Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1990-12-10
1992-11-24
Stodola, Daniel P.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 672, 172 20, A01B 4504, B65H 1800, B65H 1808
Patent
active
051656175
ABSTRACT:
A method and apparatus for rolling-up one or more rolls of sod wherein the sod is conveyed on a conveyor against a blocking mechanism which include tooth like elements which extend between the belts of the conveyor. The blocking mechanism blocks the progress of the sod's leading edge causing it to begin to curl. After curling up the leading edge presses the teeth of the blocking mechanism upward to a point which allows the curled up leading portion to be conveyed past the blocking mechanism. Frictional elements grip the curled up portion of the sod to cause continued rolling up of the sod. The blocking mechanism is provided with a drag end for pressing against the following portions of the sod.
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patent: 3464641 (1969-09-01), Brouwer
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patent: 3790096 (1974-02-01), Brouwer
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patent: 4765554 (1988-08-01), Tuffal et al.
patent: 4892152 (1990-01-01), van Vuuren
Mansen Michael R.
Stodola Daniel P.
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