An Improved Machine or Apparatus for Moulding or Ornamenting Flower Pots, Vases, or other similar Articles of Clay or other Plastic Material.
Year: 1894

page_text: Date of Application, 15th Nov., 1894
Complete Specification .Left, 14th Aug., 1895-Accepted, 12th Oct., 1895
PROVISIONAL SPECIFICATION.
An Improved Machine or Apparatus for Moulding or Ornamenting
Flower Pots, Vases, or other similar Articles of Clay or other
Plastic Material.
I, JOHN JAMES SLACK of 2 Ladygrove Cottages, Osmaston Road, Derby in the
County of Derby, Mechanic, do hereby declare the nature of this invention to be
as follows:-
The object of my invention is to provide an improved machine or apparatus for
moulding or ornamenting flower pots, vases or other similar articles of clay or
other plastic material. In carrying out my said invention I construct a suitable
framework and mount thereon a base or pedestal internally bored or otherwise
formed to receive a stationary face-plate mounted upon a spindle, this face-plate
carries a moulding box the sides of which consist of expanding jaws or sections:
the said base or pedestal may be fixed by means of a set screw or other device in
any required position, horizontally: between the aforesaid face-plate and the upper
portion of the base or pedestal and revolving loosely upon the spindle which carries
the face plate, I place a suitably shaped block carrying on its upper face a mitre
wheel adapted to engage with pinions operating, by means of threaded spindles, the
jaws carrying the dies, the said jaws being mounted upon the said threaded spindles
and moving radially backwards and forwards as the block carrying the mitre
wheel is revolved in either direction by means of handles or the like.
Through the base or pedestal I pass a vertical rack terminating in a bed plate
upon which the flower pot or other vessel is placed, this rack is operated by means
pinion with spindle and handle or wheel, as will be understood, to raise or
lower the bed plate and flower pot or other vessel as desired.
ol A
At the side of the frame I mount in a slot an arm or bracket adapted to move
backwards and forwards by means of a rack or other suitable device.
"thrown
The apparatus is operated as follows:-The jaws which form the sides of the
moulding box are opened by giving a backward turn to the block carrying the
mitre wheel, it being understood that any suitable dies are carried by the said jaws
the dies being interchangeable, the flower pot or other vessel having been first
upon a potter's wheel, or otherwise suitably formed, is placed upon the
bed plate and an internal die, block or spigot placed inside the said flower pot or
other vessel to keep it in shape and a cover or cap clamped or otherwise secured
over the moulding box to keep in the clay when pressure is brought to bear upon
it, the said internal die, block or spigot is pressed down in position by means of a
vertical threaded rod passing through the head of the bracket or arm and operated
by a wheel or other device, the block carrying the mitre wheel is also revolved in
an opposite or forward direction and the jaws carrying the dies close in and impress
any given pattern or mould any given shape to the sides of the flower pot or other
vessel; after which the pressure is released from the internal die or spigot the
bracket or arm is drawn back, the block carrying the mitre wheel is revolved in a
backward direction until the jaws recede, then the rack is operated from below, the
Hower pot or other vessel raised, the internal die or spigot released and the
pparatus is ready for the reception of another flower pot or other vessel.

page_text: It is evident that any suitable form of external and internal die may be used for
ots of different shape such as round, oval, hexagonal or the like.
Dated this 14th day of November 1894.
W. SWINDELL,
Agent for the Applicant.
An Improved Machine or Apparatus for Moulding or Ornamenting
Flower Pots, Vases, or other similar Articles of Clay or other
Plastic Material.
I, JOHN JAMES SLACK of 3 Melbourne Terrace, Taylor Street, Osmaston, in
the County of Derby, Mechanic, do hereby declare the nature of this invention
and in what mariner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
The object of my invention is to provide an improved machine or apparatus for
moulding or ornamenting flower-pots, vases or other similar articles or vessels of
clay or other plastic material.
In describing my invention reference will be had to the accompanying sheets of
drawings, it will however be seen that all the parts are not shewn upon every
view; some being omitted for the sake of avoiding confusion or unnecessary
repitition.
Figure 1 is a side elevation or general view of my improved machine or
apparatus.
Figure 2 is a sectional plan on line " a. a." of Figure 3.
Figure 3 is a vertical section on line "b." "b." of Figures 2, 4 and 5.
Figure 4 is a plan on line "e." "c." of Figure 3.
Figure 5 is a plan shewing the parts of the top plate of the moulding box as
will be hereinafter explained.
Figures 2, 3, 4 and 5 are drawn to a slightly larger scale than Figure 1.
In carrying out my said invention I construct a suitable framework A and mount
thereon a base or pedestal B internally bored or otherwise suitably formed to
receive the spindle C of the stationary face-plate D, this face-plate carries a
moulding box, the sides of which consist of expanding jaws or sections E working
in slides 11: the said base or pedestal may be fixed by means of a set screw F, or
other device, in any required position horizontally between the aforesaid face
plate D and the upper portion of the base or pedestal B and revolving loosely
upon the spindle C, I place a suitably shaped block G carrying on its upper edge
a mitre wheel H adapted to engage with pinions Joperating by means of threaded
spindies K, the jaws E carrying the die-plates L, the said jaws being provided
with internally threaded collars M encircling the said threaded spindles and
moving radially backwards and forwards in slots in the face plate D as the block
carrying the mitre wheel H is revolved in either direction by means of handles or
the like; the threaded spindles are kept in position by means of pins 12 engaging
annular grooves therein as shewn upon Figure 2.
Through the base or pedestal B and spindle C passes a vertical rod N carrying
a rack and terminating in or having fixed loosely upon it a bed plate P at the
top, upon which the flower pot or other vessel is placed, the rack is operated by
means of a pinion Q with spindle R and handle S, or wheel, as will be understood,
to raise or lower the bed plate and flower pot or other vessel as desired.
At the side or back of the frame 1 mount in a slot an arm or bracket T adapted
to move backwards and forwards by means of a rack and pinion or other suitable
device, the said arm carrying a vertical threaded rod V the operation of which will
be hereinafter explained.

