Improvements in Cocks or Taps.
Year: 1893

page_text: Date of Application, 25th July, 1893
Complete Specification Left, 25th Apr., 1894-Accepted, 25th May, 1894
PROVISIONAL SPECIFICATION.
Improvements in Cocks or Taps.
We, WALTER ROBERT DAVIES of 131, Borough Road, Birkenhead in the-
County of Chester and FREDERICK CROOK of 158 Argyle Street South,
Birkenhead aforesaid, Builder and Plumber respectively do hereby declare the
nature of this invention to be as follows:-
Our invention is to provide means for remedying the objectionable leakage of
cocks or taps. This leakage we believe arises from the seating or surface on to
which the plug of the cock or tap bears or takes, becoming pitted with little holes.
or worn away from different causes, partly from small matters passing along with
the water through the tap and becoming ground down on to the seating or surface
when the plug is screwed or twisted down.
Now our invention consists in making the aforesaid bearing or surface loose or
removable so that when it becomes pitted or worn away it can easily be taken out.
of the cock or tap and replaced.
Our invention may be carried out by providing the ordinary bearing or surface.
for the plug with a screw thread and fitting therein a suitable washer, also with a
screw thread, on to which washer the plug of the cock or valve would take.
It will be seen that it will be the surface of the washer which would become
pitted or worn away and when such is the case it is an easy matter to twist out or
unscrew this washer and replace it with another, the surface of which would be
quite level and water-tight.
Dated thig 24th day of July 1893.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Cocks or Taps.
We, WALTER ROBERT DAVIES of 131 Borough Road, Birkenhead in the
County of Chester, and FREDERICK CROOK of 158 Argyle Street South,
Birkenhead aforesaid, Builder and Plumber respectively, 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 :-
Our invention is to provide means for remedying the objectionable leakage of
cocks or taps. This leakage we believe arises from the seating or surface onto
which the plug of the cock or tap bears or takes, becoming pitted with little holes
or worn away from different causes, partly from small matters passing along with
the water through the tap and becoming ground down onto the seating or surface
when the plug is screwed or twisted down.
Now our invention consists in making the aforesaid bearing or surface loose or
removable so that when it becomes pitted or worn away, it can easily be taken
out of the cock or tap and replaced.
Our invention may be carried out by providing the ordinary bearing or surface
for the plug with a screw thread and fitting therein a suitable washer, also with a
screw thread, onto which washer the plug of the cock or valve would take.

page_text: The invention will be best understood by referring to the accompanying drawing,
in which,
Figure 1 is an elevation partly in section of an ordinary screw down valve or
cock constructed according to our invention.
Figure 2 a plan of the washer which forms the valve seating and
Figure 3 a view of a key suitable for removing or inserting the washer.
In these, A is the valve or cock and B the washer or valve seating, preferably
screwed into position and formed square on the inside to receive the square end of
key C by means of which the said washer can be removed and another one (or
the same one faced up) inserted.
It will be seen that it will be the surface of the washer which would become
pitted or worn away and when such is the case, it is an easy matter to twist out or
unscrew this washer and replace it with another, the surface of which would be
quite level and watertight.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:-
The improvements in cocks or valves of the kind described, which consist in
making the valve seating a separate part and in constructing and arranging the
said seating in such manner that the same can be readily removed or inserted
substantially as and for the purposes set forth.
CA
11001
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester, Nottingham, and London, Patent Agents.