File:Spiral-screwdriver.jpg
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Original file (1,088 × 118 pixels, file size: 110 KB, MIME type: image/jpeg)
Summary
| Description |
English: push drill, one of the very few mechanisms that use a screw in the "backwards" sense, to convert linear motion to rotational motion. It has helical screw threads with a very large pitch along the central shaft. When the handle is pushed down, the shaft slides into pawls in the tubular stem, turning the bit. Most screws are "self locking" and axial force on the shaft will not turn the screw. |
| Date | 19 May 2007 (original upload date) |
| Source |
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| Author | Billbeee at English Wikipedia |
Licensing
Billbeee at English Wikipedia, the copyright holder of this work, hereby publishes it under the following licenses:
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
  
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
| Attribution: Billbeee at English Wikipedia | ||
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| This licensing tag was added to this file as part of the GFDL licensing update. |
This file is licensed under the Creative Commons Attribution 2.5 Generic license.
Attribution: Billbeee at English Wikipedia
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2007-05-19 21:25 Billbeee 1088×118× (113120 bytes) Photograph by Bill Bradley. ~~~~ Feel free to use it, just credit me as the photographer. You can contact me through my website [http://www.builderbill-diy-help.com/ my website] == Licensing == {{self|GFDL-no-disclaimers|cc-by-2.5}}
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:05, 23 February 2012 | | 1,088 × 118 (110 KB) | wikimediacommons>老陳 |
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