US128326A - Improvement in cutting apparatus for harvesters - Google Patents

Improvement in cutting apparatus for harvesters Download PDF

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Publication number
US128326A
US128326A US128326DA US128326A US 128326 A US128326 A US 128326A US 128326D A US128326D A US 128326DA US 128326 A US128326 A US 128326A
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Prior art keywords
improvement
harvesters
bar
cutting apparatus
finger
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D34/00Mowers; Mowing apparatus of harvesters
    • A01D34/01Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/02Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
    • A01D34/13Cutting apparatus
    • A01D34/18Guard fingers; Ledger-plates

Definitions

  • Figure 1 represents a top view, partly in section, of my improved finger-bar.
  • Fig. 2 is a vertical transverse section of the same.
  • Each finger is made of platesteel, and can be cut out at one operation, requiring afterward but a little further manipulation than the turning on of a screw-thread at the rear end for the reception of a nut, b.
  • the slope on the face of the finger-bar serves in part to preventlongitudinal displacement of the finger, and to take some strain off the nut b, which bears against the flange a,-the latter being notched or perforated for the reception of the threaded parts of the fingers.
  • the bar A is notched to admit beveledged downward projections d of the fingers. These projections keep the fingers down on the bar, and prevent their backward displacement.
  • the fingers are placed in such proximity to each other on the fin ger-bar that there will be two or three or more for every V-knife of the cutter-bar. This arrangement facilitates the operation of the knives.

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

Description

c. 0. READ.
improvement in Cfltting Apparatus for Harvesters N0.1 28,326. Patentedlune 25,1872.
Witmsts: 311mm:
UNITED STATES PATENT QFFIGE CALVIN D. READ, OF AYER, MASSACHUSETTS.
IMPROVEMENT IN CUTTING APPARATUS FOR HARVESII'ERS.
Specification forming part of Letters Patent No: 128,326, dated June 25, 1872.
Specification describing a new and Improved Harvester Finger-Bar and Finger, invented by CALVIN D. READ, of Ayer, in the county of Middlesex and State of Massachusetts.
Figure 1 represents a top view, partly in section, of my improved finger-bar. Fig. 2 is a vertical transverse section of the same.
Similar letters of reference indicate correspondin g parts.
- and with an upwardly-projecting flange, a, at
the back edge. Each finger is made of platesteel, and can be cut out at one operation, requiring afterward but a little further manipulation than the turning on of a screw-thread at the rear end for the reception of a nut, b. The slope on the face of the finger-bar serves in part to preventlongitudinal displacement of the finger, and to take some strain off the nut b, which bears against the flange a,-the latter being notched or perforated for the reception of the threaded parts of the fingers. In front the bar A is notched to admit beveledged downward projections d of the fingers. These projections keep the fingers down on the bar, and prevent their backward displacement. The fingers are placed in such proximity to each other on the fin ger-bar that there will be two or three or more for every V-knife of the cutter-bar. This arrangement facilitates the operation of the knives.
Having thus described my invention, I claim as new and desire to secure by Letters Patent The combination of the fingers B, provided with downward projections 11 and threaded rear ends, with the finger-bar A, notched at its front edge, and having the perforated flange a, as shown and described.
CALVIN D. READ.
Witnesses:
J OSIAH F. STEVENS, JOSIAH K. BENNETT.
US128326D Improvement in cutting apparatus for harvesters Expired - Lifetime US128326A (en)

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US128326A true US128326A (en) 1872-06-25

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