Improvements in or connected with Thrashing Machines.
Year: 1892

page_text: Date of Application, 21st Nov., 1892
Complete Specification Left, 21st Sept., 1823-Accepted, 18th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in or connected with Thrashing Machines.
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 my invention to be as follows:-
Hitherto cavings and short straws have only been passed through the lower
bruising drum but I have according to my invention provided means whereby
cavings, chaff and short straw are passed through both or all the cutting and
bruising drums or rollers by which means I not only ensure a very uniform sample
but save labour as all the output from the machine except the grain is then
delivered at one place and has the advantage of having been passed over the extra
I can effect
sifting apparatus enabling all the grain to be separated therefrom.
the object of my invention by introducing an elevator on the side of the thrashing
machine the said elevator being preferably driven at a slow speed and fitted with
large pulleys and double belts with cleads attached thereto to elevate the cavings chaff
and short straw from the hopper of the dressing shoe and deliver them to the upper
part of the machine so that they pass through the cutting or upper bruising drums
or rollers and thence through the lower ones.
Dated this 21st day of November 1892.
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with Thrashing Machines.
1, JAMES MARSHALL of the Firm of Marshall Sons & Company 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:-
Hitherto cavings and short straw have only been passed through the lower
bruising drum but I have according to my invention provided means whereby
cavings chaff and short straw, are passed through both, or all, the cutting and
bruising drums, or rollers, by which means I not only ensure a very uniform sample
but I save labour as all the output from the machine except the grain, is then
delivered at one place and has the advantage of having been passed over the extra
I can effect the
sifting apparatus enabling all the grain to be separated therefrom.
object of my invention by introducing an elevator on the side of the thrashing
machine the said elevator being preferably driven at a slow speed and fitted with
large pulleys and a belt or belts with cleads attached thereto to elevate the
cavings, chaff, and short straw, from the hopper of the dressing shoe and deliver
them to the upper part of the machine so that they pass through the cutting or
upper bruising druins or rollers and thence through the lower ones.
Figures 1 and 2 of the accompanying drawing represent an end elevation and side
elevation respectively of so much of a thrashing machine as is necessary to
illustrate the application of my invention thereto.
At the side of the machine is a casing A containing pulleys a a' mounted in
bearings one of them being driven by belting from a pulley on the end of the
shaker crank or any other suitable part of the machine in the direction shewn by
the arrows.
Over these pulleys a a' passes or pass a belt or belts B to which

page_text: cleads bare fixed. The hopper of the dressing shoe inclines as shewn in Figure 1
and by the shoot and opening C leads into the lower part of the elevator. The
cavings, chaff, and short straw, are taken up by the cleads b and are delivered at
the point D at the upper part of the machine to the upper cutting roller and thence
pass through the lower bruising rollers.
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. The combination with thrashing machines of means whereby cavings, chaff,
and short straw, are passed through both, or all, the cutting and bruising drums, or
rollers, substantially as and for the purposes herein before described.
2. The combination with thrashing machines of an elevator arranged to receive
and elevate the cavings, chaff, and short straw, from the hopper of the dressing
shoes and deliver them so that they pass through both or all of the cutting and
bruising drums, or rollers, substantially as hereinbefore described and illustrated by
the accompanying drawings.
Dated this 21st day of Santambar 1902
J. H. JOHNSON & Co,
Agents.