GB503999A - Improvements in or relating to picks or cutters of coal or rock cutting and like machines - Google Patents
Improvements in or relating to picks or cutters of coal or rock cutting and like machinesInfo
- Publication number
- GB503999A GB503999A GB1204238A GB1204238A GB503999A GB 503999 A GB503999 A GB 503999A GB 1204238 A GB1204238 A GB 1204238A GB 1204238 A GB1204238 A GB 1204238A GB 503999 A GB503999 A GB 503999A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- machines
- inset
- picks
- shank
- 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 abstract 3
- 239000011435 rock Substances 0.000 title abstract 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000010959 steel Substances 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
- E21C35/18—Mining picks; Holders therefor
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)
- Earth Drilling (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
503,999. Coal &c. cutting-machines. DARWINS, Ltd., and LINLEY, A. April 22, 1938, No.12042. (Class 68 (in To enable gripping devices to obtain an adequate grip, the picks of coal or rock cutting or like machines are formed by casting steel around an inset of relatively soft, ductile and tenacious material, such as mild steel, so that the inset is embedded in the shank and has at least one face exposed at a side of the shank. As shown, the inset 6 is of I-section, the web thereof having an aperture 9 and notches 10 to key the inset to the body of the shank ; a number of small apertures may replace the aperture 9.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1204238A GB503999A (en) | 1938-04-22 | 1938-04-22 | Improvements in or relating to picks or cutters of coal or rock cutting and like machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1204238A GB503999A (en) | 1938-04-22 | 1938-04-22 | Improvements in or relating to picks or cutters of coal or rock cutting and like machines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB503999A true GB503999A (en) | 1939-04-18 |
Family
ID=9997376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1204238A Expired GB503999A (en) | 1938-04-22 | 1938-04-22 | Improvements in or relating to picks or cutters of coal or rock cutting and like machines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB503999A (en) |
-
1938
- 1938-04-22 GB GB1204238A patent/GB503999A/en not_active Expired
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