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File:Detail view southwest of miter gear; note crane jack to right - miter and rack and pinion center top with universal joint at left. - Naval Base Philadelphia-Philadelphia Naval HAER PA,51-PHILA,709F-16.tif

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Photographer
Lowe, Jet
Title
Detail view southwest of miter gear; note crane jack to right - miter and rack and pinion center top with universal joint at left. - Naval Base Philadelphia-Philadelphia Naval Shipyard, 350-Ton Hammerhead Crane, League Island, Philadelphia, Philadelphia County, PA
Depicted place Pennsylvania; Philadelphia County; Philadelphia
Date 1995
date QS:P571,+1995-00-00T00:00:00Z/9
Dimensions 5 x 7 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HAER PA,51-PHILA,709F-16
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: The crane was the largest in the world when it was completed and is a landmark in American engineering. Roller bearings support a large circular gear mechanism located on top of the portal and allow the crane boom to rotate. The boom and cantilevered trolley ways of the crane are supported by an external framework of steel girders anchored to the circular gear. The crane hoists can be racked in or out along these trolley ways...
  • Survey number: HAER PA-387-F
Source https://www.loc.gov/pictures/item/pa3398.photos.359853p
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Object location39° 57′ 07.99″ N, 75° 09′ 51.01″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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Date/TimeThumbnailDimensionsUserComment
current01:47, 1 August 2014Thumbnail for version as of 01:47, 1 August 20145,000 × 3,547 (16.92 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 31 July 2014 (3000:3200)

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