improvements in cocks or valves
Year: 1895

page_text: Impi
HORACE EDWARD BALY of 31 Silent Street Ipswich in the County of Suffolk
Engineer do hereby declare the nature of my invention for improvements in cocks
or valves to be as follows:-
This invention relates to improvements in cocks or valves, for the purpose of
regulating or controlling the flow of steam, gas, or liquids, and more especially
relates to plug or taper cocks, having two, three or more ways, and consists in
having an extra hand wheel or lever for raising the plug slightly off its seat, in
order that it may be the more easily turned by the ordinary hand wheel.
This invention is carried out by a hand wheel or lever working on a thread, cut
on the stem, or spindle of the plug, this said wheel is held in position relative to the
shell of the cock, by one or more cross-pieces either cast, or bolted to the shell, or
stuffing-box cover, so that on turning this hand wheel slightly, one way or the other,
it will either release, or tighten the plug in its seat.
When the aforesaid hand wheel or lever has been used to slacken the plug, then
the ordinary hand wheel will turn it easily, after which the plug can be again
tightened by the aforesaid hand wheel sufficiently to prevent leakage.
Providing the plug is a workable fit, arrangements can be made, whereby both
hand wheels may be turned at one and the same time, and so used as an ordinary
cock.
Dated this 3rd day of September 1895.
партоѵетению 11 24437
I, HORACE EDWARD BALY, Engineer, of 4 Soane Street, Ipswich, late of
31 Silent Street, Ipswich, 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 relates to improvements in cocks or valves, for the purpose of
regulating or controlling the flow of steam, gas or liquids, and more especially
elates to plug or taper cocks having two, three or more ways, and consists in
providing means for lifting the plug from its scat axially, before being turned, in
order that it may be more easily manipulated, and to reduce friction and diminish
wear and tear, the same means also being used for lowering the plug into its seat
again, when the plug is partly or fully opened, and thus prevent grit and dirt from
getting between the plug and its seat.
In order that my invention can be better understood, I will describe the same
by reference to the accompanying drawings.
Figure 1 shows a sectional elevation of the complete cock, Figures 2, 4, 6 & 8
show sectional elevations of the new arrangements, with their respective plans
Figures 3. 5. 7 & 9.

page_text: Figures 10 & 12 with their respective plans Figures 11 & 13 show modifications
of the new arrangements.
In the above figures A is the shell, body or seating of the cock, B the conical
plug, C the stem or spindle of the plug, D the cover and stuffing box, E the gland
of stuffing box, F the cross-piece, either cast on the stuffing box cover, or shell
(Figure 2) or connected to it by stays F1 F1 (Figure 1), Ġ the hand whee! or
lever for raising the plug, and H the hand wheel or lever for turning or revolving
the plug.
In Figures 1 and 2 a screw thread or part of a thread C¹ is cut on the stem C
of the plug, a similar screw thread is cut in the wheel or lever G, fitting on the
screw C. The wheel or lever G is held in position by the cross-piece F, so that
it can revolve, but not work in a longitudinal position with respect to the
stem C, and is such that by turning this wheel or lever G, the stem C is
drawn up or forced down, depending upon the direction the wheel G is revolved.
In order that the aforesaid hand wheel G may operate the turning, as well as
the raising or lowering of the plug, I use adjustable pins II (Figures 1, 2 & 3)
in the wheel G, which are so adjusted, that when the wheel G has moved a
distance, in direction of arrow (Figure 3) sufficient for raising the plug, the pins I I
come in contact with the lever H, and thereby turn or revolve the plug, and as
soon as the plug revolves, no more vertical movement of the plug takes place.
When the plug has been revolved to its required position, the wheel G is then
revolved in an opposite direction, carrying the pins I. 1. with it, and leaving
the lever H in its required position, and so forces the plug B into its seat
again.
It can be readily followed that this arrangement can be fitted to three or more
way cocks.
Figure 4 with its plan Figure 5 is an arrangement in which a screw thread is
cut on the external part of the hand wheel G, and the internal part of the cross-
piece F. A collar K is fixed on the stem C, and fits in a recess in the wheel G,
with a cap L fixed on with screws, and is so arranged that when the wheel or
lever G is revolved, the plug is either raised or lowered only, and the revolving is
done by a separate wheel or lever H.
Figure 6 with its plan Figure 7 is a modification of Figures 1 and 2 whereby a
box spanner P or other lever may be used, and also a locking plate O, so
arranged that the spanner P, cannot be taken off the stem C until the plug is
properly closed or shut. When the stem C is a loose fit in the stuffing box, the
former is likely to turn back with the turning back of the wheel G, to prevent
this, (when necessary), I use a ratchet wheel H and pawl M, with spring N, both
the latter are attached to the stay F¹ or cross-piece F, so that the plug B can only
be revolved in one direction.
Figure 8 with its plan Figure 9 shows a combination spanner used for raising,
lowering and turning the plug, in which Q is a metal tube attached to the wheel
or lever G, and cut at its bottom end to fit a recess R cut in the flange of the
bush G, the latter bush G' acting on the stem C in the same
hand wheel G, Figures 1 & 2. The spanner P is used for revolving the plug
either separately or in combination with the wheel G and pins I, I.
manner as the
Figure 10 with its plan Figure 11 is a modification in which one or two
separate screws are used for raising or lowering the plug. On the stem C is
fixed a double flanged collar V, so that the stem C can revolve freely in the
cross-piece U, but cannot move longitudinally. A key X is fixed in the stern C,
and a slot Y is put in the bush G' of such a width, that on revolving the bush G₁
(in the direction of the arrow) the screws S S have raised the plug by means of
the levers TT & links W, W, before the key X. has been reached, when the key
is reached the plug is then turned at the same time, and the raising of the plug
continues until the dead centres of the levers T T are reached, when they return
to their normal position and force the plug into its seat again, by this time the
plug has been turned sufficiently to be full open.

page_text: In Figure 12 with its plan Figure 13, I use levers Z Z pivotted at Z¹ Z', with
teeth engaging in a circular rack V₁ pinned on the stem C, these levers are
worked to raise or lower the plug, by means of the slotted cam in bush G¹.
I use the same arrangement (viz. the key X. in the shaft & the slot in the bush G¹)
for turning the plug as in Figures 10 & 11.
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 :-
1st. An improved cock, whereby the plug can be raised from and returned
to its seat at any point of its revolution, independently of the means whereby
the aforesaid plug is rotated.
2nd. The combination whereby the plug of a cock can be raised from, revolved,
and lowered to its seat, by only one hand wheel, lever or spanner, being used by
the operator.
3rd. A plug cock substantially as described and represented by the annexed
drawings.
Dated the 30th day of May 1896.
HORACE EDWARD BALY.