Rotary Disc Valve bib or otherwise for Steam, Water, Liquids, and Fluids
Year: 1897

page_text: WILLIAM DUTHIE CRABB, 54, Maud Road, Plaistow, Essex, do hereby declare
the nature of this invention to be as follows:-
Rotary Disc Valve bib or otherwise for Steam, Water, Liquids, and Fluids
the Valve consists of a Disc with Slot or otherwise, with or attached to a spindle,
and pressed by the Fluids against a combination Seating of Indiaruber Com-
pound or Fibre or Compounds of Mineral or Vegetable Washer or Flange with
coresponding Slot or otherwise as Disc for the passage of fluids an for fixing
body flanges or faces of Valve, it is Rotated on and off, by a crutch or lever
handle, attatched to the spindle which passes through a hole in the Seating, and
hole or tube through the outlet side of Body Casting of Valve, with this kind of
Valve no stuffing box is required and can be worked right or left in the same
way as a plug cock without concussion from pipes.
WILLIAM DUTHIE CRABB,
54, Maud Road, Plaistow, in Essex.
WILLIAM DUTHIE CRABB, 54, Maud Road, Plaistow, Essex, Sanitary and
Domestic 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 relates to improvements in Rotary Disc Valves Bib or other-
wise for Steam water Liquids and Fluids Generally.
The Valve consists of a disc with aperture or apertures, notch or notches, with
or attached to a spindle, and is pressed by a Perforated Spring washer and the
fluids against a combination Seating of Indiarubber compound, or Fibre or com-
pounds of Mineral or Vegetable washer or flange fitted to partition of outlet body
casting with corresponding aperture or apertures slot or otherwise as disc for the
passage of fluids and hole for spindle and screw holes for connecting the two
body flanges of castings or faces of Valve.
It is Rotated and controls the passage of fluids generally by a crutch lever or
other handle attached to the spindle which passes through a hole in the Seating
and hole in partition and trunk of outlet body casting and Separated from and
having no communication with the water way out let of Valve with this kind of
Valve no stuffing box is required.

page_text: It is worked in the same way as a ground in plug cock without any concussion
from pipes and turns very easily under great pressure.
The accompanying drawings illustrates some of the arrangements to which
Valves constructed according to my invention are applicable and further illus-
trates the manner in which I prefer to carry my invention into effect.
Fig. 1 is an elevation Fig. 2 a plan, is a view of the metal disc and Valve
spindle detached, constructed according to my invention a is the flat metal disc
cast in a piece with or attached to the spindle 6 having aperture or apertures as
shown at c.
Fig. 3 is a plan of combination seating with aperture or apertures like those of
the disc and holes for spindle and Screws.
a is the combination seating.
61 is the hole for spindle of Valve.
c is the aperture as metal disc.
Fig. 4 is a plan of metal perforated spring washer fixed into rabbit of inlet
body casting and fitted onto inlet end of spindle of disc.
Fig. 5 illustrates this form of Valve applied to a front action bib Valve.
a is the metal disc.
b is the spindle.
c is the aperture in metal disc.
a is the combination seating.
61 is the hole for spindle of Valve.
c is the aperture as metal disc.
c2 is the aperture in partition of outlet body casting.
d is the inlet body casting.
e is the outlet body casting.
f is the perforated spring washer fixed to rabbit of inlet body casting.
The invention thus illustrated by the drawings requires no further description
except to state that although I have shown the Valve applied to one purpose
yet I do not limit the invention to only this purpose.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that
I claim as my aforesaid improvements in Rotary Disc Valves for controling the
passage of steam water and Liquids and fluids in general and gas.
First the construction and imployment of a disc Valve a wherein there is
formed an aperture or apertures or notch or notches c and the said Valve being
made in a piece with or attached to a spindle corresponding with seating a¹
and aperture in outlet body casting.
Second the construction and employment of a combination seating a¹ wherein
there is formed an aperture or apertures corresponding with the aperture or
apertures, notch or notches of Valve a with hole for spindle and screw holes for
fixing body flanges of Valve and where by the disc Valve a is pressed by the
fluids and spring washer f against the combination seating a¹ which keeps it
firmley to the said seating all operating for the purpose set forth.
Third the application of such Valves as aforesaid to steam water and liquid
and fluid Valves generally and particularly with reference to the Valve and
arrangements described with reference to the accompanying drawings.