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Publication numberUS891598 A
Publication typeGrant
Publication dateJun 23, 1908
Filing dateAug 5, 1907
Priority dateAug 5, 1907
Publication numberUS 891598 A, US 891598A, US-A-891598, US891598 A, US891598A
InventorsKieran John Daly
Original AssigneeKieran John Daly
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Boat-releasing device.
US 891598 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

No. 891,598. PATENTBD JUNE 23, 1908 K. J. DALY.



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To all whom it may concern:

Be it known that I; KIERAN JOHN DALY, a citizen of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Boat-Releasing Devices; and I do 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 appertains to make and use the same.

This invention has relation to new and useful improvements in boat releasing devices, and has for its object the production of simple and economical means of this character, through the use of which a boat is automatically released upon reaching or entering the water.

WVith the foregoing and other objects in view, the invention consists of certain new and useful combinations of parts illustrated in the drawings, and particularly pointed out in the appended claims.

In the accompanying drawings: Figure 1 is a side elevation of a section of a boat with the invention attached thereto. Fig. 2 is an enlarged detailed view of the releasing means detached from position; andFig. 3, is also an enlarged detailed view of the releasing means turned at right angles to the position assumed in Fig. 2.

In the embodiment illustrated, a section of a boat 1 is shown.

In carrying out the invention, two corresponding clutch members 2, bent to form hooks 3 at their lower ends and provided with or terminating in suitable enlargements or heads 4 to cause said ends to be considerably heavier than the opposite or hook ends, are employed. In practice said clutches are pivoted at suitable points intermediately of their ends to a pin or axle 5, so as to swing in opposite directions relative to each other.

A handle 6, preferably in the form of a split ring having its ends bent outwardly to form straight portions 7, aperturedto receive the ends of the pin or axle 5 is. employed as a part of a suspension for the hooks. The ends of the pin or axle are preferably apertured to recelve cotter pins 8 or other equivalent means for removablysecuring the handle in position. Said handle serves two distinct functions, viz: that of holding the Specification of Letters Patent.

Application filed August 5, 1907.

Patented Tune 23, 1908.

Serial No. 387,170.

clutch members in operative position on the pin or axle and as an engaging means for a block or tackle, or other equivalent means employed to move the boat to the water.

In practice, a block and tackle, or other equivalent means to move the boat to the water is connected to the handle 6. By

swing laterally in opposite directions and re lease the hooked ends thereof from engagement with the means attached to the boat, with which they were engaged.

From the foregoing description taken in connection with the drawings, it is thought, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

I claim 7 A boat releasing device of the character specified, embracing a pivot member, two clutch members formed at their inner ends with inwardly curved portions, constituting hooks, and at their outer or opposite ends with outwardly curved enlargements, constituting weights, pivoted to the pivot member in relative sidewiserelation to swing in relatively op osite directions when a ull is exerted on t e pivot member, and a andle in the form of a s lit ring having its ends bent to form latera ly spaced straight apertured portions to receive the endsof the pivot member, the body of the handle extending above the weighted ends of the clutch members.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4678220 *Feb 14, 1986Jul 7, 1987Gabriel Edwin ZShovel-like coupling devices with automatic material handling features
US4763943 *Nov 14, 1986Aug 16, 1988Mm & M Consultants LimitedCrane hook
EP0223231A2 *Nov 19, 1986May 27, 1987MM & M Consultants LimitedA boat or the like raising and lowering system
Cooperative ClassificationB63B23/58