US1626714A

US1626714A - Boat-launching device

Info

Publication number: US1626714A
Application number: US627163A
Authority: US
Inventors: Frederick A Antoncich
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-03-23
Filing date: 1923-03-23
Publication date: 1927-05-03
Anticipated expiration: 1944-05-03

Description

w 1,526,714 M y 1927- F. A. ANTONCICH BOAT LAUNCHING DEVICE Original Filed March 23, 1923 6 Sheets-Sheet 1 May 3 1927;

F. A. ANTONCICH BOAT LAUNCHING DEVICE Original Filed March '25. 1923 '6 Sheets-Sheet 2 My 3 1927. I

F. A. ANTONCICH BOAT LAUNCHING navrcu May a, 1927. I 1,626,71!

F. A. ANTONCICH BOAT- LAUNCHING DEVICE Original Filed Mz11rch 2 1923 s Sheets-Sheet 4 mt irduudm'l May 3 9 1 F. A. ANTONCICH BOAT LAUNCHING DEVICE I Orizinai Filed March 23. 1923 e Sheets-Sheet 5 Patented May '3, 1927.

"barren stares nnnnnnrcx e eivroivcicn, on BROOKLYN, NEW YORK.

BoAT-LAUNcHmG DEVICE.

Application filed March 23, 1923, Serial No. 627,163. Renewed September 25, 1926.

My invention relates to a life boat launching device for vessels, docks, life-savlng stations, etc., and is addressed to provide means for launching life boats to prevent the dan ger of the boats upsetting during the operation, to facilitate the launching, and making Fig. 2 is a detail view on an enlarged scale showing means for operating the life boat davits.

' Fig. 3 is a top diagrammatic view showing'the locationof the boats, looking down from the top of Fig. 1 in the direction of the Fig. 4 is a fragmentaryviewshowing the position of the life boats during the course of operation. 1 .i

Fig. 5 is a'detail view showing the method of releasin the life boat from the davits.

. Figs. 6, l and 8.are details of the clutch and operating parts-for connecting the davit raising means with a source ofpower.

Figs. 9 and 10 are details of the; guide beam connections with clavit posts.

Figs. 11, 12and 1 3 are details of bridge and connections. Y

Figs. '14 and 15 aredetails of davit turning mechanism. r I

In the drawings,

numerals

1,2, 3 and 4 represent life boats, life boats 1 and 2 being on lifeboats 1 and 3 beyond the rail of theboat ready tofrcceive their passengers before lowering. If desired, the loading of the life boats with passengers: could take place-either while the boat was in the cradle-or on the decln'and before it was moved-to the position shown by life boats 1 and 3.1 The davits 5 supporting the life boat are arranged in pairs, as shown in Fig. 1, so that when one lifeboat has been moved to the-position shown by life boat l, life boat2on thedeck canv be connected with the davit ready for removal to the side of the boat in position to be lowered. The davits 55 are fixedly 5 connectedto a vertical .column 6.

vertical column 6 is mounted injsuitable journals 7 and rests on ball bearings 8..v

These ball bearingsin turn rest upon screwion 11 which meshes with spiral gear 12 This fixedly mounted on shaft 13. This shaftis gear is in mesh with a beveled gear 16 loosely mounted on a stud. 17, held b 18. This beveled gear .16 is with beveled'gear 19 which is loosely mounted on shaft 20. This shaft is provided with the bracket a sleeve 22 adapted to slide on the shaft 20,

being splined thereto so as to rotate therewith. The exterior central portion of-this sleeve is circular while the end eXteriorportions are hexagonal, as shown-inFigseo and 7. Surrounding this sleeve is a shell 22 which-is attached by rivets or screws, as

old in mesh 1 shownin Fig. 6, to the-central portion-ofthe sleeve. Between the shell 22* and the'hex-j agonal portion of the sleeve there are spaces at each end of thesleeve in-which are mount-q ed springs 2'7 which press at their inner sides. against the central portion of sleeve 22 and. at their outer ends against movable claw. members 23 and 24 so as to permit motion of the claw members parallel to the shaft. The

shell 22 is turned inward atits ends, as shown, so as to retain-. the claw membersv These claw members are adaptedto mesh claws 23' with pockets in normal position.

ornotches25 on beveled gear 15 and claws 24 with pockets or notches 26 on beveled gear 19. .These claws 23 and 24 are heldin their normal position by springs 27 and are adapted, so that when the sleeve is moved toward :or away fromthebeveled gears 15;

the direction in which the sleeve 22 is moved.

, As sleeve 22 rotates with the shaft if it is moved in the direction of beveled gear 15, claws 23 engage with pockets or notches and cause beveled gear 15 torotate in the same direction as shaft 20 is rotating. This in turn causes shaft 13 to rotate in the same direction, thereby rotating spiral 12, meshing with spiral 11 and raising column 6 through. spindle 9, and ball bearings 8 to the desired position.

When itis desired to lowercolumn 9 op.- eration of the sleeve 22 is reversed, that. is, the sleeve is moved toward'beveled gear 19,

claws 24 engaging with pockets or notchesbeveled gear fixedly secured to it by suit-- able key which meshes with beveled pinion 31 pinned to a vertical shaft 32. Vertical shaft 32 is mounted in suitable bearings 33 and 34. At the lower end of vertical shaft I 32 is pinned or key'ed aworm wheel 35.

I a spiral groove 42in the sleeve 43;. which 36 is an electric motor having a shaft .37 on which is fixedly mounted a worm 38 which meshes with the worm wheel mounted on the lower end of vertical shaft- 32. Thismotor is connected with any suitable source of electric power and while I have shown an electric motor any other suitable means may be provided.

WVith the life boat 1 on the deck and the clutch thrown in so as to raise the column 6, as described above columnv 6 gradually rises. As it does so, columns 6-6 gradually "turn in opposite directions by reason of aroller 39 mounted on pin 40'secured' to a bracket 41." This roller is rotated in sleeve is loosely -mounted on column 6 and held in fixed vertical position with relation toc'olumn 6 bythe collars and 46. Column 6 haskeyed to it a notched member 44. As column 6 rises, collar 45 carries up with the column sleeve 43 and roller 39 in the groove 42 and causes the sleeve 43 to rotate. Assleeve 43 rotates spring pressed pawl 47 mounted on the sleeve 43 engages with thenotch 48 on the member 44 keyed to the column 6 and causes column 6 to rotate. As shown, columns 6-6 carrying davits for the opposite ends of the boats operate inopposite directions so that, as hereafterdescribechthe boat is lowered between them, as-s-lrown in Fig. 4, to its launching position.

Life boats are attached to the davits by The operation of this'clutch after each movement of 180 as'follows.

tackle 49 which consists, as shown in Fig.

5, of cable or rope 50 and pulleys 51, the

pulleys being attached, asshown in Fig. 5, to the outer ends of the davits 5. The lower end of the tackle 49 is attached to a guide ley 55. The yoke 53 at the rear end of the boat is likewise detachably' connected to the bottom end of the boat and is also provided with a brake drum and Windlass 56 controlled by the cam lever 57 pivoted to the yoke .53 by pivots 58. A suitable brake band is attached to the lever 57 'at opposite ends of 'a bell crank lever 59 and 601, The hand lever 57 and bell crank levers 59 and GOare integral. 1 I r The brake 6-1 consists of a suitable ban-d, belt or other flexible member which surrounds the brake-drum 56 and by operating the hand lever 57 soas to move the bell cr-anklevers more or less tension isbrought t'obear on the drum through the brake flexible member 61 to control the rotation of the drum and regulate the speed. of lowering of the boat through the tackle 49. l/Vhen the life boat has been launched in the waterand it is desired to release it from the boat the hand wheel 62 is rotated. 62 is fixedly attached to a sleeve 63 within which at one end is a right thread engaging a similar thread on one end of one of the bolts 54 and in the'other end of the sleeve is a left thread engaging a similar thread on the adjacent end of the other bolt 54 so that as sleeve 63 is rotated by wheel 62 it draws the

bolts

54, 54 toward each other'and re-' leases them from engagement with the'lower ends of the

yokes

53, 53 thereby disengaging the boat whichis now free tomove away from" the vesseh As the life. boat moves away from the vessel thefweight of the tackle, the brake drum,-,etc., will cause the tackle to runout from engagementwith the This hand wheel j pulleyon the clavits and thus released from the davits will sink or float away and not i encumber further operation of the life boat launching apparatus. Toprevent the davits from swinging with the positive means for locking them in the position'shown in Fig. 1", or, in other words,'to lock them after they have rotated a distance of 180], I have provided means for locking the column 6 A bracket 108- carries a guide rod109, as shown in Fig. 2, and slidably mounted upon said guide rod and held in position by the bracketis aspring pressed pawl 110 which engages with a'notch 111 in the collar is keyed to the column 6.

