IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED IN THE MOULDING OF SANITARY TUBES OR PIPES
Year: 1871

page_text: LETTERS PATENT to Julius Whitehead, of Darwen, in the County of
7
Lancaster, Fire Clay Works Manager, for the Invention of
66
.
* IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED IN THE
MOULDING OF SANITARY TUBES OR PIPES."
Sealed the 23rd February 1872, and dated the 12th December 1871.
· PROVISIONAL SPECIFICATION left by the said Julius Whitehead at
-
ther Office of the, Commissioners of Patents, with his Petition, on
the 12th December 1871...
Τ
I, JULIUS WHITEHEAD, of Darwen, in the County of Lancaster,
5 Fire Clay Works Manager, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED
7 PER" to be as follows:-
IN THE MOULDING OF SANITARY TUBES OR PIPES,'
2.3
to 11.
%.
T
This Invention relates to the construction of dies. or apparatus, for
forming or moulding the sockets of sanitary tubes or pipes, and in the
apparatus for operating the said dies without the necessity of levers.

page_text: and apparatus as heretofore used for separating or dividing the socket
moulds, and so to obviate the frequent damage to the sockets of the
tubes or pipes during the process of moulding.
I construct the clay cylinder with its lower end shaped according to
the form of socket required: At each side of the said cylinder is a
guide rod. Extending from rod to rod and immediately under the clay
cylinder is a table or bed rail on which the "socket" block" rests; the
table or bed rail ascends the guide rods by means of chains or cords
and counterbalance weights passed over pulleys; the socket block is
thus brought into proper position within the socketed end of the clay
cylinder, and there held by catches until the piston descends, partially
forcing the clay into the socket dies. The catches are now released and
the piston resumes its downward stroke, forcing down the table or cross
rail to its original position, and completing the formation of the cylin-
drical part of the tube or pipe. The completed tube or pipe is now
removed from the table or bed rail, and the socket block withdrawn from
the socket of the pipe and replaced on the table or bed rail ready to
repeat the operation.
*****
The die of the socket is perforated, and its interior lined with cloth,
through which air is admitted (on the further descent of the piston) so
as to prevent formation of vacuum.
t
7

page_text: 1
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DE TISTS OJ 23
assigns, or such others as I; the said Julius Whitehead, my executors,
administrators, and assigns, should, at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
MACHINERY OR APPARATUS TO BE EMPLOYED IN THE MOULDING OF SANITARY TUBES
OR PIPES," upon the condition (amongst others) that I, the said Julius
Whitehead, my executors' or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particularly
describe and ascertain the nature of the said Invention, and in what
manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office, within, six. calendar months, next and
19
immediately after the date of the said Letters Patent.
↑
E
NOW KNOW YE, that I, the said Julius Whitehead, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement and accompanying Sheet of Drawings (that is
to say:
3 FT IL
35.
543
This Invention relates to the construction of dies or, apparatus, for
forming or moulding the sockets of sanitary tubes or pipes, and, in- the
apparatus for operating the said dies without the necessity of levers
and apparatus as heretofore used for separating or dividing. the socket
moulds, and so obviate the frequent damage to the sockets of 'the
tubes or pipes during the process of moulding.
i **
I'construct the clay cylinder with its lower end shaped according to
the form of socket required. At each side of the said cylinder is a
guide rod. Extending from rod to rod and immediately under the clay
cylinder is a table or bed rail on which the "socket block" rests; the
table or bed rail ascends the guide rods by means of chains or cords and
counterbalance weights passed over pulleys; the socket block is thus
brought into proper position within the "socketed end of the clay
cylinder, and there held by catches until the piston descends partially,
forcing the clay into the socket dies. The catches are now released and
the piston resumes its downward stroke, forcing down the table or
cross rail to its original position and completing the formation of the
cylindrical part of the tube or pipe. The completed tube or pipe is
"

