USRE291E - Improvement in cutter-fingers of harvesters - Google Patents
Improvement in cutter-fingers of harvesters Download PDFInfo
- Publication number
- USRE291E USRE291E US RE291 E USRE291 E US RE291E
- Authority
- US
- United States
- Prior art keywords
- finger
- cutter
- fingers
- improvement
- harvesters
- Prior art date
Links
- 241001124569 Lycaenidae Species 0.000 title description 4
- 240000000218 Cannabis sativa Species 0.000 description 12
- 235000014716 Eleusine indica Nutrition 0.000 description 8
- 210000001699 lower leg Anatomy 0.000 description 6
- 241000756258 Aristida stricta Species 0.000 description 4
- 240000006656 Eleusine indica Species 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 230000001154 acute Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
Images
Definitions
- FIG. 2 is a view in perspective of the upper side ofthe under halt' of the iinger detached.
- Fig. 3 is a similar view of the under side of the upper half of' the finger.
- Fig. 4 is a side elevation of' the finger and a section through the finger-bar, and
- Fig. 5 is a transverse section of' the finger at the line oc .fr of Fig. et.
- Each finger as represented in the drawings, consists of two distinct parts, but may be made in one piece. rlhe lower part, A, is made the strongest and supports the upper part, B. rlhe finger-bar C and the front and rear ex'- tremities of the fingers may be made in any convenient manner, as my improvements relate to that part of the linger through which the cutter plays and those parts immediately adjacent thereto. I shall therefore conne my description principally to those points i'n which the improvements are made.
- the first of' these improvements consists in narrowing the finger just in front of the finger bar, where the stock of' the knife plays, by a recess, o, on either side. rllhe upper corners of the recess in the lower half of the linger are chamfered or beveled off, as shown at d, leaving a ridge, e, in the lniddle, so that, except at the middle of the finger, any ber, grass, gte., that may be drawn under the knife will drop down on either side, leaving the bearing on the middle so narrow that the grass will be cut off' or detached by the motion of the sickle-stock, and thus it will be impossible for wire-grass to accumulate, as it does in this part cf fingers of other constructions.
- the under side of the shankf of the upper part, B, of' the finger immediately over the part of' the lower tingerjust described may be made of corresponding shape.
- the upper part of the finger has the general form of an openisosceles triangle, with a shank, f, projecting outward fromthe middle of' the base, the part of the inside of the triangle adjacent to the apex being filled or solid.
- the part of the lower halt of the finger corresponding to the triangle of the upper part is also of triangular shape, but the triangle is more acute.
Family
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