IMPROVR- MENTS IN AND RELATING TO SHIPS STEERING GRAB
Year: 1886

page_text: Date of Application, 22nd Jan., 1886.
Complete Left, 22nd Oct., 1886.
Complete Accepted, 21st Jan., 1887.
I JAMES STEWART CLARK of Michaelson Villa Barrow-in-Furness in the County
of Lancaster Shipbuilder do hereby declare the nature of my invention for IMPROVR-
MENTS IN AND RELATING TO SHIPS STEERING GRAB, to be as follows :-
My Invention consists of an improved method of constructing Steering Quadrants
or wheels with springs or buffers so as to relieve the Rudders and Steering gears of
ships from severe shocks at sea.-Drawing No. 1 shows an arrangement with a fixed
tiller having two arms, which are connected by springs to a wheel which works loose
on the rudder stock, the chains leading to Steering gear being connected to said
wheel.
Drawing No. 2 shows an arrangement having four fixed arms, all connected to
loose outer rim by springs.
-
Drawing No. 3 shows an arrangement with a one armed tiller, connected to a
Quadrant working loose on Rudder stock and connected by springs in a similar
manner to Nos. 1 and 2 arrangements, and worked direct from Steering gear by
worm.-This Quadrant may also be worked by chains leading to Steering gear.
Any of the above arrangements may be made with any convenient number of
Arms, all or any number of which may be connected by springs or buffers as shewn on
drawings.
Springs may also be fitted to the ordinary hand or Steam Screw Gear on rods
connecting nuts and crosshead on rudder stock.
AT

page_text: I, JAMES STEWART CLARK Shipbuilder Michaelson Villa Barrow-in-Furness, in the
County of Lancaster, do hereby declare the nature of my invention for IMPROVEMENTS
IN AND RELATING TO SHIPS STEERING GEAR and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:
My invention consists of an improved method of constructing Steering Quadrants
or wheels with springs or buffers so as to relieve the Rudders and Steering gears of
Ships from severe shocks at sea as shown by the accompanying drawings.
Drawing No. 1 shews an arrangement with a tiller or crosshead F, figures 1. & 2.
having two arms, and fixed or keyed on to Rudder stock R, figures 1. & 2.;
Q. figures 1 & 2 is a quadrant or wheel with arms A, figures 1 & 2, and working loose
on Rudder stock R, figures 1 & 2 to this wheel or quadrant is secured a bracket B,
figure 2. holding in position a spring or buffer S. figure 2, said springs being kept in
place by a guide bar or bolt G, figure 2.-this bolt passing through a hole in the ends
of the tiller F, figures 1 & 2.-the chains leading to Steering engine being connected
to the wheel or quadrant Q figures 1 & 2.
Drawing No. 2 shews an arrangement, having a tiller or crosshead F. figures 1 & 2,
fixed to the Rudder head R, figures 1 & 2.-A wheel or quadrant Q is carried on the
outer end of the arms of crosshead or tiller F. figures 1 & 2.-by brackets B.
figures 1 & 2. these brackets holding in position a spring or buffer S.-figure 2,—the
said spring being kept in position by the bracket B, and bolts G,-this bolt passing
through a hole in the ends of the armis of tiller F, figs. 1 & 2.
Drawing No. 3. shews an arrangement having a single armed tiller F, figures 1
& 2, keyed or fixed to Rudder head or Stock R.-figures 1 & 2.-Q. figures 1
& 2 is a quadrant with arms A figures 1 & 2,-and working loose on Rudder
stock R figures 1 & 2 but kept in position by springs or buffers S.-figure 1,-these
springs being kept in position by a rod or bolt G, figure 1, which passes through
the end of fixed tiller F figures 1 & 2 and secured to the arms of loose quadrant Q
figures 1 & 2 P figure 2 is a locking pin which can be put in, in the event of a spring
breaking and having to be replaced. This arrangement shews the quadrant working
direct from engine by worm wheel or screw W. figure 1 and may be applied to any
of the other designs.
Drawing No. 4 shews an arrangement having a crosshead or tiller F figures 1 & 2
with four arms carrying on their outer ends a quadrant or wheel Q figures 1 & 2.-
This quadrant or wheel is kept in position by springs S figure 2.—and by rollers r.-
figure 1.—the rollers to reduce the friction caused by the working of the quadrant or

page_text: wheel Q-the springs are held in place by bolts or rods G figure 1.-the bolts being
secured to outer quadrant or wheel Q figures 1 & 2 by brackets B figure 2.
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 :-
The manufacture of quadrants or wheels for Rudder heads of Ships with Springs or
buffers as shewn on the accompanying drawings.-The said springs may be of Steel,
Rubber, or any other elastic substance.