Quill-feed speed handle

A handle assembly for producing rotative motion in an operating member of a machine element, said machine element operating member including structure defining at least two spaced-apart, axially directed bores, said assembly comprising:

• a) a member engagement housing including means for coupling said housing to said member in a confronting relationship while permitting relative rotation between said housing and said operating member;
• b) an actuating handle pivotally mounted to said housing and movable between released and machine element operating positions;
• c) at least two pins reciprocally mounted in said engagement housing and movable into and out of said spaced-apart bores of said operating member;
• d) means operatively connecting said pins to said actuating handle such that movement in said handle between said released and operating positions produces attendant, concurrent motion in said pins into and out of said machine element operating member bores;
• e) said means operatively connecting said pins comprising a notch defined by each pin engageable with a peripheral region of said handle;
• and,
• f) means biasing said pins towards said machine element operating position.

A handle assembly for producing rotational movement in a machine element having structure defining an engagement region having at least two engagement recesses, comprising:

• a) structure engaging housing including at least two spaced apart bores positioned in confronting relation with said machine element structure when said housing is operatively connected to said machine element;
• b) means coupling said housing to said structure, said coupling maintaining said confronting relationship between said housing and said engagement region of said structure while permitting relative rotation therebetween;
• c) an actuating handle pivotally connected to said housing and movable between structure engaging and structure releasing positions;
• d) a pair of pins slidably supported in said housing bores;
• e) each of said pins defining a notch near an inner end, said notch sized to receive a peripheral portion of said actuating handle such that movement in said handle between said structure releasing and structure engaging positions produces concurrent movement in said pins, said pins being aligned with said recesses and moving into said recesses when said actuating handle moves to said structure engaging position;
• and,
• f) means biasing said pins toward said structure engaging position.