GB367664A - Back head construction for rock drills - Google Patents
Back head construction for rock drillsInfo
- Publication number
- GB367664A GB367664A GB15734/31A GB1573431A GB367664A GB 367664 A GB367664 A GB 367664A GB 15734/31 A GB15734/31 A GB 15734/31A GB 1573431 A GB1573431 A GB 1573431A GB 367664 A GB367664 A GB 367664A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lubricant
- tool
- chamber
- back head
- pressure fluid
- 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
- 238000010276 construction Methods 0.000 title 1
- 239000011435 rock Substances 0.000 title 1
- 239000000314 lubricant Substances 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 2
- 230000001050 lubricating effect Effects 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
- E21B6/00—Drives for drilling with combined rotary and percussive action
- E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
-
- 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
- E21B1/00—Percussion drilling
- E21B1/12—Percussion drilling with a reciprocating impulse member
- E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
- E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/15—Intermittent grip type mechanical movement
- Y10T74/1526—Oscillation or reciprocation to intermittent unidirectional motion
- Y10T74/1527—Screw and nut devices
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Drilling Tools (AREA)
- Forging (AREA)
- Earth Drilling (AREA)
Abstract
367,664. Lubricating percussive drills. CHICAGO PNEUMATIC TOOL CO., 6, East 44th Street, New York, U.S.A.-(Assignees of Nell, G. M. ; 6201, 2nd Boulevard, Detroit, Michigan, U.S.A.) May 29,1931, No. 15734. Convention date, July 15,1930. [Class 12 (ii).]' A bush 9a inserted in the back head of a percussive drill forms an annular chamber 14a therein containing lubricant. When the tool is working pressure fluid from the throttle valve 32 enters the lubricant chamber through channels 32a, 28 and forces oil through the restricted passage 31a into the twist mechanism and thence through a small space 34, 35 into the pressure fluid in channel 36. Lubricant is thus supplied to the forward end of the tool. Oil also passes through the passage 33. When the throttle is closed the pressure in chamber 14a is relieved.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US468071A US1868670A (en) | 1930-07-15 | 1930-07-15 | Back head construction for rock drills |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB367664A true GB367664A (en) | 1932-02-25 |
Family
ID=23858321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15734/31A Expired GB367664A (en) | 1930-07-15 | 1931-05-29 | Back head construction for rock drills |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1868670A (en) |
| DE (1) | DE604266C (en) |
| GB (1) | GB367664A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2553435A (en) * | 1948-12-21 | 1951-05-15 | Todd Shipyards Corp | Deck scaler |
| FR2542368B1 (en) * | 1983-03-08 | 1986-03-07 | Maco Meudon Sa | CONTROL DEVICE FOR PERFORATOR |
-
1930
- 1930-07-15 US US468071A patent/US1868670A/en not_active Expired - Lifetime
-
1931
- 1931-05-29 GB GB15734/31A patent/GB367664A/en not_active Expired
- 1931-06-05 DE DEC44899D patent/DE604266C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1868670A (en) | 1932-07-26 |
| DE604266C (en) | 1934-10-17 |
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