Year: 1886

page_text: We AMBROSE EDMUND BUTLER and HUGH MYDDLETON BUTLER of Kirkstall
Forge near Leeds in the County of York, Iron Manufacturers do hereby declare the
nature of this invention to be as follows:-
In moulding deep or long patterns and where mechanical means or pressure is
employed, it is found, generally that the sand is not in a sufficiently compressed
state throughout the mould, and the object of our invention, is to obviate this.
We employ a moulding box of a suitable construction, to contain the proper
quantity of sand for the mould when in its loose state.
The box having received the sand, the pattern is forced into it by the direct
action of an bydraulic ram or other suitable
e means.
J
As soon as the nose of the pattern enters the sand, the process of compression
commences and, as the forward movement is continued the pattern by pushing the
sand forward in various directions causes the compression to be equally distributed,
and by the time the whole pattern becomes embedded in the sand, the necessary
degree of compression is nearly attained around the forward parts of the pattern;
the forward movement is however continued and by having a plate fitted round
the base of the pattern and of the same size as the inside of the moulding box, the
sand is pushed forward, thus completing the process of compression.
The pattern is, then withdrawn, the above mentioned plate being meanwhile
held back by suitable means, so as to prevent any disruption of the mould.
Where it is found that the compression produced is not sufficient in all parts of
the mould, we introduce an additional ram or other compressing apparatus at the
opposite end of the box or others in various directions to produce the desired
effect. This combination of two or more compressing agents is applicable generally
to mechanical moulding.
4.2
i

page_text: We, AMBROSE EDMUND BUTLER and HUGH MYDDLETON BUTLER of Kirkstall
Forge near Leeds in the County of York, Iron Manufacturers 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 :—
In moulding deep or long patterns and where mechanical means or pressure is 5
employed, it is found generally that the sand is not in a sufficiently compressed
state throughout the mould and the object of our invention is to obviate this.
Fig. 1 18 & Bide elevation showing apparatus we employ in our improvements
mechanical moulding. Fig. 2 is a transverse section shewing an enlarged view of
part of apparatus.
For the above purpose we provide the upright standard a having a hydraulic
cylinder 6 and bearing a
Within this bearing o is fitted so as to slide freely the ram d, at the lower end of
which is attached the pattern e to be moulded.
In the hydraulic cylinder b is provided a ram fon which rests the moulding
box g of any desired form with its upper loose part g¹ for containing the required
amount of sand when in its loose state.
The boxes g and g¹ having received the sand the pattern e attached to the upper
ram d is caused to move downwards by the attendant through the medium of the
hand wheel h and pinion j, acting upon a rack k attached to the upper ram d, or
the ram d may be operated by hydraulic or other means.
The pattern e by this means is forced into the sand.
As soon as the nose 1 of the pattern o enters the sand the process of compression
commences and as the forward movement is continued the pattern by pushing the
sand forward in various directions causes the compression to be equally distributed
and by the time the whole pattern becomes embedded in the sand, the necessary
degree of compression is nearly, attained around the forward parts of the pattern.
The ram d is then fixed by the set screw d¹ and the key d³, or by any other
convenient means.
. The upward movement of the hydraulic ram fis now commenced and by having
a loose plate m shewn at Fig. 2 fitted round the base of the pattern and of the
same size as the inside of the boxes g and g³, the sand is pushed forward and the
process of compression completed.
is
The pattern e is then withdrawn and the ram allowed to fall, the above-
mentioned plate m being held down against the sand by the spiral spring n for a
suitable distance of the upward movement of the ram d so as to prevent any
disruption of the mould, but the plate m is afterwards relieved by the studs o
coming in contact with the ends of the slot holes p in the vertical sides q of the
plate m and carried upwards by the ram d.

page_text: The rams & and ƒ may be employed in combination as shown in the drawings or
either one or the other may be dispensed with.
The ranis & and f may be operated by hydraulic or other means or pressure, also
rams to impart the desired pressure may be arranged so as to be applicable at any
desired angle.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is-
1st. The process of moulding deep or long patterns by forcing the pattern into
the sand, thereby compressing such sand in any or all directions to the required
extent and forming the mould, substantially as herein set forth.
2nd. The arrangement of moulding box g with its second or loose box g¹ for
containing the required amount of sand when in a non-compressed or loose state,
applied in connection with the moulding process, substantially as herein set forth.
3rd. The combination of two or more compressing rams, operated by hand,
hydraulic or other means for bringing the required pressure to bear on the sand in
any direction, substantially as and for the purposes herein set forth.
4th. The arrangement, construction and application of loose plate m and parts
connected therewith, substantially as and for the purposes herein set forth.
Dated this 19th day of November 1886.
J. W. HARDING,
For the Applicants.