 Post-tension intersection chair |
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| Sliding guide |
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| Particle for vibration damping |
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| Fluid-filled insulating bushing |
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| Motor mount compensator assembly |
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| Rotatable bracket securing a window frame to a roof |
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Marine vessel roll stabilizer apparatus
| Details |
Inventors: Larsh, Everett P.;
Assignee:
Primary Examiner: Blix; Trygve M.
Assistant Examiner: Goldstein; Stuart M.
Attorney, Agent or Firm: Jacox & Meckstroth
Anti-roll apparatus for a marine vessel. A plurality of fins are carried by the vessel. Each fin is operatively moved by motor mechanism which is connected thereto by means of clutch mechanism. The motor mechanism is in continuous operation. A roll sensor unit is mounted in a position to detect roll motion of the vessel. The roll sensor unit transmits signals to the clutch mechanism in response to roll motion of the vessel. The clutch mechanism joins the motor mechanism to the fins for movement thereof in accordance with operation of the roll sensor unit. The fins are thus operatively moved to reduce and/or eliminate the roll action of the vessel. |
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG.
1 illustrates a marine vessel 20 and shows the general location of a sensing unit 22, and stabilizer fins 24 and 26.
FIG.
9 shows motors 28 and 30 for operation of the fin 26 and motors 32 and 34 for operation of the fin 24.
FIG.
9 also shows a clutch 38, which joins the motor 28 to a gear assembly 39, and a clutch 40 which joins the motor 30 to the gear assembly 39.
A shaft 42 is rotatably supported by any suitable means, not shown, and joins the gear assembly 39 to the fin 26.
The motor 32 is joined by a clutch 44 to a gear assembly 46, and the motor 34 is joined by a clutch 48 to the gear assembly 46.
A shaft 49 is rotatably supported by any suitable means, not shown, and joins the gear assembly 46 to the fin 24.
The sensor unit 22 comprises a housing 50, shown in FIGS.
2, 3, and 4, which, as shown in FIG.
4, is rigidly attached to a portion of support structure 53 of the vessel 20 by means of bolts 52.
The housing 50 of the sensor unit 22 is preferably located in or adjacent a control station 54 of the vessel 20, as illustrated in FIG.
1.
The housing 50 comprises a base plate 51 and a cover member 55.
Secured to the base plate 51 is a bracket member 56 which has spaced-apart aligned bearing support portions 57 and 58.
Within the bearing support portion 57 is a bearing 60, and within the bearing support portion 58 is a bearing 62.
A shaft 64 is rotatably supported by the bearings 60 and 62.
A pendulum 63 is attached to the shaft 64 and comprises spaced apart stems 65 and 66, which are carried by the shaft 64, and a weight member 67.
The stem 65 has a frictional disc 68 secured thereto, and the stem 66 has a frictional disc 70 secured thereto.
A pin 74 extends through a portion of the disc 68 and into the shaft 64 so that the stem 65 is non-rotatably attached to the shaft 64.
A weight member 67 is attached to the stems 65 and 66 at the lower ends thereof.
Rotatably mounted upon the shaft 64 and disposed between the frictional discs 68 and 70 is a connector member 80
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