Improved Valve and Seating for Screw Down Taps.
Year: 1891

page_text: Date of Application, 6th Mar., 1891
Complete Specification Left, 7th Dec., 1891--Accepted, 6th Feb., 1892
PROVISIONAL SPECIFICATION.
Improved Valve and Seating for Screw Down Taps.
I, FREDERICK ROTHWELL, of 5 College Terrace, Burrard Road, West
Hampstead, Middlesex, Organ Builder, do hereby declare the nature of this
invention to be as follows:-
This invention has for object, to construct valves for screw down taps with an
annular ring or washer of rubber, or other material in order that liquid say,
water may not only flow around the valve in the ordinary manner, but through
the centre thereof. For this purpose, I make a bridge, in the annular under
face of which, I form a dovetail, or other groove for the reception of the rubber,
or other ring, or washer, said ring having a portion projecting beyond the face
of the bridge as to be clear of it.
The bridge has a central aperture and an eye above connected to the base
by radial webs or arms, said eye being so shaped that it can be loosely affixed
to the screw down stem for a straight up and down motion when the handle is
turned.
The rubber, or other ring or washer is of such a width that it bears upon
two faced up ring seatings, one of which is formed in the ordinary manner on a
partition in the water way, and the other on a post centrally situated in the water
way, and around which the water has full play, an annular passage being thus
formed between the two seatings.
Dated this 6th day of March 1801
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Frederick Rothwell.
(
COMPLETE SPECIFICATION.
Improved Valve and Seating for Screw Down Taps.
I, FREDERICK ROTHWELL, of 5 College Terrace, Burrard Road, West
Hampstead, Middlesex, Organ Builder, 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 object, to construct valves for screw down taps with an
annular ring or washer of rubber or other material, in order that liquid (say, water)
may not only flow around the valve in the ordinary manner but through the centre
thereof.
My invention will be clearly understood by the annexed drawings, Figures 1
and 2 being a vertical longitudinal and a horizontal longitudinal section respectively
of a screw down tap with my ring valve and double seating. A is a bridge in the
annular under face of which I form a dovetail, or other groove for the reception of
the rubber, or other ring, or washer B, said ring having a portion projecting
beyond the face of the bridge A as to be clear of it.
The bridge A has a central aperture C and an eye D above connected to the
base by radial webs or arms, or said webs may be dispensed with, the eye being so
shaped that it can be loosely affixed to the screw down stem E for a straight up
and down motion in the socket cap F when the handle G is turned.
The rubber or other ring or washer B is of such a width that it bears upon two
faced up ring seatings H, I, one of which I is formed in the ordinary manner on a
Price 811

page_text: partition J in the water way, and the other on a post K centrally situated in the
water way, and around which the water has full play, an annular passage being
thus formed between the two seatings, as seen more particularly at Figure 2.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. The improvements in screw down taps consisting of two ring seatings for a
single ring valve which is loosely fitted and having a bearing action independent of
the screw down stem, as described.
2. The construction of a screw down tap with a fixed post in body having a ring
seating at top for use in conjunction with a ring shaped partition, on both of which
a ring washer or valve has a bearing for closing the passage, as shown by the
annexed drawings.
Ine on day of December 1831.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Frederick Rothwell.