A MACHINE ON A NEW CONSTRUCTION FOR SHEARING OF CLOTH AND OTHER ARTICLES IN A MORE EXPEDITIOUS MANNER THAN BY ANY OTHER MODE HITHERTO DISCOVERED
Year: 1793

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
GRISSOULD DORR, of Albany, in the State of New York, in America, Clothier,
send greeting.
WHEREAS His most Excellent Majesty King George the Third did, by
His Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Ninth day of April, in the thirty-third year of His reign,
givo and grant unto me, the said Samuel Grissould Dorr, His especial
licence that I, the said Samuel Grissould Dorr, during the term of years
therein mentioned, should and lawfully might use, exercise, and vend,
within England, Wales, and the Town of Berwick-upon-Tweed, my Invention
of "A MACHINE ON A NEW CONSTRUCTION FOR SHEARING OF CLOTH AND OTHER
ARTICLES IN A MORE EXPEDITIOUS MANNER THAN BY ANY OTHER MODE HITHERTO
DISCOVERED;" in which said Letters Patent there is contained a proviso
obliging me, the said Samuel Grissould Dorr, by an instrument in writing
under my hand and seal, to cause a particular description of the nature of
my said Invention, and in what manner the same is to be performed, to
be inrolled in His Majesty's High Court of Chancery within one calendar
month after the date of the said recited Letters Patent, as in and by the
same (relation being thereunto had) may more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Samuel Grissould Dorr, do hereby declare that my said Invention is described
in the Plan and description thereof hereunto annexed.
In witness whereof, I, the said Samuel Grissould Dorr, have hereunto
set my hand and seal, this Second day of May, in the year of our Lord 5
One thousand seven hundred and ninety-three.

page_text: Hacento annext, are the drawings, explanations, marks and references of a m
means.
view
on a
things invented by Samuel Griswould Deur Clothier of Albany in the State of New York in North America, that is to say.
Fig 1 is a front of a Machine for Shearing or Clipping Cloth and other things I is an Iron frame containing the
Shaft on which are there setts of Knives 3 are bell metal hubs. 4 are springs
operating parts of the Machine. 2. is a
regulating wheels with slits.
screv'd on the hubs 3. 5 au knives screw'd on the Spring 4. 6 are screws with nuts. I are
that admit the screws 6 to pass this' them by which the knives are brought into a Circle, and otherwise regulated.
be fixt
care that the knives of the outside setts correspond.
a Shaft taking
Thus any number of knives may
or three inches by which
with each other so that the knives of the middle sett may lock into them two
Stationary knife with a
the knap of the Cloth will not be left between the setts of knives. I is a
Shank at each end which being admitted into sockets that are scruv'd on the pame is kept fast, I is a supporter
with an obluse edge that brings the cloth up to the stationary knife, it has pivots and sliders at each
by
which it is raised or lowered at pleasure and otherwise regulated 70 are metal rollers that give motion
to the Cloth, See Sec 1st. II are projecting pieces with sliders that admit the pivots of the rollers 10. I is a
projecting piece from the Supporter I it passing thro' a slitted price that has screws at each side, regulates the
supporter. 12 is a round brush that raises the knap of the Cloth as it passes to the Stationary knife
projecting peices that
8. 13 is a roller that prevents the Cloth from bearing too hard on the brush 12. 14 are.
Wheel necessary
to quicken the motion of the Muchine
Cogg Wheel
hold the pivots of the roller 13
on the Roller 10.
plays
Cogg
end
16, is a
Cogg
18 is a Cogg
Viheel
Wheel
on the Shaft 2
on
15 is
a
-
17 is a
Wheel
that
then
every
view
into the bogg Wheel 16
"' the Brush 12. By proportioning these Wheels and the hollers that give motion to the
Cloth is regulated io let the Cogg Wheel 16 be three inches, the Coyg Wheel 17 be 18 Inches, and the rollers
10, be two inches in diametre there being twelve knifes
inch of Cloth that passes
on each hut,
thro' the Machine will have twelve Clips on it Fig 2 is a view of the end of the Machine for shear-
ing or clipping Cloth, with the marks explanations and references as before - Sec 1t is a side
of the Brush, the Stationary knife the Spring knives, the supporter and the rollers of the Machine for
shearing or clipping Cloth and other things, where the dotted line is the representation of the Cloth passing
as before. Note the Cloth at, a, must be
thro' the machine with the marks explanations, and references as
-made tense by a Muilly, or wound on a beam. – Fig 3 is a view of the end of a Machine for
shearing ov clipping Cloth, with the addition of three Stationary knives, three brushes, three supporters,
eight rollers to protect the Cloth from the Wheel of Spring kives, five additional Cogg Wheels, and three
an irregular ring. Now imagine three
viregular rings to hold these additions, the rest as before, B. being
of these vingular rings souw'd on the three upright posts in
screw'd on the three upright posts in Fig 1st having the Shaft 2 for their
imagine a stationary knife at the four points, n. this being done it is easy to
see that if the Wheel of Spring knives be put in motion it will produce an opecution at the four
fresh for every
points, n, like shears
To bring the Cloth to these Shears and to raise the knap a
Wheel on the
Cogg
succeding paix, for they may be considered as so many pair of shears, let 19 be w
Shaft 2 in Fig 1st let 20 be Cogg Wheels that play into 19, let 21 be Cogg Wheels on bushes. let 22 be
rollers to protect the Cloth from the Wheel of Spring knives, see Sex 2nd let 23 be supporters with
sliders at each end to bring the bloth up to the Stationary knips at. n, and the work is done,
common centre,
See Sec 3rd
Thin
pully
Sec: 3rd is a side view of the Cloth as it passes thro' Fig 3 id the marks and explanctions as before
e, being Brushes, and the dosted line Cloth. Note the bloth at a must be made tense by
or wound on a beam..
Sec: 2nd is a
view.
of
the middle Ring
a
spunge
3rd
set with Oil, Oils the Spring knives they in their
extending access the Machine, this being filing in the first ring being off. It is a
at each end which are screwed
rotation playing against it.-
on the Shaft 2 in
Sec 4th is a perspective view of a different method of fixing the Spring knives
on the round regulating rings
Fig 1t the knives having Springs
the marks, explanations, and references as before
Kielt for twisting the Spring knives; observe When the heel of the Spring knives comes in contact
with the stationary knives what distance the points of the Spring knives are from the edge of the
stationary knives, then as that distance is to the perifery of the Circle in which the Spring knives move
so many degrees of a circle ought the Spring knives to be twisted; otherwise they will cut at
the heel and not at the point.
Note, the Cloth to be shown must have a piece of Cloth tacked at each end long enough to
thue
the Machine