AN IMPROVED KNITTING MACHINE FOR THE MANUFACTURE OF JACQUARD FANCY STRIPED REGULAR DOUBLE WEB GOODS WITH DIFFERENT THREADS
Year: 1879

page_text: PROVISIONAL SPECIFICATION left by Friedrich Hermann Felix Engel
at the Office of the Commissioners of Patents on the 14th February 1879.
A communication from Biernatzki and Company, of Hamburg, in the German
Empire.
FRIEDRICH HERMANN FELIX ENGEL, Civil Engineer and Patent Agent, in the
City of Hamburg, Germany. "AN IMPROVED KNITTING MACHINE FOR THE
MANUFACTURE OF JACQUARD FANCY STRIPED REGULAR DOUBLE WEB GOODS
WITH DIFFERENT THREADS." A communication from Biernatzki and Company, of
Hamburg, in the German Empire.
This machine relates to the straight rib top or Cardigan frames with two rows of
needles for the manufacture of double web goods.
In the accompanying Drawings, Figs. and 5 are sectional side views; Figs. 2
and 7, front views; Figs. 6, a side elevation; Fig. 8, ground plan; and Figs. 3
and 4, details of the machine.
The frame needles a (Fig. 1) are latch needles, and are placed within a slot or
groove of an inclined plate c which is supported by the frame boards c¹. These
needles have a hook a at their lower end, by means of which the levers k³, k³, of an
angle bar k, can act to pull on all needles at one time in a downward direction. A
little further upward the needles are furnished with the projections a², which in
same manner as a³, extend over the groove of plate c, and against which a wedge 1
of the rod o works in such manner that it moves the needles downward one after
the other, when rod o receives horizontal motion. The rod o rests in bearings of
frame c, and is moved to right or left hand side by means of the cords 21, 22,
(Figs. 2, 6, & 8). These cords are placed upon rollers 29 (Fig. 2) and 2 (Fig. 1)
fastened to the frame. These rollers are in connection with the levers y, y, of a
treadle, the levers being placed one upon each side of the machine. When these
levers are alternatively pressed down, they will move the rod o and wedge 1 side-
ways, and draw the lifted needles upon which the thread has been placed down one
after the other. The needles draw the thread below the upper edgo of c in form of
a loop through each mesh of the fabric 19, thus producing the new meshes of the
fabric. The needles a are consequently moved downward all together by means of
k, and individually by means of rod o and wedge 1. By means of the angle bar Z
and levers ',,, they (that is the needles a) are lifted again at same time as soon
as strikes the hook a³. Together with this upward motion, rod m is lifted by the
arms m', and is placed upon the latches of the open needles a, thus preventing the
Din B31

