Improvements in Couplings or Joints for Pipes or Tubes.
Year: 1891

page_text: Date of Application, 31st Mar., 1891
Complete Specification Left, 31st Dec., 1891--1cepted, 13:h Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in Couplings or Joints for Pipes or Tubes.
I PATRICK O'CONNOR of High Street Wavertree, Liverpool in the County
of Lancaster, Gas and Hot Water Engineer do hereby declare the nature of this
invention to be as follows:-
-
The object of this invention is to provide a simple form of joint or coupling for
pipes or tubes, which shall be fluid tight, easily made, and which will enable any
part of a range of pipes to be removed without disturbing the remainder.
For this purpose I employ loose socket collars which are passed over the ends
of the pipes and prevented from coming off by burrs or projections raised on the
ends of the pipes. The flanges or collars bear against the burrs or projections on
the pipes and are secured together by bolts and nuts or by links or hooks passing
over projections on the said flanges. A packing ring of india rubber or other
suitable material is placed between the ends of the pipes in order to keep the joint
tight. In the case of cast iron pipes I form the collars with projections which
can pass through recesses in flanges cast or otherwise secured on the ends of the
pipes, when by a partial turn, the projections on the collars will be in position to
bear against the flanges which can be secured together as above mentioned.
Dated this 28th day of March 1891.
Per pro J. T. KING,
W. B. Johnson,
Agent.
COMPLETE SPECIFICATION.
Improvements in Couplings or Joints for Pipes or Tubes.
I PATRICK O'CONNOR of High Street Wavertree, Liverpool in the County of
Lancaster Gas and Hot Water Engineer 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 :-
The object of this invention is to provide a simple form of joint or coupling for
pipes or tubes which shall be fluid tight easily made and which will enable any part
of a range of pipes to be removed without disturbing the remainder.
For this purpose I employ loose socket collars which are passed over the ends
of the pipes and prevented from coming off by burrs or projections raised on the
ends of the pipes. The flanges or collars bear against the burrs or projections on
the pipes and are secured together by bolts and nuts or by links or hooks passing
over projections on the said flanges. A packing ring of india rubber or other
suitable material is placed between the ends of the pipes in order to keep the joint
tight. In the case of cast iron pipes, I form the collars with projections which can
pass through recesses in flanges cast or otherwise secured on the ends of the pipes
when by a partial turn the projections on the collars will be in position to bear
against the flanges which can be secured together as above mentioned.
DESCRIPTION OF THE DRAWINGS.

page_text: during cutting to the required length or afterwards. d is a packing ring placed
between the ends of the pipes. The flanges or collars a, a, are made with
shoulders e, e which bear against the burrs cc on the ends of the pipes with lugs
or projections f, f', and with extension pieces g,g. h links or keys which pass
between the lugs or projections and bind the flanges or collars a, a, together, the
extension pieces 9 g¹ enable the collars to be squeezed together by pinchers or
tongs whilst links or keys are being placed in position. The lugs or projec-
tions,, are slightly bent inwards after the links or keys are inserted to hold
them in position.
Fig. 3 shows a modification of lug and link connection. Instead of links or
keys h, bolts and nuts may be used in which case the lugs in Fig. 3 would be
provided with holes.
Figs. 4, 5 and 6, are end views of couplings or joints under my invention for use
with cast metal pipes. Here the collars a are formed with projections i which pass
through recesses in flanges k cast on or otherwise secured to the ends of the
pipes. The said flanges & may extend almost wholly around the pipes as in Fig. 4,
be equally spaced with the recesses as in Fig. 5 or occupy only a small portion of
the circumference in the form of lugs as in Figure 6.
Fig. 7 is a longitudinal view partly in elevation and partly in section of Fig. 6.
d is the packing ring of rubber or suitable material. h, are the bolts and nuts for
keeping the joint tight. In Figs. 6 and 7 the recesses between the projections on
the flanges or collars a are used as bolt holes, in Figs. 4 and 5, separate bolt holes
are provided. When a cast metal pipe has to be cut, the flange is made in the
form shown in Fig. 8, and is secured to the cut end of the pipe by set screws l. It
will be noticed that the flanges or collars in all the couplings or joints are preferably
so made as to overlap the packing ring and keep it in position.
In all the views the same letters denote equivalent parts.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
First. Couplings or joints for wrought metal, copper, or like pipes consisting
of socket flanges or collars provided with shoulders, lugs, and links in combination
with a packing ring and pipes having burred ends substantially as set forth.
Second. Couplings or joints for wrought metal, copper, and like pipes consisting
of socket flanges or collars provided with shoulders, lugs, extension pieces, and
links in combination with a packing ring and pipes having burred ends substantially
as set forth.
Third. Couplings or joints for cast metal pipes consisting of collars with
projections, in combination with flanges and recesses on the ends of the pipes, a
packing ring and bolts and nuts substantially as set forth.
Dated the 30th day of December 1891.
Per pro J.T. KING,
W. B. Johnson,
Agent.