COUNTERSHAFTS

The lathe can be equiped to order with either "wall" (A) or "roof" (B) type countershafts for power drive, or with countershaft for driving from electric motor, (C). These countershafts are as carefully designed and built as the lathe itself; lubricating arrangements are fully edequate, and the fact that the countershafts are frequently to some extent neglected owing to their inaccessability has been borne in mind in their design. The question of convenience in erecting has also received due consideration, and the most amateur worker can install these countershafts without the slightest difficulty.

Roof and Wall Types - Specifications.

Two hangers of rigid girder section carrying long swivel shaft bearings; bearings having chain lubricator running in central oil sump which is connected by machined ducts to circular end channels for collecting and returning oil to sump. Polished steel shaft carrying three-step cone pulley and fast and loose pulleys for first drive. Striker bar, supported by arms extended from hangers, with belt forks of strong section and carrying heavy pin for striker handle fitted on boss that is adjustable for position along the bar. All pulleys, forks, etc., can be locked in any position longitudinally as required. Diameter of fast and loose pulleys, 6 inches.

Type for Driving from Electric Motor - Specification.

Specially large pulleys, 10 ins diameter, in place of fast and loose on shaft. Bearings, etc., as above, no striking arrangements are necessary and none are fitted. The specially large pulley fitted to this countershaft enables the necessary speed to be obtained from any usual motor, and does not necessitate the use of an abnormally small pulley on the motor.