IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING ARTICLES IN POTTERY
Year: 1877

page_text: LETTERS PATENT to William Boulton, of Providence Foundry, Burslem, in
the County of Stafford, Engineer, for the Invention of "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR MAKING ARTICLES IN POTTERY."
PROVISIONAL SPECIFICATION left by the said William Boulton at the
Office of the Commissioners of Patents on the 28th February 1877.
WILLIAM BOULTON, of Providence Foundry, Burslem, in the County of Stafford,
Engineer. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING ARTICLES
IN POTTERY."
This Invention which relates to improvements in machinery or apparatus for.
making articles in pottery has especial reference to improved modes of adjusting the
shaping "profiles" of the "jolleys" and of bringing them into contact with the
plastic material being formed, and to improved means of actuating and using the
revolving profiles.
The ordinary profiles as hitherto used are brought into contact with the plastic
material being treated by hand. In lieu of this inode I connect the profile to one
end of a lever, the other end of which is placed in one of two or more holes or
recesses formed in the face of a centre piece pivotted in a frame carried by a socket
frame, the rear of the frame carrying a counterbalance weight. A depending rod
connects the lever with a treadle. The recesses in the centre piece allow of the
profiles being readily centred or adjusted in conformity with the shape required,
the levers being moved from one recess to another, and they also allow of a profile.
of one shape being quickly substituted for a profile of another shape.
For outside profiles, I make the centre piece higher and with a more extended
series of recesses, so that the profile shall deliver correctly from the article, being
brought into contact in an oblique or vertical direction to suit the shape of the article
being made. Or the profiles (of any required number) may be brought into position
horizontally on one or more sides of the article if required. In this modification the
centre pieces are carried by shafts vertically in the socket frames, and the horizontal
motion is given to the profile levers by means of under levers connected to the said
shafts and actuated by a rod.

page_text: In forming oval, oblong, or semi-globular shapes, I use a bottom mould which
moves in a groove or slot to suit the shape required, and also a revolving profile
carried by a shaft to which motion is imparted by a cord and pulley, the parts being
carried by a suitable frame, and the profile being brought down to form the article
by means of a treadle arrangement as above described.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Boulton in the Great Seal Patent Office on the 27th August
1877.
WILLIAM BOULTON, of Providence Foundry, Burslem, in the County of Stafford,
Engineer. "IMPROVEMENTS IN MACHINERY OR APPARATUS FOR MAKING ARTICLES
IN POTTERY."
This Invention which relates to improvements in machinery or apparatus for
making articles in pottery ware, and is illustrated in Figures 1 to 12 on the accom-
panying Sheet of Drawings, has especial reference to improved modes of adjusting
the shaping "profiles" of the "jolleys " and of bringing them into contact with the
plastic material being formed, and to the use of an improved means of actuating
revolving profiles.
The ordinary profiles as hitherto used are brought into contact with the plastic
material being treated by hand. In lieu of this mode I connect the profile 1 to one
end of a lever 2 (see Figures 1 and 2, respectively a side view and an end view, in
which the profile is shown as being used for forming ordinary cups 22), the other
end of which is placed in one of two or more holes or recesses 3, formed in the face
of a centre piece 4, pivotted in a frame 5, carried by a socket frame 6, the rear of the
centre piece 4 carrying a counter balance weight 7. A. depending rod 8 connects
the lever 2 with a treadle 9 pivotted to a brackett 10, and which enables the profile
1 to be brought into contact with the plastic material being treated by the agency
of the foot instead of by hand as hitherto. The recesses 3 in the centre piece 4
allow of the profiles being readily centred or adjusted in conformity with the shape
required, the levers 2 being moved from one recess to another, and they also allow
of a profile of one shape being quickly substituted for a profile of another shape.
I
For outside profiles, such as those required for insulators and outside made cups,
which require this mode of operation, I make the centre piece 4 higher and with a
more extended series of recesses 3 (see Figures 3 and 4, which are respectively a
side view and an end view), so that the profile 1 (which in these Figures is shown
as being used for forming outside made cups or bowls 23), shall deliver correctly
from the article; being brought into contact in an oblique or vertical direction to
suit the shape of the article being made; or the profiles may be brought into posi-
tion horizontally (see Figures 5 and 6, which are respectively a plan view and a side
view) on one or more sides of the article if required. In, this modification the centre
pieces 4 are carried by shafts 11, working vertically in the socket frames 6, and the
required horizontal motion is given to the profile levers 2 by means of under levers
12 connected to the shafts 11, and actuated by a vertical rod 13. (In these Figures
the profiles are shown as being used for forming insulators 24.) The insulators may
be made the other way up, with an inside profile instead of an outside one, the lever
carrying it being arranged to work vertically as above described.
In forming oval, oblong, semi-globular, or such like shapes or flat bats for plates
and saucers, I use a bottom mould 14 (see Figures 7 and 8, respectively a side
view and a plan view), which moves in a groove or slot of the required shape in a
bed plate or in the bench 38, and also a revolving profile 15, carried by a shaft 16,
to which motion is imparted by a cord and pulley 17, the parts being carried by a
suitable frame 18, and the profile being brought down to form the article by means
of the treadle arrangement 8, 9, and 10, above described, the rod 8 connecting the
treadle 9 with a lever 19, centred at 20, and connected at 21 to the shaft 16.

