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Publication numberUS533852 A
Publication typeGrant
Publication dateFeb 5, 1895
Filing dateJul 27, 1894
Publication numberUS 533852 A, US 533852A, US-A-533852, US533852 A, US533852A
InventorsJohn Smith
Original AssigneeEdward T
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Propelling mechanism for boats
US 533852 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(No Model.) 2Sheets-Sheet 1 J. SMITH.


No. 533,852. Patented Feb. 5, 1895. I

(NoMode'L) 2.Sheets-Sheet2 .v


PROPELLING MECHANISM FOR BOATS. 3 No. 533,852. Patented Feb. 5, 1895.


.To all whom it may concern:

free; and it has forits object to provide a mo- Y ful Motor for Boats, of which the following is tion, and the novel features thereof will be P T NT OFF CE.



SPECIFICATION forming part of Letters PatentNo. 533,852, dated February 5, 1895.

Application filed July 27, 1894.

Be itknown that I, JOHN SMITH, a citizen of the United States, residing at Aurelian Springs, in the county of Halifax and State of North Carolina, have invented a new and usea specification. v

My invention relates to motors for operatng boats adapted for use by fishermen, pleasure-seekers, and others in which it is desirable that the hands of the operator shall'be left tor adapted to be operated by an oscillatory lever, preferably in the form of a seat.

. Further objects andadvantages of the invention will appear in the following descripparticularly pointed out in the appended claim. 1

In the drawingszf-Figure 1 is a perspective view of a boat provided with a motor constructed in accordance'with my invention. Fig. 2 is a longitudinal section of thesame. Fig. 3 is a plan view, partly broken away to show the mechanism for communicating the motion of the operating lever to the paddles. Fig. 4 is a detail view of one of the paddles.

Similar numerals of reference indicate corresponding parts in all the figures of the draw-' ings.

1 designates the boat proper, which may be of any suitable or preferred construction, and mounted thereon by means of a rock-shaft 2 is the operating lever 3, which in the construction illustrated in the drawings consists of a seat for the operator.

Pivotally connected to the sides of the boat are the paddles 4 provided at their lower extremities with swinging-wings 5, which are adapted when the lower ends of the paddles are moving forward through the water to fold and move edgewise through the water, and when the lower ends of the paddles are moving toward the rear to be held in a position substantially perpendicular to the plane of the surface of the water, so as to give the desired impulse to theboat, after the manner of oars or other propelling devices.

Mounted in suitable bearings 6 and extending at its terminals beyond the side walls of the boat is a rotary shaft 7 carrying crank- Serial No. 518,766 (NomodeL) 1 wheels 8, and the crank or wrist pins 9 on said crank-wheels are connected by means of pitmenlO to the upper extremities of the paddles.

Mounted in suitable bearings adjacent to those of the shaft 7 is a driving-shaft 11 provided with a gear 12, which meshes with a pinion 13 on said shaft 7, and the driving-shaft is provided with a crank 14:, which is connected by means of a pitman 15 to a cross-bar 16, forming a part of the operating lever. In the construction illustrated, this cross-bar 16 is arranged in rear of the rock-shaft upon which the operatinglever oscillates, and therefore it will be seen that as the operating le ver, or in this casethe seat, is oscillated, mo-

tion is communicated by means of the pitman 15 to the crank of the driving-shaft, and thence through the intermediate gearing to the shaft 7, thus oscillating the paddles continuously during the movement of the operating lever. The pitmen by which motion is communicated from the crank-wheels of the shaft 7 to the upper extremities of the padwhereby when said operating lever is moved motion is communicated to the paddles without previously overcoming a dead center, I employ a contractile spring 17, preferably attached to the operating lever in advance of its fulcrum and connected in a suitable manner to the crank of the driving-shaft.

In connection with the above described mechanism I employ arudder 18, the staff 19 of which is provided with a lateral arm 20,-

and connecting this lateral arm to a hand-lever 21 is a rod 22, said hand-lever being arranged in front of the seat or operating lever. I also provide means for holding this steering-lever in a fixed position, the same consisting of a pivotal catch 23 provided with a terminal notch 24 and lateral notches 25 and 26. When the steering lever is engaged with the notch 25 the rudder is arranged in direct lon- ICO gitudinal alignment with the boat to cause a movement of the latter in a straight line through the water. When said lever is engaged with the terminal notch 24 of the catch the rudder is arranged in a deflected position to steer the boat toward the left or port side, and when said hand-lever is engaged with the notch 26, the rudder is adjusted in the opposite deflected position to steer the boat to the right or to the starboard side.

In operation, the operating lever is oscillated to cause a movement similar to that of a rocking chair, and this motion is communicated by the intermediate connections above described to the paddles, to cause acontinuous oscillation thereof, thereby imparting a forward or progressive movement to the boat.

It will be understood that in practice various changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit of the invention, or sacrificing any of the advantages thereof.

Having described my invention, What I claim is-- The combination with a boat, of pivoted oscillatory paddles mounted upon opposite sides thereof and provided at their lower ends with swinging-blades, a crank-shaft mountedtransversely in the boat and having terminal crank-disks connected by pitmen with the paddles, an operating lever mounted for rocking movement above said crank-shaft, this operating lever being constructed in the form of a seat, a driving-shaft connected by intermediate gearing with said crank-shaft, and provided with an intermediate crank, a pitman connecting said operating lever in rear of its fulcrum with the crank of the drivingshaft, and a contractile-spring connecting said crank with the operating lever in front of its fulcrum, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.



G. W. Bmcennsmrr, W. K. SMITH.

Cooperative ClassificationB63H1/32