ZA832434B - Control apparatus - Google Patents
Control apparatusInfo
- Publication number
- ZA832434B ZA832434B ZA832434A ZA832434A ZA832434B ZA 832434 B ZA832434 B ZA 832434B ZA 832434 A ZA832434 A ZA 832434A ZA 832434 A ZA832434 A ZA 832434A ZA 832434 B ZA832434 B ZA 832434B
- Authority
- ZA
- South Africa
- Prior art keywords
- control apparatus
- control
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7904—Reciprocating valves
- Y10T137/7905—Plural biasing means
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Fluid-Driven Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823212747 DE3212747A1 (de) | 1982-04-06 | 1982-04-06 | Einrichtung zur hubsteuerung einer zylinddergruppe eines hydraulischen ausbausystems, insbesondere zum setzen der stempel einer schreitausbaueinheit |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA832434B true ZA832434B (en) | 1983-12-28 |
Family
ID=6160337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA832434A ZA832434B (en) | 1982-04-06 | 1983-04-07 | Control apparatus |
Country Status (7)
Country | Link |
---|---|
US (1) | US4572709A (fr) |
AU (1) | AU558678B2 (fr) |
DE (1) | DE3212747A1 (fr) |
ES (1) | ES8402386A1 (fr) |
FR (1) | FR2524545B1 (fr) |
GB (1) | GB2118603B (fr) |
ZA (1) | ZA832434B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3404302C1 (de) * | 1984-02-08 | 1985-06-05 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Steuervorrichtung fuer ein hydraulisches Schreitausbaugestell |
DE3806833A1 (de) * | 1988-03-03 | 1989-09-14 | Hilti Ag | Pulverkraftbetriebenes bolzensetzgeraet |
GB2235234B (en) * | 1989-12-13 | 1993-06-30 | Meco Electronics Ltd | Mine roof supports |
GB9915309D0 (en) * | 1999-06-30 | 1999-09-01 | Lucas Ind Plc | Valve |
US6640636B1 (en) * | 2002-05-20 | 2003-11-04 | Kohji Toda | Ultrasound radiating and receiving device |
CN111094817B (zh) * | 2017-09-21 | 2021-09-10 | 克斯美库股份有限公司 | 带有顺序阀的缸体装置 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1458672B1 (de) * | 1951-01-28 | 1970-02-26 | Becorit Grubenausbau Gmbh | Steuerung für einen wandernden hydraulischen Strebausbau |
GB918024A (en) * | 1958-04-25 | 1963-02-13 | Hedwig Beukenberg | Staying apparatus for face conveyors |
GB1023125A (en) * | 1963-07-22 | 1966-03-16 | Dowty Mining Equipment Ltd | Mining apparatus |
DE1249796B (fr) * | 1963-09-06 | 1967-09-14 | ||
GB1024167A (en) * | 1964-02-14 | 1966-03-30 | Dowty Mining Equipment Ltd | Roof support assembly suitable for use in mines |
GB1063455A (en) * | 1964-05-15 | 1967-03-30 | Dowty Mining Equipment Ltd | Roof support assembly suitable for use in mines |
GB1194139A (en) * | 1967-10-21 | 1970-06-10 | Gewerk Eisenhuette Westfalia | Improvements in Hydraulically-Operated Supporting Devices for Mines |
GB1228381A (fr) * | 1967-11-08 | 1971-04-15 | ||
DE1960807C3 (de) * | 1969-12-04 | 1979-02-01 | Hippel Geb. Weiss, Sophie Von, 7771 Oberstenweiler | Schildausbaugestell |
DE2749312C2 (de) * | 1977-11-04 | 1984-12-20 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Steuereinrichtung mit Nachsetzautomatik für einen hydraulischen Stempelausbau |
PL210760A1 (pl) * | 1977-12-13 | 1979-09-24 | Bochumer Eisen Heintzmann | Uklad rozrzadu zaworowego przy przesuwnej ramownicy obudowy wyrobisk |
DE2757885A1 (de) * | 1977-12-24 | 1979-06-28 | Thyssen Industrie | Schildausbaugestell fuer den grubenausbau |
DE2815919A1 (de) * | 1978-04-13 | 1979-10-18 | Thyssen Industrie | Ueberdruckventil fuer hydraulische ausbauelemente des untertaegigen grubenbetriebs, vornehmlich fuer den steinkohlebergbau |
DE2832964C2 (de) * | 1978-07-27 | 1982-09-09 | Thyssen Industrie Ag, 4300 Essen | Überdruckventil, vornehmlich für hydraulische Schubkolbengetriebe von Ausbauelementen des untertägigen Grubenbetriebes |
DE2914884C2 (de) * | 1979-04-12 | 1987-05-14 | Gewerkschaft Eisenhütte Westfalia GmbH, 4670 Lünen | Steuereinrichtung für einen hydraulischen Stempelausbau mit zugeordneter Nachsetzautomatik |
US4279271A (en) * | 1979-08-31 | 1981-07-21 | Mac Valves, Inc. | Pressure regulator and flow control valve with pre-exhaust |
-
1982
- 1982-04-06 DE DE19823212747 patent/DE3212747A1/de active Granted
-
1983
- 1983-04-04 US US06/481,964 patent/US4572709A/en not_active Expired - Fee Related
- 1983-04-05 GB GB08309100A patent/GB2118603B/en not_active Expired
- 1983-04-06 FR FR8305589A patent/FR2524545B1/fr not_active Expired
- 1983-04-06 AU AU13183/83A patent/AU558678B2/en not_active Ceased
- 1983-04-06 ES ES521275A patent/ES8402386A1/es not_active Expired
- 1983-04-07 ZA ZA832434A patent/ZA832434B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
GB8309100D0 (en) | 1983-05-11 |
US4572709A (en) | 1986-02-25 |
FR2524545A1 (fr) | 1983-10-07 |
AU1318383A (en) | 1983-10-13 |
GB2118603B (en) | 1985-10-09 |
DE3212747A1 (de) | 1983-10-06 |
AU558678B2 (en) | 1987-02-05 |
FR2524545B1 (fr) | 1987-03-06 |
DE3212747C2 (fr) | 1992-07-16 |
ES521275A0 (es) | 1984-01-16 |
ES8402386A1 (es) | 1984-01-16 |
GB2118603A (en) | 1983-11-02 |
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