As described'above, the lifeboat is first raised from its cradle. The davits then ro- 44'which has been raised, carried out betweenthe.

tate, carrying the life boat out between them 7 until it is in a position slightly above that shown by life boatl in :Fig. 1 when the davits will be lowered by. the column 6 vuntil the life boat has reached the actual position shown in Fig. lwhen it is ready for launching. This operation of raising the life boat, passing it out-and then lowering it to the position shown by life boat 1 in Fig. 1 is as follows. I 1

A clutch hereto-fore described connecting

shafts

13 and 20 is automatically operated as follows. A collar lever 28 pivoted at 29 is provided at its lower end'with a pin 29*.

" A lever pivoted at 65? to shaft 66 is pro,

vided with a bifurcated member 80. Rod 66 is provided at its inner end with a'pin'carrying an anti-friction roller 81 which operates in a groove 68 in the side of worm'gear 69. This groove is arranged concentrically of the gear 69 having three positions as clearly shown in Fig. 2 in which the position furthest removed from the center or shaft is the is a spring pressed pawl 74 pivoted on an arm 75 which arm at one end is loosely mounted on the shaft 72 and at the other end pinned to the eccentric strap 77 by pin 76 of eccentric 78 which is mounted on shaft 20 so that as the shaft 20 operates the eccentric 78 'keyed'to and rotating.- with the eccentric 77 causes a reciprocating motion of the arm upon which is mounted pawl 74 which engages with the ratchet7 3 to cause intermittent rotation thereof, which rotation is in turn transmitted to worm wheel 69 through worm 71 mounted on shaft 72. When the life boat davits and lowered to the position of life boat 1 shown in Fig. 1, it is desirablethat the clutch be in neutral position and be held there until the life boat has been launched. To provide for this I have arranged an automatic release to releasethe pawl 74 from.

engagement with the ratchet 73.

When the life boat is being lowered into the position'shown in'Fig. 1, the guide beam 52, which in the case of the boats on the upper deck is formed in the shape shown in Fig. 3 or any desired shape so as to extend beyond the ends of the boats on the lower deck, comes in contact with the guide leaders 83 fixedly secured to the side of the a vessel. These leaders are preferablvI beams in cross section, or of similar constructionto provide suitable guide rails or leaders. These'guide beams 52 are normally in the position shown to the .right in Fig. 1 wherethey are locked. to an arm 84 of sleeve 85 This locking means consists. of a spring -.pressed pawl 85 mounted in housing 86 and provided 'Witha springi87 to keep the pawl" 8' in normal locking position. The guide beam 52 is provided with extensions-88 which extend outwardly and/around the head 89 of the arm 84 of sleeve 85. it is in this head that the pawl 87 is located. and, asshown in Figs. 9 and 10, the pawl is held in its nor:

mal position extending into an opening 90 1n the gnidebeam 52 so as to lock the guide beam 52 to the arm 84. At the end of pawl 85 opposite to the end whereit engages with f]- the opening 90 in the guide beam 52 there is provided a T head 93 which rests on op posite sidesof the bifurcated latch'91 which is provided with a cam shaped portion 92 so that as the latch is raised the Thead 93 ofthe pawl 85 is withdrawn in opposition to the spring 87 so as to disengageit from the opening, 90. and release guide beamv 52 from engagement with arm 84. The oper-' ation of this releasing latch is caused by the v I lowering of. the davit into the position shown in Fig. 1. In Fig. 101' have shown the leaders 83. just before the. davit, has been loweredto permit the guidebeam 52 to ven- Y gage with the leaders83. ,As willbeuseen,

the latch 91 has a projecting member'94 that engages with the upper end oftheleaders 83 so that as the arm 84 is lowered through the lowering. of the davit and the column 6,

themember 94. contacting with the upper end of the leader 83 leaves the cam member 92 of latch 91 and withdraws pawl 85 from engagement .with the guidebeam 52. At the same time the guide beam 52 is lowered and being in positionto act with the leader 83 engages therewithand holds thelife boat in fixed position with relation to the-side of the vessel. As the life boat is then lowered, as heretofore described, the leaders 83 main-v tain the same-relative position between the side of the vessel and the life boat irrespec-" tive of the position of the vessel while the I connections between the life boat. and the guide beam 52 and the davits permit the life boat to always maintain a horizontal or: parallel position to the surface of the water. I i

