The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 13, 2005
Filed:
Jun. 12, 2004
John Frayn Ewans, High Wycombe, Buckinghamshire HP12 3AW, GB;
John Frayn Ewans, High Wycombe, Buckinghamshire HP12 3AW, GB;
Other;
Abstract
An instrument for measuring rigger-spread of a boat has an elongate casingfor support athwartships of the boat with a shoulderof the casingabutting the outside of the gunwaleopposite the riggerand a slidingly-adjustable shoulderabutting the opposite gunwale. A measuring tapeis extendable longitudinally from the casingto the oarlockof the riggerto give a reading of spread, the extendable length being limited in dependence upon the spacing between the shouldersof the casingsuch that this length is increased or decreased by half the amount of any increase or decrease, respectively, of that spacing. Limitation of the extendable length involves a mechanism in which the two endsof a flexible stripor wire are secured respectively to the sliding shoulderand the casingso as to define a loop that is caught by a hookof the tapein limiting tape-extension. A modified limiting mechanism involves a step-down 2:1 coupling via pinionsbetween a rackfixed to a sliding shoulderand a rackthat engages a stop pinof the measuring tape