IMPROVEMENTS IN AND RELATING TO COCKS AND VALVEO
Year: 1879

page_text: LETTERS PATENT to Ellis Marsden, of Liverpool, in the County of Lancaster,
for the Invention of "IMPROVEMENTS IN AND RELATING TO COCKS AND
VALVEO"
PROVISIONAL SPECIFICATION left by the said Ellis Marsden at the Office
of the Commissioners of Patents on the 27th May 1879.
ELLIS MARSDEN, of Liverpool, in the County of Lancaster.
AND RELATING TO COCKS AND VALVES."
"IMPROVEMENTS IN
My Invention relates to certain improvements in cocks and valves, such as street
and other water cocks and valves, and steam cocks and valves, to stand high
pressure; and consists in the method of packing the glands of such cocks or valves,
and the formation of such cocks or valves; for example, a hollow plug cock con-
structed according to my Invention is provided with a screwed gland. Between
the gland and the collar of the plug of the cock I place three rings, two of brass or
like suitable metal, with an intermediate ring of leather. These rings encircle the
spindle of the plug, and can be screwed up to any desired pressure without affecting
materially the action of the cock, and without materially increasing the friction.
The branches of the cock are made plain without flanges with screwed internal
nuts. The pipes connected to the cock are made with upset edges so that they (the
pipes) can be attached to the cock by the screw nuts, and plumbers' joints can be
dispensed with.
My Invention is alike applicable to packing the spindles of and attaching pipes
to valves as well as cocks, and by its application repairs can be effected without
removing the cocks or valves, which can also be kept in order with much less cost
than those now in use.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Ellis Marsden in the Great Seal Patent Office on the 24th November
1879.
ELLIS MARSDEN, of Liverpool, in the County of Lancaster.
AND RELATING TO COCKS AND VALVES."
"IMPROVEMENTS IN
My Invention relates to certain improvements in cocks and valves, such as street
and other water cocks and valves, and steam cocks and valves, to stand high
pressure without binding; and consists in the method of forming and packing the
glands of such cocks and valves, and in the construction of such cocks or valves.
For example, a hollow plug cock for high pressure water purposes constructed
according to my Invention is provided with a screwed gland. Between the gland
and the collar of the plug of the cock I place three rings, two of brass or other
suitable metal, with an intermediate ring of leather or other suitable packing.
These rings encircle the spindle of the plug of the cock, and can be screwed up by
the gland to any desired pressure without materially affecting the easy turning or
action of the plug of the cock, and without materially increasing the friction. The
branches of the cock are made plain without flanges, and are provided with screwed
internal nuts or glands. The pipes to connect to the cock are made with upset
edges, so that they, the pipes, can be attached to the cock by the screw nuts, and
plumbers' joints can be dispensed with.
The beforegoing being the nature, object, and purposes of my Invention I will now
proceed to illustrate how my Invention may be practically applied, and to describe
a cock constructed according to my Invention, such as suitable for street water
purposes, reference being had to the annexed Sheet of Drawings which are marked
with letters and figures of reference, corresponding with those in the following
explanation, like letters being used to denote like parts throughout the various
views and Figures.
Figure 1 is a sectional elevation of a cock of the hollow plug type suitable for
street and other water purposes, constructed and fitted according to my Invention.
Figure 2 is an outside view of Figure 1.
Figures 3, 4, and 5 are perspective views of the antifriction ring packing according
to my Invention.
The cock illustrated is a through way hollow plug cock. A is the barrel of the
cock; B is the plug with the through way C; D is a screwed gland, between which
and the collar B¹ of the plug B I place three rings; E, a metal ring; F, a leather or
like packing ring; H, a second metal ring. The utility of the metal rings E and H
is to prevent the plug B binding in the barrel A. of the cock, and at the same time
to ensure a tight joint in the gland. The rings are further shown at Figures 3, 4,
and 5, and are made to the taper of the cock and render it under pressure perfectly
tight without binding, so that it can be turned on and off with perfect ease. The
large barrel A of the cock with solid bottom and round waterway ensures the
complete turning off of the water and prevents leakage and waste.
It will be seen that the cock illustrated has plain ends K and J for jointing the
pipes L, M, which is effected by the screwed nuts N, P, which bear against the
upset ends of the pipes L, M, which effects great saving in time and material as no
plumbing is required.
My Invention is alike applicable to packing the spindles of and attaching pipes
to taps and valves as well as cocks. By its application repairs and repacking can
be effected without removing or displacing the cocks or valves, which can also be
kept in order with much less cost than those now in use.
What I claim as my Invention and secured to me by the hereinbefore in part
recited Letters Patent is,-
First. Constructing the glands and barrels of cocks, taps, or valves precisely in
the manner as herein set forth, and illustrated at Figure 1 of the accompanying
Drawings.

page_text: Second. Providing cocks or valves, such as shown in the accompanying Drawings,
with three packing rings, such as E, F, H, the rings E and H being of metal, and
the ring F being of leather or like material, as herein described and for the purpose
set forth.
Third. Constructing a cock precisely as herein described, and as shown at Figures
1 and 2 of the accompanying Drawings.
In witness whereof, I, the said Ellis Marsden, have hereunto set my hand
and seal, this Nineteenth day of November, in the year of our Lord One
thousand eight hundred and seventy nine.
ELLIS (L.S.) MARSDEN.