IMPROVEMENTS IN VALVES FOR STEAM, WATER, AND OTHER LIQUIDS OB FLUIDS
Year: 1885

page_text: We, JOHN DAWSON, of Milnsbridge, near Huddersfield, Yorkshire, Gentleman,
and GEORGE AUGUSTUS SENIOR, of the Firm of G. A. Senior and Company, of
Milnsbridge, aforesaid, Brass Finishers do hereby declare the nature of our
invention for "IMPROVEMENTS IN VALVES FOR STEAM, WATER, AND OTHER LIQUIDS
OB FLUIDS," to be as follows:—
Our invention has reference to disc valves provided with openings for the
passage of steam, water, or other liquids or fluids.
One of these discs is made moveable so that when operated and the openings
are brought opposite each other, the steam, water, or other liquid or fluid is,
allowed a free passage.
Our invention consists in the means to be employed for operating the moveable
disc, and this we accomplish by fixing a handle or lever on the spindle of the
moveable disc in such manner that when moved either to the right or left, the
valve is easily opened and closed thereby; certain projections being employed to
determine how far the lever shall be moved in either direction when opening and
closing.
If the discs are made of metal the faces thereof are "ground" and forced against
each other by the pressure of steam or other fluids passing through the valve, and
also by a spiral spring placed on the spindle of the moveable disc.
This
Valves made according to our invention are simple in construction and cheap
in manufacture, besides being readily operated and certain in action.
construction of valve can also be fitted to the end of an open pipe, in which case
the valve cover would not be required, consequently the cost would be reduced.
When such valves are being used for water at high pressure, and it is thought
expedient to close the valve slowly, the spindle of the moveable disc may be
operated by worm and wheel instead of lever as stated.
J

page_text: COMPLETE SPECIFICATION.
Improvements in Valves for Steam, Water, and other Liquids
or Fluids.
We, JOHN DAWSON of Milnsbridge near Huddersfield, Yorkshire Gentleman,
and GEORGE AUGUSTUS SENIOR of the firm of G. A. Senior and Company of
Milnsbridge aforesaid, Brass Finishers do hereby declare the nature of our
invention for "IMPROVEMENTS IN VALVES FOR STEAM, WATER, AND OTHER LIQUIDS
OR FLUIDS," and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
Our invention has reference to disc valves provided with openings for the
passage of steam water, or other liquids or fluids."
One of these discs is made moveable so that when operated and the openings are
brought opposite each other, the steam, water, or other liquid or fluid is allowed
a free passage.
'
Our invention consists in the means to be employed for operating the moveable
disc, and this we accomplish by fixing a handle or lever on the spindle of the
moveable disc in such manner that when moved either to the right or left, the
valve is easily opened and closed thereby; certain projections being employed to
determine how far the lever shall be moved in either direction when opening and
closing.
If the discs are made of metal the faces thereof are "ground" and forced against
each other by the pressure of steam or other fluids passing through the valve, and
also by a spiral spring placed on the spindle of the moveable disc.
Such being the nature and object of our invention we will now proceed to
describe the same more fully and for that purpose make reference to the accom-
panying sheet of drawings, wherein Fig. 1 is elevation of a valve constructed
according to our invention, Fig. 2 is section of same showing valve closed, and
Fig. 3 is another section showing valve open.
A is the lower part and B the upper part of the valve covering the underside or
face a which forms the valve seating, whilst O is the rotary valve the face b. of
which is "ground" and made to fit the ground face a so as to be perfectly steam
and water tight. The loose valve C is recessed so as to receive one end of the stud
or spindle D which it will be observed is made with a projection or key c fitting
into a corresponding recess formed in the moveable valve, so that when the said
stud D is turned or moved around, the disc valve C will be made to move or
oscillate with it so as to open and close the valve. The stud D passes through the
flange E of the upper part of the valve casing and the said stud is made conical
at the part d so as to fit the opening made in the flange, and F is a hand lever
secured to the top of the stud by screw or other means for the purpose of operating
the stud and the disc valve..
In order that the face b of the disc valve may be kept in close contact with the
seating a spiral springs G and H are employed which will not only keep the valve
to its seating, but as the parts wear by frictional contact, the pressure of the
springs will continue to force the faces together.

page_text: Fig. 4 is an underside plan showing steam and water valve I partly open, Fig. 5
is a sectional plan showing that the hand lever F cannot be moved in either.
direction past the points e and f.
This construction of valve can be easily applied to the end of a pipe as shewn
at Fig. 6 in which case the lower part of the valve cover A would have to be
removed, whereby the cost of the valve is reduced to the value of part A.
Valves made according to our invention are simple in construction and cheap in
manufacture, besides being readily operated and certain in action.
When such valves are being used for water at high pressure, and it is thought
expedient to close the valve slowly, the spindle of the moveable disc may be
operated by worm and wheel instead of lever as stated.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that what
we claim is,
The construction of disc valves in the manner substantially as herein shown and
described, and operated by stud and hand lever as set forth, or their mechanical
equivalents.