GB190805778A - Improvements in Percussive Drills for use in Machine or Hand Rock-drilling. - Google Patents
Improvements in Percussive Drills for use in Machine or Hand Rock-drilling.Info
- Publication number
- GB190805778A GB190805778A GB190805778DA GB190805778A GB 190805778 A GB190805778 A GB 190805778A GB 190805778D A GB190805778D A GB 190805778DA GB 190805778 A GB190805778 A GB 190805778A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drilling
- machine
- cutter
- holder
- percussive drills
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
5778. Harrington, J., and Parry, R. March 14. Rock drills. - Relates to percussive drills with detachable cutters, and consists in inserting a bush 6 of any suitable material between a recess in the holder 1 and the tapered oval tang 9 of the cutter 2. The cutter 2 may have a number of tangs, and a washer of lead may be placed between the cutter and the end of the holder. Water may be passed through the holder and a passage 10 in the tang 9, a sliding sleeve being then provided to close the driftway 11.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190805778T | 1908-03-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190805778A true GB190805778A (en) | 1909-03-11 |
Family
ID=32489189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190805778D Expired GB190805778A (en) | 1908-03-14 | 1908-03-14 | Improvements in Percussive Drills for use in Machine or Hand Rock-drilling. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190805778A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2595962A (en) * | 1948-05-06 | 1952-05-06 | Letts Orlando Arthur | Hard rock drill head |
US2604305A (en) * | 1946-10-24 | 1952-07-22 | Pearl Edith Livingstone | Rock drill tip |
US2633335A (en) * | 1947-02-20 | 1953-03-31 | Ingersoll Rand Co | Rock drilling tool |
US2634954A (en) * | 1948-06-19 | 1953-04-14 | Joy Mfg Co | Rock drill bit |
US2863686A (en) * | 1954-04-27 | 1958-12-09 | Thompson Products Ltd | Rock drill bit |
-
1908
- 1908-03-14 GB GB190805778D patent/GB190805778A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2604305A (en) * | 1946-10-24 | 1952-07-22 | Pearl Edith Livingstone | Rock drill tip |
US2633335A (en) * | 1947-02-20 | 1953-03-31 | Ingersoll Rand Co | Rock drilling tool |
US2595962A (en) * | 1948-05-06 | 1952-05-06 | Letts Orlando Arthur | Hard rock drill head |
US2634954A (en) * | 1948-06-19 | 1953-04-14 | Joy Mfg Co | Rock drill bit |
US2863686A (en) * | 1954-04-27 | 1958-12-09 | Thompson Products Ltd | Rock drill bit |
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