Year: 1899

page_text: Date of Application, 11th Apr., 1899
Complete Specification Left, 11th Jan., 1900-Accepted, 17th Feb.,
1900
I, JOHN THORNTON, of the Firm of Thornton and Crebbin, 73, Hammerton
Street, in the City of Bradford, Ironfounders and Engineers do hereby declare
the nature of this invention to be as follows:-
This invention relates more particularly to improvements in that type of
brick presses or brick making machines in which the forming die or mould is fed
by a charger moved into position over the mould whilst the upper ram is raised,
and its object is to provide simple means whereby each brick is pressed or
squeezed twice principally to impart "face or finish to the bricks.
For this purpose instead of operating the charger every time the rams move
outward I only operate it every other outward movement of the rams conse-
quently each brick besides being pressed twice is raised and lowered in the same
mould between the two squeezes to face" or finish it. This may be effected by
any convenient arrangement of mechanism adapted to operate the charger during
every alternate rotation of the shaft actuating the rams. As for instance, an
extra shaft may be employed to carry the cam or its equivalent for actuating the
charger and this extra shaft is driven at half the speed of the shaft actuating the
rams.
I make the hole by which the charger is filled only large enough to enable
sufficient clay to pass in, as I find that in this case the clay much more readily
leaves the charger and I am able to use wetter or more adhesive clay as well as
work at an increased speed. I may curve or round out the angles formed by
the partially covered in top and the sides of the charger.
Total this 10th f ....11000
DRACUP & NOWELL,
Patent Agents, Bradford.
I, JOHN THORNTON, of the Firm of Thornton and Crebbin, 73, Hammerton
Street, in the City of Bradford, Ironfounders and 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 relates to improvements in that type of brick presses or brick
making machines in which the forming die or mould is fed by a charger moved
into position over the mould whilst the upper ram is raised, and its object is
rn017

page_text: to provide simple means whereby each brick is pressed or squeezed twice prin-
cipally to impart "face" or finish to the bricks.
For this purpose instead of operating the charger every time the rams move
outward I only operate it every other outward movement of the ram conse-
quently each brick besides being pressed twice is raised and lowered in the
same mould between the two squeezes to "face" or finish it.
To fully describe my invention, reference is made to the accompanying sheet
of drawings, forming a part of this specification, in which similar figures of
reference indicate corresponding parts in each of the views.
Figure 1, represents a side elevation with the near side frame removed of
such parts of a brick press as are necessary to illustrate my improvements.
Figure 2, is a front view of the same.
The bed 2, side frames 3 charger 4 and main shaft 5 are formed and arranged
in the ordinary way. Projecting bearings 6 are formed on the side frames to
carry the cam shaft 7 which is driven at half the speed of the shaft 5 by the
spur wheels 9 and 10. A cam race 12 is made in the face of the wheel 10 to
engage the anti-friction roller 13 carried by the stud 14 on the lever 15 pivoted
by its lower end to the top of the standard 16 secured to the bed 2. The upper
end of the lever 15 is connected by the rod 18 to the charger 4 and operates
once during each revolution of the cam 12, that is to say, during every second
revolution of the shaft 5 operating the pressing mechanism.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1. A brick press of the type specified in which the charger is only operated
after every alternate movement of the pressing mechanism, substantially as
herein shown and described and for the purpose specified.
2. In a brick press of the type specified, the combination with the shaft 5 driving
the pressing mechanism, of the cam shaft 7 driven from the shaft 5 at half its
speed, the cam 12 on the shaft 5 and means for connecting it to the charger
to actuate it, substantially as herein shown and described and illustrated in the
accompanying drawings.
Dated this 10th day of January 1900.