IMPROVEMENT IN THRASHING MACHINES
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, PHILIP PIERCE, of Wexford, Ireland, Engineer, do hereby declare the nature
of my Invention for AN IMPROVEMENT IN THRASHING MACHINES, and in what
manner the same is to be performed, to be particularly described and nscertained
in and by the following statement:—
This Invention has for its object an improvement in thrashing machines,
whereby their construction, in order to carry out my Invention, is simplified.
The Invention consists essentially in the attachment to the shakers of blades or
brushes, mounted transversly on their under side. The shakers are of the
ordinary construction, and are arranged at a suitable angle, and at a corresponding
is a base advantageously of sheet metal, wood or other material, the upper surface
of which is at a convenient distance from the under side of one set of shakers;
and this distance, in the lowest position, will determine the depth of said brushes
or blades, which by the rotating and feed movement, as is now usual in thrashing
machines, will cause the small particles of straw_chaff or corn that have escaped
through the openings in the shakers on to the base, to be brushed downwards
towards the lower end of the base or sheeting, and finally ejected therefrom, either
on to the ground, or to the riddling device, on to which the corn from the thrashing
drum is also delivered.
In order that my Invention may be more readily understood, and carried into
effect, I will now proceed to describe the same with reference to the accompanying
Drawings; in which Fig. 1 is a side elevation, with my improvements attached,
in which the small particles of straw, chaff or corn are delivered on the ground,
and Fig. 2 is an elevation where the same is delivered on to the riddling device.
A, A are the inclined main bottom rails which carry the base or sheeting B
extending across the machine. C, C are the shakers connected to the simul-
taneously rotating cranks D, D having their bearings upon the rails A. A.
E, E are the blades or brushes mounted on the underside of the shakers C, C.
They may be of wood, felt, sheet metal or ordinary brushes, and of any convenient
number.
F is the beating drum, and G the concave of the usual construction.
In Fig. 2 I have shewn a more complete apparatus, where the chaff and corn
are delivered on to the reciprocating riddle H, and afterwards subjected to a blast
of air in the chamber I, from the fan J. In some cases where the corn is required

page_text: to be clevated to the sacks, it can be effected by an ordinary bucket elevator on
the underside of the machine, of which tho angular base allows. The straw in
Figs. 1 and 2 is delivered by the shakers at X as usual. In order to support the
machine at this end, I employ a pillar or bracket K, to which the fore carriage
can be attached when required for travelling, or can he removed therefrom at will,
when for stationary use. The base of the standard K is on a level with the back
part of the machine to which the travelling wheels are connected at L.
The angle of the shakers, as also that of the base, may be adjustable without
departing from my Invention.
Having thus described and ascertained the nature of my Invention, and in
what manner the same is advantageously performed, I would have it understood
that what I claim is,
First. In a thrashing machine, the employment and combination of inclined
rails A, A, and base or sheeting B with shakers C, C for delivering the
straw at X, said shakers being operated by cranks D, D, having their
bearings on the rails A, A; substantially as herein set forth with reference
to the accompanying Drawings.
Second. In a thrashing machine the bottom inclined or horizontal rails A, A
to which the base or sheeting B is attached, in combination with shakers
C, C worked by cranks D, D having their bearings upon the rails A, A,
and mounted at a corresponding angle, said shakers for delivering the straw
having brushes or plates E, E connected thereto, on their underside for the
simultaneous movement in the opposite direction of the chaff, corn or loose
particles of the straw that have escaped through the shakers to be directed
to the winnowing device or not; substantially as herein set forth with
reference to tho accompanying Drawings.
.
Third. In thrashing machines with inclined base and provided with the afore-
said improvements, the supporting of the straw-delivering end X by the
standard K, to which carrying whicels may be applied; substantially in the
manner and for the purposes herein set forth and illustrated with reference
to the accompanying Drawings.