Improvements in and connected with Gas Cocks.
Year: 1895

page_text: Date of Application, 15th Aug., 1895
Complete Specification Left, 15th May, 1896-Accepted, 20th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in and connected with Gas Cocks.
I, JOHN FISHER LE PAGE of 17 The Crescent, Salford, in the County of
Lancaster, Doctor of Medicine do hereby declare the nature of this invention to be
as follows:-
My invention relates to improvements in gas cocks and has for its object
to so construct a gas cock that the gas may be "turned" down. low without any
risk of turning it out, and that it may also by the same cock be turned “full on
or full off."
For this purpose I construct a gas cock in the usual manner, that is to, say of
like pattern to any of those in ordinary use. On the surface of the plug, which
fits into the body of the cock, I form a groove which extends, from the edge of the
hole through the plug for the passage of gas, round three fourths of the segment
of the circumference of the plug which is comprised between the two ends of the
hole through the plug.
On the surface of the hole, in the body of the cock, in which the plug fits I form
a groove, which extends from a point where the supply hole or passage joins the
plug hole, for one sixth of the circumference of the plug hole.
'
From the outer surface of the body of the cock to a point in the centre of the
groove in the body of the cock and perpendicular to the surface of the plug hole I
drill and tap, a hole which is then fitted with a regulating screw of such length that
when screwed down as far as possible 'the end is flush with the surface of the plug
hole.
.
"
The action of this gas cock is as follows:-When turned "off," that is say to
the left, the groove in the plug is across the entrance passage of the cock and no
gas can pass beyond the plug hole which in this position lies transversely to the
gas passages through the body of the cock. Gas is turned full on in the
ordinary way, & if the tap is. then turned to the right gas passes along the groove
in the body of the cock to the hole through the plug and then along the groove
above described in the plug to the outlet passage. The size of the flame is
regulated by the screw which controls the passage of gas along the groove in the
body of the cock.
•
The important features of this invention are, that the use of a second cock or
separate mechanism is obviated, the three states of "on," "off," "low" being
produced by the ordinary movements of one tap, and that no material change is
requisite in the construction of the gas cock.
I find it convenient to have the word "on" impressed on one side of the T piece,
And the word "off" impressed on the opposite side.
I adapt my invention to gas cocks of various forms by modifications in the
arrangement of the grooves.
Dated this Twelfth day of August 1895.

page_text: Improvements in and connected with Gas Cooks.
1
I, JOHN FISHER LE PAGE of 28 Deansgate, Manchester (and late of 17 The
Crescent, Salford) in the County of Lancaster, Doctor of Medicine 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:-
1,
My invention relates to improvements in gas cocks and has for its object to so
construct a gas cock that the gas may be "turned" down low without any risk of
turning it out, and that it may also by the same cock be turned. "full on
" full off."
i
"
or
་་
For this purpose I construct a gas cock in the usual manner, that is to say of
like pattern to any of those in ordinary use.
On the surface of the plug which fits into the body of the cock. I form a groove
(A. Figs. 1. 3. 4.) which extends from the edge of the hole through the. plug for
the passage of gas round three fourths of the segment of the circumference
of the plug which is comprised between the two ends of the hole through
the plug.
On the surface of the hole, in the body of the cock, in which the plug fits I
form a groove (B. Figs. 3. 4.) which extends, from a point where the supply
hole or passage joins the plug hole, for one sixth of the circumference of the plug
hole.
'
From the outer surface of the body of the cock to a point in the centre of the
groove in the body of the cock, and perpendicular to the surface of the plug hole,
I drill and tap a hole which is then fitted with a regulating screw (C. Figs. 1. 2.)
of such length that, when screwed down as far as possible, the end is flush with the
surface of the plug hole.
The action of this gas cock is as follows-When turned "off,” as seen in
Fig. 4., the groove in the plug is across the entrance passage of the cock and no
gas can pass beyond the plug hole which in this position. Jies transversely to the
gas passages through the body of the cock.
"
Gas is turned "full on in the ordinary way and if the tap is then turned in
the opposite direction, as in Fig. 3, gas passes along the groove in the body of the
cock to the hole through the plug and then along the groove above described, in
the plug to the outlet passage.
The size of the flame is regulated by the set screw C. Figs. 1. 2. which controls
the passage of gas along the groove in the body of the cock.
The important features of this invention are, that the use of a second cock or
separate mechanism is obviated, the three states of "on"
""off" "low". being
produced by the ordinary movement of one tap, and that no material change is
requisite in the construction of a gas cock.
![
adapt my invention to gas cocks of various forms by modifications in the
arrangement of the grooves.
..
Having now particularly described and ascertained the nature of my said inven-
tion, and if what manner the same is to be performed, I declare that what I
claim' is:
1st. In gas cocks and the like forming a small groove or bye-pass (A. Figs. 1. 3. 4.)
in the plug, and a similar groove or bye-pass (B. Figs. 3. 4.) in the body, as
and for the purposes herein before described and illustrated on the accompanying
drawing.
ๆ
4
4

page_text: 2nd. In combination with the improved gas cock, the use of a set screw
screwing into the aforesaid bye-pass (B. Figs. 3. 4.) as and for the purposes set.
forth.
Dated this 14th d... G – 1000
JOHN F. LE PAGE.