Improvements in Means for Operating Disc and Valves.
Year: 1897

page_text: I, ALFRED FEATHERSTONE, General Manager to Messrs. C. & W. Walker, of Midland
Iron Works, Donnington, Newport, in the County of Salop, do hereby declare the
nature of my Invention to be as follows:-
The object of my Invention, is to provide simple means by which disc or like valves
can be quickly operated the same arrangement locking them in their open or shut
position.
1
According to my Invention the valve proper is carried on a spindle which has a
Ecrew engaging with a short length of screw in a sleeve on the outside of which sleeve
is a coarser screw in which engage studs or the like in the standard which guides and
supports the spindle. The end of this spindle is squared or equivalently formed to
receive a spanner or removeable key and the sleeve is provided with a wheel or the
like for rotating it.
When the valve is to be operated the spanner or key is applied to the spindle and
the valve moved, then the hand wheel is turned until the disc is. moved the full
amount allowed by the screw on the sleeve, then the disc is further moved by means
of the spanner or key on the spindle.
4.7
The valve is locked. in position and if the spanner or key is removed from the
spindle the valve cannot be moved off its seating by means of the hand-wheel.
A
1
1005
JOHNSONS & WILLCOX
47 Lincoln's Inn Fields London W.C. Agents.
COMPLETE SPECIFICATION.
Improvements in Means for Operating Disc and like Valves.
I, ALFRED FEATHERSTONE, General Manager to Messrs. C. & W. Walker, of
Midland Iron Works, Donnington, Newport, in the County of Salop, 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:-
The object of my Invention is to provide simple means by which disc valves, or
the like valves, can be operated in much less time than hitherto the same arrangement
locking them in either their open, or closed position.
I will describe my Invention with reference to the accompanying drawing.
Figure 1 shewing a section of a valve provided with an arrangement according to
my Invention and Figures 2 and 3 being a vertical section and a side elevation

page_text: respectively (drawn to a larger scale) of the mechanism constructed in accordance
with my Invention.
According to my Invention the valve proper A is carried on a spindle B, which has
a screw b engaging with a short length of screw in a sleeve C, on the outside of
which sleeve is a coarser screw C2, in which engage studs D, or the like, in the.
standard E which guides and supports the spindle and sleeve. The end of the
spindle B is squared or equivalently formed at 62, to receive a spanner, or removeable
key F and the sleeve C, has secured to it a wheel, or the like, G, for rotating
it.
When the valve is in its fully closed, or fully open, position it can be locked in
position by turning the spindle B, by means of the key, or spanner, F, so as to join
the thread on the said spindle forcibly against the thread in the sleeve C, and also
the thread on the sleeve against the studs D, and so prevent the valve from being
moved without first turning the spindle B, so as to relieve the pressure between the
threads.
When the valve A is to be opened or closed as the case may be the spanner or
key F, is applied to the squared, or equivalently formed, end 62, of the spindle B, and
the spindle B thereby turned to relieve the pressure from between the threads then
the hand wheel G can be turned and the valve be quickly moved to the extent,
allowed by the screw C2 on the sleeve C, and then the valve can be secured in
position by operating the screwed spindle B, as aforesaid.
The valve is thus locked in position and if the spanner, or key F, be removed from
the end b2 of the spindle B the valve cannot be moved by means of the hand
wheel.
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. For operating dise valves, or like valves, a screwed valve spindle engaging in an
internally screwed sleeve provided with an external screw of different pitch capable
of screwing in the standard, or its equivalent, substantially as, and for the purpose,
herein before described.
2. The means for operating disc valves, or like valves, consisting of the
arrangement and combination of parts hereinbefore described and shewn in the
accompanying drawings.
Dated this 14th day of October 1897.
JOHNSONS & WILLCOX
47 Lincoln's Inn Fields London W.C. Agents.