Year: 1896

page_text: Date of Application, 17th Mar., 1896
Complete Specification Left, 17th Dec., 1896-Accepted, 6th Mar., 1897
I CHARLES HENZELL HOLGATE of Cardigan Villa, Headingley, Leeds in the
County of York, Mechanical Engineer, do hereby declare the nature of this
invention to be as follows:-
My invention refers to that class of valves known as straightway valves, that is
valves in which not only are the inlet and outlet openings in a straight line opposite
each other, but in which the valve when open is to one side of the inlet and outlet
openings, so that there is a straight way or passage for the fluid through the valve.
Such valves are usually provided with two valves hereinafter for the sake of
distinction referred to as valve discs, one to cover the inlet and the other the outlet
opening or seats; the two valve faces or seats being inclined towards each other,
so that when the two valve discs are moved to close the openings, they gradually
approach each other, until wher the faces are properly covered the two valve discs
are wedged tight between the two faces or seats.
In my invention one of the faces or seats preferably the inlet seat is formed
straight i.e. at right angles to the axial line through the inlet and outlet passages,
whilst the other is inclined. One of the valve discs preferably that covering the
"straight" face is connected or rather hinged by means of a lug to a pin passing
through a recess in the valve chamber; so that as the pin is rotated the valve disc
moves in one direction to cover the valve face, and in the other direction is drawn
away to open the passage. The second valve disc i.e. that intended for closing or
covering the outlet seat or passage is not attached either to the pin or to the first
valve disc except by means of a hemispherical or otherwise suitably shaped
projection on the back of the one valve disc fitting in a cusp or nearly hemispherical
or otherwise suitably shaped hollow on the back of the other valve disc. This
connection owing to the short space between the valve discs causes the second valve
disc to move towards and away from the corresponding valve face simultaneously
with the movement of the first valve disc in the same directions. Otherwise this
second valve disc is free to move independently, i.e. to rotate about its axis; and
this freedom ensures the slight rotation of the valve disc necessary to its being
kept tight.
Where the valves are of a somewhat larger size, the first mentioned valve disc
covering the straight face may be moved up and down by a screw arrangement,
instead of the pin and lug device previously described.
Dated this 16th day of March 1896
J. CLARK JEFFERSON,
30 Park Row, Leeds, Agent for Applicant.

page_text: 1 CHARLES HENZELL HOLGATE of Cardigan Villa Headingley Leeds in the
County of York Mechanical 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:-
My invention refers to that class of valves known as straightway valves, in
which not only are the inlet and outlet openings in a straight line opposite each
other, but in which the valve when open is to one side of the inlet and outlet
openings, so that there is a straight way or passage for the fluid through the valve.
Such valves are usually provided with two valves or covers, (as they will be
hereinafter termed, the word valve being retained to denote the whole combination).
One cover closes the inlet and the other the outlet opening; the two valve seats
being inclined towards each other, so that when the two covers are moved together
to close the openings, they gradually approach each other, until when the openings
are properly covered the two covers are wedged tight between the two valve
seats.
In my invention one of the seats is formed straight, i.e. at right angles to the
common axial line through the inlet and outlet passages, whilst the other is inclined.
One of the covers is connected or rather hinged by means of a lever to a spindle
passing through a recess in the valve chamber; so that as the spindle is rotated,
the cover moves in one direction to close the valve seat, and in the opposite
direction is drawn away to open the passage.
The other cover is not attached
either to the spindle or the first cover except by means of a projection on the one
cover fitting in a corresponding recess on the back of the other cover.
connection, owing to the short distance between the covers, causes the loose cover
to move with the other cover either towards or away from the valve seats.
Otherwise the loose cover is free to be rotated about its axis, and this freedom
ensures the slight rotation of the cover necessary to uniform wear and consequent
tightness of the valve.
This
In the case of moderate pressures it is only necessary that one of the passages
should be covered; and what has been termed a cover for the other seat may be
merely a wedge piece, and in this case the wedge piece may be made to bear
against bearing strips having an inclination corresponding to that of the seat which
they replace.
Either cover, or in the case just mentioned either the cover or the wedge piece
may be attached to the spindle. Either the seat on the inlet or that on the outlet
passage may be the one formed at right angles to the common axial line of the
passages.
My above mentioned improvements may also be used where the valve cover of
one of the valve seats is moved up and down by a screw arrangement.
And in order that my invention and the manner in which the same is to be
performed may be more readily and clearly understood, I have annexed hereto the
accompanying sheet of drawings in which :-
Fig. 1 is an end elevation, Fig. 2 a side elevation, and Fig. 3 a horizontal section
of a lever actuated valve constructed in accordance with my invention.
Fig. 4 is a vertical section, Fig. 5 an end elevation, and Fig. 6 a plan with the
cap removed of a screw actuated valve constructed according to my invention.
In Fig. 1 to 3 a is the valve casing, provided with inlet and outlet passages b.
One of the passages is formed with a valve seat c on the inner side, the plane of the
valve seat being at right angles to the common axial line of the passages b. The
inner end of the opposite passage is provided with an inclined face, or as shewn in

page_text: the drawing with inclined bearing strips d. These strips are made with their
bearing surface concentric with and forming part of a screw surface about the
spindle e. One of the covers, or as shewn in the drawing the wedge piece g
(replacing the cover for the inclined seat) is attached to a short lever, the boss
of the latter being keyed, or fitted in an equivalent manner on an enlarged part of
the spindle e, and so that whilst preventing any rotary movement of the lever with.
respect to the spindle, it allows a slight longitudinal movement of the one with.
respect to the other. The cover of the straight seat c is provided with a.
projection i, which fits loosely in a corresponding recess in the cover or wedge
piece g, so that whilst it compels the cover' to partake of the movement of the
wedge piece g caused by the rotation of the spindle e, the cover his loose about its.
own axis, and can thus be moved round so as to ensure uniform wear, which is
necessary to prevent the valve becoming leaky.
The above arrangement may be modified by attaching the cover to the lever f,
instead of the cover or wedge piece g.
In Figs. 4 to 6 a is the valve casing, provided with inlet and outlet passages b.
One of the passages is formed with a valve seat c on the inner end, the plane of the
seat being at right angles to the common axial line of the passages b. The inner
end of the opposite passage is provided with an inclined face, or as shewn in the
drawing with inclined bearing strips d. These strips are made with the plane of "
the hearing surfaces at right angles to the plane of the said common axial line and
the axis of the screw f. On the screw fis fitted a tapped cover or nut g, which is.
provided with an inclined bearing surface or inclined side wings bearing against
the strips d. The cover of the straight seat c is provided with a recess, in which
the projection i formed on the cover or nut g fits loosely; so that whilst the cover A
is compelled to partake of the motion of the cover or nut g caused by the
rotation of the screw, it is free to rotate about its own axis for the purpose above.
mentioned.
It will be evident that a rising screw may be employed instead of the longi-
tudinally, i.e. vertically stationary screw by attaching the cover or wedge.
piece g by means of a collar bearing or other suitable connection to the lower end
of the screw f
For moderate pressures I now prefer to make the passage closed by the cover of
the straight seat the inlet passage, though my improved valve may be used with
either the one or the other passage for the inlet.
The advantages of my invention are, that owing to the position of one of the-
seats at right angles to the common axial line of the passages, it can be more
readily got up again or repaired if required than an inclined seat; and that with
the loose connection between the two covers, the cover covering this seat can be
rotated about its axis, or if attached to the lever, the lever or the spindle carrying
it can be fitted so as to allow a slight horizontal movement, thus preventing a
twisting strain on the lever or cover, which would tend to unequal wear, so that
in either case the cover on the straight seat is kept tight, rendering it unnecessary
to make the cover of the inclined seat tight, and even allowing this cover to be
dispensed with and replaced by a mere wedge piece; so that practically only one.
seat need be properly got up in the first instance and kept good, reducing the cost
and weight without impairing the efficiency.
Having now particularly described and ascertained the nature of my said inven-.
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. Straightway valves characterized by having one valve seat at right angles to
the common axial line of the inlet and outlet passages, the opposite seat or opening
being inclined or provided with inclined bearing strips, and the corresponding
cover or wedge piece being connected with the cover for the straight seat merely
by a projection on the one fitting in a corresponding recess on the other, substantially
as and for the purposes herein set forth.

page_text: 2. Lever actuated straightway valves having one valve seat at right angles to
the common axial line of the inlet and outlet passages, the cover of said seat being
loosely connected to the cover or wedge piece of the opposite seat or opening
merely by a projection on the one fitting in a recess formed in the other, the said
cover or wedge piece being formed on or attached to a lever fitted to a spindle
placed with its axis parallel to the common axial line of the inlet and outlet
passages and bearing against the opposite inclined valve seat or inclined bearing
strips, the bearing surface between the cover and seat or wedge piece and bearing
strips being formed as part of a screw surface about the actuating spindle,
substantially as set forth.
3. Lever actuated straightway valves having one valve seat formed at right
angles to the common axial line of the inlet and outlet passages, the cover of said
seat being formed on or attached to a lever mounted ou a spindle placed parallel
to said common axial line, and a cover or wedge piece bearing against the opposite
inclined seat or inclined bearing strips, the bearing surface being formed as a screw
surface about said spindle, the loose cover or wedge piece being connected to the
attached cover merely by a projection on the one fitting a corresponding recess in
the other, substantially as set forth.
4. Screw actuated straightway valves having only one valve seat at right angles
to the common axial line of the inlet and outlet passages, the cover of said seat
being connected to a rising nut (or to a cover or wedge piece attached to a rising
screw) merely by a projection on the one fitting a corresponding recess formed in
the other, said nut, cover or wedge piece bearing against the opposite inclined
seat or inclined bearing strips, the bearing surface of the same being formed at
right angles to the plane of the axes of the inlet and outlet passages and the screw,
substantially as set forth.
Dated this 16th day of December 1896.
J. CLARK JEFFERSON,
30 Park Row, Leeds, Agent for Applicant..