US2533190A

US2533190A - Oarlock socket

Info

Publication number: US2533190A
Application number: US29390A
Authority: US
Inventors: Loretta L English
Original assignee: Individual
Current assignee: Individual
Priority date: 1948-05-26
Filing date: 1948-05-26
Publication date: 1950-12-05
Anticipated expiration: 1967-12-05

Description

P. M. GRIFFIN OARLOCK SOCKET Dec. 5, 1950 3 Sheets-Sheet 1 Filed May 26, 1948 V INVENTOR. Per: /7 6/7/79)? BY I ATTORNEY P. M. GRIFFIN OARLOCK SOCKET Dec. 5, 1950 3 Sheets-Sheet 2 Filed May 26, 1948 INVENTOR. Per-c M ri/fl'r? 47'70PNEY Ha J Dec. 5 1950 GRIFFIN 2,533,190

I OARLOCK SOCKET Filed May 26, 1948 s Sheets-Sheet 5 IN VEN TOR.

Per: /7. 6/7719 Patented Dec. 5, 1950 UNITED STATES PATENT OFFICE Percy M. Griffin, Rensselaer, N. Y.; Loretta L.

English executrix of said Percy M. Griffin, de-

ceased Application May 26, 1948, Serial No. 29,390

*1 Claims. (01. 9-26) My invention relates to boats which are pro pelled by oars, and particularly to improvements in oarlock sockets for such boats.

Oars, in order to function to the best advantage, should rotate about a vertical axis or, in other words, an axis which is perpendicular to the water surface. This will be apparent if it is borne in mind that when an oar is rotated about an axis in the rowing operation, it is angularly inclined to the axis and may be considered as the generatrix of a conical surface. If the axis of this conical surface is not vertical, the plane of the blade of the oar, when moving through the water is normal to the water surface in only one position, whereas it is desirable .to maintain the plane of the blade of the oar perpendicular to the water surface at all times when it is-im-.

mersed.

Since the sockets in which the oarlocks are secured are fixed to the top or near the top of the sides of the boat and the sides of the boat are invariably inclined upwardly and outwardly, the axis of the socket is usually parallel to the side of the boat or, in other words, inclined to the vertical. The greater the inclination of the axis of the socket to the vertical, the more difii cult it is to propel the boat by pulling or pushing the blade of the oar through the water.

Therefore, the principal object of my invention is to provide an oarlock socket which is adapted for attachment to the top of the side, or gunwale, of a rowboat and which is provided with means whereby it may be adjusted so that the socket proper is substantially precisely vertical irrespective of the inclination of the side of the boat to the vertical. Another object is to provide a socket having the above features which is particularly adapted for use with bow facing oarlocks of the character described in my U. S. Letters Patent No. 2,323,323, issued July 6. 1943.

I accomplish these objects by means of the novel elements and the combinations and arrangements thereof described below and illustrated in the accompanying drawings in which- Fig. 1 is an exploded, perspective View of the parts of my socket except the bolts which secure the parts together and showing a fragmentary portion of the gunwale of the rowboat;

Fig. 2 is an end view, partially in transverse section, of my socket showing parts thereof as sembled and clamped together;

Fig. 3 is a small scale end view of my socket showing it attached to a rowboat, a fragmentary portion of which is shown in section, together 2 with fragmentary portions of an oar secured i an oarlock of the type described in my said Let-. ters Patent;

Fig. 4 is an exploded, top plan view of a slightly modified form of socket without the bolts which secure the parts together;

Fig. 5 is a side elevation view of part of the device shown in Fig. 4, and as viewed through the broken plane 5-5; and

Fig. 6 is an end view of the socket shown in Fig. 4 attached to the top of the side of a rowboat, a fragmentary portion of which is shown in section.

Referring to the drawings-- l represents the side of the boat, and 2 is the top of the side of the boat, or gunwale.

The species of my invention illustrated in Figs. 1, 2 and 3, which is primarily designed for more or less permanent attachment to the boat, comprises a base 3 having angularly disposed portions 4 and 5 adapted to embrace the edge 6 of the gunwale. The portions 4 are provided with apertures I and the portions 5 with apertures 8 for the reception of screws adapted to secure the base to the boat. Integral with the top of the base are two, spaced, concave, cylindrical bearings 9, the bearing surfaces of which are provided with circumferentially-extending slots Ill adapted to pass the bolts I l, shown in Fig. 2.

The other principal part of my invention is the top or socket member, represented generally by the numeral [2, and which, as here shown, comprises a central portion l3 having a socket l4 therein adapted to receive the oarlock and which is provided at each side or end of the central portion 13 with a convex, cylindrical bearing l5 having a fiat top and which is adapted to be rotatably supported in one of the bearings 9 on the base member.

The top or socket member and the base member are secured together by means of the bolts I I which pass upwardly through the slotted openings H! in the bearings 9 and through the holes [6 in the bearings [5 of the top member, as best shown in Fig. 2.

By reference to Fig. 2, it will be apparent that, if the top or socket member be considered fixed with the socket vertical, relative movements of the top member and the base member between the position of the base member, as shown in solid outline, and the position shown in dotted outline, are possible. Since the depending portions 4, 4', as shown in Fig. 2, are parallel to the side of the boat when the socket is secured thereto, it will be apparent that, after the base member is secured to the side of the boat, the socket may be adjusted to vertical position by loosening the nuts ll on the bolts i! and rotating the socket member in the bearings of the base member, and clamping them together. By disposing the plane tops 53 of the bearings i5 at an angle to the plane of the top of the socket, a greater latitude of adjustment is provided because the top member l2, if necessary, may be reversed end for end in the bearings 9.

