US2377724A - Oarlock - Google Patents

Description

June 5, 1945. E. J. SLIZEWSKI 2,377,724

- OARLOCK V Filed Sept 7, 1944 2 Sheets-Sheet 1 FIG. 2.

INVENTOR.

Ernest T. Eliz-awski ATTORNEYS.

June 5, 1945. E. J. SLIZEWSKI 2,377,724

' OARLOCK Fild Sept. 7, 1944 2 Sheets-Sheet 2 FIG. 5;

E-I TIEET T. 5112 awski oarlock adap distance from main'in such position until readily movedsalong morel-th'anline contact. r n

Another object is to provide oarlocks whichj55 v 3 Patentecl June 5, 1945 "UNITED STATES PATENT OF Ernest JQ Slizewski, Eagle River;

John D Gilligan,

WisQassignor tow a Rhinelander',,Wis..

Application September 7, 1944;}se1 ia1 Noose- 054:3

This invention relates to and more particularly to oarlocks of River type which are secured to the loom.

0a11locks,,which; are secured to the loom of, the oar, are usually connected by boring afsuitable through the loom; intowhich theoarlock hole pin is inserted; This tends to. weakem the: car, and, if the hole is not. bored true, another hole mustbe' providedwhich causes further weakness. Since such, oarlocks are intended to be permanently fixed" to theo ar, if the oarsman desires the" spoon enddto the oarlock, the change must be made at thenexpense of causing increased.

weakness in theoar, aslijs apparent.

. to increase ondecreaseuthe length of car from r An importantobject of the invention is to provi-d ea jnovel oarlock, which. requires no holes,

socketsio-rthe like to be provided in the oar andf tliefioarlockxmay bepermanently or detachablyl securedYto the oar. l

Another important object is to provide such per portion of theshank attachment: ofJtheoarlock tomars'of varions an oarlock, which may be readily secured to looms.

ofdifiierent diameters. Such diameters vary with looms of 1% inches, 1% inches and 2 inches.

Still anotherimportant object. is to provide an 'ed tobe disposed at any desired the spoon end and which willrethe length ofthe loom to another fixedtposition. A major object is to provide a detachable oar lock; consistingof only six parts and including a y clampin single means for adjustably and firml the oarlock to the loom. v n Another major object is to provide a clamping means fora removable oarlock, which means in cludes a; single bolt and athumb-nut, disposed out of' the way, the positions of the thumb-nut being such that itis substantially recessed, so that lines and the like willfnot tangledlby it. l

Yet anotherimportant. object is to. provide a detachableoarlockjwhichis relatively inexpensive;

the major portions may be;

metal and readily formed to, manufacture since stamped from suitable tojtliedesired contours.

Atvery important obaect is to providea detachable oarlock. depending upon clamping means which willnot. be subject toexcessive wearsince it, comprises but few parts i and the metal, surfaces oii moving'parts in contact Witheach other are-,limited 'andi can be Wood of the oar, such as be caught. and

saidto-represent onl'y little l 71-01mm, (01. 3-25)? oarlocks on rowlocks,

the North in, transportation, storage and the like,

, Other objectsand advantages of the 1 invention williba apparent during the course offthe following, detailed dscriptionof the invention; taken connection with. the? drawings:

Figure 1? is. a tical cross, section of the. novel oarlock 1Figureizistatsideelevationtthereofg a Figure 3j is an elevation ofoneot a pair of. clamping mmbersforming} a part of. the new oarlock.- V y I j no Figurai is, as fragmentary elevation of lthe upe of;thevoar1ock.-. it v Figures. 5; to 7, inclusive are, views 4 illustrating sizedjlcioms; I 1 y In. the J d'frawings, wherein for the. purpose of, illustration is, showmajpreiierred embodiment of.

the invention. andwherein similar. reference char- 1 l 'actersl designate corresponding parts throughout,

3 away, from each other a socket'or thelike in the. gunwaleof as is wellTknown inuthe. artgand the, head.. Ili

theseveral views,',the letter A designates the noveli oarl'ockg, and the letters,B,, C and D oars, having; loomsof; difierentcircumferences. l l