The boats on the lower deck are provided with similar leaders 83 operating in the same way. These leaders, however, are

shorter and are ona differentvertical plane from the leaders for'the life boats on the upper deck. To enable preparation to launch another boat from the same deck,the arm 84 must be rotated on the column 6 so as to bring it in position to engage with guide member 52 on thenext life boat tobe lowered. Topermiti this operation the arm- 84 is attached to. or integral with sleeve 85.

Thishsleeve85 rests upon acollar 95 fixed to the column 6. As column 6 is raised,

sleeve 85 slidably mounted oncolumnfi is.

caused to rotate with the column by means of the spring pressed dog 96- pivoted'on the sleeve 85 which engages with a spline 97 in the column 6'. In Flg. 15 this top view is.

. shown and the details of this construction.

I able side rails 101.

On the upper decks,- by reason of the fact that the boats must be carried to a position where in lowering they will clear the boats on the decks below, they have to be carried out beyond the side of the boat and in order to get intothem I have provided a bridge 98 held in fixed position to the side of the Vessel by tiev rods 99 and supports 100. Thisbridge 98 is provided with suit- In the passage of the life boat between the davits into the position shown in Fig; 1 by life boat 1, it is advisable that one of the rails 101' should be lowered means of mutilated gear 103 splined to column 6 as shown in Figsll and 12. This mutilated gear engages with a beveled pinion 104E fixed to rock shait105. This rock shaft has fixedly secured to it arms 106' which are connected with: the rail 101 by suitable links 10 7 so that column 6, rotates and the teeth of the mutilated gear engage with the teeth of pinion 104. Shaft 105 is rotated and arms 106 are moved so as to cause" the links 107 to movethe rails: 101 down from a vertical positionto a1 horizontalzpositio-n, as shown in Fig. 3, in opposition to torsional spring 102. When the last tooth of the mutilated gear has passed from engagement with the pinion 104 the torsional spring 102 again raises the rail 101 to its normal. position.

While I have described the operation of my invention by reference to the launching'of the boats on the upper deck, I would have it understood that the same means are used for operating the boats on other decks and the d'avits and guide beams being merely of different sizes depending upon the numberof decks from which boats are to be launched. I Having described my invention, what I claim. as new and desire to secure by Letters Patent is 1. In a boat launching device, a d avit,

a support for said davit, means for rais= ing and lowering said. davit, and means for moving said davit, means. for guiding the boat to control its position while being lowered with relation to'the side of a vessel.

fromwhich it is being loweredand means within the boat being. lowered for detaching said guiding means.

2. In a boat launching device, a davit, a

a boat inlen'gagement withsaid davit, and

means for moving said davit, means for guid ing the boat to control'its position while being lowered with relation to the side of a vessel from which it is'being lowered and means withinthe boat being lowered for de taching said guiding means.

3. Ina boat launching device, a davit, a support for said d'avit, means for raising and lowering said davit, andmeans for rotating said daVi-t, means for guiding the boat to I control its position while being lowered with relation to the side of a vessel from which it is being lowered and means within the boat beinglowered tor detaching said guidin-g means.

45.111 a boat launching device, a davit, a

support for said davit,means for raising and.

7.0 support for. said davit,'1'neans for raising and lowering sald davit, mealns for carrying lowering said davit,.means for carrying a boat in engagement with said davit, and-v m'e'ans for rotating said davitfmeans for guiding the boat to control lts posltlon while being lowered'with relation to the side of a vessel from which it is being lowered and means within the boat being lowered for detaching said guiding means. 1

' In aboat launching device, a davit, a support for said davit, means for raising-and said davit 180 degrees, means for guiding the boat to control its position whilerbeinglowmo lowering said darvit, and means for rotating ere-d with relation to the side of a vessel from -which it isbeing lowered and means within lowering saidv davit, means for carrying boat in engagement with said darvit, and means tor'rotating said davit 180 degrees, means forguiding the boat-to control its position while being lowered with relation to the side of a vessel from which it is being lowered and means within the boat being lowered for detaching said guiding means. 7. In a boat launching device, a pair of davits, means for raising and rotating-said davits in opposite directions and lowering said clavits, and means for sup'porting aboat attached to saiddavits, means for guiding the boat to control its position while b'eing lowered with relation to the side of a' Vessel from which it is being lowered and means within the boat being lo-wered for detaching said guiding means. i r I 8. In a'boat launching device, a'pair of davits, means tor'rotating said davits inopposite directions, means for.supporting a is being launched "from "said 'davits" and" means detachably connected to a boat'and to said'guideways for' guiding'a boat as it means located within said boat ing said guiding m'eans. I

