US2984200A - Pitch and yaw eliminator for vessels and the like - Google Patents

Pitch and yaw eliminator for vessels and the like Download PDF

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US2984200A
US2984200A US809806A US80980659A US2984200A US 2984200 A US2984200 A US 2984200A US 809806 A US809806 A US 809806A US 80980659 A US80980659 A US 80980659A US 2984200 A US2984200 A US 2984200A
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vessel
bow
water
hull
vessels
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US809806A
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Ernest M Toussel
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/06—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water
    • B63B2039/067—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using foils acting on ambient water effecting motion dampening by means of fixed or movable resistance bodies, e.g. by bilge keels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Definitions

  • the present invention relates to a pitch and yaw elimi nator for vessels and the like, and has for an object to provide a device which may be attached to presently existing vessels such as steam ships, barges, small craft, naval vessels of all sizes regardless of the type of power employed by the vessel.
  • Another object of the present invention is to provide a device of the character described which may be attached to the bow of a vessel requiring a minimum of labor and precision of construction.
  • a further object of the present invention is to provide a device in advance of the hull of the vessel which will first engage the waves or swells of the sea, river or lake to doze or clip off the top portions or crests of the waves and roll this mound of water in advance of the ship whereby the water contacted by the bow of the vessel will be relatively calm and quiet and will also prevent the pitching and yawing action which in a rough sea often exposes the screw of the vessel and removes it from contact with the water.
  • a still further object of the present invention is to provide a device of the character described which will not only act as a fore and aft stabilizer to the vessel, but which will provide a collision impact reduction member which will cushion the vessel against a blow in collision with another vessel to thereby protect the water-tight integrity of the hull of the vessel.
  • a further object of the present invention is to provide a fore and aft stabilizer which will provide a dozer-like effect in advance of the vessel hull without building up any air pressures between the dozer-li'ke device and the hull which would react to form a pneumatic lock.
  • Figure 1 is a side elevational view of a steam ship having the device of the present invention installed thereon;
  • Figure 2 is a side elevational view of the bow of the vessel of Figure 1 taken at an enlarged scale with parts broken away and parts shown in section;
  • Figure 3 is a top plan view of Figure 2
  • Figure 4 is a vertical section taken on the line 44 in Figure 3.
  • FIG. 1 designates generally a dozer-like device secured in place on the hull 11 of a vessel.
  • This attachment is of course at the bow or stem of the vessel.
  • the device may consist of two side plates 12 and 13. These side plates 12 and 13 are given the external configuration similar to the bow construction and as shown best in Figure 4 the plates 12 and 13 extend from the top of the bow to the keel. Openings 14 and 15 are provided between the plates 12 and 13 and the hull. The openings are maintained constant for a particular installation by means of spacer bars or struts 16. These struts 16 may be secured to the hull of the vessel in any suitable manner as by bolting or welding.
  • dozer-like device as employed herein means a surface or member containing a surface positioned to engage the water in advance of the bow of the vessel and to distribute mounds or swells to provide a smooth path for the bow of the vessel following behind the dozer-like device. This action is likened to the scraping blade of a bulldozer which levels orsmooths out or renders dull the surface attacked by the scraper blade.
  • the space between the dozer-like device 10 and the hull 11 is open at the bottom as at 17 and the sides 18 to permit the escape of any air that would be compressed by the entrance of water from the bottom of the device.
  • the top portion of the device may be provided with a deck 19 which in plan view would be generally V-shaped or conform to and cover the area between the vessel hull and the dozer-like device 10.
  • a vessel having the dozer-like device of the present invention installed thereon would engage the swells or waves 20, as shown in Figures 1 and 2, and impart a thrust or rolling action of the water forward of the vessel and to the side, as shown at 21 and 22. This will smooth the Water out in advance of the bow of the vessel 11, contacting the Wave or swell to produce a relatively quiet calm Water in and through which the vessel passes.
  • this device will eliminate the pitching and yawing of the vessel and reduce bow damage from hitting waves at high speeds and will also reduce the shock incident to the pounding action of the bow dropping down into the trough of waves.
  • the distance that the dozer-li'ke device 10 is placed in advance of the vessel hull may vary from vessel to vessel depending upon the size, speed and tonnage of the vessel. Since this acts as a dozing device, the mean cruising speed of the vessel will determine the lead in advance of the hull for the optimum position of the dozer-like device 10. Generally speaking the higher the speed of the vessel the greater the distance that the dozer-like device should be in advance of the hull for smooth operation of the vessel. I do not restrict myself in this disclosure to any fixed distance of the dozer-like device from the vessel hull since the speed and hull characteristics of each vessel may vary as well as sea conditions.
  • the dozer-like device i.e., both the plates and the attaching structure may be made of a light alloy material having high strength characteristics and low weight.
  • My device may be particularly useful in connection with aircraft carriers to provide the stability to the hull necessary to insure a substantially level fiat flight deck for take-off and landings.
  • the device of the present invention may be installed and most effectively employed in connection with an LST or other type amphibious barge-like vessel having front doors which open to permit the dropping of a load and discharge ramp, and when installed in this environment the device may be secured to arms pivoted to the side of the vessel which may be elevated either hydraulically or by conventional deck winches to clear the discharge doors at the bow of the vessel.
  • a fore and aft stabilizing device comprising water-engaging means of solid wall construction having geometrical similitude with the bow of the vessel and positioned to engage surface irregularities of the water and to distribute such irregularities of the water to provide a substantially smooth water path in advance of the bow .of the vessel to remove the yawing and pounding of the bow of the vessel against the water, said means overlapping the bow by at least one-half the longitudinal dimension of said means, and spacer means connected to the water-engaging means and adapted to connect said water-engaging means to the bow of the vessel in advance of the bow of the vessel to position the water-engaging means in advance of and spaced from the bow of the vessel.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)

