Improvements in Stone Breaking, Ore Crushing, and Grinding Machines.
Year: 1896

page_text: Date of Application, 26th Feb., 1896
Complete Specification Left, 22nd Oct., 1896-Accepted, 29th Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Stone Breaking, Ore Crushing, and Grinding
Machines.
ROBERT FRANK POCHIN HARRY SIMPSON POCHIN Engineers The Hollies,
West. Walk Leicester, do hereby declare the nature of this invention to be as
follows:-
Our invention has for its object, improvements in stone breaking, ore crushing,
and cement grinding machines, with moveable jaws, and to make those machines
available for grimling as well as breaking stone and other material into cubes in
the ordinary way.
To obtain the required movement, we suspend in suitable bearings at the top of
frame of machine, the main shaft, upon which we fix an eccentric, and upon the
said eccentric we hang the swing jaw.
The eccentric shaft, being driven by a pulley, gives the swing jaw an upward
and downward movement, as well as a powerful grinding motion.
By this means we get a double action, one for breaking stone into cubes, in the
ordinary way, and the other for crushing or grinding.
In further carrying out our improvement, we suspend in suitable bearings at the
lower part of the frame of machine, a second eccentric shaft, upon which we mount
a boss of cast iron, or other suitable material, with a receptacle to receive a
renewable lever or nose piece, to press against the back of the lower part of swing
jaw in which we fix a steel groove er grooves for the nose piece or lever to work
in, and by means of the said eccentric we move the lever or nose piece backward
or forward to set the swing jaw, in position to break or grind the material any size
required.
The said eccentric also enables us to fix the lever or nose piece in such positions
that we can give the swing jaw any required movement to grind either hard or
soft material.
We also attach to the lever or nose piece a lug to which we fix by bolts or
suitable fittings links or lifting reds, steel springs or indin rubber buffers, connected
to brackets or crosshead.
This novel arrangement gives the swing jaw a lifting motion, by this means we
take the weight off the eccentric shaft, and reduce the friction and wear of bearings
to a minimum.
Dated this 25th day of February 1896.
ROBERT FRANK POCHIN.
HARRY SIMPSON POCHIN.
COMPLETE SPECIFICATION.
Improvements in Stone Breaking, Ore Crushing, and Grinding
Machines.
ROBERT FRANK POCHIN of St. Margaret's Foundry, Watling Street, Leicester,
ate of The Hollies, West Walk, Leicester also HARRY SIMPSON POCHIN Of
St. Margaret's Foundry, Watling Street, Leicester late of The Hollies, West
Valk, Leicester Engineers, do hereby declare the nature of this invention and in
Price

page_text: what manner the same is to be performed, to be particularly described aud
ascertained in and by the following statement:-
Our invention has for its object, improvements in stone breaking, ore crushing
and cement grinding machines with moveable jaws.
And to make those machines available for grinding, as well as breaking stone
and other material into cubes in the ordinary way.
To obtain the required movement we suspend in suitable bearings at the top of
frame of machine the main shaft upon which we fix an eccentric A (sec drawing
Fig. 1) and upon the said eccentric we hang the swing jaw B (see drawing Fig. 1).
The eccentric shaft being driven by a pulley gives the swing jaw an upward and
downward movement. By this means we get a double action, one for breaking
stone into cubes in the ordinary way and the other for crushing or grinding.
In further carrying out our improvement we suspend in suitable bearings at the
lower part of the frame of machine a second eccentric shaft 'C' (see drawing
Figs. I & II) upon which we mount a boss D' (see drawing Fig. 1) of cast iron
or other suitable material, with a receptacle to receive a renewable lever or nose
picce (see drawing big. 1) to press against the lower part of swing juw 'B'
(see drawing Fig. 1) in which we fix a steel groove or grooves 'F' (see drawing
Fig. 1) for the nose piece or lever to work in, and by means of the said eccentric C
(sce drawing Fig. I & II) we move the lever or nose piece backward or forward
to set the swing jaw in position to break or grind the material any size required.
The said eccentric C(see drawing Fig. 1 & 11) also enables us to fix the lever
or nose piece in such positions that we can give the swing jaw any required move-
ment to grind either hard or soft material.
We also attach to the lever or nose piece E' (see drawing Fig. 1) a lug'
(see drawing Fig. 1) to which we fix by holts or suitable fittings, links or lifting
rods (see drawing Fig. 1) steel springs or india rubber buffers K (see
drawing Fig. 1) connected to brackets or crosshead L' (see drawing Fig. 1).
This novel arrangement gives the swing jaw B' (see drawing Fig. 1) a lifting
tendency, and by this means we take the weight off the eccentric shaft
drawing Fig. 1) and reduce the friction and wear to a minimum.
(see
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed; we do not claim any of the
parts separately, which are well known and in common use in the machines of the
type forming the subject of the inventions, but what we do claim is :-
The combination of the above named arrangements .:-
Firstly. The breaking & grinding motion by the novel method of hanging the
swing jaw upon the eccentric shaft mounted on the top of the frame of the
machine in connection with the renewable nose piece or lever bearing against
the lower end of swing jaw.
Secondly. The novel arrangement of using a second eccentric shaft with a
recessed boss to receive a renewable nose piece or lever acting in steel grooves at
the lower end of the swing jaw, enabling us to set the swing jaw in any position
to break or grind material either fine or coarse as required, and to raise or lower
the nose piece or lever to give any movement for breaking or grinding hard or soft
inaterial.
Thirdly. The novel mode of lifting, by rods or lever steel springs or india
rubber buffers coupled to the nose piece or lever and frame of machine reducing
the friction and wear of bearings to a minimum.
Dated this 22nd day of October 1896.
ROBERT FRANK POCHIN.
HARRY SIMPSON POCHIN.