Improvements in Moulding Machines.
Year: 1897

page_text: Date of Application, 6th Oct., 1897-Accepted, 20th Nov.,
1897
Improvements in Moulding Machines.
I, SIGMUND BRUNNER, trading as Brunner & Co., of 126, Mariahilferstrasse,
Vienna VII, in the Austrian Empire, Engineer, Lamp and Metal Ware Manu-
facturer, 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: -
This invention relates to moulding machines whereby a large number of moulds
for casting small articles can be quickly obtained with the aid of pattern plates,
and it has for object to provide mechanism for the raising and lowering of the
pattern plate which shall be less subject to wear and tear than the usual rack and
cog-wheel gearing employed for this purpose and means for loosening the flask
or moulding-box from the pattern-plate before raising the latter.
According to my invention, the pattern plate is raised and lowered by means of
a shaft having two cranks, connected with the bearings for the trunnions of the
pattern plate frame by links or connecting rods, the said bearings being vertically
guided by telescopic cylinders connected with the machine frame and the said
bearings. Outside the pillow blocks for the said bearings, two-armed levers are
movable round vertical pivots and these two levers connected by a link so that
they may be operated at the same time, carry wooden knockers adapted to impinge
upon the lateral edges of the pattern plate frame.
In the accompanying drawing,
Figure 1 is a front elevation:
Figure 2 an end elevation; and,
Figure 3 a plan of a moulding machine constructed according to my invention.
a, a are the pillow blocks, in which are the bearings for the trunnions, b¹, of
the frame b, the said frame being designed to hold the pattern-plates. By means
of the screws a, a' the trunnions b', 6' can be fixed in position."
The base-plates a², a² of the pillow blocks a, a are connected by the links c, e to
the cranks, on a shaft d, supported in suitable bearings in the standards f, f
secured to the base plate of the machine. The said shaft also carries a weighted
lever by means of which the pattern-plate is raised and lowered and pressed
onto the mould-flask resting on the table g, which is adapted to move on rollers,
running along the edges of two brackets or frames h, h, bolted to the main
frame j, of the machine.
In order to enable the pattern-plate frame b to move upwards and downwards
under the action of the links c, c, the base plates a² of the pillow blocks a are
vertically guided by the telescopic cylinders k, k, m, m secured to the said base
plates, and to the frames j, j, the connecting rods or links e, e being located
inside the cylinders.
'
Outside the pillow blocks a, their base plates 2 carry the pivots n' of the two-
armed levers », to which the wooden knockers o, o, o, o are adjustably secured.
Both levers are connected by a link indicated in Figure by the dotted line and

page_text: which enables both pairs of knockers to be alternately and successively worked
with one hand before raising the pattern-plate by means of the lever d³.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is:-
1. In a moulding machine, pattern-plate pillow-blocks (a), which are verti-
cally guided by means of telescopic cylinders (k, k, m, m), connected with the pillow
blocks and the machine frame, in combination with a horizontal shaft (d) provided
with cranks (, ) and connecting rods or links (c c) connecting the said cranks
to the said pillow-blocks and located inside the said telescopic cylinders, substan-
tially as, and for the purpose, described.
2. In a moulding machine, the combination with the pattern-plate pillow-
blocks (a, a), adapted to be raised and lowered of two-armed levers (n, n) moving
upon vertical pivots outside the pillow blocks, on the base plates of the same,
knockers (0, 0, 0, 0) secured to the levers, and a link (p) connecting one of the
ends of the levers, substantially as, and for the purpose, described.
3. The improved moulding machine herein before described and illustrated in
the accompanying drawing.
Dated the Cth day of Ontabar 1807
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.