Improvements in Thrashing Machines
Year: 1897

page_text: Date of Application, 20th Oct., 1897-Accepted, 18th Dec., 1897
Arom abroad by JULIUS DORSUM of Mesna Brug Lillehammer, in
the Kingdom of Norway Mechanical Engineer.]
"Improvements in Thrashing Machines.”
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, 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 thrashing machines and consists in certain new arrange-
ments whereby the straw and grain is in a more complete manner separated from
each other after having been loosened by the thrashing drum and before they have
reached the strawshakers:
The object of my invention is to simplify the construction of thrashing
machines, to limit the size of the machine and diminish the power necessary for
driving the same. To this end my invention consists in arrangements hereinafter
specified.
The accompanying drawing shows a longitudinal vertical section through the
upper part of a thrashing machine in which A indicates the strawshakers, and
BCD the mechanism for imparting rocking motion to the same.
As my inven-
tion does not relate to these parts, which are of well known construction, the same
need no further explanation, being only shown to make the description of the parts
of invention more clear.
F is the feed-board, at the end of which is arranged the thrashing drum G.
This drum may be provided with beaters or pegs or be of any other suitable con-
struction. It is surrounded by a casing H in such a way that the thrashing drum
will throw the straw and the loose grains backwards in a direction essentially hori-
zontal. Behind the thrashing drum there is placed a curved deflector I the upper
part of which is substantially horizontal and the back end of which is curved down-
wards so as to be adapted to catch the thrown grain and convey it to the back end
of the straw shakers A, from which it falls through a funnel into a receiver.
Owing to its low specific weight the straw and other light particles will fall
down on the straw shakers, and the grain loosened by aid of the latter as usual falls
through the same and is conducted to the grain receivers, the thrashed straw pass-
ing at the same time-upwards across the straw shakers and out of the machine.
In this way there is arranged a very effective assorting of grain and straw
already before the straw reaches the straw shakers, and for this reason the length
of the said straw shakers may be reduced to about half the length necessary in
machines where the thrashed material is led straight down to the straw shakers.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
1. In a thrashing machine the combination with the straw shakors and the

page_text: thrashing drum of a curved deflecting plate placed behind and above the straw-
shakers.
2. In a thrashing machine the combination with the strawshakers and the
thrashing drum of a curved plate encircling part of the thrashing drum and form-
ing a mouth for the thrashing materials through which the same is thrown out in
substantially horizontal direction.
3. In a thrashing machine a curved deflecting plate placed behind and above
the strawshakers, with its lower substantially vertical portion in near proximity.
to the rear end of the straw-shakers, and its upper substantially horizontal part in
near proximity to and above the mouth of the thrashing drum.
4. A thrashing machine having placed between the rear end of the strawshakers
and the mouth of the thrashing drum a curved deflecting plate substantially as
described.
5. A thrashing machine substantially as hereinbefore described.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.