Loom sley drive - has speed-controlled motor to act on cam shaft to give sley more rapid movement in and out of working position
The drive for the sley in a loom, with toggle levers on the sley and pedestals operated by the eccentric drive action of a cam disc, has a rotary speed controlled motor to power the shaft for the cam disc. The shaft pref. has a higher rotary speed when the sley is moved away from the fabric edge and when it is moved back to the fabric edge between the working positions and a rear position, than when the sley is at rest through the cam drive. ADVANTAGE - The mechanism allows high working speeds to be achieved on large looms, without affecting the time span required for the sley to be at rest