Improvements in Full Way Valves or Stop Cocks.
Year: 1891

page_text: Date of Application, 16th Apr., 1891
Complete Specification Left, 14th Jan., 1892-Accepted, 27th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Full Way Valves or Stop Cocks.
I, WILLIAM HARTCLIFFE of the firm of Hartcliffe and Malkin of the St. Simon
Street Brass and Copper Works, Salford, in the County of Lancaster, Engineers,
do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in what are known as full way valves or
stop cocks and it is particularly applicable to the invention for which Letters
Patent No. 5108 were granted to me and to William Henry Malkin on the
6th April 1888 and the chief object of my invention is to improve the means for
pressing the two parallel valve facings against their seatings in order to make a
good joint.
In constructing a valve of the type described I propose to form a bridle or
loop at the foot of the screwed spindle, in this bridle are fitted two blocks with
tapered edges which preferably project beyond the sides of the bridle, each disc
or valve face has on its inner side two reverse taper surfaces which when in
position lie upon the taper edges of the blocks and a spring placed between the
blocks tends to keep the valve faces to their seatings. In order to give a
positive and adjustable pressure to the valve faces upon their seatings 1 fit a loose
wedge piece or its equivalent in a recess formed by projections on the ed es of
the valve faces or discs on each side of the bridle and fit or cast two lugs or
projections at the bottom of the valve casing so that when the spindle is turned
far enough the bases of the wedge pieces come against the lugs whereby the
valve faces or discs are forced outward against their seatings.
In place of two wedge pieces and lugs a single lug or stop piece could be
employed to put an expanding pressure on the valve faces the arrangement
depending upon the construction of the valve.
1001
H. B. BARLOW,
Patent Office, No. 4, Mansfield Chambers, St. Ann's Square, Manchester,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Full Way Valves or Stop Cooks.
I, WILLIAM HARTCLIFFE, of the firm of Hartcliffe and Malkin, of the St. Simon
Street Brass and Copper Works, Salford, in the County of Lancaster, Engineers,
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:-
way
My invention relates to improvements in what are known as full
valves or
stop cocks and it is particularly applicable to the invention for which Letters
Patent No. 5108 were granted to me and to William Henry Malkin on the
6th April 1888 and the chief object of my invention is to improve the means for
pressing the two parallel valve facings against their seatings in order to make a
good joint.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying sheet of drawings reference being had to the
figures and letters marked thereon.
Figures 1, 2 and 3 are sectional elevations of a full way valve or stop cock made
according to my present improvements.

page_text: Fig. 4 is a plan of the discs or valve faces with the parts for keeping them
against their seatings.
Fig. 5 shows three views of one of the valve discs.
Fig. 6 three views of one of the blocks with tapered edges and
Fig. 7 two views of one of the wedge pieces.
In Figs. 1, 2 and 3-a designates the valve casing, the screwed spindle, which
is raised or lowered by means of the mut e, spindle d' and handle or wheel d.
"
I form a bridle or loop at the foot of the screwed spindle b, and in this bridle e
are fitted two blocks (see Fig. 6) with tapered edges which preferably project
beyond the sides of the bridle; each disc or valve face (see Fig. 5) has on its
inner side two reverse taper surfaces which when in position lie upon the taper
edges of the blocks; and a spring placed between the blocks tends to keep
the valve faces g to their seatings a¹ in the casing a.
In order to give a positive and adjustable pressure to the valve faces 9 upon their
seatings a fit a loose wedge piecei (see Fig. 7) or its equivalent in a recess
formed by projections " on the edges of the valve discs on each side of the
bridle e; and fit or cast two lugs or projections ; at the bottom of the valve
casing a, so that, when the spindle is screwed down far enough, the bases of the
wedge pieces i come against the lugs j, whereby the valve faces on the discs 7 are
forced outward against their seatings a'.
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 combination with the screwed spindle, and the bridle or loop e, of the
blocks, the spring valve discs g wedge picces i and lugs or their equivalents all
arranged and operating substantially in the manner and for the purposes herein set
forth.
2. The general construction and combination of parts embodying my improve-
ments in full way valves or stop cocks substantially as herein described and as
illustrated by the accompanying drawing.
Dated this 12th day of January 1892.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicant.