US138652A - Lyman hunt - Google Patents

Description

Steering Appa ratus for Vessels.

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deck of a vessel.

UNITED STATES LYMAN HUNT, OF BUFFALO, NEW YORK, ASSIGNOR OF ONE-HA RIGHT TO MARCUS M. DRAKE.

IMPROVEMENT IN STEERING APPARATUS FOR VESSELS Specification forming part of Letters Patent No. 138,652, dated May 6, 1873 applica-ti I I April 5, 1873. l i

To all whom it may concern:

Be it known that I, LYMAN HUNT, of the city of Buffalo, in the county of Erie and State of New York, have invented certain Improvements in Steering Apparatus for Vessels, of which the following is a specification:

My improvements relate to thatnclass of steering devices in which the rudder is actuated by a horizontal screw-shaft arranged near the upper end of the rudder-post; and the invention consists of an arrangement by which the same screwshaft that operates the rudder is actuated by a rear steering-wheel, or by a wheel arranged in the forward part of the vessel either, as may be required.

In the accompanying drawing, Figure 1 is an elevation, and Fig. 2 a plan view, of my improved steering apparatus.

Like letters of reference designate like parts in both of the figures.

A represents the main, and B the upper, Q is the rudder-post, and D the horizontal steeringshaft arranged above the upper end thereof for turning the same. The shaft D is provided with a steering-wheel, E, and connected with the rudderpost by means of any suitable mechanism. As shown in the drawing, the latter consists of a longitudinally-divided screw-box or nut, the two halves, F F, of which are moved in opposite direction between guides G by diamond shaped projections arranged on the shaft D. The movement of the boxes F F is transmitted to the rudder-post by means of bolts h projecting downwardly from the former and engaging in the slots of a crosshead, I, secured to the upper end of the rudder-post. This apparatus is commonly known as the diamond screw device. The steeringshaft and wheel D E and mechanism connecting the same with the rudder-post compose the aft or stern steering apparatus, all being arranged immediately above and in front of the rudder-post. K represents the forward steering-shaft arranged in a wheel-house near the quarters of the vessel. It is supported in bearings l, and provided with a steeringwheel, L, as usual.

blocks, which results in a corres PATENT Or M represen a drum, pulley, or chain-wheel mounted the rear wheel-shaft D, and N a similarl I chain or cable passing over both? ulleys, M and N, so as to transmit the mo; on of the forward steering-shaft K to the shaft D. The chain or cable n, u be endless, as shown in the drawing, 0 consist of two parts, the ends of which are vound upon the pulleys M and N from opp site sides. 0 0 represent sheaves or rollers, b which the chain or cable a is guided betwe n the pulleys M and N.

I am aware that previous to m. l invention the rudder has been operated fror a forward steering-wheel by chains or cab s passing over blocks and connecting with, tiller or arm secured to the rudder-post This device is objectionable, for the rea n that in sea-going vessels it necessitates t e employment of an additional and indep I dent rear steering apparatus, which can be; esorted to when the forward steering apparat, s gets out of order. l

In my improved steering devic; I the chain it connects the forward wheel-sha K directly with the rear steering mechani ju thereby dispensing with the expense of th tiller and connecting parts. I

When great power is required 1 or operating the rudder it can be readily tained in my improved apparatus by increa ng the diameter of the rear chain-pulley ing the size of the forward chai pulley N, the friction of the operating part i being the same in all cases, while in the orc nary tiller device greater power can only b1 obtained by increasing the number of pu ys in the uding increase of friction.. The objection ble slackmotion of the tiller is also obviate j in my improved device. 1

The entire steering apparatus rendered more firm and reliable by sup rting the rear steering device, which is use in rough weather and emergencies on the ain deck,

while in the tiller device the rear steering apparatus is secured to the lighter timbers of the upper deck, as the tiller and connecting parts occupy the space near the rudder-post forth. above the main deck.

I claim as my invention The combination, with the rudder-post, rear steering-shaft D, and hand-wheel E, of

the pulleys -M N, forward: steering-shaft K, hand-wheel L, and chain or cable n, substantially as and for the purpose hereinbefore set LYMAN HUNT. Witnesses:

JOHN J. BONNER,

WM. H. JENKINS.

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