IMPROVEMENTS IN SCISSORS FOR DETACHING COUPONS AND FOR OTHER PURPOSES
Year: 1884

page_text: COMPLETE SPECIFICATION.
I, LOUIS BLUMFELD of 121 Queen Victoria Street in the city of London,
merchant do hereby declare the nature of my invention for IMPROVEMENTS IN
SCISSORS FOR DETACHING COUPONS AND FOR OTHER PURPOSES and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :—
The object of my invention is to make it possible by a single action to cut a
piece of paper or other material in two directions, the one being at an angle to the
other; as is desirable where coupons are to be detached from the body of a bond or
other paper security.
My invention will be more readily understood on reference to the accompanying
drawings, in which like letters represent like parts.
I construct a pair of scissors wherein the ends (a and b) respectively) of each
blade (A and B) is bent at a right angle (or other desirable angle) to the remainder
of the blade, but so that a space may be left between the bent ends. The object
of leaving this space is that 1 may fix (by means of the screws, e, e) an adjustable
blade (c) on the inner side of the bent end a, and the space should be just sufficient
for this purpose. The screws, c, e, should be of such length that they may hold
the adjustable blade firmly against the bent end a, but they should not protrude
at all on the side of the adjustable blade which faces the bent end b, for by
protruding they might impede the working of the instrument.
The shape and arrangement of the adjustable blade is shown in Fig II (which is
an end view of the bent ends); its inner edge forming one of the cutting edges of
the instrument.
The length of the part of the blades bent to form a and b must depend on the
dimension of the side of the coupon to be cut.
The arrangement and use of the adjustable blade (e) is very important, as (in its
absence) the bent ends of the pair of scissors would continually get farther apart
from wear in use and grinding. The screws, e, e, being previously removed or
released from it, the adjustable blade can be pressed (and held) forward towards
Diens

page_text: the bent end b by means of the screws d, d. These screws (d, d) work into, but
not through, the adjustable blade, and being longer than the combined thickness of
the bent end a and the adjustable blade, they can be made to advance the
adjustable blade in manner above described The screws, d, d, are made longer than.
the combined thickness of the bent end a and the adjustable blade by so much as
to make up for the loss of material likely to occur through wear on the edge of b
and the cutting edge of the adjustable blade. I find from to inch a sufficient
allowance for this purpose. Thus a proper distance can at all times be maintained
between the cutting edges of the bent end 6 and the adjustable blade, so as to keep
the instrument in efficient working order.
.
My scissors are also useful for cutting patterns from cloth stuffs and other dress
materials.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
Scissors constructed with blades having the ends bent at an angle to the rest of
the blade and fitted with an adjustable blade substantially as above
described.