DE231640C - - Google Patents
Info
- Publication number
- DE231640C DE231640C DENDAT231640D DE231640DA DE231640C DE 231640 C DE231640 C DE 231640C DE NDAT231640 D DENDAT231640 D DE NDAT231640D DE 231640D A DE231640D A DE 231640DA DE 231640 C DE231640 C DE 231640C
- Authority
- DE
- Germany
- Prior art keywords
- spring
- crank
- drill
- drilling machine
- fulcrum
- 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.)
- Active
Links
- 238000005553 drilling Methods 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 241000131971 Bradyrhizobiaceae Species 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/06—Means for driving the impulse member
- B25D11/12—Means for driving the impulse member comprising a crank mechanism
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE231640C true DE231640C (en:Method) |
Family
ID=491731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT231640D Active DE231640C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE231640C (en:Method) |
-
0
- DE DENDAT231640D patent/DE231640C/de active Active
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