Improvements in Draw-off Taps for Baths and other Fittings.
Year: 1890

page_text: COMPLETE SPECIFICATION.
Improvements in Draw-off Taps for Baths and other Fittings.
I, SIDNEY JENNINGS of Palace Wharf Stangate, London, S.E.. Sanitary 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 thereof that is to say:-'
This invention relates to improvements in draw-off taps for baths and other fittings,
and has reference to that class of taps or cocks in which the valve, consisting of a
metal disc, is moved out of contact with its seat by means of a screwed spindle,
against the pressure of a spring, which spring closes it again upon the screwed spindle
being reversed. By means of my invention 1 construct a tap or cock which is simple
and efficient in its operation and does not easily get out of order, the working parts
are also easily accessible and may be removed with very little trouble. I prefer to
construct the body of the tap circular in shape and to screw into the upper part thereof
a guide piece, provided with a stuffing box and gland, into which guide piece screws
the spindle for operating the valve. An exit or mouth piece is also screwed into the
lower part of the said body so that it may be readily removed for inspecting or
removing the valve. The valve is supported and kept in contact with its seat by
means of a spring whose lower end rests in a recess formed in a cap screwed into the
lower part of the interior chamber of the tap. The valve, which is disc shaped, is
recessed to carry a ring of india-rubber, leather, or similar elastic material to form a
water tight face against its seating, and is recessed at its centre to permit of the entry
of a prolongation of the screwed spindle, by means of which the valve is forced
from its seat upon the spindle being screwed down, and guided in its
ascent.
And in order that my said invention may be more fully understood I will proceed
to described the same with reference to the accompanying sheet of illustrative
drawings in which Fig. 1 is a central vertical section of a tap according to my
invention, Fig. 2 is an elevation thereof. Fig. 3 is a horizontal section of the body
and inner chamber and Fig. 4 is a plan. Similar letters of reference refer to like
parts in all the views. a is the body of the tap and 6 is the inner chamber cast in one
therewith. c is the valve recessed for the insertion of a leather or india-rubbor ring d
which when the valve is closed bears against the seating b¹. e is the spindle for
operating the valve, and is provided with screw threads e and a prolongation e³
which latter enters a recess c¹ in the valve c and when the spindle is screwed down
forces the valve from its seat and also acts as a guide to the said valve. A coiled
spring bears against the under surface of the valve to keep it closed when the spindle
is screwed up out of contact therewith. The lower end of the spring rests in a recess
formed in a cap a screwed into the lower part of the chamber b. is the exit or
mouthpiece which is screwed into the lower part of the body a. i are rings or discs of
india-rubber or other elastic material for preventing leakage at the joints. The
spindle e screws into a guide piece k also screwed to the top of the body a the said
spindle passing through a stuffing box and screwed packing gland ". For the
purpose of examining or removing the valve c the exit h and the cap g are unscrewed
and removed and similarly the guide piece k may also be removed for examining the
upper part of the chamber 6 and valve c..

page_text: And having now described and ascertained the nature of my said invention
and explained the manner of carrying it into practical effect I declare that what I
claim is
The improvements in draw-off taps for baths and other fittings constructed,
arranged and operating substantially as described and illustrated in the accompanying
drawings.
.
Dated this
day of April 1890.
HUGHES, ELI & HUGHES,
76, Chancery Lane, London, W.C., Agents for the Applicant.