IMPROVEMENTS IN APPARATUS FOR MAKING MOULDS FOR CASTING METALS
Year: 1856

page_text: LETTERS PATENT to Robert Jobson, of Wordsley, in the County of
Stafford, Ironfounder, for the Invention of "IMPROVEMENTS IN APPARATUS
FOR MAKING MOULDS FOR CASTING METALS."
Sealed the 30th September 1856, and dated the 31st May 1856.
PROVISIONAL SPECIFICATION left by the said Robert Jobson at the
Office of the Commissioners of Patents, with his Petition, on the 31st
May 1856.
I, ROBERT JOBSON, of Wordsley, in the County of Stafford, Ironfounder.
do hereby declare the nature of the Invention for "IMPROVEMENTS IN APPARATUS
FOR MAKING MOULDS FOR CASTING METALS," to be as follows:-
This Invention has for its object a peculiar combination of apparatus to
facilitate the making of moulds for casting metals, with a view to render it
unnecessary that the workman should turn over the flasks or boxes by band:
For these purposes the apparatus is so arranged that the flask or box in which
a mould is to. be made is fixed to a horizontal platform or bed plate, which is
mounted on horizontal necks or axes. The box or flask having been'fixed to
the horizontal plate or platform, the ramming is to be performed in the
ordinary manner; and then, in place of the workman lifting and turning the
flask or box over by hand, which is a very laborious task when the flask or
box and pattern are large and heavy, the plate or horizontal platform is
caused, by a suitable crank handle, or otherwise, to be turned over, so that the

page_text: upper surface of the horizontal plate or platform comes undermost. A second
plate or platform is then raised so as to come under the flask or box and
mould therein. This second platform is then lowered with the flask or box
and mould; the pattern either remaining in the mould, or else being secured
to the rotating platform, is retained thereto to have another mould formed
thereon.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Robert Jobson in the Great Seal Patent Office on the
29th November 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
JOBSON, of Wordsley, in the County of Stafford, Ironfounder, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirty-first day of May, in the year of our Lord One
thousand eight hundred and fifty-six, in the nineteenth year of Her reign, lid,
for Herself, Her heirs and successors, give and grant unto me, the said Robert
Jobson, Her special licence that I, the said Robert Jobson, my executors,
administrators, and assigns, or such others as I, the said Robert Jobson, my
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 MAKING
MOULDS FOR CASTING METALS," upon the condition (amongst others) that I,
the said Robert Jobson, my exccutors or administrators, by an instrument in
writing under my, or their, or one of their hands and seals, 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 I, the said Robert Jobson, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
:
This Invention has for its object a peculiar combination of apparatus to
facilitate the making of moulds for casting metals, with a view to render it
unnecessary that the workman should turn over the flasks or boxes by hand.

page_text: For these purposes the apparatus is so arranged that the flask or box in which
a mould is to be made is fixed to a horizontal platform or bed plate, which is
mounted on horizontal necks or axes. The box or flask having been fixed to
the horizontal plate or platform, the ramming is to be performed in the
ordinary manner; and then, in place of the workmen lifting and turning the
flask or box over by hand, which is a very laborious task when the flask or
box and pattern are large and heavy, the plate or horizontal platform is
caused by a suitable crank handle, or otherwise, to be turned over, so that
the upper surface of the horizontal plate or platform comes undermost.
second plate or platform is then raised, so as to come under the flask or box
and mould therein. This second platform is then lowered with the flask or
box and mould; the pattern, either remaining in the mould, or else being
secured to the rotating platform, is retained thereto to have another mould
formed thereon.
A
Ilaving thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.
DESCRIPTION OF THE DRAWING.
Figure 1 shows a front elevation of the machinery combined according to
my Invention; Figure 2 shows a side elevation; and Figure 3, a horizontal
section. In each of these Figures the same letters of reference are used to.
indicate the same parts.
a, a, is the framing of the machine, the nature of which is clearly shewn in
the Drawing; b is the bed, moving or necks or axes 6, 6, which turn in
suitable bearings, as shown. It is preferred that this bed b should consist
of a rectangular open frame b, with an inner flange all round, to which an
upper plate is fixed, and which may be changed according to the work
intended for the time being to be performed thereon; but the plate or upper
surface of the bed b may forin part with the frame, which is carried by the
axes or necks b'. On the plate thus fixed to or forming part of the bed the
pattern of the intended casting is placed, and when desired, fixed thereon;
the flask or box in which a mould is to be made is also placed thereon, and
retained by suitable latches or holding apparatus; the sand is then rammed.
in the flask or box in the ordinary manner, and when complete the flask is to be
turned over by a half revolution of the bed b, and it is the mounting of the
bed b, whether formed with a fixed or moveable upper plate, which constitutes
the peculiarity of my Invention. And I would state that I am aware that it
has heretofore been the practice to have necks or axes on the mould boxes or
flasks used, and to turn the same over thereon after the mould has been

page_text: completed therein; and I mention this fact in order to state that I do not
make any claim to the so mounting of flasks or boxes on axes or necks, as
the same is an inconvenient arrangement. I would, however, here state that
my Invention is directed to the remedying of such inconvenience, and which is
most effectually accomplished by placing the bed or plate b, (on which the flask
or box is placed,) on axes or necks, so that when the mould has been made in
the flask or box, the same may, with the table b, be turned over, the flask or
box with the mould therein may then be readily detached from the bed b, and
be received on to a second table or plate below, the pattern remaining fixed to
the bed or remaining in the mould, according as the pattern is or is not fixed
to the revolving bed b. The bed b may be then caused to resume its original
position, another box or flask may be placed thereon, and another mould
proceeded with. The arrangement for retaining the revolving bed or plate b
in position and for turning it over may be varied, but I prefer to use the
machinery shewn in the Drawing. c, c, are two projecting. stops, one at each
end of the bed b; these projections prevent the bed going beyond the horizontal
position when making the mould thereon, and also when the bed b is turned
over to have the mould and flask detached; the axes or necks b', where they
turn in their bearings, are of comparative large diameter, as shewn, and in order
to apply counterbalance weights 6', 6', there are projections 62 at the ends of the
axes b', which receive arms with the counterbalances *, as shewn. In order
to receive the mould box or flask and mould therein when they are turned
over with the bed b, I prefer to use a rising platform or plate d, which is
guided by the end framing, as shewn. e, e, are cords or chains having balance
weights f. f, fixed thereto, according to the weight of the boxes or flasks and
moulds to be received on to the platform or plated. The platform or plate d
is raised by means of a lever g on the axis h, which, by means of the arms i, i,
and links j,j, raise the plate or platform d under the top of the flask or box
when it has been turned over; the latches or holding apparatus by which the
flask or box is held to the bed 6 are then released, the platform or plate d is
then lowered with the flask thereon; the bed b is turned over, and is then
again in position to receive another flask or box. The bed bis turned over by
means of a handle fixed to the front of the bed b, and I generally fix a plate
over the top of the flask or box before turning it over to prevent the mould
being injured.
1 would remark that I make no claim to the use of a rising plate or
platform d, and the same may be dispensed with by having the machine
arranged in such manner that the bed b, in addition to turning on axes or
necks, may, when it is turned over, descend towards the ground, in order to

page_text: deposit the flask or box on to the floor, or on to a truck placed below to
receive it.
Having thus described the nature of my Invention, and the manner of
performing the same, I would have it understood that I make no claim to the
mechanical parts separately; but what I do claim is, tho combining the parts
of a machine in such manner that the bed or plate on which the flask or
mould box is placed may be mounted on necks or axes, and admit of being
worked, as herein described.
hand
In witness whereof, I, the said Robert Jobson, have hereunto set my
and scal, this Twenty-eighth day of November, in the year of our Lord
One thousand eight hundred and fifty-six.
Witness,
GEO. PITT,
24, Southampton Buildings.
ROB. JOBSON. (L.S.)