US1464390A - Oarlock - Google Patents

Description

Aug. 7', 1923.

A. P. MALLOYyJR OARLOCK Filed March l4 1922 Wi /E mu in. INVENTOR WITNESSES ATI'ORNEY Patented Aug. 7, 1923.

entire rates ANGUS 1?. MALLOY, J11, 0F SEATTLE, WASHINGTON.

OARLOCK.

Application filed Mareh 14, 1922.

T 0 all whom it may concern:

Be it known that I, ANGUS P. MALLOY, J12, a citizen of the United States, residing at Seattle, in the county of King and State of Washington, have invented a new and useful Oarlock, or which the following is a specification.

This invention relates to oar looks.

The object is to provide an ear lock for use in connection with ordinary row boats, which is simple in construction, cheaply manufactured and readily applied to the gunwale of the boat and to the staff of the oar in coacting relation.

Another object is to provide an ear lock comprising coacting parts for attachment as above stated, which will permit of the necessary up and down rocking movement of the car, as well as the forward and backward movement of the same during the process of rowing, while the ear is held from longitudinal movement through the lock in an outward direction beyond a certain predetermined point, and at the same time the lock will permit of the inward movement '01 the oar longitudinally, when'passing other boats or obstructions, or when making a landing.

A further object is to provide an oar lock which will permit of the above described movements of the oars, and at the same time permit the latter to be swung to bring the blades inboard, the rower being at liberty at any time to release his grasp on the oars without any danger of the oars escaping from the locks, the latter being so constructed and applied as to eliminate all rattling or other noise as well as preventing any weakening or wearing of the ear during continued rowing.

A full and complete understanding of the invention may be obtained from a consideration of the following detailed description, taken in connection with the accompanying drawing forming a part of this specification; it being understood that while the drawing shows a practical form of. the invention, the latter is not to be confined to strict conformity with the showing thereof, but may be changed or modified, so longas such changes or modifications mark no ma terial departure from the salient features of the invention, as specifically pointed out in the appended claims.

In the drawing, in which similar reference Serial NO. 543,700.

characters designate corresponding parts throughout the several figures Fig. 1 is a detail perspective view of a portion of the gunwale of a boat having the improved oar lock applied thereto and show ing the ear in position.

Fig. 2 is an enlarged detail elevation of the lock, partly broken away and illustrating the mounting of the oar lock in the gunwale of the boat and the mounting of the oar in the lock.

Fig. 3 is a similar view taken at right angles Fig. 2, the same being partly in section. and partly in elevation.

Fig. 4 is a detail view of a split or slotted washer for retaining the car look in the gunwale socket.

111 Fig. 1 ol the drawing, there is illustrated a portion 1 of the gunwale of an ordinary row boat which may be constructed in any well known manner, the said gunwale being provided at the proper point or points with relation to the rowers seat, with a vertically disposed bore or passageway 2, into which is adapted to be snugly fitted the tubular bearing portion 3 of a metallic socketmember having the usual attaching plate 4 located at its upper end and provided with suitable countersunk apertures for the reception of screws 5 which securely hold the plate and socket in position in the gunwale.

The bore of the socket or bearing 3 is adapted to receive the shank 6 of an upstanding yoke 'Z, which is adapted to freely turn inthe same but is prevented from any lateral or rocking movement therein, thus obviating rattling or other noises at this point. I i

The lower end of the shank 6 extends below the lower end of the socket and is pro vided with an annular groove 8 into which is adapted to be slid the opposite portions of a split or slotted washer 9, shown in Fig. 1, and having an offset 10 provided with an aperture 11 through which is secured the end of a short length of rawhide cord or chain 12, the other end of which is secured to the underside of the gunwale 1, as inclicated at 13. The opposed edges of the slotted portion of the washer engage within the annular groove 8 of the shank 6, with sutlieient friction as to retain said washer in place, and thus prevent the yoke from becoming accidentally unseated in the socket; and the washer, by reason of the cord or throats 15, the end portions of the yoke arms, at each side .of thethroats 15 being further provided with -alined passageways for thereception of a pin 16, which bridges the space between the opposite sides of the throat.

Diametrically opposite trunnions 17 of a metallic ring 18 are adapted to rest in the openings let of the yoke,'and to normally lie therein withthe said ring 18 in parallel ism with the arms of the yoke 7, that is, with the ring upright; and .the upper portions of the trunnions are removed to provide flat faces 19,,being .substantially D,- shapedin cross section thus reducing the diameters of the trunnions in an up and down direction, while, in a horizontal direction, the trunnions are of the full diameters of the openings 1.4, and are,thus prevented from upward movement therein, so long as the ring 18 is in this normal position. \Vhen introducing the ring 18 into the seats in the yoke or in removing the same therefrom, it is only necessary to swing the ring ninety degrees about the trunnions when the flattened or reduced faces 19 will permit the trunnions to be moved upwardly through the throats 15 and the ring entirely separatedfrom the yoke. Y

The external diameter of the ring 18 is such as to freely rotate between the upstanding arms of the yoke, and it will be seen that in the event the ringis accidentally.

turned the necessary ninety degrees to bring the flattened face 19in position to be ele vated through the throats 15, the pins 16 will prevent the passage of thesame.

A sleeve composed of identical, semi-circul r members 20, having external diameters "o ewha ess than the internal diameter of the ring 18 is adapted tobeisecnred to the staff of the oar 21 in a position to bringthe handle 2201? said oar in the .proper location to be grasped by the hand of therower, when the said sleeve is positioned in the said ring 18. Fach semibircular member 20 is provided intermediate its length with an outstandingflange 23 located somewhat nearer to the inner endof the sleeve than the :outer endthereof, the said flangesterminating at opposite sides of each semi-circular menrlber in longitudinally disposed ears 23 arranged parallel with the,abutting edges of the members, and provided with suitable apertures for the reception ,of screws 24 provided with nuts 25, which may ing action. In order to facilitate the action of the screws 24, the semi-circular flanges 23, which are in alinement and form substantially a continuous flange around the staff of the oar, are provided with V-shaped notches 26 which .permit the semitubular portions ,ofthe sleeve to flex and to be inipinged againstthe staff so that the sleeve may not movein any direction upon the oar.

The application of the sleeve sections 1 or membersQO to the staff of the oar does not in any way weaken the same, as does the ordinary method of fastening leather bands to the staifjof the, oars, and since thelongerportions of said sleeves lie within and extend through the ring 18, allthe wear is sustained thereby and the flange 23 being located at the inner side of said ring prevents any outward movement of the oar through the ear lock. V c v,

The shank 6.0f the yoke and the trunnions 17 of the ring provide, respectively, for ahorizontal swinging of the oar about a vertical, axis and for an up and down rocking movement of the oar about, a horizontal axis,,thus providing a universal. joint which permits ofall the movements necessary in the operation of rowing. It will be understood that the necessary feathering of thebladeof the oar may bereadily accomplishedby reason of the loosely fitting sleeve20 within the ring 18, which per mits the staff of the oar to be turned by ,the

customary wrist movement about its own longitudinal axis.

3 are in place, the shank 6 of'the yoke is introduced into said socket and locked therein by the washer 9. The ring 18 is turned,

in ahorizontal position with the flat portions of the trunnions 17 in, a vertical-positiontoallow the trunnions to slide into the openings 1 1 through the throats 15,

when. the;ring .is turned ninety degreesinto an upright position and the pins 16, introduced, By sliding the staff of the oar in wardly through the ring 18, the; semi-,cir cular, members 20 of the sleeve may then be applied in proper position of the staff of the oar, with the flanges 23 bearing against the inner face of the yoke 7, when the oar may not accidentally ,be lost from theoar look, as will be seen. By removing the sleeve sections 20,.thestaff of the oar. may beslid:

In assembling the look, after thesockets ment of the oar therefrom while freely permitting of all necessary movement of the oars in the operation of rowing as well as permitting the blades of the oars to be drawn inboard when desired.

What is claimed is 1. An oar lock comprising a yoke having a vertically disposed shank adapted to be pivotally mounted in the gunwale of a boat, means engaging the shank to permit it to rotate but prevent its Withdrawal the upper ends of the arms of the yoke having alined openings with entrance throats, a ring located between the arms of the yoke and provided with diametrically opposite trunnions adapted to rest in the openings of the yoke arms, said trunnions having flat tened faces reducing the diameters thereof and permitting the trunnions to enter the throats of the yoke-arm openings only when the ring is turned horizontally and pins bridging the throats to prevent the removal of the trunnions when the ring is in this position.

2. An oar lock comprising a yoke adapted to be mounted in the gunwale of a boat, the upper ends of the arms of the yoke having alined openings with entrance throats, and a ring located between the arms of the yoke and having trunnions normally resting in the openings of the yoke arms, said trunnions being D-shaped in cross section permitting the trunnions to enter the throats of the yoke arm openings only when the flat faces of the trunnions are in a vertical plane.

3. In an oar lock, the combination with an oar, of a sleeve composed of two substantially semicircular members, means for connecting the members together, and flanges integral with and extending laterally from said members and substantially perpendicular to the longitudinal axis of the oar, the flanges of both members being in alinement so as to provide a continuous flange, said flanges having \l-shaped notches to increase the flexibility of said members.

4. In an oar lock, the combination with an oar, of a sleeve composed of two substantially semicircular members, means for connecting the members together, and flanges extending laterally from said members, the flanges of both members being in alinement so as to provide a continuous flange, and means provided on said flanges to impart flexibility to said members.

5. An oar lock comprising a yoke having a vertically disposed shank adapted to be pivotally mounted in the gunwale of a boat, the upper ends of the arms of the yoke having alined openings with entrance throats, a ring located between the arms of the yoke and provided with diametrically opposite trunnions adapted to rest in the openings of the yoke arms, said trunnions having flattened faces reducing the diameters thereof and permitting the trunnions to enter the throats of the yoke-arm openings only when the ring is turned horizontally, pins bridging the throats to prevent the removal of the trunnions when the ring is'in this position, and semicircular sleeve members having alined annular flange sections adapted to contact with the inner face of the yoke toprevent outward movement of the sleeve relative to the ring, said sleeve sect-ions having means for clamping the same around the stafl of an oar.

In testimony that I claim the foregoing as my own, I have hereto aflixed my sig nature.

ANGUS P. MALLOY, JR.

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