GB440625A - Automatic feed for rock drills - Google Patents
Automatic feed for rock drillsInfo
- Publication number
- GB440625A GB440625A GB21988/35A GB2198835A GB440625A GB 440625 A GB440625 A GB 440625A GB 21988/35 A GB21988/35 A GB 21988/35A GB 2198835 A GB2198835 A GB 2198835A GB 440625 A GB440625 A GB 440625A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feed
- ring
- spring
- screw
- casing
- 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
- 239000011435 rock Substances 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 238000006757 chemical reactions by type Methods 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (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
440,625. Percussive drills. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A. Aug. 2, 1935, No. 21988. Convention date, Sept. 1, 1934. [Class 124] A feed for a rock drill is of the reaction type, so arranged that a rearward blow of the piston produces a forward feed. The feed mechanism is contained in a casing 32, 33 and 34 mounted on the end of the feed screw 28. When the steel is free from the rock face the forward blow produces forward movement but opposite rotation of the feed screw is prevented by the pawls 48a acting on the ring 40. When the steel engages the work it prevents forward blows on the drill body, and backward blows therefore produce backward movement of the screw 28 compressing the spring 70 and rotating the ring 80 splined to engage the helical flutes 76. The end of a spring 85 enters a notch in the ring 80 and allows this to rotate in one direction but opposite rotation is prevented by the spring expanding against the casing 82. Hence when the spring 70 expands the screw 28 is rotated to feed the drill forward. A shaft 57 has three angular positions, to engage pawls 48a for forward feed, to engage pawls 48b and release casing 82 for backward feed, and to release all these for hand positioning. The cam handle 100 adjusts the pressure between the brake surface 109 and the ring 40 to adjust the rate of feed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US742372A US2123364A (en) | 1934-09-01 | 1934-09-01 | Automatic feed for rock drills |
Publications (1)
Publication Number | Publication Date |
---|---|
GB440625A true GB440625A (en) | 1936-01-02 |
Family
ID=24984567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21988/35A Expired GB440625A (en) | 1934-09-01 | 1935-08-02 | Automatic feed for rock drills |
Country Status (3)
Country | Link |
---|---|
US (1) | US2123364A (en) |
DE (1) | DE668137C (en) |
GB (1) | GB440625A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5409070A (en) * | 1993-10-18 | 1995-04-25 | Roussy; Raymond J. | Coupling for rotary-vibratory drills |
US20060191719A1 (en) * | 2005-02-28 | 2006-08-31 | Roussy Raymond J | Method of geothermal loop installation |
US7647988B2 (en) * | 2005-02-28 | 2010-01-19 | Raymond J. Roussy | Method and system for installing geothermal transfer apparatuses with a sonic drill |
US8210281B2 (en) * | 2005-02-28 | 2012-07-03 | Roussy Raymond | Method and system for installing geothermal transfer apparatuses with a sonic drill |
US8136611B2 (en) * | 2005-02-28 | 2012-03-20 | Roussy Raymond | Method and system for installing micropiles with a sonic drill |
US7891440B2 (en) * | 2008-02-22 | 2011-02-22 | Roussy Raymond J | Method and system for installing geothermal transfer apparatuses with a sonic drill and a removable or retrievable drill bit |
US8118115B2 (en) * | 2008-02-22 | 2012-02-21 | Roussy Raymond J | Method and system for installing geothermal heat exchangers, micropiles, and anchors using a sonic drill and a removable or retrievable drill bit |
AU2012392519B2 (en) * | 2012-10-16 | 2016-11-03 | Halliburton Energy Services, Inc. | Drilling motor with one-way rotary clutch |
DE102017207249A1 (en) * | 2017-04-28 | 2018-10-31 | Aktiebolaget Skf | telescopic column |
-
1934
- 1934-09-01 US US742372A patent/US2123364A/en not_active Expired - Lifetime
-
1935
- 1935-08-02 GB GB21988/35A patent/GB440625A/en not_active Expired
- 1935-08-21 DE DEC50834D patent/DE668137C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE668137C (en) | 1938-11-28 |
US2123364A (en) | 1938-07-12 |
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