GB435259A - Improvements in or relating to rock drills and like percussive tools - Google Patents

Improvements in or relating to rock drills and like percussive tools

Info

Publication number
GB435259A
GB435259A GB699934A GB699934A GB435259A GB 435259 A GB435259 A GB 435259A GB 699934 A GB699934 A GB 699934A GB 699934 A GB699934 A GB 699934A GB 435259 A GB435259 A GB 435259A
Authority
GB
United Kingdom
Prior art keywords
relating
rock drills
camborne
piston
percussive 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
GB699934A
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.)
Holman Brothers Ltd
Original Assignee
Holman Brothers 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 Holman Brothers Ltd filed Critical Holman Brothers Ltd
Priority to GB699934A priority Critical patent/GB435259A/en
Publication of GB435259A publication Critical patent/GB435259A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)

Abstract

435,259. Rock drills. COCK, B., Woodbine, Camborne, and HOLMAN BROS., Ltd., Camborne, Cornwall. March 5, 1934, No. 6999. [Class 124] The tool chuck or chuck sleeve 12 of a rock drill carries a member 13 the inner surface of which bears flutes 14 to engage the corresponding projections on the piston. The member 13 is attached to the part 12 by a screw thread having a tapering external diameter. In a modification the fluted member having the external tapering thread is secured in the piston.
GB699934A 1934-03-05 1934-03-05 Improvements in or relating to rock drills and like percussive tools Expired GB435259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB699934A GB435259A (en) 1934-03-05 1934-03-05 Improvements in or relating to rock drills and like percussive tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB699934A GB435259A (en) 1934-03-05 1934-03-05 Improvements in or relating to rock drills and like percussive tools

Publications (1)

Publication Number Publication Date
GB435259A true GB435259A (en) 1935-09-05

Family

ID=9824688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB699934A Expired GB435259A (en) 1934-03-05 1934-03-05 Improvements in or relating to rock drills and like percussive tools

Country Status (1)

Country Link
GB (1) GB435259A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175850A (en) * 1961-06-08 1965-03-30 Myron E Steczynski Wide angle thread and method of forming same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175850A (en) * 1961-06-08 1965-03-30 Myron E Steczynski Wide angle thread and method of forming same

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