Improvements in Taps, Cocks, and similar Valves.
Year: 1898

page_text: Date of Application, 19th Jan., 1898
Complete Specification Left, 19th Oct., 1898-Accepted, 26th Nov., 1898
Improvements in Taps, Cocks, and similar Valves.
I, WILLIAM STEEL NEWTON, of 2, Edgmond Street, Seacombe, in the County
of Chester, Certified Plumber, do hereby declare the nature of this invention to
be as follows:
-
This invention has for its object to provide a means of withstanding the cor-
roding and damaging effect of hard water and certain acids, and liquids, upon
the seatings of taps, cocks, and similar valves.
According to this invention I protect the seatings of cocks, and valves with
an enamelled surface. The flux or composition of such enamel will vary with
the different metals of and purposes to which such cocks or valves are applied,
but in most cases the enamelling flux now employed on hardware, or a variation
thereof will be employed.
In water taps I prefer to use circular ring seatings, coated with enamel and
such ring seatings or other forms of seatings, may be provided with grooves,
indents, or other provisions for more effectually attaching the enamel thereto.
After the enamelling flux or composition has been applied to the seating, the
cock or valve is subjected to heat in the ordinary process of enamelling.
Instead of enamelling the seats of cocks or valves, I may enamel the valves
themselves, and place a leather washer or other suitable washer upon the seats.
Dated this 18th day of January 1808
J. A. COUBROUGH,
Registered Patent Agent (Qual. bv Exam.),
10, St. George's Crescent, Liverpool, Agent for the Applicant.
I, WILLIAM STEEL NEWTON, of 2, Edgmond Street, Seacombe, in the County
of Chester, Certified Plumber, 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 has for its object to provide a means of withstanding the cor-
roding and damaging effect of hard water and certain acids and liquids upon
the seatings of taps, cocks, and similar valves.

page_text: According to this invention I protect the seatings of cocks and valves, with
an enamelled surface. The flux or composition- of such enamel will vary with
the different metals of and purposes to which such cocks or valves are applied,
but in most cases the enamelling flux now employed on hardware, or a variation
thereof, will be employed.
In water taps I prefer to use ring seatings faced with enamel, and such ring
seatings, or other forms of seatings, may be provided with grooves, indents, or
other provisions for more effectually attaching the enamel thereto. For instance
I cast, turn, or otherwise form a groove in the seating of an ordinary water tap,
which groove. may be one-eighth of an inch deep and one-eighth wide, and this
groove
I fill with powdered enamel of any well known and suitable composition.
In order that the powdered enamel may be readily placed in the seating I prefer
to raise the latter somewhat, in casting the tap, so that it is more accessible from
the valve spindle aperture of the tap.
After the enamelling flux or composition has been applied to the seating, the
tap or cock is subjected to heat in the ordinary process of enamelling, whereby
the enamel is fused or vitrified and so attaches itself to the seating. The seating
then undergoes the process of annealing. Sufficient enamel should be used to
stand flush with or slightly above the metal of the seating.
When inaccessibility of the seating or other cause renders it inconveniènt'to
fuse or vitrify enamel directly on the seating, I form a ring of enamel in" a
suitable mould, which ring I place in the groove of the seating made to receive
it, and secure it therein by some suitable cement or packing.
In other cases I employ a loose metallic seating, and provide the same with an
enamelled face by either of the methods above described. Such loose seating
may be conveniently screwed into a recessed aperture in the body of the tap,
which has been screw threaded to receive it.
I have found that commercial enamel such as is used upon enamelled letters,
household utensils, and hardware, is suitable for the purpose of my invention.
Such enamel adheres most readily to gun-metal.
Instead of enamelling the seat of a cock or valve, I may enamel the face of
the valve thereof, by either of the methods above described, and in this case,I
dispose a leather washer or other suitable resilient washer upon its seat.
It must be understood that whether the seating of a tap, cock, or valve has an
enamelled surface, or the valve itself has an enamelled surface, such enamelled
surface must be opposed by a resilient surface such as a leather washer or the
like.
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 use of enamel, of the kind herein specified, for the purpose of facing
the seating or the valve of taps, cocks, and similar valves, substantially as and
for the purpose herein described.
2. The employment in cocks, taps, and similar valves, of an enamel faced
seating, in combination with a valve possessing a resilient washer or seating,
substantially as and for the purpose herein described.
3. The employment in cocks, taps, and similar valves, of an enamel faced
valve, in combination with a seating having a resilient surface, substantially as
and for the purpose herein described.
4. The method of providing the seating of a tap, cock, or similar valve with
an enamelled face, which consists in grooving said seating, in filling such groove
with enamel flux or coniposition, in then subjecting the enamel to heat whereby
it is fused or vitrified, and in finally annealing the enamel, substantially as and
for the purpose herein described.
5. The method of providing the seating of a tap, cock, or similar valve with
an enamelled face, which consists in grooving said seating, in forming a ring

page_text: of enamel to fit said seating, and in securing said ring in such seating by cement
or packing, substantially as and for the purpose herein described.
6. The method of providing the seating of a tap, cock, or similar valve with
an enamelled face, which consists in constituting such seating removable from
the body of the tap, in providing such seating with an enamelled face apart
from the tap, and in then securing the seating within the tap, substantially as
and for the purpose herein described.
Dated this 18th day of October
J. A. COUBROUGH,
Chartered Patent Agent, 10, St. George's Crescent, Liverpool,
Agent for the Applicant.