Description

May 16, 1961 E. M. TOUSSEL 2,984,200
PITCH AND YAW ELIMINATOR FOR VESSELS AND THE LIKE Filed April 29, 1959 INVENTOR Ernesi M. Toussel \immmmw ATTORNEY Patented May 16, 1961 PITCH AND YAW ELIlVIINATOR FOR VESSELS AND THE LIKE Ernest M. Tousel, 13 Egret St., New Orleans, La. Filed Apr. 29, 1959, Ser. No. 809,806
2 Claims. (Cl. 114121) The present invention relates to a pitch and yaw elimi nator for vessels and the like, and has for an object to provide a device which may be attached to presently existing vessels such as steam ships, barges, small craft, naval vessels of all sizes regardless of the type of power employed by the vessel.
Another object of the present invention is to provide a device of the character described which may be attached to the bow of a vessel requiring a minimum of labor and precision of construction.
A further object of the present invention is to provide a device in advance of the hull of the vessel which will first engage the waves or swells of the sea, river or lake to doze or clip off the top portions or crests of the waves and roll this mound of water in advance of the ship whereby the water contacted by the bow of the vessel will be relatively calm and quiet and will also prevent the pitching and yawing action which in a rough sea often exposes the screw of the vessel and removes it from contact with the water.
A still further object of the present invention is to provide a device of the character described which will not only act as a fore and aft stabilizer to the vessel, but which will provide a collision impact reduction member which will cushion the vessel against a blow in collision with another vessel to thereby protect the water-tight integrity of the hull of the vessel.
A further object of the present invention is to provide a fore and aft stabilizer which will provide a dozer-like effect in advance of the vessel hull without building up any air pressures between the dozer-li'ke device and the hull which would react to form a pneumatic lock.
With the foregoing and other objects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.
In the drawings, wherein like symbols refer to like or corresponding parts throughout the several views:
Figure 1 is a side elevational view of a steam ship having the device of the present invention installed thereon;
Figure 2 is a side elevational view of the bow of the vessel of Figure 1 taken at an enlarged scale with parts broken away and parts shown in section;
Figure 3 is a top plan view of Figure 2, and
Figure 4 is a vertical section taken on the line 44 in Figure 3.
Referring more particularly to the drawings, designates generally a dozer-like device secured in place on the hull 11 of a vessel. This attachment is of course at the bow or stem of the vessel. The device may consist of two side plates 12 and 13. These side plates 12 and 13 are given the external configuration similar to the bow construction and as shown best in Figure 4 the plates 12 and 13 extend from the top of the bow to the keel. Openings 14 and 15 are provided between the plates 12 and 13 and the hull. The openings are maintained constant for a particular installation by means of spacer bars or struts 16. These struts 16 may be secured to the hull of the vessel in any suitable manner as by bolting or welding.
The term dozer-like device as employed herein means a surface or member containing a surface positioned to engage the water in advance of the bow of the vessel and to distribute mounds or swells to provide a smooth path for the bow of the vessel following behind the dozer-like device. This action is likened to the scraping blade of a bulldozer which levels orsmooths out or renders dull the surface attacked by the scraper blade.
IAS shown best in Figure 2, the space between the dozer-like device 10 and the hull 11 is open at the bottom as at 17 and the sides 18 to permit the escape of any air that would be compressed by the entrance of water from the bottom of the device. The top portion of the device may be provided with a deck 19 which in plan view would be generally V-shaped or conform to and cover the area between the vessel hull and the dozer-like device 10.
In operation a vessel having the dozer-like device of the present invention installed thereon would engage the swells or waves 20, as shown in Figures 1 and 2, and impart a thrust or rolling action of the water forward of the vessel and to the side, as shown at 21 and 22. This will smooth the Water out in advance of the bow of the vessel 11, contacting the Wave or swell to produce a relatively quiet calm Water in and through which the vessel passes.
In rough seas I have found that this device will eliminate the pitching and yawing of the vessel and reduce bow damage from hitting waves at high speeds and will also reduce the shock incident to the pounding action of the bow dropping down into the trough of waves.
The distance that the dozer-li'ke device 10 is placed in advance of the vessel hull may vary from vessel to vessel depending upon the size, speed and tonnage of the vessel. Since this acts as a dozing device, the mean cruising speed of the vessel will determine the lead in advance of the hull for the optimum position of the dozer-like device 10. Generally speaking the higher the speed of the vessel the greater the distance that the dozer-like device should be in advance of the hull for smooth operation of the vessel. I do not restrict myself in this disclosure to any fixed distance of the dozer-like device from the vessel hull since the speed and hull characteristics of each vessel may vary as well as sea conditions.
The dozer-like device, i.e., both the plates and the attaching structure may be made of a light alloy material having high strength characteristics and low weight.
My device may be particularly useful in connection with aircraft carriers to provide the stability to the hull necessary to insure a substantially level fiat flight deck for take-off and landings.
The device of the present invention may be installed and most effectively employed in connection with an LST or other type amphibious barge-like vessel having front doors which open to permit the dropping of a load and discharge ramp, and when installed in this environment the device may be secured to arms pivoted to the side of the vessel which may be elevated either hydraulically or by conventional deck winches to clear the discharge doors at the bow of the vessel.
Although I have disclosed herein the best form of the invention known to me at this time, I reserve the right to all such modifications and changes as may come within the scope of the following claims.
What is claimed is:
1. For use with a vessel having a hull adapted to be moved through the water, a fore and aft stabilizing device comprising water-engaging means of solid wall construction having geometrical similitude with the bow of the vessel and positioned to engage surface irregularities of the water and to distribute such irregularities of the water to provide a substantially smooth water path in advance of the bow .of the vessel to remove the yawing and pounding of the bow of the vessel against the water, said means overlapping the bow by at least one-half the longitudinal dimension of said means, and spacer means connected to the water-engaging means and adapted to connect said water-engaging means to the bow of the vessel in advance of the bow of the vessel to position the water-engaging means in advance of and spaced from the bow of the vessel.
4 2. A device as claimed in claim 1 wherein the water engaging means is of V-shape and the side walls thereof extend from the deck to the keel of the vessel.
References Cited in the file of this patent UNITED STATES PATENTS 980,964 Kalous Ian. 10, 1911 1,065,506 Constantin June 24, 1913 1,822,223 Klinger Sept. 8, 1931 2,378,822 Barry June 19, 1945 2.776.637 Chadwick Jan. 8. 1957
US809806A 1959-04-29 1959-04-29 Pitch and yaw eliminator for vessels and the like Expired - Lifetime US2984200A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089452A (en) * 1961-05-04 1963-05-14 Penn Ind Inc Anti-yawing combination
US3291236A (en) * 1961-10-12 1966-12-13 Aerophysics Company Ground effect machine
US4340004A (en) * 1977-03-30 1982-07-20 Yutaka Kanei High-speed ship
EP1170204A1 (en) * 2000-05-16 2002-01-09 Mitsubishi Heavy Industries, Ltd. Motion reduction apparatus and floating body therewith
US20040139899A1 (en) * 2002-08-23 2004-07-22 Scott Thomas J. Ballast exchange system for marine vessels

