ZA72824B - Improvements in or relating to impact tools or apparatus - Google Patents

Improvements in or relating to impact tools or apparatus

Info

Publication number
ZA72824B
ZA72824B ZA720824A ZA72824A ZA72824B ZA 72824 B ZA72824 B ZA 72824B ZA 720824 A ZA720824 A ZA 720824A ZA 72824 A ZA72824 A ZA 72824A ZA 72824 B ZA72824 B ZA 72824B
Authority
ZA
South Africa
Prior art keywords
relating
impact tools
tools
impact
Prior art date
Application number
ZA720824A
Inventor
R Phillips
Original Assignee
Dobson Park Ind
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 Dobson Park Ind filed Critical Dobson Park Ind
Publication of ZA72824B publication Critical patent/ZA72824B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/22—Hand tools or hand-held power-operated tools specially adapted for dislodging minerals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/06—Means for driving the impulse member
    • B25D9/12—Means for driving the impulse member comprising a built-in liquid motor, i.e. the tool being driven by hydraulic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
    • B25D9/14—Control devices for the reciprocating piston
    • B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S173/00—Tool driving or impacting
    • Y10S173/04—Liquid operated

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Forging (AREA)
ZA720824A 1971-02-10 1972-02-08 Improvements in or relating to impact tools or apparatus ZA72824B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB432671A GB1356022A (en) 1971-02-10 1971-02-10 Impact tools or apparatus

Publications (1)

Publication Number Publication Date
ZA72824B true ZA72824B (en) 1972-11-29

Family

ID=9775054

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA720824A ZA72824B (en) 1971-02-10 1972-02-08 Improvements in or relating to impact tools or apparatus

Country Status (15)

Country Link
US (1) US3800664A (en)
JP (1) JPS5315001B1 (en)
AU (1) AU461421B2 (en)
BE (1) BE778621A (en)
CA (1) CA937835A (en)
CS (1) CS178404B2 (en)
DE (1) DE2147935B2 (en)
ES (1) ES399577A1 (en)
FR (1) FR2126776A5 (en)
GB (1) GB1356022A (en)
HU (1) HU164405B (en)
IT (1) IT948390B (en)
NL (1) NL166636C (en)
SE (1) SE398720B (en)
ZA (1) ZA72824B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925985A (en) * 1973-01-09 1975-12-16 Rapidex Inc Impact actuator
US4006783A (en) * 1975-03-17 1977-02-08 Linden-Alimak Ab Hydraulic operated rock drilling apparatus
US4036108A (en) * 1975-09-12 1977-07-19 Dobson Park Industries, Ltd. Pressure fluid operated percussion tools
US3995700A (en) * 1975-10-14 1976-12-07 Gardner-Denver Company Hydraulic rock drill system
GB1581441A (en) * 1976-01-29 1980-12-17 Dobson Park Ind Fluid powered impact tools
US4172411A (en) * 1976-06-09 1979-10-30 Mitsui Engineering & Shipbuilding Co., Ltd. Hydraulic hammer
SE429111B (en) * 1978-10-19 1983-08-15 Atlas Copco Ab HYDRAULIC DRIVES
US4344353A (en) * 1979-05-14 1982-08-17 Joy Manufacturing Company Hammer
US4512417A (en) * 1981-11-05 1985-04-23 Ingersoll-Rand Company Hydraulic reciprocating device
GB2115886B (en) * 1982-03-02 1985-08-29 Dobson Park Ind Public Limited Impact tools
JPS60153639U (en) * 1984-03-22 1985-10-14 株式会社荏原製作所 Waterproof insulated wire type submersible motor
US4819542A (en) * 1985-12-23 1989-04-11 Spetsialnoe Konstruktorskoe Bjuro Gidroimpulsnoi Tekhniki Sibirskogo Otdelenia Akademii Nauk Sssr Percussive tool
DE4229590C2 (en) * 1992-09-04 1996-06-20 Klemm Guenter Hydraulic impact device with pilot valve
JP5899071B2 (en) * 2012-07-06 2016-04-06 古河ロックドリル株式会社 Gas supply device for hydraulic breaker and hydraulic breaker with gas supply device having the same
DE102015008339A1 (en) 2015-07-01 2017-01-05 Tracto-Technik Gmbh & Co. Kg "Rammbohrvorrichtung and method for reversing a ram boring device"
SE541217C2 (en) * 2017-09-08 2019-05-07 Epiroc Rock Drills Ab Mining or construction vehicle
SE542480C2 (en) * 2017-09-08 2020-05-19 Epiroc Rock Drills Ab Mining or construction vehicle enclosing a conduit arrangement
CN113560549A (en) * 2021-08-06 2021-10-29 四川省柏均机械制造有限责任公司 Dead head removing impact hammer for high manganese steel casting

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB784684A (en) * 1954-08-31 1957-10-16 George Stephen Kammer Improvements in reciprocating motors for actuation by a fluid supplied at substantially constant pressure
CH376866A (en) * 1958-11-17 1964-04-15 Ingbuero Dipl Ing Friedrich He Control on hydraulically operated impact devices
FR1361466A (en) * 1963-04-09 1964-05-22 Hispano Suiza Sa Improvements to hydraulic control systems with double-acting receiving devices
DE1528583A1 (en) * 1965-05-20 1970-01-29 Stahl U Appbau Hans Leffer Gmb Hydraulically or pneumatically continuously operated piston drive with reciprocating movement, especially double-acting pressure intensifier
CH473319A (en) * 1968-06-19 1969-05-31 Hydrel Ag Maschf Fully hydraulic device on the machine or apparatus with a straight back and forth moving part, for largely load and speed independent reversal of the accuracy of the movement of the part between two adjustable reversing points

Also Published As

Publication number Publication date
DE2147935A1 (en) 1972-10-26
GB1356022A (en) 1974-06-12
IT948390B (en) 1973-05-30
DE2147935B2 (en) 1973-02-22
NL166636C (en) 1981-09-15
FR2126776A5 (en) 1972-10-06
AU3822272A (en) 1973-07-26
CA937835A (en) 1973-12-04
BE778621A (en) 1972-05-16
SE398720B (en) 1978-01-16
JPS5315001B1 (en) 1978-05-22
DE2147935C3 (en) 1973-09-13
NL7201642A (en) 1972-08-14
US3800664A (en) 1974-04-02
ES399577A1 (en) 1974-11-01
CS178404B2 (en) 1977-09-15
HU164405B (en) 1974-02-28
AU461421B2 (en) 1975-05-29
NL166636B (en) 1981-04-15

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