Improvements in the Means of Connecting Pipes.
Year: 1890

page_text: Improvements in the Means of Connecting Pipes.
We, WILLIAM HULME, Junior, and JAMES HULME, both of Moor Nook, Sale, in
the County of Chester, Market Gardeners, do hereby declare the nature of this inven-
tion 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 the means of connecting the ends of pipes, such as are or
may be used for water, steam, gas, or other purposes, and the object of this invention
is to obtain a perfect and unleakable joint in pipes, which may be readily connected
without the use of cement or other like substances, and requiring the aid of experienced
workmen to form a joint, or may be disconnected without injury to the pipes.
In order more clearly to describe this our invention, we have annexed hereunto a
sheet of drawings.
In the several views shown therein similar letters refer to similar parts.
In this invention we form pipes which terminate at one end with a socket, and at
the opposite end are of a diameter corresponding externally to inside diameter of
socket.
Fig. 1 is plan view of one end of a pipe, terminating with a socket which is con-
structed with a grooved projection on each side.
Fig. 2 is plan view of the opposite end of a pipe formed externally of a diameter
corresponding to internal diameter of aforesaid socket.
Fig. 3 is an end view of Fig. 1.
Fig. 4 is sectional elevation drawn through line A. B. in Fig. 5, showing pipes
coupled. In this view the end of pipe a is the same as is represented in Fig. 1, and
the end of pipe b which is shown inserted therein is the same as is represented in
Fig. 2.
On each side of socket a¹ we form longitudinal projections c, in which are holes e.
Within each of the projections c we form a longitudinal groove d: At the bottom of
socket a¹ we form a shoulder f: We make the width of this shoulder preferably the
same as the thickness of metal forming pipe, and may either be flat, or may be
hollowed to form a groove therein: On each side of the end of pipe 6 which is
intended to be inserted in socket a' and near the end of said pipe, we form lugs or
projections h.
We make these projections of a size to fit easily into grooves d, but shorter
than said grooves, so that when end of pipe b is inserted in socket a¹, the back part ¹
of the projections h shall not have passed clear of holes e: this is represented in
Figs. 4 & 6. Within the groove formed in shoulder fat bottom of sockot a¹ we
place india rubber or other suitable material 9 for packing: By these means when
it is required to couple or connect two pipes, the end of one pipe is inserted in
socket al of the pipe a to which it is intended to be connected and pushed in until
the end 6 of pipe b rests on packing 9: We then place taper or other suitable
wedges in the holes e and drive them in firmly the end of pipe is thus pressed
tightly against the packing 9, and an unleakaife joint is by these means formed.
Figs. 6 and 7 represent plan and end view respectively of a modification of this
invention in those views we dispense with the socket al and form lugs con end of
pipe a so as to project beyond the end of said pipe: between those lugs the end 61
of pipe is inserted and secured by wedges to the pipe a in the same manner as
hereinbefore described.
In order to disconnect or uncouple said pipes, it is only necessary to withdraw the
wedges, when the pipes may be immediately separated.

page_text: Having now particularly described and ascertained the nature of this our inven-
ion, and in what manner the same may be performed, we declare that what we
claim is:
.
In pipes that are or may be employed for water, steam, gas, and for other purposes,
the use of wedges for coupling said pipes, and securing the joint, which is formed by
means of lugs or projections constructed at one end of a pipe, within or between
which is inserted and held firmly by means of wedges the end of pipe requiring to be
connected thereto, in the manner and for the purpose substantially as hereinbefore
described and as illustrated.
Dated this 7th day of March 1800
THOMAS PRESCOTT,
Arcade Chambers, St. Mary's Gate, Manchester, Agent for Applicants.