GB1333627A - Mining machines - Google Patents
Mining machinesInfo
- Publication number
- GB1333627A GB1333627A GB519671A GB1333627DA GB1333627A GB 1333627 A GB1333627 A GB 1333627A GB 519671 A GB519671 A GB 519671A GB 1333627D A GB1333627D A GB 1333627DA GB 1333627 A GB1333627 A GB 1333627A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluid
- lock
- machine
- starter
- motor
- 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
Links
- 238000005065 mining Methods 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 abstract 6
- 239000000428 dust Substances 0.000 abstract 3
- 239000007858 starting material Substances 0.000 abstract 3
- 230000001629 suppression Effects 0.000 abstract 2
- 230000000740 bleeding effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/04—Safety devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/22—Equipment for preventing the formation of, or for removal of, dust
- E21C35/226—Control valves for the spraying liquid used in dust suppression systems
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
1333627 Mining machines CONFLOW Ltd 10 Feb 1972 [23 Feb 1971] 5196/71 Heading E1F A mining machine has safety means involving the association of a lock with the starter of the drive motor of the cutter means of the machine and this lock is such that it cannot be withdrawn clear of the starter until a predetermined time has elapsed after commencement of emission of dust supression fluid in the region of the cutter means. The delay is regulated by bleeding off fluid from a conduit of the dust suppression fluid-supply system and passing the fluid through a restriction before it directly or indirectly actuates the lock-controlling means. Said means may be a pistoncylinder unit of which the piston rod thereof can engage one or two projections, e.g., one or two opposed, spring-biassed pawls, on a shaft of the starting handle of the motor or can carry a guard that can prevent access to a push button of a starter switch of the motor. The restriction can involve an adjustable aperture needle valve and can be bypassed, the bypass having a lightly loaded, spring biassed, non-return valve allowing of release of fluid from the lock-actuating means. The machine may also have an audible warning device operated by fluid bled off from the dust suppression fluid supply. (For Figures see next page)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB519671 | 1971-02-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1333627A true GB1333627A (en) | 1973-10-10 |
Family
ID=9791528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB519671A Expired GB1333627A (en) | 1971-02-23 | 1971-02-22 | Mining machines |
Country Status (5)
Country | Link |
---|---|
US (1) | US3743354A (en) |
JP (1) | JPS5149565B1 (en) |
AU (1) | AU458563B2 (en) |
DE (1) | DE2208323C3 (en) |
GB (1) | GB1333627A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1586036A (en) * | 1978-04-12 | 1981-03-11 | Dresser Europe Sa | Pre-start warning device for a machine |
DE2824611C3 (en) * | 1978-06-05 | 1982-03-04 | Ruhrkohle Ag, 4300 Essen | Device for start-up warning and dust control on cutting machines |
DE8013540U1 (en) * | 1980-05-20 | 1980-10-30 | Bergwerksverband Gmbh, 4300 Essen | WATER NOZZLE WITH SELF-CLEANING DEVICE |
JPS571178A (en) * | 1980-05-30 | 1982-01-06 | Mitsubishi Electric Corp | Annunciator for location of elevator |
US4516807A (en) * | 1981-10-13 | 1985-05-14 | Coal Industry (Patents) Limited | Fluid supply systems for rotary cutter heads for mining machines and rotary cutter heads comprising fluid supply systems |
DE3235325A1 (en) * | 1981-10-13 | 1983-04-21 | Coal Industry (Patents) Ltd., London | LIQUID SUPPLY SYSTEM FOR ROTATING CUTTING HEADS FOR MINING MACHINES WITH ROTATING CUTTING HEADS WITH LIQUID SUPPLYING SYSTEMS |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1030871A (en) * | 1910-02-12 | 1912-07-02 | C T Carnahan Mfg Company | Fluid-actuated tool. |
US2907303A (en) * | 1957-08-14 | 1959-10-06 | Chicago Pneumatic Tool Co | Pneumatic rock or coal drill |
-
1971
- 1971-02-22 GB GB519671A patent/GB1333627A/en not_active Expired
-
1972
- 1972-02-11 US US00225525A patent/US3743354A/en not_active Expired - Lifetime
- 1972-02-15 AU AU38993/72A patent/AU458563B2/en not_active Expired
- 1972-02-22 DE DE2208323A patent/DE2208323C3/en not_active Expired
- 1972-02-23 JP JP47018824A patent/JPS5149565B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2208323A1 (en) | 1972-09-07 |
DE2208323B2 (en) | 1973-06-20 |
US3743354A (en) | 1973-07-03 |
AU458563B2 (en) | 1975-02-27 |
DE2208323C3 (en) | 1974-01-17 |
JPS5149565B1 (en) | 1976-12-27 |
AU3899372A (en) | 1973-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PE20 | Patent expired after termination of 20 years |