IMPROVEMENTS IN APPARATUS FOR PREPARING MOULDS FOR THE CASTING OF PIPES, CYLINDERS, PILLARS, ROLLERS, AND OTHER FORMS
Year: 1867

page_text: Sealed the 4th February 1868, and dated the 8th August 1867.
PROVISIONAL SPECIFICATION left by the said Charles Benson and
Joseph Barker at the Office of the Commissioners of Patents, with their
Petition, on the 8th August 1867.
We, CHARLES BENSON, of Leeds, in the County of York, Ironfounder, and
JOSEPH BARKER, of Forster Street, Hunslet, near the said Leeds, Moulder,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
APPARATUS FOR PREPARING MOULDS FOR THE CASTING OF PIPES, CYLINDERS,
PILLARS, ROLLERS, AND OTHER FORMS," to be as follows:-
The object of the improvements is to facilitate the preparation of moulds for.
objects of different forms and sizes. For this purpose the model of the
intended pipe or other object is supported horizontally upon moveable and
adjustable bearings, by which such model may be raised in order that so much
of it as may be desired may be held projecting above the line of a table formed
in two or more parts, which may be moved up so as to bear on the opposite

page_text: surfaces of the mould, leaving only so much of it above the table as may be
required for the time to be moulded; the parts of 'this table are capable of
sliding horizontally on guides, and they are moved to and fro by hand or by
screws, or racks and pinions, or by other suitable means, so that they may be
adjustable for receiving between them models of different sizes. The parts of
the table are provided with recesses or openings, through which may rise
guides operated by racks and pinions, or otherwise, to retain the mould boxes
in position, or such or other recesses or openings may serve to receive parts of
the mould boxes. The guides may be held in position when raised by pins or
studs. When the desired model has been placed in position between the
parts of the table the parts of the table are slided close up to it; the mould
box is then placed in position on the table, and the sand is rammed in in the
ordinary way; when this has been done to the extent desired the model is
allowed to drop from the sand by actuating eccentric or other motion to the
bearings of it; the box may then be turned over, when it will have the mould
of the part of the model which projected above the surface of the table formed
in it. In the case of pipès, columns, or other forms which could not be con-
veniently moulded or fixed on the body of the model with flanges or other
projections, the moulds of these parts may be laid on the main part or body of
the mould in portions corresponding with that portion of the model which
projects above the surface of the table, and when the ramming in of the sand
is complete, and the mould box is turned over, these parts may be separately
removed from the sand mould by tapping to loosen them in the usual way;
or if such flange or parts are fixed to the model and continue below the
surface of the table the parts of the table may be formed to suit.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Benson and Joseph Barker in the Great Seal Patent
Office on the 8th February 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, CHARLES.
BENSON, of Leeds, in the County of York, Ironfounder; and JOSEPH BARKER, 3
of Forster Street, Hunslet, near the said Leeds, Moulder, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of August, in the year of our Lord One
thousand eight hundred and sixty-seven, in the thirty-first. year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the 3
said Charles Benson and Josephi Barker, Her special licence that we, the said

page_text: Charles Benson and Joseph Barker, our executors, administrators, and assigns,
or such others as we, the said Charles Benson and Joseph Barker, our
executors, administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend, within
the United Kingdom of Great Britain and Ireland, the Channel Islands, and;
Isle of Man, an Invention for "IMPROVEMENTS IN APPARATUS FOR PREPARING
MOULDS FOR THE CASTING OF PIPES, CYLINDERS, PILLARS, ROLLERS, AND OTHER
FORMS," upon the condition (amongst others) that we, the said Charles Benson
and Joseph Barker, our executors or administrators, by an instrument in.
writing under our or their hands and seals, or under the hand and seal of one
of us or them, should particularly describe and ascertain the nature of the said
Invention, and in what manner the same was to be performed, and, cause the
same to be filed in the Great Seal Patent Office within six, calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said Charles Benson and Joseph Barker,.
do hereby declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in and.
by the following statement thereof, that is to say :-
The object of the improvements is to facilitate the preparation of moulds.
for objects of different forms and sizes. For this purpose, the model of thút
intended pipe or other object is supported horizontally upon moveable and.
adjustable bearings, by which such model may be raised in order that so much,
of it as may be desired may be held projecting above the line of a table:
formed in two or more parts, which may be moved up so as to bear on the
opposite surfaces of the mould, leaving only so much of it above the table as
may be required for the time to be moulded. The parts of this table are.
capable of sliding horizontally on guides, and they are moved to and fro by.
hand or by screws, or racks and pinions, or by other suitable means, so that,
they may be adjustable for receiving between them models of different sizes..
The parts of the table are provided with recesses or openings through which
may rise guides operated by racks and pinions, or otherwise to retain the
mould boxes in position, or such or other recesses or openings may serve to.
receive parts of the mould boxes. The guides may be beld in position when
raised by pins or studs. When the desired model has been placed in position
between the parts of the table the parts of the table are slided close up to it,
the mould box is then placed in position on the table and the sand is rammed,
in in the ordinary way; when this has been done to the extent desired the
model, is allowed to drop from the sand by actuating eccentric or other motion

