Improvements in Ships' Rudders.
Year: 1898

page_text: Date of Application, 25th Nov., 1893-Accepted, 11th Feb., 1899
Improvements in Ships' Rudders.
I, WILLIAM ROBERT LAWSON, of 24, Belmont Road, Tottenham, Mariner, 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 follow-
ing statement;―
My improvement has special reference to the Letters Patent granted to me
and numbered 25004 of 1895 and should be read in connection with same, as the
improvement hereafter described sets forth another method of supporting
the rudder by which the inverted pintles and bushing of rudder described in my
previous Letters Patent can be brought into use.
In my improved method instead of supporting the weight of the rudder on
projections on the sternpost with removable bearings, I use the projections on
the sternpost which carry the inverted pintles as shown in my previous patent for
this purpose.
Round the pintles and seated on the top of the projections on the sternpost, I
use rings or washers on which the projections on the rudder rest, these projec-
tions being bushed as set forth in my previous Letters Patent.
All the projections on the sternpost, or as many as may be required, may be
furnished with these rings or washers, the projections on the rudder being made
to correspond.
By supporting the weight of the rudder in any suitable manner and unscrew-
ing the nut at tail of pintle, I can remove the pintle, withdraw the ring or
washer and replace them as required.
By removing the ring on top of rudder brace or projection the bushes in the
projections of rudder may be renewed without lifting the rudder or disturbing
the steering gear.
In the drawings annexed hereto Fig. 1 shows a view of a rudder and part of
stern frame, Fig. 2 an enlarged view of the pintles, and Fig. 3 shows a plan of a
bush with ring.
In all the drawings like parts are marked with like letters.
In Fig. 1, A is the rudder and B the stern frame with projections I on the
sternpost carrying the inverted pintle C; the projections on the rudder are
shown K, and the washers or rings which support the weight of the rudder A
are shown F. In Fig. 2, C is the pintle coned at end D with a nut E for drawing
the pintle C into position: F is the loose washer or ring. Thus by slackening
the nut E and drawing pintle C out the washer or ring F can be withdrawn or
renewed without disturbing the rudder A. The bush G is held in position by
the ring H which is on the projection on the rudder A. By lifting the ring H
the bushes G can be withdrawn and renewed without lifting or disturbing the
rudder A. In Fig. 3, G is the bush and H the ring.
Having now particularly described and ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I declare that what I
claim is;
1. The improved method of supporting ships' rudders combined with the method

page_text: of fitting inverted pintles and bushes substantially as described and shown in
drawings.
2. The method of withdrawing any of the pintles or washers and rebushing
the projections on the rudder without unshipping the rudder, substantially as
described and shown in drawings.