Center and East Walls with Elliptical Culverts in Foreground for Filling and Emptying Locks; Miraflores Locks, Panama Canal

MISSING IMAGE

Material Information

Title:
Center and East Walls with Elliptical Culverts in Foreground for Filling and Emptying Locks; Miraflores Locks, Panama Canal
Physical Description:
Photograph
Donor:
Angrick, Bill ( donor )
Publisher:
Keystone View Company
Place of Publication:
Meadville, PA
Copyright Date:
1912

Subjects

Subjects / Keywords:
Machinery   ( fast )
Walls   ( fast )
Locks (Hydraulic engineering)   ( fast )
Genre:
stereograph
Spatial Coverage:
Panama -- Central America -- Panama Canal Zone

Notes

Abstract:
The walls and machinery dedicated to filling and emptying the Miraflores Locks.
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
Donation:
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 - 2013.2.184
System ID:
AA00015336:00001


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21719-Center and East Wa"ls with Elliptical Culverts in Foreground for Filling and
Emptying Locks; Miraflores Locks, Panama Canal.


In this picture we get a good view of a
side wall and a cross section of the middle
wall, where is shown one of the larger cul-
verts used in carrying the water to fill and
empty the locks. We can realize the amount
of water one of these culverts can hold when
we remember that the larger ones are of
about the same dimensions as the Pennsyl-
vania Railroad tunnels through which the
trains run from Manhattan Island to Jersey
City.
In the filling of a lock the large valves in


the larger culverts, near the miter gates, are
opened, while the valves at the lower gates
are closed. From the upper pool the water
runs through the large culverts into the
smaller lateral ones, ard thence it pours into
the lock chamber through the holes in the
floor. The lock chamber is emptied by open-
ing the valves at the lower end after those
at the upper end have been closed. By this
system of culverts the water is distributed
evenly and without danger of any disturb-
ance to the chamber which is being emptied
or filled.


Copyright i rz, by Keystone View Company.


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