Improvements in Machines for the Manufacture of Bricks and Briquettes.
Year: 1890

page_text: Date of Application, 18th Oct., 1890
Complete Specification Left, 18th Aug., 1891-Accepted, 19th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in Machines for the Manufacture of Bricks and
Briquettes.
We, JOHN WARRINGTON of Crag Wood, Rawdon, near Leeds, Colliery
Proprietor, and WILLIAM BRADSHAW LEACHMAN of Excel Works, Great Wilson
Street, Leeds, Engineer, both in the County of York, do hereby declare the nature
of this invention to be as follows:-
1
Our invention has reference to improvements in machinery for the manufacture
of bricks and briquettes consisting of materials or combinations of materials suitable
for fuel.
Our invention is further applicable for the manufacture of bricks and briquettes
for other purposes.
On suitable framework or standards we mount and fix a horizontal cylinder closed
at each end with suitable covers. Within the cylinder is provided a rotating spiral
mixer and feeder, carried in bearings in the cylinder cover at each end of such
cylinder.
At one end of the cylinder and on the axle or shaft projecting therefrom is fixed
a spur wheel to which rotary motion is transmitted through suitable gearing from
convenient motor.
At the other end of the cylinder and at the bottom or lower part is an opening,
through which the mixed and otherwise prepared material passes into a chamber
below.
From this chamber the material is forced by suitable ram into moulds for the
formation of the bricks or briquettes, such moulds being provided in a drum which
is caused to revolve intermittently, or into other convenient moulds for receiving
the material.
The final or finishing pressing operation is effected through toggle jointed con-
necting rods, such pressure being regulated by a hydraulic or steam cushion, which
is of a self adjusting nature, preventing thereby undue strain on the machine when
overloading of the moulds takes place.
The material is supplied to the horizontal cylinder through suitable hopper.
The required heat and moisture is injected into the cylinder amongst the material
in the manner set forth in "Leachman's" Patent Application Nc. 5844–1890,
which has reference to the injecting of steam and products of combustion
combined.
Deted this 18th day of October 1800.
J. W. HARDING,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Machines for the Manufacture of Bricks and
Briquettes.
We, JOHN WARRINGTON of Crag Wood, Rawdon, near Leeds, Colliery
Proprietor, and WILLIAM BRADSHAW LEACHMAN of Excel Works, Great Wilson
Street, Leeds, Engineer, both in the County of York, do hereby declare the nature
of this invention and in what manner the same is to be performed to be particu-
larly described and ascertained in and by the following statement :-
Our invention has reference to improvements in machinery for the manufacture
of bricks and briquettes, consisting of materials or combinations of materials suitable
for fuel, and our improvements is further applicable for the manufacture of bricks
and briquettes for other purposes.

page_text: In the accompanying drawings Fig. 1 is an end clevation. Fig. 2 a longitudinal
section. Fig. 3 a plan looking on the top, and Fig. 4 an 'elevation shewing motion
for actuating mould drum.
On suitable framework or standards A we mount and fix a horizontal cylinder B,
closed at each end with suitable covers C and D.
Within the cylinder B is provided a rotating mixer and feeder, which may be of
a spiral screw form, or composed of angular veins, such mixer and feeder being
carried on a shaft É mounted in bearings F and F¹´in the cylinder covers at each
end of the cylinder.
At one end of the cylinder, and on the axle or shaft E projecting therefrom, is
fixed a spur wheel G to which motion is transmitted through spur pinion H, shaft J.,
and driving pulley K from a convenient motor.
At the other end of the cylinder B, and at the bottom or lower part thereof is an
opening L through which the mixed or otherwise prepared material passes into a
chamber M below. From this chamber M the material is forced by a suitable
ram N alternately into the moulds P for the formation of bricks and briquettes,
such moulds P being provided in a drum Q which is caused to revolve inter-
mittently by an ordinary brick machine motion shewn at Fig. 4, in which R is a
disc mounted on the end of drum shaft S, provided with studs T, whereby the same
is intermittently pulled round by the reciprocating hooked bar U, actuated by and
attached to the disc V in the ordinary way. Rotary motion is imparted to the
revolving disc V through its shaft W and gearing X from driving pulley K. The
same shaft W is provided with a crank Y from which motion is imparted to
the ram N through the connecting rod Z.
The final or finishing pressing operation is effected through toggle jointed con-
necting rod 2, the pressure being regulated by a hydraulic or steam cushion, which
consists of a cylinder 3, provided with a suitable stuffing box, through which a
piston rod 4 is passed, and on its inner end within the cylinder 3 is provided a
piston 5. On the hydraulic or steam pressure being brought to bear behind
the piston at 5¹ a cushioning effect is produced, which intervenes between the dead
pressure produced by the action of the lever 6 operated by the connecting rod Z.
The toggle jointed connecting rod 2 is attached to the second or finishing ram 8,
and the lower end thereof is mounted in bearings 9 on the framework.
The above arrangement of cushion prevents undue strain on the machine when
overloading of the moulds take place.
The material is supplied to the horizontal cylinder B through the hopper 10.
The required heat and moisture is injected into the cylinder B through
opening 11 above the cylinder, and amongst the material for the purpose of
bringing it to the proper consistency and temperature by apparatus described in
"Leachman's" Patent No. 5844 dated 17th April 1890, which has reference to the
injecting of steam and products of combustion combined.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1st. The arrangement, construction and application of toggle jointed_connecting
rod, in combination with the cushioning arrangement and parts connected therewith,
for transmitting motion and imparting the required final or finishing pressing
operation upon the bricks or briquettes, substantially as and for purposes herein set
forth.
2nd. The general arrangement, construction, and combination of the various
parts forming the machine for the manufacture of bricks and briquettes, substantially
as herein set forth.