Improvements in Knitting Machines.
Year: 1891

page_text: Date of Application, 2nd Oct., 1891
Complete Specification Left, 4th July, 1892-Accepted, 31st Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Knitting Machines.
I CARL GUSTAV SCHATTAUER of Einsiedel in the Kingdom of Saxony, German
Empire Manufacturer do hereby declare the nature of this invention to be as
follows:-
As the ordinary mechanical knitting machine cannot stand any increase of speed
during the tickler period while it might very well run faster during the other
periods and as the tickler period is only very short compared with the other periods
it is natural that there should be a desire to construct knitting machines with
variable speeds. One way that has been adopted with this end in view has been
to make the eccentric for the tickler motions single and that for the ordinary work
double but this offers the disadvantage that the stroke curves get too steep and
when the machine runs at high speed it shakes and knocks and bad work is the
result.
Another method is to put the tickler eccentric on a slow running shaft but this
considerably increases the cost of the loom and it gets out of repair more easily.
According to my invention I obtain a precise and quick alteration of speed by
arranging the shaft which carries the working eccentrics, so that it can be pushed
into a quicker running wheel during the work and into a slower wheel during
ticklering and in order that the corners of socket clutches employed do not wear
too much I let the displacement of the shaft be actuated from a special shaft
carrying the driving pulleys which receives the impetus indirectly from the so
called tickler chain in order to protect the so called tickler buttons from wear.
Dated this 30th day of September 1891.
BONNE & Co.,
57 & 58, Chancery Lane, London, W.C., Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Knitting Machines.
I, CARL GUSTAV SCHATTAUER, of Einsiedel in the Kingdom of Saxony in the
German Empire, Machinist, 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 :-
As the knitting machine will not stand an increase in speed during the covering,
whilst in ordinary use it would easily work twice as quickly, and as the covering
period only forms a small part of the usual working, machines have been constructed
with two speeds in order to attain a greater output for the loom.
In one way in which it has been sought to effect this, the eccentrics for the
covering movement have been made single and those for the usual working double.
This plan has the disadvantage that the working parts become too steep and with
quick work the knocking produces a jar resulting in bad product.
Another way is that the covering eccentric is fixed on a slowly running shaft
which greatly drags on the machine, and in the disengagement of the shafts offers
a no inconsiderable source of repairs.
In order to attain a safe and quick alteration of speed and produce an arrange-
ment suitable for use in a "Cotton's " system of machine the shaft carrying the
working eccentrics is fixed during the working to a quickly revolving wheel and
during the covering to a slowly revolving wheel, and in order that on the insertion

page_text: and withdrawal the corners of the clutches on the sleeves may not be injured,
which would be unavoidable with a machine working 6 to 16 designs, the change is
effected by a special shaft which receives its motion from the reducing belt in an
indirect manner in order to preserve the reducing button from wear.
On the accompanying drawings the apparatus to be fitted for this purpose to 6
each machine is shown.
י
Fig. 3. Front view with quick movement.
Fig. 4. Side view of same.
Figs. 5 and 6 show various details.
On the main shaft a on which in ordinary machines all the eccentrics are fitted,
(and which for simplicity are-here omitted) are loosely fitted the toothed wheels rº¹³, ?ºª
connected to the frame a by means of the guide brackets t¹, t². The wheel r¹ is
connected to the fast pulley R₁, and by engaging in sets the shaft c in rotation
which by means of puts in motion at half the normal speed. To the
wheels are attached clutches in which the clutch sleeves m³, m³ fixed to the
shaft a alternately engage accordingly as the shaft a is moved to the left Fig. 1,
or to the right Fig. 3.
The movement of the shaft a is effected from the shaft c in such manner that the
disc c³ moves the roller of the lever b' mounted on the spindle & to the right (Fig. 1)
whereby the lever arm 63 also mounted on the spindle and engaging between the
discs a¹, a moves the shaft a to the left. The discs c¹ c have for this purpose
circular ribs with openings and ³ of which the rib on the disc c' has a smaller
radius than that of the disc c³.
If, as Fig. 4 shows, the shaft is moved to the left whilst the openings ¹³
stand opposite to the roller the latter comes into contact with the ribs of the
disc and by the rotation thereof is pressed to the left Fig. 3. If the shaft b, on
the contrary, in Fig. 4, is moved to the right the roller y will be actuated by the
ribs of the discs c¹ and be moved to the right (Fig. 1).
The movement of the shaft 6 is effected by the tappet lever * on the lever g, so
that it either bears on the upper tooth d or against the lower tooth d³ of a toothed
cam attached to the crank d and by means of the link d*, imparts a motion to the
left in the first case, and in the second case a motion to the right, to the shaft b.
The tappet lever g' is kept in the central position by the angle levers w', w³ which
are kept up to the stock pins n' n by the spring f, Fig. 6, but can be directed
upwards or downwards from this position by the triangular prism p on the lever p¹
between the teeth d³, c
, d³.
The prism p is in connection, through the rod p³, with the lever / which is raised
by the button k' screwed to the reducing belt k, Fig. 6, as soon as the covering is to
commence. In this case the prism p is also raised (Fig. 6) the tappet lever g³ is
.shifted downwards from the central position and bears then against the lower
tooth (shown in dotted lines in Fig. 6) and moves the shaft b to the right
(Fig. 4). The roller y thereby comes into contact with the rib of the disc c', the
shaft a is moved to the left and the clutch sleeve m² engages in the clutch of the
slowly rotating wheel 74, (Fig. 1). The chain wheel K of the reducing belt is
.connected to a ratchet wheels which is thrown forward by a pawl i connected to
the lever when the eccentric e³ raises the roller m.
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 ;-
A knitting machine in which the main shaft a is moved by a counter shaft c
working at usual speed, so that. at the commencement of the covering the clutch
sleeve m' fixed to the main shaft engages in the clutches of the wheel, rotating at
half speed, and loosely fitted on the main shaft, whilst the clutch sleeve m²,
previously actuating the main shaft, is withdrawn from the wheel ¹ rotating at the

page_text: 5
same speed as the counter shaft, and also loosely fitted on the main shaft, whereby
the necessary movements in the covering are effected at a lower speed than the
usual working speed and the total number of revolutions increased, substantially as
described.
Dated this 4th day of July 1809
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.