IMPROVEMENTS IN GAS LAMPS
Year: 1879

page_text: LETTERS PATENT to Benjamin Kitt, of the City and County of Bristol, Civil
and Gas Engineer, for the Invention of "IMPROVEMENTS IN GAS LAMPS."
PROVISIONAL SPECIFICATION left by the said Benjamin Kitt at the Office
of the Commissioners of Patents on the 18th September 1879.
BENJAMIN KITT, of the City and County of Bristol, Civil and Gas Engineer.
"IMPROVEMENTS IN GAS LAMPS."
This Invention has for its object improvements in public and private lighting,
whereby additional illuminating power is obtained without any increased consump-
tion of gas, and is more particularly applicable to street lighting.
This I effect by substituting for the ordinary burner with which street lamps
are fitted and which consumes, say, 5 cubic feet of gas per hour, two burners, each
consuming, say, 2' cubic feet per hour, thus effecting an equal division of the
light; I then place between two such burners in any suitable position, and fixed
in any convenient manner, two or more concave reflectors which are each adjusted
by means of a central thumb screw or otherwise to such a focus as will afford the
best reflection and radiation of the light. The number of concave reflectors employed
depends upon the size of the area to be illuminated.
By this simple and effective method I obtain double the illuminating power to
that afforded by the ordinary single burner of a street lamp without any increased
consumption of gas, and at a very slight additional cost.
My Invention may also be readily adapted for private lighting, the number of
concave reflectors employed being regulated as circumstances may require.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Benjamin Kitt in the Great Seal Patent Office on the 28th February
1880.
BENJAMIN KITT, of the City and County of Bristol, Civil and Gas Engineer.
"IMPROVEMENTS IN GAS LAMPS."
This Invention has for its object improvements in gas lamps, whereby additional
illuminating power is obtained without any increased consumption of gas. My
Invention is more particularly applicable to street lighting; and in order that the
same may be better understood and readily carried into effect I will now, with the
aid of the accompanying Drawings, proceed more particularly to describe and ascer-
tain the same.
Figure 1 of such Drawings shews a view in side elevation, and Figure 2 a view
in front elevation of one of my improved lamps.
In order to carry out my Invention I substitute for the ordinary burner with
which street lamps are fitted, and which consumes, say, five cubic feet of gas per
hour, two burners a, a, each consuming, say, 21/2 cubic feet per hour, thus effecting
an equal division of the light. I then place between such two burners, in any
suitable position and fixed in any convenient manner, two or more concave reflectors
b, b, which are each adjusted by means of a central thumb screw or its equivalent
to such a focus as will afford the best reflection and radiation of the light. The
number of concave reflectors employed depends upon the size of the area to be
illuminated.
By this simple and effective method I obtain a greatly increased illuminating
power to that afforded by the ordinary single burner of a street lamp without any
increased consumption of gas, and at a very slight additional cost.
My Invention may also be readily adapted for private lighting, one or more
concave reflectors being employed as circumstances may require.
Having thus described the nature of my said Invention and the manner of
carrying the same into effect, I would have it understood that I claim as novel, the
improved construction of gas lamp, substantially as herein before described and
illustrated.
In witness whereof, I, the said Benjamin Kitt, have hereunto set my hand
and seal, this Twenty fifth day of February, in the year of our Lord One
thousand night bundred end eighty
BENJAMIN KITT. (L.S.)