Improvements in Mills for Grinding and Crushing Grain, and other similar substances.
Year: 1896

page_text: Date of Application, 28th Oct., 1896
Complete Specification Left, 28th July, 1897-Accepted, 28th Aug., 1897
PROVISIONAL SPECIFICATION.
Improvements in Mills for Grinding and Crushing Grain, and other
similar substances.
I SAMUEL EDWARDS of Ladywell Eccles in the County of Lancaster Agricultural
Engineer do hereby declare the nature of this invention to be as follows:-
My invention relates to mills for grinding and crushing grain and other similar
substances the object of which is to reduce the power required and add to the
durability of the above class of mills. To enable me to do this I purpose fitting
roller bearings to all the inain spindles instead of the ordinary fixed metal bearings.
In order to do this, I make the outer case of the bearings a greater diameter than
that of the spindle. The difference between the diameter of the outer case and the
diameter of the spindle represents the diameter of the rollers which form the roller
bearing. These rollers are bored out and kept equi-distant by means of pins passing
through them. These pins are journaled down at each end and riveted into rings.
These rings can be either in one part or made in semicircles the latter preferred.
To keep the rings in position endwise I put two semicircular plates at each side of
the bearing one on the cap and the other on the bottom bearing. These plates have
an opening slightly larger than the diameter of the spindle and form a receptacle
for the lubricating oil. I do not confine myself to the above particular form of roller
bearing but to the use of roller bearings in the above class of mills.
Dated this 27th day of October 1896.
SAMUEL EDWARDS,
Applicant.
COMPLETE SPECIFICATION.
Improvements in Mills for Grinding and Crushing Grain, and other
similar substances.
I, SAMUEL EDWARDS of Ladywell, Eccles in the County of Lancaster Agricultural
Engineer do hereby declare the nature of this invention and in what manner the
same has to be performed, to be particularly described and ascertained in and by the
following statement :-
My invention relates to improvements in Mills for grinding and crushing grain
and other similar substances, the object being to reduce the power required to drive
such machines, and to increase the durability of those parts to which my invention
is applied.
The annexed drawing represents a mill of the class referred to above, showing the
application of roller bearings to the main shafts, and Fig. 2 of the drawings
represents a roller bearing of the construction which I prefer.

page_text: Similar letters of reference refer to similar parts in either of the two figures.
In carrying my invention into practice, I substitute for the bearings made with
solid brasses as now used, and in which the shafts or axles revolve, improved roller
bearings, preferably of the following construction but not necessarily so. They are
marked A, B, in Fig. 1, and are shown on an enlarged scale in Fig. 2, the metal
pedestal being omitted.
The pedestal C, and its cap D, are put together and bored out to a diameter
considerably larger than that of the shaft E, and I provide a number of rollers F, of
a diameter that will fit into the annular space between the periphery of the shaft
and the inner face of the bearing or pedestal.
Each roller F, has a centre hole bored through it to receive an axle G, upon which
it revolves, the ends being set down and rivetted into a ring H, which may be solid
or in sections.
The number and dimensions of the rollers may vary with the size of the pedestal.
To secure the whole of the said parts in position within the pedestal, I use end
plates I and J, which are screwed to the sides of both the pedestal and its cap, and
which thus prevent any lateral movement of the rollers, they also retain the oil or
other lubricant within the bearing, the revolving rollers which dip into it,
transmitting it to the shaft E.
This construction of roller bearing gives a very satisfactory result and accomplishes
the result aimed at but I do not bind myself to use this particular construction as it
will be evident that the details may be varied to suit different designs and sizes of
machines, such as those known as disc machines and others to which my invention is
equally applicable.
In the machine shown K is the hopper, L the frame, R the rollers, and M, the
feed regulator.
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:
1. In a mill for grinding and crushing grain and other similar substances and
known as a roller mill, supporting the main shaft or shafts in roller bearings
constructed as herein before described and shown in Fig. 2, of the drawings.
2. In a mill known as a disc-mill for grinding corn and other similar substances
supporting the main shaft or shafts in roller bearings constructed as hereinbefore
described and set forth.
3. The combination with the shafts of mills for grinding and crushing corn and
other similar materials of roller bearings supporting such shafts substantially as
herein before described and set forth.
ROBT. F. DRURY,
Agent for Applicant.