File:12-in-Disappearing-Carriage-1896.jpg
Size of this preview: 800 × 511 pixels. Other resolutions: 320 × 204 pixels | 640 × 409 pixels | 1,024 × 654 pixels | 1,280 × 817 pixels | 2,100 × 1,341 pixels.
Original file (2,100 × 1,341 pixels, file size: 477 KB, MIME type: image/jpeg)
Summary
| Description | English: This is a 12-inch gun M1895 on a disappearing carriage, M1896. Note: The gun is shown here in the "from battery" position, with its breech lowered (for loading) to a level just above the gun platform. After loading, the tripping lever (seen here slanting back and down from the front of the carriage) was released, letting a 9 foot tall, 82-ton pile of lead weights (the counterweight) descend into a pit beneath the carriage, and rotating the gun, suspending from the two massive gun levers, up and forward so that its muzzle rose above the parapet for firing. After firing, the gun's recoil was damped primarily by the two large recoil cylinders, one on each side of the top carriage, and also by the work of lifting the counterweight back into position, where it was held until the tripping lever was released again. The two long bars running back to the carriage from near the breech of the gun are the gun arms, which guided the breech during recoil and were used to elevate the gun. The bright white object at top center-left is the telescopic sight for the gun, covered by a protective tarp. The soldier sighting the gun did so from the catwalk on the top left side of the piece. From here he could control the motors that traversed the gun carriage and changed the elevation of the gun. He could also fire the gun electrically. |
| Date | Uploaded on 2011-05-06 |
| Source | The image has been edited for Wikipedia by adjusting brightness and contrast and sharpening the details. Digital file provided by the Coast Defense Study Group. |
| Author | Coast Defense Study Group |
Licensing
|
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use. |
 |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2010-07-15 14:28 Pgrig 2100×1341× (488662 bytes) This is a 12-inch gun on a disappearing carriage, M1896. This is the type of gun emplaced at Fort Heath in Winthrop, MA and at Fort Warren on Georges Island in Boston Harbor. The bright white object at top center-left is the telescopic sight for the gun,
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:18, 6 May 2011 | | 2,100 × 1,341 (477 KB) | File Upload Bot (Magnus Manske) | {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|This is a 12-inch gun on a disappearing carriage, M1896. This is the type of carriage emplaced at Fort |
File usage
The following 9 pages use this file:
Global file usage
The following other wikis use this file:
- Usage on arz.wikipedia.org
