IMPROVEMENTS IN MACHINERY FOR BOLLING AND CLOD CRUSHING
Year: 1866

page_text: LETTERS PATENT to John Spencer, of 14, Corn Market, Doncaster, in
the County of York, for the Invention of "IMPROVEMENTS IN MACHINERY
FOR BOLLING AND CLOD CRUSHING."
Sealed the 24th July 1866, and dated the 27th January 1866.
PROVISIONAL SPECIFICATION left by the said John Spencer at the
Office of the Commissioners of Patents, with his Petition, on the 27th
January 1866.
I, JOHN SPENCER, of 14, Corn Market, Doncaster, in the County of York,
do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY FOR ROLLING AND CLOD CRUSHING," to be as follows:-
This Invention relates to agricultural machinery, and consists of improve-
ments in the form and construction of rollers for crushing clods and preparing I
the surface of the land for seed drilling and the like. The improvements are
effected partly in the form of the periphery of the rollers, and partly in the mode.
of constructing the crusher therewith. The cylinder or roller which forms the
crusher is divided into a number of sections or wheels mounted upon a ceutral

page_text: axis, and turning thereon. These,wheels are free to rotate independent of each
other; their peripheries are formed with spiral or angular ridge and valley
surfaces; the inclination of the said ridges and valleys in these wheels being
from left to right and from right to left alternately, thereby producing a zig-zag
ridge and valley surface of the land. For crushing clods, where the transverse
section of the land is ridge and valley, as in the case of earthed-up potatoes,
where it is desirable to preserve such surface I make the wheels of unequal
diameters, dividing the series by small spiked wheels or rollers.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Spencer in the Great Seal Patent Office on the 27th
July 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
SPENCER, of 14, Corn Market, Doncaster, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the
, in the year of our Lord
day of
One thousand eight hundred and sixty-, in the twenty-
year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said John Spencer, Her special licence that I, the said John Spencer,
my executors, administrators, and assigns, or such others as I, the said
John Spencer, 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
MACHINERY FOR ROLLING AND CLOD CRUSHING," upon the condition (amongst
others) that I, the said John Spencer, my executors or administrators, by
an instrument in writing under 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
nionths. next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Spencer, 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:-

page_text: I claim the alternate right and left hand form and dispositions of the
sectional rollers and wheels as herein' described.
In witness. whereof, I, the said John Spencer, have hereunto set my
hand and seal, this Twenty-fifth day of July, in the year of our Lord'
One thousand eight hundred and sixty-six:
JOHN SPENCER. (Ls.)