Improvement in Ships' Rudders.
Year: 1898

page_text: THOMAS VERNON TREW, 232, Lordship Lane, Dulwich, S.E. I do hereby
declare the nature of this invention to be as follows:-
To enable a rudder to be lifted and removed, without disturbing the rudder-
head or stock.
The rudder is made separate from the head or stock, and the invention con-
sists in the improved method of connecting the rudder to the head. For this
purpose the lower end of the head or stock, is forged with a fork projecting aft,
into which the upper part of the rudder enters, as it is being shipped into
place. The rudder-head or stock and the rudder then become as one, and can
be turned about by the machinery on deck in the ordinary way. The rudder
is held in its place in the usual manner with pintles & braces. A large bolt can
be passed through the fork & rudder, if thought necessary for greater security.
Dated this 20th day of September 1898.
Improvement in Ships' Rudders.
I, THOMAS VERNON TREW, 232, Lordship Lane, Dulwich, S.E., Gentleman,
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: -
This invention relates to improvements in ships' rudders, the object being
to enable the rudder to be lifted and removed without disturbing the rudder head
or stock. The rudder is made separate from the head or stock, and the inven-
tion consists in the improved method of connecting the rudder to the head. For
this purpose the lower part of the head or stock is forged with a fork projecting
aft into which the upper part of the rudder enters as it is being shipped into
place.
The rudder head or stock and the rudder then become as one and can be
turned about by the machinery on deck, in the ordinary way. The rudder is
held in its place in the usual manner with pintles and braces.
For the purpose of illustration, I will now refer to the annexed drawings in
which:
Figure 1 is a side elevation showing my invention.
sation through line Y V in Figure 1

page_text: a is a rudder blade which is provided with pintles b which engage in the
socket pieces c.
d is known as a head and is provided with the forged piece e
which is forked as shown. The top of the rudder blade a passes between the
sides of this fork e and may be if desired provided with the shoulder pieces f
so arranged as to prevent the opening of the fork e when the rudder is in use.
By this arrangement it will be seen that the necessity of removing the head
when it is required to remove the rudder blade is avoided. The removal or
shifting of the head is a serious objection owing to the necessity of removing,
in the case of steam steering gear, the various parts. I am aware that various
other arrangements have been employed for the purpose of enabling the rudder
blade to be removed from the head, without necessitating the moving or shift-
ing of this head.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is: :―
1. In means for enabling rudder blades to be removed from the head the
employment of a fork upon the head, into which the rudder blade engages, in
combination.
.
P T
1000