Improvements in and connected with Moulding Boxes for the Manufacture of Artificial Sand Stone.
Year: 1893

page_text: The decision of the Comptroller-General, of the 14th day of July 1894,
allowed, under Section 18 of the Patents, &. Act, 1883, an Amendment
of this Specification.
Date of Application, 22nd Apr., 1893-Accepted, 5th Aug., 1893
Improvements in and connected with Moulding Boxes for the
Manufacture of Artificial Sand Stone.
I, ERNST ABUND RICHARD AVENARIUS, of Gaualgesheim, Rheinland, in the
Empire of Germany, Manufacturer, 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 a movable moulding box or boxes which can be taken
into pieces and put together again in a most simple and convenient manner.
The box can be taken to pieces by forming the four sides thereof separate from
each other and securing the same together by the bottom end plates aud corre-
sponding projections as well as by rails.
And in order that ny invention may be more fully understood I have caused to
be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Fig. 1 shows the steam boiler in which is put the movable moulding box or
boxes. The boiler end b is fast and the end 61 rendered movable, whilst the interior
of the boiler a is furnished with rails e which facilitate the running in and out of the
moulding boxes. The boiler end b¹ moves on the hingef and is secured in position
by means of bolts d and for the purpose of supporting its weight when being
opened is furnished with one or more wheels c.
Fig. 2 is partly a front view and partly a section of the boiler.
Figs. 3 & 4 represent the detachable moulding boxes inside the boiler a; in the
present instance three separate boxes are combined together which are closed
towards the boiler ends b, b' by means of the plates g, g'. The sides of the lowest
box are marked m, k, m, k, those of the one above m, k', m', k', and those of the
third, ie, the uppermost box m², k², m², k². The lowest box side has fastened
thereto the rails which serve for the reception of an axles furnished with wheels g.
The said rails i are longer than the sides m, k, or m³, k', and m², k², of the moulding
boxes and project on each side beyond the ends thereof, which extensions are formed
with slots into which cottars h are driven for the purpose of fastening the bottom
end plates g, g' against the end edges of the moulding boxes. In addition to the
rails i are arranged a top rail and two intermediate rails 7, r, which also project
through slots in the ends g, g', the respective parts having also slots furnished with
cottars h, h, by means of which the ends 9,9', are secured in position.
The proper relative position of the sides m, k, m², k², m², k³, is ensured by
employing externally on the box sides k, k', k², projections or lugs which entirely
prevent the sides m, m³, m², moving outwardly. On the ends g, g' are arranged
projections p internally which also serve to secure the sides in position.
It may be remarked that recesses n are formed in the external lugs k³ of the
sides k, k¹, k², in which is placed a correspondingly shaped rail o which when using
a number of boxes retain the same longitudinally in their relative position.
The manner in which the apparatus is used consists in first putting the pieces of
the mould-box together and then filling the mould-box with the prepared material,
that afterwards shall form the artificial sand stone. The mould-box after being

page_text: filled and properly closed in the manner herein before described is run into the
boiler and the latter after being tightly closed is filled with hot water and steam.
The water as well as the steam enter the inner interior of the mould box or boxes
and thus penetrate the material contained within the latter, and the material after
being acted on by water and steam due for a sufficient time through, is turned into
the artificial sand stone described.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim, is―
1st. A moulding box for the manufacture of sand stone, in which the sides-m, kz
(m³,-k³,m², k³) can be detached from each other, substantially as and for the
purpose set forth.
2nd. The application of rails-1, + which press together and retain securely in a
certain position the two bottoms, substantially as set forth.
3rd. The application of external projections or lugs k³ for securing the sides-to
each other, substantially as set forth.
4th. The application of a number of moulding boxes which are closed by two-end
plates g, g', substantially as set forth.
5th. The application of wheels mounted in corresponding projections or rails-i
on the sides for the purpose of rendering the moulding box or boxes movable,
substantially as set forth.
6th. The combination of a movable-moulding box or boxes with a steam boiler a,
furnished with rails, into which can be run a single or built up moulding box,
substantially as and for the purpose set forth.
7th. The combination of a movable moulding box or boxes with a steam boiler a
furnished with rails in which can be run a single or built-up moulding box, the
steam boiler a being furnished with a movable end carried by a wheel which
facilitate its removal, substantially as set forth.
8th. A system of moulding boxes, built of readily exchangeable loose bottom,
end, and side plates m, k, m³, k', m³, k², which is held together by lugs k³ and by
two strong eirenler plates g, gl, formed with slots and positioned opposite the ends
of the steam cylinder a and if strengthened secured by rails or ties i, l, r, passing
through the said eireular plates and drawn tight by cottars, in such a manner the
said system of moulding boxes being so arranged and adapted that it can be run as one
part into the steam cylinder a the said moulds being adapted to be closed and filled
with contain the material used for the manufacture of artificial stone, will and to
resist the force of expansion of the lime slacking under the influence of the hot
water and steam admitted for the purpose of producing solid and durable artificial
*tone.
Dated this 21st day of April. 1893.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.