Advancing material of indeterminate length – Means to engage longitudinally spaced modifications in material – Pins on flexible belt or chain
Patent
1977-10-31
1978-12-19
Schacher, Richard A.
Advancing material of indeterminate length
Means to engage longitudinally spaced modifications in material
Pins on flexible belt or chain
74231C, B65H 1734
Patent
active
041302303
ABSTRACT:
A drive tractor of the type usually mounted in pairs at opposite edges of a web of edge-perforated sheet material such as printout paper has an endless drive belt mounted on a chassis. The drive belt has pin members projecting from it to engage edge perforations in the web and is engaged with a drive wheel having sprocket teeth which engage a drive formation on the inner surface of the belt. The sprocket wheel is engaged by a drive shaft to be driven thereby. The sprocket teeth and belt tread are respectively configured to mesh only in a predetermined relative position of the pin members relative to the rotational position of the drive wheel. The drive wheel is configured to seat on the drive shaft in a predetermined rotational orientation. Therefore, when a pair of such tractors is mounted on a common drive shaft their respective drive wheels are in the same rotational orientation which automatically transversely aligns the respective pin members of the paired tractors.
REFERENCES:
patent: 2633354 (1953-03-01), Mixer
patent: 3404576 (1968-10-01), Cicognani
patent: 3930601 (1976-01-01), Masuda
Data Motion Incorporated
Schacher Richard A,.
LandOfFree
Sheet 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 Sheet feed tractor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet feed tractor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2370728