GB675003A - Improvements in or relating to a portable oil well mast - Google Patents
Improvements in or relating to a portable oil well mastInfo
- Publication number
- GB675003A GB675003A GB29865/49A GB2986549A GB675003A GB 675003 A GB675003 A GB 675003A GB 29865/49 A GB29865/49 A GB 29865/49A GB 2986549 A GB2986549 A GB 2986549A GB 675003 A GB675003 A GB 675003A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mast
- lower portion
- lorry
- sides
- upper portion
- 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 abstract 3
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)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
675,003. Portable oil well masts. MOORE CORPORATION. L. C. Nov. 22, 1949. [Dec. 3, 1948] No. 29865/49. Class 78 (iv). A portable oil well mast has upwardly converging sides, the upper portions of which are connected by rigid bracing, while the lower portions are pivotally mounted, so that their ends can be swung laterally toward each other to reduce the width of the lower portion of the mast for transportation purposes. The mast. Figs. 1 and 2, is of the type pivoted at 6 to a base 1 and raised by action of a cable 19 to rest against a gin pole formed by front and rear legs 8 and 9 respectively. The mast is of U-shape cross section, the front being open, and consists of upper and lower portions 14, 15, the back of the upper portion consisting of rigid bracing. The back of the lower portion however, consists of two bracing structures each secured to one of the sides and supporting heavy horizontal members 36 which are pivoted together at 35. This enables the lower portion, when pivots 6 on the base and connections 16, 17 to the upper portion have been removed to be deformed whereby the sides can be made parallel and the overall width is reduced to conform with highway limitations e.g. reduced to eight feet. In order to load the mast on a lorry Fig. 8, the drawworks 11 is operated to lower the mast so that the upper portion rests on the lorry. Thereafter the mast hook 21 is drawn up into the upper portion, and the cable 19 is disconnected and reattached to the lower portion. The lower portion is then detached by first removing the connections 17 which will be underneath, and then removing the upper connections so as to leave the upper portion on the lorry. The lorry is then backed as shown so the lower portion can be raised and lowered again to lie on the lorry and surround the upper portion. The pivots 6 are now removed and the sides of the lower portion made parallel so that the portions both rest on the lorry nested within each other. For deforming the lower portion, a screw jack 46 is connected between the bracing on one side and a toggle linkage 41 interconnecting a pair of brackets 39 one attached to each side. A telescoping link 48 between the toggle link and the bracing on the opposite side to that of the jack 46 is provided with a catch pin 49 to lock the sides in the position, as used, Fig. 2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US675003XA | 1948-12-03 | 1948-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB675003A true GB675003A (en) | 1952-07-02 |
Family
ID=22076391
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29865/49A Expired GB675003A (en) | 1948-12-03 | 1949-11-22 | Improvements in or relating to a portable oil well mast |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB675003A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6381059B1 (en) | 1999-11-03 | 2002-04-30 | Steven A. Carlson | Optical shutter |
US6583916B2 (en) | 1999-11-03 | 2003-06-24 | Optodot Corporation | Optical shutter assembly |
FR2849098A1 (en) * | 2002-12-20 | 2004-06-25 | Cie De Forage Cofor | Unit for transporting, positioning and deploying tall, heavy drilling mast prospecting for water, gas or oil comprises multi-axle trailer with hydraulic system |
-
1949
- 1949-11-22 GB GB29865/49A patent/GB675003A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6381059B1 (en) | 1999-11-03 | 2002-04-30 | Steven A. Carlson | Optical shutter |
US6583916B2 (en) | 1999-11-03 | 2003-06-24 | Optodot Corporation | Optical shutter assembly |
FR2849098A1 (en) * | 2002-12-20 | 2004-06-25 | Cie De Forage Cofor | Unit for transporting, positioning and deploying tall, heavy drilling mast prospecting for water, gas or oil comprises multi-axle trailer with hydraulic system |
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