US1203483A - Hoisting device. - Google Patents

Description

F. J. CARRIER.

HOISTING DEVICE.

APPLICATION FILED AUG-14, 1916..

1,203,483. Patented Oct. 31,1916.

appertains to Francisco, in the county of and State'of California, have 'gether while being is induced by the binding UNITED STATES PATENT orrrcn.

FRED JOSEPH CARRIER, OF SAN FRANCISCO, CALIFORNIA.

HOISTING nEvIcE. V I

Specification of Iletters Patent.

rateneeaoet. 31, 1916.

Application filed August 14, 1916. Serial No.114,831.

To all whom it may concern:

, Be it known that I, FRED J. CARRIER, a citizen of the United States, residing at San San Francisco invented certain new and useful Improvements in Hoisting Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it make and usethe same.

This invention relates to hoisting, and

more especially to buckets; and the object of the same is to produce a device which might be more accurately called a box for use in stevedoring, although I do not wish to be limited to this use.

It is well known to those who load and unload ships that much damage occurs to boxes, barrels, sacks, crates, cans, and other containers of goods which are especially soft, when they are pressed or jammed toloaded or unloaded in the usual rope slings or nets. For instance, when using a rope sling to handle oil in cans or boxes'of oranges or the like, some of the cans are crushed or boxes are broken frequently by the binding of the rope against them; and even barrels containing vinegar, etc, have the staves pressed in by the pressureof the barrels against each other which of the rope brought about by the weight of the load being'hoisted. On the other hand, if the cargo is handled in a bucket made in the shape of a box, it rolls about therein and the smaller pieces of cargo are injured and broken by contact with each other or with "the sides of the box;

. The hoisting device forming the subject of my invention is providedwith foldable sides mounted on such hingesand in such manner that they may be letdown onto the dock and the contents rolled out of the box over the sides,or a truck rolled into the box over the sides and the contents carried out on the truck. a

Details of construction are set forth in the following specification and amplified in the drawings wherein Figure 1 is a perspective view of this device in use, three of the sides being enlarged by the insertionof light railings. Fig. 2 is a cross'section showing one of the sides let down, and Fig. 3 is a longitudinal section showing one of the ends as hinged and capable of being let down.

Referring to the drawings by reference numbers, when this device is made of wood I provide usually three sills 1 which underlie and stand at right angles to the grain of the bottom 2, and the numerals 3 designate end pieces which maybe rigidly mounted across the extremities of the bottom as seen in Fig. 1, or one or both of which may be hinged thereto as explained below. In either case the extremities of the end pieces are notched or rabbeted as shown at 4. Metal straps 5 may be secured beneath the bottom 2 and turned up and secured to the outer faces of the end pieces as at 6, and these may rise above the end pieces and be provided with eyes as indicatedat 7 Other transverse metal straps 8 may also be extended beneath the bottom and upturned at its edges, where they are provided with loops 9 whose shape is best seenin Fig. 2.

The numerals 18 designate the whose extremities 14 rest in the rabbets 4 when the side pieces are upright, as best seen in Fig. 1. For strengthening these side pieces, metal straps 18 may be secured thereover as shown, and each strap carries an eye 19 offset from its outer face and depending below its lower edge so as to loosely engage one of the loops 9, as best seen in Fig. 2. Two sling ropes 17 are provided, each leading from an eye 16 in twostretches which pass through the eyes 7, around the corners of the box or bucket, and are connected as at 15 to the side pieces 13 in any suitable manner, as by being ro-ve through holes therein as indicated in Fig. 1. The eyes 16 of the two slings are connected with a hook 10 or other fastening device on the hoisting rope 11. a

side pieces carried out upon the truck.

may also be hinged as indicated at the right of Fig. 3. Here the end piece 3 is shown as.

having an eye 19 engaging a loop 9' in the same manner that either side piece 13 is hinged. The use of this particular form of hinge enables the panel to be let down as seen at the left of Fig. 2 so that the contents of the box may he slid out over the panel or a truck may travel inward or outward over said panel, and the latter therefore serves as a skid and permits the use of sills 1 of considerable thickness.

