Improvements in Cycle Lamps.
Year: 1892

page_text: Date of Application, 15th Nov., 1892
Complete Specification Left, 5th Sept., 1893-Accepted, 7th Oct., 1893
PROVISIONAL SPECIFICATION.
Improvements in Cycle Lamps.
We WILLIAM SHARP, of James Watt Street, in the City of Birmingham, General
Smith, and WILLIAM SHARP of 7 Alfred Street Sparkbrook, near Birmingham
aforesaid, Lamp Maker do hereby declare the nature of this invention to be as
follows:-
This invention relates to cycle lamps, and has for its object accessibility to the
interior of the body part of the same, and means for locking the oil tank, which forms
the base of the said lamp, to the shell body part.
Thus our invention relates to section lamps, or lamps consisting of three or more
component parts, which admit of being separated or dislocated, for gaining access
to the interior of the lamp, cleaning the reflector and interior parts of the same, the
lighting and trimming of the wick, or for the refilling of the oil tank with oil, as
occasion requires.
By our invention, we make the body part separate from the tank part, and by
means of the bell, which is made attachable and detachable, the said tank part is
locked to the shell body part.
In carrying out our invention, we proceed as follows :-
We take a shell body part, open at bottom, closed at sides and back, and with the
front pierced with a circular or other hole for the taking of the shank of the bell,
which is glazed as usual.
The top of the shell body part has a crown, breaker and cowl as usual, whilst the
open bottom of the said body part takes upon and around a rabate running around
the boundary edge of the oil tank, so that the lower edge of the body part,
when in its position upon its combined tank and base, breaks joint with the top of
the said tank, which is attachable and detachable, and is locked in position as
hereinafter described.
Directed upon the two opposite inside parts of the shell body part, are depending
spring limbs, terminated at their lower parts by studs, which take into holes or
eyes of upright brackets, carried or directed from the two opposite sides of the
top of the tank, when the tank or oil chamber is in position. Normally the
springs are away from their fastening positions, so that on lugs on the bell
being rotated, the said spring limbs are pressed inwards, or towards the inside
of the lamp, and by the said movement, the studs are made to take into the
holes in the brackets, hence the connection and locking of the said oil tank to
the body part.
The lugs on the shank of the bell are under-cut, or made hook shaped, whilst the
edge of the piercing in the point of the lamp, wherein the said shank takes, is gapped
with opposite side holes, wherethrough the lugs inwardly pass, on the same becoming
coincident, and with the edge of the piercing, the undercut parts of the lugs thread
themselves.
Assuming the parts of the lamps, to wit, the bell and tank, to be separated from
the body part, and with the spring limbs in an outward position, make the
connection of the tank to the body part by placing the latter over the former, when
the eyes of the brackets at the ends of the tank come opposite the studs at the free
ends of the spring limbs. Now insert the shank end of the bell up to a collar disposed
at a short distance from the said inner end, and with the lugs passed through the
holes or piercings in the side as aforesaid. Then by rotating the bell through a
quadrant or other portion of a circle, the hooked or gapped parts of lugs trace
themselves round the edge of the opening, by a space being left between the fore
parts of the lugs and the collar as aforesaid.

