wedges, slide for carrying die and two cross plates or bars for carrying the centre
Year: 1897

page_text: Such being the nature and object of this our said invention we have hereunto
annexed a sheet of drawings illustrating the same.
Fig. 1. is an end view partly in section.
Fig. 2. is a view at right-angles to Fig. 1. showing the wedges, slide for carrying
die and two cross plates or bars for carrying the centre in section.
Fig. 3. is a plan.
A. is the slide die which determines the size of the outside of the pipe or retort;
B. is the stock die for carrying the slide die, and is fixed by means of bolts, screws or
studs to the bottom of the clay cylinder of the machine; C. is the centre which
determines the size of the inside of the pipe or retort; D. D. D. are the right and
left-hand screws engaging the nuts E. E. E. E. E. E. which expand and contrast the
die and centre; F. F. F. F. are the wedges at the openings of the die and centre
which descend automatically by the pressure of clay above and fill the apertures
caused by the expansion of the die and centre, and which slide upwards (when the
pressure is released from the clay above) as the die and centre are contracted;
G. G. are the plates or bars attached to the centre block H. to carry the centre which
is provided with slotted holes I. I. I. I. to allow for expansion and contraction;
J. J. J. are the pulleys fixed on the screws or threads which are operated by ropes,
chains or bands connected to the rising and falling table of the machine in such
manner that when a pipe or retort is being drawn the falling table expands the die
and centre and vice-versa.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what we
claim is :
0
The expanding die and centre as described herein and illustrated by sheet of
drawings annexed' as and for the purpose herein set forth.
Dated this 23rd day of September 1897.

page_text: Date of Application, 20th Jan., 1897
Complete Specification Left, 24th Sept., 1897-Accepted, 20th Nov., 1897
Improvements in Dies and Centres for Making Inclined or Tapered
Fireclay Retorts, Pipes, and the like.
WILLIAM INGHAM of Harlow Heath Harrogate Sanitary Pipe Manufacturer and
BENJAMIN LANGTON of 1 Barras Garth Road, Wortley, Leeds Mechanic do hereby
declare the nature of this invention to be as follows:--
Our invention consists in an expanding die and centre which enables retorts pipes
and the like to be made inclined or tapered instead of straight.
The Die and Centre are made in two pieces and expanded at each division bý
means of left and right hand screws or threads driven by rope chain or band thus
allowing dovetailed wedges at each opening of both die and centre to descend
automatically and fill up the space caused by the expansion of the die and centre.
The centre will be carried by one or more plates or bars attached to the centre
block to which the expanding Centre is bolted by bolts passing through slotted holes
inserted in the slide or expanding centre to allow for the expansion.
This 10th day of Tonna 1907
BECK & INCHBOLD,
Agents.
Improvements in Dies and Centres for Making Inclined or Tapered
Fireclay Retorts, Pipes, and the like.
WILLIAM INGHAM of Harlow Heath, Harrogate, Sanitary Pipe Manufacturer and
BENJAMIN LANGTON of 1, Barras Garth Road, Wortley, Leeds, Mechanic, 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 improvement consists in an expanding die and centre which enables pipes,
retorts &c. to be made inclined or taper internally and externally instead of straight,
and of equal or varying thickness throughout their entire length.
The die and centre are made in two or more pieces, and expanded at each opening
by means of left-hand and right-hand screws or threads on which are fixed pulleys
operated by means of ropes, chains or bands connected to the rising and falling table
of the pipe or retort making machine. Dovetailed wedges at each opening of the die
and centre descend and fill up the spaces caused by the expansion of the die and
centre.
The centre will be carried by means of one or more plates or bars attached to the
centre block by means of bolts, studs or screws-slotted holes being provided in the
centre to allow for its expansion and contraction.