Sheet feed tractor

Details Sheet feed tractor Sheet feed tractor

1978-11-06

1980-03-25

McCarthy, Edward J.

Advancing material of indeterminate length

Means to engage longitudinally spaced modifications in material

Pins on flexible belt or chain

B63H 1738

Patent

active

041946600

ABSTRACT:
A sheet-feed tractor is provided with raised land portions adjacent its drive and idler wheels. The raised land portions are positioned on the chassis of the tractor and shaped to form wall surfaces that are in radial registration with borders on a drive belt trained around the drive and idler wheels. The wall surfaces provide a positive means for preventing outward movement of the drive belt off the drive wheel and therefore prevent their disengagement.

REFERENCES:
patent: 2923543 (1960-02-01), Metzner
patent: 3214162 (1965-10-01), Breidenbach
patent: 3498514 (1970-03-01), Howard
patent: 3606122 (1971-09-01), Brewster
patent: 3938721 (1976-02-01), Staneck
patent: 4130230 (1978-12-01), Seitz

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