US830356A - Propelling and steering mechanism for vessels. - Google Patents

Description

PATENTED SEPT. 4, 1906.

I N. P. NELSON. PROPELLING AND STEERING MECHANISM FOR VESSELS.

APPLIOATION FILED NOV-9.1905.

M 7 lllli Q Vi tneooes attuned;

UNITED STATES PATENT OFFICE.

NELS P. NELSON, OF FOY, MINNESOTA.

PROPELLING AND STEERING MECHANISM FOR VESSELS- Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed NovamberQ, 1906. Serial No. 286,596.

To all whom it may cancer-10.7.

Be it known that I, NELS P. NnLsoN, a citizen of the United States, residing at Foy, in the county of Beltrami and State of Minnesota, have invented new and useful Improvements in Propelling and Steering Mechanism for Vessels, of which the following is a specification.

This invention relates to propelling and steering mechanism for vessels, and particularly to a propelling and steering system in which a suction and forcing ap aratus is emplofied for drawing water into t e vessel, prefera ly at or near the bow thereof, and discharging the same-forcibly at the stern, so as to utilize the double effects of suction and repulsion to propel the vessel forward.

The object of the invention is to provide asimple and efiective construction of propel- I ling mechanism acting on the aforesaid rinciple for propelling the vessel in either irection and controlling the action thereof to a finedegree and, further, to provide means whereby the discharge-jet may be projected in different directions to effect the steering of the vessel.

A still further object of the invention is to provide a novel construction and arrangement of valve mechanism whereby the flow of water may be controlled to propel the vessel forward or backward.

In the drawings hereto annexed and forming a part of this specification, Figure 1 is a si e e evation of a vessel embodying my invention, a portion of the same being broken away to disclose the internal ropelling mechanism. Fig. 2 is a vertical ongitudinal section, on an enlarged scale, of the flow-pipe,

showing the suction and force pump and the valve mechanism. Fig. 3 is a horizontal section through the hull, showing the arrangement of the suction pipe or tubes and the contiguous end of the forward section of the flow-pipe. Fig. 4 is a detail section on the line 4 4 of Fig. 2. Fig. 5 is a central vertical section, on an enlarged scale, through the rear or outlet section of the flow-pipe and the discharge and steering nozzle.-

Referring now more particularly to the drawings, the numeral -1 designates the hull of a vessel, Within which is arranged a source of supply of a suitable primary fluid impelling medium, the numeral 2 desi mating a conventionally-illustrated rece tac e to contain such medium, which may he in the form of steam, compressed air, or a hydrocarbon fluid, such as ga'solene, the rece tacle constituting in the first instance a boi eror generator and in the other instances a container of suitable character to hold air under pressure or the hydrocarbon.

A motor 3 of suitable construction is mounted in any preferred manner in the vessel and communicates with the receptacle 2 tlrrough a supply-pipe 4. This motor may be in the form of steam-engine, a compressed 7 air engine, or an internal-combustion engine, as desired. Arranged within the motor-cylinder is a piston 5, the rod 6 of which depends vertically and is connected with a piston 7, arranged to operate in a vertically-disposed cylinder 8, said piston and cylinder constituting a suction and force pump driven by the motor 3. The cylinder 8 is in open communication at its lower end with the central portion of the central section 9 of a flow-pipe,

which is completed by inlet and discharge sections 10 and 11 of smaller diameter than sistance to effect a quick stoppage of the same. The forward or suction section 10 is connected with divergently-arranged suctionpipes 12, which communicate at their forward ends with suction-ports 13, formed in the sides of the ,bow of the vessel and through which water is drawn into said suction-pipes through the action of the pump. At the junction of the pipes 10 and 12 a valve 14 is provided to control the flow of water and cut off the same when occasionrequires. A valve 15 is also-provided in the discharge-pipe section 11 for a'similar purpose.

The (lischarge section 11 projects at its rear end through the hull'beneath the stern and terminates in a cup-shaped portion 16, with which communicates a disohargetube or nozzle 17, carrying an inverted-cupshapcd section 18, which is pivotally connected with the said cup-section 16 in any suitable manner, so as to permit the nozzle to swing in an arc of a circle in a horizontal plane in a direction laterally or transversely of the vessel. A vertical steering-rod 1 9 is suitably "oumaled on the vessel and at its lower en in the cup-section 16 and is connected with the cup-section 18 of the nozzle,

so as to effect aturningmovement thereof. The upper end of the rod or steering-post 19 carries a suitable handle or steering-lever 20.

