AN IMPROVEMENT IN PORTABLE CHAFF-CUTTING MACHINES
Year: 1869

page_text: LETTERS PATENT to Robert Maynard, of Whittlesford, in the County
of Cambridge, for the Invention of "AN IMPROVEMENT IN PORTABLE
CHAFF-CUTTING MACHINES."
Sealed the 7th January 1870, and dated the 25th August 1869.
PROVISIONAL SPECIFICATION left by the said Robert Maynard at the
Office of the Commissioners of Patents, with his Petition, on the
25th August 1869.
I, ROBERT MAYNARD, of Whittlesford, in the County of Cambridge,
do hereby declare the nature of the said Invention for "AN IMPROVEMENT
IN PORTABLE CHAFF-CUTTING MACHINES," to be as follows:-
This Invention has for its object an improvement upon certain
machinery for which Letters Patent were granted to me on the Third
day of March, One thousand eight hundred and fifty-six, No. 538, and
on the Twenty-fifth day of February One thousand eight hundred and
sixty-three, No. 518. By the first of the said Letters Patent I use in
connexion with portable chaff engines a riddle for separating the chaff
from the cavings or short straws, and by the second, apparatus for

page_text: elevating the chaff sufficiently high for it to be collected into a bag or
other vessel.
The present Invention consists in combining in the machines described
in the above-recited Patents as "portable chaff engines" and " portable
chaff-cutting machines," a sieve or riddle for separating the dust from
the chaff, so that the necessary parts for effecting the four processes
of cutting straw or other agricultural produce into chaff, sifting out
the cavings, sifting out the dust, and elevating the chaff, may be com-
bined in one portable chaff engine.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Maynard in the Great Seal Patent Office
on the 2nd February 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ROBERT
MAYNARD, of Whittlesford, in the County of Cambridge, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-fifth day of August, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Robert Maynard, Her special licence
that I, the said Robert Maynard, my executors, administrators, and
assigns, or such others as I, the said Robert Maynard, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "AN IMPROVEMENT
IN PORTABLE CHAFF-CUTTING MACHINES," upon the condition (amongst others)
that I, the said Robert Maynard, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of the
said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.

page_text: NOW KNOW YE, that I, the said Robert Maynard, do hereby
declare the nature of my said 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 an improvement upon certain
machinery for which Letters Patent were granted to me on the Third
day of March One thousand eight hundred and fifty-six, No. 538, and
on the Twenty-fifth day of February One thousand eight hundred and
sixty-three, No. 518. By the first of the said Letters Patent I use in
connexion with portable chaff engines a riddle for separating the chaff
from the cavings or short straws, and by the second, apparatus for
elevating the chaff sufficiently high for it to be collected into a bag or
other vessel.
The present Invention consists in combining in the machines described
in the above recited Patents as "portable chaff engines," and ".
'portable
chaff-cutting machines," a sieve or riddle for separating the dust from
the chaff, so that the necessary parts for effecting the four processes
of cutting straw or other agricultural produce into chaff, sifting out the
cavings, sifting out the dust, and elevating the chaff, may be combined
in one portable chaff engine.
DESCRIPTION OF THE ACCOMPANYING DRAWINGS.
Fig. 1 represents a side elevation, and Fig. 2 an end elevation. The
same letters refer to each Figure.
The straw or other substance to be cut into chaff is laid in the box
or trough T, whence it passes between the rollers r, r, and through the
mouth M, to the knives K, K, K, K, K, K, on the wheel W, by which
it is cut, the chaff falling into the riddle R which separatos it from the
imperfectly cut straws, which run over the end of the riddle at E,
the perfectly cut chaff falling through the interstices, is received by the
dust riddle D, which is finely perforated, so as to suffer the dust to fall
through the perforations to the floor. The chaff is delivered from the
dust riddle through the opening Q, falling into the elevator at F, whence
it is carried by the sweepers S, and delivered at the mouth m, and may
be received into bags or any suitable vessel.
Note, that although I have described a certain arrangement and form
of parts suitable for giving effect to this Invention, yet I do not confine
myself to such arrangement nor form, as they may probably be ad-

page_text: vantageously varied, and that I do not herein lay claim to the use of
any such parts separately, as one or more of them may have before been
used, but what I do claim is the combination of them, arranged either
as I have described, or in any other way, so as to enable the processes
of cutting chaff, sifting out the cavings, sifting out the dust and
elevating the chaff, to be done at one and the same time by a portable
chaff engine.
In witness whereof, I, the said Robert Maynard, have hereunto
set my hand and seal, this Second day of February, in the
year of our Lord One thousand eight hundred and seventy.
ROBERT MAYNARD. (L.S.)