US1739336A - Knife-head holder - Google Patents

Knife-head holder Download PDF

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Publication number
US1739336A
US1739336A US290453A US29045328A US1739336A US 1739336 A US1739336 A US 1739336A US 290453 A US290453 A US 290453A US 29045328 A US29045328 A US 29045328A US 1739336 A US1739336 A US 1739336A
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United States
Prior art keywords
knife
knife head
guard
yoke
head holder
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Expired - Lifetime
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US290453A
Inventor
George E Vanderhoof
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Individual
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Individual
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Priority to US290453A priority Critical patent/US1739336A/en
Application granted granted Critical
Publication of US1739336A publication Critical patent/US1739336A/en
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Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
    • A01D34/13—Cutting apparatus
    • A01D34/14—Knife-bars
    • A01D34/145—Devices for connecting the knife-bars to the driving mechanism

Definitions

  • the object of the invention is to provide a device for application to the knife head of a sickle on a mower, grain binder, header, or other machine provided with a sickle, so as to effectively prevent the knife head leaving its place between the knife head guide and knife guard in the event of wear which very quickly follows the use of such a machine when used on sandy ground; and to provide a simple device which may be readily applied to the mowing or cutting elements of a conventional machine without any modification of the structure thereof, the device being of simple form and therefore susceptible of cheap manufacture and low marketing cost.
  • * igure 2 is a sectional view on the plane innicated by the line 22 of Figure 1.
  • Figure 3 is a side elevational view of the knife edge.
  • the invention consists of a yoke 1 disposed in spanning relation to the knife head 2 with which the pitman 3 operating the knife head is pivotally connected, the knife head being carried on the sickle l for the operation of the latter when the pitman is reciprocated.
  • the yoke is of arcuate form and made preferably of fiat metal, the curved portion 5 being disposed at right angles to the terminal portions 6 and 7
  • the yoke is secured in place by the bolts 8, 9 and 10, these bolts serving not only to hold the yoke but to hold the knife head guide 11 and knife guard 12 in place, replacing the bolts originally used for this purpose.
  • the under edge of the curved portion of the yoke serves to prevent the knife head raising and thus leaving its position between the knife head guide and knife guard and thus prevents many broken sickles with the consequent delay in making repairs. Being of such extremely simple form, it may be manufactured at small expense and applied with practically no difficulty.
  • the guard be- Serial No. 290,453.
  • a sickle element of an agricultural machine having a knife head and knife head guide and knife guard between which the knife head moves, a guard yoke having a curved or arcuate portion spanning the knife head and terminals disposed respectively upon the knife head guide and knife guard, and bolts extending through the terminals of the guard yoke and through the knife head guide and knife guard respectively and retaining said parts in position, said guard yoke being formed of flat metal twisted to dispose the curved or arcuate portion at substantially right angles to the terminal portions.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Description

1929. e. VANDERHOOF 1 ,739,336
- KNIFE HEAD HOLDER Filed July 5. 1928 V ////A I INVENT ,3 1 V nck'rhoof A TTORNE Y.
l atented Dec. 10, 1929 UNITED STATES GEORGE E. VANDERHOOF, OF KARVAL, COLORADO KNIFE-HEAD HOLDER Application filed. July 5, 1928.
The object of the invention is to provide a device for application to the knife head of a sickle on a mower, grain binder, header, or other machine provided with a sickle, so as to effectively prevent the knife head leaving its place between the knife head guide and knife guard in the event of wear which very quickly follows the use of such a machine when used on sandy ground; and to provide a simple device which may be readily applied to the mowing or cutting elements of a conventional machine without any modification of the structure thereof, the device being of simple form and therefore susceptible of cheap manufacture and low marketing cost.
lVith this object in view, the invention consists in a construction and combination of parts of which a preferred embodiment is illustrated in the accompanying drawings wherein Figure 1 is aplan view of that portion of a mowing machine with which the invention is directly associated.
* igure 2 is a sectional view on the plane innicated by the line 22 of Figure 1.
Figure 3 is a side elevational view of the knife edge.
The invention consists of a yoke 1 disposed in spanning relation to the knife head 2 with which the pitman 3 operating the knife head is pivotally connected, the knife head being carried on the sickle l for the operation of the latter when the pitman is reciprocated.
The yoke is of arcuate form and made preferably of fiat metal, the curved portion 5 being disposed at right angles to the terminal portions 6 and 7 The yoke is secured in place by the bolts 8, 9 and 10, these bolts serving not only to hold the yoke but to hold the knife head guide 11 and knife guard 12 in place, replacing the bolts originally used for this purpose. The under edge of the curved portion of the yoke serves to prevent the knife head raising and thus leaving its position between the knife head guide and knife guard and thus prevents many broken sickles with the consequent delay in making repairs. Being of such extremely simple form, it may be manufactured at small expense and applied with practically no difficulty. The guard be- Serial No. 290,453.
ing disposed so that the curved portion is directed away from the end of the pitman, interference between the latter and the guard is prevented.
The invention having been described, what is claimed as new and useful is:
In combination with a sickle element of an agricultural machine, the same having a knife head and knife head guide and knife guard between which the knife head moves, a guard yoke having a curved or arcuate portion spanning the knife head and terminals disposed respectively upon the knife head guide and knife guard, and bolts extending through the terminals of the guard yoke and through the knife head guide and knife guard respectively and retaining said parts in position, said guard yoke being formed of flat metal twisted to dispose the curved or arcuate portion at substantially right angles to the terminal portions.
In test mony whereof he aflixes his signature.
GEORGE E. VANDERHOOF.
US290453A 1928-07-05 1928-07-05 Knife-head holder Expired - Lifetime US1739336A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US290453A US1739336A (en) 1928-07-05 1928-07-05 Knife-head holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US290453A US1739336A (en) 1928-07-05 1928-07-05 Knife-head holder

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US1739336A true US1739336A (en) 1929-12-10

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US290453A Expired - Lifetime US1739336A (en) 1928-07-05 1928-07-05 Knife-head holder

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521281A (en) * 1946-12-03 1950-09-05 Better Seats Co Auxiliary raisable chair seat

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521281A (en) * 1946-12-03 1950-09-05 Better Seats Co Auxiliary raisable chair seat

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