Improved Sand-moulding Brick-machines.
Year: 1891

page_text: Date of Application, 12th Oct., 1891
Complete Specification Left, 27th June, 1892-Accepted, 30th July, 1892
PROVISIONAL SPECIFICATION.
Improved Sand-moulding Brick-machines.
I, WILLIAM ROWLAND TAYLOR, of No. 2, Star Hill Villas, Rochester, in the
County of Kent, Receiver, and Manager of the firm of Messrs. Taylor and Neate,
Medway Works, Rochester, aforesaid, Engineers, do hereby declare the nature of
this invention to be as follows:-
This invention relates to machines for the utilisation of existing pug mills in the
manufacture of bricks, especially on the sand moulded principle.
Accordingly, a machine of my invention consists of two endless flat link
chains running parallel with the mill over hexagonal pulleys fixed on to iron
standards or bearings, and is driven by a pulley from the present shafting acting
continuously.
The mouth piece is a cast iron cone fixed to the side opening of the pug mill,
and is driven by pulleys off the mill shaft. It has a helical screw fitted inside for
the purpose of forcing the clay from the mill through an opening underneath into
the said moulds.
The moulds are fixed in between the chains with guide pulleys on their sides
to keep the moulds steady whilst being filled. Each mould is fitted at the bottom
with a moveable frog or piston and has small grooved pulleys affixed on brackets
which facilitates the sliding of the piston up an inclined bar for the expressing or
pushing out of bricks from the said moulds, at which end they can be taken off the
machine and placed on barrows.
The apparatus for sanding the moulds consists of hoppers supported on brackets
which have slides for regulating the supply falling on to a revolving brush or rollers
driven by pulleys from the drum or hexagon pulley shafts. Each mould has also
an angle plate fixed on one side and on the other side is a small ledge which is for
the purpose of filling up spaces between the said moulds, and they act as a valve
for shutting off the feed of clay until the mould is again under the mouth, thus
forming a continuous line.
If preferred this machine can be worked by a toggle arrangement, instead of the
bevel gear, which would allow the moulds to stop under the mouth piece for a few
seconds to be filled then cut by wire and pass on as before described.
Dated this 12th day of October 1891
PHILLIPS & LEIGH,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Sand-moulding Brick-machines.
1, WILLIAM ROWLAND TAYLOR, of No. 2, Star Hill Villas, Rochester, in the
County of Kent, Receiver and Manager of the firm of Messieurs Taylor and Neate,
Medway Works, Rochester, aforesaid, Engineer, 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 improvements in brick machines, and is especially
applicable to sand moulding machines. It is adapted for being fixed to and used
in close combination with an ordinary pug mill, or it may work independently of
the latter.
In order that my invention, and the means by which it is to be carried into
practical effect, may be thoroughly understood, I will describe it and them in

