Improvements in the Construction of Lamb's Knitting machine.
Year: 1885

page_text: |Improvements in the Construction of Lamb's Knitting machine.
I LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Proprietor of the Patent
Industrial and Financial Agency 30 Finsbury Pavement London E.C. do hereby
declare the nature of said invention for "IMPROVEMENTS IN THE CONSTRUCTION
OF LAMB'S KNITTING MACHINE" a communication to me from abroad by
G. F. Grosser Manufacturer of Markersdorf near Burgstadt in the Kingdom of
Saxony German Empire to be as follows:-
These improvements have reference to knitting machines in which two rows of
needles held down by springs lie in planes which cross each other when the needles
The movements of the needles are controlled by heads or projections which
slide up and down by means of triangles or other suitable moving devices mounted
on a carrier which passes over the needles in alternate directions.
move
When the knitted material on a Lambs machine is to be enlarged so that the
new needle takes up the last stitch of the preceeding row, one of the needles of this
row will be without a stitch thus leaving a hole in the material.
By this method such holes are not only avoided but on the contrary more stitches
are made.
If the carrier is moved from right to left in which position the front needle row is
in action, a needle in the back needle row is then moved upwards till it catches the
thread. It remains in this position until it is (on the return of the carrier which
is moving the back needle row) moved upwards by means of the middle triangle,
as are also the other needles in the same row-so that the loop is caught by the
tongue of the needle, and the new thread is placed in the book of the needle. But
before the first needle is raised a needle of the front row is moved upwards and
catches the new thread.
In the next movement of the carrier from right to left the needle of the front
needle row is-by means of the middle triangle of the front Fontour moved upwards
until the loop resting on it falls behind the tongue and the new thread catches in
the hook when it goes down into its lowest position pulling the new thread through
the loon
;

page_text: In this manner an additional needle in each needle row is brought into action
and the hose is enlarged by two stitches.
The carrier carries beside the two sets of triangles, a middle triangle which can
be withdrawn into the set plate, two auxiliary supporters for sustaining, and
triangles for guiding the needles back to their normal position.
The springs in the needle grooves are provided with heads and can if necessary
be moved by the triangles as well as the needles.
COMPLETE SPECIFICATION.
Improvements in the Construction of Lamb's Knitting Machine.
I LORENTZ ALBERT GROTH K.G.V. Civil Engineer and Proprietor of the Patent
Industrial and Financial Agency 30 Finsbury Pavement London E.C. do hereby
declare the nature of said invention for "IMPROVEMENTS IN THE CONSTRUCTION
OF LAMB'S KNITTING MACHINE" a communication to me from abroad by 1
G. Freidrich Grosser, Manufacturer of Markersdorf near Burgstadt in the Kingdom
of Saxony German Empire and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement:-
These improvements have reference to knitting machines in which two rows of
needles held down by springs lie in planes which cross each other when the needles
move The movements of the needles are controlled by heads or projections which
slide up and down or are held by means of triangles or other suitable moving
devices mounted on a carrier which passes over the needles in alternate directions.
When the knitted material on a Lamb's machine is to be enlarged in such a way
that the new needles take up the last stitch of the preceeding row, one of the
needles of this row (the preceeding row will be without a stitch thus leaving a hole
in the material.
By this method such holes are not only avoided but on the contrary more stitches
are made.
In the accompanying drawings
Fig. 1. shows a side view of the machine partly in section the scale being half
the natural size.
Fig. 10. a side view on a smaller scale.
Fig. 11, a front view also on a small scale,

