GB807819A - Improvements in or relating to percussion tools - Google Patents
Improvements in or relating to percussion toolsInfo
- Publication number
- GB807819A GB807819A GB24795/57A GB2479557A GB807819A GB 807819 A GB807819 A GB 807819A GB 24795/57 A GB24795/57 A GB 24795/57A GB 2479557 A GB2479557 A GB 2479557A GB 807819 A GB807819 A GB 807819A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- aug
- spaced
- steel
- surrounding
- 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
- 238000009527 percussion Methods 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 239000013013 elastic material Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
807,819. Percussive tools. SOC.D'ELECTROCHIMIE, D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE. Aug. 6, 1957 [Aug. 10, 1956], No. 24795/57. Class 124. The flange of a steel for a percussive drill consists of a plurality of ring-like elastic elements surrounding the steel and spaced from one another, each element being provided with internal and/or external longitudinal grooves and covered and compressed by an outer metal sleeve. As shown, Fig. 3, the elements 21, mounted on a shank 16, are maintained in position by a metallic sleeve 18 surrounding them, projections 20 producing a pressure on the elements. The elements may be circular, square or hexagonal in cross-section and may be divided into two along a diameter, each element being provided with longitudinal grooves 22. Single elements, spaced from one another may be used or the elements may be joined by thin portions 23 of the elastic material, as shown in Figs. 5D, 5D<SP>1</SP> which also show an embodiment having external grooves.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR807819X | 1956-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB807819A true GB807819A (en) | 1959-01-21 |
Family
ID=9252619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24795/57A Expired GB807819A (en) | 1956-08-10 | 1957-08-06 | Improvements in or relating to percussion tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB807819A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051905A (en) * | 1974-03-28 | 1977-10-04 | Gerbruder Heller | Drill for percussion drilling machines |
| DE3220178A1 (en) * | 1982-05-28 | 1983-12-01 | Phoenix Ag, 2100 Hamburg | Cylindrical rubber sleeve for drill rods |
| US4749051A (en) * | 1984-10-01 | 1988-06-07 | Santrade Limited | Drill steel |
-
1957
- 1957-08-06 GB GB24795/57A patent/GB807819A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4051905A (en) * | 1974-03-28 | 1977-10-04 | Gerbruder Heller | Drill for percussion drilling machines |
| DE3220178A1 (en) * | 1982-05-28 | 1983-12-01 | Phoenix Ag, 2100 Hamburg | Cylindrical rubber sleeve for drill rods |
| US4749051A (en) * | 1984-10-01 | 1988-06-07 | Santrade Limited | Drill steel |
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