US233182A - Machine for grinding mower and reaper knives - Google Patents

Machine for grinding mower and reaper knives Download PDF

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Publication number
US233182A
US233182A US233182DA US233182A US 233182 A US233182 A US 233182A US 233182D A US233182D A US 233182DA US 233182 A US233182 A US 233182A
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machine
bar
grinding
carrier
reaper
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/55—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of knife bars for harvesting machines

Definitions

  • My invention consists in a novel construction of a rest and carrier for the sickle-bar and combination and arrangement thereof with relation to the grindstone, whereby provision is made for adjusting the sickle-bar to the grinding-surface, as hereinafter described.
  • Figure 1 is an elevation, partly in section, of an apparatus embodying my improvements.
  • Fig. 2 is a top view.
  • Figs. 3 and 4 are detail views.
  • A represents the frame or table which supports the working parts.
  • B is a standard, in the upper part of which is journaled ahorizontal shaft, C, carrying at one end a grindstone, D, and provided at the other end with a crank, e, for turning it.
  • F is a flat bar, one end of which is pivoted to the table A.
  • the other end of the bar F is provided with a slot, f.
  • This slot f works the headed shank g of a standard, G, which (ModeL) forms a rest for the sickle-bar carrier.
  • This carrier consists of a bar, H, connected to the standard G by a jointed shank, h. provided with a thumb-screw, J.
  • the carrier H is provided with clamps K, furnished with set-screws L for holding the sicklebar M in place.
  • the clamps K are arranged to slide on the bar H so as to accommodate sickles of difi'erent lengths, and they are provided with keys or wedges n for tightening them in place on the carrier.
  • the carrier H may be moved up to or away from the grindstone,or turned in any suitable position at the pleasure of the operator.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Harvester Elements (AREA)

Description

Model.)
0. ASKEW. Machine for Grinding Mower and Reaper Knives.
No. 233,182. Patented Oct. 12, 1880.
,PEfF-RS. PNOTO-LITHOGRAFHER. WASHINGTON. D C.
UNITED STATES PATENT OFFICE.
CHARLES ASKEW, OF MADISON, WISCONSIN.
MACHINE FOR GRINDING MOWER AND REAPER KNIVES.
SPECIFICATION forming part of Letters Patent No. 233,182, dated October 12, 1880.
Application filed J one 11, 1880.
To all whom it may concern:
Be it known that I, CHARLES ASKEW, of Madison, in the county of Dane and State of Wisconsin, have invented a new and useful Improvement in Machines for Grinding Sickle- Bars of Reapers and Mowers, of which the following is a specification.
My invention consists in a novel construction of a rest and carrier for the sickle-bar and combination and arrangement thereof with relation to the grindstone, whereby provision is made for adjusting the sickle-bar to the grinding-surface, as hereinafter described.
In the accompanying drawings, Figure 1 is an elevation, partly in section, of an apparatus embodying my improvements. Fig. 2 is a top view. Figs. 3 and 4 are detail views.
Similar letters of reference indicate corresponding parts.
A represents the frame or table which supports the working parts. B is a standard, in the upper part of which is journaled ahorizontal shaft, C, carrying at one end a grindstone, D, and provided at the other end with a crank, e, for turning it.
F is a flat bar, one end of which is pivoted to the table A. The other end of the bar F is provided with a slot, f. In this slot f works the headed shank g of a standard, G, which (ModeL) forms a rest for the sickle-bar carrier. This carrier consists of a bar, H, connected to the standard G by a jointed shank, h. provided with a thumb-screw, J.
The carrier H is provided with clamps K, furnished with set-screws L for holding the sicklebar M in place. The clamps K are arranged to slide on the bar H so as to accommodate sickles of difi'erent lengths, and they are provided with keys or wedges n for tightening them in place on the carrier.
By means of the jointed shank h and the slot in the bar F the carrier H may be moved up to or away from the grindstone,or turned in any suitable position at the pleasure of the operator.
Having thus described my invention, I claim as new and desire to secure by Letters Patent The combination and arrangement, with relation to the table A and grindstone- D, ofthe pivoted slotted bar F, standard G, jointed shank h, and carrier H, as herein shown and described.
CHARLES ASKEW.
Witnesses:
THOMAS ASKEW, M. T. BAILEY.
US233182D Machine for grinding mower and reaper knives Expired - Lifetime US233182A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050144783A1 (en) * 2003-12-29 2005-07-07 Wai-Wah Yiu Shearing device including ridges

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050144783A1 (en) * 2003-12-29 2005-07-07 Wai-Wah Yiu Shearing device including ridges

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