GB252637A - Improvements in coal mining machines - Google Patents
Improvements in coal mining machinesInfo
- Publication number
- GB252637A GB252637A GB3238225A GB3238225A GB252637A GB 252637 A GB252637 A GB 252637A GB 3238225 A GB3238225 A GB 3238225A GB 3238225 A GB3238225 A GB 3238225A GB 252637 A GB252637 A GB 252637A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cutter
- jib
- turntable
- drive
- shaft
- 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
- 239000003245 coal Substances 0.000 title 1
- 238000005065 mining Methods 0.000 title 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/22—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
- E21C25/24—Machines slitting solely by one or more cutter chains moving unidirectionally along jibs with flat jibs only
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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Turning (AREA)
Abstract
252,637. Tugwood, R. J., (Jeffrey Manufacturing Co.). Dec. 22, 1925. Coal-cutting machines.-A coalcutting machine comprises a supporting frame carrying a transversely swingable kerf cutter and a second kerf cutter swing- able in a plane at an angle to the transverse plane, and preferably in a vertical plane, the cutters having separate driving and feeding means and being operable simultaneously. As shown, a carriage 1 carries at the centre of its front end a cutter-chain jib 32 pivoted on a horizontal shaft 23, and has guides 5 in which brackets 7 are movable by screws 6, the brackets 7 supporting a ring 8 on which is rotatably mounted a turntable 9 rigidly carrying a horizontal cutter-chain jib 20. A motor 4 on the truck 1 is adapted at will to drive the truck at high or low speed, to drive the screws 6 to raise or lower the horizontal cutter-jib 20, and, through a shaft 26, bevel gears, a clutch and the shaft 23, to drive the cutter-chain on the jib 32. The shaft 23 also carries an eccentric 47<1> which oscillates a member 45 pivoted on a nut 40, the member 45 carrying opposed pawls adapted to engage opposed ratchet wheels on the nut to rotate the latter on a screw 38 pivoted at 39, the cutter-jib 32 being thereby raised or lowered; an adjustable shield plate holds either or both pawls out of action as desired. Beneath the turntable 9 is a motor 10 by which the cutterchain on the jib 20 is driven, and which may also drive a drum 11 through gearing and a friction clutch controlled by a hand-wheel 15; the drum winds in a rope 12 passing round guides 13 to a fixed point, and thereby rotates the turntable and cutter-jib to make an arc wall cut. The turntable 9 may be locked by a bolt engaging one of a series of notches.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE331413D BE331413A (en) | 1925-12-22 | ||
GB3238225A GB252637A (en) | 1925-12-22 | 1925-12-22 | Improvements in coal mining machines |
DEJ27119D DE445205C (en) | 1925-12-22 | 1926-01-05 | Schraemmaschine with a horizontally swinging cutting arm and a second, whose cut cuts the horizontal one |
FR609470D FR609470A (en) | 1925-12-22 | 1926-01-16 | Improvements to machines for coal mining |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3238225A GB252637A (en) | 1925-12-22 | 1925-12-22 | Improvements in coal mining machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB252637A true GB252637A (en) | 1926-06-03 |
Family
ID=10337726
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3238225A Expired GB252637A (en) | 1925-12-22 | 1925-12-22 | Improvements in coal mining machines |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE331413A (en) |
DE (1) | DE445205C (en) |
FR (1) | FR609470A (en) |
GB (1) | GB252637A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110043255A (en) * | 2018-09-10 | 2019-07-23 | 鄂尔多斯市昱轩装备科技有限公司 | Coal cutting roadway spiral arm milling machine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE743457C (en) * | 1940-03-14 | 1943-12-27 | Eickhoff Maschinenfabrik Geb | For the dismantling in the face along the excavation joint, movable cutting machine with two swiveling chain cutting arms |
DE967309C (en) * | 1951-07-19 | 1957-10-31 | Miag Vertriebs Gmbh | Method and device for clearing away bulk material stored in waves by means of a longitudinal scraper conveyor |
-
0
- BE BE331413D patent/BE331413A/xx unknown
-
1925
- 1925-12-22 GB GB3238225A patent/GB252637A/en not_active Expired
-
1926
- 1926-01-05 DE DEJ27119D patent/DE445205C/en not_active Expired
- 1926-01-16 FR FR609470D patent/FR609470A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110043255A (en) * | 2018-09-10 | 2019-07-23 | 鄂尔多斯市昱轩装备科技有限公司 | Coal cutting roadway spiral arm milling machine |
Also Published As
Publication number | Publication date |
---|---|
DE445205C (en) | 1927-06-04 |
BE331413A (en) | |
FR609470A (en) | 1926-08-16 |
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