IMPROVEMENTS IN AND RELATING TO JOINTS OR UNIONS FOR PIPES OR TUBES
Year: 1878

page_text: 66
LETTERS PATENT to William Robert Lake, of the Firm of Haseltine, Lake,
& Co., Patent Agents, Southampton Buildings, London, for the Invention of
IMPROVEMENTS IN AND RELATING TO JOINTS OR UNIONS FOR PIPES OR
TUBES." A communication from abroad by George Matheson, of McKeesport,
Pennsylvania United States of America.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Cominissioners of Patents on the 30th November 1878.
⚫ WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patent Agents,
Southampton Buildings, London. IMPROVEMENTS IN AND RELATING TO JOINTS
OR UNIONS FOR PIPES OR TUBES." [A communication from abroad by George
Matheson, of McKeesport, Pennsylvania, United States of America.]
This Invention relates to improvements in joints or unions of pipes or tubes for
that class of pipes or tubes known in commerce as wrought iron pipes.
The said Invention consists, first, in making one end of each pipe or tube bell-
mouthed for the reception of the opposite end of a similar pipe or tube, and in
placing over the bell-mouthed portion a sleeve for the purpose of supporting the
bell-mouthed end, whereby it can be caulked by upsetting without spreading out-
ward the said bell-mouthed end,. thereby forming a tight joint and imparting
strength and stiffness at the point of union, between the two sections.
The said Invention also consists in interposing between the outer wall of the
entering end of this pipe or tube and the inner wall of the bell-mouthed end
a gasket of lead or other suitable packing material, and forcing the sleeve of
wrought iron over the bell-mouthed end and subsequently caulking the gasket or
packing between the said walls of the two sections of the pipe or tube.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Robert Lake in the Great Seal Patent Office on the 29th May
1879.
WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake, & Co., Patents Agents,
Southampton Buildings, London. "IMPROVEMENTS IN AND RELATING TO JOINTS
OR UNIONS FOR PIPES OR TUBES." A communication from abroad by George
Matheson, of McKeesport, Pennsylvania, United States of America.
This Invention relates to improvements in joints for that class of pipes or tubes
known commercially as wrought iron pipes. The said Invention consists in making
one end of each pipe or tube bell-mouthed for the reception of the opposite end of
a similar pipe or tube and placing over the bell-mouthed portion a sleeve for
supporting the bell-mouthed end whereby it can be caulked by upsetting for the
purpose of forming a tight joint and imparting strength and stiffness at the point
of union of the pipes. The said Invention also consists in interposing between the
outer wall of the entering pipe and the inner wall of the bell-mouthed end a gasket
of lead and then forcing a sleeve of wrought iron over' the bell-mouthed end and
subsequently caulking the lead gasket between the said walls of the two sections of
pipe.
The said Invention is illustrated in the accompanying Drawing, in which,--
Figures 1 and 2 are side views of two sections of pipe joined or connected
according to this Invention.
Figures 3 and 4 are longitudinal sections of the same.
A, B, represent sections of two pipes; one end of section A is enlarged, forming a
bell-mouth for the reception of the section B. Over the bell-mouthed end of the
section A is placed a ring C which is driven on so as to bring one edge of the ring
about even with the edge of the bell-mouthed end of section-A, as indicated at e in
Figures 2 and 4. The edge of the bell-mouthed end is then caulked. The ring
serves as a clamp, the bell-mouthed end of the pipe being held between it and the
outer wall of the entering pipe. One end of each section of pipe should be made
bell-mouthed for the reception of the opposite end of the next section of pipe. Care
should be taken to so construct the bell-mouthed end that it will sufficiently lap
over the entering pipe and its inner wall will so fit over the outer wall of the end
of the entering pipe as to form a stiff and close joint, which in connection with the
ring and caulking as hereinbefore described will give to the joint strength and
stiffness with economy of material, at the same time securing a perfectly tight joint
of pipes of any desired thickness. Figures 1 and 3 represent the joint when a lead
gasket D is interposed between the inner wall of the bell-mouthed section A and
the outer wall of the entering pipe B, the ring C being forced on the bell-mouthed
end until the edge of the ring is about even with the edge or end of the bell-mouth;
the lead gasket is then firmly caulked between the aforesaid walls of the two
sections of pipe.
The advantage of this Invention will be apparent in the formation of joints of
pipes or tubes constructed of thin metal, it being well understood by all familiar
with the forming of joints in pipes that it is very difficult to make them water or
steam tight without resorting to soldering or brazing, which is expensive and
attended with great trouble and labour. A further advantage consists in the ease
and rapidity of forming a perfect union between the pipes, and the ease and facility
with which they can be separated.
Having thus fully described the said Invention, as communicated to me by my
foreign correspondent, and the manner of performing the same, I wish it understood
that I claim,-
First. A joint between two sections of pipes or tubes formed by making one end
of each section bell-mouthed and placing over the bell-mouthed end a ring whereby
the edge of the said bell-mouthed end may be caulked by upsetting between the

page_text: inner walls of the ring and the outer walls of the entering pipe, substantially as
herein described and for the purpose set forth.
Second. A joint formed between two sections of pipes or tubes making one end
of each section bell-mouthed and interposing a lead gasket between the inner wall
of the bell-mouth and the outer wall of the entering pipe, and subsequently placing
a sleeve over the bell-mouth and caulking the lead gasket, substantially as herein
described and for the purpose set forth.
In witness whereof, I, the said William Robert Lake, have hereunto set
my hand and seal, this Twenty ninth day of May, in the year of our Lord
One thousand eight hundred and seventy-nine.
WM. ROBT. LAKE. (L.S.)