GB1207785A - Improvements in or relating to counter-blow hammers - Google Patents

Improvements in or relating to counter-blow hammers

Info

Publication number
GB1207785A
GB1207785A GB00690/69A GB1069069A GB1207785A GB 1207785 A GB1207785 A GB 1207785A GB 00690/69 A GB00690/69 A GB 00690/69A GB 1069069 A GB1069069 A GB 1069069A GB 1207785 A GB1207785 A GB 1207785A
Authority
GB
United Kingdom
Prior art keywords
cylinder
ram
anvil
oil
valve
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
GB00690/69A
Inventor
Pavel Harvanek
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.)
VYZK USTAV TVARECICH STROJU
Vyzkumny Ustav Tvarecich Stroju a Technologie Tvareni
Original Assignee
VYZK USTAV TVARECICH STROJU
Vyzkumny Ustav Tvarecich Stroju a Technologie Tvareni
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 VYZK USTAV TVARECICH STROJU, Vyzkumny Ustav Tvarecich Stroju a Technologie Tvareni filed Critical VYZK USTAV TVARECICH STROJU
Publication of GB1207785A publication Critical patent/GB1207785A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B21J7/34—Drives for hammers; Transmission means therefor for power hammers operating both the hammer and the anvil, so-called counter-tup

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

1,207,785. Forging hammers. VYZKUMNY USTAV TVARECICH STROJU A TECHNOLOGIE TVARENI. 28 Feb., 1969 [18 March, 1968], No. 10890/69. Heading B3H. A counterblow hammer comprises a ram 2 urged towards an anvil 1 by pressurized gas in the cylinder 4 of a piston-cylinder assembly and raised by pressurized fluid and the anvil is mounted on piston-cylinder assemblies 5, 6 connected by a conduit 7 to the cylinder 4 through a control valve 8 and a return valve 9. The pressurized gas in the cylinder 4 may be supplied from a pressure vessel (not shown), or produced by trapping gas in the cylinder as the piston 3 is raised. The pressurized fluid is oil drawn from a reservoir 14 by a pump 12. In operation the pump supplies oil to the cylinder 4 to raise the ram 2 to a certain height whereupon an impulse opens a by-pass valve 17 to return the oil from the pump to the reservoir. The valve 8 is controlled manually or electromagnetically and opened to allow the ram 2 to descend and the anvil to rise. After impact the anvil descends and oil is displaced from the cylinder 6 to the cylinder 4 through the return valve 11 to partially raise the ram.
GB00690/69A 1968-03-18 1969-02-28 Improvements in or relating to counter-blow hammers Expired GB1207785A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS206368 1968-03-18

Publications (1)

Publication Number Publication Date
GB1207785A true GB1207785A (en) 1970-10-07

Family

ID=5356638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB00690/69A Expired GB1207785A (en) 1968-03-18 1969-02-28 Improvements in or relating to counter-blow hammers

Country Status (3)

Country Link
US (1) US3568592A (en)
FR (1) FR2004154A1 (en)
GB (1) GB1207785A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504568A (en) * 1983-02-08 1985-03-12 Eastman Kodak Company Sensitive silver halide photothermographic materials for producing dye images

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2432347A1 (en) * 1978-08-01 1980-02-29 Stepantsov Georgy Forging machine with moving anvil and impact member - uses gas and liquid mixture in chambers controlling movement
US4478566A (en) * 1982-02-18 1984-10-23 Rca Corporation Apparatus for injection molding an article
US4414167A (en) * 1982-02-18 1983-11-08 Rca Corporation Method for molding an article
US5802966A (en) * 1996-08-05 1998-09-08 The Minster Machine Company Dual mount control system
WO2001083134A1 (en) * 2000-04-28 2001-11-08 Morphic Technologies Aktiebolag Impact machine ii

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2655002A (en) * 1952-09-11 1953-10-13 Hydropress Inc Liquid pressure transmission system
US2914971A (en) * 1957-05-28 1959-12-01 Lombard Corp Counter-blow forging hammer
US3103136A (en) * 1960-11-28 1963-09-10 Warner Swasey Co High energy impact machine
US3145648A (en) * 1962-04-26 1964-08-25 Trans Energy Corp High energy impact forming machine
DE1294330B (en) * 1962-10-31 1969-05-08 Langenstein & Schemann Ag Counter blow hammer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504568A (en) * 1983-02-08 1985-03-12 Eastman Kodak Company Sensitive silver halide photothermographic materials for producing dye images

Also Published As

Publication number Publication date
DE1913255A1 (en) 1969-10-02
FR2004154A1 (en) 1969-11-21
US3568592A (en) 1971-03-09
DE1913255B2 (en) 1972-09-28

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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