GB143786A - Improvements in forging and sharpening appliances for rock and coal cutting tools - Google Patents

Improvements in forging and sharpening appliances for rock and coal cutting tools

Info

Publication number
GB143786A
GB143786A GB2575719A GB2575719A GB143786A GB 143786 A GB143786 A GB 143786A GB 2575719 A GB2575719 A GB 2575719A GB 2575719 A GB2575719 A GB 2575719A GB 143786 A GB143786 A GB 143786A
Authority
GB
United Kingdom
Prior art keywords
forging
sharpening
rock
appliances
cutting tools
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
GB2575719A
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 GB2575719A priority Critical patent/GB143786A/en
Publication of GB143786A publication Critical patent/GB143786A/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)
  • Forging (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

143,786. Heginbotham, R. Oct. 21, 1919. Forging-dies.-Dies for sharpening rock and coal cutters and like tools are formed with a recess, which tapers inwardly and downwardly, to act on one prong at a time. One die a is fixed by its shank a', and the other b slides in grooves therein and is struck at b<1> by a pneumatic hammer or other power appliance.
GB2575719A 1919-10-21 1919-10-21 Improvements in forging and sharpening appliances for rock and coal cutting tools Expired GB143786A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2575719A GB143786A (en) 1919-10-21 1919-10-21 Improvements in forging and sharpening appliances for rock and coal cutting tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2575719A GB143786A (en) 1919-10-21 1919-10-21 Improvements in forging and sharpening appliances for rock and coal cutting tools

Publications (1)

Publication Number Publication Date
GB143786A true GB143786A (en) 1920-06-03

Family

ID=10232805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2575719A Expired GB143786A (en) 1919-10-21 1919-10-21 Improvements in forging and sharpening appliances for rock and coal cutting tools

Country Status (1)

Country Link
GB (1) GB143786A (en)

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