US764267A - Steamboat-propeller. - Google Patents

Description

No. 764,267. PATENTED JULY 5, 1904.

' W. S. BAKER.

STEAMBOAT PROPELLER.

APPLICATION 'EILBD AUG. 1a, 1903.

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secured, and driving-rods u o UNITED STATES Patented July 5, 1904.

PATENT OFFICE.

WOR"HINGTON S. BAKER, OF PITTSBURG, PENNSYLVANIA.

STEAMBOAT-PROPELLER SPECIFICATION forming part of Letters Patent N0. 764,267, dated July 5, 1904.

Application filed August 18, 1903. Serial No. 169,846. (No model.)

To (LZZ whom it may concern.-

Be it known that I, WORT HINeroN S. BAKER, a citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Steamboat Propellers, of which improvement the following is a speciiication.

This invention relates to certain new and useful improvements in steamboat-propellers, and relates more particularly to propellers which are adapted to be used in river, canal, or other shallow waters.

The object of this invention is to provide means whereby increased power may be obtained and also to so construct the apparatus that very little disturbance of the water will take place, as'the pro1i)ellingpaddles enter and pass through the water in a substantially vcrtical position.

With the above and other objects in View my invention resides in the novel combination and arrangement of parts, as will be hereinafter more fully described, and specifically pointed out in the claim.

In describing the invention in detail reference will be had to the accompanying drawings, forming a part of this application, in which like reference-numerals indicate like parts throughout the several views, in which Figure 1 is a side elevation of my improved propelling mechanism. Fig. 2 is a transverse section on the line 2 2 of Fig. 1. Figs. 3 and 4- are details of a modified form of my device.

Referring to the drawings, the referencenumeral 1 indicates the main driving-shaft, to the ends of which the driving-cranks 2 2 are 9 9 are connected therewith. The sprocket-wheels 4 1 are suitably secured on said shaft in any desired manner, and each of said wheels has formed or secured thereon the sprocket-wheels 5 5, which are of lesser pitch diameter than the wheels 4:. Larger sprockets 6, carrying the sprockets 7, are mounted on the shaft 8, which is located a suitable distance from the shaft 1, and while the sprockets 4 and 5 are placed at such an elevation that the sprocket 4: normally just touches the water the sprockets 6 and 7 are placed at such an elevation that the sprocket 7 touches the water, the same being for a purpose to be presently described.

Endless chains 9 and 10 pass around the sprockets 4 6 and 5 7, respectively, and paddles 11 are suitably secured between said chains, as will be seen by referring to Fig. 2. Guides 12and 1 1 are provided for the chains where they pass through the water, both to protect said chains and to maintain the same in a desired elevation between the sprockets.

The chains carrying the paddles pass over the sprockets, and the paddles enter and will pass through the water in a substantially vertical position, as the different diameter and elevation of the two sets of sprockets will cause thepaddles to travel as will be seen by reference to Fig. 1.

In Figs. 3 and 4; I have shown a single chain 9 in place of the two chains 9 and 10, the paddle 11 being secured in a port13, whichis secured or formed on the links 16 at suitable intervals, and the guide 12 prevents the paddle from twisting or turning to the link 16, passing through the same.

While I have herein illustrated my invention as being applied to the side of a boat and being driven by cranks and (.lriving-rods, it is obvious that it could be placed at the rear or any other part of the boat and be driven in any desired manner and that various other slight changes may be made without departing from the general spirit of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, iS

A device of the type set forth comprising a pair of large sprocket-wheels disposed on opposite sides of the vessel, a smaller sprocketwheel rigidly secured to each of the large sproeket-wheels, a second pair of sprocketwheels disposed on opposite sides of the vessel and of greater diameter than the firstnamed pair, a small sprocket-wheel carried by each of the last-named sprockets, the sprockets on each side of the vessel being in longitudinal alinement with one another, long and short continuous chains carried by each pair of large and small sprockets, paddles being secured at their upper and lower ends to the long and short chains respectively, the

sprocket-Wheels being so positioned that the my name in the presence of two subscribing large sprocket-Wheel of the first-named pair Witnesses.

and the smaller sprocket-wheel of the last- 7 r named pair both touch the surface of the Wa- WVOREHINGrlON BAKER 5 ter in the same horizontal plane, substantially In presence of as described. F. O. HENZI,

In testimony whereof I have hereunto signed M. HUNTER.

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