Improvements in or connected with Lamp Burners.
Year: 1893

page_text: Date of Application, 3rd July, 1893-Accepted, 12th Aug., 1893
COMPLETE SPECIFICATION.
Improvements in or connected with Lamp Burners.
I, SALOMON FALK of 83, Farringdon Road, in the County of London, Lamp
Manufacturer, 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 lamp burners provided with extinguishers of that class
having hinged flaps or shutters which slide upon the wick tubes and which are
operated by levers as in duplex lamps. The object of the said invention is to
provide improved means for closing the shutters over the wicks without employing
springs.
In carrying out the invention I form upon the hinged flap or shutter of each
extinguisher a lug or projection and upon the operating lever I arrange a cam-
piece which when the said lever is operated to lift the extinguisher will act against
the lug and close the shutter over the wick.
To enable my invention to be fully understood I will describe how it can be
carried into practice by reference to the accompanying drawing, in which :-
Figure 1 is a sectional elevation of a portion of a duplex lamp-burner having
two of my improved extinguishers applied thereto, the said extinguishers being
shewn in their lowered position.
Figure 2 is a sectional elevation of the same but at right angles to Figure 1.
Figures 3 and 4 are similar views to Figures 1 and 2 respectively but shewing the
extinguishers in their raised position.
a, a are the extinguishers, b, b the hinged flaps or shutters thereof and c, c the
wick tubes upon which the said extinguishers slide. d is the extinguisher lever
pivotted at e to the burner the said lever having one end bifurcated so as to
operate both extinguishers.
fare the projecting lugs which I form upon the hinged flaps or shutters b, b
and 9, 9 are the cam-pieces upon the arms or prongs h, h of the lever d.
It will be seen that when the lever d is operated to lift the extinguishers and
extinguish the lamp, the cam-pieces g, g will act against the lugs f, and cause
the flaps or shutters b, b when their upper edges project above the wick tubes to
close over the wicks against the other portion of the extinguishers.
The cam-pieces g, y are bent outwardly as shewn so that they may keep in contact
with the lugs f, notwithstanding the varying position of the latter due to their
movement upon their hinges.
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 :-
1. In a lamp burner having an extinguisher of the kind herein before described
the formation upon the flap or shutter of such extinguisher of a lug or projection
against which a cam-piece upon the extinguisher lever is adapted to operate,
substantially as and for the purpose set forth.
2. A lamp extinguisher adapted to slide upon the wick-tube and having a
hinged flap or shutter operated, substantially in the manner herein before
described

page_text: 3. The improved lamp burner hereinbefore described and illustrated in the
accompanying drawing.
Dated the 3rd day of July 1893.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.