Improvements in or applicable to Circular and Straight Bar Linking Machines.
Year: 1898

page_text: Date of Application, 1st Oct., 1898-Accepted, 7th Jan., 1899
COMPLETE SPECIFICATION..
Improvements in or applicable to Circular and Straight Bar Linking
Machines.
I, JULIUS KÖHLER, of Limbach, Saxony, Germany, Sewing Machine Manu-
facturer, 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:
My said invention which is hereinafter described with reference to the accom-
panying sheet of drawings has for its object the automatic cutting off of the rows
of meshes lying on the points of circular or straight bar linking machines as well
as the removal of the remains of the meshes before linking.
As is well known the fabrics which are to be linked together or on which an
open row of meshes are to be linked off are laid on the points a (Fig. 5) of the link-
ing machine. Owing to their tendency to curl or for the meshes to be distorted
the outside or edge row of meshes is not suitable for this purpose so a deeper row
is chosen. As hitherto practised the rows of meshes above the points have been
removed by hand before linking. This procedure materially limits the produc-
tive capacity of the linking machine.
According to my said invention a shearing appliance automatically cuts the
fabric in the line - (Fig. 5), close over the rows of meshes on which the
fabric hangs and then a swinging brush. clears away the remains y-y of the
meshes.
In the accompanying drawings
Fig. 1 is a side elevation of a circular linking machine.
Figs. 2 and 3 are respectively front elevation and plan on a larger scale, of
parts of Fig. 1.
Fig. 4 is a side elevation of part of a straight bar linking machine.
In the circular linking machine the points a (Figs. 1 and 2) are as usual
secured to a ring 6 which is fed intermittently past the needle c (Fig. 1). The
ring b is supported by a disc plate d (Fig. 2) connected by an arm d with the
body of the machine.
On the disc plate d (Figs. 2 and 3) I arrange a shearing appliance the lower
blade f of which is held by a bracket y while the upper blade fi is attached to an
arm or lever h rotatable about its axis h¹ in the bearings i¹ z. A spring ha presses
the upper blade against the lower one. The pressure of the spring can be
regulated by the screw * and the finger h³. An excentric 5 (Figs. 1 and 2)
provided with a handle for turning it serves to lift the upper shear blade or for
stopping the cutting action.
The arm h (Figs. 2 and 3) which forms one lever with the arm h is connected
by a link (Fig. 3) to a lever 8. which is moved outwards by an excentric on the
main shaft and inwards by a spring (not shown in the drawing). This
mechanism imparts a reciprocating motion to the upper shear blade f¹ (Fig. 3)
against the lower blade.

page_text: The fabric having been cut off close over the row of meshes on the points the
remains y (Fig. 5) of the loops are swept off by the circular brush m (Figs. 1
and 3). The shaft m' of the brush has its bearing in a holder m² swivelling on
a journal or stud m³ for lifting and cleaning the brush.
An arm m on the brush shaft m² is connected by a link m² (Fig. 1). with an
arm mo moved forwards by an excentric on the main shaft k and backwards by
a spring (not shown in the drawing).
By this arrangement the brush only receives a to and fro motion, it is however
of circular shape so that when worn at one place a fresh portion of the periphery
may be brought round to act on the meshes.
In the straight bar linking machine (Fig. 4) the same mechanism is applied
over the points for cutting off and sweeping away the remains of the meshes as
already described with the same letters of reference as in Figures 1, 2, and 3.
The parts are actuated by two cams no on the main shaft.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
The hereinbefore described improvements in circular and straight bar linking
machines consisting of a shearing appliance for cutting off the projecting rows
of meshes close over the meshes to be linked and of a swinging brush for sweeping
away the remains of the cut meshes substantially as set forth and shown.
T: Ofth dare of Cantember 1898
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicant.
E. T. WHITELOW, A.M. Inst. C.E.,
70, Deansgate, Manchester, Agent for the Applicant.