Year: 1888

page_text: Late of Application, 2nd May, 1888
Complete Specification Left, 2nd Feb., 1889
Complete Specification Accepted, 2nd Mar, 1889
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:-
The invention relates to mills in which reduction is effected by means of reciprocating
plates or bars substantially in the manner described in my provisional specification
No. 17594 of the year 1887.
The object is to enable such mills to be readily constructed with acting surfaces
sufficiently true for the work to be done, whether grinding grain into flour or
pulverizing minerals.
The invention consists essentially in building the reciprocating plates or bars of
sections of suitable metal coupled together by tie bolts or equivalent devices.
Further improvements consist in employing hollow sections in the construction of
the said bars, and hollow tie rods or couplings.
Under a modification I make reciprocating plates or bars of hollow chilled metal.
1000
Per pro J. T. KING,
W. B. Johnson,
Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Mills for Grinding or Reducing 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 :-
The invention relates to mills in which reduction is effected by means of reciprocating
plates or bars substantially in the manner described in my provisional specification
No. 17594 of the year 1887.
The object is to enable such mills to be readily constructed with acting surfaces
sufficiently true for the work to be done, whether grinding grain into flour or
pulverizing minerals.
The invention consists essentially in building the reciprocating plates or bars of
sections of suitable metal coupled together by tiebolts or equivalent devices.
Further improvements consist in employing hollow sections in the construction of
the said bars, and hollow tie rods or couplings.
Under a modification I make reciprocating plates or bars of hollow chilled metal.
The said bars whether sectional or in one piece are advantageously made of cast iron
faced and grooved as required and afterwards chilled.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a longitudinal section and fig. 2 a view part in transverse section and part
in elevation of a grinding mill under my invention. a are hollow sections of steel
or other suitable metal coupled together by hollow tie rods or couplings b. c end
pieces. d nuts. The bars are arranged in series in a suitable frame and are adjusted
and operated substantially as set forth in my complete specification No. 17594 of the
year 1887.
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 I
claim is..
First. Constructing grinding mills with bars built up of hollow metal sections united
together substantially as set forth.
Second. Constructing grinding mills with bars built up of hollow sections and
united by hollow tie rods substantially as setforth.
Third. Constructing bars of grinding mills of chilled metal substantially as set-
forth.
Dated this 1st day of February 1889.