US1476987A

US1476987A - Bow-facing oar

Info

Publication number: US1476987A
Application number: US634426A
Authority: US
Inventors: Larsen Andrew
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-04-25
Filing date: 1923-04-25
Publication date: 1923-12-11
Anticipated expiration: 1940-12-11

Description

Dec. 11, 1923. 1,476,987

- A. LARSEN BOW FACING 01m Filed April 25 1923 2 Sheets-Sheet 1 Dec. 11, 1923.

- A. LARSEN BOW meme 01m Filed April 25 1925 2 Sheets-Sheet 2 Jim/6727??" iz/lf l i 421992;, 454% Q Patented Dec. 11, 1923.

UNITED STATES ANDREW LARSEN, OF FOX LAKE, ILLINOIS.

BOW-FACING one.

Application filed April 25, 1923.

To all whom it may concern:

Be it known that T, ANDREW LARSEN, a citizen of the United States, residing at Fox Lake, in the county of Lake and State of Illinois, have invented certain new and useful Improvements in Bow-Facing Oars, of which the following is a specification, reference being had to the accompanying drawings, and to the reference characters marked thereon, which form a part of this specification.

This invention relates to bow-facing oars and consists in the devices and combination of devices herein illustrated, described and claimed.

In that form in which I have chosen to embody my invention as illustrated in the accompanying drawings:

Fig. 1 is a plan view of a row boat equipped with my invention.

Fig. 2 is a detail plan view showing one oar in position, the drawing being on a larger scale.

Fig. 3 is an elevation of the detail, looking from the inside of the boat in the vertical plane indicated by the dotted line 3--3 of Fig. 2.

Fig. 4 is a vertical sectional view, enlarged, of another detail, the section being taken in the plane indicated by the dotted line 44 of Fig. 2.

5 is aside view, partly in vertical section, also enlarged, of the handle portion of the oar and its mounting, the section being taken in the plane indicated by the dotted line 5-5 of Fig. 2.

Fig. 6 is a perspective View, enlarged, of one of the oar locks.

In said drawings, a row boat of conventional design is indicated as a whole at A, the oar lock block at a, on each gunwale b. In each block a are two spaced apart

vertical openings

1, 1, each lined with a brass, tubular bearing member 2. The oar lock shown detached in Fig. 6, comprises a casting B, preferably of malleable iron, having a bearing shank 3 adapted to fit vertically within the bushing 2, and a somewhat enlarged head 4. This head is recessed from its outer end to form a socket bearing 5 for the ball 6, hereinafter described and also has a U- shaped slot 7 cut through its side wall, as shown clearly in Figs. 5 and 6. The shank 3 is horizontally bored at 8 to receive a removable locking pin 9, which is passed through the block a and holds the casting Serial No. 634,426.

B in position. It is to be noted that the relation of the bore 8 and the slot 7 are such as to cause the slot to face the inside of the boat when the casting B isin position for use. A chain 10 or other device may be used to fasten the locking pin 9 to the boat.

The oar is in two parts, the handle member as a whole being designated by the letter C and the blade member as a whole by the letter D. These members are each provided with a casting E, carrying a ball 6 by which each is operatively supported on the casting B; the castings E being secured by rivet bolts 11 or other appropriate means. Each casting E is positioned with respect to the end 0 or the end (i of the oar members C and D respectively, so that itsprojecting lug member 12 will extend beyond said ends 0 and 03, thereby affording means for attachment to link F, the ends of which are pivotally connected to the lugs 12.

This pivotal connection is shown more fully in Fig. 4 and consists of the following details. A bearing stud 13 rises integrally from one face of the lug 12, its lower rounded portion being covered by a tubular brass or bronze bushing ring 14 and its upper exterior portion being screw threaded as shown at 15. The link F is suitably apertured to fit over and have swinging bearing on the bushing 14, in which position the link F is held by a crown nut 16 and an interposed washer 17. A locking or keeper nut 18 on the stud 13 bears upon a washer 19, a lug 20 bent downwardly from the washer- 19 entering one of the top recesses in the crown nut 16. It will be noted that the lower marginal part of the lock nut 18 is recessed at 21 and a lug 22 on the washer 19 is bent upwardly to fit one of said recesses after the keeper nut 18 has been screwed firmly in position. From this description it will be manifest that, once set, the nuts will not work loose in use and that there will be sufficient play to permit the necessary relative movement of the link end on the lug 12.

The ball 6 is integrally joined to the casting E by a conical shaped connecting neck 23, the latter being relatively small in diameter near the ball 6. The head 4 of the casting B is chamfered away at 24 to receive the neck 23 and afford a bearing therefor when, in use, the blade member D is tilted to dip into the water. This cut-away portion 24 is therefore complemental in shape to the exterior surface of the neck 23 and it i'slocated diametrically opposite the slot 7. The latter is sufficiently large to permit the neck 28 to loosely rest the-rein When it is desired to remove the member D from the Water and to ship ears in the boat A, as indicated in Fig. 0, and in dotted lines in Fig. 5. I

The bearing stud 13 is provided With a vertical oil cup aperture 25 to receive cotton Waste 26 or other suitable packing and the lower end of this aperture is provided With a radial conduit 27 leading through the side Wall of the roundedlower portion of said stud 13. Oil or' other suitable lubricant poured into the aperture 25 Will therefore find its Way to the interior of the bushing 14 and thence to the other adjacent bearing surfaces to prevent rusting and facilitate easy movements of these parts.

From the foregoing it will be clear that a person seated in the boat It may grasp the handles 28 of the ear member C and manipulate same to dip, pull, feather, recover, dip, pull, &c., in the conventional manic..- of rowing, While facing the bOW of the boat, and that the parts constructed as shown and described Will operate perfectly, easily and Without binding or cramping.

It Will further be observed that the blade 29 of the ear member D, while it may be dipped in the Water, Will not be so di J-ped as to place the blade unnecessarily deep in the Water, because the extent ofinclination of the member D is limited by having the neck 23 contact With the cut-away portion 24 of the head 4.

I claim as my invention:

1. A bow-facing oar comprising a handle member and a blade member, a casting secured to the handle member having an inte gral lug projecting beyond the end of the handle member, a ball, a tapered neck connecting the ball with the under side ofsaid casting, a similar casting secured to the adjacent portion of the blade member, a link pivotally connecting the two castings through their respective projecting lugs, a pair of oar locks for said castings, each having a socket bearing for the ball, and cooperating means on the casting and ear lock for limiting the amount of dip given to the blade member.

2. A bow-facing oar comprising a handle member and a blade member, a casting sc- =cured to the handle member having an. intetgral lug projecting beyond the end of the handle member, a ball, a tapered neck connecting the ball with the under side of said casting, a similar casting secured to the ad jacent portion of the blade member, a link pivot-ally connecting the two castings through their respective projecting lugs, 11 pair of ear locks for said castings, each h aving a socket bearing for the ball and cooperating means on the casting and ear lock permitting the casting member to swing into a position at right angles with the longitudinal or vertical axis of the car lock.

3. A bow facing oar comprising a handle member, blade member, a casting secured to each member, a link member connecting the two castings, each casting being provided with a projecting hall member, a pair of oar locks each having an enlarged head member recessed to -form a socket bearing for the ball member, and provided with a Ushaped longitudinally disposed slot cut through its side wall.

In testimony that I claim the foregoing as my invention I afiiX my signature in the presence of two Witnesses, this 23rd day of April, 1923.

ANDREW LARSEN.

Witnesses TAYLOR E. BROWN, B. L, MAoGnEoom