US1344622A - Rudder-position indicator - Google Patents

Description

vC. DOVIKEN.

RUDDER POSITION INDICATOR.

APPLICATION EILED MAR. 9, 1920.

PatentedJune 29, 1920.

INVENTOR M iii/4110mm PATENT OFFICE.

CHARLES DOVIKEN, OF BROOKLYN, NEW YORK.

RUDDER-POSITION INDICATOR.

Specification of Letters Patent.

Patented June 29; 1920.

Application filed March 9. 1920. Serial No. 364,559.

To all whom it may concern.

Be it known that I, CHARLES DoviKEN, a subject of the Kingdom of Norway, residing at Brooklyn, county of Kings, city and State of New York, have invented a new, useful, and Improved Rudder-Position Indicator, of which the following is a specification.

My invention relates to improvements in rudder indicators for boats and vessels, whereby the position of the rudder may be readily and easily determined at any time and at any distance from the same.

The object of the invention is to provide a simple and eflicient rudder-position indicator. The same comprises a fluid chamber, a suitable gage .or distant indicating means connected with said chamber by a pipe, and mechanical means connected with the rudder for varying the capacity of the chamber. The gage is of any appropriate character operated by or displaying Variations in fluid pressure or displacement. The fluid chamber is preferably a cylinder and piston, and the mechanical means for varying its capacity preferably comprises an eccentric on the stock of the rudder, with an eccentric strap and eccentric rod connected to the piston; but equivalent devices and arrangements may be substituted. The relation of the mechanical connections to the rudder is such that turning of the rudder from one extreme position to the other, starboard to port, or vice-versa, produces unidirectional action upon the fluid chamber, that is to say, the action is not reversed when the rudder passes central position. Consequently, the eccentric or other device for converting rotary into rectilinear motion is set at an angle to the rudder such as to cause it to act wholly at one side of dead center.

Reference is to be had to the accompanying drawing forming a part of this specification in which it is understood that the drawing is merely illustrative of the invention.

In the accompanying drawings forming a part hereof:

Figure 1 is a plan view with parts broken away and sectioned; and

Fig. 2'is a diagrammatic view.

The numeral 1 designates the rudder of a vessel 2, and 3 the rudder-stock. 4 is an eccentric sheave on the stock, 5 an eccentric strap, and 6 an eccentric rod. The last is connected to the piston 7 of a cylinder 8. In the latter and in a pipe 9 leading to a gage 10 is held a body of fluid, liquid or aeriform.

The cylinder is attached by a bracketll to a suitable support 19. in the vicinity of the rudder stock, and the gage is located where desired, the pipe 9 being of appropriate length and disposition. The gage will be graduated in terms of rudder positions, and, as will be understood, the intervals between graduations may be non-uniform to correspond to the unequal amounts of rectilinear movement produced by equal amounts of rotary movement.

The working arm of the eccentric is at an angle to the rudder, so that it acts at one side of dead center only as the rudder swings between its extreme positions. Thus in Fig. 1, the marks a Z) represent the arc of movement. Thus, all movement of the rudder from starboard to port causes movement of the piston in one direction, while all move ment of the rudder in the opposite sense produces reverse movement of the piston. The variations in pressure or displacement of the fluid are transmitted to the gage and there produce movement of a needle or are made visible in a glass.

Vhile the illustrated example constitutes a practical embodiment of my invention, it is to be understood that I do not limit myself strictly to the mechanical details herein illust ated and described, since obviously the same can be considerably varied without departure from the spirit of my inven tion as herein claimed.

What is claimed as new is:

1. A rudder-position indicator comprising a fluid chamber, a gage, a pipe connection from the fluid chamber to the gage, and a mechanical connection between the fluid chamber and the rudder, the relation of said connection to the rudder being such that turning of the rudder from either extreme position to the other produces unidirectional action upon the fluid chamber.

2. A rudder-position indicator comprising the combination of a fluid chamber, a gage, a pipe leading from the fluid chamber to the gage, an eccentric connected with the rudder stock, and an eccentric rod between the cocentric and the fluid chamber, the relation of the eccentric to the rudder stock being such that turning of the rudder from either extreme position to the other produces unidirectional action upon the fluid chamber.

3. A rudder-position indicator, compris ing the combination of a fluid chamber, a gage, registration conveying means for connecting said cylinder with the gage, a rudder stock connected with an eccentric and an e0 centric rod between the eccentric and fluid piston cylinder, the relation of the eccentric to the rudder-stock being such that the varying turn of the rudder produces unidirectionai action upon the fluid contained Within the piston cylinder.

4. A rudde1'position indicator, comprie ing the combination of a fluid chamber, a gage, a pipe leading from and into the fluid chamber to the gage, and an eccentric connected With the rudder-stock and so related to and connected therewith as to produce upon the turning of the rudder unidirectional actionupon the fluid chamber by means of an eccentric rod between the eccentric and the fluid chamber.

In Witness whereof, I have hereunto signed my name at the city, county and State of New York, this 6th day of March, 1920.

CHARLES DOVIKEN.

Vitnesses Josnrrr M. HERZBERG, VIc'roR C. CORMIER.

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