Improved Full-way, Straight-through Stop Valve or Cock for Regulating the Flow of Steam, Liquids, or Gases.
Year: 1889

page_text: Date of Application, 19th Oct., 1889
Complete Specification Left, 18th July, 1890-Accepted, 30th Aug., 1890
PROVISIONAL SPECIFICATION.
Improved Full-way, Straight-through Stop Valve or Cock for
Regulating the Flow of Steam, Liquids, or Gases.
I THOMAS PARKINSON Iron and Brass Founder of Canterbury Street Blackburn do
hereby declare the nature of this invention to be as follows:-
This invention relates to that class of stop valve or cock known as straight through,
and consists of a suitable metal valve body having a straight thoroughfare and bored
out taper to receive a composition sliding plunger securely fastened to metal spindle
and made to fit tight on all sides. This plunger or plug can be made of rubber or
asbestos or any other suitable composition, and can be moved either by means of a
screwed spindle or a rack and pinion wheel for quick opening. The action of the
valve or cock is as follows:-The spindle being screwed down, the plug is pressed into
the barrel and effectually closes the straight thoroughfare, and being made of a
composition softer than the metal body any dirt on the face will not cause leakage,
but will sink into the composition without doing any injury to the body of the valve,
and consequently no steam, gas, or liquid can leak and cut or wear away valve body
barrel. The composition plug or plunger can be easily taken off spindle and renewed
when necessary. At the bottom of taper barrel a cavity is left to hold any dirt that may
be deposited with moveable plug for cleaning out.
Dated this 18th day of October 1889.
THOS. PARKINSON.
COMPLETE SPECIFICATION.
Improved Full-way, Straight-through Stop Valve or Cock for
Regulating the Flow of Steam, Liquids, or Gases.
I THOMAS PARKINSON Britannia Works Canterbury Street Blackburn Iron and
Brass Founder 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 appliances aforesaid where steam, liquids, or gases have
to be regulated by stop cocks or valves the working parts of which rapidly wear out
and the said cocks or valves have to be taken from the pipes, vessels, or other parts to
which they are attached to be repaired causing loss of time and stoppage. The
object of this invention is to remedy the defect referred to and render the valves or
cocks permanently useful and to do away with taking the valves or cocks from the
pipes or other parts when renewals are necessary. According to this my said invention,
1 employ in combination with a valve on tap body with a round taper barrel having a
straight round full way through a cone of the same taper and made from any suitable
flexible composition such as asbestos rubber, combinations of rubber and other substances
or other suitable material. This cone is made so as to be easily renewed without
taking the valve or cock from wherever fixed and is the only part of the valve that will
wear. Such being the nature and object of this my said invention the following is a
complete description of same reference being had to the accompanying drawings in
which:-
Fig. 1 is a complete section of the valve or tap.
A is the valve or tap body.
Bis the stuffing box in which works the spindle C which carries the renewable

page_text: F is a cavity plug into which may fall any grit or dirt and which when the spindle C
is screwed down may be renewed under pressure. According to this my said invention
the valves or cocks are attached to pipes, vessels, or wherever required in any suitable
way and the valve is worked and regulated by screwing the spindle C up or down
by means of the hand wheel G when the cone D requires renewing the stuffing box B is
unscrewed from the valve body A which is left permanently fixed and the set screw E
is unscrewed and the old cone D taken off the spindle and replaced with a new
one, the stuffing box B is then replaced and the valve or cock is made equal to new
without being removed from its place.
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 use in combination with a valve or tap body having a round taper barrel of
the taper flexible composition cone which enables the valve or cock to be repaired or
cone renewed without removing from its place.
Dated this 17th day of July 1890.
THOMAS PARKINSON.