GB950730A - Improvements in or relating to drill hammers - Google Patents
Improvements in or relating to drill hammersInfo
- Publication number
- GB950730A GB950730A GB13475/60A GB1347560A GB950730A GB 950730 A GB950730 A GB 950730A GB 13475/60 A GB13475/60 A GB 13475/60A GB 1347560 A GB1347560 A GB 1347560A GB 950730 A GB950730 A GB 950730A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- bore
- movable tube
- flottmann
- april
- 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
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 238000011010 flushing procedure Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
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)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
950,730. Percussive tools. F. H. FLOTTMANN, [trading as INGENIEURBURO DIPL. - ING. F. H. FLOTTMANN]. April 14, 1960 [April 14, 1959], No. 13475/60. Addition to 876,766. Heading B4C. A drill hammer, having a central pipe for the supply of flushing water ending in a movable tube as described and claimed in the parent Specification, has, fitted to the end of the movable tube which extends into the bore in the steel shank, a seating sleeve which forms a seal between the tube and the bore. As shown, the movable tube 8 has a groove 11 into which is inserted a head 13 formed on a sleeve 12 which may have an outwardly bulged portion 14. The sleeve may end in a flared portion 15 or in a cylindrical portion, Fig. 5 (not shown). The steel shank is provided with an enlarged bore portion to allow entry of the sleeve.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEI16289A DE1102071B (en) | 1959-04-14 | 1959-04-14 | Rotary hammer with central water flush |
Publications (1)
Publication Number | Publication Date |
---|---|
GB950730A true GB950730A (en) | 1964-02-26 |
Family
ID=7185914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13475/60A Expired GB950730A (en) | 1959-04-14 | 1960-04-14 | Improvements in or relating to drill hammers |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH374611A (en) |
DE (1) | DE1102071B (en) |
GB (1) | GB950730A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059279A (en) * | 1975-07-04 | 1977-11-22 | Roger Montabert | Hollow percussion drill rod with seal for cleaning fluid inlet tube |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1232090B (en) * | 1961-02-27 | 1967-01-12 | Ingersoll Rand Co | Hammer drill |
FR2482693A1 (en) * | 1980-05-14 | 1981-11-20 | Montabert Ets | Composite seal for hydrostatic coupling to percussion drill - involving viscoelastic and rubber components opt. of polyacetal and polyurethane |
-
1959
- 1959-04-14 DE DEI16289A patent/DE1102071B/en active Pending
-
1960
- 1960-04-06 CH CH386560A patent/CH374611A/en unknown
- 1960-04-14 GB GB13475/60A patent/GB950730A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059279A (en) * | 1975-07-04 | 1977-11-22 | Roger Montabert | Hollow percussion drill rod with seal for cleaning fluid inlet tube |
Also Published As
Publication number | Publication date |
---|---|
DE1102071B (en) | 1961-03-16 |
CH374611A (en) | 1964-01-31 |
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