IMPROVEMENTS IN COCKS AND TAPS
Year: 1879

page_text: LETTERS PATENT to Edward Tiley Lambert, of Short Street, New Cut,
Lambeth, in the County of Surrey, for the Invention of "IMPROVEMENTS IN
COCKS AND TAPS."
Sealed the 19th December 1879, and dated the 10th July 1879.
PROVISIONAL SPECIFICATION left by the said Edward Tiley Lambert at
the Office of the Commissioners of Patents on the 10th July 1879.
EDWARD TILEY LAMBERT, of Short Street, New Cut, Lambeth, in the County of
Surrey. "IMPROVEMENTS IN COCKS AND TAPS."
This Invention has for its object improvements in cocks and taps.
The shell or body of the cock or tap is formed of galvanized cast iron, and the
conical plug partly of brass, and partly of galvanized iron and other metal.
The cone of the plug is of brass; it is cast with the water way through it, and
immediately above the water way there is a large socket or hollow, the sides of
the plug in this part being only of sufficient thickness for strength and durability
in wear.
The handle of the plug is of galvanized iron; it is provided with a flange which
fits as a cover on to the cavity within the cone of the plug, and also has a pro-
jection or tail piece entering the cavity, and having lugs upon it. Holes are bored
through the flange in a vertical direction, and there are also holes in the sides of
the cone at the upper part. The tail piece on the handle is inserted into the cavity
in the conical plug and melted; white metal or other soft metal is poured in
through the holes formed through the flange of the handle. The metal Hows into
the cavity in the plug, and sets round the tail piece on the handle and round the
lugs upon it. The metal also sets in the holes in the handle, and in the holes
formed through the sides of the socket or cavity in the plug. By this method of
construction a very efficient, cheap, and strong cock or tap is obtained.

page_text: -SPECIFICATION-in-pursuance of-the-conditions of the Letters Patent filed by
the said Edward Tiley Lambert-in the Great Seal Patent Office on the 9th
January 1880.
EDWARD TILEY LAMBERT, of Short Street, New Cut, Lambeth, in the County of
Surrey. "IMPROVEMENTS IN COCKS AND TAPS."
This Invention has for its object improvements in cocks and taps.
The shell or body of the cock or tap is formed of galvanized cast iron; and the
conical plug partly of brass, and partly of galvanized iron and other metal.
The cone of the plug is of brass; it is cast with the water way through it, and
immediately above the water way there is a large socket or hollow, the sides of
the plug in this part being only of sufficient thickness for strength and durability
in wear.
The handle of the plug is of galvanized iron; it may be provided with a flange
which fits as a cover on to the cavity within the cone of the plug, and also has a
projection or tail piece entering the cavity, and having lugs upon it.
Holes are
bored through the flange in a vertical direction, and there are also holes in the
sides of the cone at the upper part. The tail piece on the handle is inserted into
the cavity in the conical plug, and melted white metal or other soft metal is poured
in through the holes formed through the flange of the handle. The metal flows
into the cavity in the plug and sets round the tail piece on the handle, and
round the lugs upon it. The metal also sets in the holes in the handle, and
in the holes formed through the sides of the socket or cavity in the plug. By
this method of construction a very efficient, cheap, and strong cock or tap is
obtained.
In the Drawings hereunto annexed I have shewn two examples of cocks or taps
constructed according to my Invention.
Figure 1 is a longitudinal section of one of the cocks or taps; Figures 2 shew
separate views of its plug; and Figures 3, separate views of the handle to be
secured to the plug.
A is the shell or body formed of cast iron and galvanized; B is the plug cast in
brass and formed with a large socket or cavity B' immediately above the water
way; C is the handle of galvanized iron; C' is a flange on this handle to act as a
cover to the socket B₁ of the plug; C is a projection beyond the flange to enter
into the socket B¹; C³ are holes passing through the flange C¹; and B² are holes
in the sides of the socket B¹; D is a filling of soft metal cast into the socket B¹
through the holes C³ in the flange C¹ of the handle. This filling of soft metal
-surrounds-the-projection-C2-of-the-handle, and also fills the holes B in the sides of
the socket B', and so attaches the handle securely to the plug.
A modified construction of the tap or cock is shewn at Figure 4. This cock
differs only from the one shewn at Figure 1 in that the handle is not formed with
a flange to act as a cover to the socket of the plug.
A is the shell or body; B, the plug; B', the socket or cavity formed in the plug;
and B2, holes formed in the side of the cavity; C is the handle; and C2, its stem or
projection which is to enter the cavity B'; D is the filling of soft metal by which
the handle is secured to the plug.
At Figures 5, 6, 7, and 8 I have shewn various views of the mould used for
enclosing the plug and handle when the filling D of soft metal is cast into the
cavity of the plug. Figure 5 shews a vertical section of the lower part of the mould,
which is in one piece, and is formed with a cavity to receive and hold the plug, as
shewn. The upper part of the mould is in two parts; cavities are formed in the
abutting faces of the two parts for the upper part of the handle to lie in, and also
to allow of soft metal being poured into the cavity of the plug, The cavities in the
upper parts of the mould are also formed so that a portion of the stem of the handle

page_text: where it stands out from the cavity in the plug may be surrounded by the soft
metal,
The face of one of the two upper parts of the mould has pins projecting from it to
enter corresponding holes in the face of the other part; holes are also formed in the
bottom of each upper part of the mould for pins, which stand up from the bottom
part of the mould to enter. A plan view of the mould with the plug and handle
within it is shewn at Figure 8. This Figure shews clearly the opening by which
melted metal is to be poured into the mould. A somewhat similar mould to that
shewn at Figures 5, 6, 7, and may also be used for holding the plug and handle
of the tap shewn at Figure 1 at the time when soft metal is to be poured into the
cavity of the plug to secure the plug and handle to one another.
Having thus described the nature of my Invention, and the manner of per-
forming the same, I would have it understood that I claim,-
First. The construction of cocks and taps with the body or shell and the handle
of galvanized cast iron, and the plug of brass, and with the handle secured to the
plug, substantially in the manner herein before described.
Second. Forming the plug with a cavity or socket immediately above the water
way which is formed thorough it to reduce the amount of metal required for
forming the conical portion of the plug, and to allow of the handle being secured to
the plug by soft metal cast into the cavity or socket, substantially as described.
In witness whereof, I, the said Edward Tiley Lambert, have hereunto set my
hand and seal, this Ninth day of January, in the year of our Lord One
thousand eight hundred and eighty.
EDWARD TILEY LAMBERT. (L.S.)