'.9. In a boat launching device, a pair of davits, means for rotating said davits in opposite directions, means for supporting a boat attached to said davits, guideways and means detachably connected to a boat and to said guideways for guiding a boat as 1t is being launched from said davits so arranged as to control its position with relation to the side of the body from which it is being launched and means located within said boat for detaching said guiding means.

10. In a boat launching device, a pair of davits, means for rotating said davits in opposite directions, means for supporting a boat attached to said davits, and guideways fixed to the body from which the boat is to be launched, means independent of said supporting means detachably connected with for detacha boat and with saidguideways for controlling the position of the boat while being launched and means located within said boat for detaching said guiding means.

11. In a boat launching device, a pair of davits, meansfor rotating said davits in opposite directions, means for supporting a boat attached to said davits, guideways fixed boat'attached to said ing to a boat attached to said davits, and.

to the body from which the boat is to be launched, and means independent of said supporting means detachably connected with the boat and engaging with said guideways for controlling the position of the boat while being launched, and means located within said boat for detaching said guiding means.

12. In a boat launching device, a pair of davits, means for rotating said davits in o-pposite directions, means for supporting a boat attached to said davits, guideways fixed to the body. from which the boat is to be launched, and means independent of said supporting means connected with the'boat and engaging with said guideways for con-- trolling the position of the boat while being launched, and means located within said boat for detaching said guiding means.

18. In a boat launching device, a pair of davits, means for rotating said davits in 'opposite' directions, means for supporting a davits, a bridge leada folding side rail for said bridge normally held 1n operative position, said side rail being operated by. rotation of the davit.

14. In a boat launching device, a pair of davits, means for'rotating said davits in opposite directions, means for supporting a,

boat attached to said davits, a bridge lead ing to a boat attached to said davits. a folding side rail for said bridge normally held in operative position, and means, operated arm detachably connected by the means' for rotating the davts,j-for operating said-folding rail.

' '15. In a boat launching device, .a davit, a

support ltor said davit, an arm detachably connectedto said'support and with ab'oat to belaunched, guiding means'fixedto the body from which a boat'is -to belaunched, and means for disengaging'said arm from the support when said arm is brought into register with said guiding means.

16. In a boat launching device, a davit, a

rotating support for said davit, an arm detachably connected to said support and with a boat to be launched, guiding means fixed to the body from which a boat is to be launched, .and means for disengaging said arm from the support'when registering with said guiding means. i

17. Inaboat launching device, a davit, a vertically moving support for said davit, an to said support and with a boat to be launched, guiding means fixed to the body from which .a boat is to, be launched, and means for disengag mg sald arm from the support whenreglstering with said gulding means.

18. In a boat launching device, a davit, a

rotating support for said davit, means for rotating said support, an arm detachably connected to said support and with a boat to be launched,-guiding .means'fixed to the body from which a boat is to be launched, and means for disengaging said arm from the support when registering with said guidmg means.

19. In a boat launchingdevice, a davit, a'

vertically moving support for said davit,

means for vertically moving said support,

aboat to be launched, guiding means fixed to the body from which a boat is to be launched, and means for arm from the support when registering with said guiding means.

21. In a boat launching device, a davit, a rotating support for said davit, means for locking said support against rotation after it has rotated 180 degrees, an arm detachably connected to said support and with a boat to be launched, guiding means fixed to the body from which a boat is to be launched, and means for disengaging said arm from the support when registering with said guiding means. i

22. In a boat launching device, a davit, a

disengaging said I i i We rotating and vertically movin-g support to movement, an arm detaeh-ably connected to said. support and with a boat to be launched, guiding means fixed. t0 the body from which a boat is to be launched, and means for disengaging saiderm from the support when registering with said guiding means.

In Witness whereof, I' have signed my name to this specification.

FREDERICK ALANTONCIGH.