Improvements in Beaters for Thrashing Machines.
Year: 1887

page_text: Date of Application, 26th Jan., 1887
Complete Left, 26th Oct., 1887
Complete Accepted, 29th Nov., 1887
PROVISIONAL SPECIFICATION.
Improvements in Beaters for Thrashing Machines.
[ JAMES MARSHALL of the Britannia Iron Works, Gainsborough in the County of
Lincoln, Engineer do hereby declare the nature of my said Invention to be as
follows:-
My Invention relates to the construction of beaters for thrashing machines.
According to my Invention the drum ends or centres and foundation rings are
made with a number of projections around their peripheries corresponding with the
number of beater beds used therewith. These projections are shaped on their upper
surface to correspond with the underside of and form a seating for the beater beds the
said projections each having a flattened higher part descending by a curve and
terminating at the part nearest to the centre of the drum in a step. Each beater bed
at its underside (in cross section) is formed correspondingly with the projections
aforesaid having a flattened part which rests on the flattened part of each projection,
and a curved part which rests on the curved part of each projection and a butt end
which terminates the curved part of the beater bed and rests on the aforesaid step at
the inner end of the curved part of each projection. The beater beds are made of iron or
steel or other suitable metal or material and at their upward outer sides have flattened
recesses upon which are seated the flattened under surfaces of the beater plates they
being secured by bolts or otherwise to the beater beds which are joined to the
projecting portions of the drum ends or "centres" and the intermediate rings of the
drum and this may be effected by counter sunk bolts.
The beater plates when in place preferably form a continuation in a gentle curve of
the curved portion of the beater beds.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,
Agents for the said James Marshall.

page_text: 1, JAMES MARSHALL of the Britannia Iron Works Gainsborough in the County of
Lincoln, 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 :—
My Invention relates to the construction of beaters for thrashing machines which
I will explain with reference to the accompanying Drawing which represents beater
plates as attached to a drum head or centre from which the construction and
application of the Invention to both "centres" and foundation "rings" will be
understood.
According to my Invention the drum ends or centres and foundation rings are
made with a number of projections a around their peripheries corresponding with the
number of beater beds used therewith. These projections a are shaped on their
upper surface as illustrated to correspond with the underside of and form a
seating
for the beater beds the said projections a cach having a flattened higher part a
descending by a curve or angled part a² and terminating at the part nearest to the
centre of the drum in a step or rest a³. Each beater bed b at its underside (in cross
section) is formed correspondingly with the projections aforesaid having each a
flattened part which rests on the flattened part a¹ of each projection and a curved or
angled part which rests on the curved or angled part a² of each projection a and a
butt end which terminates the curved or angled part of the beater bed and rests on
the aforesaid step or rest a³ at the inward end of the curved or angled part of each
projection. The beater beds are made of iron or steel or other metal (preferably of
wrought iron or steel) and at their upward outer sides have flattened recesses upon
which are seated the flattened under surfaces of the beater plates c the said beater
plates being secured by bolts d or otherwise to the beater beds b which are joined to
the projecting portions of the drum ends or centres and the intermediate foundation
rings of the drum by the bolt d'. The beater plates may be secured to the beater beds
by the bolts which secure the beater beds to the drum ends or centres and the
intermediate foundation rings of the drum.
The beater plates when in place preferably form a continuation in a gentle curve of
the curved outer portion of the beater beds. The rings and centres are preferably of
malleable iron or steel and are all formed in a similar manner to receive similarly
shaped beater beds.
Having now particularly described and ascertained the nature of the said
Invention and in what manner the same is to be performed I declare that what I
claim is―
A beater for thrashing machines constructed substantially as hereinbefore described
and illustrated in the accompanying Drawings.