page_text: The rotation of the bell causes the lugs carried by it to impinge against the spring
limbs, deflect inwards the same, and take the studs at the ends of them, into the
holes or eyes in the brackets of the lamp, hence the connecting and locking of the
tank to the body by the bell.
So long as the bell remains in its assigned position, the tank will be secured to
the body part.
Instead of the tank being locked by two spring limbs, the same may be secured
and locked by one. In this case (where one spring only is employed), one side of
the oil tank has an outstanding ear or lip, which takes through a piercing in the
lower part of the side of the body of the lamp, so that when connection of the
tank is made to the body part, the ear or lip on the one part, is first inserted into
the piercing in the other part, then the tank is turned into position, and upon the
said ear as the centre of motion, when the securing and locking of the other
side of the tank is performed by the stud end of the spring limb taking into the eye
of the bracket, through the intervention of the lugs through the partial rotation of
the bell.
Dated this 14th day of November 1899
COMPLETE SPECIFICATION.
Improvements in Cycle Lamps.
We, WILLIAM SHARP, of James Watt Street, in the City of Birmingham, General
Smith, and WILLIAM SHARP, of 7 Alfred Street, Sparkbrook, near Birmingham
aforesaid, Lamp Maker, do hereby declare the 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 :-
This invention relates to cycle lamps, and has for its object, accessibility to the
interior of the body part of the same, and also to means for locking the oil tank,
(which forms the base of the said lamp) to the shell body part.
Our invention relates to section lamps, or lamps consisting of three or more
component parts, which admit of being separated or dislocated, for gaining access
to the interior of the lamp, for the cleaning of the interior parts of the same,
such as the reflector, inner walls and the like, and also for lighting and trimming
of the wick, or for the refilling of the oil tank or container, as occasion requires.
By our invention, the body part is made separate from the tank part, and by meaus
of the bell, which is made attachable and detachable, the said tank part is locked to
the shell body part.
In carrying out our invention, we proceed as follows:-
We take a shell body part, open at bottom, closed at sides and back, and with the
front pierced with a circular or other hole for the taking of the shank of the bell,
which is glazed as usual.
The top of the shell body part has a crown, breaker and cowl as usual, whilst
the open bottom of the said body part takes upon and around a rabate running
around the boundary edge of the oil tank, so that the lower edge of the body part,
when in position upon its combined tank and base, breaks joint with the top of the
said tank, which is attachable and detachable, and is locked in position as herein-
after described.
Directed upon the two opposite inside parts of the shell body part, are depending
spring limbs, terminated at their lower parts by studs, which take into holes or
eyes of upright brackets, carried or directed from the two opposite sides of the
top of the tank, when the tank or oil chamber is in position. Normally, the
springs are away from their fastening positions, so that on lugs on the bell

page_text: being rotated, the said spring limbs are pressed inwards, or towards the I-
of the lamp, and by the said movement, the studs are made to take into the
holes in the brackets, hence the connection and locking of the said oil tank to
the body part.
The lugs on the shank of the bell are undercut, or made hook shaped, whilst the
edge of the piercing in the front of the lamp, wherein the said shank takes, is gapped
with opposite side holes, wherethrough the lugs inwardly pass, on the same becoming
coincident, and with the edge of the piercing, the undercut parts of the lugs thread
themselves.
Assuming the parts of the lamp, to wit, the bell and tank, to be separated
from the body part, and with the spring limbs in an outward position, make the
connection of the tank to the body part by placing the latter over the former,
when the eyes of the brackets at the ends of the tank come opposite the studs
at the free ends of the spring limbs. Now insert the shank end of the bell up to
a collar disposed at a short distance from the said inner end, and with the lugs
passed through the holes or piercings in the side as aforesaid. Then by rotating
the bell through a quadrant or other portion of a circle, the hooked or gapped parts
of the lugs trace themselves round the edge of the opening, by a space being left
between the fore parts of the lugs and the collar as aforesaid.
The rotation of the bell causes the lugs carried by it to impinge against the spring
limbs, deflect inwards the same, and take the studs at the ends of them, into the eyes
or holes in the brackets of the lamp, hence the connecting and locking of the tank
to the body by the bell.
So long as the bell remains in its assigned position, the tank will be secured to
the body part.
Instead of the tank being locked by two spring limbs, the same may be secured
and locked by one. In this case (where one spring only is employed) one side of
the oil tank has an outstanding ear or lip, which takes through a piercing in the
lower part of the side of the body of the lamp, so that when connection of the tank
is made to the body part, the ear or lip on the one part is first inserted into the
piercing in the other part, then the tank is turned into position, and upon the said
ear as the centre of motion, when the securing and locking of the other side of
the tank is performed by the stud end of the spring limb taking into the eye
of the bracket, through the intervention of the lugs through the partial rotation
of the bell.
Figure 1 of the accompanying drawing represents a section lamp, or a lamp made
up of three separable parts, with the oil tank, which constitutes the base to the same,
locked to the body part by the bell or glazed part of the front.
Figure 2 represente a back elevation of the said lamp, with the back walls of the
same removed, in order to show the means whereby the said tank or base is locked
to the body part of the lamp, and also how the said base is released from the body
part by the re-rotation of the bell.
Figure 3 represents the upper part of the lamp detached from the lower part below
it Figure 4. It also shows the spring arms in their non-acting position, and with the
snugs upon the bell, which press home the said spring arms, coming coincident with
the slots in the front of the lamp.
Figure 5 represents side elevations of the whole of the parts when separated.
Figure 6 is a plan of a portion of the bell Figure 5, showing the hook shaped
catches or snugs upon the sides.
a is the shell body part of the lamp, with an open bottom a³, and closed sides a¹,
and with the front as of the said sides fitted with a circular hole or opening a*,
for receiving or taking the shank or inner end 6, of the bell b, having a stop
flange 6, to limit its inward fitting, so that on the said beading or shoulder b
coming up to the boundary or beading edging a³, of the hole a', the said bell is
fully home, and admits of being rotated for operating (as hereinafter described) upon
the spring arms or catches.
Now this said inner end 6', of the bell, is fitted with hooked snugs 63, which

