US1071765A - Device for securing and releasing life-boats. - Google Patents

Description

A. P. LUNDIN.

DEVICE FOR SECURING AND RELEASING LIFE BOATS.

APPLICATION FILED NOV. 9, 1908.

1,071,765, Patented Sept. 2, 1913.

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m k I WITINESQSES 1 INVENTZR ATTORNEY COLUMLHA PLANQGRAPM co., WASHINGTON, IL \.4

A. P. LUNDIN.

DEVIGE FOR SECURING AND RELEASING LIFE BOATS. APPLIOATION FILED NOV. 9, 1908,

1,071,765, Patented Sept. 2, 1913.

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ANDREAS P. LUNDIN, OF NEW YORK, N. Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TO ASTOR TRUST COMPANY, TRUSTEE, A CORPORATION OF NEYV YORK.

DEVICE FOR SECURING AND RELEASING LIFE-BOATS.

Specification of Letters Patent.

flatented Sept. 2, 15913,

Application filed November 9, 1908. Serial No. 461,631.

I '0 all whom may concern to it known that l, Annnnas P. LuNmN, a citizen of the United States, and a resident of the borough of l /ianhattan, city, county, and State of New York, have invented certain new and useful Improvements in Devices for Securing and Releasing Life- Boats, of which the following is a specifica- 'tion.

My invention relates to devices for securing and releasing life boats.

The importance of rapidly and positively clearing a life boat of its grips and from its supporting cradle and chocks preparatory to launchin is well recognized.

ly the use of my invention, I produce a simple and inexpensive device, by which, first, a life boat in case of an emergency may be instantaneously and by the same operation released of its grips or lashings and cl ared of its checks, second, such life boat may be choeked well outboard, thus economizing deck space, and third, when the lift boat is in position on its supporting cradle and chocks the operating mechanism for both the checking block and the grips will be secured in proper position without the use of pins or the like.

in the accompanying drawings, which illustrate a preferred embodiment of my invention; Figure 1 is a section of a life boat with my invention applied thereto, the plane of the section being taken just fm'ward of the forward cradle or support therefor; Fig. 2 is a fragmentary side view of the same as seen from outboard; Fig. 3 is a similar view as seen from inboard; Fig. 4f is a detail end view of the mechanism employed at the outboard side, showing the operating mechanism in locked position; Fig. 5 is an enlarged detail of the outboard end of the rocking shaft and accompanying mechanism shown in Fig. 1; Fig. (3 is a detail side view of the operating lever and grip releasing mechanism for the inboard side; and Fig. 7 is a front view of the same.

Similar reference characters designate corresponding parts throughout the several views.

Referring now to these drawings, A indicates a life boat which may be suspended from davits (not shown) in the usual manner and supported on a cradle l secured to the deck in any suitable manner, such as by the clamping bracket and screws Z), 6.

C indicates a rock shaft which, as shown,

extends transversely under the boat, is journaled in suitable bearings such as c, 0, on the cradle 13, runs in a parallel direction thereto for a part of its length, and is separated therefrom by a small space. The said shaft (l is bent near its outboard end as shown at c and the free end thereof beyoiul the bend runs parallel to the journaled portion of such shaft and projects beyond the outer edge of the cradle ll. The free end of the shaft C will, of course, be eccentric. of the rocking}; shaft proper, and when the rocking shaft is rotated so that the bent portion abuts against: the cradle ll, said shaft will be secured in position as will be more clearly seen in Fig. i. Such free end of the shaft (2 is provided with a chocking block l) fixed thereto in any suitable manner, leaving a channel it between it and the cradle ll for the reception of the keel of the boat A. This chocki block is n'eferably so fixed axially on said free end of the rocking shaft, that when the bent portion abuts against the cradle as aforesaid, it will assun 5 a vertical position. An anti li'riclion roller l is 'jour naled on said rocking shaft intermediate the ehocking block 1) and the cradle 13 to permit the shaft to be readily moved to its secured and unsecured positions. This roller serves as a support or rest for the keel of the boat and by its engagement therewith more securely retains the said shaft in position. The outer face of the checking block l) is provided with a projection (Z having a laierally projecting hood 1! adapted to engage a link or ring J on the outboard end of the grip chain la, which oxtciuls from said point upwardly and transversely over the boat to the inboard end thereof, where it is pro vided with another link or ring d" for attachment to the hooked pawl or dog ii operating between knuckles 1, formed on the rocking lever M which is fixed to the shaft C and adapted to rock the same. latching rod ll slidingly secured to the rocking lever M adapted to keep tl e pawl or dog ll in its outvard position to permit the grip chain to be secured thereto. The latching rod N is provided with a hand lover a, adapted upon manipulation to lift the latching rod upwardly and out of engagement with the inner end of the pawl or dog ll, whereupon said pawl or dog will turn on its axis and release the inboard end of the grip chain. The manipulation of this latching rod to let go the inboard grip chain and the rocking of the shaft C by means of the rocking lever M may of course be accomplished substantially simultaneously and by the same manual act of pulling or pushing, according to the position of the operator.

The outboard end portion of the grip chain abuts against and forms a support for the outboard. side of the life boat, and that portion which so abuts is preferably canvascovered as at 76 to prevent injury to the life boat. Channel plates 76 76 are also secured to the gunwales of the life boat at the points where such grip chain comes into con tact therewith, thereby preventing lateral movement of said grip chain relatively to the life boat. Said grip chain is also provided intermediate its ends with a turn buckle 76 of the usual pattern to permit adjustment of its length and to tighten the same if necessary when secured in position.

Two devices of the kind described are preferably provided, one at the forward and the other at the aft end of the life boat.

The operation of the device is as follows: Assuming the devices to be in their normal positions as indicated in full lines in the drawings, by simply pushing or pulling the rocking and hand levers M and a, they will, by the same manual act, as aforesaid, release the inboard grip chain and rock the shaft 0, thereby turning down the checking block D and releasing the outboard end of the grip chain from the hook d. The lifeboat will thus be instantaneously and simultaneously released from its grip chains and cleared of the chocking block, whereupon it may be swung over the side of the boat and lowered away into the water by suitable davits.

To return the boat to its posit-ion on the checks, it is only necessary to swing the same back in position over the cradle. The grip chain is lengthened by turning the turn-buckle if, and is then secured at its outboard end to the hook (Z and at its inboard end to the hooked pawl or dog L and the lever brought to its vertical posit-ion. By bringing this lever to its vertical posi tion the roller F will come into frictional contact with the keel of the boat, and the free end of the shaft beyond the bent portion will be turned past center, the bent portion of said shaft C abutting against the lower part of the cradle B and securingthe mechanism in position.

I claim:

1. A device for securing and releasing life boats, comprising a cradle at the inboard side of the life boat, a checking block at its outward side movable laterally relatively to said cradle, a rocking shaft adapted to be operated from the inboard side of the life boat for niovingsaid checking block to its securing and releasing positions respectively, a roller carried by said shaft inter mediate the chocking block and the cradle, and means for rocking said shaft to move the roller into engagement with the keel of the life boat.

2. In devices for securing and releasing life boats, the combination with a cradle for the inboard side of such boat, a checking block for the outboard side movable relatively to said cradle, a grip chain secured to said checking block and adapted to be released by the movement thereof, and means for moving said chocking block.

3. In a device for securing and releasing life-boats, the combination'with a stationary cradle for the inboard side of a lifeboat, of a rocking shaft mounted contiguous thereto, carrying a checking block at its outer end and having a portion intermediate its ends bent eccentrically to its axis and adapted to abut against. the cradle to pre vent furthe movement of the shaft when the chocking block assumes a vertical position.

In a device for securing and releasing lifeboats, the combination with a stationary cradle for the inboard side of a lifeboat, of a rocking shaft mounted contiguous thereto, carrying a checking block at its outer end and having a portion intermediate its ends bent eccentrically to its axis and adapted to abut against the cradle to prevent-further movement of the shaft when the checking block assumes a vertical position, a hook carried by said checking block, another hook associated with the inboard side of said rocking shaft, a roller mountedron the eccentric portion of said rocking shaft adapted to frictionally engage the keel of the boat and means for rocking said rocking shaft.

In Witness whereof, I, have hereunto signed my name to the foregoing specification in the presence of two subscribing Witnesses.

ANDREAS? LUNDIN. Witnesses Jos. F. OBRIEN, ANNA S. BROMBERG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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