US1669276A

US1669276A - Automatic boat bailer

Info

Publication number: US1669276A
Application number: US93309A
Authority: US
Inventors: Harold L Baldwin
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-03-08
Filing date: 1926-03-08
Publication date: 1928-05-08
Anticipated expiration: 1945-05-08

Description

May 8, 1928. 1,669,276

H. L. BALDWIN AUTOMATIC BOAT BAILER Filed March 8. 1926 flaw ZaZZ- Edda/an 6N0: new

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tially parallel. Thus in closing the valve, the

edges

27 and 28 will serve to shear off any foreign-matter that might collect in the valve casing and this will insure the complete closure of the valve.

In the operation of my device the movement of the boat forwardly through the wa-' ter causes the water to flow around the displacement member 6, thus creating a suction at the rear of the member suflicient to open the check valve 13. Any water which may have collected in the hull of the boat will therefore, be drawn through the ports and be ejected through the opening inthe rear of the displacement member. By providing the forwardly and upwardly curved surfaces on the displacement member the latter offers a minimum amount of resistance to the water flowing past the same and by providing the reduced neck portion a greater amount of suction will be produced because of the fact that the water surrounds at least 270 of the circumference of the body.

My improved construction is easy to install and simple to manufacture since it com prises only a single main casting, the sleeve valve and the check valve. The broad flange formed integral with the main casting provides a good bearing surface so that the device may be rigidly secured to the boat and by employing a suitable gasket 31 the joint will be entirely leak proof.

A suitable stop is preferably provided to limit the rotation of the sleeve valve to approximately one-fourth of a turn and asshown in Figure 5, this comprises a screw 29 threadedly engaging the valve 18 and projecting through a segmental slot 30 in the outer casing 17. With this arrangement when the screw is at one end of the slot the valve is open and when at the other end the valve is closed.

What I claim as my invention is:

1. An automatic boat bailer comprising a hollow displacement member adapted to be attached to the bottom of a boat, said displacement member being stream lined longitudinally and having an opening at the rear thereof, a conduit connecting with said hollow member opening into the lower portion of the hull, an annular flange within said displacement member, a flap valve hingedly connected to said displacement member and adapted to seat upon said flange within the outerwalls of said member, said valve being of substantially the same area asthe opening in the rear of said displacement member.

2. An automatic boat b'ailer comprising a plate adapted to be attached to thehull of a vessel, a hollow displacement member depending from said plate andintegral therewith, said displacement member having its outer surface tapered forwardly and upwardly to impart a stream line contour thereto, the rear of said displacement member being open, an inwardly projecting annular flange forwardly spaced from the rear of said displacement member, a gravity seated check valve hingedly mounted on said displacement member .to seat upon said annular flange, a vertical tubular housing integral with said plate adapted to project through the bottom of said vessel, said housing being laterally ported above the bottom of the vessel, a manually controlled valve rotatable in said housing and provided with lateral ports adapted to register with said first mentioned ports.

3. An automatic boat bailer comprising a plate adapted to be attached to the hull of a vessel, a displacement member depending from said plate and integral therewith, said displacementmember having its outer surface tapered forwardly and upwardly to impart a stream line contour thereto, said displacement member also being hollow forming a single chamber therewithin, a tubular valve housing on the opposite side of said plate from said displacement member and communicating with said chamber, an annular flange within said displacement member, a gravity seated check valve hingedly connected to said displacement member and adapted to seat upon said flange thereby forming a check to prevent the back flow of water into said chamber.

1-. An automatic boat bailer comprising a plate adapted to be fastened to the bottom surface of a boat, a hollow displacement member depending from said plate, the lower portion of said member being substantially circular in cross section and provided with an opening at the rear thereof, a contracted neck connecting said plate to said lower portion whereby 'the latter has at least 270 of its circumference surrounded by water, said displacement member being tapered forwardly and upwardly forming a lower surface, the forward end of which merges into the forward end of said plate, a flap valve of an area substantially equal to the opening in said lower portion, said valve being hingedly connected to said neck portion to seat within said displacement member, a tubular casing projecting upwardly from said plate provided with ports within the hull of said boat, and a manually operable sleeve valve rotatable in said casing for closing and opening said ports.

5. An automatic boat bailer comprising a plate adapted to be attached to the bottom of a boat, a stream lined displacement member depending from said plate, a vertical tubular housing provided with a plurality ofv lateral openings projecting upwardly from said plate, the said displacement member having an opening at the rear thereof and forming with the vertical tubular housing a conduit extending from the exterior'to the interior of the boat, an annular flange but Within the displacement member adjacent the opening in the rear thereof, a flap valve sleeve being supported by the said last mentioned flange and being PIOVlClQQl'Witll a plurality of apertures adapted to be moved into registration with the apertures in the vertical tubular housing. y

(5. An automatic boat baller COJIlPl'lSlIlg a plate adapted to be attached to the bottom of a boat, a tubular housing carried by said plate and projecting into the interior of the,

boat, a hollow displacement member depend ing from said plate having a mouth registering with 'the tubular housing and an opening adjacent the rear thereof, the said displacement member forming with the tubular housing a conduit extending from the exterior to the interior of the boat, a flange carried by the plate adjacent the mouth of the displacement member, and a sleeve within the tubular housing supported by the said flange, the sleeve forming with the tubular housing, a sleeve valve for controlling the passage of water through the conduit formed by the displacement member and the tubular housing.

7. An automatic boat bailer including in combination an intake member adapted to be positioned within the hull of a boat and a hollow displacement member adapted to de pend from and be positioned below the bot-' tom of the said boa-t,the said hollow displacement member being curved upwardly and forwardly to a knife edge.-

' 8. An automatic boat bailer including in combination a plate adapted to be fastened to the bottom surface of a boat, a valved intake portion projecting upwardly from the said plate within the hull of the said boat, and a hollow displacement member depending from said plate, the said hollow displacement member being provided at its forward end with a knife edge. i i

9. In an automatic boat bailer, the combination with a plate adapted to be fastened tothe bottom surface of a boat, of 'a hollow displacement member depending from said plate, astubular casing projecting upwardly from said plate provided with ports within the hull of said boat, and a valve closing the said ports, the said valve being provided with a portion adapted to shear ofl' anyforreign matter that might collect in the said valve casing.

y 10. In an automatic boat bailer, the combi- I nation with a hollow displacement member adapted to depend from the bottom of a I boat, of a tubular casing adapted to project upwardly within the hull of the said boat, the saidtubular casing being provided With lateral ports, and a rotary valve for closing the saidports, the said valvehaving edge portions adapted to shear off any foreign matter that might collect in the said valve casing.

11. An automatic boat bailerincluding in combination, a valve casing adapted for positioning within the hull of a boat, a hollow displacement member depending from said valve casing and adaptedto be positioned'below the bottom surface of the boat, the said hollow displacementmember being stream lined and being provided witha' relatively large opening at the rear thereof, and a flap valve of an area substantially equal to the opening in the said displacement member, closing the said opening.

In testimony whereof I aflix my signature.

HAROLD L. BALDXVIN.