US166202A - Improvement in derricks - Google Patents
Improvement in derricks Download PDFInfo
- Publication number
- US166202A US166202A US166202DA US166202A US 166202 A US166202 A US 166202A US 166202D A US166202D A US 166202DA US 166202 A US166202 A US 166202A
- Authority
- US
- United States
- Prior art keywords
- brace
- derrick
- derricks
- improvement
- frame
- 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 - Lifetime
Links
- 238000010276 construction Methods 0.000 description 2
- 240000002329 Inga feuillei Species 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/005—Girders or columns that are rollable, collapsible or otherwise adjustable in length or height
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
- E04B2001/1924—Struts specially adapted therefor
- E04B2001/1927—Struts specially adapted therefor of essentially circular cross section
Definitions
- This invention relates to the combination of the derrick-frame and brace in such a manner that the said brace can be adjusted to the derrick-frame, so as to form a support to keep the frame in an uprightposition.
- the construction and operation of the brace is fully described in the following description.
- Figure l is a view of the brace as attached to the derrick.
- Fig. 2 shows the construction of the brace.
- A, Fig. l is the frame of the derrick.
- Said derrick has the two cross-bars B and G framed into it, for the purpose of strengthening the said frame, and form'inga point for attaching the upper end of the brace D.
- Said brace is formed of wood, and is of a suitable length for The upper end of the brace is cut at. an angle, 1', leaving the notch a on the lower edge of the angle, as shown at Fig. 2.
- the hook b On the upperedgeof the brace the hook b is secured in any convenient manner, and allowing the hook to project sutficiently beyond the end of the brace to hook over the cross-bars B or G of the derrick, thus forming a convenient attachment of the brace to the derrick.
- the brace can be attached to the bars at any point, so as to be out of the Way of the work, and when it is not in use it can be quickly removed.
- the brace D with its angle 2', notch a, and hook I) on its upper end, in combination with the derrick A, substantially as and for the purpose as hereinbefore set forth.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Description
- the purpose.
UNITED STATES PATENT OFFICE,-
MARTIN GRAY, OF MENTOR, OHIO.
IMPROVEMENT IN DERRICKS.
Specification forming part of Letters Patent No. 166,202, dated August 3, 1875; application filed February 2, 1875.
To all whom it may concern:
Be it known that I, MARTIN GRAY, of Mentor, in the county of Lake and State of Ohio, haveinvented certain Improvements in Derricks, of which the following is a specification This invention relates to the combination of the derrick-frame and brace in such a manner that the said brace can be adjusted to the derrick-frame, so as to form a support to keep the frame in an uprightposition. The construction and operation of the brace is fully described in the following description.
Figure l is a view of the brace as attached to the derrick. Fig. 2 shows the construction of the brace.
A, Fig. l, is the frame of the derrick. Said derrick has the two cross-bars B and G framed into it, for the purpose of strengthening the said frame, and form'inga point for attaching the upper end of the brace D. Said brace is formed of wood, and is of a suitable length for The upper end of the brace is cut at. an angle, 1', leaving the notch a on the lower edge of the angle, as shown at Fig. 2.
On the upperedgeof the brace the hook b is secured in any convenient manner, and allowing the hook to project sutficiently beyond the end of the brace to hook over the cross-bars B or G of the derrick, thus forming a convenient attachment of the brace to the derrick. The brace can be attached to the bars at any point, so as to be out of the Way of the work, and when it is not in use it can be quickly removed.
What I claim as my invention, and desire to secure by Letters Patent, is
The brace D, with its angle 2', notch a, and hook I) on its upper end, in combination with the derrick A, substantially as and for the purpose as hereinbefore set forth.
MARTIN GRAY. Witnesses:
WILLIAM PETTINGELL, GRANDISON N. TUTTLE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US166202A true US166202A (en) | 1875-08-03 |
Family
ID=2235611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US166202D Expired - Lifetime US166202A (en) | Improvement in derricks |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US166202A (en) |
-
0
- US US166202D patent/US166202A/en not_active Expired - Lifetime
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