page_text: the Sam CO CHICCO
DESCRIPTION OF THE DRAWINGS.
Figure 1 represents a plan view, Figure 2, a, side view, and Figure 3 an
end view of apparatus arranged according to our Invention. In each of the
views the same letters indicate corresponding parts whereever they occur.
a, a, is the main framing; b, b, the parts of the table, and ca model from
which the moulds are to be obtained; d, d, are shafts, which are supported in
bearings carried by the main framing a, as shewn, and upon which are fixed
pinions e, e, the teeth of which take into the teeth of racks formed on or
applied to the under side of the portions of the table b, b, so that by turning
the shafts d, d, in one or the other direction the portions of the table b, b, may
be caused to approach to or recede from the centre of the apparatus, as may
be required, and to facilitate this operation the under sides of the table b, b, are
formed with V projections 6' to slide in corresponding grooves a¹ carried by
the main framing. The turning of the shafts d, d, is effected by means of the
handle wheels d¹, d', affixed thereon. f is another shaft, which is also supported
with capability of its revolving freely in bearings carried by the main framing
and upon
which are fixed pinions g, g, the teeth of which take into the teeth
of racks carried by the frames h, h, which are capable of sliding vertically in
vertical guides a² affixed to the main framing a, and upon which rest the lower
ends of the guides i. These guides are capable of sliding vertically in openings
formed for them, as shewn in the table b, b, and their object is, when they are
raised above the surface of the table to aid in holding the moulding boxes
correctly in their place, as is indicated by the blue dotted lines of the Drawings.
The shaft is turned by means of a lever handle f¹ applied thereon. The
grooves are adapted to receive the beads of bolts by which loose guides may
be bolted to the table for use when the articles to be moulded require shorter
boxes. jis another shaft, which is supported-with capability of revolving in
bearings formed for it in the main framing. This shaft has applied to it the
cam or tappet formed surfaces k, k, upon which rest the trucks or bowls 1, 1,
of the slides m, which are capable of sliding vertically in guides on the main
framing and carry the cushions or cradles n, n; upon which rests the model c,
so that by turning the shaft or axis the model may be raised-or lowered as

page_text: desired; the turning of the shaft j for this purpose is effected by means of
the handle affixed thereon...
>
In proceeding to operaté according to these improvements the model is
placed on the cushions or cradles n and raised, so that one-half or portion of
it projects above the surface of the table b; the parts of the table bare then
moved by their shafts d, so that their inner edges may touch the side surfaces
of the model when one-half of the box will be placed in position on the table.
The halves of the mould boxes are formed one with projections and the other
with recesses to receive those projections, and according to the arrangement
shewn the projections i, when they are standing above the table, as shown,
are adapted to pass into the recesses of the one-half of the mould box, and
when the sand has been filled in and rammed up around the model to the
extent desired in the one-half of the mould box, the, modle is lowered by
turning the shaft or axis j, so as to free it somewhat from, the sand in that
portion of the box, and that half mould box with the sand moulded therein
being removed the model is again raised into position, and the other half of
the mould box is placed in position on the table, but in this case the projec-
tions i, i, are allowed to pass downwards and leave the upper portion of the
recesses in which they slide free to receive the projections from the other half
of the mould box; this other half of the mould box is then filled with sand
and rammed up, and the operations are repeated as may be desired. By these
means the necessity for lifting the pattern out of the box or the using of
parting sand is avoided. In the case of pipes, columns, or other forms which
could not be conveniently moulded or fixed on the body of the model with
flanges or other projections the moulds of these parts may be laid on the main
part or body of the mould in portions corresponding with that portion of the
model which projects above the surface of the table, and when the ramming
in of the sand is complete, and the mould box is turned over these parts may
be separately removed from the sand mould by tapping to loosen them in the
usual way; or if such .flange or parts are fixed to the model, and continue
below the surface of the table, the parts of the table may be formed to suit.
For pipes, pillars, and other taper forms separate pieces may be bolted or
otherwise secured to the inside edges of the table, or such pieces or plates
may be applied to the upper surface of each part table so as to turn on a
5 centre at one end of each, and be fixed by set screws or otherwise through
segmental slots near the other end, by which adjustments of taper may bo
obtained adapted to the required changes.
Having thus described our Invention, and means which we adopt in carrying
the same into effect, we would have it understood that we do not confine our-

page_text: selves to the precise arrangements of parts and mode of working shown and
described, so long as the peculiar character of the Invention be retained as
explained; but what we do claim is, the adaptation or combination of means
for preparing moulds for the casting of pipes, cylinders, pillars, rollers, and
other forms, substantially as described.
In witness whereof, we, the said Charles Benson and Joseph Barker,
have hereunto set our hands and seals, this Seventh day of February,
in the year of our Lord One thousand eight hundred and sixty-eight.
CHARLES BENSON. (L.S.)
JOSEPH BARKER.
(L.S.)