Plotting head for use in drawing machine

Details Plotting head for use in drawing machine Plotting head for use in drawing machine

1980-04-04

1982-08-24

Martin, Jr., William D.

Recorders

Markers and/or driving means therefor

Stylus feature

33 18R, 33 1M, 401 67, G01D 1524

Patent

active

043463924

ABSTRACT:
A plotting head for use in a drawing machine comprising a housing attached to said drawing machine; a lead holding means installed for vertical movement within said housing and having a vertical through hole; a bias means disposed above said lead holding means and imparting it a continuous descending tendency; a long cover means covering said bias means; a chuck means disposed for vertical movement in the through hole of said lead holding means, provided with a vertical lead inserting hole and having at the lower part a collet portion arranged to shut for clamping the lead and open for releasing the lead depending upon the vertical movement of said chuck means; a gripping means disposed for vertical movement on the bottom wall of said housing and operating to grip the top of the lead; and an actuating means operating to allow said lead holding means to ascend against the force of said bias means.

REFERENCES:
patent: 3293658 (1966-12-01), Sicking
patent: 3345640 (1967-10-01), Sicking
patent: 3939482 (1976-02-01), Cotter
patent: 3971036 (1976-07-01), Gerber et al.
patent: 4015269 (1977-03-01), Edo
patent: 4091393 (1978-05-01), Masuyama et al.

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