Improvements in or Additions to Thrashing Machines to fit them for use in Thrashing or Stripping and Shelling Clover or Trefoil.
Year: 1890

page_text: Date of Application, 17th Mar., 1890
Complete Specification Left, 17th ec., 1890-Accepted, 24th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in or Additions to Thrashing Machines to fit them for
use in Thrashing or Stripping and Shelling Clover or Trefoil.
I JAMES MARSHALL of the firm of Marshall Sons and Company Limited of
Britannia Iron Works Gainsborough in the County of Lincoln Engineers, do hereby
declare the nature of this invention to be as follows:-
--
The object of my invention is to provide in connection with thrashing machines
means whereby they are fitted for use for thrashing or stripping and shelling clover or
trefoil at one operation. According to my invention I apply a clover shelling drum
and concave at the tail end of a thrashing machine so that the said drum receives the
cobs from the upper dressing shoe, after the clover or trefoil has been passed through
the ordinary thrashing drum they being carried over the upper dressing shoe onto a
caving riddle provide for th purpose and thence being delivered into the barrel of
the clover sheller. The shaft of the clover sheller is at the end situated at the outlet
provided with blades to throw back the seed and chaff or cavings separate.l in shelling
onto the opposite side of the aforesaid caving riddle which separates the seed from the
chaff or cavings and deposits the latter on the ground at the end of the machine
under the barrel of the sheller whilst the seed passes through the caving riddle and
lower dressing apparatus to the elevators and from thence is delivered into sacks at the
opposite end of the machine as usual with ordinary grain.
Dal thi 17. Il 1900
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in or Additions to Thrashing Machines to fit them for
use in Thrashing or Stripping and Shelling Clover or Trefoil.
I, JAMES MARSHALL of the firm of Marshall Sons & Co. Limited of Britannia
Iron Works, Gainsborough in the County of Lincoln, 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 :—
The object of my invention is to provide in connection with thrashing machines
means whereby they are fitted for use for thrashing or stripping and shelling clover
or trefoil at one operation.
According to my invention I apply a clover shelling drum and concave at the tail
end of a thrashing machine so that the said drum receives the cobs from the upper
dressing shoe after the clover or trefoil has been passed through the ordinary thrashing
drum they being carried over the upper dressing shoe onto a caving riddle provided
for the purpose and thence being delivered into the barrel of the clover sheller. The
shaft of the clover sheller is at the end situated at the outlet provided with bindes to
throw back the seed and chaff or ravings separated in shelling onto the opposite side
of the aforesaid caving ride which separates the seed from the chaff or cavings and
deposits the latter on the ground at the end of the machine under the barrel of the
sheller whilst the seed piss through the caving riddle and lower dressing apparatus
to the elevators and from thence is delivered into sacks at the opposite end of the
machine as usual with ordinary motion.
And in order that my invention may be well understood I will describe with
reference to the accompanying drawings the manner in which the same may be carried
into effect as applied to one of Marshall Sons & Co.'s standard thrashing machines.

page_text: Fig. 1 is a vertical section and Fig. 2 a sectional plan of the machine with my
invention applied thereto.
The clover or trefoil i fed into the ordinary thrashing drum A in the same manner
as in thrashing ordinary grain and by the said drum the heads or husks containing
the seed are separated from the straw, the straw passing along the ordinary shakers B
of the thrasher in the usual way, whilst the husks containing the seed are thrown on
to the upper shoe (and passed along the riddle D to one side of the spout side E and
by the tapered spout F to the sheller, which consists of a cylindrical case G lined with
woven steel wire or other perforated or reticulated material and is fixed across the
front end of the machine.
Ι
Inside this case revolves at a high velocity, a drum 9 of similar construction to the
ordinary thrashing drum which effectually rubs the seed out of the busks and carries
the seed and husks to the opposite end of the cylindrical case G where a fan his
fixed which throws the sond and husks through the spout 1 on to the portion of the
perforated riddle D (preferably of zinc) to the other side of the spout side which
riddle separates the seed from the husks which are carried (in the form of cavings)
off the tail end of upper shoe, falling on to the ground under the cylindrical case G
whilst the shelled seed is passed along to the ordinary dressing part of the machine,
and dealt with in the usual way.
Anv husks or seeds which may have passed with the straw on to the shakers B are
separated from the straw and falling on to the top run j of the upper shoe pass there-
from on to the perforated wood riddle K which separates the seed and husks the
cavings passing over the floor K³ (guarded at its edge by the caving spout side k)
over the tail end of upper shoe and delivering the seeds and husks which pass through
the riddle K and over the riddle Dinto the spout F by which they are carried onto
the sheller as before described.
In order to catch the seeds which may pass during the operation of shelling, through
the inner perforated casing of the cylindrical case G an outer casing G surrounds
and encases the said case G leaving sufficient space between the two casings to allow
a free passage for seeds which are conveyed to the elevating fan by means of a worm
conveyor revolving within the lower part of the easing G.
To ensure regularity of feeding the sheller, a feed roller L is mounted and rotated
over the mouth or entry to the shelling drum from the spout 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 :-
1. In combination with a thrashing machine a clover or trefoil shelling drum
substantially as and for the purpose hereinbefore described.
2. The combination with thrashing machines of the arrangement of parts so as to
constitute a machine for thrashing or stripping and shelling clover or trefoil sub-
stantially as hereinbefore described and shewn in the accompanying drawings.
Dated this 17th day of December 1890.
J. H. JOHNSON & Co.,
Agents.