US692845A - Ball-bearing rowlock. - Google Patents

Description

No. 692,845. Pat'ent'd Feb. Il, |902.

T. H. GARRETT, 1R. BALL BEARING RDWLOCK.

(Application filed Nov. 11, 1901.)

(N0 Model.)

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N E V. m WM 0 Mmm' UNITED STATES PATENT OFFICE.

THOMAS H. -GARRETT3 JR., OF AUBURN, NEW YORK.

BALL-BEARING RowLocK.

sPEc'rFIcATIoN forming part of Letters Patent No. 692,845, dated February 1 1, 1902.

Application filed November l1, 1901. Serial No.8L840. (No model.) y

To @ZZ whom t may concern; f

Beit known that LTHOMAS H. GARRETT,J r.,

a citizen of the United States, residing at Auburn, in the county of Cayuga and State'of New York, have invented a certain new and useful Ball-Bearing Rowlock, of which the following is a specification. The principal object ofthe prese-nt invention is to provide a silent, attractive, antifriction, reliable, and efficient rowlock which shall be of simple construction.

To these and other ends hereinafter set forth the invention comprises the improve-v ments to be presently described and finally claimed.

The nature, characteristic features, and scope of the invention will be more fully understood from the following description,taken in connection with the accompanying drawings, forming part hereof, and in which- Figure l is a perspective View illustrating a rowlock embodying features of my invention with the fork removed. Fig. 2 is a view drawn to an enlarged scale and illustratingv the same principally in central section; and

Fig. 3 is a perspective view illustrating a por# tion of an oar, together with a f ork which is applicable for use in connection with my invention.

In the drawings, l is a sleeve supported byv ball-bearings and adapted to receive the fork 2. The fork 2 and the sleeve are arranged to fit together, so as to constitute when in use, in effect, one piece. Of course the fork can be removed from the sleeve, as is frequently desirable in use. To accomplish this result, the sleeve is made tapering, so that the fork fits it detachably, yet lwhen inserted in place there is sufcientfriction between the parts to cause the sleeve to turn with the fork 2. The sleeve 1 itself is supported upon ballbearings. For this purpose use is made of Suitable ball-races 3 and 4, which are shown as mounted in a socket 5 and secured to a suitable tubular piece or part 6, which is held by a set-screw '7 against rotation in the socket 5. Use is also made of a ball-race 8, fittedso as to turn with the sleeve l, and of a ballrace 9,-similarly fitted to the sleeve. The

flaring upper end of the sleeve l serves to hold the ball-race 8, and the ball-race 9 is held by thefpair of nuts lO and ll,of which the nut 11 serves as a jam-nut. In the drawings the socket 5, as shown, is` l provided with a bracket l2, by means ot' which it can be secured to the gunwale, although it is obvious that the vsocket may be otherwise fitted for attachment orsecured to the boat or to an outrigger, if desired. Similarly the fork 2 is shown as connected with the portion 13 of the oar, although it is obvious that the oar may simply rest in or be otherwise adapted to the fork. r

The mode of operation of the described rowlock may be described as follows: In use `tho fork 2 is inserted in the sleeve l, which it ts quite tightly, so that when the oar is moved backward and forward the fork and the sleeve turn as one piece. kThe parts'S and 9 also turn with the sleeve and fork, and as they turn they ride on the balls lll, which in turn bear upon the ball-races 3 and 4, which are fixed in the socket, which in its turn is secured to the boat. The resultof this is that theoar Vturns very lightly and easily and with practically no noise, which latter quality is very desirable in hunting and the like.` Clearly the fork 2 may be easily removed from the sleeve when not in use by simply withdrawingit.'

It will be obvious to those skilled in the art to which the invention relates that modifications rnay be made in details without departing from the spirit thereof. Hence I do not limit myself to the precise construction and arrangement of parts hereinabove set forth, and illustrated ings; but,

Having thus described the nature and objects of the invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A rowlock comprising a movable sleeve, a fixed support, ball-races connected with the sleeve and with the support, balls interposed between said races, and a fork having ashank fitted to-the sleeve so as to turn therewith, substantially as described. f

2. In a rowlock, the combination of a tapered flaring sleeve, a socket, ball-races `secured to the socket, a ball-race fittedto the flaring upper end of the sleeve, a ball-race fitted to the lower end of the sleeve,.nu'ts for in the accompanying drawsecuring the last mentioned ballrace, and balls between said races, substantially as described.

3. In a rowlock, a socket, a support for the socket, a tubular piece mounted in the socket and provided with ball-races, a tapered flaring sleeve mounted through said tubular piece, a ball-race tted to the flaring upper end of the sleeve, a ball-race fitted to the lower end of the sleeve, nuts for holding the last-mentioned ball-race, and balls interposed between said races, substantially as described.

4. A rowlock comprising a tubular ineinber adapted for attachment to a boat and provided with upper and lower ball-races, a

sleeve mounted through said tubular member -a shank fitted to said sleeve so as to turn therewith, substantially as described.

In testimony whereof I have hereunto signed my name.

THOMAS H. GARRETT, JR.

In presence of JAMES F. RICH, GEO. B. GARRETT.

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