Improvements in Cloth Cutting Machines.
Year: 1893

page_text: of Application, 23rd May, 1893-Accepted, 24th June, 1893
COMPLETE SPECIFICATION.
Improvements in Cloth Cutting Machines.
I, JACOB PHILIPPSOHN, of 41, Kaiserstrasse, Berlin, in the German Empire,
Manufacturer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention relates to that class of cloth cutting machines in which the cloth
is cut by means of a rotary knife and where it is customary to lift the corners of
the cloth to be cut by hand or by mechanical means so that the bottom layers of
cloth will also become positioned in the middle of the rotary knife thus insuring a
complete cutting of the same.
The latter is effected by means of an oscillating tongue which lifts the cloth in
such a manner as to position it near to the middle of the rotary knife. This
however is defective, as the cloth hangs down at the angle formed by the oscillating
tongue and the bottom layers of cloth are thus not pressed sufficiently against the
knife.
To remedy this defect the means hereinafter described are provided, which also
facilitates an easier turning of the machine and prevents the knife guard from
coming into contact with the cloth on the latter being lifted.
And in order that my invention may be more fully understood it is illustrated in
the annexed sheet of drawings marked with letters of reference indicating like
parts in the various figures.
Fig. 1 is a front view, Fig. 2 a vertical section and Fig. 3 a cross section of the
machine with cloth lifter in its lowest position.
Figs. 4 & 5 show the latter in its highest position, but corresponding otherwise
with Figs. 1 & 2.
In Figs. 1 & 4 the rotary knife is shown in dotted lines, whilst in Fig. 3 it is
left out.
This invention consists essentially in raising the foot of the machine by exerting
pressure on a lever when the cloth requires lifting near the coiners.
a is the foot of the machine which is attached to or formed in one piece with
the plate. The latter has guide strips e which reach over the guide plate d, which
latter is rigidly connected to the body of the machine.
The guide plate d is formed with a slot g through which the lever h passes,
one end of which engages the slide b by projecting into the hole i. The lever h
is raised by exerting pressure on the hand lever m.
In exerting the said pressure the lever h raises the plate
that the lower layers of the cloth resting on the latter are also
middle of the rotary knife. Whilst the foot is raised the rest
serves to support the machine.
and the foot a, so
pressed against the
is stationary and
The plate 6 has a guard o moving simultaneously with the plate when raised.
The front of the plate is covered by a plate s adapted to be thrown back on d
and under ordinary circumstances forming a cover for the rotary knife and other-
wise permitting of exposing the same for cleaning purposes.
In lifting the foot a in a horizontal plane, the hanging down of the cloth in an
angle previously referred to is prevented.
The machine being supported on the table by the rest k only, the machine will
be turned much easier and the raising of the guard o simultaneously with the
foot a prevents the said guard from coming into contact with the cloth under any
conditions.
It may be of advantage to arrange the guard adjustable.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim, is
1st. A cloth cutting machine characterized by a presser foot a adapted to be
raised and remaining always in a horizontal position, substantially as and for the
purpose set forth.
2nd. A cloth cutting machine characterized by a presser foot a adapted to be
raised in combination with a rest k, which remains on the work table when lifting
the presser foot, substantially as and for the purpose set forth.
3rd. A cloth cutting machine characterized by a guard o adapted to be raised,
substantially as and for the purpose set forth.
4th. A cloth cutting machine characterized by a foot a and guard o both adapted
to be raised and a rest k which remains on the work table, whilst the foot a is raised,
substantially as and for the purpose set forth.
Dated this 20th day of May 1893.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.