Year: 1888

page_text: I, ARCHIBALD BRUCE of 75 Cathedral Street, Glasgow, in the County of Lanark,
Plumber, do hereby declare the nature of this Invention to be as follows :-
The cock or valve constituting this Invention consists of a chamber having a
branch leading away from the bottom thereof to the source of supply of the liquid
or vapour to be supplied through the valve, another branch leading from the side
of the chamber to the point where the said liquid or vapour is to be used, whilst
the third branch connected to cover of the chamber acts as an exhaust or waste
pipe. Within the chamber a circular valve or plug is situated the said valve or
plug having at its lower end an india rubber or other like cushion which in closing
the source of supply presses against a nipple or seat projecting upwards from the
bottom of the chamber. The plug or valve is of lesser diameter than the interior
diameter of the chamber and it is guided in its movements by wings or feathers
cast or formed on the chamber. The valve is truncated and into the hollow of it
the screwed end of a spindle passing out through a stuffing gland on the cover of
the chamber is tapped the said screw having a quick thread. The under surface
of the cover has also applied to it an india rubber or equivalent surface against
which the valve whilst in the act of supplying presses so cutting off the communication
to the exhaust. On the outer end of the screwed spindle a weighted lever is carried
and the valve is caused to open or close through the motion of the said weighted lever,
a movement to the right lifting the valve from its seat, and permitting the liquid or
vapour to pass through the annular space around the valve to the point where the said
vapour or liquid is to be used the said motion at the same time closing the communi-
cation to the exhaust. On the other hand when the weighted lever is moved to the
left the valve is forced down on its seat thereby cutting off the supply whilst at the
same time communication is opened between the point where the liquid or vapour has
been used and the waste or exhaust pipe.
Dated this Treants fifth day of Now 1000
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.

page_text: I, ARCHIBALD BRUCE, of 75 Cathedral Street, Glasgow, in the County of Lanark,
Plumber 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 :-
This invention relates to improvements in the construction of three way cocks or
valves.
The cock or valvo constituting this invention consists of a chamber having a branch
leading away from the bottom thereof to the source of supply of the liquid or vapor
to be supplied through the valve. Another branch leading from the side of the
chamber to the point where the said liquid or vapor is to be used, whilst the third
branch connected to the cover of the chamber acts as an exhaust or waste pipe.
Within the chamber a circular valve or plug is situated, the said valve or plug having, at
its lower end, an india-rubber or other like cushion, which, in closing the source of supply,
presses against a nipple or seat projecting upwards from the bottom of the chamber
The plug or valve is of lesser diameter than the interior diameter of the chamber, and
is guided in its movements by wings or feathers cast or formed on the chamber. The
valve is truncated, and into the hollow of it, the screwed end of a spindle, passing out
through a stuffing gland on the cover of the chamber, is tapped, the screw having a
quick thread. The under surface of the cover has also applied to it an india-rubber or
equivalent surface against which the valve, whilst in the act of supplying, presses, so.
cutting off the communication to the exhaust.
And in order that my said invention may be properly understood, I havo hereunto
appended an explanatory sheet of drawings wherein :-
Fig. 1, is a side elevation of my improved three way cock or valve; fig. 2, is a
vertical section, and fig. 3, a plan of the same, whilst fig. 4, is a detail sectional view
showing the valve in side olevation.
"
REFERRING TO THE DRAWINGS.
a, is the hollow chamber which is made with a branch b. leading away to the source
of supply of the liquid or vapor, and another branch c, leading from the side of the
chamber to the point where the said liquid or vapor is to be used, whilst the third or
waste" branch d, is made as part of, or is connected to the cover p, of the chamber, a.
Within the chamber a, the valve or plug e, is situated. This valve which is cylindrical
in shape has at its lower end an india-rubber or other cushion f, which may be held
in position by a metal disc g, and a screw cap h. and which, in closing the source of
supply, presses against a nipple or seat i, which projects upwards from the bottom of
the chamber a. The plug or valve e, is of lesser diameter than the interior of the
chamber a, and is guided in its movements by forked projections j, made or cast on it
and which freely slide on guide feathers or wings &, (see fig. 4) cast or formed on the

page_text: chamber a. The valve e, is made hollow and is screw tapped for the reception of the
screwed end of a spindle 7, which passes out through a stuffing gland o, on the cover p,
of the chamber a. The screw has preferably a quick thread, as shown, in order to
secure a rapid action when the spindle 1, is turned to the right or left. The valve has
preferably on its upper end a circular ridge or knife edge m, which, when the valve e,
is drawn up by the action of the spindle for the purpose of allowing the liquid or
vapor to enter the chambor through the inlet b, presses against a circular india-rubber
or equivalent scat n, let into the cover p, of the chamber a, and so cuts off communi-
cation with the exhaust d. The valve e, is caused to open or close through the
motion of the screwed spindle 1, a turning movement to the right lifting the valve e,
from its seat i, and permitting the liquid or vapor to pass through from the inlet b,
into the annular space around the valve from whence it passes by the branch
the point where the said liquid or vapor is to be used; the said motion at the same
C, to
time closes the communication to the exhaust d. On the other hand when the
screwed spindle is turned to the left, the valve e, is forced down on its seat i,
thereby cutting off the supply whilst at the same time communication is opened
between the point where the liquid or vapor has been used and the waste or exhaust
pipe dl.
The spindle may be turned to right or left by the action of a weighted lover or
tumbler secured to its outer end, or by any other suitable arrangement.
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. In threo way cocks, a valve made hollow and screw tapped for the reception of
a screwed spindle, the movements of said screwed spindle operating the valve, substan-
tially as hereinbefore set forth.
2. In three way cocks, the application and use of a hollow screw tapped valve having
a cushion of rubber, or equivalent material, at one end, and a circular ridge, or its
equivalent, at the other end, substantially as and for the purposes hereinbefore set forth.
3. In three way cocks the combination with a valve operated by a screwed
spindle working therein, of gnide feathers or wings, substantially as and for the
purposes herein before set forth.
4. The general arrangement and combination of parts of my improved three way
cock or valve, substantially as hereinbefore describeil and shown on the drawings
nnexed.
Dated this 22nd day of February 1880
H. D. FITZPATRICK,
70, Wellington Street, Glasgow,
Agent.