GB622707A - Dart sharpener or contrivance for sharpening a cylindrical tapering blade and producing a fine point - Google Patents

Dart sharpener or contrivance for sharpening a cylindrical tapering blade and producing a fine point

Info

Publication number
GB622707A
GB622707A GB521947A GB521947A GB622707A GB 622707 A GB622707 A GB 622707A GB 521947 A GB521947 A GB 521947A GB 521947 A GB521947 A GB 521947A GB 622707 A GB622707 A GB 622707A
Authority
GB
United Kingdom
Prior art keywords
sharpening
contrivance
producing
fine point
cylindrical
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
Application number
GB521947A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB521947A priority Critical patent/GB622707A/en
Publication of GB622707A publication Critical patent/GB622707A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D15/00—Hand tools or other devices for non-rotary grinding, polishing, or stropping
    • B24D15/02—Hand tools or other devices for non-rotary grinding, polishing, or stropping rigid; with rigidly-supported operative surface

Landscapes

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

Abstract

622,707. Grindstone block for sharpening darts &c. MICHAEL, A. Feb. 21, 1947, No. 5219. Drawings to Specification. [Class 60] A device for sharpening the points of darts or other cylindrical blades comprising a piece of grindstone of rectangular cross-section formed throughout its length with a cylindrical hole, around the wall of which the point to be sharpened is rotated while being held in the hand.
GB521947A 1947-02-21 1947-02-21 Dart sharpener or contrivance for sharpening a cylindrical tapering blade and producing a fine point Expired GB622707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB521947A GB622707A (en) 1947-02-21 1947-02-21 Dart sharpener or contrivance for sharpening a cylindrical tapering blade and producing a fine point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB521947A GB622707A (en) 1947-02-21 1947-02-21 Dart sharpener or contrivance for sharpening a cylindrical tapering blade and producing a fine point

Publications (1)

Publication Number Publication Date
GB622707A true GB622707A (en) 1949-05-05

Family

ID=9791943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB521947A Expired GB622707A (en) 1947-02-21 1947-02-21 Dart sharpener or contrivance for sharpening a cylindrical tapering blade and producing a fine point

Country Status (1)

Country Link
GB (1) GB622707A (en)

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