IMPROVE- MENTS IN PIPE JOINTS
Year: 1880

page_text: LETTERS PATENT to Samuel Hackett Roberts, of 66, Coleman Street, in the
City of London, Land Agent and Surveyor, for an Invention of "IMPROVE-
MENTS IN PIPE JOINTS."
PROVISIONA SPECIFICATION left by the said Samuel Hackett Roberts at
the Offic of the Commissioners of Patents on the 16th January 1880.
SAMUEL HACKETT ROBERTS, of 66, Coleman Street, in the City of London, Land
Agent and Surveyor. "IMPROVEMENTS IN PIPE JOINTS."
My improvements relate to earthenware and other similar pipes used for sewage
and sanitary purposes, such as are made with plain ends and put together by
collars or sleeves, as distinguished from those upon the spigot and faucet principle,
and they consist in forming or moulding upon the ends of such pipes, after they are
made and burnt, conical shaped nozels or rings made of a mixture of powdered
burnt clay, bitumen, and sulphur (or any similar or suitable composition), and a
corresponding conical shaped ring or lining within the collar or sleeve. These
nozels, rings, and linings are intended to be true-fitting and to make up for the
inevitable irregularities of burnt earthenware pipes. The joints are made by
placing the pipe ends (forming one perfect ring-cone) together, and then bringing
the sleeve or collar over the joint in a manner that will be readily understood by
persons accustomed to the laying of pipes.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel Hackett Roberts in the Great Seal Patent Office on the 16th
July 1880.
SAMUEL HACKETT ROBERTS, of 66, Coleman Street, in the City of London, Land
Agent and Surveyor. "IMPROVEMENTS IN PIPE-JOINTS."
My Invention relates to improvements in earthenware and other similar pipes
used for sewage and sanitary purposes, and such as are made with plain ends and
put together by collars or sleeves, as distinguished from those made upon the spigot
and faucet principle. These improvements consist in forming or moulding upon the
ends of the aforesaid pipes, after they are made and burnt, conical shaped nozels or
rings composed of a mixture of powdered burnt clay, bitumen, and sulphur (or any
similar and suitable composition), and a corresponding conical shaped ring or
lining within the collar or sleeve. These nozels, rings, or linings are moulded by
steel dies and are intended to be true fitting, and to make up for the inevitable
irregularities of burnt earthenware pipes. The joints are made by placing the
pipe-ends (forming one complete ring-cone) together, and then bringing the sleeve
or collar, which can be tightened to any required degree, over the joint in a manner
easily accomplished by persons accustomed to the laying of pipes.
For the better explanation and illustration of my said Invention I refer to the
accompanying Drawings.
Figure I. shows a side-view of the pipe-joint; Figure 2 is a sectional view of the
loose collar; Figure 3 is a sectional view of the complete joint.
A (Figure I.) represents the pipe; B (in said Figure) is the conical shaped ring
attached to said pipe; C (Figure 2) is the corresponding conical shaped ring formed
within the collar; D is a section of the collar.
Having thus fully described the said Invention, I claim the addition to the
hereinbefore described description of earthenware and other similar pipes used for
sewage and sanitary purposes of the combination and arrangement of the external
and internal conical shaped collar, in the manner and for the purpose herein set
forth.
In witness whereof, I, the said Samuel Hackett Roberts, have hereunto set my
hand and seal, this Fourteenth day of July, in the year of our Lord One
thousand eight hundred and eighty
Signed and sealed
in presence of
P. O'HALLORAN.
SAMUEL HACKETT ROBERTS. (L.S.)