Improvements in Mould-sanding Machines, more particularly for use in the Manufacture of Bricks.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Improvements in Mould-sanding Machines, more particularly for use
in the Manufacture of Bricks.
We, GEORGE VINCENT MAXTED and CHRISTOPHER MCDERMOTT, both of Burnett
Avenue, Hull, in the County of York, Consulting Engineers, do hereby declare the
nature of this invention to be as follows:-
Our invention relates to improvements in mould-sanding machines and more
particularly to those used in connection with the manufacture of bricks for building
purposes. The object of the invention is to provide a machine of comparatively
simple construction that will do mechanically and in a more perfect manner, the
sanding of the moulds necessary to cause the brick to leave the mould readily, which
sanding has hitherto been done either by hand or more complicated machinery.
According to our invention the machine consists of a trough or shell of, prefer-
ably, sheet steel, semi-circular in cross-section, open at the top, and having its ends
closed in by flat castings upon the lower ends of which are feet for the machine
to stand on.
This constitutes the main frame of the machine and is hereinafter
referred to as the sand trough. A strong shaft is mounted across the centre
lengthwise of the sand trough, and on the said shaft is keyed a large toothed wheel
which gears with a pinion on the shaft of a pulley-wheel in connection with the
driving mechanism outside the trough. This central shaft also carries at each end
thereof two castings which consist of strong webbed arms preferably cruciform in
shape, upon which are supported flat plates or platens, extending the full length
of the machine, which revolve round in the trough, so that the edges of the said
plates pass close to and follow the circular contour of the interior surface of the
trough.
The operation of the machine is as follows:-The moulds-which are shallow
boxes having one or more compartments the size of the bricks desired-are dropped
by the attendant on to the connecting bars or frame of the strong webbed arms
above mentioned. The sand trough should contain about four to six inches deep
of sand. As the plates supported upon the webbed arms revolve close to the interior
surface of the sand trough, they scoop up and carry in front of them all the sand
in the trough, and throw it over the said plates into the mould behind. The mould
is passed along and by gravity drops again on to the frame, and as it comes up, the
superfluous sand drops out back into the trough. The attendant then grasps the
mould and places it upon a convenient table or rest close at hand, from whence it is
delivered into the filling press of the brick making machine.
Ti thin 18th dow of August 1897.
PHILLIPS & LEIGH,
Agents for the Applicants.

page_text: mprovements in Mould-sanding Machines, more particularly for use
in the Manufacture of Bricks.
We, GEORGE VINCENT MAXTED and CHRISTOPHER MCDERMOTT, both of Burnett
Avenue, Hull, in the County of York, Consulting 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:-
Our invention relates to improvements in mould-sanding machines and more
particularly to those used in connection with the manufacture of bricks for building
'purposes. The object of the invention is to provide a machine of comparatively
simple construction that will do mechanically, and in a more perfect manner the
sanding of the moulds necessary to cause the brick to leave the mould readily, which
sanding has hitherto been done either by hand or complicated machinery.
We will now proceed to describe our invention in detail reference being had to
the accompanying sheet of drawings illustrating the same, in which :-
Figure 1 is a transverse section of our improved sanding machine in action.
Figure 2 is a side elevation partly in section of our improved sanding machine,
and
Figure 3 is a plan view of one of the mould boxes, detached.
Similar reference letters denote corresponding parts throughout these views; a is
the shell of the sand trough, 6 are the flat ends thereof, and c are the feet thereof;
d is the central shaft, E is the driving pulley; f are the castings which support the
platens 9; 9 are the said platens.
b
According to our invention the machine consists of a trough or shell a of, prefer-
ably, sheet steel semi-circular in cross-section, open at the top; and having its ends
closed in by flat castings 6 upon the lower ends of which are feet c for the machine
to stand on. This constitutes the main frame of the machine and is hereinafter
referred to as the sand trough. A strong shaft d is mounted across the centre
lengthwise of this sand trough, and on the said shaft may be keyed a large toothed
wheel (not shewn in the drawings) which gears with a pinion on a counter shaft
(not shown on the drawing) in connection with the driving mechanism outside the
trough or the machine may be driven direct by means of the pulley E or by any
other suitable means. This central shaft d also carries, near each end thereof,
two or more castings of which consist of strong webbed arms preferably cruciform
in shape, upon which are supported flat plates or platens g extending the full length
of the machine which are revolved round in the trough, the front edges of the said
plates passing close to and following the circular contour of the interior surface of
the trough. h is the mould box.
The operation of the machine is as follows:-
The moulds which are shallow boxes having one or more compartments the size
of the bricks desired, as shewn in Figure 3-are dropped by the attendant on to the
connecting bars or frame of the strong webbed arms above mentioned. The sand
trough should contain about four to six inches deep of sand.
As the plates sup-
ported upon the webbed arms revolve close to the interior surface of the sand trough,
they scoop up and carry in front of them all the sand in the trough, and throw it
backwards over the said plates into the mould behind. The moulds are passed
along by gravity, drop again on to the frame, and as they issue up the other side
the surplus sand drops out back into the trough. The attendant then grasps the
mould and places it upon a convenient table or rest close at hand, from whence it
is delivered into the filling press of the brick making machine.

page_text: 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:-
1. A machine for automatically sanding brick moulds, characterised by a series
of alternate shelves and platens supported tangentially about a central axle, the
said axle being rotatably mounted within and across a trough of semi-circular cross-
section containing sand, such that the front edge of the said platens comes in close
proximity to the interior surface of the said trough, substantially as herein described
and shewn.
2. A machine for automatically sanding brick moulds, constructed, operated, and
working substantially as herein described and shewn.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.