GB747245A - Improvements in folding gin poles for oil well masts - Google Patents
Improvements in folding gin poles for oil well mastsInfo
- Publication number
- GB747245A GB747245A GB21788/54A GB2178854A GB747245A GB 747245 A GB747245 A GB 747245A GB 21788/54 A GB21788/54 A GB 21788/54A GB 2178854 A GB2178854 A GB 2178854A GB 747245 A GB747245 A GB 747245A
- Authority
- GB
- United Kingdom
- Prior art keywords
- legs
- gin pole
- shoes
- raised
- mast
- 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
- 239000003129 oil well Substances 0.000 title 1
- 238000005553 drilling 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
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)
- Jib Cranes (AREA)
Abstract
747,245. Raising derrick masts. MOORE CORPORATION, L. C. July 26, 1954 [Jan. 20, 1954], No. 21788/54. Class 78 (4). A gin pole 8, 13 automatically unfolds from the position shown in broken lines in Fig. 1 as it is raised by force applied to a portion of the leg 8 extending below its pivot 7. As illustrated, the unfolding is effected by tension links 23 connected between points 24 on the shoes 3 and members 19 secured to the legs 13 and embracing the legs 8. A pin-and-slot connection 20, 22 between the legs 19 and the links 23 ensures that unfolding starts only after the legs 8 have been raised to an angle of about 45 degrees. The gin pole is raised by a sling 26 secured to the lower ends of the legs 8 and passing around vertical and horizontal pulleys 27, 28 to the travelling block 5 which is drawn towards the crown by a drilling line 30 which passes over a central pulley 31 on the gin pole and so restrains its final movement into engagement with shoes 16. Movement of the gin pole past this position is prevented by engagement of the lower ends of the legs 8 with plates 37 on the shoes 3. The mast 1 is subsequently raised about pins 2 on the shoes 3 by a sling 32 which passes from the travelling block 5 over pulleys 34, 35 in the mast and over spaced pulleys 33 on the gin pole to be secured to the mast.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US747245XA | 1954-01-20 | 1954-01-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB747245A true GB747245A (en) | 1956-03-28 |
Family
ID=22121283
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21788/54A Expired GB747245A (en) | 1954-01-20 | 1954-07-26 | Improvements in folding gin poles for oil well masts |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB747245A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10392827B2 (en) | 2014-02-27 | 2019-08-27 | Parsons Corporation | Wind tower erection system |
-
1954
- 1954-07-26 GB GB21788/54A patent/GB747245A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10392827B2 (en) | 2014-02-27 | 2019-08-27 | Parsons Corporation | Wind tower erection system |
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