AN IMPROVED. COMPOUND VALVE
Year: 1885

page_text: PROVISIONAL SPECIFICATION.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of
Patent Agents, do hereby declare the nature of the said Invention for AN IMPROVED.
COMPOUND VALVE a communication to me from abroad by, George William
Appleby of Cohoes in the County of Albany and State of New York, United States
of. America, Machinist, to be as follows:-
This Invention consists in a compound valve for delivery of two liquids at once
or either alone without intermixture.
The body of the valve is made in two parts for convenience of manufacture.
The one part carries and serves as a guide for the stem of the plug and a packing
ring inserted between the plug and the inner end of said part prevents escape of
the liquid in that direction.
The other part of the body is slightly tapered internally to form a seat for the
plug. It is formed with two separate inlet passages and with four outlet bibs.
The plug has two passages which connect to branch passages opening out at the
side of the plug, there being two branches to each passage.
The side of the plug at the passages is countersunk or recessed to form seats for
slide valves which are carried by stems that pass through the plug stem and out at
the end and these are packed by glands in the end of the stem. On the hand wheel
of the stem are posts on which levers are hung by links and the levers are
severally connected to the valve stems for use in moving the valves up and down.
By opening either valve the liquid is allowed to flow from one inlet to one
outlet and out at two bibs when the other valve at that side is raised. The same
result is attained for discharging the liquid from the second inlet to one or both
outlets by opening the other valves and both deliveries can be used at once.
Either two of the bibs can be connected to either inlet passage by turning the
plug on its seat.
.
This compound valve is adapted for use on boilers, for discharging either steam
and water, or both; for heating apparatus and for other purposes of a similar
nature.

page_text: COMPLETE DIECIFICATION.
I, ALEXANDER MELVILLE CLARK, of the firm of A. M. and Wm. Clark, of
53, Chancery Lane, in the County of Middlesex, Fellow of the Institute of
Patent Agents, do hereby declare the nature of the said Invention for "AN IMPROVED
COMPOUND VALVE" (a communication to me from abroad by George William Appleby
of Cohoes in the County of Albany and State of New York, United States-of
America, Machinist) and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
This Invention consists in a compound valve containing two valves in one for!
delivery of two liquids at once or either alone without intermixture.
The plug and the body of the valve are each made with two passages, and the
outlets, of which there may be two or four, are cut off by sliding valves fitted to
the plug and operated by levers, as hereinafter described and claimed.
Reference being had to the accompanying drawings formning part of this'
Specification in which similar letters of reference indicate corresponding parts in
all the figures.
Figure 1 is a longitudinal section of the compound valve. Figure 2 is a
transverse section of the same. Figure 3 is a side view of the plug detached and,
Figure 4 is a cross section on the line x, x, of figure 1.
The body A is made in two parts as shown, for convenience of manufacture.
The part a carries and serves as a guide for the stem c of plug B, and a packing
ring d inserted between the plug and the inner end of the part a, prevents escape
of the liquid in that direction.
The part b, of the body A is slightly tapered internally to form a seat for the
plug B. It is formed with two separate inlet passages e, e¹, and with four outlet
bibs ffff. The plug B has two passages g which connect to branch passages h,
opening out at the side of the plug, there being two branches to each passage g.
The side of the plug at the passages h is counter sunk or recessed to form seats.
for slide valves i, which are carried by stems, that pass through the plug stem c
and out at the end, and these are packed by glands in the end of stem c.
On
the hand wheel m, of stem c, are posts on which levers n are hung by links o, and
the levers are severally connected to the valve stems k, for use in moving the
valves up and down.
i
By opening either valve 2, the liquid is allowed to flow from one inlet e, to one
outlet f, and out at two bibs when the other valve i at that side is raised. The
same result is attained for discharging the liquid from the second inlet i to one or
both outlets f' by opening the other valves, i, and both deliveries can be used
at once.
Either two of the bibs f, f can be connected to either passage e, e¹, by turning
the plug B on its seat.
This compound valve is adapted for use on boilers for discharging either steam
and water or both, for heating apparatus and for other purposes of a similar
nature

page_text: Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed, I declare that what
I claim is
1. The compound valve consisting of body A, made with separate inlet and
discharge passages, the plug B having separate passages and the slide valves i, seated
upon the plug and having stems extending to the outside for their operation,
substantially as described.
2. The combination in a compound valve, of the valves i stem k and levers n
with the plug B, substantially as shown and described.