GB763577A - Improvements in or relating to drawworks for use in oil well drilling - Google Patents
Improvements in or relating to drawworks for use in oil well drillingInfo
- Publication number
- GB763577A GB763577A GB25519/53A GB2551953A GB763577A GB 763577 A GB763577 A GB 763577A GB 25519/53 A GB25519/53 A GB 25519/53A GB 2551953 A GB2551953 A GB 2551953A GB 763577 A GB763577 A GB 763577A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- sprockets
- drive transmission
- clutch
- transmission
- 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
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
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
- E21B3/04—Rotary tables
- E21B3/06—Adaptation of rotary draw works to drive rotary tables
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)
Abstract
763,577. Earth-boring apparatus. UNITED STATES STEEL CORPORATION. Sept. 15, 1953 [May 15, 1953], No. 25519/53. Class 85. In the drawworks of an earthboring rig a driven shaft 14 of a transmission gear can drive a hoist drum shaft 16 either by a drive transmission comprising sprockets 53 keyed to the shaft 14, chains 80, sprockets 78, and clutch 77 or by a drive transmission comprising clutch 57, a shaft 19 co-axial with shaft 14, sprockets 120 keyed to the shaft 19, chains 124, sprockets 81, and clutch 83. The first drive transmission has a higher gear ratio than the second transmission so that the number of forward speeds available is double the number of forward gears, e.g. three 32, 50, 44; 33, 51, 46 and 34, 52, 48, available between the driven input shaft 12 and the shaft 14. When clutch 57 is disengaged an hydraulic brake 126 can act on the hoist drum shaft 12 via shaft 20, sprockets 127, chains 128, sprockets 121 on shaft 19 and then through the second drive transmission. The second drive transmission can, if desired, be removed from the drawwork, the brake 126 then being coupled direct to sprockets 81. Drives to the cathead and sandreel shaft 17 and rotary table R are taken from shafts 14 and 16 respectively. The reverse drive transmission between shafts 12 and 14 form the subject-matter of Specification 763,579 which is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US763577XA | 1953-05-15 | 1953-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB763577A true GB763577A (en) | 1956-12-12 |
Family
ID=22131498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB25519/53A Expired GB763577A (en) | 1953-05-15 | 1953-09-15 | Improvements in or relating to drawworks for use in oil well drilling |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB763577A (en) |
-
1953
- 1953-09-15 GB GB25519/53A patent/GB763577A/en not_active Expired
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