page_text: "
1
1
now removed from the table or bed rail, and the socket block withdrawn
from the socket of the pipe and replaced on the table or bed rail ready
to repeat the operation.
T
The die of the socket is perforated, and its interior lined with cloth,
through which air is admitted (on the further descent of the piston) so 5
as to prevent formation of vacuum.
*Such being the nature and object of this my said Invention I will
now proceed to describe the same in detail, and in order that the same
may be clearly understood I have hereunto annexed a Sheet of Drawings,
and have marked the same with figures and letters of reference, the 1
same letter referring to the same part in the various views or. Figures....
1
+1
Fig. 1 is a front elevation of a machine for moulding, sanitary pipes
or tubes, and constructed according to this my. Invention.
*
#
Fig. 2 is a detached view drawn to an enlarged scale, shewing in
section one of my improved dies. Fig. 3 is a plan view of the same, 14
and it will be seen that the die is constructed of complete 'rings, and
not in halves or part rings, as heretofore.
$1
-
Fig. 4 is a detached part of die, enlarged scale; and at Fig. 5 is
shewn the same construction of dies, there being in this illustration
(and at Fig: 1) four of such improved dies, so as to mould four pipes 2
or tubes at one operation.
ة والى
I
A is the clay cylinder, which is of the ordinary character, the clay
therein being forced or expelled therethrough and into the "bell" or
enlarged portion A¹ thereof by a piston and piston rod or rods, as usual.
B is the socket mould, which is by the flanges B₁ and bolts,B³ secured 2
to the lower part of the clay cylinder, as shewn. The bevelled part B³
forms the shoulder of the socket; this part by preference I make of
wood, and it is secured between the flanges B₁ by the bolts-B².- -F;-F,
-are-holes-formed_in_the_part_B³ (see Figs. 2 and 3). From the holes
FF,branch or radiate other smaller holes F¹, F1; the object of these 3
perforations-is-to-admit-atmospheric_air_to_the_ socket die when a pipe
or tube is being forced from the cylinder and mould, and so prevent
damage to the pipe or tube by the formation of vacuum or vacuity be-
tween the socket shoulder of the pipe or tube and the interior of the die.
The perforated face of the part B³ is faced or covered with cloth, linen, 3.
or other fabric, to prevent the clay being forced into and stopping-up

page_text: THE OVE
102
the holes! and so precluding the admittance of the necessary supply of
air.On each side of the clay cylinder Aisya guidé rod Hand
extending from rod to rod is a table or bed rail J, on which the ordinary
socket block K rests. The table or bed rail J ascends the guide rods
by means of the counterbalance weights and pulleys K', K'; the socket
block K is thus brought into proper position within the, socket forming
end' of the clay cylinder (see Fig. 2), and there held by the catches L
catching and holding the flanges of the nuts M (the nuts M may readily
be adjusted to any height on the guide rods by means of the chasing
or screwing thereon). The clay piston now partially descends: ¿witliin
the clay cylinder, forcing the clay into the socket die and, so förming the
socketed end of the pipe or tube The catches, Lare now released from
the flanges of the nuts M by hand or foot clever connected at their
junction N and the clay piston resumes its downward stroke, forcing
down the table or bed rail J and forming the cylindrical part P of the
table
tube or pipe.
ZOQPQI
At Fig. 4cl have shewn section of dies having perforated air passages,
and precisely constructed as above described;) in connection with Figs. 1,
2, and 3) suitable for manufacture of smaller pipes, and have shewn
four such dies; any convenient number of such dies however may be
employed, according to the power of the clay piston, capacity of clay
cylinder and "bell," the cores R₁ being suspended by the bridge R².
Fig. 6 is a plan view of Fig. 5, and as will be clearly understood the
dies are arranged on the plate R, and the whole secured to the "bell"
or bottom of the clay cylinder by bolts; the bed rail J will of course be
'provided with a corresponding number of socket blocks K, as shewn at
Fig. 7; the boards K² on which these rest are hinged in order to
facilitate removal of the pipes when moulded, as shewn at Figs. 8, 9.
The socket blocks will be greased or oiled as usual.
Having thus fully described the nature and particulars of this my
said Invention, together with the manner in which the same is to be or
may be performed or carried into practical operation, I would have it
distinctly understood that I claim as my Invention,―
Firstly. The catches and adjustable nuts on the guide rods, as and for
the purpose herein fully described and shewn in the Drawings.
Secondly. The construction and use of perforated dies, as and for
the purpose herein fully described and illustrated by Drawings.

page_text: Lastly. I claim the use or employment of cloth, linen, or other fabric
as a facing or lining for perforated dies employed in the manufacture of
earthenware sanitary pipes or tubes, as herein-above fully described and
shewn.
In witness whereof, I, the said Julius Whitehead, have hereunto
set "my hand and seal, this Tenth day of June, in the year
of our Lord One thousand eight hundred and seventy-two.
JULIUS, WHITEHEAD: (L.S.)
Witness,
JA. BULLOUGH;
Manufacturer (Sanitary Tubes),
Park House,
Blackburn.