IMPROVEMENTS IN COCKS AND VALVES
Year: 1884

page_text: I LIONEL DOVE of the East London Iron Works Bancroft Road in the County
of Middlesex, Engineer do, hereby declare the nature of my Invention for
IMPROVEMENTS IN COCKS AND VALVES to be as follows:-
:-
The object of my invention is to effect improvements in the construction of screw
down valves or cocks for steam, water, and other fluids. :
I construct the body of the cock with a clear straight passage through the same.
I provide a diagonal seating across the same, usually at an angle of 45°. At right
angles to the body of the cock I fit a plunger which carries at its lower end an
india rubber or other suitable elastic facing. This facing is arranged at a similar
angle to that of the valve seat. The plunger has a slot which acts as a guide, a pin
or feather being provide to slide in the slot and thus keep the plunger in its proper
position. The plunger is raised and lowered by means of a screw and handle or
hand wheel, the spindle of which is fitted with a stuffing box.
When the plunger is raised it rises clear of the passage, thus leaving a clear way
through.
My said invention is applicable to high pressure steam, hot or cold water, and
other analogous purposes, and the elastic material can be renewed when worn or
injured.
ورسام
COMPLETE SPECIFICATION.
I LIONEL DOVE, late of the East London Iron Works, Bancroft Road, but now
of the Crown Metal Works Thomas Yard Ben Jonson Road Stepney (both in the
County of Middlesex Engineer do hereby declare the nature of my said Invention
for IMPROVEMENTS IN COCKS AND VALVES 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 Invention is to effect improvements in the construction of Screw
down Valves or Cocks for steam, water and other fluids.
I construct the body of the Cock with a clear straight passage through the
same I provide a diagonal seating across the same usually at an angle of 45°, At
I Price Ad71

page_text: right angles to the body of the cock I fit a plunger which carries at. its lower end
an india rubber or other suitable elastic facing-This facing is arranged at a similar
angle to that of the valve seat-The plunger has a slot which acts as a guide, a pin
or feather being provided to slide in the Slot and thus keep the plunger in its
proper position. The plunger is raised and lowered by means of a screw and
handle or hand wheel the spindle of which is fitted with a stuffing box.
When the plunger is raised it rises clear of the passage, thus leaving a clear way
through.
My said invention is applicable to high pressure steam, hot or cold water and
other analogous purposes, and the elastic material can be renewed when worn or
injured.
And in order that my said invention may be clearly understood, reference is hereby
made to the accompanying drawings in which similar letters of reference indicate
corresponding parts in the several figures.
Fig 1 is an elevation of my invention shewing a through way steam cock :
Fig. 2 is a section of the same.
Fig 3 is a plan view of the top of the plug.
Fig 4 is a section shewing the application of my invention to a bibcock, and
Fig 5 represents the application of my invention to a bibcock with a waste
preventer.
a is the body of the cock-b is the diagonal seat.-c is the plunger with a
diagonal face corresponding to the seat band having an elastic facing d of india
rubber or vulcanite or other suitable material. The plunger has a groove or slot e
to receive the button at the end of the screw, the button being circular, to allow
the screw to revolve freely in the slot A pin f is inserted as shewn which enters
a slot f¹ in the plunger which prevents the plunger from turning round-g is a male
screw which works in the female screw whereby the plunger is raised or lowered.
i is a stuffing box. is a gland, and is a nut whereby the gland is screwed down.
In Fig 4 a quick threaded screw g is applied to the bibcock there shewn.
In Fig 5 a spring is inserted to press down the plunger and a plain rod m is
fitted to the plunger-the hand lever n is fitted to the head of the rod to raise is,
and when let go the valve is self closing.
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
1 The manufacture and use of cock and taps with diagonal seats and diagonally
faced plungers substantially as hereinbefore described and shewn on the drawings.
2. The general construction and arrangement of parts together forming my
improvements in cocks and valves as hereinbefore described and shewn on the
drawings or any mere modification thereof,