page_text: detail, referring in so doing to the accompanying drawings which are to be taken
as part of this Specification and read therewith.
Fig. 1 is a front elevation illustrating the combination of my invention with a
pug mill.
Fig. 2 is a side elevation, partly in section, corresponding with Fig. 1...
the
a is an ordinary pug mill; b, its hopper, and c, its shaft,
d is the mouth piece of the pug mill. I prefer that it should be of the construction
illustrated in the drawings although my invention does not absolutely restrict me in
this matter. This mouth piece is a hollow cone fixed by its larger end to the side of
pug at the end opposite the hopper, and near the bottom. e is a helical traverser.
Its shaft is supported axially within the mouth piece by suitable bearings, and is itself
driven preferably from the shaft of the pug mill by pulleysf, f, band f¹ and bevel
gearing g is the delivery spout of the mouth piece d from which it projects
vertically downwards..
The endless carrier, moulds, the sanding mechanism and their driving and
operating gear are as follows.
6-
h, are a pair of standards provided with bearings in which runs the first motion
shaft i. This may be driven in any convenient way. One such way is by means of
pulleys and belt gear; from the shaft of the pug mill.
k, k, k, kare two pairs of standards aligned with each other in proper position for
supporting the endless carrier under the delivery spout g, in a plane at right angles
with the axis of the traverser.
,, are two shafts adapted to run in bearings in the standards k. They are
Decessarily parallel with each other and with the axis of the traverser. Each one
carries a pair of hexagon pulleys 1, P. These are fast to their respective shafts, upon
which they are fixed at equal distances, those on one shaft being consequently
aligned respectively with those on the other. The pulleys are conveniently hexagon,
but the number of sides may be varied.
m is a bevel pinion on the end of the shaft i engaging with a bevel wheel m² on
the adjacent end of the shaft 1. This bevel gear provides for the motion of the f
shaft being transmitted to the, endless carrier.
The endless carrier consists of two chains built up of links, guide pulleys and.
their stud axles. n, n are the links. They are flat bars set on edge, and are all of
the same length, that length being proportionate to the joint length of a mould and
a closing plate described further on. The links in a chain are laid alternately
right and left of the centre line of the chain. The overlapping ends of two adjacent
links are pivotted together by the end of the stud axle of a guide roller.
the guide rollers; and o', o', their stud axles.
0,0 are
The combination of polygonal pulleys and straight links may be replaced by
round pulleys having studs or indentations on their peripheries adapted to engage
the chain so as to prevent its slipping.
p, p are the moulds. Each mould is supported centrally between two adjacent
pairs of guide rollers by studs p',p' which enter the respective links n.
9,9 are a pair of horizontal guides. They are of trough section. Their open
sides face each other and are deep enough for the guide rollers o to roll freely
through them, but shallow enough to prevent the rollers jumping. The mouths of
the guides are trumpet shaped to provide for the entrance and exit of the moulds.
Both guides are supported by pillow blocks q' at the proper height for the moulds
to just clear the delivery spout g.
Each mould is provided with a closing plater which is fixed along the leading 5
edge of the mould, and lies in the same plane as the top of the latter. The width
of the plate is equal to the interval between two moulds when they are both
upright. A ledge, is fixed along the opposite edge of the mould in a corresponding
position, so that as the moulds enter between the guides, the plates r close down
upon the respective ledges r'. As the moulds pass under and past the delivery 5
spout g, the latter either has an open mould under it, or it. is closed by a plate r
interposing itself between it and the interval between two moulds..

page_text: s is the mould bottom. Each bottom is distinct from its mould, in which it is.
fitted to work vertically in either direction, after the manner of a piston. ¹, s² are
a pair of grooved pulleys both carried at the same level by arms projecting from
the outer face of a mould bottom. s, are a pair of ejector bars, each one thin
enough on its top edge to enter the grooves of the pulleys. They are held by
suitable means, e.g. brackets o, in the respective paths of the two lines of grooved
pulleys, The front ends of these bars are bent downwards to facilitate the
engagement of the pulleys with them, and the rear ends are curved to the path of
the said pulleys round the next pulleys . In respect of the height at which the
ejector bars are held, their front ends are low enough for the grooved pulleys to be
in touch with them, and they gradually rise, the rear ends being higher than the
front ones by the depth of a mould. These two bars constitute the ejecting incline.
, sare stops-they may be prolongations of the axles of the grooved pulleys-to-
prevent the bottoms dropping out of the inverted moulds.
t, t¹ are the sand hoppers. Each is supported by posts standing upon the guides.
is a slide for regulating the discharge. is a rotary brush. It is driven by a
band and pulley gear from the shaft of the adjacent hexagon pulley.
u is a scraper. It is pivotted upon brackets u', one on each guide, and is held
down to its work by springs u².
The operation of the invention is as follows:-As the empty moulds pass under
the first hopper, its rotary brush scatters sand over the mould bottom. As a mould
passes under the delivery mouth g, it is filled with clay, the closing plates r before and
behind preventing clay leaving the mouth outside the mould. The mould is carried
forward under the scraper and the top of the brick left smooth. As the rollers s², st
roll up the ejecting incline, the moulded brick has its top sanded from the second
hopper as it passes under it, and is pushed out of the mould before the latter moves.
down out of the horizontal. It can be taken away. The gradual ejection of a
brick is clearly illustrated in Fig. 1.
The process of brick moulding is necessarily a continuous one in a machine
constructed according to the present invention. I may however adapt it to move
the moulds forward with an intermittent motion, by making use of a toggle, or
equivalent gear, by which the moulds, as they get under the delivery mouth 9,.
would be held there for a few seconds whilst they were being filled, then cut by a.
wire and be moved forward as described above.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is, to be performed, I declare that what I
claim is
1. The combination of an endless carrier, a series of moulds each fitted with a
movable piston bottom, and an ejecting incline, as set forth.
2. The combination with a series of moulds adapted to be carried in the
horizontal plane past the delivery mouth of a pug mill, of a sanding device over the
said plane on either side of the said mouth, as set forth.
3. The combination with a pug mill of a series of moulds, an endless carrier and
sanding devices, as set forth.
Dated this 27th day of June 1892.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Applicant.