Improvements in Apparatus for Grinding and Buffing the Rollers of Flour Mills and other similar Rollers.
Year: 1899

page_text: Date of Application, 17th May, 1899
Complete Specification Left, 17th Feb., 1900-Accepted, 31st Mar., 1900
[Communicated from abroad by HENRY SIMON, of Mainzerlandstrasse, No. 301,
Frankfort-on-the-Main, Germany, Engineer.]
Improvements in Apparatus for Grinding and Buffing the Rollers of
Flour Mills and other similar Rollers.
We, HENRY SIMON, LIMITED, of 20, Mount Street, Manchester, in the County
of Lancaster, Engineers, do hereby declare the nature of this invention to be
as follows:-
This invention relates to a new or improved apparatus for grinding and buffing
the rollers used in flour mills and other similar rollers, whereby any part of the
roller may be ground or buffed in situ, and either parallel with the axis of
the roller or at an angle thereto.
In flour milling machines there is usually a fixed shaft parallel with the
upper and lower rollers and about equidistant therefrom. Where this shaft
exists, it is utilised for the support of the apparatus; where it is absent, an
equivalent support provided. The foundation of the apparatus is temporarily
fixed upon this support, opposite to the part of the roller which is to be operated
on, and either above or below the support according to whether the upper or
the lower roller is to be treated.
At about the centre of the foundation there may be a pivot fitting into a short
bed equivalent to a small lathe bed. Means are provided for clamping or
bolting this bed to the foundation, when it has been correctly set relatively to
the roller.
There is mounted on the bed a compound slide rest which may be traversed
from end to end of the bed by means of a nut fixed under the rest and engaging
with a longitudinal screw which may be rotated by hand or by gearing. The
distance of the top slide from the surface of the roller may be adjusted by a
transverse screw and nut. This slide carries, in a suitable bearing or bearings,
a spindle which is normally parallel with the surface of the roller. One end of
tuis spindle is adapted to carry, removably fixed thereon, a buff- or emery-
wheel or the like, and the opposite end of the spindle may be connected with
a flexible shaft which may be rotated from any suitable and convenient part
of the rotary mechanism.
A convenient means for rotating the flexible shaft, and consequently the buff-
or emery-wheel or the like, consists in a friction bowl arranged in frictional
contact with the driving pulley of the roller machine. This friction roller has
such a diameter that the required speed of revolution is obtained. The flexible
shaft may be connected with the spindle of the friction bowl, or, if rotation be
desired in a direction opposite to that given by the bowl, or if the speed of the
friction bowl is unsuitable, the flexible shaft may be connected with a spindle
geared with the friction bowl spindle.
1
1th dov of Nav A.D. 1899.

page_text: Improvements in Apparatus for Grinding and Buffing the Rollers of
Flour Mills and other similar Rollers.
We, HENRY SIMON, LIMITED, of 20, Mount Street, Manchester, in the County
of Lancaster, Engineers, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
This invention relates to a new or improved apparatus for grinding and buffing
the rollers used in flour mills and other similar rollers, whereby any part of the
roller operated on may be ground or buffed in situ, and, either parallel with the
axis of the roller or at an angle thereto.
In roller flour milling machines there is usually a shaft fixed parallel with the
upper and lower rollers and about equidistant therefrom. Where this shaft
exists, it may utilised for the support of the apparatus; where it is absent, an
equivalent support is provided. The foundation or base of the apparatus is tem-
porarily fixed upon this support, opposite to that part of the roller which is to be
operated on, and either above or below the support, according to whether the
upper or the lower roller is to be ground or buffed.
At about the centre of the foundation or base, there may be a pivot fitting
into a short bed equivalent to a small lathe bed. Means are provided for clamping
or bolting this bed to the foundation when it has been correctly set for work.
There is mounted upon the bed a compound slide which may be traversed from
end to end of the bed by means of a nut fixed under the compound slide and
engaging with a longitudinal screw which may be rotated by hand or gearing,
The distance of the top slide from the surface of the roller may be adjusted by
means of a transverse screw and nut. This slide carries, in a suitable bearing or
bearings, a spindle which is normally parallel with the surface of the roller.
One end of this spindle is adapted to carry, removably fixed thereon, a buff-
or emery-wheel or the like, and the opposite end of the spindle may be connected
with a flexible shaft which may be rotated from any suitable and convenient
rotating part.
A convenient means for rotating the flexible shaft consists in a friction roller
arranged in frictional contact with the driving pulley of the roller machine.
This friction roller has such a diameter that the required speed of rotation in
the buff or emery-wheel or the like is obtained. The flexible shaft may be
coupled directly with the friction roller spindle, or, with a second spindle geared
with the roller spindle.
The accompanying drawings illustrate in what manner the improved apparatus
may be employed in connection with a flour roller-mill, and will be hereinafter
described.
Figure 1 shews a front elevation, partly in section;
Figure 2, a plan; and
Figure 3, an end elevation. of the apparatus.
Figure 4, shews an end view; and
Figure 5, a front view of means for positioning the compound slide.
Figure represents a front view; and
Figure 7, an end view of mechanism which may be used in connection with
the transmission of motion to the buffing or grinding wheel.
In the construction of the apparatus illustrated, its base A, rests upon the
machine shaft hereinbefore referred to but not shewn in the drawings, by the
bearings B B, and their caps C C, and it is temporarily fixable by the agency

