US229000A - Ghaeles g - Google Patents

Description

(N0 Model.) G G KELLOGG Steam Canal Boat.

No. 229,000. Patented June 22,1880

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N-PErzns, FHQTO-LIIMQGRAFMER, WASHINGTON o C UNITED STATES PATENT Enron,

CHARLES G. KELLOGG, OF BROOKLYN, NEW YORK.

STEAM CANAL-BOAT.

SPECIFICATION. forming part of Letters Patent No. 229,000, dated June 22, 1880.

Application filedMarch 26,1880. (No model.) 7

To all whom it may concern:

Be it known that I, CHARLES G. KELLOGG, of Brooklyn, in the county of Kings and State of New York, have invented certain Improvements in Steam Canal-Boats, of which the following is a specification.

In this invention the propelling apparatus and its adj uncts are so constructed and com biued that a portion of the motive power is applied to lifting the boat upon the water, while another portion is applied to the forward propulsion of the craft, by which means the displacement of the boat is diminished, the

, swell of the water greatly lessened, and the speed of the boat, in proportion to the expenditure of power, is materially promoted.

The invention comprises certain novel combinations of parts by which the above-mentioned principle of operation may be very effectually carried into effect.

Figure 1 is an inverted plan view, and Fig. 2 a vertical longitudinal sectional view, of a canal-boat embracing my said invention and Fig. 3 is an enlarged sectional view of the paddle-wheel designed for use in said boat.

A is the hull, which, on its bottom or under side, a, is substantially of a flat form. The bow itself has the inclined form shown at b,

g and more clearly indicated in Fig. 2. On each side of its hull, and extending downward and forward, are two straight flanges, B, which not only project below the bottom a, as shown at 0, but which also project forward beyond the bow b, as shown at d.

In the bottom a, at the forward end thereof, and also in the adjacent portion of the bow b-that is to say, at the junction of the bottom and the bow-is an opening, f, through which project the paddles a of the paddle-wheel O, the axis of which is transverse to the length of the boat, and which may be operated by steam or other suitable power to rotate in the direction indicated by the arrows in Figs. 2 and 3.

Around the paddle-wheel 0, except where the latter passes through the opening f, is a shell, D, concentric with the axis of the said paddle-wheel, and which prevents the water from being thrown from the paddles in an upward direction after the said paddles have passed upward in the rearmost portion of the opening f.

In order to most effectually carry into effect the hereinbefbre-described principle of my said invention, the paddles a of the paddle-wheel 0, instead of being radial to the axis of the said paddle-wheel, are tangential to a circle concentric with said axis, as represented in Fig. 2, and also on the larger scale represented in Fig. 3. It is also to be observed that the flanges diminish in depth as they approach the stern, and that the space between the flanges that is to say, the width of the bottom of the boat increases in a moderate degree from the bow to the stern. This permits the water to pass freely back and away after the impact or propelling strokes of the paddle have acted thereon. The paddle-wheel being rotated in the direction of the arrows, as hereinbefore described, the paddles strike upon the water beneath and operate in a. twofold manner-that is to say, to lift the bow of the boat and also to move the said boat forward; and the water beneath being confined by the flanges against lateral movement, the full effect of the paddles is realized. At the same time the inclined forward end of the boat 00- operates with the bow in the lifting action of the paddles to move in an upward direction, thereby lifting it somewhat, so thatin ameasure the boat is caused to pass over instead of through the water. This result is in a great measure due to the tangential position of the paddles a, which are caused to strike horizontally, or nearly so, in their first impact upon the water, and thereby tend to lift the boat substantially simultaneous with the forward movement given to the said boat by the rotation of the paddles. Simultaneous with this operation of the paddle, the flanges B, extended forward and downward, as hereinbefore explained, confine, or, so to speak, laterally inclose, the water passing to and under the boat in such manner and position that the paddle-wheel can act most advantageously thereon, both in lifting upward and moving forward the vessel, the said flanges B also at the same time preventing any lateral wash 'from the boat, and consequently any heaping up of the water at the sides, while the gradual widening of the space between the flanges toward the stern permits the facile escape of the water rearward behind the boat. By the means described, therefore, the boat, in proportion to its weight, will have a comparatively slight displacement, and in proportion to the speed will encounter a conmaratively slight resistance from the water, a given degree of power being therefore capable of producing a greater and more satisfactory speed in the propulsion of the vessel than is obtained by ordinary means.

What I claim as my invention is 1. The combination of the hull A, having the inclined bow b, with the (.lownwardly and forwardly projecting flanges B, placed at opposite sides of the said hull and extended substantially the whole length of the hull, and a suitable paddle-wheel working through an opening, f, at the junction of the inclined how I) with the bottom of the boat, all substantially as and for the purpose herein set forth.

2. The combination of a paddle-wheel with a flat-bottomed canal-boat constructed with flanges B, one at each side of the fiat bottom of the boat, said flanges diminishing in depth toward the stern, and the space between said. flanges increasing gradually from the bow to the stern, all substantially as and for the purpose herein set forth.

GHARLES G. KELLOGG.

Witnesses:

H. F. PARKER, CHAS. H.v T. DOXAT.

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