IMPROVEMENTS IN AND APPERTAINING TO ROLLING MILLS FOR CRUSHING SEED, GRAIN, AND OTHER LIKE MATTERS
Year: 1877

page_text: LETTERS PATENT to William Rowlandson, of Liverpool Engineering Works,
130, Boundary Street, Liverpool, for the Invention of "IMPROVEMENTS IN
AND APPERTAINING TO ROLLING MILLS FOR CRUSHING SEED, GRAIN, AND
OTHER LIKE MATTERS.”
Soaled the 12th February 1878, and dated the 11th December 1877.
(Void by reason of the Patentee having neglected to file a Specification in
pursuance of the conditions of the Letters Patent.)
PROVISIONAL SPECIFICATION left by the said William Rowlandson at the
Office of the Commissioners of Patents on the 11th December 1877.
WILLIAM ROWLANDSON, of Liverpool Engineering Works, 136, Boundary Street,
Liverpool. "IMPROVEMENTS IN AND APPERTAINING TO ROLLING MILLS FOR
CRUSHING SEED, GRAIN, AND OTHER LIKE MATTERS."
This Invention consists in improvements on that form of seed crushing rolling
mill in which several rolls are superimposed one above another, and the matter to
be crushed passes between each roll and the one below it in succession until it has
gone through the entire set. In this form of rolls as at present constructed the
base is spread out broad so as to give a solid support, thus entailing some waste of
room; also when a lower roll has to be extracted for repairs, all the rolls above it
have to be lifted out likewise.
My Invention is designed to economize space and to enable the operator to
extract any roll without lifting out the others."
It consists,―
First. In making the rolling mills in pairs, both sets of rolls standing on the
same bed plate parallel to each other, and feeding seed into the same worm situate
between them.
Second. In an arrangement of clipping the rolls so as to prevent them falling,
and of taking down one side so that any roll can be extracted sideways without
removing those above it. For this purpose we prefer to make the outside frames
TD 033

page_text: with slots to hold the clips, and rigid and strongly stayed to each other by cast
or wrought iron arches, girders, or other framework. This framework supports the
block tackle for lifting the rolls.
The inner frames are moveable and bolted at top and bottom firmly to the bed
plate and rigid framework. When a roll has to be extracted, the roll or rolls above!
it being first clipped or otherwise held to the outer frames, the inner frames are
removed, and the roll extracted by means of the block tackle hanging from the arch
above. The frames are preferably of wrought iron, but cast iron will do.
The mode of action for a duplicate machine of five rolls high is as follows:-All
the rolls of each set being geared together at each end by cogged, mortise, and spur 1
wheels alternately, the seed is thrown into the hoppers (placed outside and above
the top rolls in each case), the seed is carried from the hopper to the two top rolls;
passing between them it falls down on the other side into another hopper which
guides it between the second and third rolls; passing between them another hopper
guides it between the third and fourth; and after passing between the fourth and 1
fifth in the same way it slides down an incline into a worm working between the
two sets of rolls.
The feed to the top roll is regulated by a feed roll in the bottom of the hopper
worked from the shaft of the top roll by spur gearing or otherwise.
Sometimes, instead of the entire side frame having to be taken down to get out 2
a roll, I make the side frame with a series of caps, so that by extracting a cap the
roll opposite can be taken out; or I make the frames in pieces jointed together for
a similar reason.