US1071735A

US1071735A - Ice-breaking marine vessel.

Info

Publication number: US1071735A
Application number: US69518512A
Authority: US
Inventors: Benjamin T Haagenson
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-05-04
Filing date: 1912-05-04
Publication date: 1913-09-02
Anticipated expiration: 1930-09-02

Description

B. T. HAAGBNSON.

ICE BREAKING MARINE VESSEL.

APPLICATION FILED MAY4,1912.

1;0'71,'735. Patented se n.2,1913.

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B. T. HAAGBNSON.

ICE BREAKING MARINE VESSEL.

APPLICATION FILED MAY 4, 1012.

1,071,735. Patented Sept.2,1913

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BENJAMIN -T. HAAGENSON, 0F A'SHI'ABUL A, OHIO.

ICE-BREAKING MARINE VESSEL.

Specification of Letters Patent.

Patented Sept. 2, 1913.

Application filed ma 4', 1912. Serial a... 695,185..

To all whom it may concern Be it known that I, BENJAMIN T. IILAAG'. ENSON, a citizen of the United States, residing at Ashtabula, inthe county-of Ashtabula and State of Ohio, have invented a certain new and useful Improvement in Ice Breaking Marine Vessels, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings.

.This invention relates to marine vessels, and especially to that class of vessels used in navigating ice-bound waters.

In waters where icetloes are present, the ice along the pressure line between respec: tice icefloes piles up to a considerable thickness and forms what are known, nautically, as windrcws. These windrows frequently assume such proportions that they stop the progress of a vessel and imprison it so, securely that it,is with considerable difficulty the vessel is released, the use of dynamite or ice tools having to be resorted to. Boats known'as ice crushers have been especially designed to navigate under suchconditions and have been more or less successful in accomplishing this end, but their peculiar design limits their usefulness to a considerable extent.

The zone of contact between the ice'and the vessel extends only a little above and" below-the water line, the horizontal. section of the hull of the vessel, in this region, being substantially wedge shaped. It is obvious therefore, that when the vessel, running on an even keel, rams into the ice with the power of its momentum behind it, the impactwill be of considerable force and as a result the boat will be securely wedged within the ice, resultingin the difficulties already set forth. If however, the boat is rocking at the time it contacts with the ice,

the line of contact will be continually changing, and the-ice will be pushed asideand i degrees of oscillation may be easily and readily imparted to the vessel at will.

my invention applied thereto; Fi 2 is a,

partial side elevation of the hull o a vessel with a portion of the side plates broken away to show another embodiment of my invcntion; Fig. 3 is a sectionalview taken on the line 3-3 of Fig. 2 and looking in the direction of the arrows; Fig. 4 is a transverse sectional view of the hull of a vessel with a modified form of my invention applied thereto,.and Fig. 5 is a view, similar to Fig. a showing another modification of my invention.

I have shown in the drawings, more or less diagrammatically, various means for accomplishing thedesir'ed result and will describe them in the order in whichthey appear in the drawings.

In the embodiment of my invention shown in Fig. 1, I have employed two gyroscopes for imparting to the vessel an oscillatory movement, these gyrosccpes being contained within the hull of the vessel, which I have designated A throughout the several views of the drawings, between the decks B and C. Each gyroscope D is composed generally of a rotor (Z, a shaft (2, and a motor Q 6Z2 all of which are contained within a casing (P. The casing d is provided at its top and bottom with suitable posts or trunnions which are journaled in stationary journal blocks 7) and a, respectively, secured to the decks B and C of the vessel. Such ball and roller bearings as are deemed necessary to insure perfect ease of operation of the various parts of the gyroscope, are employed. The lower part of the casingd terminates in a worm gear d for a purpose which will hereinafter be described.

Situated upon the deck B of the vessel, between the gyroscopes D is a reversible engine E. The shaft e of this engine extends athwartship and has secured to each of its ends a worm e which is adapted to'mesh with'the worm gear d upon the lower part of the casing d of each of the gyroscopes. The angular-inclination of both worms is in the same direction and both worms are I I I C I I o v of the same pitch, causlng a similar precessional movement to be set up simultaneously in both gyroscopes when the engine is operated. This precessional movement of the gyroscopes causes them to impart to the vess'el a reverse thrust on the opposite sides of its keel which results in an oscillating or rocking motion of the vessel. This may be tical position at about the center of the hull A of the vessel. The gyroscope is contained in .the casing F provided with trunnions which are mounted in the brackets b in a manner that, will permit 'fhegyroscope to be swung in a plane coincident with the longgitudinal axis or medial line of the vessel. The gyroscope casing F is caused to swing upon its trunnions by a mechanism designated G, consisting of a worm gear 9 journaled upon a stationary block 9 and having connection with the gyroscope casing through an adjustable crank pin 9' and a connecting rod f. The-worm gear is rotated' by a worm h secured to the shaft h of the engine H. By this construction it will be seen that through the operation of the engine the gyroscope will be caused to swing in a fore and aft direction and cause a precessional movement to be set up within the gyroscope. This precessional movement will produce a transverse thrust of the gyroscope which will be transferred to the vessel through the substantial brackets 6' within which the trunnions of the gyrosco e casin are mounted causin the vessel to rock. As the degree of oscillation imparted to-thewessel is dependent upon either the speed of {the engine or the extent of the throw imparted to the gyroscope by the mechanism G, and since the speed of the.

engine can be varied and the position of the crank ping can be adjusted at the will of the operator, the angular movement of the boat maybe kept under perfect control. In order to realize the maximum influence of a single gyroscope, I propose to locate it as near the center of oscillation as possible, and to swing, its spinningaxis at intervals corresponding to the natural periodicity of the Vessel.

