Improvements in Apparatus for Feeding Granular Substances to Roller Mills.
Year: 1897

page_text: Date of Application, 5th Apr., 1897
Complete Specification Left. 4th Jan. 1898-Accepted 5th Feb. 1898
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Feeding Granular Substances to
Roller Mills.
I, ARTHUR MAURICE ROBINSON, of Railway Works, Rochdale, in the County of
Lancaster, Engineer, do hereby declare the nature of this invention to be as
follows:
:-
This invention relates to the vibrating feed trays of roller mills and has for
its objects to reduce the friction and wear of, and facilitate examination and
repair of the driving appliances.
For these purposes I make use of antifriction rollers free to run loosely on a
shaft or shafts attached to the said tray and projecting outside the casing on each
side. Excentrics or cams on the driving shaft bear against the said antifriction
rollers and so cause the necessary vibration of the tray. Springs are employed to
keep the antifriction rollers in contact with the excentrics or cams.
By the above means the friction against the excentrics or cams is greatly
reduced and the excentrics or cams and rollers being outside the casing can be
readily examined and repaired.
1
1008
W. B. JOHNSON,
Agent.
Improvements in Apparatus for Feeding Granular Substances to
Roller Mills.
I, ARTHUR MAURICE ROBINSON, of Railway Works, Rochdale, 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 the vibrating feed trays of roller mills and has for its
objects to reduce the friction and wear of, and facilitate examination and repair
of, the driving appliances.
For these purposes I make use of anti-friction rollers free to run loosely on a
shaft or shafts attached to the said tray and projecting outside the casing on each
side. Excentrics or cams on the driving shaft bear against the said anti-friction
rollers and so cause the necessary vibration of the tray. Springs are employed to
keep the anti-friction rollers in contact with the excentrics or cams.
By the above means the friction against the excentrics or cams is greatly
n
073

page_text: reduced and the excentrics or cams and rollers being outside the casing can be
readily examined and repaired.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a side elevation, and Fig. 2 is a horizontal section of part of a roller
mill and illustrative of my invention, a is the vibrating feed tray carried by links
from the casing b for supplying the grain to the rollers e in the usual manner,
d is a bar or shaft secured to the tray a and provided with anti-friction rollers e
at each end outside the casing b. f are cams or excentrics secured on the driving
shaft g to which shaft motion is imparted in any convenient way. The cams f
bear against the anti friction rollers e and by the revolution of the driving shaft
give motion to the bar d and tray a. h are springs to cause the anti-friction
rollers to press against the cams f.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:
Appliances for giving motion to the vibrating feed trays of roller mills consist-
ing of anti-friction rollers mounted outside the casing of the mill on a shaft or
shafts attached to such feed tray, and cams or excentrics acting against such anti-
friction rollers substantially as and for the purpose set forth.
Datad this third day of January 1898.