A New or Improved Acetylene Gas Light Apparatus, applicable for use in Photographic Studios for Photographing at Night.
Year: 1897

page_text: PROVIDIONAL SPECIFICATION.
A New or Improved Acetylene Gas Light Apparatus, applicable for
use in Photographic Studios for Photographing at Night.
We, GEORGE WILLIAM GASKELL, and RICHARD FREDERICK REEVE, of 186, Park
Road, Liverpool, in the County of Lancaster, Photographic Sundriesmen, do hereby
declare the nature of this invention to be as follows:-
This invention has for its object an apparatus whereby acetylene gas can be
employed in photographic studios and other like places for photographing by
night.
It comprises the following parts, viz.:-A telescopic or other frame supported
on a suitable stable base, a reflector or diffuser of concave or other shape, a
series of burners on a frame arranged obliquely at a suitable angle by which the
necessary light is thrown on the object which it is desired to photograph. The
frame is so made that its height can be adjusted, and at the top there is a cross
arm pivoted or jointed to the frame, which carries the reflector or diffuser aforesaid,
and which also carries the frame of burners and supplies gas thereto. This arm
with its burners and diffuser is supported by means of a quadrant or arm so that
it can be fixed horizontally or at any angle required, whereby the light may be
diffused and directed in the required direction. The gas burners are arranged
in rows on cross pipes of a tubular frame of pipes, which frame is preferably square,
and this frame is by preference placed obliquely so that the respective rows of
gas jets are not directly underneath one another. By arranging them in this way,
the air has free access to the jets and it is found that the light is steadier and
less liable to flicker and there is less liability to smoke, than would be the case
if the burners were placed immediately underneath each other in a vertical plane.
The reflector or diffuser is arranged to diffuse the light rather than reflect it in one
given point. It is therefore painted white or white-leaded on its concave surface.
The cross arm aforesaid is provided with a cock for the attachment of a tube
leading to the acetylene generator.
Dated the 17t JT
1007
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicants.
A New or Improved Acetylene Gas Light Apparatus, applicable for
use in Photographic Studios for Photographing at Night.
We, GEORGE WILLIAM GASKELL, and RICHARD FREDERICK REEVE, of 186, Park
Road, Liverpool, in the County of Lancaster, Photographic Sundriesmen, do hereby
declare the nature of this invention and in what manner the same is to be per-
[Price 8d.1

page_text: formed, to be particularly described and ascertained in and by the following
statement:-
This invention has for its object an apparatus whereby acetylene gas can be
employed in photographic studios and other like places for photographing by
night.
The invention will be understood from the following description reference being
had to the accompanying drawings, in which,
Figure 1 is a front view of the apparatus partly in perspective;
Figure 2 a side view thereof, also partly in perspective.
Our acetylene gaslight apparatus comprises the following parts, namely, a
telescopic or other frame A supported on a suitable stable base B, a reflector or
diffuser C of concave or other shape, a series of burners D on a frame E arranged
obliquely at a suitable angle by which the necessary light is thrown on the object
which it is desired to photograph. The frame A is so made that its height can be
adjusted by slackening the set screw a and at the top there is a cross arm F pivoted
or ball and socket jointed at G to the frame, which carries the reflector or diffuser
aforesaid, and which also carries the frame of burners and supplies gas thereto,
through the cock H. This arm F with its burners and diffuser is supported by
means of a quadrant or arm I so that the arm F can be fixed horizontally or at
any angle required, whereby the light may be diffused and directed in the required
direction. The gas burners D are arranged in rows on cross pipes of a tubular
frame E of pipes, which frame is preferably square, and this frame is by pre-
ference placed obliquely so that the respective rows of gas jets are not directly
underneath one another. By arranging them in this way, the air has free access
to the jets and it is found that the light is steadier and less liable to flicker, and
there is less liability to smoke, than would be the case if the burners were placed
immediately underneath each other in a vertical plane. The reflector or diffuser
is arranged to diffuse the light rather than reflect it in one given point. It is
therefore painted white or white-leaded on its concave surface. The cross arm F
aforesaid is provided with a cock H for the attachment of a tube leading to the
acetylene generator.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. A new or improved acetylene gaslight apparatus applicable for use in photo-
graphic studios for photographing at night, which consists of a telescopic frame
or pillar, a reflector or diffuser of concave or other shape supported thereon, a
series of burners or jets arranged in front of the diffuser, and means for adjusting
the height of the burners and diffuser to any angle required substantially as
described.
2. In an acetylene gaslight apparatus applicable for use in photographic studios
having a reflector or diffuser and a series of gas jets in front thereof, arranging
the said jets in rows one above the other in an oblique plane, instead of placing
them in a vertical plane, whereby the air has freer access to the jets, the light is
steadier with less liability to flicker, and there is less liability to smoke.
3. The general combined arrangement and construction of parts forming our
improved studio acetylene gaslight apparatus for photographing at night sub-
stantially as set forth.
WM. P. THOMPSON & Co.,
Patent Agents, of Liverpool, Manchester, Birmingham, and London.