Improvements in or relating to the Construction of Stop Valves.
Year: 1898

page_text: Date of Application, 9th Feb., 1898
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Construction of Stop Valves.
I, JOSEPH PIMBLEY, of 684, Manchester Road, Moses-Gate, near Manchester,
in the County of Lancaster, Engineer, do hereby declare the nature of my said
invention to be as follows:-
-
This invention refers to improvements in or relating to the construction of stop
valves employed for regulating the flow of steam, water, gas, and other liquids
and in means for operating the same. This I effect by constructing the valve
box or outer casing in two or more parts bolted together and provided with the
necessary bearings or stuffing boxes and glands for the operating spindle. The
facing of the valve casing is lined or provided with a covering of brass or other
suitable metal truly turned up and ground to make a tight joint with the circular
valve disposed thereon. The circular valve is provided on its outer periphery
with teeth or cogs into which gears a worm mounted on an operating shaft or
spindle the latter being provided with a hand wheel or handle to actuate the
same in either direction. Angular pieces are provided to force or press down the
valve when closed to ensure of a perfectly tight joint being effected.
An impor-
tant feature of this valve is that when open a full clear bore or passage equal to
the diameter of the valve is obtained, thereby reducing the friction of gas, steam,
water, and other liquids passing through the same to a minimum.
Dated the 8th February 1898.
EDMUND CHADWICK,
Agent.
Improvements in or relating to the Construction of Stop Valves.
I, JOSEPH PIMBLEY, of 684, Manchester Road, Moses-Gate, near Manchester,
in the County of Lancaster, Engineer, do hereby declare the nature of my said
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 refers to improvements in or relating to the construction of stop
valves employed for regulating the flow of steam, water, gas, and other liquids
and in means for operating the same. This I effect by constructing the valve
box or outer casing in two or more parts bolted together and provided with the
necessary bearings or stuffing boxes and glands for the operating spindle. The
facing of the valve casing is lined or provided with a covering of brass or other
suitable metal truly turned up and ground to make a tight joint with the circular
valve disposed thereon. The circular valve is provided on its outer periphery
TD 017

page_text: with teeth or cogs into which gears a worm mounted on an operating shaft or
spindle; the latter being provided with a hand wheel or handle to actuate the
same in either direction. Angular pieces are provided to force or press down the
valve when closed to ensure of a perfectly tight joint being effected.
An impor-
tant feature of this valve is that when open a full clear bore or passage equal to
the diameter of the valve is obtained, thereby reducing the friction of gas, steam,
water, and other liquids passing through the same to a minimum.
DESCRIPTION OF DRAWINGS.
Fig. 1 is an internal side elevation with one side or end of the valve box removed,
and Fig. 2 a sectional end elevation through line A B in Fig. 1.
The valve box or outer casing consists of the parts C and D secured together by
the bolts E. The valve box or outer casing is provided with the bearing G and
stuffing box H, the latter being fitted with the gland I through which passes the
operating spindle J. The facing K in the inside of the parts C and D of the valve
box is truly turned up and ground to make a tight joint with the circular valve L
disposed thereon, The circular valve L is provided on its outer periphery with
the teeth or cogs M into which gears the worm O on the operating shaft or
spindle J the latter being provided with the hand wheel R to actuate the same
in either direction. The part D of the valve box or outer casing is provided
internally with the angular pieces S against and in connection with which they
operate in connection with the angular pieces T in the circular valve L, which
ensures of the circular valve L being forced or pressed against the facing K when
the circular valve L is closed thereby causing a perfectly tight joint to be effected.
When the valve is open as shown in Fig. 2 a full clear bore or passage equal to
the diameter of the pipes or valve is obtained, thereby reducing the friction of gas,
steam, water, and other liquids passing through the same to a minimum.
lieu of the hand wheel R a handle or other mechanical means may be employed
for rotating the spindle J to open and close the valve. When it is desired or
necessary to close the valve the hand wheel R is rotated sufficiently to move the
circular valve L until the opening W assumes the position shown in dotted lines
in Fig. 1. From the construction of this valve it will be readily seen that it
may be operated and regulated from full bore to an infinitesimal degree of opening
and vice-versa according to requirements, thereby producing a desideratum long
felt in the trade.
In
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: :-
The general arrangement construction and combination of parts composing the
improvements in or relating to the construction of stop valves consisting of the
parts C and D bolted together, and provided internally with the turned and ground
face K, and angular pieces S, the circular valve Ľ provided with the angular
pieces T and the teeth or cogs M in which gears the worm O on the shaft or spindle J:
the whole being operated and applied substantially as described and as illustrated
in the drawings.