AN IMPROVED MODE OP AND APPARATUS FOR RELEASING INGOTS FROM THEIR MOULDS
Year: 1874

page_text: LETTERS PATENT to Alexander Wilson, of the Wilson and Cammell
Patent Wheel Company (Limited), of Dronfield, near Sheffield, in
the County of York, for the Invention of "AN IMPROVED MODE
OP AND APPARATUS FOR RELEASING INGOTS FROM THEIR MOULDS,
Scaled the 12th February 1875, and dated the 15th August 1874.
PROVISIONAL SPECIFICATION left by the said Alexander Wilson
at the Office of the Commissioners of Patents, with his Petition,
on the 15th August 1874.
I, ALEXANDER WILSON, of the Wilson and Cammell Patent Wheel
Company (Limited), of Dronfield, near Sheffield, in the County of York,
do hereby declare the nature of the said Invention for "AN IMPROVED
MODE OF AND APPARATUS FOR RELEASING INGOTS FROM THEIR MOULDS," to be as
follows:-
The chief object of this Invention is to prevent injury to ingot moulds
by reason of their being tripped and knocked to disengage the cast
ingots therefrom. In carrying out this object I propose to force out.

page_text: the ingots by the aid of a hydraulic or other press.
,,
The mould con-
taining the hot or cold ingot is lifted out of the "pit" or other part of
the shop by means of hydraulic or other cranes and placed underneath
the "ram" of the press; the " ram is then brought to bear on the top
or small end of the ingot with a pressure sufficient to force it out of the
mould; the discharged ingot and empty mould are then lifted out of the
way by hydraulic or other cranes, and other moulds with their ingots
are brought in succession under the press in the same manner as
described above. The press I fit with a bed suitably recessed to receive
the ingot mould and ensure its being readily placed centrally with
respect to the ram. The ram I support in an elevated position by
means of weighted chains attached to a cross head of the ram or its
equivalent and laid over antifriction rollers. These weighted chains
while giving to the downward pressure imparted to the ram will so soon
as that pressure is removed raise the ram clear of the mould and into a
position to repeat its action on the next ingot introduced into the
press.
The like effect to that above described it will be obvious can be pro-
duced by the aid of the pneumatic and steam presses. with very slight
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Alexander Wilson in the Great Seal Patent Office
on the 15th February 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
WILSON, of the Wilson and Cammell Patent Wheel Company (Limited), 2
of Dronfield, near Sheffield, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifteenth day of August, in the year
of our Lord One thousand eight hundred and seventy-four, in the
thirty-eighth year of Her reign, did, for Herself, Her heirs and suc- {
cessors, give and grant unto me, the said Alexander Wilson, Her
special licence that I, the said Alexander Wilson, my executors, ad-
ministrators, and assigns, or such others as I, the said Alexander
Wilson, my executors, administrators, and assigns, should at any

page_text: 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 Inven-
5 tion for "AN IMPROVED MODE OF AND APPARATUS FOR RELEASING INGOTS FROM
THEIR MOULDS," upon the condition (amongst others) that I, the said
Alexander Wilson, my executors 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 Alexander Wilson, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by
the following statement, reference being had to the Drawing hereunto
annexed, and to the letters and figures marked thereon (that is to
say) :-
"
The chief object of this Invention is to prevent injury to ingot moulds
by reason of their being "tripped and knocked to disengage the cast
ingots therefrom. In carrying out this object I propose to force out the
ingots by the aid of a hydraulic or other press. The mould containing
the hot or cold ingot is lifted out of the "pit" or other part of the shop
by means of hydraulic or other cranes and placed underneath the "ram"
of the press, the "ram" is then brought to bear on the top or smaller end
of the ingot with a pressure sufficient to force it out of the mould. The
discharged ingot and empty mould are then lifted out of the way by
hydraulic or other cranes, and other moulds with their ingots aro
brought in succession under the press in the same manner as described
above.
In order that my Invention may be the better understood, I have
shown in the accompanying Drawing a bydraulic press suitably arranged
for discharging ingots from their moulds.
Fig. 1 is a front elevation of the press with the ingot mould set in
position immediately below the ram; and Fig. 2 is a side elevation of
the press, the ingot mould and bed of the press being in section.

page_text: A is the standard of the press; B, the bed; C, the hydraulic cylinder
supplied from a pipe D; E, the ram working in the cylinder C and
shaped at E* so as to enter freely into the upper end of the tapering
ingot mould F which is supported upon the bed B. This bed is cast
hollow and suitably recessed to receive the ingot mould (which is open
at both ends), and to facilitate its being placed centrally with respect to
the ram to ensure the ram in its descent striking the ingot and driving
it out at the bottom of the mould. The ram I support in an elevated
position by means of weighted chains G attached to a cross head E¹ of
the ram and laid over antifriction rollers H. These weighted chains
while "giving " to the downward motion of the ram imparted to it by
the accumulating pressure of the water in the cylinder C will so soon as
that pressure is removed raise the ram clear of the mould and into a
position to repeat its action on the next ingot introduced into the
press.
The like effect to that above described it will be obvious can be pro-
duced by the aid of pneumatic, of steam, or of lever presses, with very
slight modifications in their mechanical arrangements, provision being-
made for the proper adjustment of the mould and for the reception
below the bed of the discharged ingot.
Having now set forth the nature of my Invention of "An Improved
Mode of and Apparatus for Releasing Ingots from their Moulds," and
explained the manner of carrying the same into effect, I wish it to be
understood that under the above in part recited Letters Patent I claim,
the means above described or any mere modification thereof for forcing a
ingots from their moulds.
In witness whereof, I, the said Alexander Wilson, have hereunto
set my hand and seal, the Thirteenth day of February, in the
year of our Lord One thousand eight hundred and seventy-
fina