US193196A - Improvement in canal-boat propellers - Google Patents

Description

J. TASCHE'R. CANAL-BOAT PROPELLER.

N0. 193,196. Patented July 17, 1877.

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UNITED STATES OFFICE.

JACOB T'ASCHER, OF CENTRAL CITY, COLORADO.

IMPROVEMENT IN CANAL-BOAT PROPELLERS.

Specification forming part of Letters Patent No. 193,196, dated July 17, 1877; application fil-ed J une 8, 1877.

To all whom 'it may concern.-

Beit known that I, JACOB TASOHER, of Central City, in the county of Gilpin and State of Colorado, have invented a new and useful Improvement in Device for Propelling Canal-Boats, of which the following is a specification:

This invention has for its object the construction of a propelling apparatus for movtion of a boat tted with the improved pro-` pelling apparatus. same.

The boat A may be of the usual or any approved form of construction for navigation on canals.

Across this boat will be placed a drivingshaft, B, which will be rotated by any suitable motor. This shaft will be provided with a series of .two or more cranks, b, to which the propellingrods C will be coupled by means of suitable wrist-joint connections.

The rods C will be two or more in number, and each of them will consist of three pieces, c c1 c2. The rst of these, c, forms a connecting-rod, which couples the inner end of the rod cl with the crank b of the driving-shaft.

The rod c1 forms the principal part of the length of the rod C, and passes through the guid es D,which are fixed in the stern ofthe boat. These rods cl are given a direct reciprocating motion by means of the shaft B and the connecting-rods c1, and the guides D hold them properly in their positions relatively to the boat.

Fig. 2 is a plan of the The guides D, with their inclosed rods, are set at an inclined angle with the longitudinal axis ofthe boat, as shown in Fig. 1, so as to cause their outer ends to project downwardly toward the bottom of the canal.

The guides D are preferably made cylindrical in form and water-tight circumferentially, and fixed water-tightly to the stern of the boat, through which they pass, so that should they become submerged no water will enter through or around them to the interior of the boat. v

To the exterior end of the rod c1 is jointed the propelling-piece c2, which is jointed to the piece c1, so it may be moved, as indicated by the dotted lines of Fig. 1, so as to accommodate itself automatically to the asperities of the bottom of the canal.

On the llower end of the pieces c1 are jointed foot-pieces C', arranged to press atwise against the canal-bottom, to prevent. the rods sinking into the soft earth. The jointing of thesepieces to the rods c2 permits them to be withdrawn readily through the water without unnecessary friction.

In operation these rods will be successively placed against the canal-bottom, asin the act of walking a persons feet are moved.

The foot-pieces C' are intended to be made broad and dat, somewhat like a ducks feet, and when the depth of the water in the canal is too great to permit their touching the bottom they will press against the water like a paddle, and so act to propel the boat forward. Having described my invention, I claim- The propelling-rod C,formed in sections c cl c2, and having a broad foot-piece, C', at its outer end, while the rod C passes through the guide D in a sloping direction, and receives a reciprocating motion from the driving-shaft B, as and for the purpose described and set forth.

JACOB TASCHER.

Witnesses:

M. A. ARNOLD, I CHASE WITHRow.

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