US1990114A - Oar lock - Google Patents

Description

C. O. BURR OAR LOCK Filed May 19, 1933 2 Sheets-Sheet l INVENTO ATTORNEYS C. O. BURR Feb. 5; 1935.

OAR LOCK- Filed May 19, 1933 2 SheetsSheet 2 Patented Feb. 5, 1935 ATE T OFFICE v r c 3. 3 OC CharlesO. Burr, South Non-walk, Conn. ApplicatibnMay 1911932, Serial'No. 671.843

" r 4 Claims.

This invention relates-to-new anduseful improvements in oar:1ocks andhas for anobject to provide .an oar lock and mounting therefor: in-

cluding means whereby the; oar lock1 may bese i cured in place so that it will not be lost and yet may be readily'detached.v r p Another object is to provide an oarlock including meanswhereby an oar will-,not slide out of the car lock and be lost shouldthe operator let go of the oar.

A further object is to provide an oar lock which isso constructed that two oars-may be placed in it at the same time and clamped or locked together so that they may be easily carried.

Other objects and advantages will become apparent from a consideration of the followingde tailed description taken in connection with the accompanying drawings wherein a satisfactory embodiment ofthe, invention is shown. However, it will be. understoodthat the invention is not limited to the'details disclosed butincludes all suchvariations and modifications as fall within the spirit-of. the invention andthescope of the appended claims.- i l i In the drawings:

Fig. 1 is an elevational view showing the car lock alone;

Fig. 2 is an elevational view showing a portion of a boat witha mounting bracket securedto the gunwale and the stem of the oar lock secured in said bracket; v

Fig. 3 is a horizontal sectional viewtaken sub stantially along the line 3-3-of Fig. 2; a

Fig. 4 is a vertical sectional view taken substantially along the line 4--4 of Fig. 2;

Fig. 5 is a view somewhat similar toFig. 4 but showing the locking action;

Fig. 6 is an. elevational view illustrating the positioning of a pair of cars in a single car look in order that the cars will be securedtogether and more conveniently carried;

Fig. '7 is a view similar to "Fig. 6 but showing the two oars in place in one car look; I

Fig. 8 is a sectional view taken substantially r alongthe line 8--8 of Fig. 7;

. Fig. 9 is an elevational view on a reduced scale and showing two complete cars in one .oarlock' in position for convenient carrying in onehand; "and Fig. 10 is aperspective viewillustratingthe de vice as mounting a sculling oar.

Referring in detail to the drawings, the improvedoar lock includes a body substantially in the form of a forkcomprising arms 16 and 17- connected at their inner ends by a bight portion 18 from which extends a mounting stem or shank 19 at the upper end or 1 which is a washer-like portion '20- providing a bearing shoulder or surface. A laterally extending lug 21 is carriedby the innerend portion of the stem 19 and the inner end portions of the arms 16 and 17 are rounded as at 22 to provide a rest and bearing surface for an oar. Qutwardly-of said portion 22- the arms for a;dist ance extend in substantially parallel relation as regards their inner surfaces as at. 23.

;Th e outerends of the arms are'inturned to extend toward one another as at 24 providing .a restricted throat or opening 25 and innershoulders;2 6 the purpose of which will later appear. Connected with the bodylo, as to the arm 16 thereof, is one endof a flexible connecting means here shown asa chain 27. The outer end ofthis chain 27 is connected with a closed eye 28 formed atone end of a coil spring 29. This spring 29 has. its other end portion bent to form a hook 30 adapted to be engaged with the eye 28 at certain times as .will'be hereinafter fully set forth.

. -A bracket generally designated 31 is adapted to receive the stem 19 of the oar lock and mount the oar look. This bracket is secured to the gun- Wale 32 of a boat a portion of which is generally designated 33.- Bracket 31 includes atop flange 34 and side flanges 35 through which screws 36 are passed .to secure the bracket in place. Extending vertically through the body of the bracketis an opening 37 and the bracket is also provided with akey-way 38 in one side of said opening 3'7. The stern 1909113118 oar lock is mounted in said opening 37- and when inserting the stem in the opening' the key- -way 38 accommodates the laterally extendinglug 21. Figs. 2 and 4 clearly illustrate that sten 1 19 isof a length to extend entirely throughthe bracket so as to dispose the lug 21 below the lower edge of the bracket when thestem is fully, in place. With the parts thus positioned the bearing portion 20 rests or bears on the upper or top flange 34 of the bracket. 1

When the car look isthus assembled on the bracket the former is'given a partial turn so as to carry the lug out of registry with the keyway" 38- and preventcasual movement of the oarlock out;.ofthe bracket. This is the position the lock normally occupies when the car is used for rowing. Thus the oar'has-to be'brought to a position substantially parallel with the side -of the boat in order to remove the lock from the bracket.-; ies an additional safety ieature, the bra ket i prov dedi he sep e e 3 extending across or transversely of the keyway 38 and a pin 40, such for example as a split cotter pin, as the spring action of itsindividual parts will frictionally retain it in the opening, is provided for insertion through this transverse opening. As will be apparent from Fig. 5 when the pin 40 is in place the oarlock may not be removed. from the bracket since should the lug 21 register with the keyway 38 movement of the lug through the keyway will be prevented by the pin 40. A chain 41 or other flexible means is connected at one end to the pin and at the other end to the bracket 31 as by a ring 42.

The opening represented by the throat 25 between the outer ends of the arms of the fork is such as to permit of the passage of a blade 43 of an car and such as to prevent the passage of a loom portion 44 of an oar. It will, therefore, be seen that when the oar lock has been secured to the bracket by the insertion of the pin 40 through the opening 39, an car in the lock may not be lifted out of place by any casual movement or by any casual impetus which may be given to the oar and such as is likely to happen in rough water. During use it is the loom of an oar which rests on the surface 22 and since the loom portion of the oar may not bemoved upwardly through the throat 25 and since the oar lock is secured to the bracket by the lug 21, and more particularly by said lug and the pin 40, it will be apparent that there is little danger of the oar getting out of place.

An oar is positioned in the lock, preferably by inserting the blade portion through the look as suggested with the oar (A) in Fig. 6. When the car is in place the spring 29 is wrapped about "the loom of the oar and the hook 30 of said spring engaged with the eye 28 thereof as also illustrated in Fig. 6. The length of the spring 29 is such that it must be stretched or tensioned when it is secured about an oar whereby it tightly grips the same so that the oar may not slide through the spring. The spring should be fairly stiff and strong so as to firmly grip the oar and not easily slide thereon. It will, therefore, be understood that the spring gripping the oar and being secured to the oar lock by the chain or other flexible means 27, the car and oar lock are secured together so that the oar will not be lost shouldthe operator release it. Also, with this particular arrangement the oar lock may remain secured to the oar even when the latter is not in use as when in a boat house or the like.

From the foregoing it will be seen that when the car lock has been secured to the bracket 31 it is impossible for the oar lock to casually become disconnected from the bracket. However, on removal of the pin 40 from the opening 49 the car look may be lifted out of the bracket after turning it so the lug 21 is in alignment with the key way 38. Further, the restricted throat portion 25 prevents separation of theoar and look by vertical movement of the loom portion of the car in the lock. An additional advantage of this particular oar lock resides in the fact that it may be used to secure two oars together so that they may be conveniently carried. This last arrangement is clearly illustrated in Figs. 6,7, 8 and 9, the method of inserting the oars in the lock being illustrated in Fig. 6.

To secure two cars together by the lock, one car, such as the oar (B) of Fig. 6, is positioned in the lock and then the second oar is inserted into place, the throat 25 of the lock permitting of the passage of the blade 43 of the second oar which is designated (A). When the two oars are in place the oar (B) will be in engagement with the inner surface of the bight portion 18 of the look while the oar (A) will be bearing against the inturned portions 24 of the lock as clearly illustrated in Fig. 8. The outer end portions of the blades of the oars will be in engagement as shown in Fig. 9 while the loom portions of the oars will be at a slight incline to one another. The two oars may then be carried in one hand by gripping one of the oars, the weight of the oars and the cramping action resulting from the holding of only one of them causes them to be tightly locked together. This will leave the other hand free for carrying other articles.

Fig. illustrates the application of a bracket 31 to thestern of a boat whereby the oar lock is mounted to" accommodate a sculling oar 45. The structure of the bracket and car look of Fig. 10 does not differ from that of the other figures, the only difference residing in the fact that in Figs. 2througli 5, the device of the'invention is applied to the .side of a boat for rowing whereas in Fig. 10' his applied to the stern of the boat for'sculling. r

Having thus set forth the nature of my invention,'what I claim is:

1. In an oar-lock, a body to receive the loom of an oar, a stem extending from said body to mount the same, a coiled spring to encircle and grip the loom of an oar independent of said body, and flexible means connecting said spring to said body.

2. In an'oar lock, a body to receive the loom of an oar, a stem'extending from said body to mount the same, a coil spring, hook means on the ends of said spring, "said spring adapted to be wrapped about the loom of an oar and have its ends hooked together whereby the spring encircles and grips the oar,'and flexible means connecting said spring with said body.

3. In an oar lock, a body including a pair of side arms connected at their inner ends by a bight portion and having theirouter end portions extending toward one another and partially closing the space between them and providing an entrance of a width less than the diameter of the" loom of an oar, said arms between the bight and inturned end portions spaced apart a distance at least equal to the diameter of the loom of an oar, and each of said arms between said portions of a length at least equal to twice the diameter of the loom of the car whereby the 100m portions of a pair of'oars may be simultaneously clamped inthe car look between its bight portion-and the inturned ends of its arms.

4. In an car look, a body including a pair of side arms connected at their inner ends and curved to receive and hold the loom of an car while used in'rowing, said arms having substantially straight portions extended upwardly above said curved portions with'their outer end portions extending inwardlytoward each other and spaced "apart a distance less than the diameter of the loom of an oar, and said substantially straight portion being of sufficient length for insertion of the loom of a second oar over that of an car in the curved portion so that both oars are retained'in' thelock by the inwardly turned end portions, and neans for mounting'said lock.

CHARLES O. BURR.

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