Staircase stringer fabricating apparatus

A staircase stringer fabricating apparatus for forming stair step positions on an elongated work piece, comprising:

• a. an elongated frame supporting first and second guide surfaces which are angularly positioned with respect to each other during use;
• b. staircase stringer work piece carriage means mounted to travel on the first guide surface for carrying a stringer work piece upon a guided path at least to a position adjacent the second guide surface;
• c. a plurality of tool means, each mounted for travel on the second guide surface for preparing the work piece with a corresponding plurality of holders that define stair-step positions upon the work piece over a defined overall distance between end stair-step positions;
• and
• d. adjustable spacing means for selectively varying the overall distance, such as for various rise dimensions and a variable number of stair-step positions, so that the individual tool means and correspondingly the individual stair-step positions are equally spaced.

A staircase stringer fabricating apparatus for forming holders that form stair step positions on an elongated work piece having a linear longitudinal axis, comprising:

• a. a machine frame;
• b. tool means supported by the frame for preparing the work piece with one or more holders that define stair step positions;
• c. stringer work piece carriage means movably mounted for travel upon the frame;
• d. guide rail means supported by the frame for defining a path of movement for the work piece carriage means that carries the work piece past the tool means at an angle by the work piece longitudinal axis and the stair step position;
• and
• e. means for moving the carriage means with respect to the tool means.