Improvements in Machines for Making Pipes of Clay or other Plastic Material.
Year: 1885

page_text: Improvements in Machines for Making Pipes of Clay or other
Plastic Material.
I, RICHARD CARDWELL ROBINSON, of the Albert Works, Preston in the County
of Lancaster, Engineer and Ironfounder, do hereby declare the nature of said
invention for "IMPROVEMENTS IN MACHINES FOR MAKING PIPES OF CLAY OR
OTHER PLASTIC MATERIAL" to be as follows:-
This Invention relates to that class of machines for making pipes in which is
employed a vertically arranged clay cylinder or chamber from the bottom of which
the pipes issue. As ordinarily arranged the vertical cylinder or chamber occupies
a fixed or permanently vertical position and the clay is fed or supplied at the top
of the cylinder; a stage or platform being usually required upon which the clay or
other material may be first lifted or raised to be again lifted or conveyed to the
top or mouth of the cylinder.
According to my invention the cylinder or chamber about midway of its length
is carried upon trunnions mounted in suitable side bearings in such manner that
the cylinder may be oscillated and its mouth turned over to a more or less
horizontal position when it may be filled or charged at one side instead of from the
top as heretofore. By this arrangement the necessity of a stage or platform and
the lifting of the clay thereupon is dispensed with, whilst the labour required is
economised and the productive power of the machine is increased.
DOLL
L
1 1007
W. LLOYD WISE,
Applicant's Agent.

page_text: Improvements in Machines for Making Pipes of Clay or other
Plastic Material.
I, RICHARD CARDWELL ROBINSON, of the Albert Works, Preston, in the County
of Lancaster, Engineer and Ironfounder, 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 relates to that class of machines for making pipes in which is
employed a vertically arranged clay cylinder or chamber from the bottom of which
the pipes issue. As ordinarily arranged the vertical cylinder or chamber occupies
a fixed or permanently vertical position, and the clay is fed or supplied at the top
of the cylinder; a stage or platform being usually required upon which the clay or
other material may be first lifted or raised, to be again lifted or conveyed to the
top or mouth of the cylinder.
According to my invention the cylinder or chamber, about midway of its length,
is carried upon trunnions mounted in suitable side bearings in such manner that
the cylinder may be oscillated and its mouth turned over to a more or less
horizontal position when it may be filled or charged at one side instead of from the
top as heretofore. By this arrangement the necessity of a stage or platform and
the lifting of the clay thereupon is dispensed with, whilst the labour required is
economised and the productive power of the machine is increased.
In the accompanying Drawings Fig. 1 is a back view and Fig. 2 a side view of a
machine for making sanitary pipes constructed with an oscillating cylinder as
above described.
A is the clay cylinder or chamber carried upon the trunnions B B¹ working in
Bide bearings C (the end of the trunnion B and of its bearing being shewn in
Fig. 2). D is a handle or lever, attached at its inner end to the trunnion B¹, by
which the cylinder A may be pulled over-preferably as far as the position shewn
in dotted lines in Fig. 2, in which position the cylinder is charged or fed with the
clay. A pin in the spring locking device E on the handle D enters holes in the
curved plate F so that the cylinder may be held securely in either its vertical or
diagonal position. The piston or plunger G presses down the clay in the cylinder
through the die H and is fastened upon the lower extremity of a toothed rack I
geared into by the pinion J which is rotated through the medium of the wheel
gearing K K and LL¹ by one of the handles M or N as required for raising or
lowering the piston respectively. The pinion gear L¹ is used for obtaining
increased power for forcing the clay through the cylinder and may be slided out of
gear sidewise when the piston is to be raised and a quicker return speed obtained
by the use of the handle M. In lieu of the wheel gearing and rack and pinion
arrangement for operating the piston or plunger by hand as just described a steam
cylinder may be conveniently employed. O is an ordinary arrangement of table
apparatus moving downwardly by the pressure of the pipe as it issues from the
die, balance weights P being provided and also the locking bar Q for holding the

page_text: table in position during the formation of the socket portion of the pipe. A
stretched wire moving radially or other convenient appliance is employed for
cutting off the pipes at the mouth of the die to the required length.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
In machines for making pipes of clay or other plastic material the use or employ-
ment of an oscillating clay cylinder or chamber arranged and operating substantially
as described and shewn in the Drawings for the purpose set forth.
Dated this 21st day of December 1885.
Witness:
YATES W. BOOTH,
Patent Agent, Preston.
R. C. ROBINSON.