Sulzer Brothers Limited

Werner Julich

Otto Hintsch

Gunter Muller

A locking lever is articulated to a latch. The locking lever is pivoted or swung out against the action of a spring and the pivoting or swinging movement is limited by a stop mounted at an eccentric. The opposite pivoting or swinging movement of the locking lever is limited by a surface at the locking lever which runs-up against a surface at the latch. Upon rotation of a drive shaft carrying the eccentric the latch can now assume a decoupling or decoupled position. Due to the provision of control levers with hook-shaped ends which, when pivoted into a predetermined position, cause the locking lever to run-up or travel against one of the hook-shaped ends, the latch is only then caused to be decoupled when subsequently and in accordance with the weaving program a decoupling operation of the latch is really intended to take place. Otherwise the latch is not decoupled because in that case the locking lever cannot run-up against one of the hook-shaped ends of the control levers.

Coupling arrangement for controlling the harnesses in a weaving machine

The clutch arrangement contains a stroke member which carries two levers and a spring connecting the levers. The stroke member is driven by a drive lever which engages between the two levers. The stroke member drives the bar for the control levers while a scanning arm is moved against the armature of an electromagnet. Both movements occur with a force transmission occuring via the single spring. This provides for especially gentle treatment of the parts. At the same time, relatively few parts are needed.

Clutch arrangement for controlling a heddle of a weaving machine

The clutch arrangement includes a proximity switch which monitors the coupled or uncoupled position of the pawl with the shaft through a transmission linkage as well as the movement of the heddle. Corresponding control signals are emitted to an electronic control device for comparison of the weaving machine with the weave program. In case of faults, the weaving machine can be immediately stopped. The transmission linkage includes levers which are actuated by the control levers for coupling and uncoupling the pawl with and from the shaft. In addition, the strap about the eccentric includes an abutment surface for actuating the transmission linkage to cause the proximity switch to be switched to an on position.

Clutch arrangement for controlling the heddles of a weaving machine

The clutch contains a spring for pulling the arm of the control lever on the stop and an additional auxiliary spring connected with a roller. While the control lever strikes on the stop, the roller moves toward one lever arm so that in a further rotation of the parts, the roller (30) is lifted within a slot while additionally tensioning the auxiliary spring. While the tension of the main spring decreases, that of the auxiliary spring increases correspondingly, so that the control lever is held with sufficient tension on the stop and machine vibrations during the striking or operation can be made harmless or damped.

Clutch arrangement for a heddle of a weaving machine

The link disposed about the eccentric carries two stop elements in the form of rollers. When the pawl is engaged with the driving shaft, the stop rollers move in respective oval paths so as to engage and swing out the control levers to insure that the control levers do not accidentally swing inwardly into the path of the moving pawl or latch locking the pawl in coupled relation with the shaft. The stop rollers also permit an overstroke of the bar to occur in which there is a clearance between the bar and the reversing position of the stroke meter. In this way, the stroke of the stroke meter can be made smaller.

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Wallisellen, Switzerland

Werner Julich