page_text: Inside the moulding box is arranged an internal die-block, spigot or device for
pressing the clay or other plastic material well into the die-plates L, this internal
die or device consists of a tapering inner casing W carrying a central rod 9 and
outside of which is another casing in sections X overlapping or jointed with each
other, as seen in Figure 4, and also a sheet of copper or the like Y to each section
to cover the joints therein when expanded as hereinafter explained. Each of the
sections X has an arm Z attached thereto passing inwards through a slot in the
inner casing W so that when pressure is brought to bear upon a plunger 1
the sections X are caused to expand and take a position as shewn by dotted line 2.
When the pressure on the plunger is released it is caused to return to its normal
position by the recoil of spring 3 and sections X are drawn back by springs 4
secured to brackets 5 on the inner casing W, or by encircling rubber rings 6.
This internal die-block, spigot or device is provided with an expanding cover 7 in
sections, each of which is secured to one of the sections X so that it will open and
close therewith.
The apparatus is operated as follows:-The jaws E which form the sides of the
moulding box are opened by giving a backward turn to the block G carrying the.
mitre wheel H, it being understood that any suitable die-plates L are carried by
the said jaws, the dies being interchangeable and screwed or otherwise fixed to the
jaws; the flower-pot or other vessel having been first “thrown upon a potters
wheel, or otherwise suitably formed, it is placed upon the bed plate P and the
internal die-block or spigot placed inside the said flower pot or other vessel to keep
it in shape and press the clay or other plastic substance well into the die-plates L
a cover 8 is clamped or otherwise secured over the moulding box to keep in the
clay when pressure is brought to bear upon it, the sections X of the said internal
die-block or spigot are caused to expand, as already explained, by means of the
plunger 1 operated by the vertical threaded rod V passing through the head of the
bracket or arm T and operated by a wheel or other device, the block carrying
the mitre wheel being first revolved in a forward direction and the jaws carrying
the die-plates closed in and forming the moulding box: thus any given pattern or
mould may be impressed or formed on the sides of the flower pot or other vessel
which fits in the space 10. The pressure is then released from the plunger of the
internal die-block or spigot, the bracket or arm T is drawn back, the block
carrying the mitre wheel is revolved in a backward direction opening the jaws E, then
the rack O is operated from below, the flower pot or other vessel being thus raised,
nd the internal die-block or spigot taken therefrom; the apparatus is then ready
or the reception of another flower pot, vase or other vessel.
It is evident that any suitable form of external and internal die may be used for
pots, vases, cups or other vessels of different shape such as round, oval, hexagonal
or the like: for instance the face-plate upon Figure 2 is shewn slotted for a
moulding box of either four or eight sections, the four sections upon the drawings
carrying die-plates for a round Hower-pot or vase as will be seen.
The arm or
bracket T may if desired be pivotted instead of being in a slide, suitable stops in
either case being provided, such as 13 upou Figure I, to stop the threaded rod V
in a central position.
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 :-
1. In a machine or apparatus for moulding or ornamenting flower-pots, vases or
other similar articles of clay or other plastic material a slotted, recessed,
stationary face-plate D in combination with a mitre wheel H capable of being
revolved and engaging pinions J operating threaded spindles K adapted to move
the jaws E forming, or carrying die-plates L forming the sides of the moulding
box, radially to and fro substantially as described and illustrated.
2. The internal die-block, spigot or device consisting of an inner slotted
casing W with central rod 9, outer casing jointed in sections or segments X with

page_text: arms Z, the said segments or sections being arranged to expand or contract
according to the pressure applied to or released from the plunger 1, springs 3
and 4, brackets 5 and expanding cover 7 substantially as and for the purposes
described and illustrated.
3. A face plate D, mitre wheel H and block G, pinions J, threaded spindles K,
movable jaws E with internally threaded collars M and die plates L, in
combination with internal die-block or spigot with its parts and plunger 1, cover
or cap 8, vertical rod N with rack O, pinion Q, bed plate P, vertical threaded
red V and arm or bracket T substantially as and for the purposes described and
illustrated.
4. The whole substantially as and for the purposes described and illustrated.
Dated this 13th day of August 1895.
W. SWINDELL,
Agent for the Applicant.