GB277422A - Improvements in handles for percussion drills, jumpers or the like - Google Patents

Improvements in handles for percussion drills, jumpers or the like

Info

Publication number
GB277422A
GB277422A GB1508826A GB1508826A GB277422A GB 277422 A GB277422 A GB 277422A GB 1508826 A GB1508826 A GB 1508826A GB 1508826 A GB1508826 A GB 1508826A GB 277422 A GB277422 A GB 277422A
Authority
GB
United Kingdom
Prior art keywords
tool
cotter
flat
hole
drill
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
GB1508826A
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 GB1508826A priority Critical patent/GB277422A/en
Publication of GB277422A publication Critical patent/GB277422A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

277,422. Rawlings, J. J., and Rawlplug Co., Ltd. June 15, 1926. Addition to 271,953. Key wedges for socket fixings.- The drill, chisel, jumper &c. handle or holder a of the parent Specification, in which the tool c is secured in the axial hole b by a taper cotter d passing through an oblique hole e in the holder so as to engage a flat f on the tools, and having its smaller end directed upwardly away from the cutting end of the drill, is formed with a flat-transverse surface at the inner end of the hole b acting as an abutment to the correspondingly formed end of the tool c. A suitable angle between the axes of the tool and cotter is 75‹ and the cotter may have a tapered flat inclined about 3‹.
GB1508826A 1926-06-15 1926-06-15 Improvements in handles for percussion drills, jumpers or the like Expired GB277422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1508826A GB277422A (en) 1926-06-15 1926-06-15 Improvements in handles for percussion drills, jumpers or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1508826A GB277422A (en) 1926-06-15 1926-06-15 Improvements in handles for percussion drills, jumpers or the like

Publications (1)

Publication Number Publication Date
GB277422A true GB277422A (en) 1927-09-15

Family

ID=10052806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1508826A Expired GB277422A (en) 1926-06-15 1926-06-15 Improvements in handles for percussion drills, jumpers or the like

Country Status (1)

Country Link
GB (1) GB277422A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700549A (en) * 1951-06-11 1955-01-25 Walter V Cornett Tool for demolition machines
US2829503A (en) * 1956-07-17 1958-04-08 Lawrence W Hayes Floating pipe driving head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700549A (en) * 1951-06-11 1955-01-25 Walter V Cornett Tool for demolition machines
US2829503A (en) * 1956-07-17 1958-04-08 Lawrence W Hayes Floating pipe driving head

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