Improvements in Taps or Cocks.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Taps or Cocks.
We, WILLIAM THOMAS SUGG, of Vincent Works, Regency Street, Westminster,
Engineer, and WILLIAM GEORGE HERBERT MATTOCK, of 8 Dartmouth Terrace,
Forest Hill, London, S.E., Foreman, do hereby declare the nature of this inven-
tion to be as follows;-
This invention relates to that class of plug taps or cocks, whether for gas or water,
in which a "knighting" pin is employed to arrest the movement of the plug
beyond certain limits, the object of the invention being to do away with the
knighting" pin, and thus give the cock a longer life; to prevent tampering with
the cock, when it is set in any given position, say, for example, when the main
cock of a penny-in-the-slot meter is turned off, because the suite of apartments to
which the meter belongs are unoccupied, and the gas supply is consequently dis-
connected; and otherwise to improve plug taps or cocks.
In carrying out this invention, the plug, at its neck, is formed with parallel
sides for a short distance down, to permit of the plug being drawn down into its
socket, as it wears away, and so be kept always tight, thus giving the tap or cock
a longer life.
The plug has an extension piece which projects beyond the barrel, and one part
of this extension is formed square, another part round, and threaded, while a third
part is, say, triangular, for a purpose to be presently explained.
The lower edge of the barrel is faced and a stop pin is inserted in the faced
edge.
Upon the square part of the extension is mounted a notched washer, of a
diameter equal to that of the faced portion of the barrel, the notch being of the
requisite length, to allow the plug to turn to open or close the passage in the usual
way.
The threaded round part receives a nut by which the parts are secured together,
and this nut is recessed on its outer face, so as to leave a space round the triangular
part, which is to be filled with sealing-wax, and sealed with a special seal, to pre-
vent tampering with the plug.
To fix the plug in either the open or closed position, for any purpose, we pro-
vide in the washer, opposite to the main notch, a second notch the exact size of
the stop pin, so that by breaking the seal of the nut, removing the washer, turning
the plug to the open or closed position, replacing the washer with the smaller
notch round the pin (or, it may be, a pin in the washer entering a hole in the
barrel), and then screwing on the nut and sealing it, the surreptitious burning of
the gas, when turned off, by the removal or other manipulation of the cock, will
be_prevented.
In some cases, we may retain the knighting pin, which may be arranged to fit
into a notch, and the plug will then be sealed, as before explained.
Dated this 12th day of February 1897.
NEWTON & SON,
Agents for the Applicants.

page_text: provements in caps or Cocks.
We, WILLIAM THOMAS SUGG, Engineer, of Vincent Works, Regency Street,
Westminster, and WILLIAM GEORGE HERBERT MATTOCK, Foreman, of. 8 Dartmouth
Terrace, Forest Hill, London, S.E., 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:-
This invention relates to plug taps or cocks, whether for gas or water, in which
a "knighting" pin is employed to arrest the movement of the plug beyond certain
limits.
The "knighting" pin is placed at the upper part of the plug and works in a
recess cut in the top edge of the barrel of the tap. The result is, that should the
plug wear loose in the barrel, it is impossible to tighten it by drawing it down into
the barrel, because the "knighting pin prevents it, and the tap or cock thus
becomes useless.
Now the object of the present invention is to give the tap or cock a longer life,
by dispensing with the "knighting" pin, which will permit of the plug being
tightened up as and when requred; also to prevent tampering with the tap or cock
when it is set in any given position; and otherwise to impove this class of taps
and cocks.
It may, however, be here remarked, that the invention may in some respects
also be applied to a knighting pin, tap, or cock.
In the accompanying drawings,
Fig. 1 is a side elevation of a cock.
Fig. 2 is a bottom view of barrel and plug; and
Fig. 3 is an elevation of the plug, taken at right angles to Fig. 1.
Figs. 4 and 5 are respectively side view and bottom view, shewing a modifica-
tion; and
Figs. and 7 show an ordinary "knighting" pin cock with the invention
applied thereto.
A is the barrel, and B the plug, in all the figures, and the lower edge of the
barrel is faced. In one arrangement, a pin a is inserted in the faced end to act
as a stop pin (see Figs. 1 & 2).
The plug B, at its neck, is formed with a cylindrical portion b, and the usual taper
portion_c. The object of the cylindrical portion is to permit of the plug being
drawn down into its, socket, as it becomes loose through wear and so be kept always
tight. In this way, the tap or cock will last much longer than when the old form
of cock with "knighting" pin is used.
The plug B has an extension piece which projects beyond the barrel A, and one
part of this extension is formed square (see Fig. 3); another part e is round and
threaded; while a third part f is, say, triangular, for a purpose to be presently
explained.
:
Upon the square part d of the extension, is mounted ja washer C; of a diameter
equal to that of the faced end of the barrel A, and this washer has a notch g to receive
the pin a, which notch is of the requisite length to allow the washer to travel, so
as to open or close the passage through the plug in the usual way, by turning, the
plug a half, a quarter, or any other portion of a turn.
The threaded round part e receives a nut D by which the parts are secured
together. This nut I) is recessed at h, Fig. 3, so as to leave a space round the
triangular part f, and this recess is to be filled with sealing wax or other suitable
material, and sealed with a special seal, to prevent tampering with the plug.
We also provide in the washer C, opposite to the main notch g, a second notch

page_text: or hole i, a trifle larger than the stop pin a. To fix the plug in the closed position
from the open position, it is only necessary to unscrew the nut D, remove the
washer C, turn the plug B to the desired position, replace the washer C with the
notch or hole i round the pin a, and then screw on the nut D again and seal it.
The surreptitious burning of the gas, after it has been turned or cut off by the
Company, for any purpose, by the subsequent manipulation of the cock, will thus
be prevented.
In Figs. 4 and 5, the stop pin a is placed in the washer C, and the main notch g
is made in the edge of the faced end of the barrel, the notch or hole i being made
in the faced part.
Although we have stated above that the object of our invention is to do away
with the "knighting" pin, still the invention may be more or less applied to taps
and cocks having the "knighting" pin.
"
Such an application is shown at Figs. 6 and 7. E represents the "knighting
pin, which will move in the notch g* made in the top edge of the barrel, as usual.
A locking notch * is also made in the top edge of the barrel. The plug B is pro-
vided, as before, with the parts d, e, and f, which respectively carry the washer C,
the nut D, and the sealing material.
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:-
1. The improvements in taps and cocks as herein shown and described, whereby
the "knighting" pin in the plug is dispensed with.
2. The means, as herein shown and described, for locking the plug of a tap or cock
in a certain position, for the purpose set forth.
3. A taper plug for taps and cocks, having a cylindrical portion at its upper
part, and an extension piece at its lower end, having a square portion, a cylindrical
threaded portion, and a triangular or other shaped portion, as herein shown and
described, and for the purpose set forth.
Dated this 11th day of November 1897.