US1689714A

US1689714A - Oar

Info

Publication number: US1689714A
Application number: US151490A
Authority: US
Inventors: Arthur H Burns
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-11-29
Filing date: 1926-11-29
Publication date: 1928-10-30
Anticipated expiration: 1945-10-30

Description

Oct. 30, 1928.

A. H. BURNS OAR Filed Nov. 29, 1926 gvwmtow A Burn/6' Patented Oct. 30, 1928.

UN TED TES ARTHUR H. BURNS, 0F PENN YAN, NEW YORK.

OAR.

Application filed November 29, 1926. Serial No. 151,490.

This invention relates to oars and more par-- ticularly to an oar employed for propelling row-boats and other small boats. At the present time row-boats are usually propelled byloars fittedinto oar looks at the sides of a row-boat and the operator occupies a seat in the boat forwardly of the oar locks and faces the stern or rear end of the boat. This has beenfound objectionable as the person rowing theb oat is facing rearwardly and,therefore, .finds it difficult to maintain a straight course and alsois liable to accidentally collidewith other boats or obstructions in a body of water.

I Therefore, one object ofthe inventionis to provide an oar which maybe operated 1n the usual manner but with the operator-facing the .bow oftheboatinstead of the stern.

. It has alsobeen .jfound that when an oar ot a conventional construction is in use it isliable toslip out of an oarlocktlmreby preventing proper rowing of the boat and also is liable to slipthrough the oar lock andfloat away from the boat if released without beinglifted from the lock or drawn inwardly. Therefore,

another object of the invention is;t0 provide theoar with an improved mountingby means of which itmay'bes'ecurelyatt ached to a boat but permitted to have proper gmovement impartedto it while rowing. a

' Another object of the invention is to allow a;relatively;long swingorworking movement to be imparted to theblade portion of an oar when a short movement is imparted to the handle end of the oar.

Another object of the invention is to permit the blade portion of the oar to be removed from its mounting and employed as a paddle if so desired and to also allow the blade and handle portions of the oar to be securely locked in the mounting against swinging movement relative to each other if it is necessary to use the oars in a boat having ordinary oar locks. V

The invention is illustrated in the accompanying drawing, wherein- Figure 1 is a view showing the mounting for the blade and handle portions of an oar partially in top plan and partially in longitudinal section, fragments of the blade and handle of the oar being shown in top plan;

Fig. 2 is a longitudinal sectional view taken on the line 22 of Fig. 1, and

Fig. 3 is a transverse sectional view taken on the line 33 of Fig. 1.

The car constituting the subject-matter of this invention includes a handle portion, indi= with" arcuate edges cut ,to pr .cated by the numeral 1, and a blade portion, indicatedby the numeral 2. The blade and andhandle portions of the oar are of a conventional construction and only fragments thereof have been shown in the drawing. Themounting for the blade and handle cludes a frame having upper and

lower plates

3 and 4 which may be formed of any'rneta-l. desired having suficient strength. These

plates

3 and 4 are disposed one above the other and connected by bolts v5 andfi which pass through openings formed in the upper plate 3 and are screwed into threaded :openings formed in the lower plate 4. Sleeves 7 aids are fitted upon

thebolts

5 and 6 and constitute spacers to retain theplates proper spaced relation to each other and prevent them froi n being moved too close together when the bolts aretightened.

' Handle and blade carriers 9 and 10 which, if desired, may be referred toas heads for the handle andblade are disposedibetween the plates of the frame] The blade" and handle carriers are forined of metal and are provided with openings Hand 12 through which the sleeves '8 pass. It will thus 'b seen thatthebolts 6 will constitute axl j-f the carriers and the sleeves Sfmay' constitute bushings for them. The inwardlyjfaeing end portions of the carriers are formed 13 and 14 which internieshso that, when 'the handle carrier is rotated, rotary motion will be transmitted to the blade carrier and a swinging movement imparted to the oar blade. By an inspection of Fig. 1, it will be seen that the circle of which the arcuate edge of the handle carrier forms a portion is of greater diameter than the circle of which the arcuate edge of the blade carrier forms a portion. Therefore, when the handle of the oar is swung a short distance a long swing will be imparted to the blade of the oar and a boat may be rapidly propelled through the water with a minimum exertion on the part of the operator.

In order to connect the mounting with the side of a boat, there has been provided a hinge leaf 15 having the usual openings therein to receive fastener screws 16 and also preferably provided with openings to receive bolts 17 of suflicient length to pass entirely through the gunnel 18 of a rowboat. The

pin or axle 20., Openings are drilled in the ovide gear teeth end portion of the hinge pin to receive securing keys 21, one of which is carried by a chain '22. The chain 22 is engaged with a ring 23 carried by theplate 3 so that, when the other cotter key is removed and .the hinge pin withdrawn, it may be suspended the chain and not be liable to drop into the water and become lost. Bearings 24 are rivetedor otherwise rigidly secured against the under face of the lower plate 4 of the frame 1n proper spaced relation to each other to be received between the hinge sleeves 19 and are formed with alined openings through which the'hinge pin passes, as shown in Fig. 3. It will thus be seenthat when the hinge pin is in place the frame ma be tilted transversely of the gunnel in ortfer to move the blade of an oar into and out of the water while rowing the boat.

If it is desired to employ the oar in connection with an oar lock of a conventional construction, the blade and handle portions of the oarmust be prevented from having swinging movement relative to each other. Therefore, I have provided pins 25 which are carried by chains 26 engaged with rings 27"car'ried by the upper plate 3 of the frame, and these pins 25 are adapted to be passed through

openings

28, 29 and 30 formed in the frame and blade and handle carriers when the blade and handle are disposed in alinement and the openings '29 in registry with the

openings

28 and 30. By this arrangement the blade and handle portion of the oar may be held stationary and the oar fitted into an oar lock of a conventional construction and operated in the usual manner. It should also be noted that, if desired, the bolt 6 which pivotally mounts the blade carrier may be removed and thereby release the blade and its carrier so that they may be withdrawn from the frame or housing and the blade portion of the oar employed as a paddle. I havethus provided an oar which may be operated in connection with oar locks of a conventional construction, as a bow facing oar, or as a paddle.

If desired, the gear forming portions of the carriers may be of the same size so that swinging movement of the blade and handle will be the same,

Having thus described the 1nvention,'I'

the sleeves on the last-mentioned fasteners and having arcuate inner edges formed with intermeshing gear teeth, bearing brackets secured against the. under face of the lower plate adjacent opposite said edgesthereof, v

a hinge leaf having sleeves spaced from each other along its upper edge to be disposed at the outer vsides of said brackets, means for securing saidleaf rigidlyto the gunnel of a boat, a pin passed through the sleeves and bearing brackets to pivotally connect I the frame and hinge leaf, and means engaged with'the ends of said pin and the upper frame plate to prevent loss of the pin.

In testimony whereof I' affix my signature.

ARTHURH. Bonus; 1,. 3.1-