Abstract: A machine-tool module for inserting and staking very small and lightweight contacts in a support member such as an electrical switch finger is disclosed and claimed. The device comprises a rotatable escapement element having a transporter adapted to receive a contact at an escapement receiving position from a first guide. The escapement element bearing the contact then rotates between the receiving position and an escapement delivery position to deliver the contact to a second guide. An impeller system urges the contact along the second guide to the contact installation point. A fluid pressure differential across the contact when the contact is in the guide impels the contact to move along the guide.

Abstract: A modular punch press station is provided for use with a punch press which has a vertically movable ram. The station is useful for inserting a rivet-like contact into an aperture in a carrier piece and it comprises a mounting plate for carrying components of the modular punch press station including a supply device such as a vibratory feeder. The mounting member also carries an insertion station which positions a single contact below the ram in a vertical orientation in the aperture in the carrier piece. Mechanism is provided for feeding the contacts from the supply device to the insertion station such that only a single contact is presented to the insertion station at a time.