US831971A - Oar-lock. - Google Patents

Description

\ No. 831,971. I PATENTED SEPT. 25, 1906.

G. E. MONROE. OAR LOCK.

APPLICATION FILED 00130, 1905.

(I; v I flarhjjffllorzrog. tness/p0g lnventpr. y 5 b v1 y 4 I Attorneys PATENT OFFICE.

CHARLES ELLIOT MONROE, OF CHASE, KANSAS.

OAR-LOCK.

Specification of Letters Patent.

Patented Sept. 25, 1906.

Application filed October 30, 1905. Serial No. 285,100.

To all whom it "may concern:

Be it known that 1, CHARLES ELLIOT MON- ROE, a citizen of the United States, residing at Chase, in the county of Rice and State of Kansas, have invented a new and useful Oar- Lock, of which the following is a specification.

This invention relates to oar-locks, and has for an object to provide a device of the class embodying new and improved features of convenience, utility, and efficiency. A further object of the invention is to provide an oar-lock which will automatically feather and square the car under the simple fore-and-aft movement of the handle.

Specifically, the object of the invention is to provide an oar-lock embodying a pivoted thole-pin, to which is pivoted an arm capable of an angular movement in a plane normally parallel with the length of the boat and through one-fourth of a circle. The arm carries clips pivoted thereon and which clam the loom of the oar, so that as the handle is pushed aft the car is automatically turned so that the blade is in a horizontal position, and as the handle is pulled forward the car is again automatically turned with the blade standing in a vertical plane.

With these and other objects in view the present invention consists in the combination and arrangement of parts, as will be hereinafter fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size, and other minor details may be made without departing from the spirit or sacrificing any of the advantages of this invention.

In the drawings, Figure 1 is a perspective view of the oar-lock with the oar feathered. Fig. 2 is a perspective view of the oar-lock with the oar squared in operative position.

Like characters indicate corresponding parts in both of the figures of the drawings.

In its preferred embodiment the improved oar-lock forming the subject-matter of the invention comprises a bearing-bracket 10, proportioned and providedwith means to secure to the gunwale of a boat, as 11. l/Vithin the bracket is pivoted the spindle 12 ofthe thole-pin and with a washer 13 encircling the spindle and furnishing a bearing for the shoulder 14 of the pin. Above the shoulders 14 the pin is provided with abracket embody- Fig. 2.

upper end of the pin extended to a head somewhat above the bracket, as at 17.

Between the ears 15 and 16 the arm 18 is pivoted, as by the bolt 19, and provided with an enlarged head 20, proportioned to rest upon the extended ends 21 and 22 of the ears, and with a shoulder 23, positioned to rest upon the head 17 when the arm is moved about its pivot 19 to a vertical position, as in Upon opposite sides of the head 20 are disposed the clips 24 and 25 and pivoted, as by the bolt 26. The clips are provided at their ends with a bolt 27, by which they may be clamped upon the loom 28 of the oar, which is provided with the usual blade 29. The several bolts 19, 26, and 27 are respectively provided with wings 30, 31, and 32, by which the several parts may be adjusted without the use of tools.

With the parts disposed as in Fig. 1 the blade is feathered, and at the end of the return stroke the blade touches the water and a pull upon the handle automatically turns the arm 18 upon the pivot 19 to the position shown in Fig. 2, thereby squaring the blade or turning it to a vertical or operative position. At the end of the stroke the usual push upon the handle for the return stroke will move the arm again to the position in Fig. 1, and the blade may be returned through the water, if preferred, as it is held accurately horizontal and in position to offer but slight resistance to its passage. It will thus be seen that the'boat may be rowed without any dip of the oars, the motion, if preferred, being simply a fore-and-aft movement. If a stiff oar is preferred, the thumbbolt 19 may be tightened to hold the arm in the position shown in Fi 2, when the car may be used in the usua manner, the pivoted thole-pin and the pivot 26 permitting the usual motion.

Having thus described the invention, what is claimed is- 1. An oar-lock comprising a bracket, a thole-pin pivoted within the bracket, parallel laterally-extending arms movable with the pin and having reduced ends, a coupling-link pivoted between said arms, and a clip pivoted to the coupling-link, said clip adapted to swing in a plane at right angles to the plane of movement of the coupling-link.

2. An oar-lock comprising a bracket, a thole-pin pivoted therein, a head mounted ing the spaced ears 15 and 16 and with the upon said pin and movable therewith, paral- ICS lel supporting-arms radiating from the head and having reduced. ends, a connecting-link pivoted between the arms and adapted to be supported in raised and lowered positions by the head and the reduced ends of the arms respectively, and a clip pivoted to the supporting-link, said. clip and link being adapted to swing upon their pivots in planes at right angles to each other.

3. An oar-lock comprising a bracket, a thole-pin pivoted therein, a head upon the pin and movable therewith, parallel supporting-arms extending laterally from the head and having reduced ends, a connecting-link detachably and pivotally mounted between the arms and adapted to be supported in raised and lowered positions by the head and the reduced ends of the arms respectively, and a clip detachably and pivotally connected to the connecting-link, said clip and link being adapted to swing upon their pivots in planes at right angles to each other.

In. testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

CHARLES ELLIOT MONROE.

Witnesses:

RoBT. KIERKENDALL, C. E. DREW.

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