Improvements in Potters' Machinery.
Year: 1888

page_text: Date of Application, 2nd Aug., 1888
Complete Specification Left, 2nd May, 1889-Accepted, 15th June, 1889
Improvements in Potters' Machinery.
I, JOHN WILLIAM HARTLEY of California Engineering Works, Stoke on Trent in
the County of Stafford Engineer do hereby declare the nature of this invention to be
as follows:-
This invention more particularly relates to that class of machinery called Blungers,
which are used for the purpose of washing clays.
On the centre shaft I fix a cast iron casing or tube which I carry down outside of
the centre tube in the usual way. To this casing I attach the projecting arms. [
'construct the arms so that when the ends of all the arms are placed against the
centre casing they form a double cone one being inverted these cones are concentric
with the vertical shaft, the largest part of the cones being about the centre line
of the arms.
I fit the bottom of the cone formed by the arms into an internal cone
formed in a collar which I fix firmly upon said casing. I secure the top end of the
cone formed by the arms by a loose collar or ring with internal cone similar to the
fast collar securing the other end.
I pass suitable bolts thro' the loose ring and fixed collar and these when tightened
up close down the external cones upon the cones formed by the ends of projecting
arms and so fasten them securely to the shaft in a simple and efficient manner.
make the projecting arms preferably wedge shaped, the thin end being in the direction
of motion. On the said arins I fix suitable lugs or flanges and bolt thereto vertical
wrot iron or steel dash plates or knives at different angles with centre line of arms.
Slotted holes in dash plates admit of their being lowered as the ends wear away.
TR
n
1000
J. W. HARTLEY.
COMPLETE SPECIFICATION.
Improvements in Potters' Machinery.
I JOHN WILLIAM HARTLEY of California Engineering Works Stoke-on-Trent in the
County of Stafford, Engineer, 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
:-
My invention relates to that class of machinery called Blungers which are used
for the purpose of washing clays. Figures 1 to 5 inclusive on the accompanying
drawing shew my improved arrangement.
Under the centre tube A revolves the shaft D. Upon the shaft D I key a return
tube E which slips easily over the centre tube A. On the bottom end of this tube E
I cast or otherwise secure a collar F Figure 3 which I make preferably in the shape
of an internal cone. Over the centre casing E I slide a loose collar G also in the
form of an internal cone. The projecting arms H H, are flanged at their inner
extremities in such a manner that when the ends of all the arms H, H are held against
the centre casing E they form a double cone as shewn at I I. J J Figures 1 and 3,
I fit the bottom cone J J formed by the arms into the internal cone in the fixed
collar F and then lower the top collar G, over the upper cone II formed by the
arms. These collars F and GI then tighten up upon the arms H, by means of
suitable bolts K. By this means I fix the arms securely to the shaft D in a
simple and efficient manner and which admits of easy removal when required. I
make the projecting arms H preferably wedge-shaped, the thin end being in the
direction of revolution. On the arms H, I cast lugs or flanges, and bolt thereto
vertical dash plates or knives L L of wrought iron or steel. I fix these dash plates

page_text: at different suitable angles see Figure 2 so as to give the necessary violent motion
to the contents of the Blunger. Slot holes in the dash plates admit of their being
lowered to take up wear. I would have it distinctly understood that I do not bind
myself to the exact details of construction herein described and illustrated as the
same may be modified to suit varying circumstances without departing from the
essential features of my invention.
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.
The arrangement of the arms of a Blunger substantially as described and
illustrated