page_text: take at the back of the walls of the opening a, and operate upon the spring
arms c, supported from points c³, and having at their free ends c catches c³,
adapted to engage within holes d', of brackets d', disposed on the two opposite
sides of the combined oil-tank and base d, which forms the closure to the bottom
of the lamp.
Now the studs c³, besides taking through the holes d', of the brackets or parts
carried by the closure bottom, also take through holes a, in the opposite sides of
the body of the lamp.
To admit of the introduction and removal of the bell from the front of the
lamp, gaps a', are provided at opposite points cut out of the boundary edge, so that
on the bell being removed by making the overhanging hooked snugs b³, come
coincident with the gaps a', the said bell can be removed for cleaning or otherwise.
e is the burner of the lamp, and fare the bracket arms of the spring back.
Now assuming that the dislocation of the primary component parts of the lamp is
required, turn the bell in the direction indicated by the full arrow, until the hook
snugs, which both act upon the spring arms c, and also connect the bell to the
front of the lamp, are out of the range of the said spring arms,
when the same open
out, and remove the stud ends c³, from out of the holes a, d', of the body part a, and
bracket d, of the base part d. The combined tank and base now becomes separated
from the other part as in Figure 4.
By now turning the snugs, coincident with the gaps a', the whole of the parts
become separated and dislocated as in Figure 5.
To connect the combined base and oil-tank to the shell body part, place the former
within the open bottom of the latter, then introduce the bell into position and
rotate the same, when the snugs, travel down the inclines c, of the arms c, and
press the same towards the inside walls of the sides, and pass the studs c³, through
the coincident holes d', a', when the said base and oil tank becomes locked to the
shell body part by the open mouth a², taking over the rabate ³.
Instead of employing two arm catches as represented, we may only employ one.
In this modified form, one side of the tank has a hook or stud which engages in a
hole in the one side of the shell body part.
Instead of employing a spring arm or arms c, we may employ jointed levers, which
are opened out when released, by a spring or springs.
Instead of the bell being detachable, the same may only be attachedly connected,
but capable of rotating, for making its snugs operate upon, and be removed from
the arms c, and instead of the bell rotating, a sleeve or collar surrounding the
inner part of the bell and carrying the lugs, may rotate, and instead of the arms
being pushed back or operated by snugs, they may be operated by side pushers
directed through the sides of the lamp, so that by pressing the pushers inwards,
the catches or fastening means release themselves from the combined oil-tank
and base. In such a case, the connection of the said base with the lamp body
part is made self-acting by forming the arms c, to act as spring catches, which are
pushed back and locked by the act of pushing the said base into its assigned
position.
As an alternative method of locking, jointed levers may be substituted for the
said spring arms, which levers may be put into their locked or unlocked positions
by the action of the snug parts on the bell or its equivalent, when rotated.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
First. In sectional or attachable and detachable part cycle lamps, connecting the
tank or base part of the lamp to the body part through the medium of spring arms
or catches, or by jointed levers or their equivalents, suitably mounted and operated
or released for locking and unlocking by the rotation of snugs or projections on the
inner part of the bell, or on a collar on the bell, substantially in the manner and as
and for the purpose as described and set forth.

page_text: Secondly. In sectional or detachable part cycle lamps, the combination with an
open bottomed shell body part a, with an oil tank or base d, with the latter fitted with
brackets or their equivalents and the former with spring arms having catches at their
free ends, operated and released substantially in the manner and as and for the
purpose as described and set forth.
Thirdly. In sectional or detachable part cycle lamps, the construction, arrange-
ment, combination and fitting of the parts, substantially as and for the purpose as
herein described and set forth.
Fourthly. In sectional or detachable part cycle lamps, locking the base part to,
or releasing it from, the body part by the rotation of a bell, substantially as
described and set forth.
Datcu vay of suprember 200
WILLIAM SHARP,
WILLIAM SHARP,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicants.