GB184015A - Improvements in or relating to dies for making or sharpening rock and coal cutting tools - Google Patents

Improvements in or relating to dies for making or sharpening rock and coal cutting tools

Info

Publication number
GB184015A
GB184015A GB1794821A GB1794821A GB184015A GB 184015 A GB184015 A GB 184015A GB 1794821 A GB1794821 A GB 1794821A GB 1794821 A GB1794821 A GB 1794821A GB 184015 A GB184015 A GB 184015A
Authority
GB
United Kingdom
Prior art keywords
dies
relating
making
cutting tools
coal cutting
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
GB1794821A
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 GB1794821A priority Critical patent/GB184015A/en
Publication of GB184015A publication Critical patent/GB184015A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K5/00—Making tools or tool parts, e.g. pliers
    • B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
    • B21K5/06—Dressing, e.g. sharpening rock drills

Landscapes

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

Abstract

184,015. Heginbotham, R., and Rayner, P. July 1, 1921. Percussive drills.-A coal pick g is made with its point tapered as regard both width and thick. ness and also curved to one side.
GB1794821A 1921-07-01 1921-07-01 Improvements in or relating to dies for making or sharpening rock and coal cutting tools Expired GB184015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1794821A GB184015A (en) 1921-07-01 1921-07-01 Improvements in or relating to dies for making or sharpening rock and coal cutting tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1794821A GB184015A (en) 1921-07-01 1921-07-01 Improvements in or relating to dies for making or sharpening rock and coal cutting tools

Publications (1)

Publication Number Publication Date
GB184015A true GB184015A (en) 1922-08-10

Family

ID=10104033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1794821A Expired GB184015A (en) 1921-07-01 1921-07-01 Improvements in or relating to dies for making or sharpening rock and coal cutting tools

Country Status (1)

Country Link
GB (1) GB184015A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105149493A (en) * 2015-10-28 2015-12-16 董丁法 Die for manufacturing knife edge of hacking knife

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105149493A (en) * 2015-10-28 2015-12-16 董丁法 Die for manufacturing knife edge of hacking knife

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