Fig. 4c shows a method of rocking a boat by forcing waterwhioh is contained in tanks located on opposite sides of the vessel from one of the tanks to the other. 1 The tanks l which I have designated I and-I are mounted upon the deck B ofthe vessel, and are connected by a shallow conduit or passage way 2' communicating with each of the tanks near its bottom. I have shown a large compressed air reservoir J, mounted upon the deck C of the vessel and communicating with the water tanks I and I through the pipe j and branches j and j respectively. The reservoir J receives its supply of compressed air from the .air compressor K. 'In- :terposed between the pipe 7' and its branches and j -is a valvej which establishes cominunication between the pipe'j and either of its branches j and j, at the same time causing the other branch to be thrown into communication with the atmosphere. This 'valve is under the control of a mechanism designated L consist ng of an arm Z pivoted at its lower'end to a stationary bracket not shown) and bifurcated at its upper en to receive-a pin at the end of the valve operating lever. The arm Z is swung in either direction by the stem of a pendulum Z which is pivoted at Z to a stationary A'- shaped frame Z The arm Z is provided near its lower end with a crossbeam on which are mounted adjustable stops Z for engagement with the stem of the pendulum.

The operation of this device is as follows: Assuming that the parts are in the .position shown .in Fig. 4:, com ressed air will flow from the reservoir J ti'rough the pipe j. the valve passageway and the branch 7" to the tank I displacing thewater within this tank and forcing it through the conduit z'into' the tank I and causing the vessel to rock toward the right. Through the pendulic action of the vessel the pendulum Z is caused to swing in the same direction, and

in so doing engages a stop carried by the cross-beam of the arm Z, throwing this arm to the right, and causing the valve 7' to be thrown in its alternate position. When in this positiomthe Valve establishes communication between the air, reservoir J and the water tank I through the branch pipe j Immediately the accumulating air pressure within this tank will force the water back through .the conduit 71 into the former tank I and 'cause the boat to rock to that side. In response tothis swinging action of the boat, the pendulum -Z reverses its course and swings back against the left-hand stop of the arm Z causing the reversal of the valve and the repetition of the operation above set forth. By this means it will be seen that an automatic control is provided for shifting the weight of .water from one side of the boat to the other, and the amount of oscillation c'anbe varied bythe adjustment of the stops Z4 upon the cross beam of the arm 2.

In the modification of my invention shown in Fig. 5 I employ an electrical motor driven car M mounted on a transverse curved track Nwvhich is supported above of a gyroscope, and

the upper deck of a vessel by suitable trusswork. The car is provided with suitable reversinglmechanism m which is controlled by push rods m adapted to engage stops n on either end of the track N when the car reaches either of its extreme positions. The car carries a water tank a in which any desired quantity of water may be placed necessary to impart to the vessel, throu h its weight, the desired degree of oscil ation when it travels to either end of its track, A current may be supplied to the motor m through any suitable means as by the wires 0 and the rails 11/ of the track.

Having thus described my invention, what I claim is:

l. The combination, with a marine vessel, ofcontrollable means operating on opposite sides of the keel or medial line for imparting a rocking or oscillating movement to said vessel, and mechanism whereby said means is caused to reverse the direction of its action upon the vessel at regular and predetermined intervals of time.

'2. The combination, with a marine vessel, means for moving its spinning axis in a substantially fixed plane with respect to the vessel and at intervals correspondin tothe periodicity thereof. a The com ination, with a marine vessel, of a plurality of gyroscopes and means, in-

. dependent of the action of the vessel, for

moving their spinning axes in a substantially fixed plane with respect to the vessel and at intervals corresponding to the periodicity thereof.

' of a gyroscope,

of a gyroscope located within the hull of the vessel, a casing within which the roscope is capable of spinning and havlng trunnions extending from its sides the axis of which is at right an les to the spinning axis of the gyroscope, a racket located on each side of the longitudinal center line of the vessel within which is journaled one of the trunnions of' the gyroscope casing, and

mechanism for rocking the gyroscope casing upon its trunnions.

5. The combination, with a marine vessel, of a gyroscope having its spinning axis coincident with the vertical center llne of the vessel, a casing for the gyroscope having trunmons projecting from its sides at right angles to the spinning axis of the gyroscope and extending transverse the vessel and mounted within brackets, and mechanism for swinging the spinning axis of the gyroscope a varied num er of degrees each side of its vertical position.

6. The combination, with a marine vessel,

gyroscope which permits a forward and rearward movement of the spinning axis thereof in a fixed 1 lane with respect to the vessel, and means tor imparting to the axis of the gyroscope, movement at intervals corresponding to the periodicity of the vessel. In test-imon whereof, I hereunto afiix my signature in t e presence of two witnesses.

BENJAMIN T. HAAGENSONL Witnesses:

BRENNAN B. WEST, J. B. HULL.

supporting means for said