Boat propelling-gear.

(Application filed Aug. 7, 1900.) (No Model.)

<img file="US673203A_D0001.tif" />

^{TH£ N0RBis} PETERS CO.. PHOTO-LfTMO., WASHINGTON. Ο. (I.

United States Patent Office.

JOHN A. FREUND, OF BROOKLYN, NEW YORK.

BOAT PROPELLING-GEAR.

SPECIFICATION forming part of Letters Patent No. 673,203, dated April 30, 1901.

Application filed August 7,1900. Serial No. 26,147. (No model.)

To all whom it may concern:

Be it known that I, John A. Freund, a citizen of the United States, and a resident of the city of New York, borough of Brooklyn,in the 5 county of Kings and State of New York, have invented a new and Improved Boat Propelling-Gear, of which the following is a full, clear, and exact description.

This invention relates to a boat driving-gear io operated by the arms of the boatman, and comprising a peculiarly-arranged propellershaft held beneath the bottom of the boat and fitted with a propeller for driving the boat in the novel manner to be set forth hereinafter. 15 This specification is the disclosure of one form of the invention, while the claims define the actual scope thereof.

Reference is to be had to the accompanying drawings, forminga part of this specification, 20 in which similar characters of reference indicate corresponding parts in both views.

Figure 1 is a sectional side elevation of the invention, and Fig. 2 is a detail view of the hand-cranks and the parts immediately con25 nected therewith.

a represents a boat, which may be of any build, either round or flat bottomed and with an after-body of any desired material. Mounted on the bottom of the boat is a pipe or tube 30 b, which stands vertically and carries a head c, strengthened by braces d, running to the bottom of the boat. This head c sustains a case or housing e, and it also has pedestalbearings f for a shaft g, that is mounted to 35 turn in the bearings and provided with handcranks h, by which it may be operated. The shaft g carries a bevel-gear g', which meshes with a similar gear i', attached to a shaft i, which passes down through the tube b and 40 through the bottom of the boat, as shown in Fig. 1. The lower end of the shaft i is stepped in a bearing k, which is fastened to the bottom of the boat by means of a bracket k' at its front end and an arm k² at its rear end.

Between the bracket k' and arm k² is located a bevel-gear i², which is fastened to the shaft i and meshes with a similar gear V, fastened to the propeller-shaft I. This shaft is mounted in the arm k² and in a bracket m, attached 50 to the rear of the boat and serving the func tion of a stern-post. The propeller-shaft extends horizontally outside of and beneath the bottom and has a propeller n of any desired form fastened to its rear end. A guard 0 is attached to the rear end of the bearing k and 55 to the lower end of the bracket m, the guard extending rearward beyond this bracket and carrying the heel of the rudder p. The guard 0 is strengthened at its middle by a brace o', attached thereto and to the bottom 60 of the boat.

By means of this gearing the power of the boatman may be applied very effectively to the propeller and the space within the boat is not taken up by the machinery, so that the 65 boat has the same carrying power and the same room as those adapted to be propelled by the usual oars. The parts k', k, and 0 effectively protect the working parts and prevent them from being injured by contact with 70 the earth or other obstructions to be met with in operating the boat.