Year: 1887

page_text: Date of Application, 22nd Dec., 1887
Complete Specification Left, 24th Sept., 1888
Complete Specification Accepted, 9th Nov., 1888
I, WILLIAM ADAIR of 24 Waterloo Road Liverpool in the County of Lancaster
Engineer do hereby declare the nature of this invention to be as follows:-
This invention relates to that class of mills in which reciprocating bars or plates
grooved fluted serrated or roughened on their faces are used to reduce grain or
substances and has for its object (1) to largely increase the quantity of material which
can be treated in a given size of machine (2) to provide for ready adjustment of the
grinding surfaces (8) to prevent the grain or substance being treated from coming
into contact with, or being injured by oil or other objectionable matter.
For these purposes First I combine three or more bars or plates and give recipro-
cating motion to two or more of such bars or plates. The said bars or plates are
grooved fluted serrated or suitably roughened on their faces which faces are inclined
to each other from their upper to their lower edges. The grain or other substance is
fed in any convenient way at the upper edge of the bars or plates.
Second. For adjusting reciprocating bars or plates combined as above mentioned so
that the grain or material is ground to the required fineness I provide cotters above
and below such bars or plates and I so connect such cotters that they may be moved
together or separately.
Third. To prevent oil or other injurious matter from coming into contact with the
substance being ground and also to confine such substance to the grinding surfaces 1
form a groove or grooves near each end of some or all of the bars or plates and pack
such grooves with india rubber or other suitable material.
Fourth. I construct grinding mills under my invention with a sufficient number of
bars or plates or with bars or plates so disposed in one frame that material is ground
to varying degress of fineness by separate portions of the said mill. Feed appliances
and conveyers are provided for each such portion of the mill.
Driving gear of any usual and suitable construction is employed.
TAL F11
1009

page_text: Improvements in Apparatus for Grinding Grain and other
Substances.
I WILLIAM ADAIR of 24 Waterloo Road Liverpool in the County of Lancaster
Engineer, 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 that class of mills in which reciprocating bars or plates
grooved fluted serrated or roughened on their faces are used to reduce grain or
substances and has for its object (1) to largely increase the quantity of material which
can be treated in a given size of machine (2) to provide for ready adjustment of the
grinding surfaces (3) to prevent the grain or substance being treated from coming
into contact with, or being injured by, oil or other objectionable matter.
For these purposes, First I combine three or more bars blocks or plates and give
reciprocating motion to two or more of such bars or plates. The said bars blocks or
plates are grooved fluted or serrated or suitably roughened on their faces which faces
are inclined to each other from their upper to their lower edges. The grain or other
substance is fed in any convenient way at the upper edge of the bars or plates.
Second. For adjusting reciprocating bars blocks or plates combined as above
mentioned so that the grain or material is ground to the required fineness I provide
cotters above and below such bars or plates and I so connect such cotters that they may
be moved together or separately.
Third. To prevent oil or other injurious matter from coming into contact with the
substance being ground and also to confine such substance to the grinding surfaces I
form a groove or grooves near each end of some or all of the bars or plates and pack
such grooves with india-rubber or other suitable material.
Fourth. I construct grinding mills under my invention with a sufficient number
of bars blocks or plates or with bars blocks or plates so disposed in one frame
that material is ground to varying degrees of fineness by separate portions of the
said ill. Feed appliances and conveyers are provided for each such portion of
the mill.
Driving gear of any usual and suitable construction is employed.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a plan, fig. 2 a transverse section and fig. 3 a longitudinal section of
apparatus under my invention for grinding grain or other substances. a frame having
secured thereto bars plates or blocks 6 by means of bolts c. d bars plates or blocks
fitting between the bars plates or blocks. The bars plates or blocks and d herein-
after called bars have suitably grooved fluted serrated or roughened surfaces. The
frame has bourings which say the divine shaft &* The boned hova recesses
The
Fig. 1 is a plan, fig. 2 a transverse section and fig. 3 a longitudinal section of
apparatus under my invention for grinding grain or other substances. a frame having
secured thereto bars plates or blocks 6 by means of bolts c. d bars plates or blocks
fitting between the bars plates or blocks b. The bars plates or blocks and d herein-
after called bars have suitably grooved fluted serrated or roughened surfaces.
frame has hearings which carry the driving shaft f The band have recossne
in which fit the sliding blocks h. The sliding blocks contain excentrics i secured to
the shaft f. The said bars d have parallel ends which fit between cotters or keys k.
The cotters or keys k have taper ends and are carried in grooves in the frame a.

page_text: m screw and wheel for giving motion to the cotters or keys. Each cotter and key
may be provided with a screw and wheel or one screw and wheel may give motion to
several cotters. n are india-rubber packing pieces inserted in grooves in the bars to
confine the material being acted on between the grinding surfaces. The bars b, d,
are inclined to each other from their upper to their lower surfaces as shown at o and
their tops are bevelled so as to allow the material to freely enter between the grinding
surfaces.
The action of the apparatus is as follows; The bars d are raised or lowered by the
action of the screws and wheels on the cotters & so that their grinding surfaces are
brought the required distance from the grinding surfaces of the bars.
Grain or
material to be reduced is fed onto the top of the bars from hoppers or in any suitable
manner and reciprocating motion is given to the bars d by the revolution of the driving
shaft the grain or material passes down between the bars and is reduced to the
required degree of fineness. If desired the bars may be so adjusted that the grinding
surfaces of one portion may be nearer together than those of another portion and the
grain or material after being acted on by one portion may be transferred to another
portion to be still further reduced, for this purpose each series of bars may be side by
side as shown or they may be situated one above the other.
Fig. 4 is a plan, fig. 5a longitudinal section and fig. 6 an end view of a modifi-
cation of apparatus in which three series of bars are combined. The bars d are raised
by transverse cotters actuated by cams, and the said bars d are held against the
cotters by springs and pressure bars 9. are lover arms for actuating the cams of
each series of bars. stroughs to receive the ground material.
Fig. 7 is a transverse section of apparatus having curved bars on a shaft 1.
Fig. 8 is a longitudinal section of apparatus in which the bars. are adjusted by
means of keys or cotters pivotted at u, and actuated by a screw and wheel m.
Fig. 9 is a plan showing a method of adjusting the position of the bars by means
of a nut and screw. It will be evident that the reciprocating motion may be given
to the bars in many ways and that all the bars may have motion imparted to them,
instead of some being fixed. In practise the moving bars should be actuated at
different times, that is to say, when some are at the instroke some should be at the
out stroke and some at half stroke or in intermediate positions, and that runners may
be used to reduce friction on the bearing surfaces.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what 1
claim is.
First. Grinding mills consisting of three or more bars plates or blocks combined
and having motion imparted thereto substantially as herein set forth.
Second. Grinding mills having bars plates or blocks with inclined surfaces
substantially as herein set forth.
Third. Adjusting bars plates or blocks of grinding mills under my invention by
means of cotters keys or equivalent devices.
Fourth. Packing bars plates or blocks of grinding mills substantially as set
forth.
Fifth. Combining two or more series of grinding blocks plates or bars substantially
in the manner and for the purpose set forth.
Dated this 22nd day of September 18SS.
Per pro J. T. KING,
J. Johnson,
Agent.