Improvements in or connected with Machinery for Making Paving or Building Slabs or Blocks and other Articles.
Year: 1895

page_text: Date of Application, 2nd Feb., 1895
Complete Specification Left, 2nd Nov., 1895-Accepted, 7th Dec., 1895
PROVISIONAL SPECIFICATION.
Improvements in or connected with Machinery for Making Paving
or Building Slabs or Blocks and other Articles.
We, CHARLES MUSKER and ARTHUR MUSKER, both of Dundas Street, Bootle,
in the County of Lancaster, Hydraulic Engineers, do hereby declare the nature of
this invention to be as follows:-
This invention has reference more particularly to machinery for manufacturing
pressed blocks, slabs, or other pressed articles, of cement and other substances, as
stone chippings, "Destructor" residue, or powdered stone, or cement concrete ;
and the main object of the present invention is to provide improvements in connection
with machinery employed for this purpose, by which certain of the operations, may
be performed by the machinery itself, and labour economized.
For convenience of description, it will be assumed that machinery having the
present improvements applied to it is to be used for the production of artificial
stone slabs or blocks; and that the machinery is of the type where a movable die
frame or matrix, in which the material is pressed, is used in connection with
hydraulic pressing machinery, and is adapted to be moved towards or under the
said press, and after the material is pressed, withdrawn therefrom, mechanically, as
by a hydraulic cylinder or the like, and reversed, and the pressed slab or block
removed from the frame, matrix, or apparatus in which it is carried, onto a suitable
receiving platform or apparatus.
According to the present invention, there is used in connection with a frame,
truck or part, which carries the press matrix or frame to and fro, i.e. to and from
the press, a gear or mechanism by which, when it has been moved a certain distance
from the press, after the material is pressed, the matrix, frame, or die carrying the
slab or block will be automatically revolved half a revolution, so that the slab or
block may fall or be pressed out in a reverse position onto a receptacle or apparatus
below. The truck or carrier referred to is conveniently moved to and fro by a
hydraulic ram connected to it.
In one form, the frame of the mould is provided with trunnions whereon it is
mounted and is free to revolve, the trunnions being supported on carriages running
on rails. Passing through these trunnions, and through a movable bottom or block,
constituting a duplex bottom to the mould or frame, there is a shaft, suitably
operated, which works holding blocks or nuts provided inside the frame, whereby
the movable bottom or block can be adjusted and held in a fixed position during
the reversing movement. Also there may be provided with this apparatus, means
for locking the mould frame in a horizontal position; and such means may
conveniently consist of a movable lever or part adapted to move onto and off a
square part of the trunnion of a frame, and pins on the carriage.
The means or mechanisms for reversing the frame or mould, or the carrier, may
consist of a rack and spur wheels, worm gear, tappet mechanism, auxiliary hydraulic
device automatically actuated or set to act, or equivalent, or other suitable
mechanism.
Th100%
CHEESBROUGH & ROYSTON, Fels. Chart. Inst. P.A.,
15 Water Street, Liverpool, Applicants' Patent Agents.

page_text: Improvements in or connected with Machinery for Making Paving
or Building Slabs or Blocks and other Articles.
We, CHARLES MUSKER and ARTHUR MUSKER, both of Dundas Street, Bootle,.
in the County of Lancaster, Hydraulic Engineers, 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 has reference more particularly to machinery for manufacturing
pressed blocks, slabs, or other pressed articles, of cement and other substances, as
stone chippings, "Destructor residue, or powdered stone, or cement concrete;
and the main object of the present invention is to provide improvements in connection
with machinery employed for this purpose, by which certain of the operations may
be performed by the machinery itself, and labour economized.
For convenience of description, it will be assumed that machinery having the
present improvements applied to it, is to be used for the production of artificial
stone slabs or blocks; and that the machinery is of the type where a movable
mould, frame, or matrix, in which the material is pressed, is used in connection
with hydraulic pressing machinery, and is adapted to be moved towards or under
the said press, and after the material is pressed, withdrawn therefrom, mechanically,
as by an hydraulic cylinder or the like, and reversed, and the pressed slab or block
removed from the frame, matrix, or apparatus in which it is carried, onto a suitable
receiving platform or apparatus.
According to the present invention, there is used in connection with a frame,
truck, or part, which carries the press matrix or frame to and fro, i.e. to and from
the press, a gear or mechanism by which, when it has been inoved a certain distance
from the press, after the material is pressed, the matrix frame, or die, carrying the
slab or block, will be automatically revolved half a revolution, so that the slab or
block may fall or be pressed out in a reverse position onto a receptacle or apparatus
below. The truck or carrier referred to is conveniently moved to and fro by a
hydraulic ram connected to it.
In one form, the frame of the mould is provided with trunnions whereon it is
mounted and is free to revolve, the trunnions being supported on carriages running
on rails. Passing through these trunnions, and through a movable bottom or block,
constituting a duplex bottom to the mould or frame, there is a shaft, suitably
operated, which works holding blocks or nuts provided inside the frame, whereby
the movable bottom or block can be adjusted and held in a fixed position during
the reversing movement.
The means or mechanism for reversing the frame or mould, or the carrier, may
consist of a rack and spur wheel, worm gear, tappet mechanism, auxiliary hydraulic
device automatically actuated or set to act, or equivalent, or other analogous
suitable mechanism."
'
An illustration of our invention is given in the drawings hereto annexed; in which
Figure 1 is a side longitudinal sectional elevation; Figure 2 is a plan; and
Figure 3 a cross section through the machine shewing the mould, and a raising
and lowering trolley for carrying away the completed slab. The apparatus shewn
is of the type set forth in the Specification of our former Letters Patent No. 17868
of 1894, and therefore a detailed description of the old parts in this Specification
is not necessary.
In the drawings hereto annexed, a generally designates the press, the hydraulic
ram or rams of which will be in the base, and the pressing action whereof is upwards.
The reversible mould referred to, comprises, a frame g, and a duplex movable
bottom h. The two faces h¹ of the sliding bottom hare provided with perforations
or apertures as shewn, while the frame is provided with trunnions g', which rest

