US1510454A - Rowing mechanism - Google Patents

Description

Patented @et l, i924.,

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SUNKER ABAJI BISEY, OF NEW YORK, N. Y.

ROWING MECHANISM.

Application led February 25, 1920. Serial No. 361,154.

T all whom t may concern.'

Be it known that I, SUNKER ABAJi Brsnr,

a. subject of the `King of Great Britain, and

a resident of New York city, county and State of New York, .have invented certain new and useful `ln'iprovenients in Rowing Mechanism, of which the following is a specification.

My present invention relates to the propulsion of small boats and the objects of the invention are to combine in a single, practical and simple structure the eflicient features of a propeller or paddle wheel drive and the advantages of the exercise usually afforded by rowing.

Another object is to enable the operator to face forward and to easily control the boat at will.

rlhe invention involves a number of novel features of construction, combinations and arrangements of parts, all of which will appear in the course of the following specilica tion.

The drawing accompanying and forming a part hereof illustrates the invention em` bodied in but two of its practical forms, but it will be understood that modications may be made without departure from the. true spirit and scope of the invention as 30 defined herein.

ln the drawing Figure l is a top plan view of a boat equipped with my improved rowing mechanism.

Figure 2 is a broken side elevation of the same.

Figure 3 is a transverse sectional View on substantially the plane of line 3-3 of Figure 2.

Figure 4 is a transverse sectional View and Figure 5 is a broken longitudinal sectional view of a modilied paddle wheel construe tion.

The mechanism is illustrated as applied to a boat 7 having athwartship seats 8, the forward one of which is to be occupied by the operator.

ln the first construction illustrated the boat is driven by a propeller or propelling wheel 9 carried by a longitudinal shaft l0.

The rowing mechanism consists in the illustration of a swinging fork or yoke 11 pivotally supported on the transverse shaft 12 and carrying at its upper end the reversely facing handles 13. rThis oscillating handle mechanism is connected with the propeller shaft by suitable gearing, the same being herein shown as comprising a pawl la pivoted betweenthe sides of the fork and engaging a ratchet wheel 15 fast on the transverse shaft, said transverse shaft carrying a mitre gear 16 in mesh with a mitre pinion 17 on the propeller shaft. The propeller shaft may carry a fiy'wlieel 18 for maintaining the propelling operation as nearly continuous as possible.

The rowing operation is simulated by causing the handles to yield and to move laterally in the same fashion as the handles of the oars in ordinary rowing. For this purpose the handles are shown as provided with shank portions 19 pivoted at 20 at opposite sides of the upper end portion of the yoke and as yieldingly forced apart by the spring V2l. The approaching and separating movements of the handles ,may be limited by properly positioned stops, such as indicated at 22 and 23. The pivots 2O are arrange-d as indicated so as to permit the handles to yield only in a lateral direction.

ln using this construotiol'i the operator faces forward and propels the boat by a simple rowing movement, the handles having a tendency to spread on the forward stroke and to contract or come together on the rearward power-applying movement. @n the forward or idle stroke the pressure on the handles is relatively light and the spring 2l is of sufficient force to thrust the handles apart so that at the commence ment of the rearward or active stroke the handles are in their spread apart relation (Figure 3) but come together, as in Figure l, due to the stra-ight line pull being applied. This, therefore, gives all the healthful exercise ordinarily found in rowing, but without the disadvantages ordinarily accompanying such exercise. The boat can be held under proper control at all times and be driven faster or slower as desired.

Steering may be accomplished by means of a foot bar 24 pivoted at 25 and connected by tiller ropes 2G with the rudder.

In order that the operator may reverse the boat at will, l prefer to make the oneway drive connection reversible as by pivoting the pawl at 27 so that it may be swung to face in either direction and by providing the ratchet wheel with teeth which will be effectively engaged by the pawl in either relation. The pawl may be provided with a handle such as indicated at 28 so that it may be qnickly swung over 'from one position to the other when manipulating the boat in close quarters.

The propelling may be accomplished by means of a propelling or paddle wheel which is indicated at 30 in Figures 4 and 5 in which event the paddle wheel might be carried by a shaft 3l and might operate within well 32 provided in the bottom ot the boat, theV paddle wheel shaft being directly connected. by gears 33, 36, with the ratchet shaft 34. In this construction I have shown two ratchets 35 disposed at opposite sides of the drive gear. 36 and arranged to be engaged by two pawls or the two tongues of a single pawl 37 mounted on the fork and arranged to straddle the drive gear, such construction giving a balanced drive.

Theinvention, it will be seen, is simple and can be readily applied and gives' the full effectiveness of a wheel drive with all he beneiicial and usually more or less leisurely exercise afforded by rowing.

What I claim is:

1. Rowing` mechanism for boats comprising in combination with a propelling wheel and a ratchet wheel geared thereto, a swinging yoke, a pa-wl carried by said yoke and engaging the ratchet wheel, handles mounted onA saidyoke and yieldable laterally in simulation of the. spreading movement of a pair of oars, said handles having shank rowing handles into rotary movement at the propelling wheel a-nd means for thrustlng Jrhe U ing said handles awa-y from each other dursaid handles apart in the stroke of the handles in one direction. Y Y

3. Rowing mechanism Jfor boats comprising in combination, a propelling wheel, rowing handles pivoted to swing longitudinally ol the boat, drive gearing for transforming the oscillatory movement of the rowing handles into rotary movement at the propelling wheel, said handles being separable in simulation of the spreading movement of a pair of oars and stops for limiting the sepa-rating and approaching movements of the handles; j

Rowing mechanism for boats comprising` a shaft and means for supporting the saine transversely of the boat, a ratchet Yon from each other. a spring :tor yieldingly vforcing said `handles apart, a propelling wheel and gearing from the ratchet wheel to the propelling wheel.

5. Rowing mechanism `for boats comprising in combination, a propelling wheel,row ing handles mounted to operate longitudinally o't the boat, drive gearing for transforming. the back and forth movement ot' the propelling wheel and. means for 'orcing the stroke of both handles in the same direction.

t3. Rowing mechanism comprising aA rowing handles into rotary movement atV SUNKER ABAJI BISEYY.. I

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