IMPROVEMENTS IN CRUSHING AND PULVERISING MACHINERY
Year: 1881

page_text: LETTERS PATENT to Andrew Lamberton, of Coatbridge, in the County of
Lanark, North Britain, Engineer, for an Invention of "IMPROVEMENTS IN
CRUSHING AND PULVERISING MACHINERY."
PROVISIONAL SPECIFICATION left by the said Andrew Lamberton, at the
Office of the Commissioners of Patents on the 3rd August 1881.
ANDREW LAMBERTON, of Coatbridge, in the County of Lanark, North Britain,
Engineer. "IMPROVEMENTS IN CRUSHING AND PULVERIZING MACHINERY."
This Invention, which relates to improvements in machinery for crushing
and pulverizing solid substances, such as stones, phosphates, coprolites, pyrites,
and other solid, mineral, or metallic substances, consists of a strong framing, in
the upper part of which three are one, two, three, or more jaws carried on an
axis, upon which they are capable of being moved upwards and downwards as
well as inwards and outwards by means of eccentrics passing through bearings in
the lower part of each jaw. As each moveable jaw is forced inwards it crushes
the material which is fed into the space between the moveable and fixed jaws; the
substance being so crushed falls downwards into the space formed by two
cylindrical rollers placed close or nearly close together, and running at differential
speeds, so that the material is then submitted to a second crushing or pulverizing
action. One or more sets of pulverizing rollers may be used, and in order to
prevent their surfaces from being "corded," grooved, or otherwise cut into by
revolving constantly in one plane a lengthwise reciprocating motion is imparted to
one, two, or more of the rollers.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Andrew Lamberton in the Great Seal Patent Office on the 1st
February 1882.
ANDREW LAMBERTON, of Coatbridge, in the County of Lanark, North Britain,
Engineer. "IMPROVEMENTS IN CRUSHING AND PULVERISING MACHINERY."
My said Invention, which relates to improvements in machinery for crushing and
pulverising solid substances, such as stones, phosphates, coprolites, pyrites, and other
solid mineral or inetallic substances, consists of a strong framing, in the upper part
of which there are one, two, three, or more jaws carried on an axis upon which
they are capable of being moved upwards and downwards as well as inwards and
outwards by means of eccentrics passing through bearings in the lower part of each
jaw. As cach movable jaw is forced upwards and inwards it crushes the material
which is fed into the space between the movable and fixed jaws, and the substance
so crushed falls downwards into the space between two cylindrical rollers placed
close or nearly close together, and preferably running at different speeds. The
material is thereby submitted to a second crushing or pulverising action.
'One or more sets of pulverising rollers may be used, and in order to prevent
their surfaces being corded," grooved, or otherwise cut into by revolving con-
stantly in one plane a lengthwise or reciprocating motion is imparted to one or
more of the rollers.
"
And in order that my said Invention may be properly understood I now proceed
more particularly to describe the system, mode, or manner in or under which the
same is or may be used or carried out in practice, reference, being had to the
annexed Sheet of Drawings and to the letters and figures marked thereon, that
is to say
On the Sheet of Drawings hereunto appended, Figure 1 is a side elevation.
Figure 2 an end elevation, Figure 3 a vertical section, and Figure 4 a plan of the
improved crushing and pulverising machine constructed in accordance with my
said Invention. As shown by these Figures the machine consists of a strong
framing A, in the upper part of which there are one.crushing-jaw-B,fixed stationary
-in-the-framing and two jaws C, carried on an axis D, upon which they are capable
of being moved upwards and downwards as well as inwards and outwards, such
movement being effected by means of eccentries a, carried or fixed on a shaft b,
which passes through adjustable bearings c, supported in the framing A. On the
shaft ba fly wheel E is fixed at one end, and the said shaft receives rotatory motion
through a belt passed round a pulley F, fixed on the end opposite to the fly wheel.
The substance to be crushed and pulverised is fed into the machine at X, and as
each movable jaw Cis forced upwards and inwards it crushes the material against
the fixed jaw B, the said material thereafter falling downwards through the guide
Y into the space between two rollers G, H, which are placed with their peripheries
close or nearly close together, and are fixed upon two shafts or journals d, e,
carried in adjustable bearings in the lower part of the framing A. The rollers
G, H, are caused to rotate in opposite directions, and preferably at different speeds,
by a train of spur wheels, one of which, the wheel I, is fixed upon the shaft b,
carrying the eccentrics a, and geared with a wheel J on the axis of the roller G,
which wheel J also gears with a wheel K of lesser diameter on the axis of the
roller H; or the wheels J, K, may both be of the same diameter if desired.
The material being operated upon is by the rotation of the rollers G, H, submitted
to a second crushing or pulverising action, and in order to prevent the surfaces of
the said rollers from being "corded," or grooved, or otherwise cut into by revolving
constantly in one plane, a lengthwise or reciprocating motion is imparted to the

page_text: roller H by means of the lever L, which is centred on a pin or stud M, and
connected at one end to the axis e of the roller H. In the other end of the lever
a slot is made, through which a pin f, fixed in a worm wheel g, passes as seen at
Figures 3 and 4, and more particularly by the enlarged detailed views, Figures
and 6 of the Drawings. The worm wheel g, is carried on a pin or stud fixed in a
bracket bolted to the framing A, and the said wheel is geared with a worm
screw h, formed or fixed on one end of a horizontal shaft i, also carried in brackets
bolted to the framing A and having a pulley ; fixed on its other end, around which
and also round a pulley, fixed on one end of the shaft b, a driving belt or
band N is passed.
Instead of employing two movable jaws C in the machine, as shown on the
Drawings, one or any other suitable number of such jaws may be provided, and
in lieu of using only one pair of pulverising rollers two or any other suitable
number may be used.
Having now described and particularly ascertained the nature of my said
Invention, and the system, mode, and manner in or under which the same is or
may be used or carried out in practice I would observe in conclusion that what
I consider to be novel and original, and therefore claim as the Invention secured.
to me by the hereinbefore in part recited Letters Patent is,-
First. The improved crushing and pulverising machine constructed and arranged
substantially as herein before described and shown on the Sheet of Drawings
hereunto annexed.
Second. The arrangement and combination of mechanism whereby a lengthwise
or reciprocating motion is communicated to the pulverising roller H, and consisting
of the lever L, worm wheel g, worm screw h, shaft i, and pulleys j, k, or any mere
modification thereof.
In witness whereof, I the said Andrew Lamberton, have hereunto set my
hand and seal, this Twenty eighth day of January, in the year of our
Lord One thousand eight hundred and eighty two.
Witness,
GEO. M. CRUIKSHANK, C. E.
Patent Agent,
135, Buchanan St.,
Glasgow.
ANDREW LAMBERTON. (L.S.)