Apparatus for use in Forming Joint Ends on Electrical Conduits, Drain Pipes, and the like.
Year: 1899

page_text: Date of Application, 14th Oct., 1899
Complete Specification Left, 13th July, 1900-Accepted, 1st Sept., 1900
PROVISIONAL SPECIFICATION.
Apparatus for use in Forming Joint Ends on Electrical Conduits,
Drain Pipes, and the like.
We, THE ALBION CLAY COMPANY, LIMITED, of Woodville, near Burton-on-Trent,
and in the County of Leicester, and ROBERT LAWTON, of Boothorpe House, Wood-
ville, aforesaid, Manager to the said Company, do hereby declare the nature of
this invention to be as follows:-
―
This invention has for its object to provide apparatus by means of which the
socket and spigot ends of stoneware electrical conduits, drain pipes, and the like,
are provided with composition joints such that the said conduits, pipes, or the
like, can be laid with great readiness and certainty, and in true alignment, both
horizontally and laterally.
It is necessary for this purpose that the bitumenous compound, or cement, applied
to the interior of the sockets and to the exterior of the spigots, for the purpose
of making the joints, should be so formed that the spigot should truly fit into
the socket of the next conduit, pipe, or the like, in such a manner that the lengths
wlien joined together are in true alignment both horizontally and laterally. To
enable this to be done there is provided, according to this invention, a pair of
male and female moulds, one of which is formed to mould the bitumenous com-
pound, or cement, on the spigot end, and the other to mould the bitumenous
compound, or cement in the socket end, of the conduit, pipe, or the like.
The said moulds are mounted so that the conduit, pipe, or the like, can be placed
with its spigot end in the female mould, the male mould is then lowered into
the socket of the conduit, pipe, or the like, the parts being so mounted, or guided,
as to keep in true alignment with each other, both horizontally and laterally.
The bitumenous compound, or cement, to form the joint, being reduced to a
sufficiently liquid state, is then introduced between the moulds and the ends
of the conduit, pipe, or the like, preferably to a depth to leave in the socket a
space for the insertion of a filling of plastic material, composition, or cement,
when the conduits, pipes, or the like, are laid. A convenient arrangement accord-
ing to this invention is to mount the female mould upon a base-plate, the said
base plate being provided with vertical guide posts connected by a horizontal
crosshead.
The male mould is attached to a horizontal cross-bar which works between the
vertical guide posts, to this cross-bar is attached a vertical spindle, or screw,
working through the crosshead at the top of the guide posts, the said spindle, or
screw, and cross-bar with the male mould being actuated by means of a balance
weight or lever. Attached to the said guide posts are two moveable brackets
to which in turn is attached a liorizontal bar, or level plane, which can be moved
laterally in slots in the said bracket and be secured in its proper position by means
of screw pins and nuts. The moulds are removeable so that any size of moulds
can be fixed to the apparatus.
In working the apparatus, the male mould is attached to the cross-bar on the

page_text: vertical spindle, or screw and the female mould is placed on the base plate, then
the male mould is lowered until it fits truly into the female mould, thus ensuring
that both moulds are in line, then the female mould is secured to the base plate,
and the male mould is raised, and the horizontal bar, or plane, is moved to the
requisite height on the guide posts (according to the length of the conduit, pipe,
or the like, on which the joints are to be formed) and it is moved laterally in
the slots so that the horizontal bar, or plane, is in true alignment with the moulds,
and also at the requisite distance from the guide posts according to the diameter
of the conduit, pipe, or the like, then the horizontal bar, or plane is secured by
means of the screw pins and nuts and the conduit, pipe, or the like, is placed
in position with its spigot end in the female mould. The male mould is then
lowered into the socket and the conduit, pipe, or the like, is thus fixed vertically
with the horizontal bar, or plane, fitting close to the exterior of the socket. The
conduit, pipe, or the like, may be firmly held in position to the horizontal bar.
or plane, by means of a spring arm attached to the guide posts and fitting round
the opposite side of the socket.
The moulds and the horizontal bar, or plane, being all in true alignment with
each other, the bitumenous compound, or cement, is then introduced into the
upper and lower moulds and when it is properly set, the male mould is raised and
the conduit, pipe, or the like, is removed from the female mould, the said conduit,
pipe, or the like, having thus formed upon it and in it joints, that, when the
conduits, pipes, or the like, are joined together will ensure the said conduits,
pipes, or the like, being in true alignment both horizontally and laterally.
Dated this 14th day of October 1899.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
Apparatus for use in Forming Joint Ends on Electrical Conduits,
Drain Pipes, and the like.
We, THE ALBION CLAY COMPANY, LIMITED, of Woodville, near Burton-on-Trent,
and in the County of Leicester, and ROBERT LAWTON, of Boothorpe House, Wood-
ville aforesaid, Manager to the said Company, 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:-
This invention has for its object to provide apparatus by means of which
the socket and spigot ends of stoneware, or earthenware electrical conduits, drain
pipes, and the like, whether single, or in multiple form, (that is with two, or
more, passages formed through the sections forming the conduit), and whatever
may be their external and internal shape (circular, square, oblong, hexagonal, or
octagonal, for example) are provided with composition joints, such that the said
conduits, pipes, or the like, can be laid with great readiness and certainty, and
in true alignment both horizontally and laterally.
Conduits made in multiple forni, and joined by means of bitumenous com-
position linings forming the joints at the spigot and socket ends as shewn and
described in the Specification of Letters Patent granted to William Sykes
No. 6024 of the 11th March 1898, possess many advantages, but, owing to irregu-
larities in the conduit sections caused in burning, special care is necessary to
insure that the said linings, or joints, shall be attached so that the spigot and
socket linings, or joints, are exactly in line with each other, as otherwise it is
impossible to lay the conduits in true line. It is necessary that the bitumenous

