US590555A - Oar-lock - Google Patents

Description

(No Model.)

' A. SMITH.

OAR LOCK.

No. 590,555. Patented Sept. 21, 1897;

UNITED STATES v PATENT OFFICE.

ANDREIV SMITH, OF TRAVERSE CITY, MICHIGAN, ASSIGNOR OF ONE-HALF TO JOHN F. DONOHUE, OF CHICAGO, ILLINOIS.

'OVAR-LOCK.

SPECIFICATION forming part of Letters Patent No. 590,555, dated September 21, 1897. Application filed January 12, 1897. Serial No. 619,013. (No model.)

To all whom it may concern.-

Be itknown that 1, ANDREW SMITH,of T ra verse City, in the county of Grand Traverse and State of Michigan, have in vented 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 skilled in the art to which it pertains to make and use it, referro ence beinghad to the accompanying drawings,

which form part of this specification.

This invention relates to improvements in oar-locks; and the object of the same is to provide a device of simple and improved form 1 5 a for holding the oar permanently in operative position in the lock and at the same time afford the oar every possible movement for its proper feathering and for the proper manipulation of the boat;

The invention resides in the novel features of construction fully described and claimed hereinafter and referred to in the accompanying drawings, in which- Figure 1 is a perspective view of the lock in position upon an oar, only a portion of the latterbeing shown. Fig. 2 is across-sectional view of the car and sleeve attached thereto in position within the lock. Fig. 3 is a side elevation with the lock shown in sect-ion. Fig. 4 is a detail view of the oar-lock and oarsleeve, showing the manner of positioning the sleeve in the look before inserting the oar and securing the sleeve thereto. Fig. 5 is an elevation of one side of the interior of the lock.

A designates the ring-shaped oar-lock, having the usual pintle B. Upon the opposite inner faces of the ring-lock and beneath its transverse center are the inwardly-projecting lugs O, the lugs being preferably in the form of a parallelogram in cross-sectional extent for the purpose presently to be stated.

D is the oar, and E a longitudinally-divided sleeve which when in'position upon the oar completely encircles the same, as shown. The

5 body of the sleeve is rounded outward or bulged and curved inward or tapered toward the sleeve ends. A continuous groove F is formed in the center of the sleeve, and lugs 0 project thereinto, and thus constitute pintles or turning-points upon which the car may be adjusted in the lock to any position desired for. properly feathering the same or for otherwise handling the oar in the management of the boat. The bulged or rounded sleeve fits quite snugly Within the ring A, but at the same time affords the oar ample vertical play or swing, as clearly shown in Fig. 3.

I prefer to use vertically-elongated lugs, as

O, as they are less liable to break than mere circular pintles. They are arranged beneath 6a the transverse center line of the ring with special reference to their form, so that the vertical swinging of the oar will in no manner be interrupted thereby. The parallel sides of the quadrilateral lugs conform to the inclinations necessary for the oar and at the same time do not bind in the sleeve, so that. the oar, whether in a raised or lowered inclined position,1nay be turned or rotated within the lock with as much ease as though the oar were in horizontal position.

With the sleeve secured to the oar and within the oar-lock, as shown in Figs. 1, 2, and 3, the car cannot be removed from the lock, and hence it is necessary to first place the sectional sleeve within the ring of the lock and then insert the oar and secure the sleevesections thereto. As the upper ends of lugs G are beneath the transverse center line of the lock-ring one section of the sleeve may be readily inserted with both lugs extending into its grooved exterior, and then the other section of the sleeve may be moved longitudinally over the first section to proper place within the ring, as clearly illustrated in full 8 5 and dotted lines in Fig. at. When thus positioned, the oar is vextended through the sleeve the proper distance and screws or other devices applied for holding the sleeve-sections thereto. 7

With an oar-lock constructed as herein shown and described the lock remains permanently in position upon the oar so long as the sectional sleeve is secured thereto, so that none of the parts areliable to become lost or 5 misplaced.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is

1. The combination of the oar-lock having I00 inwardly-projecting lugs on its opposite sides and beneath the transverse center thereof,

the circumferentially-grooved sleeve adapted to rotate within the lock and to oscillate upon the lugs but held by the lugs from longitudinal movement, the sleeve being adapted to embrace the oar to which it is secured, substantially as shown and described.

2. The combination of the oar-lock, the vertically-elongated lugs projected inward from opposite sides of the same, and beneath the transverse center of the lock, the sleeve adapted to rotate within the lock and to oscillate upon said lugs, but held from longitudinal displacement by the lugs, the sleeve being adapted to embrace theoar to which it is secured, substantially as shown and described.

. 3. The combination of the closed oar-lock,-

the pintle-lugs upon its opposite inner sides beneath the transverse center of the lock, the sleeve adapted to fit snugly within the closed lock and grooved circumferentially to turn upon said lugs and also divided longitudinally, whereby with one section of the sleeve within the lock and embracing bot-l1 pintlelugs, the other sleeve-section may be adjusted to position, the sleeve when thus positioned being adapted to be secured around the oar, substantially as shown and described.

4. The combination of the lock, the quadrilateral lugs on opposite sides thereof, the circumferentially-grooved sleeve embracing the oar and adapted to turn within the look upon said lugs, substantially as shown and described.

In testimony whereof I afiix my signature in presence of two witnesses.

ANDREW SMITH.

Vitnesses:

D. A. WoonwoRTH, JAMES C. WoonwoRTH.

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