IMPROVEMENTS IN THRASHING MACHINES
Year: 1879

page_text: PROVISIONAL SPECIFICATION left by William Edward Gedge at the Office
of the Commissioners of Patents on the 16th December 1879. A communi-
cation from abroad by Jules Alexandre Cheyère-Bauchart, of La Main Ferme,
Commune de Rozoy-sur-Seine (Aisne), France, Agriculturist.
"
WILLIAM EDWARD GEDGE, of No. 11, Wellington Street, Strand, London, in the
County of Middlesex, Patent Agent. IMPROVEMENTS IN THRASHING MACHINES."
A communication from abroad by Jules Alexandre Cheyère-Bauchart, of La Main
Ferme, Commune de Rozoy-sur-Seine (Aisne), Franco, Agriculturist.
The thrashing machines most generally used in agriculture consist of a cylinder
turning somewhat rapidly and rubbing against a grooved surface concentric to this
cylinder the sheaves previously introduced in ten or twelve parts by two cylinders
placed in front.
This system has three main defects,-
1°. The small amount of work done by these machines.
2°. The sheaves introduced into these apparatuses in several parts must neces-
sarily be rebound after the thrashing, which gives a double labor.
3°. Their great cost, the large space required for setting them up and the facility
with which they get out of order.
The thrashing machine, the subject of this Invention, differs from the machines
now used in that it produces its thrashing or beating directly upon the sheaf, and
not by rubbing, as would be inferred from the grooved surfaces or the toothed
plates placed near the cylinder with which these machines are provided.
The thrashing is mainly due to the great speed with which the cylinder
revolves.
It possesses the following advantages over ordinary machines:-
1°. It effects, power and time being equal, three times as much work.
2º. It does not require the passage through the apparatus of the sheaves, which,
freed from their grain, do not require rebinding.
3°. Its low price and the little space required for setting up.
The apparatus is composed of the following pieces (as shown in side elevation at
Fig. 1, and in Fig. 2 in front elevation, and section at A, B, C, Fig. 1, of the
accompanying Sheet of Drawing):
A, pulley set in motion by a horse-mill or other available power; B, pulley fixed
and turning on the same axle as C, and driven by the band D upon A; C, driving
wheel actuating E, this latter (E) driving the beater f. This same beater ƒ has at

page_text: its end a toothed wheel a, which sets in motion a second toothed wheel a¹, driving
the beater f¹, both beaters being provided with teeth g. h, feeding table or apron;
I, slanting bottom leading the grain to the siever; J, support of E; V, opening;
K, box or chest; S, sheet iron side pieces keeping the grain on the siever when
heaping too much; O, sheet iron at the end of the table h pierced with holes to 5
give passage to the few grains thrown back by the cylinder to this spot; a, a¹,
toothed wheels fixed at the end of each thrashing cylinder f.ft.
WORKING OF APPARATUS.
The thrashing of the sheaves by this machine is operated as follows:-
The two beaters f, f¹, are placed vertically the one above the other at a distance 1
apart which may be varied according to the greater or lesser dimensions which it
is desired to give to the teeth of the beaters.
The cylinders ff, revolving rapidly by the aid of the aforesaid gearing, it is only
necessary to bring the sheaf to be thrashed near the cylinders f, f¹, to the point
(three seconds sufficing for the thrashing of a sheaf).
The grain then extracted from the sheaves falls in the thrashing machine upon
the inclined plane I, which is lined with sheet iron to facilitate the sliding of the
grain on to the sieve r and extension y, from thence into the winnower (as shown
in the side elevation), and finally into the box K by the opening V. The slanted
sieve in the second length of is for the running off of the particles of straw, as 2
well as for the entire sheaf in the case that it is allowed to pass through the
thrashing machine.