Size of this preview:
535 × 600 pixels. Other resolutions:
214 × 240 pixels |
560 × 628 pixels.
Original file (560 × 628 pixels, file size: 62 KB, MIME type: image/jpeg)
 | This is a file from the
Wikimedia Commons. Information from its
description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: Image from patent of electrical switch invented by AJ Bowie, 1906. From the original document:
Application filed January 23, 1906. Serial No. 297,433. To all whom it may concern, Be it known that I, Augustus J. Bowie, Jr., a citizen of the United States, residing in San Francisco city and county, State of California, have invented certain new and useful Improvements in Electrical Switches; and I do hereby declare the following to be and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. This invention relates of electric switches; The object of the invention is to provide a switch which shall be durable and shall promptly and surely destroy arcs formed at a complete and perfect break in the circuit to be interrupted…. |
| Date | 1906-01-23, published 1914-09-15 |
| Source | https://encrypted.google.com/patents/US1110374 |
| Author | Augustus Jesse Bowie / US Patent Office |
Licensing
|
This work is in the
public domain in the
United States because it was
published (or registered with the
U.S. Copyright Office) before January 1, 1929.
 Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional
copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:21, 6 March 2017 |
| 560 × 628 (62 KB) | DuendeThumb | User created page with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
