Advancing material of indeterminate length – Means to engage longitudinally spaced modifications in material – Pins on flexible belt or chain
Patent
1988-02-08
1989-07-04
Gilreath, Stanley N.
Advancing material of indeterminate length
Means to engage longitudinally spaced modifications in material
Pins on flexible belt or chain
B65H 2020
Patent
active
048443140
ABSTRACT:
A tractor for feeding perforated paper has an endless belt of flexible material having pins and teeth extending in opposite directions from said belt. The belt has more rigid sections corresponding to the locations of the teeth between flexible web sections. A pulley is provided which has curved sections and grooves for receiving the teeth of the belt. The curved sections comprise an arc with ends having points of tangency with planes of straight sections of the belt extending across the grooves. The curved sections may comprise a composite arc having end arc sections with points of tangency with the planes of the straight sections of the belt and a center arc section having points of tangency with the end arc sections. The curved sections may also be an arc which has a continuously increasing radius of curvature from the points of tangency with the planes of the straight sections of the belt to a center line between the grooves.
REFERENCES:
patent: 3825162 (1974-07-01), Hubbard
patent: 4193527 (1980-03-01), Rutishauser
patent: 4214691 (1980-07-01), Van Newman
patent: 4218932 (1980-08-01), McComber
patent: 4295837 (1981-10-01), Marsh
patent: 4453660 (1984-06-01), Cornell et al.
patent: 4614508 (1986-09-01), Kerivan
Gasper John S.
Gilreath Stanley N.
International Business Machines - Corporation
LandOfFree
Pulley for forms feed tractor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pulley for forms feed tractor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulley for forms feed tractor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-846922