Thefnovel. olarlock includes a support, to, loomn aging laws I I, means. [2 providing. a, pivotal; and"rockingconnection between the; jaws, I l and the n support lllj,, and1,adiustable coupling; means I 3' for; permitting moying, off the jaws; toward; and. and; securing them ma clamping;positionabout, the loom of an oar the example shown, the support L0} comprisesa cylindrical shank, l5 and a head. -l6 ,the latter being wider thanjthe shanks, diameter and" this.

headm'ay be polygonaljhaving opposite substanQ-e tially verticalsideyjfaces I], and. opposite. substantially verticaljen'd. faces I 6; from the faces I 1 extends a substantially honz'ontal pin-accommodating,bore L9. There. may. be a suitable verticaL perforation zll. from the upperface .2 lflo fithe head litqthebore L9 for the; passage of oil or] the like. to the bore.' Qf.oourse,.; the; shank I5 is; adapted. to. extend vertically; into; the boat,.

projectsabovet the gunmalet l There are two, like, loom-enga in jaws-Ma each ior med' ofa thin sheet of suitablemetaL. and h inclu n a rl n li l a -e a i rti n?- 25; "lowerfheadeengaging portionnz fi and; intergmediate portion, 217} 25, of each] law is arcuate or outwardly bowed; a t at 28; to conform somewhat to the circumterence;

may/be. folded so aslto decreasesize for; econonnrl accompanying drawings forming apartof this specification, and in which partial elevationv and partiaIlver-e I 8.1 Through the head i The loom-engaging portion:-

2 r of the loom of an oar. However, the contours of this novel detachable oarlock is such that the jaws may grasp and securely hold looms of various circumferences. It will be seen in Figure 1, particularly, but also in Figures 5 to '7 inclusive, that the vertical plane of the outermost portion of the outer face 29 of the loom engaging portion extends outwardly beyond any other portion of the oarlock. This feature is important, aswill be "subsequently explained.

As for the lower head-engaging portion 26 of the jaw II, this is also arcuate, but inwardly bowed as at 30. This contour of the jaw, is also important. Extending through this inwardlybowed portion 26 is a pin-accommodating perfoe ration 3| which is oval, with theJlargest diameter extending longitudinally of the .jaw, as may be seen in Figure 3. Preferably, the center ofthe perforation 3| is at the crest of the bow. The intermediate portion 21 of the jaw l I may be slightly arcuate as at 32 and is provided with a bolt-accommodating perforation 33 which may also be oval, and disposed with its longest diameter longitudinally of the jaw II. Surrounding the perforation 33 is a lock washer-accommodating depression 34 in the outer face of the jaw, as shown in Figure 3.

The means I2 providing a pivotal and rocking connection between the jaws II and support It comprises a pin 35 extending loosely through the bore l9, this pin 35 having reduced; cylindrical, projectingends 36, so that shoulders 31 are provided at the juncture of the ends 36 and intermediate portion 38 of the pins 35within the bore I9. These projecting ends 36 support the jaws I I, one jaw on each projecting end, by extending through the perforations 3I and outwardly of them. Itshould be noted that the smallest diameters of the perforations 3 I are only slightly larger than the diameters of the ends 36and less than the diameter of the intermediate portion 38 of the pin 35, so that the'jaws retain the pin from dropping out, since the shoulders 31 contact, but only slightly more than line contact, the inner faces of the jaws at the bowed portion 26. This construction of bowed portions 26, oval perforations 3i, pin ends 36 and substantially vertical faces I'I contacting the bowed portions 26 in little more than mere line contact, permits both pivoting and rocking of the jaws II, as-is now apparent. Pivoting Because of the limited contact of moving parts there is little wear and noise.

Due to the outward projection ofv the upper loom-engaging portion 25 of the jaws II and the position of the thum-nut 43 and head 42 of bolt 40 with respect to this outward projection, the thumb-nut is substantially recessed and shielded by the outward projection of the jaws, as is apparent in Figures 1 and 51:0 '7 inclusive, the wings are not apt to be accidentally struck and the nut loosened nor are fishing lines, etc., apt to become caught thereon. a

- Oil, may be introduced into the vertical perforation 29 in the head I6 to lubricate any and all the surfaces of the oarlock, which normally contact each other during the rowing movement of the oarlock. 1

Various changes may be made to the form of invention herein shown and described without depermits the jaws to move with the loom upon dip- I ping the oars and rocking permits the oarlocks to be attached .to looms of various diameters, as in Figures 5 to '7 inclusive.' Of course, this last is partly dependent upon the oval-shaped perforations 33 of the intermediate portions 21 of the jaws II, as will be next explained.

