US813896A

US813896A - Oar-lock.

Info

Publication number: US813896A
Application number: US28188305A
Authority: US
Inventors: George Holt
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-10-09
Filing date: 1905-10-09
Publication date: 1906-02-27
Anticipated expiration: 1923-02-27

Description

No. 813,896. PATENTED FEB. 27, 1906. G. HOLT.

OAR LOCK.

APPLICATION FILED our. a, 1905.

I m/e 212 021 George H075- PATENT OFFICE.

GEORGE HOLT, OF SPICER, MINNESOTA.

OAR-LOCK.

Specification of Letters Patent.

Patented Feb. 27, 1906.

Application filed October 9, 1905. Serial No. 281,883.

To all whom it may concern:

Be it known that I, GEORGE HOLT, a citizen of the United States, residing at Spicer, in the county of Kandiyohi and State of Minnesota, have invented certain new and useful Improvements in Oar-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others sln'lled in the art to which it appertains to make and use the same.

My invention has for its especial object to provide an improvement in oar-locks for rowboats; and to this end it consists of the novel devices and combinations of devices hereinafter described, and defined in the claims.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several vlews.

Figure 1 is a view in side elevation of my improved oar-lock. Fig. 2 is an edge elevation of my improved oar-lock. Fig. 3is avertical section taken on the line 20 90 of Fig. 1 with some parts shown in full and others broken away. Fig. 4 is a vertical section taken on the line all 00* of Fig. 2 with some parts shown in full and others broken away, and Fig. 5 is a horizontal section taken on the line 00 m of Fig. 4.

The numeral 1 indicates the yoke of the improved oar-lock, provided with a stem 2, that is formed with an annular groove 3, below which it is flattened or notched at 4. The lower wall of the groove 3 terminates in camsurfaces 5, the purpose of which will presently appear. As shown in Fig. 2, the stem 2 of the yoke 1 is bent at an angle to the plane of the yoke 1, the purpose of which will also presently appear. This stem is arranged to work in a socket or sleeve 6, having the extended bearing-plate 7, and is secured to the gunwales of a boat (not shown) in the ordinary or any suitable way. Said stem 6 is also provided with the internal lateral tongue or lock-lug 8.

The normal position of the oar-lock is shown in the drawings, and the inside of the boat (not shown) would be toward the right with respect to Fig. 2. Of course when the oars are in working position they project downward with respect to their outer ends, and by bending the yoke of the oar-lock outward with respect to the boat a much better bearing for the oars is secured. It also provides an arrangement for preventing the lateral displacement of the oar-lock when the oar is in use. It also prevents the use of the oars in the oar-lock when the said oarlock is turned at one hundred and eighty degrees to its operative position. The prongs of the yoke of course would project inward with respect to the boat. WVhen the oar-lock is turned at an angle of one hundred and eighty degrees to its operative position, the notch 4 will permit the stem 6 to be passed into said socket 2; but when turned into the operative position the groove 3 receives the tongue or lock-lug 8 and holds the oar-lock against vertical displacement.

The purpose of the cam-surfaces 5 is so that the tongue or lock-lug 8 will move readily into thegroove 3.

The above-described device is of comparatively small cost, but is efiicient ior'the purposes had in view.

What I claim, and desire to secure by Letters Patent of'the United States, is as follows:

1. In an oar-lock, the combination with a socket, of a yoke having a stem fitting said socket, said stem being bent at an angle to the plane of said yoke, and means for locking said oar-lock against endwise movements with respect to said socket, when the said oar-lock is in an operative position, substantially as described.

2. In an oar-lock, the combination with a socket, of a yoke having a stem fitting said socket, said stem being bent at an angle ,to the plane of said yoke, means for locking said oar-lock against endwise movement with respect to said socket, when the said oar-lock is turned into an operative position, and arranged to be removed from said socket when the said oar-lock is turned into an inoperative position, substantially as described.

3. In an oar-lock, the combination with a socket, of a yoke having a stem fitting said socket, said stem being bent at an angle to the plane of said yoke, and said stem and said socket having a tongue and groove arranged to interlock, when the oar-lock is turned into an operative position, substantially as described.

4. In an oar-lock, the combination with a socket, of a yoke having a stem fitting said socket, said stem being bent at an angle to the plane of said yoke, said stem and said socket having a tongue and groove arranged to interlock, when said oar-lock is turned into an operative position and arranged to permit endwise movement of said oar-lock when the same is turned in an inoperative position, I tongue 8, to permit endwise movement of substantially as described. said oar-lock when the same is turned in an 5. In an oar-lock, the combination with a inoperative position, substantially as desocket 6 having a tongue 8, of a yoke 1 havscribedj 5 ing a stem 2 fitting said socket 6, said stem 2 In testimony whereof affix my signature 15 being bent at an angle to the plane of said in presence of two witnesses. yoke 1 and having an annular groove 3 adapt- GEORGE HOLT. ed to receive the tongue 8 01' said socket 2 Witnesses: when the oarlock is in an operative position, WILLIAM OLsoN,

10 and having a notch 4 adapted to clear said DAVID HAGENSTEIN.