Improved Means of Steadying Vessels under Sail.
Year: 1890

page_text: Date of Application, 2nd Oct., 1890
Complete Specification Left, 27th June, 1891-Accepted, 2nd Oct., 1891
PROVISIONAL SPECIFICATION.
Improved Means of Steadying Vessels under Sail.
We GEORGE FRANK TRIGGS of 10 Pelham Road, Iron Worker, and HENRY
WARD of Cross Street, Iron Worker, both of West Cowes in the Isle of Wight do
hereby declare the nature of this invention to be as follows:-
This invention has for its object to provide self acting means for steadying and
tending to preserve a horizontal position transversely or "athwartships" for boats
or vessels under sail. The mast is not fixed but capable of swinging from side to
side in a collar bearing supported independently of the deck by iron stanchions or
ribs. The foot of the mast is connected to ballast of suitable form and weight
which is arranged to move with the mast when swinging. The shrouds are not
fixed to chain plates as usual but pass down at each side and are affixed to the
ballast being guided by suitable rollers or pulleys mounted in chain plates fixed in
suitable position on each side of the vessel. Thus when wind pressure is trans-
mitted to and acts on the mast it will swing over and assisted by the running
shrouds will raise the ballast in a proportional degree, this will then act as a
counterbalance tending to maintain the hull transversely level and prevent the
vessel "heeling over to the same degree as is usually the case.
We arrange a quadrant and detent or other suitable fastening attached to the
ballast by means of which such ballast may be fixed centrally automatically or
otherwise when required.
Dated this 1st day of October 1890.
•
J. C. CHAPMAN,
Agent.
COMPLETE SPECIFICATION.
Improved Means of Steadying Vessels under Sail.
We GEORGE FRANK TRIGGS of 10 Pelham Road, Ironworker, and HENRY
WARD, Ironworker, of Cross Street both of West Cowes Isle of Wight 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 consists in the arrangement of the masts of boats, and other
vessels for the purpose of steadying the boat or vessel when under sail by allowing
the mast to swing from side to side and the same is carried out in the following
manner reference being had to the annexed drawings. Fig. 1 is a sectional front
elevation. Fig. 2 is a sectional side elevation. The mast a is suitably pivoted in
a collar bearing b which allows it to swing free and independent of the deck. Two
iron staunchions c have two rods d pivotally secured to them at e.
These rods d
carry the ballast or counterpoise which may be of any convenient shape and
material, the foot of the mast being attached to same by means of a bolt g engaging
with a slotted hole in the foot of the mast a. The shrouds i pass over pulleys or
rollers ; secured to chain plates k fixed at convenient positions on the sides of the
boat or vessel. These shrouds i are then secured to the ballast f by any convenient
means such as the rings secured to the ballast f; the backstay m being similarly
treated. The swing of the mast may be regulated by any convenient means such
as a quadrant n, in which a bolt or rod o secured to the ballast f, travels in a slot.
It will be seen that when a squall of wind strikes the sail that by adjusting the
weight of the ballast f, the said mast will swing over, as indicated by the dotted
line, and thus prevent to a great extent the heeling over of the boat.

page_text: Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
(1) In devices for allowing the masts of boats or vessels to heel or swing the
construction arrangement & combination of the various parts, substantially as and
for the purpose described.
(2) In devices for allowing the masts of boats or vessels to "heel" or swing the
use of a pivotally secured mast in combination with pivotally secured and swinging
ballast the movement of the mast and ballast being controlled by a slotted quadrant
or such analogous arrangement substantially as described.
(3) In devices for allowing the masts of boats or vessels to "heel" or swing the
use of a swinging mast and ballast in combination with shrouds running on pulleys
or rollers and secured to the said swinging ballast substantially as described and
for the purpose set forth.
Dated this 27th day of June 1891
E. EATON,
Agent for Applicants.