GB286875A - An improved percussion boring tool - Google Patents

An improved percussion boring tool

Info

Publication number
GB286875A
GB286875A GB598627A GB598627A GB286875A GB 286875 A GB286875 A GB 286875A GB 598627 A GB598627 A GB 598627A GB 598627 A GB598627 A GB 598627A GB 286875 A GB286875 A GB 286875A
Authority
GB
United Kingdom
Prior art keywords
boring tool
percussion boring
improved percussion
tapered
improved
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
GB598627A
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.)
Rawlplug Co Ltd
Original Assignee
Rawlplug Co 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 Rawlplug Co Ltd filed Critical Rawlplug Co Ltd
Priority to GB598627A priority Critical patent/GB286875A/en
Publication of GB286875A publication Critical patent/GB286875A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D3/00—Hand chisels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/211—Cross-sections of the tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

286,875. Rawlings, J. J., and Rawlplug Go., Ltd. March 3, 1927. Percussive drills.-A tool for boring holes in stone, plaster and the like comprises a shank with a tapered end 2 for inserting in a holder, and three or more tapered grooves, widest and deepest at the cutting end. The taper of the grooves extends along part of their length 3a, the remainder being parallel.
GB598627A 1927-03-03 1927-03-03 An improved percussion boring tool Expired GB286875A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB598627A GB286875A (en) 1927-03-03 1927-03-03 An improved percussion boring tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB598627A GB286875A (en) 1927-03-03 1927-03-03 An improved percussion boring tool

Publications (1)

Publication Number Publication Date
GB286875A true GB286875A (en) 1928-03-15

Family

ID=9806311

Family Applications (1)

Application Number Title Priority Date Filing Date
GB598627A Expired GB286875A (en) 1927-03-03 1927-03-03 An improved percussion boring tool

Country Status (1)

Country Link
GB (1) GB286875A (en)

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