US1860574A - Elevator structure for boats - Google Patents

Description

y 31, 1932- N. FAY ET AL ELEVATOR STRUCTURE FOR BOATS Filed Sept. 15, 1931 2 Sheets-Sheet INVENTORS Nabmn Fag 6 ZVIJL' L'I2 44.1 BY

ATTORNEY 2 Sheets-Sheet 2 N. FAY ET AL ELEVATOR STRUCTURE FOR BOATS Filed Sept. 15, 1951 nth May 31, 1932.

INVENTORS 9 If '7 y ATTQRNEY Nahum Fa,

L'IJA-F Nora @k gm V UNITED} sTA Patented May 31, 1932 (BET NAHUM FAY AND nosvin A. FAY, or SACRAMENTO, camroanm ELEVATOR srrworuan roa Bears 7 Application filed September 15, 1931. Serial No. 562,908;

This invention relates to cargo or freight carrying vessels and especially to vessels of the flush deck and low free board type, whether self propelled or towed such as are extensively used in river service.

The freightin Vessels of this character is carried on the main deck, a portion of which when the vessel is tiedup at awharf or pier is connected with the wharf by the gangway so that the cargo can be loaded or unloaded with the aid of hand or power trucks.

Such vessels are sometimes used in service between river and sea ports. The river wharves are built to accommodate the needs of river vessels, but the wharves at sea ports.

' the necessary traction, or the freight must be handled with derricks and slings.

The principal object of our invention is to provide an elevator structure adapted to be permanently mounted on the vessel at a convenient point in its length, and so arranged that the freight'as carried on to or off the elevator-from the vessel may be readily raised to the level of the gangway when the latter is disposed on a level or at an easy slant. In

" this manner the handling of the freight is greatly facilitated and the height of, the wharf from the deck of the vessel or the rise and fall of the tidedonot interfere in any way with this facility of handling.

We also preferably provide a separate pair of elevators, each operable independently'of the other and disposed toward the opposite sides of the vessel, sothat the latter may tie up with either side against the wharf. We

have also arranged the elevators so that the idle one does not interfere with the freedom of movement of the freight handlers using the other one, nordo the elevators and their supporting structureinterfere with the neo- A further object of the invention is to produce a simple and inexpensive device and yet one which will be exceedinglyeffective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as will fully appear bya perusal of the following specification and claims.

'In the drawingssimilar characters of reference indicate corresponding parts in the several views: I r

Fig. 1 is a fragmentary side outline of a river freight boat showing the elevator structure installed thereon.

Fig. 2 is a transverse section taken on the line 22 of Fig. 1 showing one of the elevatorscooperating with a wharf gangway.

Fig. 3 is a fragmentary perspective view showing the guide connectionsbetween the elevator and its supporting derrick.

Referring now more particularly to the characters of reference onthe drawings, the

numeral 1 denotes in general a boat of the characterabove defined having a main freight carrying deck 2. In the present instance the boat isalsoindicated as having a main superstructure 3 over the deck and an additional freight housing 4 ahead of and spaced from the super-structure. The freight loading or unloading elevators are disposed between the super-structure and the housing, or at any de- I sired and convenient point in the length of the vessel if it is of the plain barge type without the super-structure.

The elevators of which there are two ar- I ranged toward the opposite sidesof the boat in transversely alined relation, each comprises an elevator platform 5 provided at its sides and centrally of its width with uprights 6 connected at their upper ends to the boat and its width, relative to the beam 95 of the vessel is such that there is a considerable space left between the two platforms as shown in Fig. 2.

The uprights are preferably in the form jessaryvisibility of thenavigator ofthe craft. "of channels which face and engage rails 9 mounted on the adjacent sides of the upright beams 10 of the supporting derrick as shown in Fig. 3. The derrick beams extend upwardly from the deck of the boat to a height sufficient to permit of the raising of the elevator to whatever level may be necessary to cooperate with any wharf gangway. The beams 10 are braced by diagonal beams 11 which extend transversely of the boat and are secured to the outer sides of said beams 10, so as to offer no interference with the trucking of freight on to or off either elevator from the space therebetween. The beams 10 are connected and capped by spaced cross beams 12.

