IMPROVEMENTS IN THE MANUFACTURE AND ARRANGEMENT OF CHAIN HARROWS
Year: 1859

page_text: LETTERS PATENT to John May Munro, of the City and County of Bristol,
Agricultural Machine and Implement Manufacturer, for the Invention
of "IMPROVEMENTS IN THE MANUFACTURE AND ARRANGEMENT OF CHAIN
HARROWS."
Sealed the 8th November 1859, and dated the 14th May 1859.
PROVISIONAL SPECIFICATION left by the said John May Munro at the
Office of the Commissioners of Patents, with his Petition, on the
14th May 1859.
I, JOHN MAY MUNBO, of the City and County of Bristol, Agricultural
Machine and Implement Manufacturer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN THE MANUFACTURE AND ARRANGEMENTS
OP CHAIN HARROWS," to be as follows, and consists in the use of short bars to
keep the harrows extended, such bars being used with or without spikes,
hooks, or wheels; also, in the use of spikes or wheels to be attached to any
part of the harrow, or arranged so that they will follow or lead either the link
track or between the links; also, in. the use of diagonal bars, short or long, for
the purpose named in the first clause, to be applied to the harrow with or
without spikes, hooks, or rollers attached to them; also, in the use of iron
rolled or worked thick and thin, so as to secure more substance of iron where
the harrow is subject to more wear or strain; also, in the use of rollers or
crushers, connected with the harrow in any manner, and worked by the same
power or team of horses.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John May Munro in the Great Seal Patent Office on the
12th November 1859.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MAY MUNRO, of the City and County of Bristol, Agricultural Machine and
Implement Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing dato the Fourteenth day of May, in the year of our Lord
One thousand eight hundred and fifty-nine, in the twenty-second year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said John May Munro, Her special license that I, the said John May Munro,
my executors, administrators, and assigns, or such others as I, the said John
May Munro, 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 "IMPROVEMENTS IN THE
MANUFACTURE AND ARRANGEMENT OF CHAIN HARROWS," upon the condition,
amongst others, that I, the said John May Munro, my executors or adminis-
trators, 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.
NOW KNOW YE, that I, the said John May Munro, 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, reference being had to the annexed Drawings.
This Invention consists in the use of short bars for keeping the harrow
extended, such bars being used with or without spikes, hooks, or rollers; also,
in the use of spikes or wheels attached to any part of the harrow, or so
arranged that they will follow or lead either the link track or between the
links; also, in the use of diagonal bars in short or long lengths, for the
purpose set forth in the above first clause, to be applied to harrows, either
with or without spikes, hooks, or rollers attached to them; also, in the use of
any size metal worked or cast thick and thin, so as to secure greater strength
where the harrow is subject to most wear or strain; also, in tho use of rollers
or crushers in connection with harrows.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 shows the arrangement of a chain harrow in the manner required
to be patented. (a), common links of chain harrow; (b), short bars for
keeping the harrow extended, to which spikes or rollers may be attached;
(c), short bars to extend back links; .,, show lines, or track of links and
spikes, that would be produced by harrows of this form.
Figure 2 shows the arrangement of harrows with diagonal bars, a roller or
crusher attached. (a), common links of harrow; (b), diagonal bars for
keeping the harrow extended, to which may be attached spikes or rollers;
(c), connecting links; (d), rollers or crushers; (e), links to connect horse or
other power to.
Figure 3 shows an arrangement of links. (a), links shown horizontal;
(6), links shown vertical.
Figure 4 shows the form or arrangement of iron rolled, worked, or cast, so
as to secure a greater substance of iron where the harrow is subject to most
wear or strain.
Having now described the nature of my Invention, and how it may be
carried into effect, I wish it to be understood that I do not confine myself to
the express details herein given so long as the principle applied is maintained;
but what I claim, and desire to secure by Letters Patent, is, the construction
of harrows substantially as herein set forth.
In witness whereof, I, the said John May Munro, have hereunto set
my hand and seal, this Eleventh day of November, in the year of
our Lord One thousand eight hundred and fifty-nine.
J. M MUNRO. (L.B.)
IT