page_text: In another modification, illustrated in Figures 9, 10, 11, and 12, which are respec-
tively a plan view, end views, and a side view, I use cams or eccentrics to bring down
the profile or rubber to rub down the bats on the mould by power, by means
of worm wheel straps, round band, friction pulleys, or other gearing. 25 represents
a cam, and 26 a rod having a spring 27 attached to it to bring down the lever
carrying the profile. The shape of the cam may be varied to suit the form of the
article to be made. The cam derives its motion from a shaft 28, on which it is, and
which is rotated by a worm wheel 29, actuated by a worm 30, on an upright spindle
31, carrying the driving pulley 32; and as the wheel 29 revolves a stud pin 33,
which it carries, moves a lever 34, which carries the rubber 35 backwards over the
face of the article being treated; the bottom of the lever 34, sliding on a profile 36,
which is conformable to the shape and regulates the thickness of the article being
treated, when it gets to the full throw back, it is caused to drop the bat rubber 35
into a water trough 37, to wet it, and in its revolution the stud pin 33 raises it
up
again to come on to the next article to be made, and alternately the profile 1 is
brought down by the cam 25 to finish and give proper shape to the article.
The cam 25 may be arranged either above or below the work bench 38, and for
making the rubber which rubs down the bat I use either wood, iron, steel plates,
india-rubber, gutta percha, flannel, sponge, or any other suitable material, and I make
it of any form to suit the work to be made.
I would here remark that various other equivalent methods of bringing the pro-
files into contact with the plastic material being treated by power may be
applied.
In another modification I make the jigger frame double, with a pivot in its centre,
so that one mould with bat may be under the operation of the profile while the other
is being removed and renewed with clay.
Having now described the nature and object of my said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, I would remark in conclusion that I claim as my Invention,-
The above described improved constructions of "jolleys," to be used in the making
of various articles in pottery ware, substantially as described and as illustrated on
the accompanying Drawings.
And more especially I claim the above described improved modes of centreing or
adjusting the shaping "profiles" of the jolleys," and of bringing them and the
rubbers into contact with the plastic material being treated.
And I also claim the application to "jolleys" and the use therein of revolving profiles
which may be actuated as above described or in any other equivalent manner, and
the bringing of the profiles into contact with the plastic material being treated, by
power.
But I desire it to be understood that I do not limit myself to the strict details
of the above-described methods, as the same may obviously be varied in many
points without in the least departing from the peculiar features and principles of my
Invention.
In witness whereof, I, the said William Boulton, have hereunto set my
hand and seal, this Eighth day of August, in the year of our Lord One
thousand eight hundred and seventy caVAD
WILLIAM BOULTON. (L.S.)