GB1266137A - - Google Patents
Info
- Publication number
- GB1266137A GB1266137A GB1369868A GB1266137DA GB1266137A GB 1266137 A GB1266137 A GB 1266137A GB 1369868 A GB1369868 A GB 1369868A GB 1266137D A GB1266137D A GB 1266137DA GB 1266137 A GB1266137 A GB 1266137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cutting
- head
- bolt
- pick
- 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
- 238000005065 mining Methods 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral 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
- 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
-
- 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
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1831—Fixing methods or devices
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)
- Milling Processes (AREA)
Abstract
1,266,137. Mining pick. PADLEY & VENABLES Ltd. 9 May, 1969 [21 March, 1968], No. 13698/68. Heading E1F. A mineral mining pick comprises a longitudinally extending shank 2 integrally formed with a head part 1 having a seating surface 4, a cutting part 7 having implanted therein at least one cutting tip 8 and secured by a bolt 12 to the head part, and means to restrain relative sliding movement between abutment surface 9 on the cutting part and the surface 4 to inhibit both shear forces from being developed on the bolt and relative rotation between the head and cutting parts about the axis of the bolt. The means may comprise shoulders 4a and 9a on the head and cutting parts or a tail portion on the cutting part and projecting into a recess in a pick block supporting the shank 2. Alternatively, or additionally ribs, balls, pegs, or dowels may project from surface 4 or 9 into corresponding recesses in the other surface.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1369868 | 1968-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1266137A true GB1266137A (en) | 1972-03-08 |
Family
ID=10027769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1369868A Expired GB1266137A (en) | 1968-03-21 | 1968-03-21 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1266137A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4274677A (en) * | 1976-07-23 | 1981-06-23 | Pars Engineering Company Limited | Mineral cutter pick arrangement |
DE3806959A1 (en) * | 1987-03-19 | 1988-10-06 | Joy Technologies Inc | CHISEL HOLDER FOR A MINING MACHINE |
US4915455A (en) * | 1988-11-09 | 1990-04-10 | Joy Technologies Inc. | Miner cutting bit holding apparatus |
US5011229A (en) * | 1988-11-09 | 1991-04-30 | Joy Technologies Inc. | Miner cutting bit holding apparatus |
US9302267B2 (en) | 2010-11-30 | 2016-04-05 | Harnischfeger Technologies, Inc. | Pick holder |
-
1968
- 1968-03-21 GB GB1369868A patent/GB1266137A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4274677A (en) * | 1976-07-23 | 1981-06-23 | Pars Engineering Company Limited | Mineral cutter pick arrangement |
DE3806959A1 (en) * | 1987-03-19 | 1988-10-06 | Joy Technologies Inc | CHISEL HOLDER FOR A MINING MACHINE |
US4828327A (en) * | 1987-03-19 | 1989-05-09 | Joy Technologies Inc. | Bit holder for miner |
US4915455A (en) * | 1988-11-09 | 1990-04-10 | Joy Technologies Inc. | Miner cutting bit holding apparatus |
US5011229A (en) * | 1988-11-09 | 1991-04-30 | Joy Technologies Inc. | Miner cutting bit holding apparatus |
US9302267B2 (en) | 2010-11-30 | 2016-04-05 | Harnischfeger Technologies, Inc. | Pick holder |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |