IMPROVEMENTS IN COCKS OR VALVES FOR REGULATING THE FLOW OF WATER OR OTHER FLUIDS, AND IN THE JOINTS OF PIPES THROUGH WHICH SUCH FLUIDS PASS
Year: 1882

page_text: PROVISIONAL SPECIFICATION left by Adolf Gutensohn at the Office of
the Commissioners of Patents on the 8th March 1882.
ADOLF GUTENSOHN of 40, Southampton Buildings in the County of Middlesex
"IMPROVEMENTS IN COCKS OR VALVES FOR REGULATING THE FLOW OF WATER OR
OTHER FLUIDS, AND IN THE JOINTS OF PIPES THROUGH WHICH SUCH FLUIDS
PASS
"
This invention relates first; to new or improved methods of constructing cocks
or valves by which the flow of water or other fluid through them can be regulated
or stopped as desired.
I take a case of metal or other suitable material and preferably cylindrical in
shape. One end of this case is closed but has a central aperture having a screwed
thread through which is passed a corresponding screwed spindle the outer end of
which is provided with a knob or button or other convenient handle by which it
can be turned round when desired. At the other end of the cylindrical case I
form a circular flange behind which is fitted a loose hollow nut having an internal
thread which can be screwed upon a corresponding thread upon the end of the
pipe through which the water or other fluid is to be supplied, the two being thus
drawn tightly together. Between the flange upon the end of the case as described
and the end of the pipe to which it is to be attached I, insert, inside the hollow
nut, with or without the intervention of a separate ring or washer, a disc of india
rubber or other sufficiently soft material having a central aperture by opening or
closing which the flow of the water or other fluid through the cock or valve.is
regulated.
The soft disc also forms a tight joint between the flange and the end of the pipe
when the nut is screwed up, the parts between which the disc is compressed being
preferably of the shape hereinafter described.
In order to regulate as desired the opening or closing of the central aperture in
the soft disc I attach to the inner end of the screwed spindle above described a
valve consisting of a hollow sphere or part of a sphere, or a hollow cone, which
when drawn against the disc with sufficient pressure will form a tight joint against
it; and in order to prevent the india rubber or other soft material of which the
disc is composed from being injured by the friction of the valve against it if the

page_text: latter were attached to the screwed spindle, I connect them in such manner that
the spindle can turn round in the valve without the latter turning with it. For
this purpose I form a collar upon the screwed spindle, at a short distance from
the inner end which is passed through an opening at the lower side of the valve
and this has screwed or otherwise fixed upon it a collar or spherical or other
washer, the upper part or cover of the valve being then fixed over it by soldering
or other means so as to be watertight. By this method of arrangement the spindle
can revolve freely without the valve which is however made to move to or from
the soft disc as the spindle is turned round, and the upper part of the hollow valve
being closed above the end of the spindle no leakage can take place round the
latter.
A suitable opening for the discharge of the fluid when the valve is open is made
in the cylindrical case between the nut and the end through which the spindle is
screwed and the latter may be titted with a leather or other soft ring or washer to
prevent any leakage through the hole in which it is screwed.
Instead of the spindle being screwed as described, it may be provided with a
lateral arin or projection passing through a corresponding longitudinal opening in
a tubular guide through which the spindle passes. The longitudinal opening is
provided with straight or inclined notches or recesses into which the arm can be
turned so as to retain the spindle in any desired position, the arrangement forming
a bayonet joint. Or, any other convenient method of operating the spindle may
be used.
In cases where it is required that the pipes through which water or other fluid
is passing should be readily and simply joined together so as to form a tight joint,
I use the following novel method of arrangement. I make the end of one of the
pipes with an external screwed thread which is screwed into a corresponding
internal thread in the end of the other pipe. A separate loose nut is first screwed
sufficiently far upon the end of the first pipe its outer part being of such length
and of such internal diameter as to fit over the end of the second pipe when the
nut is screwed down against the latter. The end of the second pipe is preferably
made bevilled or somewhat conical, and the internal angle of the nut has a recess
made semicircular or triangular in section so that when a ring of indiarubber or
other suitable material is fitted into it with or without the intervention of a
separate ring or washer and the nut is screwed up, the ring is compressed between
the end of the second pipe, and the recess in the nut, and it is also forced laterally
against the screwed side of the first pipe and the inner cylindrical side of the nut,
and in this way a perfectly tight joint is very readily and easily made. The
method of construction described may be applied to the connection between cocks
or valves of the kind first described and pipes, or between the ends of ordinary
pipes used for the passage of water or other fluids.