Improvements in Gas Fittings.
Year: 1891

page_text: Date of Application, 29th Dec., 1891
Complete Specification Left, 25th Sept., 1892-Accepted, 12th Nov., 1892
PROVISIONAL SPECIFICATION.
Improvements in Gas Fittings.
I, THOMAS RATTRAY ANDERSON, of 15 Balfour Street, Dundee, in the County
of Forfar, N.B. Plumber, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in gas fittings, its object being to lessen
the waste of gas and is specially applicable to the lighting of offices, workshops,
and the like.
There are many occupations in which gas light has to be used intermittently,
that is to say the clerk or workman may have to move about from place to place,
in which case he may require two or more gas jets placed in different situations,
and therefore, if it be required of him to try and lessen the consumption of gas, he
must carefully turn down each light, when he is finished with it; an operation
which the indolent or careless generally do not care to perform. My invention
consists in applying a valve to the gas pipe or cock in such a manner, that by
simply giving it a slight push the light is lowered the requisite amount, and that
without having to touch the key.
In carrying out my invention according to one modification as applied to an
elhow cock, universal centre joint, or the like, I apply the valve preferably at the
elbow or corner immediately past the key, that is to say the gas after passing the
key proceeds past the valve in a direction parallel to its axis. The valve spindle
passes out through a suitable stuffing box and terminates in a knob. When the
knob is fully out the valve is open and the gas is free to pass to the burner without
obstruction; but when the knob is in, and the valve on its seat, only a small
quantity of gas can flow through the byepass. In order that there may be little
danger of the byepass being chocked, I make it terminate in a groove in the valve
instead of coming directly to the spindle.
open
the gas
According to another modification as applied to pillar cocks and the like, I apply
the valve to the key, the axis of both coinciding. When the valve is
flows through the key in the ordinary manner, but when it is closed it passes at
right angles to the axis of the valve through a small groove or channel in the said
valve.
D this o6th day of December 1891.
GEO. C. DOUGLAS & Co.,
Applicant's Agents.
COMPLETE SPECIFICATION.
Improvements in Gas Fittings.
1, Thomas RatTRAY ANDERSON, of 15 Balfour Street, Dundee, in the County
of Forfar, N.B. Plumber, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
This invention relates to improvements in gas fittings, its object being to lessen
the waste of gas and is specially applicable to the lighting of offices, workshops,
and the like.
There are many occupations in which gas light has to be used intermittently,
that is to say the clerk or workman may have to move about from place to place,
in which case he may require two or more gas jets placed in different situations,
and therefore, if it be required of him to try and lessen the consumption of gas, he
=

page_text: must carefully turn down each light when he is finished with it, an operation which
the indolent or careless generally do not care to perform. My invention consists
in applying a valve to the gas pipe or cock in such a manner, that by simply giving
it a slight push the light is lowered the requisite amount, and that without having
to touch the key.
The accompanying sheet of explanatory drawings illustrates the method of
carrying out and applying my invention.
Figure 1. is a sectional elevation of an attachment provided with a control valve
in the closed position.
Figure 2. is a sectional elevation of a somewhat similar attachment to that shewn
in Figure 1. but with the control valve open.
Figure 3. shows how the control valve may be applied to an elbow joint, and
Figure 4. its application to a universal centre joint.
In these drawings the same reference numerals are used to mark the same or like
parts wherever they are repeated.
In carrying out my invention according to one modification as applied to an
elbow joint (Figure 3.), universal centre joint (Figure 4.) or the like, I apply the
valve preferably at the elbow or corner 5. immediately past the key 6, that is to
say the gas-as shewn by the arrows after passing the key, proceeds past the
valve 7. in a direction parallel to its axis. The valve spindle 8. passes out through
a suitable stuffing box 9. and terminates in a knob 10. When the knob is fully
out, the valve is open and the gas is free to pass to the burner 11. without obstruc-
tion; but when the knob is in, and the valve on its seat, only a small quantity of
gas can flow through the byepass 12. In order that there may be little danger of
the byepass being choked, I make it terminate in a groove 13. in the valve instead
of coming directly to the spindle.
According to another modification the axis of the valve 7. may be at right angles
to the passage through which the gas flows as shewn in Figures 1. and 2. in which
case the byepass may consist of a small groove 14, or a screw 15. may be
employed to keep the valve from coming on to its seat and so permit of a small flow
of gas when the knob is in.
It is obvious that a valve constructed as described may be used in connection
with the main pipe, so that all the jets in communication with it may be controlled
by the said valve.
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 :-
(1) The construction and arrangement of parts for controlling the flow of gas,
substantially as hereinbefore described and illustrated by Figure 3.
(2) The construction and arrangement of parts for controlling the flow of gas,
substantially as herein before described and illustrated by Figure 4.
(3) The construction and arrangement of parts for controlling the flow of
gas, substantially as hereinbefore described and illustrated by Figure 1.
(4) The construction and arrangement of parts for controlling the flow of gas,
substantially as herein before described and illustrated by Figure 2.
(5) Controlling the supply of gas to a number of jets from the one valve,
substantially as described."
Dated this 26th day of September 1892.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicant.