US526930A - Half to walter h - Google Patents

Description

(No Model.)' Z'Sheets-Sheet 1.

D; M. MAXON. VESSEL STEERING GEAR.

N0. 5Z6,93 0. Patented Oct. 2, 189.4.

P I 7" L a 7 ATTEST' J J fig-2 1, 'INVENTOR WNW-W Jana 1/ 1 I (No Model.) 2 Sheets-Sheet 2.

D'. M. MAXON. .VESSEL STEERING GEAR.

Patented Oct. 2, 1894.

a SQ x 1 In.

M y j i f T UN-iTE STAT PATENT 4' OFFICE DANIEL.

,To all whom it may concern:

VESSEL;STEERlNG-GEAR.

MABSHMANiMAXON, or BA? CITY, MICHIGAN, 'Assicnon oF-onn HALF T WALTER-H. WHITTEMORE, or SAME PLACE.

- K srncrrrca'rroiv forming part of Iietters ma No. 526,930, datedOctOber 2,1894.

' Application iiledNovember l4rl893. Serial No. 490,923. (K013101181) Be it known that I, DANIEL MAR's nAN MAXON,a citizen 'of the. United States, residing atBay-Oity, in .the'county of Bay and State of Michigan, have invented certain new and useful Improvements in Vessel Steering- Gear,.of'w-hich the following is a specifica=' tion, reference being bad therein to the' accompanyingdrawings;

' struction of a steering gear comprising a power cylinder to which steam or other fluid is adapted to be fed to actuate the same, a

nection between the valve and wheel; furment of the connecting mechanism between the wheel andpower cylinder, the valve and the rudder, wherebyincase the power de-T vices b'reakEor become inoperative for-any,

reason, the wheel may .the rudder; The invention still be used to operate further consists "in the peculiar construction of the valve, and further in the construction,arrangement and cornbination of the various parts. p

proved apparatus.

of thepower cylinder and the connections to 3 Fig, 3 is a horizontal section In the drawings, Figurel is a plan of my im- Fig. 2 is a front elevation the rudder.

"' through the cylinder and power valve. Fig. 4

is a-similar section Fig.- 5 1s an enlarged sectlon.

"as mwFiga-dx opens the exhaust from one end of the cylin der thereby shifting the piston and-the movement of the piston automatically returns the valve to its initial position, balancing the piston in its new position thereby not only serving to actuate the rudder but to hold it fixed at every point of its adjustment.

A is the rudder; B, the post; 0, the quadrant thereon; a lover or arm extending forwardly from the quadrant and forming The inventionconsists' in the peculiar com" valve controlling the fluid supply and conther in the peculiar construction and arrange-- the actuating arm or lever for operating-the made}? v ,E is the usual wheel in the pilot house or any other suitable point, which is provided witha hub about which the cablesF F are wound in opposite directions. These cables extend over suitable sheaves to the stern of the boatwhere they are provided with loops G and G respectively, which pass over sheaves H H, which are secured to the arm D. From thence they pass over suitable sheaves into proximity to the power cylinder and there they are formed into loops I I, which pass respectively over the sheaves J J, which'are secured to the frame K, attached to the ends of the stem L, which extends both ways from the valve M in the valve cylin der N. i

The frame K is formed of rigid material and spans the valve casing, its outer end being rigidlyconnected to the opposite ends of the valve stem L, so that as the frame is moved, the stem and its valve are correspondin'gly moved, the extent of the movement being limited by the extent of the movement of the valve.

0 is the power cylinder in which is the piston 0' from which extends the piston rod P through both. ends. 7 P are cross-heads on the ends of the piston rod and P are guide rods secured to the ends of the cross-heads and serving to guide it in guide ways formed on the sides of the power cylinder. v

Q Q are cables or chains secured at one end to the cross-heads and at their other ends secured (from opposite sides) to the a quadrant passing over suitable intermediate sheaves, sov that motion of the piston in its cylinder in either direction will correspond- .ingly move the rudder.

The valve cylinder is provided centrally with an inlet port a communicating with any source of fluid supply under pressure. Gentrally around the valve M is an annular passage of sufficient length so that when'the valve is in its normal central position, as shown in Fig. 3, the passage way b will connect into the ports 0 c which connect respectively to opposite ends of the cylinder 0.

The valve is provided with the tubular too heads at having'a series of restrictedapertures e therein, adapted to be registered with the ports c which form exhaust ports through the valve and connect the cylinder-through the exhaust chambers f with the exhaust pipe g. This exhaust pipe-is provided at some suitable point with a restricted port or. passage Way h which I preferably form so that it may be adjusted. This may be aceomplished asshown in Fig. 6, by means of a screw 1; extending across the'exit pipe 9 and adapted to be adjusted more or less therein.

The parts being thus constructed theirop; eration is as follows: In Fig. 3 .-the valve and piston are shown in their normal position 1 with the rudder in its central position. It will be seen by inspection of this figure that the valve is located centrally of thevalve chest and thesteam from the boiler can pass through the port a, through the annular port 6 around the valve and to the opposite ends of the cylinder through the ports a c, balancing the pressure upon opposite sides of, the piston. Now if it is desired to change the course of the dinary manner.

boat, the operator turns the wheel in the orthe directionof the arrow Fig. 1') will draw upon the cable F and slacken the cable F cor- --respondingly, the sheaves H- H' remaining stationary. The cables will run over. those sheaves without affecting the rudder, while ithe sheaves J J will be shifted laterally by the movement of the cable, which will shift the valve in the valve chest to the position shown in Fig. 4." This connects the right hand end of the cylinder with the exhaust pipe through the ports e and maintains theleftjhaud end of the cylinder in communication with the steam-pressure.- The result will @be that the piston will be moved to the right correspondingly turning the rudder" through the chains Q Q. Now if the wheel be stopped after a short movement the shifting of the piston, and through the connection described,- the cross- -heads P will shift the valve M'cbrrespondingly through the loops I I and sheaves J J for it will be evident that if the cables at the wheel end are held firmly and the cross-heads P are moved it can only be accomplished by a lateral movement of the valve'through the connections described. As soon as the valve has been moved in this manner to its middle position, the exhaust will be cut-'ofi and steam pressure will be applied'to the opposite sides of the piston which will hold it in its adjusted position.

the connections of thecables described will permit of the operatingof the rudder from the wheel without in any way changing the same. This is accomplished by the necessarily limited movement of the frame K which iscarried by the valve stem L. As one of the cables is wound on the drum and the other slackened, the frame K will be checked in its movement by the limited play of the rod L and thereby form a fixed fulcrum, over which The wheel being turned in located,va controlling valve for In case the-steam' should be-shut ofi from the power cylinder,

the cable 5tss ss.,. The continued' drawing movement of the cable will necessarily move thecross head and thereby the rudder. This construction and arrangement 'of parts en-' ables me to apply mydevice without any particularchange to boats a ready equipped with the hand steering apparatus, without inter-I v fering withthe ordinary use of such hand -steering apparatus when desired and yet give anexceptionally efficient steam steering apparatus.

rBy restrictingthe' eXhaust'I makemovement of the rudder steadier and prevent the possibility of racing of the piston and the ftoo sudden shifting of the rudder. v

iWhatI claim as my invention is I 1. In asteering gear, the combination power cylinder, a piston. therein, a valve to control said piston having supply ports toadmit pressure to both sides of the piston at the 1 same time, connections from the oppositeends of the piston to the rudder, a steering wheel, connections from the wheel to the op- .posite ends of the valve and the piston, sub- 1 1 stantially as described. 4

the same, a cylinder in which said piston is the cylinder having supply ports for admitting equal 2. In a steering gear-{the combination with the rudder, oflapo'w'er piston for actuating 'pre'ssureto, both sides of the piston-fa re-u strictedexhaust passage from the cylinder," and a wheel for actuating the, valve, substantially as described.

3; In asteeringgear,thecombination with" a wheel, a rudder, and a valve controlled power cylinder, of, cable connection from the wheel on opposite sides, sheaves on the tiller on which said cableis looped, sheaves on the valve operating bar over which said cable is looped, and a piston rod extending both sides of the piston to the ends of which the oppo-, site ends of the cables are secured, substantially as described. l e

4. In asteeringgear, the combination-of a power cylinder, a piston therein, connections 'from the piston to the rudder, avalve chamber,a valve having ports adapted 'to admit ends of the valve chamber, a plate connecting the opposite ends of the rod beside the valve chamber, sheaves on.the plate, and cables' from-the rudder passing in opposite directions aroundthe sheavesand connected to opposite ends of the piston rod of the .power piston, substantially as described. v

1 5. In a steering gear, the combination of a power cylinder, a piston therein connected from opposite sides to opposite sides of the rudder quadrant, a valve controlling the admission of fluid to the cylinder, a wheel, and

connection from the Wheel to the rudder, valve and piston,

whereby the wheel may be used to operate the valve or the rudder, substantiallyas described. r 6. In a steeringgear, the combination of the v I 5 steam to both sides of the piston at the same time, a piston rod extending through both p owercylinder, ayalvechamber, the valye lntestimony whereof I affix my signature in M therein, haying tubular heads d provided presence of two witnesses.

' with a. series of restricted ports e ports conv Q trolled by the val've to admit steam to both DANIEL MARSHMAN M N' 5 ends of the'eylinder atthe same time,'and- Witnesses:

CHAS. W. ORTON,.

means for actuating the valve, substantially 1 JOHN B. KANOUSE.

fas described. I

Images