Surge Reliever, Patent Model

Description
John E. Jones of Wiretown (now Waretown), New Jersey, invented a mechanism in 1870 to relieve strain on anchor cables. This is his patent model for the device, which employs rubber springs in a pivoting frame as a surge buffer. "This is a most durable and efficient arrangement for" preventing damage from strained cables, he argued, "and its advantages will be readily understood by all sea-faring men."
Strong, rot-resistant iron chains increasingly replaced natural-fiber anchor cables beginning in the 1850s, and by the 1870s they were almost universal on larger vessels. Jones's invention responded to the less elastic nature of iron compared to hemp, jute, and manila by providing a way to relieve any sudden tension that might occur in a cable. Jones also patented the use of rubber springs in adjustable lanyards, the patent model for which is also in the collection.
Location
Currently not on view
Date made
1870
patent date
1870-10-04
patentee
Jones, John E.
inventor
Jones, John E.
associated place
United States: New Jersey, Wiretown
Associated Place
United States: New Jersey, Waretown
Physical Description
metal (part material)
rubber (part material)
wood (part material)
Measurements
overall: 9 1/4 in x 4 in x 4 in; 23.495 cm x 10.16 cm x 10.16 cm
ID Number
TR.308553
catalog number
308553
accession number
89797
patent number
107,917
subject
Patent Models
See more items in
Work and Industry: Maritime
America on the Move
Transportation
Data Source
National Museum of American History

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