US19191A - Making blades for pencil-sharpeners - Google Patents

Making blades for pencil-sharpeners Download PDF

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Publication number
US19191A
US19191A US19191DA US19191A US 19191 A US19191 A US 19191A US 19191D A US19191D A US 19191DA US 19191 A US19191 A US 19191A
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US
United States
Prior art keywords
sharpeners
pencil
blank
recess
blanks
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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
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English (en)
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Publication of US19191A publication Critical patent/US19191A/en
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Expired - Lifetime legal-status Critical Current

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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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35—Accessories
    • B24B5/355—Feeding means

Definitions

  • Fig. 5 denotes a longitudinal section of the blank holder charged with a series of knife blanks, each of which is rectangular in its transverse section.
  • I take a plate of metal A, and forln in its upper surface one or more series of recesses, a, a, a, those of each series being arranged parallel to each other or in such other manner as circumstances may require.
  • Each recess a is constructed triangular in cross section and arranged with respect to the top surface of the plate as shown in Figs. 4, and 5. It is intended to receive a knife blank, which on being laid therein by resting againstthe two sides of the recess will take an inclined position with respect to the top surface of the bed or holder.
  • This holder' so made is to be used under a grinding stone or grinder, which should be made to revolve in such a direction while it is operating against a knife blank, that such knife blank shall be forced by the friction of the grinder against the vertical side of the knife recess, such Vertical or shorter side serving as a stop to prevent the knife blank from being thrown out of the recess by the grinding wheel.
  • the longer or inclined side of the recess operates as a gage to so hold the blank and direct it properly while it is under the operation of the grinder that the said blank may be reduced to a wedge form or have a triangular shape in transverse section.
  • lVhat I claim for supporting small pieces of metal and aiding in their reduction to wedges or knive blades under the action of a grinder or grinding wheel is- A gage bed plate or holder constructed with recesses made so as to operate substantially described such bed being moved along' under the grinder or the grinder moved over it in such nianner as to successively reduce each of the blanks that may be within its recess.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
US19191D Making blades for pencil-sharpeners Expired - Lifetime US19191A (en)

Publications (1)

Publication Number Publication Date
US19191A true US19191A (en) 1858-01-26

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ID=2083116

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US19191D Expired - Lifetime US19191A (en) Making blades for pencil-sharpeners

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