IMPROVEMENTS IN SCISSORS, WHICH INVENTION IS ALSO APPLICABLE TO PAPER-CUTTING AND SIMILAR MACHINES OR APPARATUS."
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by Daniel Peres at the Office of the
Commissioners of Patents on the 4th October 1881.
«
DANIEL PERES, of Solingen, Germany, and Newgate Street, in the City of
London. IMPROVEMENTS IN SCISSORS, WHICH INVENTION IS ALSO APPLICABLE
TO PAPER-CUTTING AND SIMILAR MACHINES OR APPARATUS."
This Invention relates chiefly to scissors, and is designed to provide improved
incans for securing the two blades together so that the cutting effect of the same
may be facilitated. The method of uniting the blades according to this Invention
is also applicable to the blades or knives of machines for cutting paper, cloth,
leather, and the like, also to the knives of apparatus for cutting bread into slices,
and to any similar machines or apparatus.
In carrying the said Invention into practice for the manufacture of scissors
I provide in each of the blades thereof a curved slot into which a stud or pin fixed
to the opposite blade is inserted, these studs serving to guide the blades in their
movement. The slot in one of the blades commences near the base thereof and is
continued upward along the blade in a curved form. The slot in the other or
opposite blade commences somewhat higher up the same, and is also continued
upward in a curved direction. Each of the slots forms the segment of a circle
struck from a point at a slight distance from the blades.
It will be understood from the above description that each blade is provided
with a slot and with a stud, and that the stud fixed to one blade projects into the
slot in the other. One of the studs is provided with a head, which, when the stud
is screwed into the blade, is just above the slot in the opposite blade and prevents
the two blades from becoming separated. This head is provided with a slit in
order that a screw-driver may be applied to secure or remove the said stud. By
securing the blades together in this manner instead of by means of a central pivot,
as is usual, one of the blades is caused to rise when the two blades are separated
for receiving the material to be cut; and when the blades are brought towards
each other for cutting, this blade is drawn downward upon as well as towards the
other blade, and there is thus a tendency to draw the material between the blades
as the operation of cutting takes place, which tendency greatly facilitates the
cutting of the said material, the advantage of this effect being very great when
the scissors are used for heavy materials, such as cloth, leather, and the like.

page_text: According to a modification of my Invention, instead of employing the two
studs and two slots above described, I provide at the lower part of each blade a
lateral projection, the projection on one of the blades being on the cutting edge
side and that on the other blade being on the opposite side. Each of the
projections is provided with an aperture through which a screw stud is passed,
this stud serving as a pivot upon which the blades work in opening and closing.
In one of the blades a curved slot is provided through which passes a screw stud
fixed to the other blade. The stud is provided with a head which lies above the
slot and assists in keeping the two blades in close contact with each other. In
this arrangement one of the blades will also be drawn down over the other in the
act of cutting as described with respect to the first named arrangement.
In adapting my Invention to paper-cutting or similar machines or apparatus,
the same principle of connection is observed, but the modifications necessary
will depend upon the nature of the machine and will be obvious without further
description.