Correct option is A
Main Components of the Apron Mechanism:
1. Traversing Hand Wheel:
· A manual control for moving the carriage horizontally. It allows the operator to manually position the tool along the workpiece or perform manual feeding during machining operations.
2.Feed Lever:
· This lever controls the engagement of the feed mechanism for automatic feed. By engaging the feed lever, the carriage can be moved automatically along the bed at a preselected rate.
3.Feed Selector:
· A mechanism within the apron that allows the selection of different feed rates. This selector is crucial for choosing the appropriate feed for various machining operations, such as roughing or finishing.
4.Lead Screw Engagement Lever:
· This lever engages the carriage with the lead screw for operations like thread cutting. When engaged, the carriage moves in a synchronized manner with the spindle, ensuring precise thread cutting.
