Improvements in or Applicable to Lamp Burners.
Year: 1886

page_text: Date of Application, 20th Sept., 1886.
Complete Left, 18th June, 1887.
Complete Accepted, 19th July, 1887.
I CORNELIUS CRASTIN, of 185 Hornsey Road, in the county of Middlesex, Engineer
do hereby declare the nature of my invention to be as follows:-
This invention relates to providing of lamp burners with a simple device whereby
the wick is automatically and immediately extinguished by the act of lowering
the same by the usual means.
For this purpose I provide the top of the burner with a weighted or spring hinged
flap whereby when the wick is below the level of the top of the burner the latter
is automatically covered in the said flap giving way and allowing the wick to pass
when the same is raised by means of the usual key.
D
ለ
A
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.
Improvements in or Applicable to Lamp Burners.
I, CORNELIUS CRASTIN, of 185, Hornsey Road, in the county of Middlesex, Engineer,
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 providing lamp burners with a simple device whereby the
wick is automatically and immediately extinguished by the act of lowering the same
by the usual means.

page_text: .
For this purpose I provide the top of the burner with a weighted or spring hinged
flap whereby when the wick is below the level of the top of the burner the latter
is automatically covered in, the said flap giving way and allowing the wick to pass
when the same is raised by means of the usual key.
In order to enable my invention to be fully understood I will describe how it can
be carried into practical effect by reference to the accompanying drawing in which
figures 1 and
represent elevations and figures 2 and 5 represent transverse vertical
sections of lamp burners provided with weighted hinged flaps according to my
invention, a portion of wick being shewn in the wick tube at figure 2; figure 3 is
a plan of figure 1. Similar letters in all the figures represent similar parts.
a, represents the lamp burner or wick tube and b, is my hinged flap which I have
shewn in the drawing provided with a weight c, for causing it to automatically
cover in the top of the wick d, when the latter is turned down below the top of
the wick tube a. It will be obvious however without illustration that the automatic
action can be effected by means of a spring instead of a weight; e, represents the
usual spindle and f, f, the toothed wheels for raising the wick.
In figures 1, 2 and 3, the flap 6 is shewn hinged to the inside of the wick tube a ;
the hinge of the flap is shewn as advantageously formed by a piece of stout wire g,
(preferably of the section shewn) bent into a rectangular shape and round one of the
sides of which the metal forming the flap is curved and fixed; one side of the wick
tube is curved outwards as shewn at h, and in this curved portion h, works the wire g,
and inner end of the flap, the remaining portion of the wire forming the weight for
automatically closing the flap.
In figures 4 and 5 the flap b, is shewn hinged in a cut away portion of the
wick tube a; in other respects the flap is the same as that shewn in figures 1,
2 and 3.
By providing a lamp burner with my binged flap as herein before described it will
be seen that, the wick and hinged flap being in the position shewn in figure 2, if the
wick d, be raised (by operating the usual knob i,) into position for being lighted
the weighted hinged flap b, will give way in order to allow the wick to pass and the
flap and weight will assume the position shewn in dotted lines. When the wick
is lowered to extinguish the light the weighted flap b, will automatically cover in
the top of the wick as shewn by the full lines thereby extinguishing the flame.
In the drawing I have illustrated my invention as applied to a single wick burner ;
it will be obvious that it is equally applicable to duplex burners.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. Providing the wick tubes or burners of flat-wick lamps with a weighted or
spring hinged flap substantially as and for the purpose herein before described.
2 The improved combined lamp burners and extinguishers herein before described
and illustrated in the several figures of the accompanying drawing.
Hlated tho TX-k dow of
LUDA XX7
ated the LXR C
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicant.