US1275737A - Oar-lock. - Google Patents

Description

(I. H. PIERCE, A. E. OVERSTHEET 6: R. McCUNE.

OAR LOCK.

APPLICAT10N FILED MAY 2. IQHL 1 ,Q?5,'? 3'? w Patented Aug". 13, 1918.

Kiwi/Z, J/ 010-33 UNITED STATES,

PATENT OFFICE.

CHARLES H. PIERCE, ARTHUR 12:. ovnas'rannnhnn ROYAL L. McGUNE, or SAVANNAH,

GEORGIA.

OAR-LOCK.

Specification of Letters Patent.

Application filed May 2, 1918. Serial No. 232,089.

To all whom it may concern:

Be it known that we, CHARLES H. PIERGE,

ARTHUR E. Ovnnsrnnnr, and ROYAL L. MCCUNE, citizens of the United States of America, and residents of Savannah, in the county of Chatham and State of Georgia, have invented certain new and useful Improvements in Oar-Locks, of which the following is a specification. y

This invention relates to boats and particularly to oar locks.

An object of this invention is to provide an oar lock with means for clamping the oar, and for trunnioning the oar clamping member so that the oar may oscillate vertically while the oar lock is rotatably seated with relation to the boat.

A further object of this invention is to provide an oar clamping member which is adaptable to oars of different sizes and which will permit the application or removal of an oar and yet will prove effective and hold the oar against dislodgment from the oar lock or clamp should it be released by the boatman, thereby insuring against the loss of oars while, at the same time, affording free movement incident to the operation of rowing or the manipulation of the oars.

With the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed. 1

In describing the invention in detail, reference will be had to the accompanying drawings forming part of this specification, in which like characters denote corresponding parts in the several views, and in which- Figure 1 illustrates a view in side elevation of an oar lock; and

Fig. 2 illustrates a side view.

In these drawings, the oar lock comprises a shank 5 and a yoke or fork 6, which is of the general type of open oar locks in common use, although in employing such locks in connection with clamping mechanism to be presently described, the yoke or fork is wider than it would ordinarily be if it were designed to receive the car without the intermediate or clamping means.

Each arm of the fork has a slot 7 in it, and each of the said slots has a trunnion 8 therein, free to rotate or move axially. The. oar clamping aws 9. and 10 are connected together at their lower ends by a pivotll, and the said jaws are of arbitrary configuration so as to embrace or partially e1nbrace an oar. In the present embodiment of the invention, the jaws havetheir free upper ends curved as shown at 11, the curved surfaces being provided to facilitate the application of an oar to the jaws as may be done by resting the oar on the aws at their upper ends and forcing it inward to press the jaws apart until suflicient clearance is attached to permit the oar to slide into the space between the jaws. The force necessary to separate the jaws must be such as Will overcome the tension of springs 12 and 13 which encircle the trunnions and are interposed between the jaws and the arms or forks 6.

By reason of the construction indicated, it I will be apparent that the oars may be oscillated vertically on the trunnions 8 and that they may be oscillated horizontally 011 the shaft 5 which is supposed, of course, to be applied to a suitable bearing for the oar look. It will be obvious, furthermore, that the jaws will be pressed into engagement with the oar by the springs 12 and 13 and it is the purpose of the inventor that the tension of these springs will be sufficientto frictionally retain the oar against longitudinal movement should the oarsman release the oar through accident or design.

The structure is comparatively simple and copies at this patent may be obtained for live cents each, by addressing the Commissioner of Patents,

Washingtoml). G. l

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