IMPROVEMENTS IN FEED APPARATUS FOR ROLLER MILLS, MIDDLINGS PURIFIERS AND LIKE MACHINES EMPLOYED IN THE MANUFACTURE OF FLOUR
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I THOMAS NIELD ROBINSON, of Railway Works, Rochdale, in the county of
Lancaster, Engineer do hereby declare the nature of my 'said invention for
IMPROVEMENTS IN FEED APPARATUS FOR ROLLER MILLS, MIDDLINGS PURIFIERS
AND LIKE MACHINES EMPLOYED IN THE MANUFACTURE OF FLOUR, to be as
follows:-
The object is to provide apparatus or appliances into which grain meal flour or
the like is discharged in bulk from sacks, shoots or otherwise and from which the
said grain meal or flour is fed evenly and regularly in the required quantity over
the whole breadth of rollers, screens, or sieves.
In carrying my invention into practice I combine a hopper and vibrating
distributer with adjustable serrated delivery plates and a deflector or spreader.
The hopper is stationary and the distributer in suspended therefrom and is caused
to vibrate by any suitable means. The vibrating distributer is single or double
ended and is fitted at its end or ends with one or more preferably two serrated
dolivery plates attached thereto by contro pins slides or other devices which will
allow of the said plates being raised, lowered and adjusted horizontally until the
grain meal or flour is thereby delivered in thin streams equally. through each
serration or indentation. In front of the delivery plates are deflectors or spreaders
placed at such a distance therefrom and at such an angle thereto as to receive the
separate thin streams of grain moal or flour and deliver them in a sheet to the
rollers, screens or sieves.

page_text: Figs 1 and 2 are vertical sections of my improved apparatus applied for
convenience of description to a roller mill. It will be obvious that it is equally 2
applicable to purifiers or like machines where grain meal or flour is to be evenly
delivered to screens sieves or the like. The apparatus shown is double acting;
and two supply hoppers a a' are used, b dividers free to be moved on the pivots o
by means of rods a jointed thereto and carried in slides e on the sides of the
hoppers. By proper adjustment of the position of the apexes of the dividers the 3
grain meal or flour may be caused to descend through the hopper in more or less
equal streams; more than one divider may be used in each hopper, f casing of
roller mill, g distributor hung to the casing f by the flexible connections h, i piece
dividing the distributor into two portions one for each hopper, ; excentrics on
shaft for giving motion to the distributor in one direction by acting on the block Za
attached to the said distributor, m springs for moving the distributor in the reverse
direction to that in which the excentrics move it. n. n' serrated delivery plates
pivotted to the distributor g at o. o'. The pivots o. o¹ preferably pass through
slots in n n¹ so that the said plates n n may be raised and lowered as well as

page_text: turned on the pivots as axes. If desired a single adjustable serrated delivery plate
or three or more such plates might be used at each end of the distributor or instead
of being serrated the plates may be plain. p deflectors or spreaders. 9 rollers.
The apparatus is used as follows; The dividers b are adjusted so that the grain
meal or flour descends through the hoppers in nearly equal streams onto the
distributors g which are caused to vibrate by the combined action of the excentrics
on the shaft and springs m. From the distributors g the grain meal or flour
flows over the plates n n' which are adjusted on their carrying pivots until the
amount of grain meal or flour flowing over any part thereof is equal or nearly so.
The grain meal or flour after flowing over the plates n n' strikes against the
deflectors pand is spread so as to form a thin uniform stream which descends
between the rollers q or onto a screen sieve or the like.
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
First. In roller mills, middlings purifiers and like machines employed in the
manufacture of flour, the combination of hoppers, vibrating distributors and
adjustable delivery plates.
Second. In roller mills, middlings purifiers and like machines employed in the
manufacture of flour the combination of hoppers, vibrating distributors, adjustable
delivery plates and deflectors or spreaders.