Year: 1886

page_text: I, JOHN THOMAS NAYLOR of 53 Preston Street, Bradford in the County of York
Brass Finisher, do hereby declare the nature of this invention to be as follows:-
This invention consists in improvements in Valves for Steam Water or Gas whereby
the inner valve which is generally in operation may be taken out and reground into
its seat, while the steam, water, or gas is prevented from escaping, or interfering with
the regrinding process by causing to turn in its seat the tapered plug within which
the valve generally in operation and its seat are placed.
To carry out my invention I form the barrel or shell of the Valve in the usual
manner with inlet and outlet passages at different levels. This barrel or shell is
bored taper and into it is fitted a taper plug which has a passage through it similar to
that of an Ordinary tap. This taper plug is hollow, and is fitted inside with a seat
and valve which is operated by means of a screwed spindle passing through a stuffing
box. The top of the tapered plug is formed square or hexagonal to fit a screw
spanner so, that when it is necessary to shut off the pressure of steam or water from
the inner valve in order to enable it to be taken out for repairs, the tapered plug is
turned a quarter revolution in the barrel or shell whereby the pressure is shut off as
by an ordinary plug tap, and the inner valve may then be removed.
Dat this Twenty first day of December 1886
WM. JAS. BAKER,
Town Hall Chambers, Bradford,
Agent for the Applicant.

page_text: I, JOHN THOMAS NAYLOR of 58 Preston Street, Bradford in the County of York,
Brass Finisher, 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 consists in improvements in valves for steam, water or gas, whereby
the inner valve which is generally in operation may be taken out and re-ground into
its seat while the steam, water or gas is provented from escaping or interfering with
the re-grinding process, by causing to turn in its seat the tapered plug, within which
the valve generally in operation, and its seat are placed.
To carry out my invention, I form the barrel or shell of the valve in the usual
manner with inlet and outlet passages at different levels. This barrel or shell is
bored taper, and into it is fitted a taper plug which has a passage through it similar
to that of an ordinary tap. This taper plug is hollow, and is fitted inside with a soat
and valve which is operated by means of a screwed spindle passing through a stuffing
box. The top of the tapered plug is formed square or hexagonal to fit a screw
spanner so that when it is necessary to shut off the pressure of steam or water from
the inner valve in order to enable it to be taken out for repairs the tapered plug is
turned a quarter revolution in the barrel or shell, whereby, the pressure is shut off, as
by an ordinary plug tap and the inner valve may then be removed.
In order to enable my invention to be fully understood, I will proceed to describe
the same with reference to the accompanying drawings in which Figure 1 represents
a side elevation of my improved valve partly in section. Figure 2 represents a front
elevation of the tapered plug showing the inlet and outlet passages.
Similar letters refer to similar parts in both figures.
The taper barrel or shell is represented at A, into which is fitted the tapered plug B,
having inlet and outlet passages C and D respectively, which passages may be formed
in different positions to suit the various kinds of valves. The valve seat E may
either be formed or fitted in the tapered plug B in such a manner that it can be taken
out when required to be re-ground. When it is necessary to take the valve F out of
the plug B to be repaired, the plug B is turned part of a revolution, thereby removing
the passages C and D away from the passages Ġ and H and shutting off the pressure
of steam or water from the inner valve.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
In steam, gas or water valves the tapered plug B having inlet and outlet passages
formed at different levels for the purpose substantially as described and represented in
the accompanying drawings.
antiath day of Santamber 1887
887
FRANK JAS. WALWORTH,
Town Hall Chambers,
72, New Market Street, Bradford,
Agent for the Applicant.