page_text: The-
and work in carriers i, which slide on rails m on either side of the mould.
position of the duplex or box bottom 1, is supported and controlled by the shaft k,
which passes through one of the trunnions g', and is provided with an actuating
wheel outside, and nuts k inside, which are adapted to be worked to and fro on
threaded parts of the shaft k. By rotating the shaft k by the wheel k¹, and so
moving the nuts k² onto or off the sides of the bottom h, it (the bottom) is gripped
and held in position, or released, at will, as and when required. m are the rails on
which the mould carriers i slide, the ends of which rails are supported in any
suitable way. R is a forked bracket, the ends of which are connected to the
carriers i as shewn. Through this means, and the horizontally arranged actuating
ramn, the end of which is shewn in the drawing-the necessary to and fro-
motion is imparted to the mould.
The automatic reversing mechanism referred to consists of or comprises a block l
sliding or moving to and fro on one of the rails m; a pin fastened in the inside-
edge of one of the carriers i; spur wheels o and o¹ mounted loosely on one of the
trunnions g of the mould; and a pawi p on the mould frame 7 working in
connection with the inner spur wheel o.
The block has on its inside a rack as
shewn, with the teeth of which the outer spur wheel o¹ engages and works; whilst
the other spur wheel o engages only the pawl p. The rack block slides two and
fro in a groove in the side rail m, the groove being so arranged, that such block.
will come in contact with its back or outer end, when the mould is nearing the
outer end of its stroke, and will therefore be held by it; while in the inward stroke-
of the mould, the block is not restricted as to movement.
The following is the action of the apparatus:-It may be assumed that the-
mould is filled with loose concrete material and ready for pressing, and is to be
moved under the press a by the ram n', which moves it to and fro. Then, in this-
state the mould is pushed by the ram n¹ under the press, and then the press rams.
hold the mould up to the press head (as in our said former Patent) and press up the
double bottom, and put the material to be pressed under pressure. When this..
pressing is complete, the press rams are removed, and the mould is pulled back
from under the press by its working ram n'. When the mould has been pulled out..
to a certain extent, viz., to the position shewn in the drawings, and nearly over the
trolley r, which is resting on the platform g of the raising and lowering ram p, the
block will have come against the end of the groove in the rail m, and is thus
stopped and held. The action then is, that the wheel o being engaged with and.
held by the pawl p, by the further movement of the mould by its ram, the outer
toothed wheel o' will be revolved in moving along the rack of the block l, and the
mould therefore is caused to revolve with said wheels as they revolve. The
amount of the remainder of the stroke of the mould is such as to give the mould:
half a revolution, and so bringing it into a horizontal position by the time it
reaches or stands over the trolley r. When it has reached this position, the
nuts are loosened from off the sides of the bottom h by turning the hand wheel k¹,.
and this being done, the weight of the bottom causes it to fall and press out the
slab onto the trolley. The slab being so delivered, the trolley ram p is lowered in
the usual way, and the slab moved away from the mould; and when it has fallen
to the point as shewn in dotted lines in the drawing, so that the trolley head
rests on the block v, the head of the trolley is tilted, and the trolley runs by gravity
down the inclined railway u, carrying with it the slab. This completes the cycle
of operations, and the next operation will be that the mould is again filled, and
again moved towards the press. In this movement, in going from the extreme end.
of its stroke to the position shewn in the drawings, the wheel o will run freely
along the rack of the block I, lifting up the pawl p in so doing, and therefore there
will not be any tendency for the mould to revolve. When the pin on the-
carrier i reaches the end of the slot in the block 1, it will carry along the block
with it through the whole of the stroke.
Although, as stated, the general nature of the machine illustrated and described
is similar to that set forth in our prior Patent No. 17868 of 1894, yet it is to be-

page_text: understood that the features or improvements hereunder are not necessarily
restricted to machines of the exact form or construction therein set forth; nor
are they restricted to the particular form of parts shewn in the drawings.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, we declare that what we
claim is :-
1. In machinery for making slabs or blocks, or other pressed articles of cement.
concrete, or analogous material, the improvement consisting in providing in
combination with a mould of a reversible type of a part, operating substantially.
as described, by which when the mould is brought up to or near the outer end
of its stroke, it is automatically caused to take a half revolution; for the purposes.
described.
2. In apparatus for making slabs or blocks, or other pressed articles of cement
concrete, or analogous material, a reversible mould of the type herein described,
having trunnions and a tooth wheel or wheels thereon, and a toothed rack with
which said toothed wheel or wheels engage and work over at the outer end of
the stroke of the mould, and by which said mould is revolved, for the purposes
described.
3. The construction and arrangement of machinery for making slabs or blocks,
or other pressed articles, of cement concrete, or analogous material, particularly
as set forth with reference to and shewn in the drawings.
Dated this 1st day of November 1895.
CHEESBROUGH & ROYSTON,
15 Water Street, Liverpool, Applicants' Patent Agents.