US1186210A - Means for reversing screw-propelled boats. - Google Patents

Means for reversing screw-propelled boats. Download PDF

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Publication number
US1186210A
US1186210A US9529016A US9529016A US1186210A US 1186210 A US1186210 A US 1186210A US 9529016 A US9529016 A US 9529016A US 9529016 A US9529016 A US 9529016A US 1186210 A US1186210 A US 1186210A
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propeller
boat
deflectors
reversing
wake
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US9529016A
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John George Aulsebrook Kitchen
Isaac Henry Storey
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/32—Housings
    • B63H20/34—Housings comprising stabilising fins, foils, anticavitation plates, splash plates, or rudders

Definitions

  • the deflectors are totally submerged and transversely inclose the propeller or propellers as nearly as possible but without interfering with the independent and necessary angular movement of either one of the pair, the rear ends of the deiiectors being beveled s o that4 when they are 'both deflected stern-ward to their full extent an inclosed hollow abutment is formed behind each propeller.
  • the defiectors Normally the defiectorslie parallel with the keel and when they are to be used as rudders they can be moved to one side or the other, still remaining parallel.
  • the boat can be steered b the deectors while proceeding stern-war
  • the deflectors are provided with suitable operating gear by which they 'can be moved, in either direction while remaining parallel with one another, so as to act as rudders, or
  • twin flat rudders hitherto proposed could be set to form an abutment in one plane behind the ropeller, or in two planes inclined laterally toward the' propeller behind whereby the re-action of the column of water thrust stern-ward by the propeller, was inefficient owing tothe tendency of the column to spread out laterally at its base.
  • the utmost eiliciency possible is obtained as practically 'no water escapes in a radial direction when the defiectors are closed, Ithe re-action being as desired.
  • the detlectors offer the least possible resistance when going astern, as .well as when 1being used as ruders.
  • Figure l represents the stern part' of a boat in side elevation and'Fig. Qthe same in end elevation.y In these two viewjs the, Iplates forming the abutment and hereinafter termed deflectors are intended to act also as a rudder.
  • Fig. 3 represents the deectors in plan.
  • Figs. 4 and 5 represent end elevation and plan respectively of the Figs.
  • deectors fixed for driving astern.
  • 3 and 7 are similar views of the/.deflectors vKITCHEN, OF LANCASTER, AND ISAAC HENRY STOREY,
  • FIG. 8 shows the deflectors in plan set for steering in one dithe example thereby illustrated, the Ordinary rudder is dispensed with.
  • the abutment' is made (as hitherto stated) of concave plates which are quite suitable to do lduty as a rudder. There are thus in this case, two rudders which remain in parallel relationship for steering purposes while the boat is being driven forward, l,and act exactly in the same manner as a single rudder,
  • S represents the stern part of a boat to which our invention is applied
  • P represents the propeller.
  • the abutmentl consists of the deector d and the degctor d1, the fdeflector a? being fixed to the end of the vertical tubular shaft e and the deector d1, to the end of the cen trai shaft f. These shafts are concentrically arranged and pass through the stern part of the boat being mounted in suitable bearings therein.A lt will be seen that the two deiectors CZ and d1- are exactly alike except that the footlz.
  • each deiiector shown consists of an approximately semi-cylindrical shell with the corners at the front end rounded 0E as at l and at the rear end mitered as at 2.
  • the hollow sides 'of the two delectors face one another directly, the propeller being be tween.
  • Figs. land 2 the two deectors are parallel with the keel and in this position, the boat can be driven forward in asstraight line. If the two deiiectors d andl di are turned together so that they remain relatively parallel, either to the right hand or to the left, they will act in the same way as an ordinary rudder would do and the boat can easily be steered thereby.
  • Figs. 6 and 7 show the deectors CZ and d1 turned to ⁇ the right as they would be when used for steering forward in one direction.
  • Figs. 4 the deectors CZ and d1 turned to ⁇ the right as they would be when used for steering forward in one direction.
  • Vand 5 show the deiiectors el and d'1, closed at their rear ends, the latter formingxa mitered jointln this position the boat w1ll be driven sternward when the propeller is rotated for' forward driving. rlhe maxi- I'num speed sternward will be obtained when the ⁇ two deiiectors -touch one another as shown in Figs. l and 5. lf the rear edges 2 do not close, then the speed sternward will driven against the deflectors d and cil, is not parallel with the keel and will tend to turn the boat around. y
  • Fig. 94 represents in plan, looking from underneath, the stern part of a boat fitted with twin/propellers and deflectors arranged in accordance with our invention.
  • 3 Fig. l() represents a side elevation' of the stern part of the boat.
  • the deectors d and d1 are pivoted in footstep bearings at r,
  • one of the members is not allowed to closey in contact with the keel at its rear end, whereby the tendency to travel in a straight line is modied by the unequal thrust of water on the two defiectors.
