GB212630A - Cutter chain for mining machines - Google Patents
Cutter chain for mining machinesInfo
- Publication number
- GB212630A GB212630A GB3391722A GB3391722A GB212630A GB 212630 A GB212630 A GB 212630A GB 3391722 A GB3391722 A GB 3391722A GB 3391722 A GB3391722 A GB 3391722A GB 212630 A GB212630 A GB 212630A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bit
- block
- cutter chain
- pin
- clamping member
- 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 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
- E21C35/18—Mining picks; Holders therefor
- E21C35/19—Means for fixing picks or holders
- E21C35/193—Means for fixing picks or holders using bolts as main fixing elements
- E21C35/1936—Means for fixing picks or holders using bolts as main fixing elements the picks having a square- or rectangular-section shank
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)
Abstract
212,630. Marks, E. C. R., (Goodman Manufacturing Co.). Dec. 12, 1922. Coal-cutting machines.-The cutter chain of a mining-machine is formed of blocks connected by links 2, the body of each block having an uninterrupted inclined front face 8 and being rearwardly tapered; an inclined aperture receives a bit 6 which abuts against a pin 13 and passes through an aperture 17 in a clamping member 14 inserted in the block 1 from the rear and adjusted by a nut 19. The clamping member is held against rotation or falling out by a pin 20 and has a relatively hard gripping surface preferably formed by a set screw 23. A projection 11 on the block 1 supports the outer end of the bit. The bit is double-ended and of uniform section.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3391722A GB212630A (en) | 1922-12-12 | 1922-12-12 | Cutter chain for mining machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3391722A GB212630A (en) | 1922-12-12 | 1922-12-12 | Cutter chain for mining machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB212630A true GB212630A (en) | 1924-03-12 |
Family
ID=10359083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3391722A Expired GB212630A (en) | 1922-12-12 | 1922-12-12 | Cutter chain for mining machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB212630A (en) |
-
1922
- 1922-12-12 GB GB3391722A patent/GB212630A/en not_active Expired
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