Cutting – Processes – Cutting part way through from opposite sides of work
Patent
1985-05-29
1986-09-30
Schran, Donald R.
Cutting
Processes
Cutting part way through from opposite sides of work
83495, 83873, 83885, 125 23T, B26D 308
Patent
active
046141383
ABSTRACT:
A cutter for sheet materials such as plasterboard and the like which employs a pair of axially spaced, copolanar circular blades with circumferential edges in adjacent noncontacting relationship. Both blades are driven but under conditions such that an edge speed differential exists between the blades. Supported sheet material is passed between the nip region between the blades to effectuate cutting. During cutting, the sheet material is self-propelled through the nip region by the action of the blades. Very little dust is produced during such sheet cutting.
REFERENCES:
patent: 647053 (1900-04-01), Underwood
patent: 898259 (1908-09-01), Preston
patent: 2664950 (1954-01-01), Morgan et al.
patent: 3138049 (1964-06-01), Flory et al.
patent: 3190094 (1965-06-01), Kutas
patent: 3786706 (1974-01-01), Hyatt et al.
patent: 4024784 (1977-05-01), Mueller
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