US75411A - John grant - Google Patents

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US75411A
US75411A US75411DA US75411A US 75411 A US75411 A US 75411A US 75411D A US75411D A US 75411DA US 75411 A US75411 A US 75411A
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wheel
knives
spindle
emery
john grant
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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
    • B24B3/36—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

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  • Figure 2 a plan view
  • Figure 3 a vertical section of my invention.
  • This invention is a device by which planer-knives may be sharpened easily, and with regularity of bevel.
  • It consists of a frame, A A, having a shaft, B, set in bearings a a upon each side of the frame. Up'on this shaft B is a block, C, upon which the knives are set, so that their edges may be brought in contact with an emery-.vheel,D.
  • This emery-wheel is arranged upon a spindle,' F, so that the latter, in turning, turns the wheel with it. Yet the wheel can be moved laterally along the spindle without interrupting the revolution of either. This is accomplished by means of a groove, Zz, running the length of the spindle in its surface, into which tits a pin set in the shoulder of the emery-Wheel.
  • the device for moving the emery-wheel laterally consists of a piece, G, which straddles the wheel, the spindle F passing through its ends c c, while the other end, d, has threads out through it, in which works a screw, H, working in bearings e e in the sides of the frameA A. Upon the continued end of this screw is placed-a crank, so that, lby turning the latter, ⁇ the emery-wheel is moved in either direction, as may be desired, along the edge ofthe knife-blade.
  • a pulley, I upon one end of the spindle F, allows power to be applied.
  • the advantages of this device are that the knives may be easily ground, and'pertcctly regularted, with far less work than by hand, and without necessitating the removal of the knives from the planer.
  • a device for sharpening the knives of planers-and similar tools consisting nf the screw H, piece G, wheel D, and ground spindle F, the parts and the whole being constructed and arranged substantially as shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Crushing And Pulverization Processes (AREA)

Description

@uiten taies. gat-mt ffirr.4
Letters Patent No. 75,411, dated March 10, 1868.
IMPROVEMENT IN GRINDER FOR KNIVES FOR PLANERS.
@the Segnale :stemt in in tigen Titten @anni submitting pitt nt tigt smite.
,TO ALL WHOM IT MAY CONOERN:
Be it known that I, JOHN GRANT, of Northampton, Hampshire county, Commonwealth of Massachusetts, have invented a new and useful improved Planer-Knife Grinder; and I do herebydeclare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon. In the drawings- Y Figure 1 represents a front view.
Figure 2 a plan view, and
Figure 3 a vertical section of my invention.
This invention is a device by which planer-knives may be sharpened easily, and with regularity of bevel.
It consists of a frame, A A, having a shaft, B, set in bearings a a upon each side of the frame. Up'on this shaft B is a block, C, upon which the knives are set, so that their edges may be brought in contact with an emery-.vheel,D. This emery-wheel is arranged upon a spindle,' F, so that the latter, in turning, turns the wheel with it. Yet the wheel can be moved laterally along the spindle without interrupting the revolution of either. This is accomplished by means of a groove, Zz, running the length of the spindle in its surface, into which tits a pin set in the shoulder of the emery-Wheel.
The device for moving the emery-wheel laterally, consists of a piece, G, which straddles the wheel, the spindle F passing through its ends c c, while the other end, d, has threads out through it, in which works a screw, H, working in bearings e e in the sides of the frameA A. Upon the continued end of this screw is placed-a crank, so that, lby turning the latter,` the emery-wheel is moved in either direction, as may be desired, along the edge ofthe knife-blade. A pulley, I, upon one end of the spindle F, allows power to be applied. I
The advantages of this device are that the knives may be easily ground, and'pertcctly regularted, with far less work than by hand, and without necessitating the removal of the knives from the planer.
Now, having described my invention, what claim as new, and desire to secure by Letters Patent, is-
A device for sharpening the knives of planers-and similar tools, consisting nf the screw H, piece G, wheel D, and ground spindle F, the parts and the whole being constructed and arranged substantially as shown.
JOHN GRANT.
Witnesses:
EDWARD H. HYDE, It. F. HYDE.
US75411D John grant Expired - Lifetime US75411A (en)

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