GB309478A - Improvements in rock drills - Google Patents

Improvements in rock drills

Info

Publication number
GB309478A
GB309478A GB33086/28A GB3308628A GB309478A GB 309478 A GB309478 A GB 309478A GB 33086/28 A GB33086/28 A GB 33086/28A GB 3308628 A GB3308628 A GB 3308628A GB 309478 A GB309478 A GB 309478A
Authority
GB
United Kingdom
Prior art keywords
extension
chuck
piston
passage
tool
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
GB33086/28A
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of GB309478A publication Critical patent/GB309478A/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
    • B25D17/26—Lubricating
    • 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
    • B25D17/26—Lubricating
    • B25D17/265—Lubricating the lubricant being entrained to the machine parts by the driving fluid

Landscapes

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

Abstract

309,478. Ingersoll-Rand Co., (Assignees of Smith, W. A.). April 11, 1926, [Convention date]. Percussive drills.-A percussive rock drill comprises a bush F receiving an extension R from the piston C and having an extension G receiving a chuck H which, with the tool J, is caused to rotate therein by ribs U in the chuck engaging flutes T on the extension R of the piston which is fitted with a nut 0 cooperating with a rifle bar L carrying spring-pressed pawls P engaging a ratchet Q. Pressure fluid is supplied to the valve chamber y through a passage k from a throttle valve f. Water is conveyed to the tool through a tube 12, its pressure being augmented by the access of pressure fluid to the interior of the chuck through the flutes T and a passage 13 from the valve f.
GB33086/28A 1928-04-11 1928-11-12 Improvements in rock drills Expired GB309478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US269267A US1789117A (en) 1928-04-11 1928-04-11 Rock drill

Publications (1)

Publication Number Publication Date
GB309478A true GB309478A (en) 1930-01-09

Family

ID=23026533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33086/28A Expired GB309478A (en) 1928-04-11 1928-11-12 Improvements in rock drills

Country Status (3)

Country Link
US (1) US1789117A (en)
DE (1) DE508318C (en)
GB (1) GB309478A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582689A (en) * 1947-08-18 1952-01-15 Chicago Pneumatic Tool Co Oiling system for rock drills
US2694383A (en) * 1948-04-08 1954-11-16 Atlas Diesel Ab Pressure fluid driven hammer piston for hammer drills and other percussion tools
US5139093A (en) * 1991-04-18 1992-08-18 Ingersoll-Rand Company Wrap spring clutch for percussive apparatus
US5325950A (en) * 1992-08-31 1994-07-05 Ingersoll-Rand Company Lubricant remover for a wrap spring clutch

Also Published As

Publication number Publication date
US1789117A (en) 1931-01-13
DE508318C (en) 1930-09-26

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