Improvements in Regulating Devices for Incandescent Gas Lamps.
Year: 1894

page_text: Date of Application, 21st May, 1894 -Accepted, 23rd June, 1894
COMPLETE SPECIFICATION,
Improvements in Regulating Devices for Incandescent Gas Lamps.
I PAUL DE BEAUX of 6 Markt, Leipzig, in the Empire of Germany, Watch
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 :—
The regulating device for incandescent gas lamps described and shown in the
Complete Specification and drawing supplied to my application for a Patent
No. 10454 of 27th May 1893 and accepted on 21st April 1894 is improved
upon as is shown in the accompanying drawing and as will be explained
hereinafter.
Fig. 1 of the drawing is a vertical transverse sectional view of the gas cock and
burner,
Fig. 1 the same slightly altered, and
Fig. 1 is a horizontal cross sectional view of the gas cock.
Figs. 2, 3 and 4 are elevations of the burner and gas cock with the lever D in
three different positions.
Figs. 2, 3 and 4ª are cross sections of the gas cock and
Figs. 2, 3 and 4 are horizontal cross sectional views of the burner and gas
cock in the plane of the air passages.
The Figs. 2, 2 and 2 correspond to each other, also Figs. 3, 34 and 3B, and
Figs. 4, 44 and 4 respectively.
Instead of making the box P of the gas cock square as formerly, I now shape
it like a ball in the centre, with round flanges to facilitate the turning and facing
of same.
Where it is desired, the small passage way Q in the gas cock A. (Fig. 1B) made
to prevent the extinction of the flame during the position of the cock shown in
Fig. 4, may be replaced by a fine annular recess C (Figs. 1 and 1^) turned round
the cock. The notches B in the cock A, which were formerly semicircular, are
now made square as shown in (Figs. 1, 1A and 1B).
The air passages I in the rotary air inlet controlling sleeve H had formerly the
same size as those N in the casing M which proved to be not quite correct.
Therefore I make the air passages I in the sleeve H somewhat larger than
those N in the casing M in order to secure the correct proportion between the
amount of gas emitted by the nozzle, and of air admitted through the passages I
and N.
The pin G was formerly soldered or in a similar manner fixed to the sleeve H.
In order to facilitate the putting the whole together or taking it to pieces, I
provide the pin G at one end with a thread and at the other end with a thumb
head. Then the flat end can be fastened in a hand-vice and the threaded end be
easily screwed into the sleeve.
When it is so preferred, the lever D may be replaced by two arms D¹ and D'
(see dotted lines in Fig. 2) at right angles to the top arm E.
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.
An improved regulating device for incandescent gas lamps, comprising a cock A
with square notches B on opposite sides of its face, a ball-shaped box P for same,
a. rotary air inlet controlling sleeve H with air passages I, the size of which is
somewhat larger than that of the air passages N in the casing M surrounding the

page_text: nozzle, and a pin G with a thread at one end for screwing into the sleeve H and a
flattened part at the other end, the said pin G being guided through the slot F in
the top arm E of the lever D.
Dated this Olot day of May 1904.
H. J. HADDAN,.
18, Buckingham Street, Strand, London, W.C.,
Agent for the Applicant.