Process and means for cutting hard objects or materials without

Details Process and means for cutting hard objects or materials without Process and means for cutting hard objects or materials without

1987-08-20

1989-06-06

Yost, Frank T.

Cutting

Processes

30388, 30392, 128317, A61F 1502

Patent

active

048360694

ABSTRACT:
The invention concerns a process and apparatus for cutting hard objects or materials without cutting softer objects or materials.
In the invention, a transmission imparts to the cutting element a relatively slow periodic motion that is combined with a second, more rapid periodic motion consisting of relatively low-amplitude vibrations, with the second motion being imparted by oscillation. The invention may be applied to jigsaws and circular saws.

REFERENCES:
patent: 1763730 (1930-06-01), Von Lackum
patent: 2639737 (1953-05-01), Forsberg
patent: 3103069 (1963-09-01), Gary
patent: 3905105 (1975-09-01), Tuke
patent: 3978862 (1976-09-01), Morrison
patent: 4018090 (1977-04-01), Brems
patent: 4628605 (1986-12-01), Clowers
Machine Design, vol. 35, No. 30, Dec. 1963.

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