GB232196A - Improvement in mining machines - Google Patents
Improvement in mining machinesInfo
- Publication number
- GB232196A GB232196A GB7926/25A GB792625A GB232196A GB 232196 A GB232196 A GB 232196A GB 7926/25 A GB7926/25 A GB 7926/25A GB 792625 A GB792625 A GB 792625A GB 232196 A GB232196 A GB 232196A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rods
- nut
- subject
- improvement
- clutches
- 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 2
- 238000007689 inspection Methods 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
- E21C29/04—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains
- E21C29/06—Propulsion of machines for slitting or completely freeing the mineral from the seam by cable or chains anchored at one or both ends to the mine working face
- E21C29/10—Cable or chain co-operating with a winch or the like on the machine
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)
- Transmission Devices (AREA)
Abstract
232,196. Sullivan Machinery Co., (Assignees of Holmes, M. P.). April 8, 1924, [Convention date]. Controlling variable-speed gearing.-The Specification as open to inspection under Sect. 91 (3) (a) states that the feed-operating sprocket of a mining machine is driven through fast and slow gearing controlled by two friction clutches operated by rollers carried by pivoted levers 107, 108, engaged respectively by relatively-slidable rods 112, 111, which rods have oppositely-threaded half-round ends engaged by a single doublethreaded nut 118, rotation of the nut causing opposite movement of the rods 107, 108 and clutches. This subject-matter now forms the subject matter of Specification 241,953.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US232196XA | 1924-04-08 | 1924-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB232196A true GB232196A (en) | 1926-06-24 |
Family
ID=21813774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7926/25A Expired GB232196A (en) | 1924-04-08 | 1925-03-24 | Improvement in mining machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB232196A (en) |
-
1925
- 1925-03-24 GB GB7926/25A patent/GB232196A/en not_active Expired
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