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US980964A (en) * 1910-02-08 1911-01-10 Alois Kalous Boat attachment.
US1065506A (en) * 1912-03-18 1913-06-24 Louis Constantin Means for reducing the resistance to the passage of vehicles in fluids.
US1822223A (en) * 1927-10-27 1931-09-08 Klinger Johann Rudolf Construction of ships, boats and the like
US2378822A (en) * 1945-06-19 Draft reducing air distributor for
US2776637A (en) * 1954-03-04 1957-01-08 William R Chadwick Boat construction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2378822A (en) * 1945-06-19 Draft reducing air distributor for
US980964A (en) * 1910-02-08 1911-01-10 Alois Kalous Boat attachment.
US1065506A (en) * 1912-03-18 1913-06-24 Louis Constantin Means for reducing the resistance to the passage of vehicles in fluids.
US1822223A (en) * 1927-10-27 1931-09-08 Klinger Johann Rudolf Construction of ships, boats and the like
US2776637A (en) * 1954-03-04 1957-01-08 William R Chadwick Boat construction

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089452A (en) * 1961-05-04 1963-05-14 Penn Ind Inc Anti-yawing combination
US3291236A (en) * 1961-10-12 1966-12-13 Aerophysics Company Ground effect machine
US4340004A (en) * 1977-03-30 1982-07-20 Yutaka Kanei High-speed ship
EP1170204A1 (en) * 2000-05-16 2002-01-09 Mitsubishi Heavy Industries, Ltd. Motion reduction apparatus and floating body therewith
US6652193B2 (en) 2000-05-16 2003-11-25 Mitsubishi Heavy Industries, Ltd. Swaying reduction apparatus and floating body therewith
US20040071498A1 (en) * 2000-05-16 2004-04-15 Mitsubishi Heavy Industries Ltd. Motion reduction apparatus and floating body therewith
US7677838B2 (en) 2000-05-16 2010-03-16 Mitsubishi Heavy Industries, Ltd. Motion reduction apparatus and floating body therewith
US20040139899A1 (en) * 2002-08-23 2004-07-22 Scott Thomas J. Ballast exchange system for marine vessels
US6766754B1 (en) 2002-08-23 2004-07-27 Saudi Arabian Oil Co. Ballast exchange system for marine vessels

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