An Improved Balance Valve for Steam and other Uses.
Year: 1893

page_text: Date of Application, 23rd Nov., 1893
Complete Specification Left, 23rd Aug., 1894-Accepted, 3rd Nov., 1894
An Improved Balance Valve for Steam and other Uses.
I, MOSES EDWARD TEAGUE of the Steam Mills, Cinderford Gloucestershire,
Engineer do hereby declare the nature of this invention to be as follows :-
The object of my present invention is to produce a balance valve of extreme
simplicity of construction and the cost of manufacture being much less than applies
in the cases of ordinary double beat valves at present in use; and, also, such as may
be relied upon for being thoroughly steam, air, gas or water tight.
It forms a special feature distinctive of this invention that the valve is hollow
and the steam (when steam is employed) is conducted through slots in central
part of valve, which permits of a double portway being used, and thus reduces the
length of stroke required, by one half.
In accordance with my invention, the cylindrical valve box has an annular
chamber cored inside for steam (taking the case where steam is employed) to pass
round outside of the valve box to outlet branch. Top and bottom port slots are
formed in the valve casing or box communicating with interior of same and the
external surrounding chamber or belt aforesaid and of suitable area for require-
ments. I employ a double piston cylindrical valve in one with pistons commanding
the top and bottom port slots above referred to. The pistons are fitted with any
desired or suitable type of steam- (taking the case where steam is employed) tight
piston rings. The valve is made hollow in centre to allow of steam passing
throughout from steam inlet at foot, to cover at top of valve box or casing. The
" waist " or that portion of valve between the two pistons aforesaid is reduced in
diameter and vertical slots formed therein to allow of free circulation of the steam
(taking the case where steam is employed) from the interior of the valve to the
outer surrounding space between the valve and valve casing above referred to
formed by the contraction aforesaid of the portion of the valve between the two
pistons in order to supply the upper of the steam outlets or ports above
referred to.
The top part of valve is furnished with central boss and radiating ribs or arms
and the valve by spindle passing through stuffing box and gland formed in top cover
of valve casing and secured to central boss aforesaid, of the valve.
1
The whole of the apparatus aforesaid may be made of any suitable metal or
material: and, although I have referred to the employment of my improved valve
for steam uses, I wish it to be understood that it may also be advantageously used
for controlling the passage of air, gas, water or any other fluid.
Dated the 22nd day of November 1893.
COMPLETE SPECIFICATION.
An Improved Balance Valve for Steam and other Uses.
I, MOSES EDWARD TEAGUE, of the Steam Mills, Cinderford Gloucestershire,
Engineer, 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 :-
The object of my present invention is to produce a balance valve of extreme

page_text: simplicity of construction and the cost of manufacture being much less than applies
in the cases of ordinary double beat valves at present in use; and, also, such as may
be relied upon for being thoroughly steam, air, gas or water tight.
It forms a special feature distinctive of this invention that the valve, is hollow
and the steam (when steam is employed) is conducted through slots formed
in the central part of the valve, which permits of a double set of portways being
used; and, thus reduces the length of the stroke required by one half.
And in order that my invention may be the better understood, I have appended
the accompanying sheet of drawings, in which
Figure 1, illustrates a vertical section of my improved valve.
Figure 2 a detached plan view of the double piston valve; and,
Figure 3 shews a side elevational view, to a reduced scale, of an arrangement
which I employ, for working my improved valve, as an admission or cut off
valve.
In accordance with my invention, the cylindrical valve box a has an annular
chamber cored inside, for steam (taking the case where steam is employed) to
pass round the outside of the inner valve box d to outlet branch e. The top and
bottom port slots f are formed in the inner valve casing or box d communicating
with the interior of same and the external surrounding annular chamber b afore-
said, and of suitable area, according to requirements.
I also employ a double piston cylindrical valve 9 in one with the pistons h
commanding the top and bottom port slots above referred to. Said pistons h are
fitted with any desired or suitable type of steam (taking the case where steam is
employed) tight piston rings. The valve g is made hollow in the centre to allow
of steam passing throughout from steam inlet k at foot, to cover m at top of the
valve box or casing.a. The "waist" or that portion of the valve g between the
two pistons aforesaid, is reduced in diameter, and vertical slots are formed
therein, to allow of free circulation of the steam (taking the case where steam is
employed) from the interior of the valve, to the outer surrounding space n between
the valve, and valve casing d above referred to, (formed by the contraction of the
portion of the valve between the two pistons) in order to supply the upper of the
steam outlets or ports fabove referred to.
h
The top part of the valve g is furnished with a central boss c and radiating ribs
or arms, and the valve is worked by a spindle passing through the stuffing box
and gland formed in top cover m of the valve casing, and secured to the central
boss c aforesaid of the valve.
In cases where it might be desired to utilize my improved valve as an admission
or cut off valve, a convenient arrangement for effecting this would be as shown in
Figure 3, whereby a quick cut off is effected by gearing a countershaft t to run
twice as fast as the engine crankshafts, by means of two gear wheels u, u. On
said countershaft t would be secured an eccentric v to which would be attached a
spindle or rod w for working the admission or cut off valve .. Also secured
to the engine crankshafts, would be a second eccentric y. for working the slide
valve i.
Under this arrangement of working our improved valve, the latter in addition
to cutting off the steam at any fixed point of the stroke, serves to regulate the inlet
to both ends of the cylinder, and thus enables the steam lap of the slide valve to
be dispensed with. The slide valve in such case being used for exhaust only.
Also the cut off valve, makes two strokes, to the one stroke of the engine, the
valve being in the same position for steam admission to the cylinder at the
commencement of each stroke of the engine.
My improved valve can also with facility be used as throttle, exhaust; baffler &c.
valves.
The whole of the apparatus aforesaid, may be made of any suitable metal or
material; and, although I have referred to the employment of my improved valve
for steam uses, I wish it to be understood that it may also be advantageously used
for controlling the passage of air, gas, water or any other fluid.

page_text: Having now particularly described and ascertained the nature of my said inveu-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The improved balance valve for steam and other uses consisting of the inner
valve casing d, double piston valve g in one with the pistons h, slots l, double
portways f and annular chambers b, n, substantially as, and for the purposes herein
set forth and shown in the accompanying sheet of drawings.
Dated the 23rd day of August 1894.
V. LAZARUS,
1, Furnival Street, Holborn, E.C., Agent for Applicant.