Adjustable coupling means I3 for permitting other movements of the jaws and securing them in clamping positions about looms, may be a simple bolt 40, with shank 4|, head 42, and, preferably, a thumb-nut 43. The shank 4I extends through the oval-shaped perforations 33 with the head 42bearing against one outer face of one jaw I I and the thumb-nut 43 bearing against the outer face of the other jaw. Tightening of the thumb-nut will cause the jaws to rock toward each other and loosening the thumb-nut 43 will cause them to rock away from each other, because of the position of the rocking surface and outward projection of the upper loom-engaging portion 25 of the jaws which is the heavier and largest portion of the jaw structure. Accommodated in the depression 34 surrounding the perforation 33 may be a lock washer, or the like.

parting from the spirit of the invention or scope of the claims.

I claim:.

1. In a detachable oarlock, a support including a head; a pair of jaws, each including a loomengaging portion; means pivotally connecting said jaws to said head; and means to adjustably secure said jaws to a loom, said last-named means being disposed above said first-named means, be-

low said loom-engaging portions and Wholly inwardly of the vertical planes of the outermost lonand wholly inwardly of the vertical planes of the outermost longitudinal faces of sai'd portions.

3. In an oarlock, a support, including a head provided with a substantially horizontally-disposed bore; a pin extending loosely through said bore and projecting outwardly of each end therei of; a pair of jaws having arcuate, loom-engaging portions at their upper end sections,arcuate portions at their lower end sections rockably engaging said head, and an oval perforation in eachof the last named arcuate portions, with the projecting ends of said pin extending through said perforations;-and means to rock said jaws upon said head, so as to move said loom-engaging portions toward and away from each other.

4. In an oarlock, a support, including a head provided with a substantially .horiz ontally-disposed bore; a pin extending loosely through said bore and projecting outwardly of each end thereof; a pair of jaws having arcuate, loom-engagingportions at their upper end sections, arcuate portions at their lower end sections rockably engaging said head, and 'an ovalperforationin each of the last named arcuate portions, with the projecting ends of said pin extending through said perforations; andmeans, to rock said jaws upon said head, so as to move said loom-engaging portions towards and away from each other, said means being disposed above said head and below said loom-engaging portions of said jaws. 5."In an oarlock, a support including a head having a pair of substantially flat, opposite,'vertical faces and a horizontal bore extending from oneof said faces to the other'face; a pin loosely extending through and projecting outwardly of each end of said bore; a pair'of jaws one carried by one projecting end of said pin and the other carried by the other projecting end of said ing said projecting ends of said pins, the smallest pin, each jaw having an upper loom-engaging diameter of said perforations being less than the portion-and a lower bowed portion with subdiameter of the intermediate portion of said pin, stantially the center of the bow of said bowed with substantially the' center of the bow of sa1d portion being in contact with sa1d face at the 5 bowed portion being in contact with sa1d face area of said face adjacent said bore; and means at the area of said face adjacent said bore; and to rock said jaws, upon the bowed portions theremeans to rock said jaws, upon the bowed portions of, over said faces, so as to move said loom-enthereof, over said faces, so as to move said loomgaging portions toward and away from each engaging portions toward and away from each other. I 10 other.

6. In an oarlock, a support including a head 7. In a foldable, detachable oarlock, a support having a pair of substantially fiat, opposite verincluding a shank and a head, with said head tical faces and a horlzontal bore extending from g1 eater in Width than the diameter of sa1d shank one of said faces to the other face; a pin loosea pair of loom-engaging jaws; means securing ly extending through and projecting outwardly 15 said jaws to said head at opposite sides thereof, for of each end of said bore, the projecting ends pivoting and rocking of sa id jaws, each of said of said pinbeing of reduced diameter; a pair of jaws having a perforation intermediate its ends; a jaws, one carried by the projecting end of said bolt extending loosely through said perforations pin and the other carried by-the' other projectand projecting from one of them; and a nut for ing end of 'said pin, each having an upper loom- 20 said bolt. engaging portion and a lower bowed portion, ERNEST J. SLIZEWSKI.

provided with an oval perforation accommodat-

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