GB1459802A - Rock hammers and the like - Google Patents

Rock hammers and the like

Info

Publication number
GB1459802A
GB1459802A GB1903773A GB1903773A GB1459802A GB 1459802 A GB1459802 A GB 1459802A GB 1903773 A GB1903773 A GB 1903773A GB 1903773 A GB1903773 A GB 1903773A GB 1459802 A GB1459802 A GB 1459802A
Authority
GB
United Kingdom
Prior art keywords
tool holder
tool
rock
april
striking head
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
GB1903773A
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.)
Arrow Construction Equipment Ltd
Original Assignee
Arrow Construction Equipment 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 Arrow Construction Equipment Ltd filed Critical Arrow Construction Equipment Ltd
Priority to GB1903773A priority Critical patent/GB1459802A/en
Priority to US461148A priority patent/US3910357A/en
Priority to DE2418943A priority patent/DE2418943A1/en
Publication of GB1459802A publication Critical patent/GB1459802A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E21B1/38—Hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Earth Drilling (AREA)

Abstract

1459802 Rock hammers and drills ARROW CONSTRUCTION EQUIPMENT Ltd 17 April 1974 [19 April 1973] 19037/73 Heading B4C A rock breaking hammer or drill comprises a tool 16 mounted in a tool holder 13 and a striking head 14 wherein a metal plate 20 is fixed to the tool holder 13 and supports a resilient rubber pad 25 and free striker plate 26 the tool 16 being freely mounted for limited axial motion in the tool holder. The tool holder moves on guides 11 and can be held away from the work by attachment to the striking head 14 by means of a chain 37.
GB1903773A 1973-04-19 1973-04-19 Rock hammers and the like Expired GB1459802A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1903773A GB1459802A (en) 1973-04-19 1973-04-19 Rock hammers and the like
US461148A US3910357A (en) 1973-04-19 1974-04-15 Cushioned anvil for rock hammers and the like
DE2418943A DE2418943A1 (en) 1973-04-19 1974-04-19 HAMMER AND / OR DRILLING DEVICE FOR BREAKING ROCK OR THE SAME

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1903773A GB1459802A (en) 1973-04-19 1973-04-19 Rock hammers and the like

Publications (1)

Publication Number Publication Date
GB1459802A true GB1459802A (en) 1976-12-31

Family

ID=10122706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1903773A Expired GB1459802A (en) 1973-04-19 1973-04-19 Rock hammers and the like

Country Status (3)

Country Link
US (1) US3910357A (en)
DE (1) DE2418943A1 (en)
GB (1) GB1459802A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703838A (en) * 1980-05-27 1987-11-03 Caterpillar Tractor Co. Recoil damper for a reciprocating member
US4379595A (en) * 1981-02-17 1983-04-12 Caterpillar Tractor Co. Ripper with offset impacting means and slotted shank
US5363835A (en) * 1992-08-31 1994-11-15 Rocktec Limited Nose block assembly
US6257352B1 (en) 1998-11-06 2001-07-10 Craig Nelson Rock breaking device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1883010A (en) * 1927-11-07 1932-10-18 Western Foundation Company Method and apparatus for forming piles
US1884946A (en) * 1929-11-20 1932-10-25 Sullivan Machinery Co Dislodging device
US2184745A (en) * 1938-05-10 1939-12-26 Raymond Concrete Pile Co Cushion for pile driving
US3327516A (en) * 1964-07-22 1967-06-27 Carroll W Hoshour Percussion tool holder

Also Published As

Publication number Publication date
DE2418943A1 (en) 1974-11-21
US3910357A (en) 1975-10-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee