CERTAIN IMPROVEMENTS IN MACHINERY FOR CUTTING, CROPPING, AND DRESSING WOOLLEN AND COTTON CLOTHS
Year: 1833

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RILEY
CARR, of Sheffield, in the County of York, Manufacturer, sends greeting.
WHEREAS His present most Excellent Majesty King William the Fourth,
by His Letters Patent under the Great Seal of Great Britain, bearing date
at Westminster, the Eleventh day of December, One thousand eight hundred
and thirty-three, in the fourth year of His reign, did, for Himself, His heirs
and successors, give and grant unto me, the said Riley Carr, His especial
licence that I, the said Riley Carr, my exors, adñors, and assigns, or such
others as I, the said Riley Carr, my exors, admors, or assigns, should at any
time agree with, and no others, from time to time and at all times during
the term of years therein expressed, should and lawfully might make, use,
exercise, and vend, within England, Wales, and the Town of Berwick;
upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN MACHINERY FOR
CUTTING, CROPPING, AND DRESSING WOOLLEN AND COTTON CLOTHS;" in which
said Letters Patent is contained a proviso obliging me, the said Riley Carr,
by an instrument in writing under my hand and seal, particularly to describe
and ascertain the nature of my said Invention, and in what manner
is to be performed, and to cause the same to be inrolled in His said
Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part recited Letters Patent, as in
and by the same, reference being thereunto had, will more fully and at large
annear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Riley Carr, do hereby declare the nature of my said Invention, and the
manner in which the same is to be performed, are fully described and ascer-
tained in and by the following description thereof, reference being had to the
Drawing hereunto annexed, and to the figures and letters marked thereon,
that is to say-
My Invention relates to an improved construction of the spiral blades used
in cutting, cropping, and dressing the pile of woollen and cotton cloths, and my
improvements consist in turning up the two edges of a plate of metal (of a
suitable length and breadth for the blades), and thus forming two cutting
blades, standing at an angle to the base or part of the metal plate which is
affixed on to the roller or cylinder of the shearing machine, by which means
the spiral blades will be held more firmly, truly, and securely on the cylinder
or roller than can be obtained with single spiral blades, as will be fully
roller or cylinder of a shearing machine. Figure 2 is a transverse section
thereof, by which it will be seen that the whole is formed from one plate of
metal.
In each of these Figures the same letters refer to the same parts. And I
would remark, that I have not thought it necessary to shew a shearing
machine, that machine being well understood. My Invention relating only to
the spiral blades it will only be necessary to describe the manner of construct-
ing them, the manner of working or using them being similar to single spiral
blades.
a, a, represent the part of the plate which winds round the cylinder or roller,
and b, b, are the two edges, which are turned up and form the double spiral
blades. It will be evident that by constructing two blades in the manner here
shown, from one plate of metal, the space between the blades acts as a stay,
and materially tends to strengthen the bearings of the two blades on the roller
or cylinder of the shearing machine. In constructing these double spiral
blades I usually take a plate of rolled steel, or of rolled iron and steel welded
together, the iron being in the centre of the thickness usually employed for
spiral blades, and by forging or otherwise turning up the two edges to form the
two blades b, b. I then wind the plate so turned up at its edges on to a true
roller or cylinder of ten or twelve inches diameter, and after this they are
removed from the rollers and drawn out in a winding or spiral direction, either

page_text: of a right or left twist, in like manner to that pursued in forming single blades,
by which means the desired spiral figure is given to the double blades. They
are then hardened by heating them red-hot in a furnace, and immersed in oil
or water, and are afterwards ground and set in like manner to single spiral
blades; and those double blades are made fast to the cylinder or roller of the
shearing machine by screws and nuts c attached to the ends, as is well
understood.
Having now described the nature of my Invention, and the manner of
performing the same, I would have it understood that I do not confine myself
to using a plate composed wholly of rolled steel, though I prefer that metal,
for it will be evident that iron or other metal may have steel edges welded or
brazed thereto, and thus produce double blades from one plate.
And I do hereby declare that my improvements consist in forming or con-
structing two blades by turning up the edges of a plate of metal, as above
described, when used in machinery for cutting, cropping, and dressing woollen
and cotton cloths.
In witness whereof, I, the said Riley Carr, have hereunto set my hand
and seal, the Fourth day of June, in the year of our Lord One
thousand eight hundred and thirty-four.
Signed and sealed in the presence of us,
HEN. BROOMHEAD.
Jos. JN EYRE.
AND BE IT REMEMBERED, that on the Fourth day of June, in the
year of our Lord 1834, the aforesaid Riley Carr came before our said Lord.
the King in His Chancery, and acknowledged the Specification aforesaid, and
all and every thing therein contained and specified, in form above written.
And also the Specification aforesaid was stamped according to the tenor of the
Statute made for that nurnose
Inrolled the Eleventh day of June, in the year of our Lord One
thousand eight hundred and thirty-four.