Multispot grid-welding machine

Details Multispot grid-welding machine Multispot grid-welding machine

1983-09-08

1985-07-16

Envall, Jr., Roy N.

Electric heating

Metal heating

Wire, rod, or bar bonding

219 861, 219 87, B23K 1110

Patent

active

045298580

ABSTRACT:
A multispot grid-welding machine has an electrode-carrier beam movable up and down and a plurality of guide rods mounting a plurality of electrode units for movement on the beam. Pressure springs bias the electrode units in a direction towards the grid being welded, each electrode unit being movable into a working position and a rest position in which it is retracted. A plurality of return springs act on the electrode units, the return springs being considerably weaker than the pressure springs and acting to shift the respective electrode units on the working position into the retracted position. Devices are provided for advancing selected electrode units into the working position by overcoming the force of the return springs.

REFERENCES:
patent: 2446648 (1948-08-01), Glantzer
patent: 2497260 (1950-02-01), Griesemer
patent: 3663789 (1972-05-01), Camardella

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