page_text: same from closing or locking when the old meshes slip from the needles. Before
beginning a row of loops, all needles a are lifted, as is shown in Fig. 3, to ensure
that all old meshes do hang behind the latches, and they (the needles a) are then
pulled back (Fig. 4) far enough for the latches a³ to reach over the last meshes, the
needles having then only a short distance to be pulled down to form the new
meshes. In the mean time m is moved downwards far enough to allow of the re-
closing of the latches. The position of bar o regulates the depth on which the
needles are moved downward, and consequently the length of the meshes. The bar
o can be adjusted by means of the screws (Fig. 6), which press the bearings of o
downward, while the springs ³ press the bearings upward when the screws c' are
released.
As the angle bars k and must occupy a certain position against each other to
get hold of the hooks a³ at the proper time, the levers 13 and k³, by which they are
moved, are connected by a rod i (Fig. 1).
The machine needles b are likewise latch needles, each of which is placed in a
groove of a bar & which is screwed upon another bar e. Those needles are bent at
the lower end in form of a hook b¹, and they are kept in position by a third bar
which presses against these hooks. d and e therefore form the needle bar of the
rib top machine which is connected by means of bars e to a shaft c' (Figs. 1 and 2).
This shaft c' is placed so as to be free to turn in arms c8 of a second shaft c, from
which an arm co reaches rearward to the hooks 5, 6, by which co is attached to
a pin 4. The bar g is carried by two arms g₁ placed so as to be free to turn on
the ends of shaft h2, and by means of springs is forced towards the bars e, ef.
The whole rib top machine is turnable on eº, and can be lifted high enough to
enable the needles to reach with the latches over the old meshes. The plate e, es,
which reaches with c¹ (Fig. 5) to the needles b, prevents closing of the latches.
When the machine is lowered again (that is, the loops are drawn through
the old meshes), it presses by means of rod e (Fig. 5 and 2) against pin 25, lifts
arm 26, 24, which pushes e' upward in the position shown in dotted lines, and
· allows the latches to be closed. When the machine is lifted again, lover 25, 26,
(Fig, 5) is stopped by a spring 27, until bar 28 connecting e³ and 25, brings the
same in motion again and lowers at same time 24, to prevent the edge e¹ reacting b
before the old meshes slip on b over the latches. The rib top machine is lowered
by means of the lever k, k, catching hook 5 at 6 by arm f¹ and rod f, and releasing
the same from pin 4. When the row of meshes is completed on the frame needles a,
the machine needles b move downward and form the corresponding row of loops.
A spring 8 (Fig. 1) removes the rib top machine from c, to allow the meshes to
become completely finished, and prevent the same from rising again on the needles
b. By a rod not shown in the Drawing, lever es, e, is connected with 1³, 13, to
bring at proper time the two rows of needles in correct position towards each
other.
When a needle of row a shall be placed out of work (in case of deminishing the
breadth of the fabric), it is drawn downward so far as to bring hook a² beneath
bar . Bar is for this purpose lifted by means of lever 36. For row b, the
corresponding needle is drawn downward, until hook b' comes beneath g to 3', g
being before removed a short distance from e.
The sheet his used for finishing the machine loops, and rests by means of pins q
on arms hª (Figs. 1 and 2). These arms pivot on bolts 35, and are connected by a
rod h³, in consequence of which they can be turned outward or inward at same
time; they are kept in position by a spring h. Through arms h² and lever con-
nection h2, h3, sheet h can be lifted for finishing the machine loops.
The before described knitting machine produces a thoroughly uniform row of
loops in double web goods, which cannot be attained with other machines hitherto
known.
When the machine is to work with one colour thread, guides p are used which
are attached to bars p, p, (Fig. 8). Each of these bars slides on a rod q, upon
which it is kept in position by means of springs, as is shown in Fig. 8. By a feeder

page_text: o and a catch o' the rod q is in connection with bar o, and moved sideway on the
latter, at same time moving the thread guide p, p, which is stopped by the pins 38.
The length of the free motion of p, p', is adjustable by means of the toothed rod 37,
a spring 10, and hook 40, according to the breadth of the fabric. The threads are
placed by the guides p, p¹, between the crossing needles a, b, as is shown in Fig. 1.
The supporting arms p rest with arms p' (Fig. 1) upon the bar n, and slide upon
the latter. When the machine is to produce a fabric of different coloured threads, as at
17, the thread guider must be applied. A number of tubes r guide the required
number of threads from the bobbins to the needles. The guides are fastened to a
bar which rests movable on a rod For securing a proper vertical_position,
an arm is placed upon rod (Fig. 1), as soon as all guides rare outside of the
row of needles. When this guiding apparatus is to be placed out of work, the same
is turned upward on 12, and attached to a hook 30 (Fig. 2) to bring the guides r
out of the reach of the needles.
8
The required tension of the threads 17 is attained by the following device :-
Each thread is guided through an opening of bar 8, then underneath the lower bar t,
and then through an eye of a wire u to the guiding tube r. The bar a is supported
by two levers 8, 81, 82, and each wire u is fastened to a lever u¹, u³, which turns in
a forked arm ut. At both sides of the frame (Fig. 2), two levers u³, uo, likewiso
placed in forked arms, carry a cross rod us, and can be lifted or lowered by a rod
32, 33. Generally the levers will hang downward with us, as bottom end and 33
rests on bar o, which forms with its triangles 1 the meshes of the frame needles.
When the meshes are formed, one of the two projections 03 or 0 (Fig. 8) comes
underneath rod 33, lifts the same, and at same time bar us, and then the tension of
all threads 17 begins, for as soon as u³ is lifted and u lowered, the weight of each
lever 82, 8, is lowered, and bar a enters between the bars t and holds the threads 17
fast. At same time the ends us fall down by their own weight, and u¹ and u are
lifted in the position shown in dotted lines (Fig. 1). Each wire ring u then draws
the threads upward, and causes the tension. When the thread guides r are to be
moved sideways to the new row, each thread moves downward correspondingly, and
partly overcomes the weight of u. When the forming of the meshes begins again,
the bar o moves sideway, o passes underneath 33, and 33 and of move downward.
At same time bar u³ is placed upon all wires, and brings the same downward in
horizontal position, us in connection with s lifts the weights again, and rod 8
swing out from t, t, to allow the threads to get into the needles.