GB661824A - Improvements in and relating to files or rasps - Google Patents

Improvements in and relating to files or rasps

Info

Publication number
GB661824A
GB661824A GB2142149A GB2142149A GB661824A GB 661824 A GB661824 A GB 661824A GB 2142149 A GB2142149 A GB 2142149A GB 2142149 A GB2142149 A GB 2142149A GB 661824 A GB661824 A GB 661824A
Authority
GB
United Kingdom
Prior art keywords
teeth
hard
rasps
files
file
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
GB2142149A
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.)
ABRASIVE TOOLS Ltd
Original Assignee
ABRASIVE TOOLS Ltd
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 ABRASIVE TOOLS Ltd filed Critical ABRASIVE TOOLS Ltd
Priority to GB2142149A priority Critical patent/GB661824A/en
Publication of GB661824A publication Critical patent/GB661824A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D71/00—Filing or rasping tools; Securing arrangements therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

661,824. Files and rasps. ABRASIVE TOOLS, Ltd., PERESS, J. S., and WOLSEY, W. Jan. 4, 1950 [Aug. 17, 1949], No. 21421/49. Class 61 (ii). A blank of relatively soft steel or the like having file or rasp teeth on its outer surface is case hardened by any suitable method to form a coating of hard metal over the outer surface of the teeth. The teeth 3 of a file have a hard outer casing 2 and a softer core which becomes exposed when the tips 4 become worn with use. With continued use the core is worn away more quickly than the hard broken edges which lie proud and serve as new cutting edges.
GB2142149A 1949-08-17 1949-08-17 Improvements in and relating to files or rasps Expired GB661824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2142149A GB661824A (en) 1949-08-17 1949-08-17 Improvements in and relating to files or rasps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2142149A GB661824A (en) 1949-08-17 1949-08-17 Improvements in and relating to files or rasps

Publications (1)

Publication Number Publication Date
GB661824A true GB661824A (en) 1951-11-28

Family

ID=10162659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2142149A Expired GB661824A (en) 1949-08-17 1949-08-17 Improvements in and relating to files or rasps

Country Status (1)

Country Link
GB (1) GB661824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531840A (en) * 1967-11-16 1970-10-06 Omark Industries Inc Durable file

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3531840A (en) * 1967-11-16 1970-10-06 Omark Industries Inc Durable file

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