US115292A - Boss l - Google Patents

Description

specification.

Rossi.. FITom-onsme SING, AssIeNoR ToHIMsELF AND WILLIAM A. i i vAN noUTEN, or HAvERsTRAw, New Nomi.

iMPRovi-:MENrm vHoISTINCrAND LowERING APPARATUS.

Specification forming part of Letters Patent No. 115,292, dated May 30, 1871.

all whom it may conceriu Be it known that I, RossL. FITCH, of Sing Sing, in the county of Westchester and State of New York, have invented a new and Improved Hoisting and` Lowering Machine; and

I `do` hereby declare that` the following is a full, clear, and exact description thereof, which will enable others skilled in `the art to make and use the samereference`being'had to the accompanying drawingforming part of this This invention `relates"toimprovements in machines forhoistinglfreightfrom the holds of vessels or lowering it thereto, especially barrel freight; and it consists in a carriage or platform suspended at one edge by cords from a hoisting-drum, and having arigid guide attached to said edge toprevent it from tilting, which carriage is providedwith apparatus for discharging the barrel automatically when it `strikes the bottom of thehold in lowering freight into it,-and, beingproperly shifted,

will also discharge the barrel on the deck automatically `when raising freight, all as here- ^inafterdescribed.

. Figure l is'a sectional elevation of the apparatus when the platform is arranged for discharging the barrel at the bottom of the hold, y Fig. 2 is a similar section, showing the `arrangement for discharging at the top; Fig. 3 is a perspective view. ofthe platform when arranged as indicated in Fig. 1; and Fig. 4 is a perspective view of it, showing the arrange ment indicated in Fig. 2. n

. Similar letters of reference indicate corre-v strong wood bars D rising up from it between the guides `E to prevent itfrom tilting or swinging ont of the vertical ylinein consequence of being `so suspendedatfone side.

The cords() are wound around thetdrum F, on which another cord, G, is wound, said cord passing up over a pulley, H, at the top of the frame I, extending. considerably above the drum, and having a weight, K, which shall be heavy enough to raise the platform out of the `hold by turning the drum F, when the machine is used for lowering freight into the hold; but when `used forraising freight out of the hold plied to thedrum. N is a frame pivoted in the platform at U and having projecting lugs P at the heel, which, striking on the floor of v the vessel before the platform comes down to the Hoor, will arrest the downward motion at lthat side, while thefront side, continuing to' go down, the frame will take such an inclined position as to cause the barrel to roll'off instantly. The rear end of this frame is suspended by a bail,- Q, pivoted on bar W, from a hook, R, on the rear bar S of the platform,

when used in thisway for discharging, the

said bail having arms T extending across to the bar U and resting upon it.

When the machine is used for hoisting and automatically discharging at the top the said f frame, being first shifted bottom side up, `is suspended at the rear by the arms T, turned back overthe beam at S, as shown in Fig. 4, and another set of arms, V, pivoted to bar U and extending backward A4under bail Q a-nd onto bar WV, whereon they rest. The side arms in this case project backward beyond the bar at S, so that when the platform rises up to the deck they come in contact with the bar X, and being arrested from further movementupward swing the rear side of the frame N and throw the barrel off. The said frame N is shifted the other side up when arranged for discharging on the deck, in order to adjust the bail Q and arms T to be turned over bar at S, as shown in Fig. 4:, and have the arms V connected with` said bail, as shown, for supporting the rear side of said frame. For heavy hoisting the rope connecting the platform with the drum passes under` the` pulley Z, and is attached to a support at the deck, so as to double theleverage of the hoisting-gear.

Of course the machine mayv be 'used for hoisting or lowering in warehouses or `in any other location as well as in vessels. Ilavin gr thus described my invention, I claim as new and desire to secure by Letters Patent- 1 The combination of the platform-bars D,

hoisting-cord C, drum F, weighted cord G,

and brake L, al1 arranged iu a suitable frame, arms T and V, said arms T being attached to substantially as specified. v bali Q, operating substantially as specified.

2. The combination, with the platform, of The above specification of my invention the tilting-frame N, a suspending-haii, Q, and signed by me this 29th day of March, 1871. a hook, R, substantially as speeiied.

3. rEhe said tilting-frame, arranged to be shifted as described, andv provided with the Witnesses: ROSS L. FITCH.

GEO. W. MABEE,

ALEX. F. ROBERTS.

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