ZA784742B - Hammer - Google Patents

Hammer

Info

Publication number
ZA784742B
ZA784742B ZA00784742A ZA784742A ZA784742B ZA 784742 B ZA784742 B ZA 784742B ZA 00784742 A ZA00784742 A ZA 00784742A ZA 784742 A ZA784742 A ZA 784742A ZA 784742 B ZA784742 B ZA 784742B
Authority
ZA
South Africa
Prior art keywords
hammer
Prior art date
Application number
ZA00784742A
Other languages
English (en)
Inventor
M Etherington
D Roberts
Original Assignee
Joy Mfg 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 Joy Mfg Co filed Critical Joy Mfg Co
Publication of ZA784742B publication Critical patent/ZA784742B/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/22—Drives for riveting machines; Transmission means therefor operated by both hydraulic or liquid pressure and gas pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/20—Drives for hammers; Transmission means therefor
    • B21J7/22—Drives for hammers; Transmission means therefor for power hammers
    • B21J7/24—Drives for hammers; Transmission means therefor for power hammers operated by steam, air, or other gaseous pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/20—Drives for hammers; Transmission means therefor
    • B21J7/22—Drives for hammers; Transmission means therefor for power hammers
    • B21J7/28—Drives for hammers; Transmission means therefor for power hammers operated by hydraulic or liquid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/20—Drives for hammers; Transmission means therefor
    • B21J7/46—Control devices specially adapted to forging hammers, not restricted to one of the preceding subgroups
ZA00784742A 1977-09-06 1978-08-21 Hammer ZA784742B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/830,557 US4150603A (en) 1977-09-06 1977-09-06 Fluid operable hammer

Publications (1)

Publication Number Publication Date
ZA784742B true ZA784742B (en) 1979-08-29

Family

ID=25257204

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00784742A ZA784742B (en) 1977-09-06 1978-08-21 Hammer

Country Status (13)

Country Link
US (1) US4150603A (it)
JP (1) JPS5493603A (it)
AU (1) AU519222B2 (it)
BE (1) BE869997A (it)
BR (1) BR7805798A (it)
CA (1) CA1106249A (it)
DE (1) DE2837712A1 (it)
ES (1) ES473092A1 (it)
FR (1) FR2401745A1 (it)
GB (1) GB2003774B (it)
IT (1) IT1106631B (it)
WO (1) WO1979000131A1 (it)
ZA (1) ZA784742B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4261249A (en) * 1978-09-08 1981-04-14 Joy Manufacturing Company Hammer
US4295411A (en) * 1979-10-03 1981-10-20 Joy Manufacturing Company Impactor
US4796428A (en) * 1983-01-17 1989-01-10 Oilgear Towler, Inc. Double-acting forging hammer and method
US4828048A (en) * 1986-11-10 1989-05-09 Mayer James R Hydraulic Percussion tool
US5680904A (en) * 1995-11-30 1997-10-28 Patterson; William N. In-the-hole percussion rock drill
US6155361A (en) * 1999-01-27 2000-12-05 Patterson; William N. Hydraulic in-the-hole percussion rock drill
US6464023B2 (en) 1999-01-27 2002-10-15 William N. Patterson Hydraulic in-the-hole percussion rock drill
CA2295463C (en) 1999-01-27 2008-04-29 William N. Patterson Hydraulic in-the-hole percussion rock drill
US7681664B2 (en) * 2008-03-06 2010-03-23 Patterson William N Internally dampened percussion rock drill

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079900A (en) * 1961-06-26 1963-03-05 Applied Power Ind Inc Fluid motor
USRE27244E (en) * 1969-11-26 1971-12-14 Device for building up high pulse liquid pressures
US3735823A (en) * 1970-05-01 1973-05-29 Nippon Pneumatic Mfg Impact motive implement
US3872934A (en) * 1973-10-30 1975-03-25 Nippon Pneumatic Mfg Impact tool
US4012909A (en) * 1974-06-11 1977-03-22 Hibbard George A Hammer
DE2600948C3 (de) * 1976-01-13 1984-04-19 Knäbel, Horst, Ing.(grad.), 4005 Meerbusch Krafteinheit als Arbeitsorgan, z.B. für Pressen zum Formgeben, Verdichten usw.

Also Published As

Publication number Publication date
IT1106631B (it) 1985-11-11
GB2003774B (en) 1982-01-27
CA1106249A (en) 1981-08-04
ES473092A1 (es) 1979-05-01
AU519222B2 (en) 1981-11-19
AU3948578A (en) 1980-03-06
BE869997A (fr) 1979-02-28
IT7850990A0 (it) 1978-09-06
JPS5493603A (en) 1979-07-24
US4150603A (en) 1979-04-24
FR2401745A1 (fr) 1979-03-30
WO1979000131A1 (en) 1979-03-22
BR7805798A (pt) 1979-05-15
GB2003774A (en) 1979-03-21
DE2837712A1 (de) 1979-03-15

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