suitable
detachable fastening, but preferably by the fastening hereinafter described, so
that the burner extends upwardly through the perforated collar into the lamp
case.
Air injectors are arranged on both sides of the perforated collar and are com-
posed each of a vertical transverse plate which extends outwardly from the per-
forated collar between the horizontal shoulder and the overhanging lower portion
of the lamp case, and a longitudinal vertical outer head or plate which is secured
to the outer end of the transverse plate at right angles to the same. This head
may be curved to conform to the curvature of the perforated collar.
A horizontal deflecting plate is secured to the inner side of the lamp case above
an annular row of perforations and which extends from the sides and back of the
case toward the burner. The inner edge of the plate extends around the burner
at the front. The lamp case above referred to is cylindrical with the axis of the
cylinder arranged longitudinally and the side edges of the deflecting plate and
secured to the lower portions of the curved side walls of the case.
projects into the lamp case above the deflecting plate.
The burner
The perforations in the cylindrical collar and the annular row of perforations

page_text: supply air to the lower portion of the lamp structure for the support of the flame
and this air is directed inwardly toward the burner, by the deflecting plate. Part
of this air is drawn into the lamp structure by the action of the flame and part
is injected by air currents which strike these perforations directly. This air
supply is increased by the injectors which operate upon air currents which would
otherwise pass by the cylindrical perforated collar and which deflect such air
currents into the lamp structure, partly through the adjacent perforations of the
cylindrical collar and partly through the adjacent perforations. These injectors
project laterally from the perforated collar and therefore gather air during the
forward movement of the vehicle to which the lamp is attached and inject such
gathered air into the lamp.
The oil pot is provided at its top with a contracted cylindrical portion of a
diameter to enter the lower beaded portion of the imperforate collar and this
cylindrical portion of the oil pot is provided on diametrically opposite sides with
two short lugs or projections of a size to enter the cavity of the bead. The latter
is provided in its lower edge and on diametrically opposite sides with a shallow
notch and a deep notch. The burner is provided with the usual screw threaded
lower portion which engages in the threaded socket of the oil pot and with the
usual raiser shaft which projects laterally from the burner. The deep notch in
the imperforate collar of the lamp body is so deep or high as to allow the wick
raiser shaft to enter the same when the oil pot is inserted into the collar of the
lamp body.
For connecting the oil pot with the lamp body the burner is so adjusted in its
socket that the wick raiser shaft stands over one of the lugs. The oil pot is then
inserted into the collar in such manner that the wick raiser and the lug enters
the shallow notch of the collar, the two lugs standing on a level with the internal
cavity of the bead and the wick raiser shaft above the bead. The oil pot is now
given a partial turn to the right whereby its two lugs are caused to enter the
cavity of the bead and to move into the same circumferentially a corresponding
distance, thereby breaking joint with the notches in the beaded collar and pre-
venting the disengagement of the oil pot and lamp body by a direct pull. This
turning movement of the oil pot is participated in by the burner only for a short
distance until the wick raiser shaft strikes the side of the deep notch when the
farther turning movement of the burner with the oil pot ceases. The further
continuation of the turning movement of the oil pot, while the burner is held
stationary by the engagement of the wick raiser shaft against the side of the deep
notch causes the burner to be screwed tightly into its seat with the wick raiser
shaft bearing down upon the top of the oil pot so that the wick cannot be jarred
down. For detaching the oil pot from the lamp body, the oil pot is turned back
until its lugs register with both notches when the parts can be separated.
This attachment of the oil pot to the lamp body is very simple and secure as
it does not rely upon the wick raiser shaft as a means of attachment and provides
means for tightening the burner in its seat by means of the wick raiser shaft.
Dated this 2nd day of July 1897.
Improvements in Lamps for Velocipedes and other Vehicles.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45, Southampton Buildings, in the County of Middlesex, do hereby declare the

page_text: 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:-
The objects of this invention are to improve the construction of the devices
whereby air is supplied for the support of the flame to the lower portion of the case
of a bicycle or carriage lamp, so as to maintain a white and strong flame under
the various conditions of motion and exposure to wind under which such lamps
are used and to provide convenient means for connecting the oil pot to the lamp
body.
In the accompanying drawing:-
Figure 1 is a side elevation of a bicycle lamp provided with my improvements.
Figure 2 is a vertical cross section of the lamp body in line 2-2, Figure 1,
the oil pot and burner being shown in front elevation.
Figures 3 and 4 are horizontal sections, respectively, in lines 3-3, and 4-4,
Figure 1.
Figure 5 is a vertical section of the oil pot and lower portion of the burner
through the lugs on the oil pot in line 5--5, Figure 6.
Figure 6 is a horizontal section in line 6-6, Figure 5.
Figure 7 is a fragmentary side elevation of the lower collar of the lamp body
viewed from the side on which the shallow notch is formed, and
Figure 8 is a similar view of the lower collar of the lamp body viewed from the
side on which the deep notch is formed.
Like letters of reference refer to like parts in the several figures.
C
A represents the oil pot and a the burner mounted thereon, B the lamp case;
the reflector arranged in the same; D the front collar which contains the front
glass and E the top or dome.
f represents a cylindrical collar which is secured to the lower portion of the
lamp case and provided in its side with perforations g. h represents an annular
row of perforations formed in the lower portion of the lamp case around the upper
end of the collar f. I represents an imperforate collar which is arranged below
the perforated collar f and formed in one piece therewith. This imperforate
collar is somewhat larger in diameter than the perforated collar and connected
therewith by a horizontal shoulder i. The collar I is provided at its lower end
with a bead j having its recessed side arranged inwardly in which the oil pot is
secured by any suitable detachable fastening but preferably by the fastening here-
inafter described; so that the burner extends upwardly through the perforated
collar into the lamp case.
K represents air injectors arranged on both sides of the perforated collar f and
composed each of a vertical transverse plate k, which extends outwardly from the
perforated collar between the shoulder and the overhanging lower portion of the
lamp case, and a longitudinal vertical outer head or plate which is secured to
the outer end of the transverse plate at right angles to the same. This head may
be curved to conform to the curvature of the perforated collar, as shown in
Figure 3.
L represents a horizontal deflecting plate which is secured to the inner side of
the lamp case above the annular row of perforations h and which extends from the
sides and back of the case toward the burner. The inner edge of the plate extends
around the burner except at the front, as shown in Figure 4. The lamp case,
as shown, is cylindrical with the axis of the cylinder arranged longitudinally and
the side edges of the deflecting plate and secured to the lower portion of the
curved side walls of the case. The burner projects into the lamp case above the
deflecting plate L.
The perforations in the collar f and the row of perforations h supply air to the
lower portion of the lamp structure for the support of the flame and this air is
directed inwardly toward the burner, by the plate L. Part of this air is drawn
into the lamp structure by the action of the flame and part is injected by air
currents which strike these perforations directly. This air supply is increased
by the injectors K which operate upon air currents which would otherwise pass
$

page_text: of
by the perforated collar f and which deflect such air currents into the lamp
structure, partly through the adjacent perforations of the collar f and partly
through the adjacent perforations h. These injectors project laterally from the
perforated collar ƒ and therefore gather air during the forward movement of the
vehicle to which the lamp is attached and inject such gathered air into the lamp.
The oil pot A is provided at its top with a contracted cylindrical portion
a diameter to enter the lower beaded portion of the collar I and this cylindrical
portion of the oil pot is provided on diametrically opposite sides with two short
Tugs or projections b¹ of a size to enter the cavity of the bead j. The latter is
provided in its lower edge and on diametrically opposite sides with a shallow.
notch cand a deep notch c¹. The burner is provided with the usual
threaded lower portion d which engages in the threaded socket d¹ of the oil pot
and e is the usual wick raiser shaft which projects laterally from the burner.
The deep notch c¹, in the collar I of the lamp body is so deep or high as to allow
the wick raiser shaft to enter the same when the oil pot is inserted into the collar
of the lamp body.
screw
For connecting the oil pot with the lamp body the burner is so adjusted in its
socket that the wick raiser shaft stands over one of the lugs b. The oil pot is then
inserted into the collar in such manner that the wick raiser shaft and the lug
below the same enter the deep notch, and the opposite lug enters the shallow notch
of the collar, the two lugs standing on a level with the internal cavity of the bead
and the wick raiser shaft above the bead. The oil pot is now given a partial turn
to the right whereby its two lugs are caused to enter the cavity of the bead and to
move into the same circumferentially a corresponding distance, thereby breaking
joint with the notches in the beaded collar and preventing the disengagement of
the oil pot and lamp body by a direct pull. This turning movement of the oil
pot is participated in by the burner only for a short distance until the wick raiser
shaft strikes the side of the deep notch when the further turning movement of
the burner with the oil pot ceases. The further continuation of the turning
movement of the oil pot, while the burner is held stationary by the engagement
of the wick raiser shaft against the side of the deep notch, causes the burner to
be screwed tightly into its seat with the wick raiser shaft bearing down upon the
top of the oil pot so that the wick cannot be jarred down. For detaching the oil
pot from the lamp body, the oil pot is turned back until its lugs register with
both notches when the parts can be separated.
This attachment of the oil pot to the lamp body is very simple and secure as it
does not rely upon the wick raiser shaft as a means of attachment and provides
means for tightening the burner in its seat by means of the wick raiser shaft.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondents, I declare that what I claim is):
1. The combination with a lamp case having at its lower end a perforated collar,
of an oil pot secured in said collar below the perforations thereof, a burner mounted
on said oil pot and projecting into said lamp case and having its lower portion
arranged opposite said perforations and air injectors which are arranged on both
sides of said collar outside of said perforations and deflect the air inwardly through
said perforations against the lower portion of the burner, substantially as set forth.
2. The combination with a lamp case having at its lower end a perforated
collar, of an oil pot secured in said collar below the perforations thereof, a burner
mounted on said oil pot and projecting into said lamp case and having its lower
portion arranged opposite said perforations, and air injectors which are arranged
on both sides of said collar and which consist each of a transverse vertical plate
extending from said perforations outwardly and a longitudinal plate arranged at
the outer end of said transverse plate, substantially as set forth.
3. The combination with a lamp case having at its lower end a perforated collar,
and having perforations in its lower portion above said collar, of an oil pot secured

page_text: in said collar below the perforations thereof, a burner mounted on said oil pot and
projecting into said lamp case and having its lower portion arranged opposite the
perforations in said collar, air injectors which are arranged on both sides of said
collar and deflect the air inwardly through the perforations of said collar and case,
and a deflecting plate which is arranged within the lamp case above the perforations
thereof and deflects the air inwardly against the burner, substantially as set forth.
4. The combination with a lamp body provided at its lower end with a bead
having its recessed side arranged inwardly and having notches in its lower edge,
one of said notches being of suitable height to receive the wick raiser shaft, of an
oil pot adapted to enter said beaded collar and provided with outwardly projecting
lugs adapted to be passed upwardly through said notches and to enter the recess
of said head by a turning movement, and a screw burner seated in said oil pot and
provided with a wick raiser shaft adapted to enter one of said notches whereby the
burner is prevented from turning with the oil pot and can be screwed down
tightly by turning the oil pot with its lugs in the recessed bead of the lamp body,
substantially as set forth.
Dated this 21st day of January 1898.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.