US1858046A - Rudder post attachment - Google Patents

Description

May l0, 1932. R. HILL. 1,858,046

RUDDER POST ATTACHMENT Filed Aug. 26, 1931 I 2 sheets-sheet 1 mgl,

' ATTORNEY.

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May l0, 1932. R, HlLL RUDDER POST ATTACHMENT Filed Allg. 26, 1931 2 Sheets-Sheet 2 ATTORNEY.

Patented May l0, 1932 ROBERT' HILL, OF OAKLAND,- yCALIFORNAL nU-DDER PosT ATTACHMENT This invention relates to rudder post attachments, and more particularly to attachments for the rudder post of ships to fill the space between the rudder post, and the rudder stock, and the object of the invention is to provide an attachment to the rudder post whereby the spaces between the rudder post, and the rudder, and between the pivot bearings of the rudder, will be filled so that the water thrown back by the propeller will not deflect through these spaces, whereby the et'iciency of the rudder is improved.

Another object of the invention is to provide a device of this kind to shield the spaces between the rudder post, and the rudder, which may be removed readily whenever it becomes necessary to unship the rudder.

Another object is to provide a device of this kind of strong and simple construction.

Other objects will appear to those skilled in the art to which it appertains as the description progresses.

An embodiment of the invention is shown in the accompanying` drawings in which the same reference numeral is applied to the same portion throughout the several views and of which there may be modifications:

Figure 1 is a view of a portion of the stern frame of a ship, including the rudder post.

Figure 2 is a section taken on line 2-2 of Figure 1 showing the attachment in position.

Figure 3 is a modified form shown in section, in about the same position as that of Figure 2.

Figure 4 is still another modified form of the attachment shown in the same position.

The numeral 1 indicates the stern frame of a ship. The portion 2, of the frame is the rudder post in which the rudder 3, is mounted. The rudder consists of the stock 4, the pivot or hinge-members 5, and plate 6.

The hinge members are hung on what are called, in navigation terms, pintles 7, on the supports 8, of the rudder post.

The portion of the pintle having a bearing in the supports 8, are 'tapered and have suitable bushings, and a plate 9, acts to hold the bushings in place. The rudder is lifted up with thefpintlesv'to Vclearlthe sup-1 l ports'Y when -it is required'toremove'the rudder, and? this lactionx :requires 1 ,the space f A clearance Ifor the hinge member, and this Space ris a disadvantage in theurunningfofships onv accountof the swift`- currents,-and1 eddies thatflow through the space romthel propeller 10. f

- The "steering: 1action iof the rudder yis' rep-4 duced'in efficiency by these spaces, and toA remedy fthis,-thel attachment plate 11`,.bentl U-shaped and proj ectingxinto `the space to practically `fill it, isf clamped.I on therudder post 2, by means of bolts 12. A suitable filler 1' 13, of'wood isused.toi'increasetthestrength '34 of the plate 11,*.bolts 14,1retain`I the filler.

A rounded upy member 15, ofwood assists inreducing the eddyY currents varound the'. rudderpostand is held in place byboltslf. r`

- In the form of the invention shown in' Fig-.l ure 3,A no filler is used,y Orfend-Strip, the ULA shaped attachment 17, being clamped-on the'-v rudder post by the boltsy 18. 1

Inftheformf.V shown in Figure 4, the U- shaped welding as at 20, but is inclosed top and bottom by plates 21. In all the forms of the invention the attachment vcan be removed easily as will be understood by those familiar with this construction.

It will be seen from the above that a very simple and effective means for the purpose has been evolved.

Having thus described my invention what I desire to secure by letters patent of the United States is as follows but modifications may be had in carrying out the invention as shown in the drawings and particularly member 19 is held in place by spot SGL described form thereof within the purview of the annexed claims:

I claim:

1. A rudder post attachment of the class described comprising a ship having a rudder post, a rudder, hinge members Jfor said rudder post and said rudder, detachable means for filling the space between the rudder post, the rudder and the hinge members.

2. A rudder post attachment of the class described comprising a rudder post on a ship, a rudder on said ship,

hinge members adapted to pivot said rudder on said rudder post, detachable means for filling the space between the rudder post, the rudder, and the hinge members, said means being attachable to the rudder post.

3. A rudder post attachment of the class described comprising a U-shaped member adapted to be attached to the rudder post, and having its closed end project adjacent the rudder stock. Y

4. A rudder post attachment of the class described comprising a ships rudder post, a rudder, hinge members connecting said rudder to said rudder post, a detachable shield to fill the space between the rudder post, the rudder andthe hinge members.

5. A rudder post attachment comprising a plate bent to formside members and a closed en said side members being adapt ed to be clamped to the rudder post, and the closed end projecting into the space between the rudder post and the rudder.

6. A Vrudder post attachment of the class described, comprising a ship, propelling means for said ship, a rudder post outside of said propelling means, a rudder pivoted on said post, and detachable means for filling i i the space between said rudder and der post. Y i i 7. A rudder post attachment comprising a ships propeller frame including a rudder post, a rudder supporting means on said rudder post, a rudder including a stock, hinge members on said rudder, pintles for connecting said hinge members to said supporting means, and detachable fillers for the space between said stock, the rudder post, the hinge members, and supports. A

ROBERT HILL.

said rud-

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