In Figs. 4, 5 and 6, I have shown a slight modification in my socket which adapts it more readily to be detachably secured to the side of the boat than the species shown in the other figures. Thus, the base member N has depending portions 2%] provided at the bottom with slightly inturned teeth 2! which are adapted to' bite into the side of the boat, and, instead of providing these depending portions with apertures for the passage of screws, the base member is provided, adjacent the top thereof, and above the depending portions with passages 22 adapted to receive bolts, such as shown at 23 in Fig. 6. Between the depending portions 28 and integral therewith, are cylindrical bearings 24 identical with the bearings 9 and having circumferentially-extending apertures 25 extending through the bearing surfaces thereof for the passage of bolts identical with the bolts I shown in Fig. 2.

The top or, socket member 26is identical with the top or socket member l2. In other words, the top member, shown in Figs. 4 and 5, is provided at each end of the socket with a flat top, convex, cylindrical bearingzi which is rotatably mounted in one of the bearings 2t and is provided with apertures 28 therethrough in registration with the slotted passages 25 through the bearings 24 for the reception of bolts, such as shown at H in Fig. 2, for securing the socket member to the base.

In order to secure the base member to the side of the boat I provide a clamping member 30, such as shown in Figs. 4 and 6. The member 35 is provided with depending portions 3i (see Fig. 6) similar to the depending portions 20 on the base member and which are provided with slightly inturned teeth 32 adapted to bite into the side of the boat opposite the teeth 2| on the base member. passages 33 in the member 39 and through the passages 22 in the member 19 and are provided with nuts 34 which may be tightened to clamp the base member to the side of the boat.

From the foregoing it will be apparent that my sockets may be properly adjusted to fit boats having the sides thereof inclined to the vertical throughout a wide range of angles, and while I have illustrated the socket I4 as being rectangular in cross section, because the bow-facing oarlocks disclosed in my Letters Patent aforesaid have a projection on the bottom which requires such a socket, it is obvious that, if common oarlocks are to be used with my sockets, the socket may be made cylindrical or any other shape necessary to accommodate the oarlccks.

3 While I have described my invention in its preferred embodiment, it is to be understood that the words which I have used are words of description rather than of limitation and that changes,

within the purview of the appended claims, may

be made without departing from the true scope and spirit of my invention in its broader aspects. 5 iWhat I claim is:

" 1. In an oarlock socket, the combination with a base element provided with means adaptin it The bolts 23 extend throughto be secured to the inclined side of a rowboat, of a second element provided with a socket therein adapted to receive an oarlock, means, including a longitudinally-extending bearin on said base element and a cylindrical member on said second element pivotally connecting said elements together and providing rotative movements of said second element about an axis extending in a direction at right angles, to the axis of said socket and fore-and-aft of said boat when said base element is secured to said boat; whereby the angular relation of said socket to the vertical may be adjusted irrespective of the inclination of the side of said boat; and means for securing said elements together in adjusted relation.

2. In an oarlock socket, the combination with a base element provided with means adapting it to be secured to the inclined side of a rowboat, of a second element having a socket therein adapted to receive said oarlock, means, including a, longitudinally-extending bearing on said base element and a cylindrical member on said second element connecting said elements together and providing relative movement thereof for adjusting said second element after said base element is secured to said boat to position said socket substantially vertical irrespective of the inclination of the side of said boat, and means for clamping said elements in adjusted relation.

3. A socket for an oarlock comprising the combination with a base element provided with means adapting it to be attached to the side of a rowboat and provided on the top thereof with a longitudinally arranged cylindrical bearing, of a socket element having a cylindrical portion rotatably mounted in said bearing, and means for clamping said elements together, said bearing being disposed parallel to the sides of the boat when mounted in position thereon.

4. A socket for an oarlock comprising the combination with a base element provided with means adapting it to be secured to the gunwale of a rowboat and having on the top thereof a longitudinally extending cylindrical bearing, said bearing being disposed parallel to the sides of the boat when mounted in position thereon, of a socket element rotatably mounted in said bearing; whereby said elements may be adjusted relative to each other; and means for clamping said elements together in adjusted relation.

5. A socket for an oarlock comprising the com bination with a base element provided with means adapting it to be secured to the top of an. inclined side of a rowboat, of a top element provided with a socket therein adapted to receive said oarlock when said base element is attached to said boat; said base element and said top element being provided with cooperating means, including a longitudinally-extending bearing on said base element and a cylindrical member on said top element adapting said top element to be moved relative to said base element when said base element is attached to said boat to position said socket substantially vertiportion at each end of said socket rotatably supported in said bearings; whereby the angular disposition of said socket to the vertical may be adjusted after said base element is secured to said boat and irrespective of the inclination of the side of said boat; and means for clamping said elements together in socket-adjusted position.

'7. A socket for an oarlock comprising the combination with a base element having angularly disposed portions adapted, respectively, to lie on top of the inclined side of a rowboat and against said side. and provided with means adapting said element to be secured to said boat; of a pair of longitudinally spaced cylindrical bearings integral with the top of said base element and provided with transversely extending slots in the bearing surfaces thereof, a top element provided with a centrally disposed socket therein and a cylindrical portion at each end of said socket rotatably mounted in said bearings, and bolts extending through said cylindrical portions and through said slots for clamping said elements together in fixed relation; whereby, when said base element is secured to said boat, the angular disposition of said socket to the vertical may be adjusted when said bolts are loosened and said elements may be clamped together in socket-adjusting relation by tightening said bolts.

PERCY M. GRIFFIN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,768,006 Seberg et a1 June 24, 1930 FOREIGN PATENTS Number Country Date 11,001 Great Britain July 13, 1895