Improvements in or connected with Lamps.
Year: 1892

page_text: Date of Application. 14th Jan., 1892
Complete Specification Left, 9th Mar., 1892-Accepted, 9th Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in or connected with Lamps.
We, FALK, STADELMANN & COMPANY LIMITED, of 83, 85 and 87, Farringdon
Road, in the County of London, Manufacturers, do hereby declare the nature of
this invention (a communication to us by Salomon Falk, of the above address,
but at present of Cannstatt, Wurtemburg, in the Empire of Germany) to be as
follows:-
This invention relates to lamps and has for its object to provide improved means
for locking the lamp burner to the collar for the burner upon the reservoir in such
a manner that after the said burner is placed in position it cannot be removed
without operating the locking catch.
According to the said invention the said locking catch is in the form of a bell
crank lever one end of which is designed to bear against one of the ribs upon the
collar with which the hooks upon the bottom of the burner engage whilst the other
end is provided with a spring serving to press the locking end of the lever into
contact with the said rib. Upon one edge of the locking end of the said lever is
an inclined lip which causes the catch to be automatically pushed back when the
burner is being turned to secure it in position upon the collar.
Dated the 14th day of January 1892.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or connected with Lamps.
We, FALK, STADELMANN & COMPANY, LIMITED, of 83, 85 and 87, Farringdon
Road, in the County of London, Manufacturers, do hereby declare the nature of
this invention (a communication to us by Salomon Falk, of Cannstatt, Wurtemburg,
in the Empire of Germany) 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 lamps and has for its object to provide improved meaus
for locking the lamp burner to the collar for the burner upon the reservoir, in such
a manner that after the said burner is placed in position it cannot be removed
without operating the locking-catch.
According to the said invention the said locking-catch is in the form of a bell-
crank lever, one end of which is designed to bear against one of the ribs upon the
collar with which the hooks upon the bottom of the burner engage, whilst the other
end is provided with a spring serving to press the locking end of the lever into
contact with the said rib. Upon one edge of the locking end of the said lever is
an inclined lip which causes the catch to be automatically pushed back. when the
burner is being turned to secure it in position upon the collar.
To enable the invention to be fully understood we will describe the same by
reference to the accompanying drawing, in which :-
Figure 1 is an elevation of so much of lamp as is necessary to illustrate this
invention, the locking arrangement being shewn in elevation:
Figure 2 is a view similar to Figure 1 but shewing the locking arrangement in
side elevation :
Figure 3 is a plan.
a indicates the collar of the burner secured to the reservoir b, and e a ring forming
the lower part of the lamp-burner.

page_text: d, dare the ribs, and e, e are the hooks upon the collar a and ring e, respectively,
for retaining the burner upon the reservoir.
is the bell-crank locking-catch pivotted in the lugs, secured to the collar a
the said bell-crank being at one end adapted to bear against one of the ribs d, and
at the other end provided with a spring bearing against an arm (preferably
formed integral with the lugs g, g) and serving to normally hold the part of the
locking-catch in contact with the rib and in front of one of the hooks e, so that
the burner cannot be disengaged from the collar a until the bell-crank is moved to
draw the part away from the rib d
indicates the inclined portion of the locking end of the locking-catch, which
inclined portion serves to allow the said catch to be automatically pushed back by
one of the hooks e when fixing the burner upon the collar.
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 -
1. The combination with a lamp of a locking-catch pivotted to the collar for the
burner and adapted, when in its normal position, to prevent the burner from being
detached from the collar, substantially as described.
2. The improved means for locking the lamp burner to the collar, substantially
as herein before described and illustrated in the accompanying drawing.
Dated the 0th day of Mana 1905
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.