Improvements in the Construction of Ships' Rudders.
Year: 1894

page_text: Date of Application, 27th Oct., 1894
Complete Specification Left, 12th Jan., 1895-Accepted, 2nd Mar., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Ships' Rudders.
I, JOHN SPEAR, of 2, Boulevard Terrace, Anlaby Road, Hull, Gentleman do
hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in the construction of ships' rudders, and
has for its object to render the stocks or heads of such rudders, greater in strength
and therefore capable of resisting greater strain in proportion to the weight than
heretofore, while at the same time the soundness of the material composing such
rudder-stocks or heads can be more readily ascertained and ensured than formerly
was possible, and the invention consists in constructing the stocks or heads of
vessels rudders of hollow construction, the material composing such stocks or heads
being steel, iron or other suitable metal, according to which is found desirable or
convenient.
Dated this 27th dox of October 1694
HUGHES & YOUNG,
23, Coleman Street, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Construction of Ships' Rudders.
I, JOHN SPEAR, of 2 Boulevard Terrace, Anlaby Road, Hull, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
My invention relates to improvements in the construction of ships' rudders, and
has for its object to render the stocks and heads (either or both) of such rudders
greater in strength, and therefore capable of resisting greater strain in proportion
to their weight than heretofore, and at the same time to enable the soundness of
the material composing such rudder stocks or heads to be more readily ascertained
and ensured than formerly was possible; and the invention consists in constructing
the stocks and heads of vessel's rudders (either or both as aforesaid) of hollow
construction, the material composing such stocks and heads being bronze, steel,
iron, or other suitable metal according to which is found desirable or convenient.
For the purpose of my invention the rudder head and stock (one or both as
aforesaid) may be cast or forged solid, or hollow, and afterwards bored the whole
or any part of their lengths, for the better internal examination thereof, as well as
for the purpose of lightening them, or they may be forged or cast hollow for any
desired length, and left unbored, still affording facilities for internal examination
of such hollow portion, they may also be made in one or more pieces; and the
chambering of the internal or hollow part, may be parallel or varying diameters,
as circumstances may render desirable.
In the accompanying drawings
Fig. 1 is side elevation of a rudder constructed according to my invention.
Fig. 2 is a section on line x. x. from which it will be seen that the part A is of

page_text: applicable for merchant steamers, war ships, or any navigable vessels.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
CLAIM.
1. The construction of rudders for ships or navigable vessels with the head or
stock or both the head and stock cast or forged hollow or solid and afterwards
bored through the whole or any part of the length thereof, substantially as
herein before set forth and described and illustrated in the accompanying
drawings.
Dated this 11th day of January 1895.
HUGHES & YOUNG,
23, Coleman Street, London, E.C., Agents for the Applicant.