US1768006A - Oarlock - Google Patents

Description

June 24, 1930.

A. G. SEBERG E AL OARLOCK Filed Sept. 11, 1929 INVENTORV we? IILMQ WITNESSES Patented June 24, 1930 means ARIN a. sense Ann HAROLD M. senses. or BAGINIE,

VIISGONSI-N Application filed September 11,

This invention relates to an improvement in boats and more particularly to an car look. I

It is an object of the invention to provide a roller bearing oar lock that facilitates the rowing of a boat, while constructed of a minimum number of parts.

It is a iurther object of the invention to provide an oar lock that can be converted to use for sculling a boat.

It is a further object of the invention to provide an car look so constructed that on the pull. stroke of the oar, a roller bearing is caused to engage one side of the device and on the p nsh stroke engaging the opposite side.

A full and complete understanding of the invention may be obtained from consideration of the "following detailed description taken in connection with the accompanying drawing forming a part of this specification, in which Figure 1 is a perspective view of our new and improved oar lock attached to the gunwale of a boat and showing the oar in position,

Figure 2 is a view partly in cross-section taken on the line 22 of Figure 1, and

Figure 3 is a view partly in section taken on line 3-3 of Figure 2. I

In Fig. 1 of the drawing there is shown a portion 1 of the gunwale of an ordinary row boat to which my new and improved 1 oar lock is attached by means of an angleipon plate 2 and screws 3.

The plate 2 has a raised or struck-up portion 1 having an opening through which projects a vertical pin 5 having a roller 6 thereon. The pin 5 which tapers slightly upwardly for a portion of its length, is provided near its upper end with an annular groove defining a pair of shoulders 7, between which an antifriction roller 6 is rotatably mounted on the said pin.

My clamp for securing the oar allowing for the up and down and back and forward motion of the car is composed. of a semicircular upper sleeve member 9 and a semicircular lower sleeve member 10 each 8 and yet 1929. Serial no. 391,888.

having flange 11 against which the collar of the oarahuts.

The sleeve member 10 has a lower extension portion 12 which is -substantially V- shapedin' cross-section and is adapted to fit over the pin 5 and to ride against and rock on. the raised portion a of the plate 2. This is best illustratedin Figs. 2 and 3 of the drawing. 1

For fastening the two sleeves together and yet allowing for adjustment so that the car can be used for sculling, we provide bolts 18 having wing nuts 1a. When the device is to be used for sculling, the Wing nuts 14: are loosened and the lock nuts 15 screwed upwardly toward the wing nuts to provide greater space between the sleeve members, to allow the oar-to assume a more nearly vertical position which is desirable in sculling.

hus it will be seen that of our device for propelling a boat that with the pull stroke of the oarthe lower portion of pin 5 and the roller 6 bears againstone side of-the member 12. This operation is shown in dotted lines in Fi 2 of the draw;

ing. Then as the oar is lifted out of the water and rotated and pushed forwardthe extension member 12 will tilt backward on the raised portion .4: and will ride against member 12. I-t'will'also-be readily seen that due to the V shape of the member 12, the oar can be raised up or down as well as being rotatable on the pin 5.

From the foregoing it will be seen that we have assembled a device that is simple, cheap to manufacture and easily installed, which will effectually prevent dislodgment of the car and yet allow for the free and easy movement necessary in rowing.

We claim:

1. An oar lock comprising a sleeve adapted to receive an oar and bear against the collar thereon, said sleeve consisting of substantially semi-circular upper members, means for adjustably connecting said semi-circular members together, an angle-iron plate adapted to be secured to the gunwale of a boat and having a struckup portion in its upper in the operation 1 the pin and roller, theopposite side of the 3 and 7 lower 1 face, said struck-up portion carrying an upwardly projecting pin, the lower sleeve member bearing on said struck-up portion, said pin extending into the lower sleeve member and having a friction roller thereon, said pin and roller adapted to engage the opposite sides of the lower member in the back and forth movements of the oar, and also permit a pivotal movement of the oar.

2. An oar lock comprising a sleeve adapted to receive an oar, said sleeve consisting of an upper and a lower semi-circular member, means for connectlng the upper and lower members together, means for adjusting the members relatively to each other, said lower member having a hollow downwardly projecting V-shaped extension, said extension having an opening in its lower end for receiving a pin, whereby to pivotally support the oar and to permit its back and forth movements.

3. An oar lock comprising a sleeve adapted to fit on an oar, said sleeve comprising upper and lower, semi-circular members, an angle iron plate adapted to be secured on the gunwale of a boat, an upwardly projecting pin secured in the upper web of said plate, a friction roller mounted on said pin, said pin and roller pivotally supporting said lower member and adapted to engage the op posite sides of the lower member to permit rocking motion of the oar.

4. An oar lock comprising a supporting plate adapted to be secured to the gunwale of a boat, an upwardly projecting pin se- 7 cured in said plate, an oar holding sleeve including substantially semi-circular upper and lower sleeve members, an integral guide sleeve carried by the lower member for guide ing said pin, and adjusting means connecting the upper and lower sleeves, whereby to adjust the opening between said sleeves for varying the pitch of the oar for sculling a boa I o ARIN Gr. SEBERG. Q HAROLD M; SEBERG.

Images