IMPROVEMENTS IN THE CONSTRUCTION OF VALVES & Cocks
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I JOHN SIBLEY BORLASE of Coed poeth near Wrexham in the County of
Denbigh Manager of the Halvans Dressing Company Limited do hereby declare
the nature of my invention for IMPROVEMENTS IN THE CONSTRUCTION OF VALVES
& Cocks, to be as follows, that is to say :-
This invention relates to Improvements in Valves and Cocks by which the
ordinary Taper plug usually employed is dispensed with and in place thereof is
used a plain flat Circular Valve which turns upon a simple flat seat in which seat
are drilled one or more small holes opposite to corresponding perforations in the
Valve in such a manner that when the Cylindrical Valve is turned round a certain
distance the communication between the holes in Valve and Valve seat is cut off.
In carrying out my invention I employ a flat circular Valve to which is attached
a spindle, which spindle projects through a suitably constructed gland and to
which the handle is fixed.
The bottom of this Valve is perforated with one or more holes which are in
communication with the inlet end of the Valve or Cock and also with the holes in
seat when they happen to be opposite.
The pressure of the fluid keeps the valve firmly pressed against the Valve face
thus ensuring its being kept tight and also tending to keep the faces accurately
ground to one another.
The holes in valve face are in communication with the outlet end of Valve or
Cock and when the holes in valve and seat coincide there is a free passage through.
Dated this 18th dev of Inne 1884
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page_text: COMPLETE SPECIFICATION.
I, JOHN SIBLEY BORLASE of Coed poeth near Wrexham in the County of
Denbigh Manager of the Halvans Dressing Company Limited, do hereby declare
the nature of my invention for IMPROVEMENTS IN THE CONSTRUCTION OF VALVES
& Cocks and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, that is to say :-
:-
This Invention relates to improvements in Valves and Cocks by which the
ordinary Taper plug usually employed is dispensed with and in place thereof is
used a plain flat Circular Valve which turns upon a simple flat seat in which seat
are drilled one or more small holes opposite to corresponding perforations in the
Valve in such a manner that when the Cylindrical Valve is turned round a certain
distance the communication between the holes in Valve and Valve seat is cut off.
In carrying out my invention I employ à flat circular Valve to which is attached
a spindle which spindle projects through a suitably constructed gland and to which
the handle is fixed.
The bottom of this Valve is perforated with one or more holes which are in
communication with the inlet end of the Valve or Cock and also with the holes in
seat when they happen to be opposite.
The pressure of the fluid keeps the Valve firmly pressed against the Valve face
thus ensuring its being kept tight and also tending to keep the faces accurately
ground to one another.
The holes in Valve face are in communication with the outlet end of Valve or
Cock and when the holes in Valve and seat coincide there is a free passage through.
But to make this Invention better understood I will proceed to describe
the same by reference to the accompanying Drawing in which Figure 1 is a
longitudinal section of a Gauge Glass Cock and Figure 2.a longitudinal section of
a Grease Cup and Lubricator with Valves of my improved type.
In Figure 1. A is the body of the Gauge Glass Cock. B is the flat disc valve
through which are drilled the holes E which holes in the position shewn coincide
with the holes F in Valve seating C. which seating may be renewed when required.
D is the recess into which is fitted the Gauge Glass.
The action is as follows.-In the position shewn in the Drawing the holes
coincide and there is an open passage from O through E & F to D but if
the handle be turned a certain distance the holes will not coincide and the
communication will be cut off.
In Figure 2. A is the Body of Lubricator B is the top Valve seating through
which are drilled the holes P¹ and P,
F is the bottom Valve and G the Valve seating. Through this valve are drilled
the hole J communicating through I with the oil Vessel Q and another hole R (not
shewn) passes straight from the oil Vessel through the Valve. K. M. are holes
through bottom valve seating communicating with L and O respectively.
The position of the holes in Top and bottom valves and seatings are so arranged
that no two are open together. When J coincides with M the oil flows by
condensation through I. J. M. and O to cylinder &c. When R coincides with Mit

page_text: flows direct through to O when R coincides with K the vessel is emptied and
when P and P¹ coincide the oil vessel can be filled.
These different positions are marked on top of B and pointer S can be moved to
each as required.
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 what
I claim is
1. The employment of a plain Circular Valve which turns upon a simple flat
seat and in which are drilled one or more holes opposite the corresponding
perforations in the Valve in such a manner that when the Cylindrical Valve is
turned round a certain distance the communication between the holes in Valve and
Valve seat is cut off.
2. The modification of the arrangement herein before described in its application.
to a Grease Cup and Lubricator as represented in Figure 2 of the accompanying
drawings.