Holes and for other Purposes.
Year: 1885

page_text: Holes and for other Purposes.
I, CHARLES JOSEPH BATES, of 13 Bowes Road, Frindsbury, Rochester in the
County of Kent, Engineer do hereby declare the nature of my said invention for
AN IMPROVED COCK APPLICABLE AS AN ASH COCK FOR SHIPS' STOKE HOLES AND
FOR OTHER PURPOSES to be as follows:-
1
My Invention relates to an improved cock especially intended for use as a so
called ash cock in the stoke hole, but which is also applicable for other purposes.
The cock consists of a disc valve of india rubber or other suitable material
clamped upon a spindle and seated against a perforated diaphragm within a barrel
or cylinder which is attached at its inner end to the inlet pipe from the sea cock in
the ships' side. The barrel is provided with a discharge spout at the side and is
closed at the outer end, the valve spindle passing through the perforated seat or
diaphragm and the outer end of the barrel and having a spiral spring upon it by
which the valve is kept closed against its seat when there is not sufficient pressure
behind it to do so. The spindle is provided with a push knob for raising the valve
off its seat.

page_text: Holes and for other Purposes.
I CHARLES JOSEPH BATES of 13 Bowes Road, Frindsbury, Rochester in the
County of Kent 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:-
My Invention relates to an improved cock or valve for use in a steamer's stokè
room for the purpose of admitting water to cool ashes and hence called an "ash
cock," the object in view being to supersede the plug cock at present in use by a
valve which closes automatically with the pressure of the water, whereby all
liability of leakage into the bilge is avoided, such leakage and even the filling of
the ship with water being likely to occur with the ordinary cock through
carelessness.
My improved valve is simple in construction and is less liable to get out of order
and less expensive both as regards manufacture and repairs, than the ordinary
plug cock.
Reference is to be had to the accompanying drawings forming part of this
Specification, wherein figure 1 is an elevation, figure 2 a central vertical section
and figure 3 an underside plan of my improved ash cock.
It consists of a disc valve of india rubber or other suitable material a clamped
upon a spindle b and seated against a perforated diaphragm c at the end of a barrel
or cylinder & which is provided at its lower end with an enlarged base or flange d
by which it may be bolted or otherwise attached to the inlet pipe from the sea cock
in the ship's side. The barrel d is provided with a discharge spout e at the side
and is closed at the upper end, the valve spindle b passing through the seat or
diaphragm c and the closed upper end of the barrel, and having a spiral spring f
upon it by which the valve is kept closed against its seat c, when there is not
sufficient pressure of water behind it to close it. The spindle b is provided with a
push knob between which and the closed top of the barrel d the spring fis
confined, said spring being received within a cup h cast on the top of the barrel.
The barrel d with its base or flange d¹, perforated diaphragm c, spout e, closed
upper end and cup h, are all cast in one piece.
The indiarubber or leather facing a of the valve is confined between a metal
disc or backing i of the same size as the indiarubber valve and a collar k, the disc i
and collar being formed with or brazed on the spindle b, the valve facing being
sprung over the collar into its place. The backing disc is held by the spring f
and the pressure of water against the diaphragm or seat c which has a ring of
perforations c¹. These are normally covered by the valve and their combined area
is less than the sectional area of the spout e so that no packing is required around
the spindle at the top of the barrel,

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
The construction of the spring push valve and casing as herein described and
represented in the drawings and the employment thereof as a so called "ash cock"
in a steamer's stoke room as described.