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US88414A - Improvement in trench-plow - Google Patents

Improvement in trench-plow Download PDF

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Publication number
US88414A
US88414A US88414DA US88414A US 88414 A US88414 A US 88414A US 88414D A US88414D A US 88414DA US 88414 A US88414 A US 88414A
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United States
Prior art keywords
plow
trench
improvement
furrow
robinson
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Expired - Lifetime
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B13/00Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation
    • A01B13/14Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation for working soil in two or more layers

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Medicines Containing Plant Substances (AREA)

Description

@@tui my v f. e. mi' ,tntea' ttuttttitte. W
were
muy
JOHN G. ROBINSON, OF
Letters' PatentNo. 88,414, dated March 30, 1869; autedctted March 22, i869.
SPRTNGFI'ELD, ILLINOIS.
IMPROVEMENT IN' TRENCH-PLOW.
l Q-@Ohm The Schedule referred to in these Lettera Patent and making part of the same.
the purpose of cutting the furrow-slice for the trenchplow V.
What I claim as my invention, and desire to secure by Letters Patent, is
The attaching this stationary coulter to the heel of the sod-plow, extended downward and sloping hackward, for cutting the furrow-slice of the trench-plow, in the manner described.
-Witnesses GEO. O. MARCY, J. H. GHENY.
JOHN G. ROBINSON.
US88414D Improvement in trench-plow Expired - Lifetime US88414A (en)

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US88414A true US88414A (en) 1869-03-30

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US88414D Expired - Lifetime US88414A (en) Improvement in trench-plow

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