AN IMPROVE- MENT ON SELF-ACTING APPARATUS ON FLAX SPINNING MACHINES FOR PUTTING FEEDERS OUT OF GEAR, AND FOR INTERRUPTING THE FEEDING OF THREADS IN CASE OF TEARING."
Year: 1878

page_text: PROVISIONAL SPECIFICATION left by Hugo Martiny at the Office of the
Commissioners of Patents on the 19th August 1878.
31
HUGO MARTINY, of the City of Adersbach, in Bohemia, Austria. AN IMPROVE-
MENT ON SELF-ACTING APPARATUS ON FLAX SPINNING MACHINES FOR PUTTING
FEEDERS OUT OF GEAR, AND FOR INTERRUPTING THE FEEDING OF THREADS IN CASE
OF TEARING."
This Invention relates to an improved apparatus connected with flax spinning
machinery for automatically shifting the feed roller, and interrupting the feeding in
case of breakage of a thread.
The apparatus acts directly on the feeding cylinders, which run loose on their
shafts, said shafts being fitted with collars to prevent lateral or sideways movement
of the cylinders. The feed cylinders are set in motion by tooth couplings or clutch
boxes, which boxes move with the shaft, but are capable of sliding sideways
thereon. The toothed couplings or clutch boxes are automatically thrown out of
gear with the cylinders whenever the thread of the feeding apparatus loses its
tension or breaks. This uncoupling action is brought about or effected by means
of special bent lever catch. The thread guide is mounted on a lever arm con-
nected with the said lever catch, and is pivoted and works on a hinge joint on an
uncoupling and coupling lever mounted upon a pivot or stud, and the lower end of
the thread guide lever bears against the thread, whilst its upper end, that is, the
bent lever catch, presses against a constantly rotating shaft provided with a collar
having a volute cam or screw cam on the side thereof, one of said cammed
collars being provided for each pair of feeders. The lover catch at the upper end
of the thread guide lever is provided with a handle.
The uncoupling lever is hinged or pivoted so as to turn sideways on a pivot or.
stud, and by means of a catch piece or pin takes into a groove on the clutch box.
It should be mentioned here that the so-called pressing rollers, which press
against the feed cylinders by a weighted lever, are not to move with their shaft
but on it, two of them being on one shaft; this arrangement allows each of them to
work independently of the other.

page_text: The action of the apparatus is as follows:-When the apparatus is in operation
the slub or roving is conducted from the feeder to the stretching cylinder, this action
being caused by the clutch collar being put in motion by the wedge which fixes it,
the clutch collar, on the shaft, and acting by its cam on the feeder. The coupling
is effected by a sideway movement of the uncoupling and coupling lever.
It is well known that by the pressure of the pressing rollers the slub or roving
is kept firmly on the feeder, and by the aforesaid rotation of the feeders it is at
the same time carried towards the stretching cylinder. The thread guide now
bears against the thread until it breaks or assumes a considerable irregularity,
whereupon the thread guide will move forward with its lower end, and its upper
end, that is, the lever catch, which has hitherto been supported over the screw
cammed collar by the thread, will fall down, and will be moved to one side by the
screw cam of the collar, and as the lever catch is connected with the uncoupling
lever and their pivot is the same, the lateral movement of the lever catch will com-
municate a corresponding movement of the uncoupling lever in the opposite
direction, whereby the clutch box will be uncoupled from and thrown out of gear
with the feed roller, which will immediately stop without the removal of the slub
or roving.
If the spinner requires to join a broken end he will first stop the apparatus by
actuating the lever catch by means of its handle and with it actuating the clutch
box to uncouple same from the feeder.
To recouple the parts the coupling lever is actuated to throw the clutch boxes
into gear, and so on, as desired or required.