US1737154A - Boat - Google Patents

Description

B. G. HARLEY BOAT \Filed Feb. 6, 2

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Nov. 26, 1929. B, HARLEY I 1,737,154.

BOAT

Filed Feb. 6, 1928 2 Sheets-Sheet 2 INVENTOR.

A TTORNEYS.

Patented Nov. 26, 1929 UNITED STATES PATENT GFFEQE BERTRON G. HARLEY, F CHESAPEAKE CITY, MARYLAND, ASSIGNOR OF FORTY-NINE ONE-HUNDRED'II-IS TO JAMES E. VIALLS, OF MIDDLETOWN, DELAWARE BOAT Application filed February 6, 1928.

This invention relates to a boat structure wherein a well is provided for the reception of an outboard motor, the walls of the well being so arranged that they not only serve as a bracing bulkhead for the hull, but permit the motor structure to be pivoted and Lil so that an aspiratin through the well.

swung up beyond the hull contour and out of the way when the boat passes over obstructions, is used in shallow water, or when beached.

One of the principal objects of the inven tion is to mount such a motor upon a boat at substantially the boats center of weight distribution and at a point when the mum propulsion power may be secured.

Another important object of the invention is the construction of the well walls so that the minimum amount of splash will ocour, and the hull bottom forward of the well effect may be secured This results in causing the smoke and exhaust gases from the motor to be sucked downwardly through the well and discharged through the bottom thereof beneath the hull stern. These gases together with the aspirated air to a certain extent floats the hull, aft of the well as upon an air cushion, which circumstance decreases water friction and results in ease of propulsion.

To this end the invention contemplates the provision in a boat hull of either the displacement or step hydroplane types, of a well located within the hull. The forward well wall extends athwart-ships to each side of the hull to form a bracing bulkhead. Upon this inclined wall, the detachable outboard motor of the usual pivoted type is to be mounted, the aft well wall is likewise inclined from bottom to top, which together with the vertical side walls restricts the top commodate the downwardly projecting propeller assembly of the motor when swung upwardly and aft about its pivot. The propeller assembly may in this way be moved to lie entirely within the contour of the hull. A. deflector is provided just forward of the Serial No. 252,225.

well bottom which causes the water to be slightly depressed or deflected past the well bottom. This-circumstance causes an aspirating action in the well which effectively removes all smoke, exhaust gases and other foul odors from the motor through the well bottom. These gases with air admixtures, causes a floating action in the aft portion of the hull which in turn reduces friction and makes for efficient propulsion.

The invention further consists in the novel arrangements, combinations and construction of parts more fully described hereafter and shown in the drawings, in which:

Fig. l is a side elevation of a boat embodying the invention with parts broken away to show the well details.

Fig. 2 is a plan view of Fig. 1.

Fig. 3 is a fragmentary perspective view of the well.

Fig. 4C is a similar view of the inverted hull showing the well bottom and deflector.

Referring particularly to the embodiment shown as an example, the boat hull is indicated generally at 1 consisting of the usual bracing 2 and planking 3.

A well is provided in the keel section of the hull, and comprises a forward wall 4 arranged athwart-ships and extending from side to side so as to form' a bracing bulkhead. It is to be noted that this wall 4 inclines aft from bottom to top, as most outboard detachable motors are arranged to be mounted upon an inclined stern board.

The aft well wall is shown at 5, inclined forward from bottom to top and being so arranged thatthe outboard motor assembly shown enerally at 6 may be swung upwardly about its pivot and the propeller mechanism 7 to be drawn within the well and within the hull contour, thus allowing the boat to navigate over obstacles in shallow water and to be drawn up upon the beach.

The angularity of the aft wall 5 likewise prevents splash from the well from entering the boat proper.

The forward and aft walls a and 5 are joined on each side by the walls 8 and 9 so that the well has a restricted top opening only sufiioient to accommodate the mot r ssembly.

Forward of the well bottom, a deflector 10 is located which in the embodiment illus trated may consist of ofiset planking adjacent the Well bottom, this structure serves to defiectthe water stream downwardly away from the well bottom. This action serves a multitude of beneficial purposes. The prin cipal results flowing from this arrangement are that this deflected stream causes the formation of a partial vacuum beneath the well which thus causes any odors, smoke or eX- haust gases from the motor to be drawn downwardly through the well and discharged aft. These fluids in their passage beneath the stern quarter of the hull assist in floating the boat and cut down Water friction to a minimum. This action naturally increases as the speed of the boat through the Water increases by drawing in additional air through the Well top which is likewise discharged through the well bottom.

Still another advantage is that the deflected water stream tends to decrease the force with which the water strikes the aft Wall thus minimizing the splash.

A hatch cover 11 may be used to protect the motor in case of inclement Weather or from spray.

I claim:

1. In combination, a boat hull, a motor receiving Well therein, and a Water deflector on the boat bottom forward of the well bottom.

2. In combination, a boat hull, a motor receiving well therein located substantially amidships, and a rigid water deflector on the boat bottom forward of the well bottom.

3. In combination, a boat hull, a motor receiving compartment therein located intermediate the ends and open at the bottom and of less Width than the hull, the bottom of the hull forward of said wall having a surface portion inclining downwardly towards the front wall of the well, said inclined portion being of substantially the same Width as the well.

In testimony whereof, I affix my signature.

BERTRON G. HARLEY.

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