US1900227A - Lifeboat hook - Google Patents

Description

March 7, 1933. cRAlG 1,900,227

LIFEBOAT HOOK Filed Feb. 29 1932 Patented Mar. 7; 1933 nun-1:11 TAT S LovELnpr ns'ron'm, onneon V Application filed"Feb ruaryf.29;'1932'. {s rial No. 595,893, T" l The inventiontirelate's primarily-to are-V leasable hook for connecting either endo'f a lifieboat with a block. and a tackle suspended from a conventional davit. Such hooks are 5 subjected to extremely rough usage whether used in launching lifeboats, or for launching othersmall boats carried by larger crafts, f. particularly during rough weather, and

I [quite serious accidents havev occurred. from "iflfailure of the conventional hooks at Crucial moments, one of the most serious hazards" 1 being the fact that the pivot of .the releasable hook, may become lost or broken, premature I 1y releasing oneendof the boat with dis-,

15 astro'us results. I

It is the object of my invention to provide a new and improved hook of the typeset forth, which will readily withstand all rough. usage to which subjected, and provided with safety means for preventing pulling of the pivoted hook .from'the' casing and for carryingthe'hook-supported load if the hook pivot should become brokenor lost. f c Withthe foregoing in View, theinventio'n ing accomplished by referenceto'the accompanying drawing. a a f Fig. 1 is a perspective view of a hook con-. structed in accordance with the invention.

the pivoted hook heldin operative position.

ing the manner in which the safety means is removed.

A preferredconstruction has been shown and will be specifically described, with 'theunderstanding however that variations may .intent of the invention is for useasa life boat hook, it may obviously be employed for other purposes also, wherever apos'itiveholdin nick-releasin hook, is advanta- 21 p a h I geous. a

l The numeral 5 511 the drawing denotes a I cast-metal casing whose upper end is provid- .po'site side walls. ofthe: casin resides inthe novel subject matter herein; after described and claimed, description be- Fig. 2 is a vvertical sectional View showing Fig. 3 is a View similar to Fig; 2 butshow-j holds the 'pi vot'edihookl even when its i'pivot fqafety m be made within thescope of theinventionload, in v case the pivot '15' of the hook 1 3 as claimed. Furthermore, while the primary is-lfformed-with throat 7 to receive a load supporting-eye orring, such1as a ringebolt of j alifeboat. Along itsrloWerlYendS and one vertical edge ,9, the casing 5,-is open, but along V the lower portion of its otheryertical edge,

it is closed by a nintegralgweblO-L .Nearthe'f y 7 open 'ed'ge-8,.upper andflower-lugsll and12 I 1 areprovided integrally connectedfto the ophaving a bill 14- *which normally j extends.

'acrossthe throat 9 to engage the eye, ring boltzor the like-j The pivot 15 of this'hook 13 isfbetween the throat '7 and the lower end of theweb 10, andsaid hookis providedwith $3 an upstanding shank 16'which' projects upzwardly beyond the pivot 15 and is spaced i'n- 'ward'ly' to a slight extent from said web 10.

A lo el'zing lever '17 is fulcrumed at 18- in the'ctsing 3n at :oneend'normally abuts 75" theinnerjedgeof 'theshank, 16 tohold the "1 hook;l311in operative positiom; said locking {lever "being ..-;quickly moved to this position I b -a" coiled spring f19 when the hook 113 is closed.*Preferablyythe npperextrem-ity of the sh'ank l6iis obliquely out asi'shown, and

"the-lever; l-7iis provided with a v-shapedz notch-20 receiving said, extremity of said shank. .Eitlier fcontact.ofthe upper wall of. the notch 20 withthe shank 16, or contact of lcver17 with lug; 151, orboth, mayberelied 7 upon to Ilimit the? movement of saidglever' unfder theinfluenc'e of the spring-19, and -for releasing said flleve'r when it is desiredto re-.-

lease the load, 'a pull chain or the like/ 21 is p i U v 7 7 cans are employed to prevent pull ing of the hook-13 from the casing Y5, and; to carry the weight of the ho'ok s upported sh ould become broken or lost. This safety vmeans preferably comprises an abutment 22 "carried by the casingi5andasocket 28in the hook shank .16, said abutment and socket :being loosely interfitte'd when 'hook lg isfin op;

' erative position,- as shown in Fig. 2. In-case the pivot :15 should become lost' or broken however, the, hook 13*will descend slightly until the-Supper edge of thesocket23'contacts Alpivloted hool '13 BL Provided; saidv hook l downward movement of the hook will be prevented, so that the hook 13 and the abutment 22 will then carry the entire load suspended new and'advantageous construction has been be made. For instance, the pivot 15, fulcrum from said hook, overcoming dangers which now exist in connection with conventional lifeboat hooks. W hen the hook 1s bemg supported by the pin 22 as seen in Fig. 3, the ing 12 prevents insufficient swinging of said hook to allow disen agement of the safety means 22-23, until the latch 17 is released.

When the hook shank is properly held by the lever 17, it is impossible for the hook 13 to become released even with severely 'rough usage, and while said hook is under load, it cannot be released by pulling upon.

the chain 21. As soon as the load is taken from the hooloh'owever, for instance, when th life-boat comes to. rest upon the water,

pulling of chain 21 will release thehook and free the bo-ator other load. a It will be seen from the foregoing that 3. A lifeboat hook comprising a casing having a throat in its lower end, a load-supporting hook pivotedin said casing, said hook having a bill extending across said throat and being provided with an upwardly projecting shank at one side of said throat, latch means in the casing normally abutting said shank to prevent swinging of the hook to released position until said means is released, an interfitting abutment and socket,one carried by the casing andthe other by the hook shank for preventing pulling of the hook from the casing and for carrying the hook-supported load if the hook pivotshould become broken or lost, and a'stop fixedly carried by thecasing in position to abutthe hook bill toQprevent suchswlngingofthehook as to disengage said abutment and socket until said latch means is released.

In testimony whereof I affix my signature.

FR NK n. one-re.

provided, andwhile the details disclosed have proven of great advantage, attention is againinvited to the fact that variations may 18 and abutment 22 are each preferably formed from a heavy screw held against ac- I so of the hook from the casing and for carrying the hook-supported load if the hook pivot shouldbecome'broken or lost, and means fixedly carried by said casing toabut the hook and prevent swinging thereof to free said safety ,meansiuntilsald latch means is released.

2. A lifeboat hook comprising" a casing i 1 having a throat in its lower end, a load-supportinghook pivoted in said casing, said hook having abill extending across said throat and bein iprovidedwith an upward ly projecting shank at one side of said throat,

latch.,means in the casing normally abutting said shank to prevent swinging of the hook to released position until said means is released,interfitting means carried by said casand' said hook for preventing pulling of the hook from the casing and for carrying the hook supported load if the hook pivot should become broken or lost, and means fixedly carried by said-casing to abut the hook and pre vent such "swinging thereof as to disengage said interfitting means until said latch means 1s released. I

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