A MACHINE FOR CUTTING CLOTH OR OTHER MATERIAL USED IN THE MANUFACTURE OF ALL KINDS OF WEARING APPAREL, AND ALSO FOR CUTTING ALL OTHER ARTICLES OF AN UNIFORM THICKNESS, AND WHICH ARE REQUIRED TO BE OF ANY PARTICULAR PATTERN, AND FOR WHATEVER PURPOSE INTENDED, AND BY WHICH THEY MAY BE CUT WITH PERFECT ACCURACY, AND WITH ALMOST INCONCEIVABLE RAPIDITY
Year: 1854

page_text: by the Act.)
PROVISIONAL SPECIFICATION left by David D. Deming at the Office of
the Commissioners of Patents, with his Petition, on the 16th December
1854.
I, DAVID D. DEMING, of the City and State of New York, United States
of America, do hereby declare the nature of the said Invention for "A
MACHINE FOR CUTTING CLOTH OR OTHER MATERIAL USED IN THE MANUFACTURE
OF ALL KINDS OF WEARING APPAREL, AND ALSO FOR CUTTING ALL OTHER ARTICLES OF
AN UNIFORM THICKNESS, AND WHICH ARE REQUIRED TO BE OF ANY PARTICULAR
PATTERN, AND FOR WHATEVER PURPOSE INTENDED, AND BY WHICH THEY MAY BE CUT
WITH PERFECT ACCURACY, AND WITH ALMOST INCONCEIVABLE RAPIDITY," to be as
follows:-
My cutting machine has two cylinders, which may be larger or smaller,
according to the size of the article to be cut, situated one above the other, and
so placed in respect to each other that their surfaces shall be in contact, but
not interfere with the free movement of either. The upper cylinder is of iron,
or of some firm and solid material, & in or upon its surface are firmly
fastened cutters or knives, arranged in shape according to the desired pattern
of the article or thing to be cut; and these knives or cutters strike or press
upon the surface of the lower cylinder, which is of wood, or of some material
suitable for permitting the knives to press firmly against it without injuring in
any respect the sharp edges of the knives. This lower cylinder I usually

page_text: make of wood, but it may be made of bull's hide, or other suitable material.
As the upper cylinder, from its solidity, and the knives which are attached to
it, has a considerable weight, and so much that it would press so heavily upon
the lower cylinder as to interfere with the perfect action of the machine, I
place the journals of the upper cylinder upon helical springs, of such an elas-
ticity as to allow the upper cylinder to press upon the lower one only sufficient
for its free and perfect action. A single cylinder contains all the necessary
patterns or forms required in a coat, and as the cloth passes double through
between the rollers, one revolution of the cylinder cuts out two coats; or
patterns for two pairs of pantaloons may be placed on a cylinder, and different
cylinders contain different patterns, and these may be substituted at pleasure
the one for the other. These cylinders may be moved by any desired power,
and may be revolved at such rapidity as to cut a coat per second.
The cloth, before it passes through the cylinders described, passes over or
between two smaller cylinders or rollers, which keep the cloth or material
sufficiently tight to remove folds, &c., and the cloth may be taken direct from
the peice, or from a larger roller, around which it has been wound like paper
in a telegraphic machine, by machinery or otherwise.
I claim the device or application of permanent knives or cutters, arranged
in any desired pattern or shape, and whether upon cylinders or otherwise, and
which cut the article required by means of pressure upon them.