Improvements in and relating to the Feed Apparatus in Machines for Cutting Paper, Cloth and the like.
Year: 1899

page_text: Date of Application, 14th July, 1899-Accepted, 30th Sept., 1899
:
COMPLETE SPECIFICATION.
Improvements in and relating to the Feed Apparatus in Machines
for Cutting Paper, Cloth and the like.
I, KARL KRAUSE, of 59, Zweinaundorferstrasse, Leipzig, Germany, Machine
Constructor, 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:-
In machines employed for cutting paper, cloth and the like, the traverse of
the table must vary for each piece, the length and breadth of which is different,
according as the piece is to be cut in the one or other direction. In the present
invention, the variable movement of the table if effected by means of a feed
apparatus, in which the movement of the hand lever is limited by means of two
unequally long or unequally wide detents adjustable on the periphery of a
graduated or dividing disc, and two detent pins attached to the hand lever itself
and inserted in such a manner that first the one and then the other can be
brought into action.
Figure 1 of the annexed drawings is a front elevation, Figure 2 being a
transverse section, of the apparatus. Figure 3 is a plan view of the feed
apparatus. Figure 4 is a sectional elevation of a special form of the hand lever.
Figure 5 is a cross section. Figure 6 is an end view of the same.
A hand lever h is loosely and rotatably mounted on the driving shaft w, and
is provided with a pawl k. On the other hand the ratchet wheel r is firmly
connected with the shaft. With this wheel the pawl k engages. When the
hand-lever is moved to the left, it causes the ratchet wheel r to rotate, and thus
produces a forward movement of the table t, through the rotary motion of the
shaft w, and tooth wheel z, and rack $ attached to the table.
In order that the feed motion may be precisely limited, a disc a furnished with
divisions, is employed which is so fixed to the frame of the machine that the
shaft to can freely rotate through the centre of the disc a. The disc is provided,
on its periphery, with a dovetail shaped groove in which suitably formed claws
or clutches of detents can be guided, so that by means of a screw, they can be
jambed firmly at any desired spot on the periphery.
In Figure 1 the detents b, c and are introduced. The detent b can also be
replaced by a fixed detent, whilst the detents and c² are movable on the
periphery of the graduated or dividing disc a, and by means of a pointer, which
they carry, can be exactly adjusted according to the divisions of the dividing
disc. The movement of the lever h and therewith that of the table, is limited
by means of the detents c¹ and c³. The lever hitself is furnished for this purpose
with two insertable detent pins & and d², as clearly shewn in the sectional view,
Figure 2. These detent pins are under the influence of a spring and can be
drawn back into the body of the lever h and be firmly held. In the drawing,
the detent pin d¹ projects beyond the body of the lever ½ whilst the detent pin
is drawn back into the body of the lever. Thus, in this position of the pins,

page_text: only the detent pin d' comes into action, and upon the lever being moved, abuts
against the detent or against the adjustable detent c¹.
If the hand-lever h is always moved on both sides, so that the detent pin d¹
abuts against the detents, the raichet wheel r must be uniformly pushed to a
corresponding extent and thereby also the tablet and the material can be cut in
strips of equal breadth.
In order that it may now be possible to cut the cut strips into pieces of uniform
length, it is only necessary to turn the table plate to the extent of 90 degrees
and to move the table under the cutting machine by means of the hand-lever h.
This time, however, the detent pin 2 comes into action instead of the detent
and the detent pin d. It is understood that the pieces to be cut are to be longer
than they are broad; in accordance with this, the detent is adjusted on the
dividing disc u.
For the purpose of enabling the hand-lever h to move backwards and forwards
between the detent and the detent c², the detent pin must be drawn back
into the body of the lever and the detent.qin pushed forward. As the latter
is farther from the pivot of the hand-lever than the detent pin, it can be
moved beyond the detent up to the detent which is of suitably greater
height than the detent. The detent b must as a matter of course, be of equal
height if the lever, in moving backwards and forwards is to abut against these
two detents. By means of such a movement of the hand-lever between the
two detents b and c the strips can be fed to the cutter in pieces of the same
length. The hand-lever h can be furnished in the known manner with a third
pine which serves for coupling the hand-lever with the ratchet disc. The
surface of the latter is provided for the same purpose. with a number of holes.
If the pin e be pushed into one of these holes the table can be returned to its
original position by means of the crank.
Instead of the three detent pins d' d and e also, a single movable pin d can be
employed as shown in Figs. 4, 5 and 6, and which is inserted at one of the three
holes o¹, o 03. This detent pin is inserted into the hole o¹ of the hand-lever h
if the latter if moved between the detents b and c or inserted in the hole o³, as
illustrated in the figures, if the hand-lever be moved backwards and forwards
between the detents b and c or, finally, it is inserted in the hole ³, as soon as
the hand-lever has to be coupled with the disc r, in order to return the machine
to its starting position.
'
If, however, only one pin is to be employed in this manner, it must be capable
of being easily removed from the holes of the hand-lever and easily put in again.
It must however be so firmly held in each of the holes as not to shake or fall
out prematurely. The interchangeable or removable pin has therefore to be
firmly held in the hand-lever by means of some suitable contrivance. For this
purpose the hand-lever should be furnished with three securing pins, each of
which projects into one of the holes o¹ 02 03, whilst the detent pin d is provided
with a groove.
The securing pins stare pushed under the action of a spring,
so far into the holes that they recoil, and as soon as the detent pin l is intro-
duced, they spring, when it is farthest in, into the groove formed therein. This
engagement however must only be very slight, so that the detent pin may be
taken out again without too great a strain.
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:-
1. Feed-apparatus in machines for cutting paper, cloth and the like, in which
the feed-motion is effected by means of a hand-lever (h) and a catch or pawl (k),
which is in engagement with a ratchet-wheel (r) on the driving shaft (w), the
distinguishing feature being that for limiting the extent of the stroke, two
adjustable detents on the periphery of a dividing disc, (a), and of unequal height
or breadth, are employed on the one hand, and on the other, two insertable detent

page_text: pins on the hand-lever, alternately, for the purpose of cutting the material in
strips of equal breadth, and, after the turning of the table to the extent of 90
degrees, to cut them into pieces of equal length, substantially as described.
2. A feed-apparatus according to Claim 1, in which the hand-lever (h) carries
the interchangeable or removable detent pin (d) which is secured in its locking
position by the assistance of a spring-pin (s) which engages in a groove formed
in the detent pin, substantially as described.
For the Applicant,
GEDGE & FEENY,
Chartered Patent Agents, 60, Queen Victoria Street, London, E.C.