Improvements in Thrashing Machines.
Year: 1890

page_text: Date of Application, 12th May, 1890
Complete Specification Left, 11th Feb., 1891-Accepted, 9th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Thrashing Machines.
I, FREDERICK HOWARD LIVEXS Sheaf Iron Works, Lincoln, Engineer, do
hereby declare the nature of this invention to be as follows:-
This invention has for its object improvements in thrashing machines and
consists in a method for automatically returning to the thrashing drum matters
such as unthrashed head which require to be so treated.
On one side of the lower reciprocating shoe I arrange a spout in the usual
manner to deliver the unthrashed heads or whatever is too large to pass through
the seed riddles. This spout reciprocates with the shoe. Coming down into the
spout but not touching it I arrange another spout which passes upwards and com-
municates with the space inside the thrashing drum. The lower end of this spout
is left open. As the drum revolves it creates a vacuum sufficiently powerful to
cause a draught up the spout which carries up the unthrashed heads and other
matter which are thus automatically delivered into the drum to be thrashed over
again. By this means I avoid the labour of collecting these matters by hand as
is usually done and periodically returning them to the top of the machine.
Dated this 12th day of May 1890.
CARPMAEL & Co.,
Agents.
COMPLETE SPECIFICATION.
Improvements in Thrashing Machines.
I, FREDERICK HOWARD LIVENS Sheaf Iron Works, Lincoln, Engineer, 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 :―
This invention has for its object improvements in thrashing machines and
consists in a method for automatically returning to the thrashing drum matters
such as unthrashed head which require to be so treated.
On one side of the lower reciprocating shoe I arrange a spout in the usual
manner to deliver the unthrashed heads or whatever is too large to pass through
the seed riddles. This spout reciprocates with the shoe. Coming down into the
spout but not touching it I arrange another spout which passes upwards and com-
municates with the space inside the thrashing drum. The lower end of this spout
is left open.
As the drum revolves it creates a vacuum sufficiently powerful to
cause a draught up the spout which carries up the unthrashed heads and other
matter which are thus automatically delivered into the drum to be thrashed-over
again. By this means I avoid the labour of collecting these matters by hand as
is usually done and periodically returning them to the top of the machine.
Figure 1 is a side elevation of part of a thrashing machine fitted as above
described with automatic apparatus for returning to the thrashing drum all
unthrashed heads.
Figure 2 is a section on the line ABCD Figure 1, some of the parts only being
shewn.
Figure 3 is an end view and Figure 4 a transverse section of the thrashing
drum.
A is the thrashing drum, B is the top shoe and C the bottom shoe carrying
riddles in the ordinary manner. D is the spout by which the corn passing from
the riddles is conveyed to the elevator E and F the spout known as the cape spout
Price 1

page_text: by which hitherto the unthrashed heads or whatever is too large to pass through
the riddles have been delivered into a receptacle placed below it. G is the tube or
spout which passes upwards from just above the cape spout F and opens into the
space inside the thrashing drum at one end of it. H H are fan blades fixed to the
radial arms by which the drum is at this end carried from its axle-these blades
increase the upward draught through the tube G. The matters carried up through
the tube G are in this way projected into the interior of the drum and are
thrown out from thence through the spaces between the bars or beaters at its
circumference and so again get thrashed.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1. The construction of thrashing machines with a tube led upwards from just
above what is known as the cape spout to the interior of the thrashing drum to
deliver back to this drum all matters that require to be rethrashed.
2. The construction of thrashing machines substantially in the manner herein-
before described and illustrated in the drawing annexed for automatically conveying
back to the thrashing drum all unthrashed heads or whatever is too large to pass
through the seed riddles.
Dated this Seventh day of February 1891.
FREDERICK HOWARD LIVENS.