Year: 1887

page_text: Date of Application, 28th Jan., 1887
Complete Left, 24th Sept., 1887
Complete Accepted, 25th Oct., 1887
I, OTTO POMMRICH, of Chemnitz, in the Kingdom of Saxony, Empire of Germany,
Manufacturer, do hereby declare the nature of this invention to be as follows:-
This invention relates to mechanism to be combined with knitting machines for the
purpose of automatically arresting the machine, when the desired number of rows or
stitches have been made.
Referring to the accompanying drawing :
Fig. 1 is a front elevation, Fig. 2 a plan of the apparatus. A frame consisting of
two standards A and A connected with each other by transverses, carries on one of the
standards a pivot a carrying a disengageable pulley 6 driven continually by power.
This pulley is caused to engage or disengage with the toothed wheel e by means of a
lever B carrying an index d.-The shaft journalled in the standards A A, carries
the drum D provided as shown in the drawing, with an endless groove, the said shaft
being driven by the gear ele. The axle also carries the worm g, gearing into the
worm wheel i situated on the vertically journalled shaft h for setting the dial & with
the displaceable hand in slow rotation. When the adjustable hand abuts against
the index d fastened to the lever D, the pulley is set out of connection with the
wheel e, by which means the drum D, deprived of power, is brought to rest.
By this contrivance it is possible to adjust the apparatus at will for a suitable
number of to-and fro movements of the cam slide or corresponding part sliding in the
groove of the drum D, so that the slide will be automatically arrested at any desired
moment. The slide can also be arrested at any time by suitably shifting the
ever B.
Dated this 28th day of I

page_text: Improvements in Knitting Machines.
I, OTTO POMMRICH, of Chemnitz in the Kingdom of Saxony, Empire of Germany
Manufacturer, do hereby declare the nature of this invention and in what manner the
same is to be performed to be particularly described in and by the following
statement:-
This invention relates to knitting and consists in mechanism to be combined with
the cam plate of a knitting machine, which operates the needle butts, said mechanismu
enabling the cam plate to be deprived of driving force and, therefore arrested in its
reciprocating course after the formation of a desired number of stitches or rows of
stitches.
The drawings filed with my Provisional Specification illustrate the machinery for
driving said cam plate this machinery being that most convenient for the application
of the hereinafter described arresting mechanism.
In these drawings,
Fig. 1 is an elevation of the said driving machinery, with the arresting mechanism
combined therewith.
Fig. 2 is a plan thereof.
The construction and operation of a cam plate of a "Lamb" or similar knitting machine
being well known to those skilled in the art, it is not necessary to show such part-
The said cain plate moves back and forth in a horizontal path and is provided with a
suitable projecting pin by which it may be driven.-Before said cam plate and
journalled parallel to the path thereof is the drum D having on or in its surface, the
double or cross spiral track or groove E-The said track passes from, or near from,
one end of the drum spirally around the same to, or near to, the other end thereof
completing in this course one revolution around the drum-The track thence returns
with a similar spiral in the contrary direction crossing the first spiral at or near the
middle of the drum, to the first end of the drum where it continues into the first
spiral The driving pin of the cam plate engages into said groove track, and being
capable of horizontal movement only, is driven to and fro by the revolution of the
drum, completing one out and return course for each two revolutions of the drum-
Thus cach revolution of the drum D completes one row of stitches in the fabric
knitted in the machine.
The drum D is journalled in standards A. A. The driving shaft is journaled also
in bearings in said standards, the said shaft being driven by engine power through
pulleys G. or by man power through treadle plate H with connecting rod and crank
(indicated by dotted lines in Fig. 1). The driving shaft carries a cord pulley and i
desired a fly wheel as shown-The said cord pulley is geared by a cord with a similar
pulley b revolvable and displaceable laterally upon the pin a-The said pin carries
revolvably thereon the spur wheel e having clutch teeth upon one side, the pulley
being provided with clutch teeth may be engaged with or disengaged from said spu
wheel. The spur wheel e gears with the spur wheel e' fixed upon the shaft f. of the
drum D. When therefore the pulley b is clutched to the spur wheel e the drum Di
capable of operation by power applied to the driving shaft. [The disengagement o
engagement of the clutch between the pulley b and the spur wheel e is operated by o
through the lever B pivoted to the frame of the machine.
Upon the shaft f. is a worm g gearing with a worm wheel i upon the shaft h

page_text: Said shaft carries a disc divided upon its periphery, each division equivalent for
instance to the amount of revolution given to the shaft h with one revolution of the
drum D, that is to say during the knitting of one row of stitches-Upon the shaft h
over the dial is the indicator 1, the same may be shifted around the dial to any
desired division and there fixed-Í do not confine myself to any particular manner of
fixing said indicator, since the same may be performed in a variety of ways, as for
instance by a nut upon the shaft / (the latter being screw threaded during a part to
receive such nut), capable of being screwed down upon the boss of said indicator-
The indicator may even, when used in a manner hereinafter described, be fixed perma-
nently to, or formed as part of, said dial k.-Upon the lever B is a pin c having a
finger d extended over the dial k just free of the surface of the said dial-The shaft h
is capable of being lifted upward against the pressure of the spring m so as to
temporarily disengage the worm wheel from the worm g and so enable the shaft h
with parts thereon to be independently revolved to bring the zero division of the dial
coincident with the finger d; the indicator being then fixed at the desired division-
If, as indicated above, the indicator is fixed permanently to the dial, this forms the
zero point of the scale thereon and the shaft his turned until the finger d reads
coincident with the required division on the dial & equivalent to the number of stitch
rows to be knitted, the operation being essentially the same in either case.
The shaft or indicator having been set as described, and the pulley b clutched with
the spur wheel
e, power is applied to the driving shaft and the knitting is performed
and continues until the indicator is carried against the pin d; the indicator, which
is preferably bevelled at the end, drives under said pin and raises the same thus
deflecting the lever B and disengaging the clutch; the spur wheel e being deprived
of driving power, the drum D and mechanism stop (assisted if necessary by brake
pressure), and the knitting is arrested.
The reengagement of the clutch is effected by hand pressure on lever B.
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) In a knitting machine, the combination with the cam plate of mechanism
adapted to operate said cam plate and capable of being coupled therewith and
uncoupled therefrom, a lever B for operating the uncoupling of said mechanism and
an adjustable dial having indicator adapted to operate said lever B, said dial
evolved by gear in connection with the cam plate for the purpose set forth.
2) In a knitting machine having a plane bed and reciprocating cam plate a pin
on said cam plate in combination with a drum D having groove substantially as set
orth, said drum capable of being revolved by power through intervention of a clutch,
ever B for operating the engagement and disengagement of said clutch, dial k, gear
or revolving said dial in connection with drum D and an indicator on said dial for
he purpose of operating after predetermined interval the deflection of said lever for
he disengagement of said clutch.
3) The combination of grooved drum D shaft f. spur wheel e¹ on said shaft spur
wheel e gearing with e¹ and having clutch teeth on one. side, pulley 6 having clutch
eeth adapted to engage with those on e, worm g on shaft f. vertically displaceable
haft having worm wheel i gearing in said worm dial on said shaft /, index / on
aid dial spring m and lever B having finger d substantially as and for the purpose
et forth.
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