An Improved Method of Mounting Crushing Rollers in Brick Making and other Machines.
Year: 1886

page_text: Date of Application, 20th May, 1886.
Complete Left, 16th Feb., 1887.
Complete Accepted, 20th May, 1887.
RESERVE
An Improved Method of Mounting Crushing Rollers in Brick
Making and other Machines.
RICHARD BRADSHAW of Daisy Bank in the Parish of Swinton in the County of
Lancaster, Mechanical Engineer do hereby declare the nature of my invention for
AN IMPROVED METHOD OF MOUNTING CRUSHING ROLLERS IN BRICK MAKING AND
OTHER MACHINES to be as follows:-
This Invention consists in mounting the brasses (in which the shafts of the rollers
work) in cast iron (or of other material) rectangular frame or pedestal-this Frame or
pedestal is fitted into a slot in the main frame of the machine-the slot is slightly
longer than the frame or pedestal containing the brasses Between the frame carrying.
the brasses & the end of the slot furthest away from the touching surfaces of the
rollers is placed a cushion of india-rubber or coiled spring & next this cushion or
spring a plate movable by means of a set screw-This set screw is to adjust the rollers
with respect to the space between them.
RICHARD BRADSHAW. :

page_text: I, RICHARD BRADSHAW, Daisy Bank Swinton Lancashire 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 :-
The object of the invention is to provide an efficient means of mounting the crushing
rollers of brick making or other machines, so that the jar caused in working is reduced
to a minimum, and the chance of breaking the machine through any stone or hard
substance getting between the rollers is removed entirely.
My invention consists in mounting one or both the shafts of the crushing rollers in
brasses or hearings, which are made so that a lateral movement or play is allowed them.
A spring or india-rubber cushion is placed behind the brasses or bearings which allows
an elastic lateral movement when a stone or other hard substance or obstruction gets
between the rollers, and so decreases the jar, and prevents the rollers being injured or
broken. A set screw is fitted to adjust the faces of the rollers with respect to
each other.
Referring to the drawing which shews in clevation an arrangement of my improved
method of mounting crushing rollers:―
.A are the shafts of the machine carrying rollers a covered by casings a' revolving
in brasses or bearings B, which may be made solid or in halves. These bearings B are
preferably mounted in blocks C (which may be of cast iron or other suitable material)
and are fitted and made to slide in slots D in the main frame E of the machine, or the
bearings B may be made to slide without the blocks. This slot is made longer than
the bearings B or the blocks C, so as to leave space for some elastic material, such as
an india-rubber cushion For a coiled spring G. Next this cushion, I prefer to place
a plate or washer H which is movable by a set screw J. This set screw J will adjust
the amount of pressure of the springs tending to press the rollers together. If any
stone or hard substance gets between the rollers, the spring or elastic cushion allows
the rollers to move further apart, and thus the pressure or jar is reduced to a minimum
and the chance of breaking the machine entirely removed. The space K can or cannot
at option be filled with packing to prevent the rollers from grinding against each other
when running empty or in coarse grinding roller mills to regulate exactly the minimum
distance between the rolls.

page_text: 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 :—
The improved method of mounting crushing rollers in brick making and other like
machines, which consists in mounting the bearings of each roll in such manner that
they shall be capable of moving in a direction directly or nearly directly away from
the bearings of the other roll or rolls, and limiting that movement by an elastic spring
or buffer, the degree or compression of which is adjusted by a set screw, or its
equivalent mechanism.
Dated this 15th day of February 1887