  • Figs. l to 8 as to the relative positions of the deiectors for drivingsternward, illustrated by Figs. 9 and 10, and for steering both forward and sternward, apply equally to the example shown in these views.
  • Fig. 11 shows in plan diagrammatically
  • the positions' 5 gf thetwo members of the deectors can be varied at will so as to enable the boat to be steered in a forward direction by moving the hand levers to one side or the other in a parallel manner, or to cause'the boat to move sternward by -moving the levers away from one another, thereby masking ⁇ the propeller behind.
  • the levers are moved so as to close together the two members of the abutment, the boat will travel directly sternward, but if the lever handles are pushed apart unevenly so that the deectors assume a pbsition similar to that shown in Fig.
  • the boat will movesternward in a curveto one side or the other according to which side of the center line the deflectors -miter, or tend-to miter.
  • the delectors are shown in the drawings provided with footstep bearings but these may be discarded this case, the deiiectors would remain parallel with the keel Iwhile the boat is progressing forward. If the ordinary rudder be re'- tained the control of the deiiectors for reversing would perhaps be simplified as when the deflectors are to be used as rudders also, there must be a combined or differential arrangement for controlling the deflectors as such and as rudders actuated by one pair of hands. y
  • the deiectors may be arranged so that each propeller has one at each side as in Figs. 1 and 2.
  • deiectors arranged as shown in Figs. 9 and 10 may be used where there are four propellers.
  • the sternmost pair may have deflectors so arranged', and the forward outer pair of propellers, delectors arranged., as described with reference to igs. 1 and 2.
  • 'Y Y In the adjustment shown in Fig. 3, the abutments Z and d1 are disposed endwise in the water with their edges facing the current and with their larger areas parallel with the current thereby reducing resistance to a minimum.
  • a ship provided with a propeller, a
  • reversing and controlling means comprising propeller, or into a wake enveloping and a hollow body, and means fory adjusting said body into a feathering or partially feathering position ⁇ laterally of the propeller,'. or into a wake enveloping and arresting position behind said propeller, substantially as described.
  • a ship provided with a propeller, a
  • reversing and controlling means comprising a hollow body mounted to swing about a substantially vertical axis intersecting the axis of rotation of the propeller, and means for adjusting said body into a eathering or partially feathering position laterally of the arresting position with respect to said propeller, substantially as and for ,the purpose set forth. ,f
  • a ship provided with a propeller, a reversing and controlling means comprising a rsubstantially U-shaped body having its ends Vmounted for turning movement of said body about an aXis substantially vertical and intersecting the aXis of rotation of said propeller, and means for adjusting said body into a full or partially feathering position or into a trailing wake arresting position with respect t'o said propeller, substantially as described.
  • a ship provided with a propeller, and a controlling and reversing'means comprisling coacting channel-shaped bodies, and means for separating said bodies fromeach other into opposed and lateral relation with respect to the propeller and into feathering or partially ieathering positions in the water, or'into engaged or slightly spaced coacti'ng relation behindand in the wake of the propeller to thereby form a hollow wake enveloping abutment,V substantially as described.
  • a ship provided with a propeller, a controlling and reversing means comprising coacting .channel-shaped bodies mounted to be rotated about a-vertical axis intersecting the axis of rotation of the propeller, and means for separating said bodies from each other into opposed lateral relation withv respect to said propeller and into feathering or partially feathering positions in the water, or into engaged coacting relation bei' hind and in the wake of the propeller to thereby form a hollow wake envelopingA abutment, substantially as described.
  • a ship provided with a propeller, a steering and a reversing means comprising coacting companion channel members shaped to engage each other in edge to edge relation, and mechanism for adjusting said members into engaged or partially open re-j lation with respect to each other and bodily adjusting said members in4 unison in either relation into an abrupt wake abutting relation behind the propeller or into angular positions with respect to the flow of the wake, substantially as and for the purpose set forth.
  • a ship provided with a propeller, a steering and a reversing means comprising coacting companion channel members shaped to engage each other in edge to edge relation, to form a hollow body of miter formation, and means for adjusting said members in unison an in engaged relation with each other into an abrupt wake abutting relation behind the propeller or into angular positions With respect to the iiow of the Wake, substantially as described.
  • a ship provided With a propeller, a holi low steering and reversing element having a concave portion and mounted to swing about a Vertical axis intersecting the axis of mesmo the direction of the boat, or in angular positions on. either side of the propeller to steer the boat, or in feathering lateral positions with respect to the propeller, substantially 15 as described.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
US9529016A 1916-05-03 1916-05-03 Means for reversing screw-propelled boats. Expired - Lifetime US1186210A (en)