page_text: of the set-screws s s. At about the centre of the base A, there is a pivot D,
which fits into the underside of the bed E, which bed is equivalent to a small
athe-bed and is fitted with a longitudinal screw F, having two projecting
ends ff, which may be noncircular. Because of the pivotal arrangement of the
bed E, it may be set parallel with or at any necessary angle to the base and be
fixed relatively to it by the set-screws G G, passing through the arc slots gg
of the bed E, into the base A. There is fitted upon the bed E, a compound
slide, of which the lower member H has fixed below it a nut h on the screw F,
and is itself provided with a transverse screw I, carrying a nut i, fixed on the
under side of the upper member J. The compound slide, by the rotation of
the screw F, may be positioned on any part of the bed E, and in like manner,
the upper slide J may be positioned on the lower slide H, by the rotation of
the screw I. The upper slide J carries, in a suitable bearing j, the spindle K,
parallel with the bed, the projecting end of the spindle k, being adapted to be
coupled with the flexible shaft, not shewn in the drawings. The other end of
the spindle K, projects and has removably fixed upon it a grinding or buffing
wheel L.
The screws F and I may each be rotated by a loose cranked handle. When
the apparatus is fixed to the machine shaft, some device must be adopted with
the illustrated construction, to enable this cranked handle to be rotated clear
of the shaft. Such a device is represented by Figures 4 and 5. It consists of
a bracket M, fixed upon the end of the bed E, by the set-screws s¹ s¹, carrying
the stud N, a spur wheel O, and a cranked handle N¹. The spur wheel gears
with another spur wheel or pinion fitted upon the end f of the screw F. Rotation
of the handle N¹ compels rotation of the screw F, and displacement of the com-
pound slide with its grinding or buffing wheel, in a longitudinal direction.
The grinding or buffing wheel L may be rotated by any convenient means,
such for example as by a flexible shaft coupled to k at one end and at its other
In the transmitting apparatus
end to any suitable rotary shaft or spindle.
illustrated by Figures 6 and 7, there are two such rotary spindles, running in
opposite directions so that by coupling the flexible shaft to one or the other of
them, the grinding or buffing wheel may be run in either direction.
standards P P are fitted with sliding bearings QQ, which are supported by
springs RR, upon the upper ends of the vertical screws S S, working in the
5 fixed nuts T T. The lower ends of the screws are fitted with hand wheels S¹ S¹
These bearings carry two
by rotating which the bearings may be adjusted.
The two
parallel spindles U U of which the upper one has fixed upon it a friction
pulley V, in contact with the driving pulley V1. The two spindles are geared
together by spur wheels WW1. The rotation of the driving pulley V₁ compels
0 the rotation of the friction pulley V in contact with it, and therefore, of the two
spindles in opposite directions. The spindles have projecting ends u u¹, shaped
so as to be coupled with the flexible shaft. The spindles may be run at equal
or different speeds as may be determined by the ratio of the wheels W W
Having now particularly described and ascertained the nature of our said
5 invention and in what manner the same is to be performed, as communicated
to us from abroad, we declare that what we claim is:—
An apparatus for grinding and buffing rollers, constructed arranged and
operating substantially as set forth.
& Wahmury AD 1900.