US187241A - Improvement in earth-augers - Google Patents
Improvement in earth-augers Download PDFInfo
- Publication number
- US187241A US187241A US187241DA US187241A US 187241 A US187241 A US 187241A US 187241D A US187241D A US 187241DA US 187241 A US187241 A US 187241A
- Authority
- US
- United States
- Prior art keywords
- earth
- augers
- improvement
- blade
- watson
- 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
- 239000002689 soil Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 206010002368 Anger Diseases 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B11/00—Other drilling tools
- E21B11/005—Hand operated drilling tools
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)
- Orthopedics, Nursing, And Contraception (AREA)
Description
G. WATSON.
EARTH AUGER.
N.PETRS. FNOTO-LITHDGRAPKER. WASHINGTDN, D C.
UNITED STATES PTET EET GEORGE WATSON, OF OAKLAND, CALIFORNIA.
IMPROVEMENT IN EARTH-AUGERS.
Specifica-tion forming part of Letters Patent No. 187,241, dated February 13, 1877; application tiled February 21, 1876.
To all whom t may concern Be itknown that I, GEORGE WATSON, of Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Earth-Angers, ot which the following is a specification:
Figure 1 is a perspective view of my improved posthole digger or earth-borer, and Fig. 2 is a view of the blade ot' the same.
The following is the construction of the same: A represents the handle. B B represent the two prongs by which the saine is attached to the blade. (l represents the blade. D represents the curved edge, and E the cuttingedge, which is straight and stands out, forining the outer edge of a volute or scroll and the cuttingedge of the borer.V
The blade C is shown at Fig. 2 in the form of the flat sheet, of which the blade is formed by rolling in a volute form, as shown.
The object of my invention is to avoid the effect of atmospheric pressure in lifting the earth from the hole and to reduce the amount of resistance in penetrating hard soil.
The following is the. operation of the same:
The point is placed upon the ground con.
centric with the position designed for the post. The handle is then turned, and a suitable pressure applied to force the blade into the ground. It enters freely, and when about two-thirds full it is withdrawn and discharged,
and again placed down, When it fills with much less exertion on the part ot' the operator. This time it is filled to the top, when it is readily Withdrawn, the inclined or tapering sides serving the double purpose of' packing the loose sand or earth for lifting out and 'reeing from the sides to relieve the atmospheric pressure.
In case the posthole is not properly centered to receive the post in the required line, the side may be readily shaved or cnt down as with a shovel.
The same effect produced by my improved borer may bo had, but in a less perfect ninnner, by producing only a portion ol" the scroll or volute plate, but I have shown the most complete form for all kinds of soil. It Will take in quite large stones and bring them up with the other material.
The cutting edge may be more or less raised out or the opening made wider to suit the nature of the soil.
Having thus described my invention, I claim- The conical scroll-shaped blade C, having the straight edge E, curved edge D, and spiral open point F, substantially as specified.
GEORGE WATSON.
Witnesses:
JOHN H. REDsToNE, ALBERT E. REDsToNE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US187241A true US187241A (en) | 1877-02-13 |
Family
ID=2256648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US187241D Expired - Lifetime US187241A (en) | Improvement in earth-augers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US187241A (en) |
-
0
- US US187241D patent/US187241A/en not_active Expired - Lifetime
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