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US9529016A US1186210A (en) 1916-05-03 1916-05-03 Means for reversing screw-propelled boats.

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US9529016A US1186210A (en) 1916-05-03 1916-05-03 Means for reversing screw-propelled boats.

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483675A (en) * 1946-06-21 1949-10-04 Garnett G Sheldon Jet flow rudder
US2822183A (en) * 1955-03-18 1958-02-04 William H Montgomery Wheeled propeller sheath
US2916005A (en) * 1956-04-09 1959-12-08 John B Parsons Combined rudder and reverse control for marine craft
US3848561A (en) * 1973-01-15 1974-11-19 W Price Boat
US4631036A (en) * 1983-07-06 1986-12-23 Grothues Spork Hermann Stern fin for single-prop ship
WO1988003891A1 (en) * 1986-11-20 1988-06-02 Mariko A/S Manoeuvring device for boats
US7819711B1 (en) 2006-02-15 2010-10-26 James P. von Wolske Retractable thrust reversing bucket for boat propeller
DE102021120838A1 (de) 2021-08-10 2023-02-16 Offcon GmbH Propellergetriebenes-wasserfahrzeug-ruder-system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483675A (en) * 1946-06-21 1949-10-04 Garnett G Sheldon Jet flow rudder
US2822183A (en) * 1955-03-18 1958-02-04 William H Montgomery Wheeled propeller sheath
US2916005A (en) * 1956-04-09 1959-12-08 John B Parsons Combined rudder and reverse control for marine craft
US3848561A (en) * 1973-01-15 1974-11-19 W Price Boat
US4631036A (en) * 1983-07-06 1986-12-23 Grothues Spork Hermann Stern fin for single-prop ship
WO1988003891A1 (en) * 1986-11-20 1988-06-02 Mariko A/S Manoeuvring device for boats
US4895093A (en) * 1986-11-20 1990-01-23 Dalsboe Ola K Manoeuvring device for boats
US7819711B1 (en) 2006-02-15 2010-10-26 James P. von Wolske Retractable thrust reversing bucket for boat propeller
DE102021120838A1 (de) 2021-08-10 2023-02-16 Offcon GmbH Propellergetriebenes-wasserfahrzeug-ruder-system

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