Mounted centrally between the beams 12 is a multiple sheave unit 13 and a similar unit 14 is mounted in a corresponding position between the elevator cross beams 7. hoisting cable 15 anchored at one end on the beams 12 passes about the sheaves of these units alternately and then over an idler sheave 16 mounted at one end of the beams 12. From the sheave 16 the cable passes down to and about another idler sheave 17 mounted on the adjacent beam lO at a suitable level. From this sheave the cable is conveyed to the drum of a suitable power winch indicated at 18 and which is located in such position (preferably on top of the housing 3 if such is present) that the operator has a commanding view of the elevators in any position. The winch is preferably of the double independent drum type, there being one drum for the cable of each elevator so thatone operator may control the movements of both elevators independently.

The elevator platforms when in their lowest position rest on the deck 2 of the boat, a

raised or false decking 19 being built up between the platforms so that the platforms and said decking are flush. Said false decking at both ends, or forward and aft of the elevators slopes down to a smooth junction with the main deck as shown in Fig. 1. In thismanner smooth trucking onto and off the platforms from the main deck is assured.

In operation the vessel may tie up to the wharf 20 with either side against the wharf, and so that its gangway 21, if such is provided, is alined with the corresponding elevator; If the freight is to be unloaded from the boat the elevator is loaded, preferably with the aid of hand or small power trucks, the elevator is raised until it engages the overhanging apron 22 of the gangway, and it is then'held stationary until the freight is removed from the elevator and run up the gangway onto the wharf. The elevator is then again lowered and the operations are repeated. The range of possible vertical movement of the elevators is such that they may cooperate with the apron at any stage of the tide or regardless of the normal height of the wharf from the water line without having to set the apron at an excessive slope. Freight handling operations are therefore facilitated and expedited under all conditions. 7

From the foregoing description it will be readily seen that we have produced such a device as substantially fulfills the objects of the invention as set forth herein.

WVhile this specification sets forth in detail the resent and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the ap ended claims.

Having thus descri ed our invention what we claim as new and useful and desire to secure by Letters Patent is:

1. An elevator structure for a boat comprising an elevator platform adapted when in its lowest position to rest on the freightcarrying deck of the vessel and its outer side edge lying adjacent one side of the boat, false decking laid on the boat deck to extend to and lie flush with the platform when in said position, said decking sloping to a smooth junction with the boat deck some distance beyond the platform, and means mounted on the boat and connected to the platform to raise and lower the same at will.

2. An elevator structure for a boat comprising separate transversely alined elevator platforms extending toward each other from adjacent the opposite sides of the boat, with their adjacent edges spaced some distance from each other; said platforms when in their lowest position lying on the deck of the boat, false decking between and flush with the platforms and sloping lengthwise of the boat to a smooth junction with the boat deck, and means to independently raise and lower the platforms.

3. An elevator structure for a boat comprising an elevator platform adapted when in its lowest position to rest on the freight carrying deck of the boat and its outer side edge lying adjacent one side of the boat, means connected to the platform to raise and lower the same at will, and a runway resting on the deck of the boat and sloping from and level with one edge of the platform other than that adjacent the side of the boat to a termination level with the deck a certain distance beyond the platform.

4. An elevator structure for a boat comprising an elevator platform adapted when in its lowest position to rest on the freight carrying deck of the boat and its outer side edge lying adjacent one side of the boat, a

derrick mounted on the boat and comprising uprights disposed fore and aft of the platform and between which the platform extends and a cross-beam on top of the uprights; a crossbeam connected to the platform some distance above the same, a hoist mounted a certain distance above the platform and spaced therefrom lengthwise of the boat, and a hoisting cable extending from the'hoist to the adjacent upright, then to the to of the upright and along the derrick crosslieam to a point centrally of the length thereof and then downwardly to a connection with the platform crossheam, and direction changing pulleys over which the cable passes at predetermined intervals.

In testimony whereof we aifix our signatures.

NORVINA. FAY. NAHUM FAY; V

Images