Improvements in and connected with Lamps for Bicycles, Tricycles, and other Velocipedes or Carriages.
Year: 1890

page_text: Date of Application, 25th Nov., 1890
Complete Specification Left, 25th Aug., 1891-Accepted, 17th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in and connected with Lamps for Bicycles, Tricycles,
and other Velocipedes or Carriages.
We WILLIAM Bowx, of 308, Summer Lane Birmingham in the County of
Warwick, Manufacturer and ROBERT CHALMERS, of 45 Clifford Street, Aston
juxta Birmingham aforesaid, Lamp Maker, do bereby declare the nature of this
invention to be as follows :-
This invention relates firstly to the means or method of manufacturing the
burner and oil tank or reservoir used in connection with velocipede or carriage
lamps so as to prevent the overflow of oil and to provide better means for securing
the burner in the oil tank or reservoir.
Our improvements consist in forming a slight groove or recess all round or nearly
round that portion of the burner which fits into the oil tank or reservoir, we then
form one or more indentations below the said groove or recess and extending down
to the edge of the said burner, which indentations fit into a corresponding number
When
of projections formed on the collar or rim in which the said burner fits.
fitting the burner into the oil tank or reservoir the indentations are placed
opposite the projections formed on the collar or rim of the oil tank or reservoir in
which the said burner fits, the burner is then pushed slightly down, the projections
on the collar or rim of the oil tank or reservoir entering the groove or recess
formed on the burner which is then turned round to its proper position and firmly
held therein. The said groove or recess which is formed round the burner serves as
a means for checking the overflow of oil and for conducting the said oil back
again into the tank or reservoir, two or more holes being provided in the said
groove and at the bottom of the said burner for that purpose. Another part
of our invention consists in forming the collar or rim in which the burner fits
out of the same piece of metal as the part which forms the top of the oil tank
or reservoir thereby reducing the risk of leakage; and also in forming a ridge
or rim or projection all round the top edge of the said oil tank or reservoir
for the purpose of holding or catching the oil which finds its way out of the
tank or reservoir.
Another part of our improvements consist in dispensing with the usual coil
spring which is used in combination with the arms or levers at the back of the
lamp for carrying the same and using instead thereof a flat piece of spring steel
fastened in a suitable manner to the top or bottom back joint of the said arms or
levers by which means we obtain a much easier and quieter movement. Lastly
our improvements consist in the peculiar means or method of fixing or securing the
lamp onto the lamp bracket of the machine which we accomplish by fastening one
end of a piece of flat spring steel or other metal to the inside of the socket which
fits over the lamp bracket. To the other end of the said piece of flat spring steel
or other metal we secure a small piece of brass or its equivalent so that when the
screw which is inserted in the back or front of the socket which fits over the lamp
bracket of the machine is screwed up it forces the small piece of brass or its
equivalent against the said lamp bracket and securely holds the lamp thereon.
Da outh day of November 1890.
WILLIAM BOWN.
ROBERT CHALMERS.

page_text: 1 COMPLETE SPECIFICATION.
Improvements in and connected with Lamps for Bicycles, Tricycles,
and other Velocipedes or Carriages.
We, WILLIAM BOWN, of 308, Summer Lane, Birmingham in the County of
Warwick, Manufacturer, and ROBERT CHALMERS, of 45 Clifford Street, Aston
juxta 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 firstly to the means or method of manufacturing the
burner and oil tank or reservoir used in connection with velocipede or carriage
lamps so as to prevent the overflow of oil and to provide better means for securing
the burner in the oil tank or reservoir.
In order that our invention may be better understood we have annexed the
accompanying drawings illustrative thereof.
י
Fig. 1 is a side elevation of a velocipede lamp.
Fig. 2 is a front sectional elevation of the oil tank or reservoir shewing the
burner fixed therein.
Fig. 3 is plan of same without the burner.
Fig. 4 is a view shewing the burner detached from the oil tank or reservoir.
Fig. 5 is an end- view of the burner in section on the line ab of Fig. 4.
Fig. 6 is a part sectional clevation of the rubber box shewing our improved
means for securing the lamp onto the lamp bracket.
j
A is the body portion of the lamp to the back of which are secured the arms or
levers B the said arms or levers B forming the suspension device by means of
which the lamp is carried. Our improvements in this part of the lamp consist in
dispensing with the usual coil spring which is employed in combination with the
said arms or levers B and using instead thereof a flat spring C fastened in any
suitable manner to the top or bottom back joint of the said arms or levers B, but
by preference we fasten the said flat spring C to the top back joint c of the said
arms or levers B as shewn in Fig. 1. In Fig. 2 we have shewn our improvements
in connection with the oil tank or reservoir and burner, and which consist in
forming a slight groove or recess d all round or nearly round. that portion of the
burner D which fits into the oil tank or reservoir E, we then form one or more
indentations e below the said groove or recess d and extending down to the edge of
the said burner D, which said indentations e fit into a corresponding number of
projections (as shewn more clearly at Fig. 3) formed on the collar or rim g of the
said oil tank or reservoir E in which the said burner D is secured. When
fitting the burner D into the oil tank or reservoir E the indentations e are placed
opposite the projections and the said burner D pushed slightly down, the
projections entering the groove or recess d. The said burner D is then turned
round to its proper position and firmly held therein. The groove or recess d
which is formed round the burner D serves as a means for checking the overflow
of oil and also for conducting the said oil back again into the tank or reservoir E,
two or more holes being provided in the said groove or recess d and also at the
bottom of the said burner D for that purpose as clearly shewn at Figs. 4 and 5.
Our improvements further consist in forming the said collar or rim g in which
the burner D fits out of the same piece of metal as that part which forms the top i
of the oil tank or reservoir E, thereby reducing the risk of leakage and also in
forming a ridge or rim jor projection all round the top edge of the said oil tank or
reservoir E for the purpose of holding or catching the oil which finds its way out
of the said tank or reservoir E.
In Fig. 6 we have shewn our improved means of fastening or securing the lamp
onto the lamp bracket of the machine, which we accomplish by fastening a piece of
flat spring steel F or other metal to the inside of the socket or rubber box G

page_text: which fits over the lamp bracket secured to the machine. To the other end of the
said piece of flat spring steel F we secure a small piece of brass k or its equivalent,
so that when the screw H, which is inserted in the back or front of the socket or
rubber box G is screwed up, it forces the small piece of brass k or its equivalent
against the said lamp bracket and securely holds the lamp thereon.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we would have it understood
that we do not confine ourselves to the exact details as herein shewn and described,
but what we claim is :-
Firstly The flat spring C or its equivalent for the purpose substantially as
herein shewn and described.
Secondly-The groove or recess or equivalent, the indentations e or
equivalent, the projections for equivalent and the holes or equivalent for the
several purposes substantially as herein shewn and described with reference to
Figs. 2, 3, 4 and 5.
:
Thirdly Forming the rim g out of the same piece of metal as the top part of
the oil tank or reservoir substantially as herein shewn and described.
Fourthly The means substantially as herein shewn and described for securing
the lamp onto the lamp bracket of a machine.
Fifthly The several improvements in velocipede and other lamps substan-
tially as herein described and shewn in the accompanying drawings.
Dated this 24th day of August 1891.
WILLIAM BOWN.
ROBERT CHALMERS.