Improvements in Fittings for Incandescent Gas Lamps.
Year: 1896

page_text: This Print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c. Act, 1883) as required by
the decision of the Chief Examiner of the 8th day of December 1897.
Date of Application, 16th June, 1896
Complete Specification Left, 16th Mar., 1897-Accepted, 16th June, 1897
PROVISIONAL SPECIFICATION.
Improvements in Fittings for Incandescent Gas Lamps.
I, FREDERICK SOUTHWELL CRIPPS, of 27 Great George Street, Westminster,
London, Civil Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention has for its object the better protection and longer preservation of
incandescent gas lights, more particularly as applied to public lighting in the streets.
At present the frail incandescent mantles are subject to considerable shock and
vibration due to the street traffic which has the effect in time of shattering them.
The vibrations occur both vertically and horizontally and when the burner is
rigidly fixed to its surroundings and supports, the acute jars from the street traffic
are sufficient to shatter the mantle long before it would otherwise be used up.
If the burner be supported on springs and slide telescopically on an inner tube
it is found that the friction (however slight) between the inner and outer tube is
sufficient to retard or arrest the vertical sliding movement of the burner and so
annuls the otherwise beneficial effect of the spring or springs supporting the said
burner.
To diminish, soften or absorb the effect of both the horizontal and vertical
vibrations and to avoid all frictional resistance to the free working of the burner,
I coil the gas supply pipe helow the burner into the form of a spring. This pipe
is of metal and being small in the bore and of large diameter in the volute and
having several coils, it is extremely sensitive and absorbs the damaging effect of
both the vertical and horizontal vibrations of the lamp due to passing traffic, or
otherwise.
The coiled gas supply pine may have all the coils of equal diameter, or
diminishing in diameter in the form of a cone or in one plane. The pipe may
be of any section, such as, round, oval or rectangular and fixed in any convenient
manner to the ordinary gas supply pipe and to the burner.
To assist in preserving the burner exactly central with the lantern, light spiral
springs may be fixed horizontally from the burner to vertical stay rods or other
convenient supports.
Dated this Fourth day of June 1896.
FREDERICK SOUTHWELL CRIPPS.
COMPLETE SPECIFICATION (AMENDED).
Improvements in Fittings for Incandescent Gas Lamps.
I, FREDERICK SOUTHWELL CRIPPS, of 27 Great George Street, Westminster,
5 London, Civil Engineer, do hereby declare the nature of this invention and in
Price Sd1

page_text: what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This invention has for its object the better protection and longer preservation of
incandescent gas lights, more particularly as applied to public lighting in the streets.
At present the frail incandescent mantles are subject to considerable shock and
vibration due to the street traffic which has the effect in time of shattering them.
The vibrations occur both vertically and horizontally and when the burner is
rigidly fixed to its surroundings and supports, the acute jars from the street traffic
are sufficient to shatter the mantle long before it would otherwise be used up.
To diminish, soften or absorb the effect of both the horizontal and vertical
vibrations, I support the burner, or the burner and lantern or globe on a gas supply
pipe which is coiled into the form of a sensitive spring. This pipe is of metal and
being small in the bore and of large diameter in the volute and having several
coils, it is extremely sensitive and absorbs the damaging effect of both the vertical
and horizontal vibrations of the lamp due to passing traffic, or otherwise.
In the appended sheet of illustrative drawings A in Figure 1. shows the
application of the spring pipe for the support of a gas lantern containing an
incandescent burner.
The coiled gas supply pipe may have all the coils of equal diameter as shown in
Fig. 1. at A, or diminishing in diameter in the form of a cone as in Fig. 2, or in
one plane. The pipe may be of any section, such as, round, oval or rectangular
and fixed in any convenient manner to the ordinary gas supply pipe and to the
burner or its supporting or supply pipe E.
In order to preserve the burner or lantern in its normal position, that is, upright
and central with the lamp post, light spiral adjustable springs B, may be fixed
from the said lantern, globe or burner to vertical stay rods or other convenient
supports as at C, the said supports being in rigid connection with the lamp
post, D).
Having now narticularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I am aware of the Specifi-
cation of Clay's Patent No. 6874 of 1896 and I do not claim anything described
and claimed therein and I declare that what I claim is:-
The employment of horizontal adjustable springs for preserving the central
position of the lantern, substantially as and for the purpose herein set forth.
Dated. this Fifteenth day of March 1897.
FREDERICK SOUTHWELL CRIPPS.