US1897307A - Boat davit support - Google Patents

Description

Feb. 14, 1933. 5-; s. GREEAR BOAT DAVIT SUPPORT Filed Jan. 14, 1932 Patented Feb. 14, 1933 EVERETT B. GREEAR, OF SHARONDALE, KENTUC CALVIN B. STALLARD, OF SHARONDALE,

BOAT DAVIT SUPPORT KENTUCKY Application filed January 14, 1932. Serial No. 586,670.

This invention relates to improvements in boat davit supports and pertains particularly to a support designed for oscillating the outward swinging or inclining of the davit.

Boat davits are normally mounted in sockets in the deck of a ship so that they may be oscillated about their longitudinal axes to swing the boat outwardly beyond the side of the ship, but such mounting does not ordinarily permit of the tilting or listing outwardly of the davits so as to swing the boat supported thereby a sufiicient distance outwardly to prevent it striking the side of the ship in the event that the ship has listed in the direction 1 away from the side where the boats are being lowered.

The primary object of the present invention is to provide a movable davit supporting socket which may be swung outwardly from a vertical to an outwardly inclined position so that the outer ends of the davits mounted in the sockets will be removed such a distance from the side of the ship that the boat supported thereby may be lowered directly into the water without touching the side of the ship even though the ship be badly listed to the side opposite that from which the life boats are being lowered.

Another object of the invention is to provide a boat davit and support therefor which is of relatively simple but strong and durable construction and which may be easily and quickly operated for the outward swinging of the davits.

The invention will be best understood from a consideration of the following detailed description taken in connection with the accompanying drawing forming part of this specification, with the understanding, however, that the invention is not confined to any strict conformity with the showing of the drawing but may be changed or modified so long as such changes or modifications mark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawing Figure 1 is a view partly in section and partly in side elevation of the davit support embodying the present invention;

Figure 2 is a sectional view. taken substantially upon the line 22 of Figure 1 and showing the parts on an enlarged scale;

Figure 3 is a horizontal sectional view taken substantial ure 1.

ly upon the line 3-3 of Fig- Referring now more particularly to the drawing wherein like numerals of reference indicate corresponding parts throughout the several views,

the numeral 1 indicates a portion of a ships deck, while-the numeral 2 indicates an adjacent portion of the side wall of the ship, the deck'and wall portions being in section and co nventionally illustrated.

The davit support and shifting mechanism embodying the present invention is indicated as a whole by the numeral 3 and as shown, this comprises a casing or housing 4 which is relatively narrow and has a extending por downwardly tion ,5 which forms an integral continuation of the walls thereof at one edge, this edge being open from the top of the housing to the lower end of the portion 5.

The housing 4: is mounted in upright position as shown upon the deck tended port-i 1 with the exon 5 directed downwardl against the outer face of the wall 2 of the ship and any suitable means may be employed for securing the casing firmly in position, as for example, the bottom edges of the sidewalls thereof may have the angle bars 6 secured thereto and fastened by bolts or in any other suitable manner to the deck and side of a ship.

At the lower endof the hollow extension portion 5 of the housing there is formed a bearing 7 1n whlch is mounted one end of an arm 8.

This arm normally extends upwardly and is partly enclosed in the portion 5 of the housing and at its-upper end it is enlarged to form the socket 9 which projects above the housing 4, and the integral gear segment 10 which projects inwardly into the housing 4.

The for-war has a short do d open edge of the housing l wnwardly extending wall portion 11 upon the inner face of which is formed a bearing 12 a tions one end through the u the rear edge nd into this bearing there posiof the shaft 13 which extends pper part of the housing from thereof. -At the rear edge of KY, ASSIG'NOR or ONE-HALF 1'0 7 i no description.

the housing this shaft 13 extends outwardly and carries a crank 14 by means of which 1t is rotated when the mechanism is in operation. Within the housing a second bearing which is indicated by the numeral 15, is carried by and between the side walls thereof through which the shaft 13 positions.

The shaft 13 carries a worm 16 which is in threaded connection with the teeth of thegear segment 10' and from this it will be readily apparent that by rotating thesh'aft '13 in the proper direction the gear segment .10 maybe caused to swing outwardly, moving about the pivot or bearing 7 as an .axis. 7

The socket 9 receives the davit- 17, the construction OIE'WhiCh is well known and needs At 18 there is indicated an opening through the deck of the ship through 'which may be drained of? water which gets into the casing 3 and the bottom of the casing is provided with :a suitablecorresponding opening in the man- 'ner-shown.-

I From the toregoing it will be readily apparent that when the davits off a .ship are mounted in supports of the character'herein described and the ship is l'istingbadly, it will be possible'to tower lifeboats safely from the high side o'ffthe ship as well asfromthe list- 'ing Lside without danger of having the lite boa-ts *capsize through contact with the side the arm and adjacent the other edge from said gear segment and further projecting longitudinally of the rarm'beyond -the adjacen-t segment, means for pivotally mounting the end of theyarm remote fromthe socket upon the side of a ship a position to ha-vethe-segmen-t extend inwardly over an adjacent deck surfaee,;wvhen the arm is-in vertical position, and threaded means mount ed above and having. connection with "S3161 segment whereby the segment and socketcan ryingarm maybe swung outwardly upon the pivot forthe arm for the,.lowering o f-the davit.

In testimony whereof aflix my signature, Y

. I EVERETT B. GREEAR ofth e ship as so frequently happens where an attempt is made to lower boats from davirts which cannot beswung outwardly and, therefore, cannot move the life bo'ats out a sufiicient distance beyond the body of a ship, as it will only be necessary for the deck hands to rotate the shaft 13 associated with each davlit support and thus cause the davit 17 to tilt .or lean outwardly beyond the iships wal l; a Having thus described the invention, what isclaimed is':-

, 1.: In a boat davit'structure, aniarm',imeans tor pivotally connecting one end of thelsame Ptoa ships :side to extend upwardly therealong, a socket "at the upper end :of and carried bythe :arm, a :davit mounted in -the socket, a gear segmentintegral with the, arm atone side to extend inwardly over an adjacent deck, and a acrank operated worm .rnounted forconnection with the segment for facilitating the movement of the same :and the arm about the pivot of the arm.

2. In a boat davit structure, a housing for mounting on aships deck and having a downward extending port-ion for disposition against the :side of the ship, .said extension being open on its outer side and said opening extending into the adjacent outer side of the housing, an arm positioned in said housing extension :and 'pivotally 'attachediat its lower end'to the housing'to swing outwardly-theretronnsa socket carried by the arm at 11381113- per. end and disposed outside the housing,

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