End of Emergency Dam


Material Information

End of Emergency Dam
Physical Description:
Angrick, Bill ( donor )
Keystone View Company
Place of Publication:
Meadville, PA
Publication Date:


Subjects / Keywords:
Dams--Design and construction   ( fast )
Girders   ( fast )
Walls   ( fast )
Engineering   ( fast )
Spatial Coverage:
Panama -- Central America -- Panama Canal Zone


A view of the end of an emergency dam near the Gatun Locks of the Panama Canal.
Scope and Content:
B. L. Singley founded The Keystone View Company in 1892 in Meadville, Pennsylvania. The company quickly became the world's largest view company, having at least 250,000 negatives (of which some 50,000 were available as numbered views) by the 1930s. These images were meant to bring international experiences into the palm of the average person's hand, to be revisted in private or during social gatherings. It has been said that the ability of the stereograph to bring vicarious experiences to faraway people makes this medium parallel to the internet or television today. The Keystone View Company also focused on the educational value of their products, employing teams of people to write explanatory texts that were printed on the backs of the stereograph cards. This text, along with the imagery, presents the dominant vision of American ideals and interests during the late nineteenth and early twentieth centuries. Source 1: http://www.oac.cdlib.org/findaid/ark:/13030/ft1q2n999m/ Source 2: http://www.yellowstonestereoviews.com/publishers/keystone.html
Gifted on behalf of William P. and Barbara L. Angrick

Record Information

Source Institution:
University of Florida
Holding Location:
Panama Canal Museum Collection at the University of Florida
Rights Management:
Public Domain Presumed (e.g. expiry of copyright term): This item is presumed to be in the public domain. The University of Florida George A. Smathers Libraries respect the intellectual property rights of others and do not claim any copyright interest in this item. Users of this work have responsibility for determining copyright status prior to reusing, publishing or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder.
Resource Identifier:
accession number - 2013.2.188
System ID:

Full Text





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21727-End View of Emergency Dam, Gatun, Panama Canal.

This is the other side and end of the emer-
gency dam described in view 21726. The
operator's house and the pivot on which the
bridge swings are at the far end. In order
to form the dam, the bridge is first put into
position by swinging the end nearest the
spectator across the lock until it arrives at
the opposite wall of the lock and rests upon
it. The wicket girders now seen projecting
from the lowest extremity of the bridge,
hinged within the bridge, and suspended
at their outward extremity on steel ropes
through metal pulleys, are let down to a

vertical position. When lowered they ex-
tend at regular intervals across the width
of the lock, thus forming runways and sup-
ports for metal gates which can be let down
to close up the spaces between the wicket
The gates are nine feet square, resembling
flat cars. Each car runs on two rails which
are, of course, the narrow sides of the gir-
ders. The girders are arranged in pairs and
held together by metal bars running diagon-

Copyright 1913, by The Keystone View Company.

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