page_text: Fig. 2. shews parts of the back (upper part) and front (lower part) needle
Fontours with the triangles in plan at the moment when the triangles begin their
movement from right to left.
Fig. 3 shows the same parts when the Fontours with their respective carriers
have just finished the movement from left to right.
Fig. 4 shews the formation of the new loop on the right side of the hose.
Fig. 5 the same on the left side.
Figs. 6. 7. 8. 9. show the working of the needles on an enlarged scale.
If the carrier is moved in the direction pointed out by the arrow in Fig. 2. in
which position the front needle row is in action, the needle u in the back needle
row is then moved upwards till it catches the thread o The needle u remains in
this position until it is (on the return of the carrier which is moving the back
needle row) moved upwards by means of the middle triangle b as is also the other
needles in same row-so that the loop is caught by the tongue of the needle Fig. 8
and the new thread is placed in the hook of the needle But before the needle u
Fig. 2 is raised, the needle w of the front needle row is moved upwards and catches
the new thread.
In the next movement of the carrier from right to left the needle w is by means
of the middle triangle of the front needle plate moved upwards until the loop
resting on it falls behind tongue and the new thread catches in the hook when it
goes down into its lowest position pulling the new thread through the loop.
In this manner an additional needle in each needle row is brought into action
and the hose is enlarged by two stitches.
This operation is repeated on the left side of the machine thus enlarging the hose
by four stitches.
The combined operation of the needles, needle springs is as follows:-
As soon as for instance the back needle row is in operation the middle triangle b
of the back Fontour is moved backwards in the plate and the front middle
triangle a brought into action Fig. 2 upon which the needle spring f¹ is moved up
so high that the auxiliary lifter h¹ moving by means of the carrier from right to
left catches the hook k Fig. 3 and lifts the spring as well as the needle into the
position shewn in Fig. 2.
By the continued motion of the carrier the triangle g' will bring the spring back
to its lowest position leaving the needle Fig. 3 stationary till moved by the
back Fontour as soon as the carrier moves from left to right whereby the middle
triangle is brought into action, and the middle triangle a withdrawn into the
plate. But before this or any of the next movements of the carrier are finished
the spring 3 is raised till caught by the auxiliary lifter h and brought together
with the needle w into the position shewn in Fig. 3 in order to take up the stitch
of the other Fontour.
Figs. 4. and 5 show the formation of the new loop on the right and left side of
the hose respectively It is to be understood that the stitches 1. 2. 3. and 4. are
formed by the back and the stitches 5. 6. 7. on the front needle row, and also that
the stitches 1. 2. 6. and 7 exist at the beginning of the while the stitches 3. 4. and 5
are formed during the hereinafter described manipulations The arrows show in
what direction the thread is laid.
As soon as the carrier has finished its movement from left to right and the return
movement begins the back Fontour raises a needle u Fig. 2 and the thread places
itself on the needle in the form of a stitch o.
When the mesh p in the third row Fig. 5 is made the needles u, v, Fig. 3 are
raised by the middle triangle b in the back needle row while during the movement
of the carrier from left to right in the third row, the needle w is by means of the
auxiliary triangle h in the front needle row raised high enough Fig. 6 to allow the
thread to be placed over it, and catches the thread between the needles u and v
thus forming a loop Fig. 7 the said thread having also formed the stitch between
the meshes q and Fig. 5. On the following movement of the carrier from right

page_text: to left Fig. 8. the loop 8 is placed under the tongue of the needle w and the new
thread is pulled through the loop s and forms the stitch t Fig. 9.
The fifth row is placed and made in the same manner as the third, without any
alteration but in the sixth row a stitch is placed on a new needle in the back needle
row as in the second row.
The machine by means of which my improvements are carried out is shown in
Figs. 1. 10 and 11. By each revolution of the main axle the wheels d are turned
one tooth by means of the pieces c¹, thereby moving the chains & placed thereon
These chains are provided with teeth ¹ at suitable distances which place the arms i l
in the position shown by dotted lines in Fig. 1 whereby the hook and the wheel m¹
connected with the spindle m is moved one tooth and moves the female screw m²
Fig. 11. one needle division. On the thread conductor Fig. 1-connected with
the female screw-is a frame 2 placed in a downward direction and in which the
bolt is moveable Fig. 1 and by means of the spring is constantly pressed
against the plate which is placed across the whole width of the machine and
rests in forks 28 which are placed on both front sides and are moved by means of
the teeth into the position shown by dotted lines in Fig. 1, the plate and the
part are also moved up so that it raises the springs for f³ of the needles which
are to be brought into action, high enough to reach the auxiliary lifter h or h¹ and
to place it in working order Fig. 2. The bolt 3 is however brought back to its
lowest position by means of the spring Fig. 1 before the triangle g or g¹ has
pressed the spring f¹ or f³ into its lowest position.
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. The enlargement of the knitted material on a Lamb's machine so that a new
empty needle w is added to one of the "needle rows" which takes up automatically
the last stitch s in the other Fontour to use it as a beginning of a new row
thereby avoiding a hole in the material as herein before described and illustrated in
the drawings.
2. The improvements in the machine referring especially to the automatic
carrier consisting of the auxiliary triangles g gh h¹; female screw m², and
adjustable bolt 3 principally as herein before described and illustrated in the
drawings.
Dated the 17th day of February 1885.