US8142A

US8142A - Island

Info

Publication number: US8142A
Authority: US
Publication date: 1851-06-10
Anticipated expiration: 1868-06-10

Description

UNITED STATES PATENT OFFICE.

CHAS. F, BROWN, OF WARREN, RHODE ISLAND.

. BALANCED RUDDER.

To all whom it may concern:

Be it known that I, CHARLES F. BROWN, of Warren, in the county of Bristol and State of Rhode Island, have invented a new and useful Improvement in the Rudder Employed in Steering Ships; and other vessels in water, and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1, represents a sideview of part of the stern of a vessel having the rudder at.- tached. Fig. 2, is a full view of the same. Fig. 3, is a horizontal section of the. same taken in the line 00, 09, shown in Fig. 1. Fig. 4, is also a horizontal section taken in the line shown in Fig. 1.

Similar letters of reference indicate corresponding parts in each of the several figures.

My invention consists in the employment of two rudders hung at a distance apart upon the same post, on each side; each of the two being at the same distance from the post, andwith the surfaces of the one parallel or nearly so to the surfaces of the other.

The eifect intended to be produced by hanging the rudders at a distance from the post on opposite sides, is to make the pressure caused by the resistance of the water (as the vessel passes through it). on each rudder balance that on the opposite one, and thus enable the steersman to keep the helm in any position with facility. The posit-ion the rudders occupy, though it allows them to offer the same resistance to the vessels progress, causes them to meet with but little resistance when moved in steering and therefore reduces the amount of power necessary to be applied in steering the vessel.

To enable others skilled in the art to make and use my invention I will proceed Specification of Letters Patent No. 8,142, dated June 10, 1851.

or otherwise. The rudder post is hung on I the stern post in loops or eyes a, or in any convenient way. t

The rudders may have motion communicated to them by any suitable steering apparatus such: as is used with the common rudder. It will be understood by referring to Fig. 3, where the red circle denotes the path described by the edges of the rudders in turning, that as the rudders form chords to the said circle, they will offer but little resistance to the water when moving from vessel which will move in the direction of the red arrow Fig. 4. Both rudders being of the same size, at the same angle to the line of the motion of the vessel, and at the same distance from a common axis the effect of the resistance will be thesame on each, and will not tend to alter the position of the rudders; therefore no eifort is required by the steersman to hold them, whereas with the common rudder the steersman has to hold it against the water. \Vhen the helm is hard a port as shown in blue lines in Fig. 4: the outside face of C, and the inside face of C, act upon the water, the

vessels motion being in the direction of the their surfaces parallel or nearly so with each other in such a manner that the same resistance is offered to each by the vessels motion through the water and both are balanced, substantially as herein described.

. i O. F. BROWN.

Witnesses:

SAMUEL RANDALL,

G. W. CARR.