AN IMPROVED MODE OF CONSTRUCTING THE BREASTING TO THE REVOLVING DRUM OR BEATERS OF THRESHING MACHINES
Year: 1853

page_text: PROVISIONAL SPECIFICATION left by Phillip Davis at the Office
of the Commissioners of Patents, with his Petition, on the
16th April 1853.
(Void by reason of notice to proceed not having been given within the
time prescribed by the Act.)
I, PHILLIP DAVIS, of No. 263, Whitechapel Road, in the County
of Middlesex, do hereby declare the nature of the said Invention for
AN IMPROVED MODE OF CONSTRUCTING THE BREASTING TO THE REVOLVING
DRUM OR BEATERS OF THRESHING MACHINES" to be as follows:-
I take flat bar iron of any proper width and thickness, and of a
length corresponding with the width of the drum or beaters of the
machine to which it is to be fitted, and on both ends of the bars, and
on that edge of them which is farthest from the drum or beaters; when
fixed, I form an axle or gudgeon, which is supported by the outer
casing of the drum or otherwise, and on which the bar then can revolve
until it comes into contact with the bar next adjoining, whether above
or below it, and over which it laps, so as in that case to form a close
covering to the drum, and prevent the passage of grain, except until it
has passed so far round the beaters as to be clear of all the bars. And
the method by which I cause the said bars to revolve, as above men-

page_text: tioned, is ordinarily by means of two bands of thin plate iron, or other
proper material, one, of which can, by turning a screw, be made to
turn the bars upwards, and the other by a similar process can turn them
downwards, the whole of which mode of construction, and likewise of
causing the bars to revolve, is more clearly shown by the accompanying
section. The advantages I obtain by this Invention are-1st, that by
turning the edges of the-bars so as to oppose-the passage of the ears or
pods from which the grain is required to be separated, I obtain a greater
amount of surface directly opposed to said passage of the ears or pods
than is usually obtainable: 2nd, by turning the edges of the bars in
the contrary direction I can diminish the opposing surface, and thus
save labour when the grain is ripe. 3rd, by causing the bars to remain
stationary in such a position that they radiate to a common centre, or
nearly so, I can form an open breasting, which is more suitable to the
larger grain, as beans, peas, &c. All these advantages are obtainable
without altering the general structure of the threshing machines in
usual request; besides which, I can diminish or increase the space
between the breasting and the beaters without bodily shifting the one
or the other, as will be more clearly shown by the accompanying section.
I also claim the Invention of a modification of the above mode of con-
structing the breasting by using angle iron instead of flat bar iron, by
means of which modification I obtain all the above advantages, except
that I cannot diminish the friction, as above stated in.my account of
my second advantage. which I obtain from the flat bar iron.
.

page_text: LONDON: Printed by GEORGE EDWARD EYRE and WILLIAM SPOTTISWOODE.
Brinters to the Queer's most Excellent. Majesty. 1853.