When this device is filled with freight, even though it be in light cans or containers easily crushed or broken, draft on the hoisting rope 11 is communicated to the sling ropes 17 which slide through the eyes 7 and cause the rise of the side pieces 13 ;,their extremities 14 enter the rabbets 4 which prevent the sides from moving farther inward than to an upright position, and the same is true of the end pieces 3 whether they are rigid or hinged. Therefore the weight of the load automatically'holds the side panels upright and yet no pressure is put on the freight tending to crush or break it. Let us assume that the loaded device is hoisted out of the ships hold and swung over and lowered upon .the dock. Immediately the sills rest thereon and take the weight of the load, the sling ropes 17 become slack and the side pieces 13 fall open as seen at the left of Fig. 2, or might even be forced open by the expanding tendency of loose freight such as small cans of oil or paint. The same can now be easily unloaded, or if the freight be in large pieces or packages a truck can be rolled over the side pieces and the freight In either event the opening outward of one or more of the upright panels avoids the necessity for lifting all the pieces of freight over the same; and this also is true in loading the device. If the freight is of a very light character, the railings 20 could be added and the pieces of freight stacked quite high; or heavier pieces could be put into the body of the box, and lighter pieces piled on top. In unloading, the lighter pieces will be first taken off and then the heavierthe' railings being removed or not as desired. It is quite possible to use this device for loading and unloading ships with grain or other freight in granular form, more or less fine, such as coal. I find by experience that should the device catch under the hatch coamings and be tilted to a considerable angle while it is demanded, and to make changes in details or to add to the whole as experience proves desirable.

\Vhat I claim is:

1. In a hoisting device, the combination with a box-like receptacle comprising a rigid bottom, and panels certain of which rise rigidly from the edges thereof and others of a which are hinged to said edges, the rigid panels being rabbeted at their ends toreceive the extremities of the other panels when the latter stand upright; of straps secured to and rising above the rigid panels and having eyes, and sling ropes each of whose stretches passes through one of said eyes, around a corner of the box, and is attached at an adjacent point'to the hinged panel.

2. Ina hoisting device, the combination mounted thereon,

with sills, a rigid bottom upright loops secured in its edges, rigid end pieces secured across the ends of the bottom and each havingits extremities rabbeted, and guide eyes carried by these end pieces;

of foldable side side edges of the bottom and adapted to rest at their extremities within said rabbets when 7 they stand upright, depending eyes on the outer faces of the side pieces loosely engaging said loops, and sling ropes whereofeach stretch passes one corner of the box, and is attached to a side piece. 7 j

3. The herein described hoisting device comprising a rectangular bottom, transverse straps secured beneath the bottom and turned up at its edges and there carrying vertically elongated loops, end pieces across the extremities of the bottom, straps secured to said end pieces and projecting above the same and provided with guide eyes, foldable side pieces resting on the edges of said bottom, depending eyes on the side pieces loosely engaging said loops, the extremities of the side pieces engaging the end pieces when upright, and sling ropes each passing through one of said guide eyes'and around pieces mounted along the through a guide eye, around ios one corner and being connected witha side piece, the whole for operation substantially as described. g

at. The hereinv described hoisting device comprising a rectangular bottom, transverse straps secured beneath the bottom and turned up at'its edges and there carrying vertically elongated loops, end pieces across the extremities of the bottom, longitudinal straps secured beneath the latter and turned up and secured to said end pieces and proand two sling ropes each having an eye at its jecting above the same and provided with center and two stretches leading therefrom, guide eyes, foldable side pieces resting on each stretch passing through one of said the edges of said bottom, depending eyes on guide eyes and around one corner of the box 5 the side pieces loosely engaging said loops, and being connected with a side piece, the the extremities of the side pieces engaging whole for operation substantially as dethe end pieces when the former stand upscribed. v right and all upright panels having sockets In testimony whereof I afiix my signature.

in their upper edges, a series of extension 10 railings removably inserted in said sockets, FRED JOSEPH CARRIER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G.

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