US49395A - Improved rowlock - Google Patents

Description

UNITED STATES PATENT.r OFFICE.J

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IRA O. FLAGG AND F. W. FLAGG, OF MIDDLETOVVN, CONNECTICUT.

IMPROVED ROWLOCK.

Specication forming part of Letters Patent No. 42,395, dated August 15, 1865.

To all whom it 'may concern:

Be it known that we, IRA C. FLAGG and F. W. FLAGG, of Middletown, in the county of Middlesex and State of Connecticut, have invented a new and Improved Rowlock; and we do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the artto make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l represents a sectional fronteleva tion of this invention. Fig. 2 is a horizontal section of the same, the line a: .1', Fig. l, indi. eating the plane of section. Fig. 3 is a transverse'vertical section of the same, the plane of section being indicated by the line y y, Fig. 1.

Similar letters of reference indicate like parts.

Thisinvention relates to a rowloek which will work without noise and without perceptible wear on the ear, which accommodates itself to the different positions of the oar, and which can be readily taken oil from the boat and earried home to preventitt'roin being stolen. In order to effect these purposes the horns are cast or otherwise made with a dovetuiled ravity, wh ich is intended to receive a mat ofleather, or other suit-able material, in such a manner that by the pressure ot' the oar on the mat the latter is forced into the dovetailed cavity and prevented from working loose, and a durable rowlock is obtained, which works without noise and without perceptible wear on theoar. The horns are provided with a stem which lits into a socket in a plate that is secured to the gunwale of the boat. Said stein is provided with a circular groove, from which extends a slot clear to the end ot' the stein, and a pin projects from the inner surface ot the socket. When this pin is made to enter the circular groove through the slot the horns aresecurcly retained Yin the socket, and they acrommodate themselves readily to the various positions oi' the oar, allowing the same to trail,77 and, if desired, said horns can be removed` at any moment.

A Arepresent the horns otourrowlock, which are cast or otherwise made with a dovetailed groove, a, to receive the mat b, of leather or other suitable soft material. This mat is forced into the dovetailed groove, and the pressure of the oar itself holds the saine down and causes it to till the groove, so that it cannot come out spontaneously. Withoutthedovetailedgroove the mat cannot be secured so that it will stay for any length of time.

The horns are provided with a cylindrical stern, B, which tits into a socket, C, that rises from a plate or bracket, D, as clearly shown in thedrawings. This plate is firmly screwed down to the edge ofthe gunwale, and the gunwale is not weakened. From the inner surlace ofthe sorket projects a pin, c, and the stem B is provided with a circular groove, d, and with a slot, e, which extends from said groove to the end ot" the stein, as shown in Fig. 3. Through this slot the pin c can be madeto enter the groove d, and by tnrniiig the horns parallel with the keel of the boat theyare securely held and prevented from coming oi' spontaneously. The horns can thus be turned freely in either direction without danger that they come out until the pin ccomes opposite the slnt e. They can he easily turned far enough to allow the oar to trail or to come parallel, or nearly so, with the keel ot` the boat, and wheneverit may be desirable the horns can be readily removed.

We do not claim the application of a leather mat to the horns ot'arowlork, such having Vbeen previously used 5 but We claim as new and desire to secure by Letters Patent- The circular groove d and slot e in the. stein

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