this construction it will be understood that the water discharged with force through the nozzle 17 will force the vessel forward and that by swinging the nozzle 17 in one directn or the other thedischarging jet may be caused to act upon the body of water at different angles upon either side of central line of travel to steer the vessel in either direction. Arranged within the main section 9 of the a I flow-pipe are valve devices 20 and 21, each of which consists of a valve member22, pivoted to swing in either direction upon a pivot bolt or hanger 23, mounted upon the pipe. This a valve member is arranged within a hollow or;

cylindrical shell or casing 24, provided at its inboard end with a port and at its outrection. This permits the valve devicesto'. be ad usted so that the valve members of the board end with 'a port 26. Each shell or casing is formed in its top with'a longitudinal slot 27, which receives the shank of the bolt 23, the shell thus being free to slide longitudinally on said shank as a guide. is movably mounted between the center of the plpe-section 9 and the pipe 10 or 11, as

the case may be, and is adapted to be adjusted through the medium of an e'xteriorly-proectmg rack-bar 28, engaged by an adjustingpinion 29, which may be-turned by any preferred type of operating means (not shown) for sliding the valve-shell toward and from the center of the valve-chamber or flow-pipe I section 9. It will be observed, as shown in full and dotted lines 'inFig. 2, that when either valve-shell is at the limit of its outward'movement the. valve member 22 will control theport 25 and be free to swing outwardly only, while when the valve-shell is ar-.

ranged atthe limit of its inward movement the valve member 22wlll control the port 26 and be freewto swing only in theopposite di- ,valve devices may be regulated to serve as I suction and discharge check-valves to control the fiow of the water in either direction for'propelling the vessel backward or for- Fig-. 2 shows the shell of the valve 20 adqusted to the limit of its inward and the shell of the valve 21 to the limit of its outward ,movement, from which it will be seen that the valve member '22 of the valve 20 will swing rearwardly to open and forwardly to.

close the port 26, while the'corresponding valve member of the valve 21 will swing rear wardly to open the port 25 and forwardly to close said port. Hence upon the. upward movement of the piston 7 the check-valve 22 of the valve device 21 will close to prevent Each shell the inlet of water through the n0zz1e 17,

while the-valve device 22 of valve 20 will open to allow water to be drawn by the suction produced on such, stroke of the piston through the pipes 12 and 10 andinto the pump-cylinder 8. Upon the downward movement of the piston the valve member of valve 20 will close to prevent the water in the chamber 9 and pump-cylinder from flowing forwardly, while the valve member of valve 21 will swing open, allowing the water to be forced through the pipe 11 and thence discharged through the nozzle 17 .to propel' and steer the vessel. When the valve devices are adjusted to the reverse positions, (shown in dotted lines in Fig. 2,) the operation will be just the reverse and the action of the.

pump will draw in water through the nozzle and pipe-section 11' and dischargeit through the pipe-section 10, suction-pipes 12, and ports 13 at the bow to propel the vessel backward or retard its forward speed. By this means the vessel may be completely controlled, and as in operation the water is continuously sucked away from the bow and the formation of ripples prevented and discharged with force at the stern itwill beap-' parent that the resistance of the water at thebow to the propulsion of the vessel will be diminished and a combineddrawing and forcing action instituted to propel the vessel with great power and a diminished commotion of thesurroundin water. i

If desired, ad eating at their inner ends with the central section 9 and opening at theirv outer ends through the sides of the hull, respectively,

ditional flow-pipes communi' between the center and bow and stern porforward ends of the front set opening throughthe side walls of the hull between the center of the hull and the ports 13, while the rear ends of the rear set of pipes will extend through the hull at a suitable point;

between the center of .the hull and stern. This arrangement of the pipes is primarily to enable. the vessel-t0 be 'more readily and conveniently maneuvered, as will be readily understood.

is claimed as new is'- 1. Propelling mechanism for vessels com- Having thus described the invention, what prising a flow-pipehaving suction and discharge etween such portions,- swinging valves disposed respectively between the ortions, a suction and discharge pump and suction and discharge portions, adjustable ported valve shells or casings cooperatin therewith, and means for adjusting said shel s or casings to reverse the action of the valves and adapt either to serve as a suc tion and the other as a discharge valve.

2. Propelling mechanism for vessels comprising a flow-pipe having suction and discharge portions, a suction and discharge pum between such portions, guides upon the ow-pipe, swinging valves pivotally supported by said guides and diaposed respectively between the pump an discharge portions, adjustable ported valve shells or casings coo crating therewith, said shells being rovidc with guide-slots for the passage of t e guides, and means for adjusting said shells or casings to reverse the action of the valves and adapt either to serve as a 1 suction and the other as a discharge valve.

suction and 3. Propelling mechanism for vessels comprising a flow-pipe, suction and dischargepipes communicating with the ends of the ]usting the casings to reverse the action of the valves and adapt either to serve as a suction and the other as a discharge valve.

In testimony whereof I afiix my signature I in presence of two witnesses.

I NELS, P. NELSON. Witnesses:

PETER NELSON, THEODORE NELsoN,

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