Improved Apparatus for Manufacturing Pottery.
Year: 1893

page_text: Date of Application, 26th Sept., 1993
Complete Specification Left. 23rd June, 1894-Accepted, 22nd Sept., 1894
PROVISIONAL, SPECIFICATION.
Improved Apparatus for Manufacturing Pottery.
JOHN SLACK 64 Portland Road Nottingham Lace Maker, do hereby declare the
nature of this invention to be as follows:-
I use an ordinary throwing wheel having its vertical. shaft,hollow (to admit. of
appliances to be hereafter fully described). I use also an additional disc for. the
same purposе. I use plates containing the designs intended for reliefs &c: according
to shape required; these may be of plaster, stamped metal, or hand wrought and
rendered adjustable by lever or screw. I use appliances by means of hollow shaft
enabling me to operate from opposite points and by means of an additional disc
I secure the same end in an opposite direction..
Dated this 26th of September 1893.
JOHN SLACK,
64, Portland Road, Nottingham.
Improved Apparatus for Manufacturing Pottery.
JOHN SLACK, 64 Portland Road Nottingham Lace Maker, 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 :-
I use an ordinary throwing wheel having its vertical shaft hollow, to admit of
appliances, which I proceed fully to describe. I use an additional disc A A
secured by screwing, pinning, or otherwise fastening to the top of vertical shaft B
said disc having any required number of slots, placed equidistant, or otherwise
determined by the capacity intended.
In these slots are affixed joints C, C, on which are attached the upper end of the
required number of supports intended to be used.
use a second disc D a facsimile of the first and through the slots E of this
I pass the necessisary number of arms jointed on the disc below, and connecting
with the upper end of supports for ornamental plates F F.
This second disc in operation is capable of an ascending motion the shaft to
which it is fastened at the top passing down the hollow of the main shaft, this
second shaft also being hollow. By the arrangement of jointing my plates on a
permanent and a moveable disc I secure an expanding and a contracting force and
thus simultaneously affect the whole of the parts the machine remaining
stationary, H H forming the inner and G G the outer mould.
The ornamental parts or plates G being readily adjustable I secure facility for
change of design these plates being fastened to the jointed supports by means of
screws, bevel slides, or other means as most convenient.
When I wish to convert a plain into an ornamental form I proceed as follows.
An approximate shape is thrown in an ordinary manner on an ordinary wheel
(or shaped by hand or mould or from the sheet) and when the proper condition of
plasticity is attained I open my apparatus, & by raising the inner disc, or mould,
then place the article on the centre and introduce within it an inverted H. H
apparatus corresponding to that before described excepting that the shaft and
apparatus are moveable by means of lever acting in direct line I with the centre

page_text: below I open the upper part of the machine or apparatus while I close the lower
simultaneously pressing the article from within and from without.
I also use a lift J which consists of a rod having a small disc affixed at top this
is placed in the hollow of No. 2 shaft and is used for lifting the article when
finished preserving the ornamentation intact.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1st. The hollow shafts (or their equivalents).
2nd. The disc arrangement and the method of applying the joints and supt