IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED IN GINNING COTTON
Year: 1873

page_text: LETTERS PATENT to John Henry Johnson, of 17, Lincoln's Inn
Fields, in the County of Middlesex, Gentleman, for the Invention
of "IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED IN
GINNING COTTON."-A communication from abroad by George Purvis,
of the City of Bombay.
PROVISIONAL SPECIFICATION left by the said John Henry Johnson
at the Office of the Commissioners of Patents, with his Petition, on
the 27th February 1873.
I, JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County
5 of Middlesex, Gentleman, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED
IN GINNING COTTON," a communication to mo from abroad by George
Purvis, of the City of Bombay, to be as follows:-
This Invention relates to a peculiar direct acting revolving beater for
cotton gins, which beater consists of an arrangement of kneo-shaped or
plain-ended knives or beaters. These knives or beaters are fitted or
•
"

page_text: rivetted on edgeways at right angles to, and squaro across pieces or
strips of iron of about 40 inches long, more or less, as the case may be,
according to circumstances. Those strips containing knives or beaters
are afterwards fixed to a square or hexagon bodied spindle made round
at the ends, the knives projecting at right angles in different rows, and
in straight or direct lines.
The fixing of the knives or beaters on the sides of the spindle is so
arranged that the several knives or beaters are caused to follow cach
other alternately, but are straight and at right angles to the spindle,
resembling a kind of open or close end grating.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Henry Johnson in the Great Seal Patent
Office on the 21st August 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County of 1
Middlesex, Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by IIer Lotters
Patent, bearing date the Twenty-seventh day of February, in the year
of our Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John Henry Johnson, Her special
license that I, the said John Henry Johnson, my executors, adminis-
trators, and assigns, or such others as I, the said John Henry Johnson,
my executors, administrators, or 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
"IMPROVEMENTS IN MACHINERY OR APPARATUS TO BE EMPLOYED IN GINNING
COTTON," a communication to me from abroad by George Purvis, of the
City of Bombay, upon the condition (amongst others) that I, the said
John Henry Johnson, my executors or administrators, by an instru-
ment in writing under my hand and scal, should particularly describe
and ascertain the nature of the said Invention, and in what manner.

page_text: 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.
NOW KNOW YE, that I, the said John Henry Johnson, do hereby
declare the nature of the said Invention, and in what manner the
samo is to be performed, to be particularly described and ascertained
in and by the following statement, reference being had to the accom-
panying Drawings, and to the letters and figures marked thereon, that is
to say :-
The said Invention relates to a peculiar "direct-acting revolving
beater" for cotton gins, which beater consists of an arrangement of
knee-shaped or plain ended knives or beaters. These knives or beaters
are fitted or rivetted on edgeways at right angles to and square across
pieces or strips of iron of about forty inches long, more or less, as the
case may be, according to circumstances. These strips containing
knives or beaters are afterwards fixed to a square or hexagon bodied
spindle mado round at the ends, the knives projecting at right angles in
different rows, and in straight or direct lines.
The fixing of the knives or beaters on the sides of the spindle is so
arranged that the several knives or beaters are caused to follow cach
other alternately, but are straight and at right angles to the spindle,
resembling a kind of open or close end grating.
All these parts can and will be made of wrought iron, cast iron, or
any other cheap metal suitable for the purpose.
Figure 1 of the accompanying Drawings represents a side elevation of
a portion of my peculiar "direct-acting revolving beater"; aud
Figure 2 is a transverse section of the same.
a, a, aro tho knives or teeth; b, b, the knee ends of tho said knives or
teeth, which knco ends may be dispensed with if plain ends be preferred;
c, c, aro the metal strips to which the teeth are rivetted so as to bo
squaro across them, as shown; d is the square or flat-sided spindle, to
the sides of which the said strips o are rivetted or otherwiso secured; e is
one of the round or cylindrical ends or journals of the spindle for
carrying the driving drum or pulley.
Having now described and particularly ascertained the nature of the
said Invention, and the manner in which the same is or may be used or

page_text: +
carried into effect, I would observe in conclusion that what I consider to
be novel and original, and therefore.claim as the Invention secured to
me by the herein-before in part recited Letters Patent is, the peculiar
construction of direct-acting revolving beater for cotton gins, as herein-
before described and illustrated by the Drawings annexed.
In witness whereof, I, the said John Henry Johnson, have to
this my Specification set my hand and seal, this Eighteenth
day of August One thousand eight hundred and seventy-three.