Steering Apparatus, Patent Model


"My invention relates to a contrivance to assist the helmsman in swinging the rudder laterally against the resistance offered by the water," James Davies wrote in 1877. "It consists in the combination of a pivoted cylinder containing a spring and a piston, the latter connected with the tiller." When the tiller is turned, and the rudder encounters pressure from the water rushing past it, Davies's spring and piston counteract the water's force. Because the device does not work when the vessel is backing-the spring would work with the pressure of the water rather than against it-Davies provided a pin along the side of the cylinder to block the spring.

James Davies was a resident of Liverpool, England. He may also have patented this steering gear in the United Kingdom.

Date Made: 1877Patent Date: 1877-08-28

Patentee: Davies, JamesInventor: Davies, James

Location: Currently not on view

Associated Place: United Kingdom: England, Liverpool, Liverpool

Subject: Patent Models


See more items in: Work and Industry: Maritime, America on the Move, Transportation


Exhibition Location:

Data Source: National Museum of American History

Id Number: TR.308555Catalog Number: 308555Accession Number: 89797Patent Number: 194,658

Object Name: steering apparatus, modelpatent model, steering apparatus, marineObject Type: Patent ModelOther Terms: steering apparatus; patent model, steering apparatus, marine; Maritime

Physical Description: brass (lever and piston material)wood (base material)Measurements: overall: 8 in x 5 1/2 in x 2 1/2 in; 20.32 cm x 13.97 cm x 6.35 cm


Record Id: nmah_843805

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