US184401A - Improvement in sharpening-machines - Google Patents
Improvement in sharpening-machines Download PDFInfo
- Publication number
- US184401A US184401A US184401DA US184401A US 184401 A US184401 A US 184401A US 184401D A US184401D A US 184401DA US 184401 A US184401 A US 184401A
- Authority
- US
- United States
- Prior art keywords
- wheel
- sharpening
- machines
- improvement
- sickle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000000694 effects Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 210000001699 lower leg Anatomy 0.000 description 4
- 241000837181 Andina Species 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910001651 emery Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- 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
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
- B24B3/42—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades helically bent, e.g. for lawn mowers
Definitions
- Figure l of the drawings is a representation of a side view of my improved sickle-sharpener, and Fig. l2 is a plan view thereof.
- This invention has relation to improvements in devices for sharpening the sickles of mowing and reaping machines 5 and it consists in an equalizing-spring, secured at one end to a bar in which a grinding-wheel and its operative mechanism is mounted, adapted to be placed on the sickle-bar,vand to yield to pressure, thereby allo-wing the stone to be pressed against the sickle-plate with a regular strain, and ina degree proportionate to the effect required, as will be hereinafter more fully explained and claimed.
- the letter A designates a preferably straight wooden or metallic bar, of suitable length, having on one end a shoulder or clutch-piece, a, and mounted in suitable bearings at the other a transverse shaft, b.
- This shaft is provided at one end with a pinion, B, meshing with a drive-wheel, O, rotating freely on a shaft, c, passing through or mounted in bearings on bar A, and extending beyond bar A to form a handle, m, and at the other end with a grinding-wheel, D, hav ing its periphery beveled to lit into the serrations or teeth lof the sickle-sections.
- This grinding-wheel is readily detachable from the shaft, and is capable of being reversed, so that after the teeth of one section have been ground, the saine, when being reversed, may be made to sharpen those of the other.
- Motion is imparted to the grinding-wheel through the medium of pinion B, by the actuation of gear-wheel C, which is operated by means of an arm, d; or, in lieu of pinion B and Wheel C, by means of an endless belt passing over pulleys upon the adjacent ends of shafts b c, in a pos'ition tangential to, or with, the convexity of its curvature toward the Work.
- E represents a metallic spring, preferably of steel, and of curved form, which spring is rigidly secured to the underside of bar A at its end, carrying the grinding-wheel.
- This spring is designed to be set upon or against the sickle-bar,'and the clutch-piecea, having been placed against the left shoulder, the operator, by bearing against the spring E, forces the wheel against the knives, and causes it to be rapidly rotated by turning wheel O.
- the yielding of the spring will be proportionate to the force used by the operator.
- He is consequently enabled to regulate the force with which the said wheel acts, according to the effect desired to be produced on the sickle, and, the yielding ofthe spring being regular, the force thus produced will be equal at all times, thus preventing the wheel from becoming eccentric or uneven from the irregularaction or effect of the sickle thereon.
- grindwheel D will be of emery, with a wood, iron, or hard-rubber core, and will be of small diameter, to secure the proper rapidity of revolution.
- the hand sickle-grinder having the shank A terminating in an eye carrying the common shaft of the grinding-wheel, and pinion B, arranged on opposite sides of said shank, and having secured to its under side the curved feed-spring E, bent in convex form toward or tangent to the work, substantially as specified.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
:.YMARKEL. SHARP'ENING-MACHINE.
Nu.184,401. Patented Nov 14,1a7e.
WlTN ESSES INVENTOR ATTORNEYv UNITED STATES PATENT OFFICE,
JOHN MABKEL, OF MONTIGELLO, ILLINOIS.
IMPROVEMENT IN SHARPENING-MACHINES.
Specification forming part of Letters Patent No. [$4,401. dated November 14, 1876; application filed March 11, 1876.
To all whom it may concern Be it known that I, JOHN `MARKEL, of Monticello, in the county of Piatt and State of Illinois, have invented a new and valuable Improvement in Scythe-Sharpeners; and
I' do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon. l
Figure l of the drawings is a representation of a side view of my improved sickle-sharpener, and Fig. l2 is a plan view thereof.
This invention has relation to improvements in devices for sharpening the sickles of mowing and reaping machines 5 and it consists in an equalizing-spring, secured at one end to a bar in which a grinding-wheel and its operative mechanism is mounted, adapted to be placed on the sickle-bar,vand to yield to pressure, thereby allo-wing the stone to be pressed against the sickle-plate with a regular strain, and ina degree proportionate to the effect required, as will be hereinafter more fully explained and claimed. I In the annexed drawings, the letter A designates a preferably straight wooden or metallic bar, of suitable length, having on one end a shoulder or clutch-piece, a, and mounted in suitable bearings at the other a transverse shaft, b. This shaft is provided at one end with a pinion, B, meshing with a drive-wheel, O, rotating freely on a shaft, c, passing through or mounted in bearings on bar A, and extending beyond bar A to form a handle, m, and at the other end with a grinding-wheel, D, hav ing its periphery beveled to lit into the serrations or teeth lof the sickle-sections. This grinding-wheel is readily detachable from the shaft, and is capable of being reversed, so that after the teeth of one section have been ground, the saine, when being reversed, may be made to sharpen those of the other.
Motion is imparted to the grinding-wheel through the medium of pinion B, by the actuation of gear-wheel C, which is operated by means of an arm, d; or, in lieu of pinion B and Wheel C, by means of an endless belt passing over pulleys upon the adjacent ends of shafts b c, in a pos'ition tangential to, or with, the convexity of its curvature toward the Work.
E represents a metallic spring, preferably of steel, and of curved form, which spring is rigidly secured to the underside of bar A at its end, carrying the grinding-wheel. This spring is designed to be set upon or against the sickle-bar,'and the clutch-piecea, having been placed against the left shoulder, the operator, by bearing against the spring E, forces the wheel against the knives, and causes it to be rapidly rotated by turning wheel O. The yielding of the spring will be proportionate to the force used by the operator. He is consequently enabled to regulate the force with which the said wheel acts, according to the effect desired to be produced on the sickle, and, the yielding ofthe spring being regular, the force thus produced will be equal at all times, thus preventing the wheel from becoming eccentric or uneven from the irregularaction or effect of the sickle thereon.
In practice grindwheel D will be of emery, with a wood, iron, or hard-rubber core, and will be of small diameter, to secure the proper rapidity of revolution.
What I claim as new, and desire to secure by Letters Patent, is-
The hand sickle-grinder, having the shank A terminating in an eye carrying the common shaft of the grinding-wheel, and pinion B, arranged on opposite sides of said shank, and having secured to its under side the curved feed-spring E, bent in convex form toward or tangent to the work, substantially as specified.
In testimony that I claim the above I have hereunto subscribed my namevin the presence of two witnesses.
JOHN MARKEL.
Witnesses: y WILLIAM M. HOLMES, J osEPH P. VAN GUNDY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US184401A true US184401A (en) | 1876-11-14 |
Family
ID=2253806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US184401D Expired - Lifetime US184401A (en) | Improvement in sharpening-machines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US184401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040267690A1 (en) * | 2003-06-26 | 2004-12-30 | International Business Machines Corporation | Integrated development environment with context sensitive database connectivity assistance |
-
0
- US US184401D patent/US184401A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040267690A1 (en) * | 2003-06-26 | 2004-12-30 | International Business Machines Corporation | Integrated development environment with context sensitive database connectivity assistance |
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