page_text: compound, or cement, used to make the joints, should be so formed in relation to
the sections of the conduit, pipe, or the like, to which it is applied that the
spigots will truly fit into the sockets of. the next sections, so that the sections,
when laid, will be in true alignment both horizontally and laterally. The object of
this invention is to provide an apparatus by means of which this true formation
of the joints can be done with facility.
To enable this to be done there is provided, according to this invention, a pair
of moulds, one being a female mould to mould the bitumenous composition or
cement, on the spigot end, and the other being a male mould to mould the
bitumenous composition, or cement, in the socket end of each section of the
conduit, pipe, or the like. The said moulds are mounted so that a section of
the conduit, pipe, or the like, can be placed with its spigot end in the female
mould and the male mould be then lowered into the socket end of the section,
the moulds being so mounted and guided as to keep in true alignment with each
other both horizontally and laterally. The bitumenous composition, or cement.
in a sufficiently liquid state, is introduced between the moulds and the ends of
the section of the conduit, pipe, or the like, preferably to a depth to leave in the
socket a space for the insertion of plastic material, or cement, after the sections
are laid in place to form the conduit, pipe, or the like.
We will describe with reference to the accompanying drawing an apparatus
constructed according to this invention.
We have illustrated a machine for making the joints of a four-way conduit,
but it will be readily understood that it can be applied to conduits, pipes, or
the like. having but one way, or two, or more, ways through them and to conduits
of any formation externally and internally by correspondingly forming the dies.
C is a male mould for forming the joint in the socket end A, of the section
of the conduit and 1) is a female mould for forming the joint on the spigot end B
of the said section. The female mould D, is mounted upon a base plate E,
provided with vertical guide posts F. connected by a horizontal cross-bar G. The
male mould C is attached to a horizontal cross-head H. working up and down
on the guide posts F, and to this cross-head H, is attached a vertical spindle J.
working through the cross-bar G. the said spindle J, and cross-head H, and
mould C, being raised and lowered together. For this purpose the spindle J is,
in the arrangement illustrated, connected to a cord passing over a pulley and
carrying a counterweight K, but, if desired, the spindle J, may be replaced by
a screw which can be worked up and down in a nut in the cross-bar G,, by
rotating the screw, or the nut may be rotatable to cause the screw to move up
and down in it. When a screw is used the superstructure shewn for supporting
the pulley can of course be dispensed with.
Attached to the cross-head H. are two brackets L, to which is attached a hori-
zontal bar, or level plane, M, which is secured by screw-pins and nuts, the screws
passing through slots in the brackets L, to allow of the bar, or plane, M, being
adjusted to suit different sized sections of conduit, pipe, or the like. The moulds
are removeable so that they can be replaced by moulds of any desired shape and
size.
In working the apparatus the male mould C is attached to the cross-head H,
and the female mould is placed on the base plate E. and then the mould C, is
lowered until it fits properly into the female mould, thus ensuring that the
moulds are in line with each other, and then the female mould is secured to the
base plate E. and the mould C is raised, and the bar, or level plane, M, is moved
laterally to be in true alignment with the moulds C, and D, and at the requisite
distance therefrom, according to the diameter, or width, of the socket of the
sections of the conduit, pipe, or the like, in and on which the joints are to be
formed, and then the said bar, or plane, M, is fixed by its screws and nuts, and
the section of the conduit, pipe, or the like, is placed in position with its spigot
end B, in the female mould D. The male mould is then lowered into the socket A.
of the said section, which is thus fixed vertically with the bar, or plane, M,

page_text: bearing against the exterior of the socket of the said section, at one side thereof,
to which it may be firmly held by means of a spring arm or spring arms N
attached to the cross-head H and bearing on the opposite side of the socket.
The moulds, C, and D, and the bar, or plane, M, being all in true alignment
with each other, the bitumenous composition, or cement A¹ B₁ is then introduced
into the spaces in the upper and lower moulds between them and the socket and
spigot ends of the section of the conduit, pipe, or the like, and, when the said
composition, or cement, is properly set, the mould C, is raised and the said section
is removed from the mould D), the said section having thus formed upon it. and
in it, joints so truly formed that they will ensure the true alignment, both hori-
zontally and laterally, of all the sections when they are placed in position and
joined together to form the conduit, pipe, or the like.
We do not limit ourselves to the precise details shewn in the drawings; for
example, the spindle J, may be operated by a lever instead of by a cord and
counterweight, or screw, as described, and instead of the bar, or plane, M, being
secured to the brackets L fixed to the cross-head it may be secured to brackets
capable of being moved up and down on the posts F. and of being fixed in
position by pinching screws, and the said bar, or plane, M, can be caused to bear
on the body part of the section. in and on which the joints are formed, instead
of on the socket-say about midway of the sections length.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. An apparatus for use in forming joint ends on electrical conduits, drain
pipes, and the like; the said apparatus being constructed substantially as herein-
before described and illustrated in the accompanying drawings.
2. In apparatus for use in forming joint ends on electrical conduits, drain
pipes, and the like, a female mould mounted on a base, vertical guides carried
by the base, and having a cross-head working thereon, and carrying a male mould,
and means for moving the said cross-head and mould up and down; substantially
as hereinbefore described.
3. In apparatus for use in forming joint ends on electrical conduits, drain
pipes, and the like, a female mould mounted on a base, vertical guides carried by
the base, and having a cross-head working thereon, and carrying a male mould,
and means for moving the said cross-head and mould up and down, and a bar, or
plane, capable of being adjusted laterally to bear on the side of the sections on
which the joints are to be formed; substantially as herein before described.
Dated this 13th day of July 1900.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.