US611436A - Oar-lock - Google Patents

Description

Patented Supt. 27, |898.

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(Applicationled Feb. 14, 1898-.)

(No Model.)

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JAMES A. MCGINLEY, OF SPRINGFIELD, MASSACHUSETTS.

OAR-LOCK.

SPECIFICATION forming part of Letters Patent No. 61:1 ,436, dated September 27, 1898. I u Application led February 14, 1898. Serial No. 610,168. (No model.)

To a/ZZ whom it may concern:

Be it known that I, JAMES A. McGINLnY, a citizen of the United States, and a resident of Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Oar-Locks, of which the following is a specification.

This invention relates to improvements in oar-locks, the objects of the invention being to provide an oar-lockwhich is most simple, cheap, and practicable of construction, and which when placed in its socket is susceptible of all desired play or oscillation by being free to partially rotate as the oars have their swinging movements, which is durable, without tendency to break out the woodwork at the rail of the boat in which the oar-lock is set, and which is of such a character that the oar-lock can never become detached accidentally to be lost overboard, although freedom of detachment, as purposed, constitutes one of the important advantages incidental to the invention.

The invention comprises, in combination with an oar-lock having a screw-threaded stem, an externally threaded cylindrical socket-piece or bushing adapted to be set and screw-engaged in the woodwork at the side or rail of the boat and having an internal screwthreaded socket in which the said threaded stem of the' oar-lock may engage, and specific means for enabling the externally-threaded socket-piece to be sunk within'the rail ofthe boat and to leave its upper end iiush with the top of the rail.

Reference is to be had to the accompanying drawings, in which my improvements in oarlocks are illustrated, and in which- Figure lis a sectional elevation showing the oar-lock as seated and screw-engaged in the specially-provided socket-bushing therefor, which latter is screw-engaged in a socket for the reception thereof provided in the side rail of the boat. Fig. 2 shows the bushing-l piece and boat-rail in perspective; Fig. 3 is a plan view of the bottom end of the bushing or socket-piece in Fig. 2. l

In the drawings, A represents the oar-lockl of the usual LJ shape, the same havingthe" stein a. The said stem a is provided with a comparatively coarse screw-thread.

B represents a socket piece or bushing, the same being both externally and internally screw-threaded, the internal screw-threads being for the reception and engagement therein of the screw-threaded stem of the oar-lock, while by the external screw-threads the said socket-piece has a screw engagement in aproperly-bored hole therefor in the rail proper of the boat or in a block bolted to the rail. The externally and internally threaded socketbushing is shown as tubular and of even diameter from top to bottom, provided at its lower end with a web or wall d2, having therein the slot d3,by means of which a screw-driver or like'impleinent entered through the top open end of the fitting .may be employed in its engagement with said slot to turn. the socket-bushing down to position in the hole therefor bored in the top of the rail to bring the upper end of the fitting just flush with the level of the rail top.

It will be apparent on a glance at the drawings that this oar-lock may be readily unscrewed when it is desired to remove it; that when in use the oar-lock is left about a half a rotation from seating-that is, the shoulder b at the base of the oar-lock yoke and where the stem joins this base is left just clear of the top of the socket-bushing-so that in the action of the oars the oar-lock may have all required oscillation about a line coincident with the axis of its stem, the screw-thread engagement which the stem has `with the socket bushing permitting this oscillation with the utmost freedom, and yet without any tendency of the oar-lock to shackle or wabble in its support; that the oar-lock could never become so far turned outwardly as to fall from its socket without being perceived; that there is nothing expensive of construction or liable to derangement, and that the parts may be cheaply made and most easily applied.

I am of course aware that a socket-bushing has been in different situations set by screwthread engagement within woodwork, and I am also aware that the screw-threaded shanks of lsone various contrivances have been'screwthreaded in socket-pieces, and I make no such broad claim as to conict with these; but

`What I do claim, and desire to secure by Letters Patent, is-

IOO

The combination with the rail of the boat internally-threaded bushing, substantially as having a hole bored therein, of the socketdescribed. 1o bushing B externally and also internally Signed by 1ne,at Springeld,Massachusetts, screw-threaded and provided with the bottom this 9th day of February, 1898.

5 Web d2 having the slot d5, and screw-engaged JAMES A. MCGINLEY.

in said hole, and the oar-look having the U- Witnesses: shaped top with the base-shoulder E) and the WM. S. BELLOWS,

screw-threaded stem screw-engaging in said M. A. CAMPBELL.

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