US1819390A

US1819390A - Sling

Info

Publication number: US1819390A
Application number: US493387A
Authority: US
Inventors: Seager Edward
Original assignee: Individual
Current assignee: Individual
Priority date: 1930-11-04
Filing date: 1930-11-04
Publication date: 1931-08-18
Anticipated expiration: 1948-08-18

Description

Aug. 18, 1931.- E. SEAGER 1,819,390

SLING Filed NOV. 4, 1930 Patented Aug. 18, 1931 UNITED STATES EDWARD SEAG-ER, OF DUQUESNE, PENN$YLVANIA SLING Application filed November 4, 1930. Serial No. 493,387.

This invention relates to slings for handling barrels, drums and the like by means of a hoist or crane, and has in view the provision of a sling which is an improvementon the usual type of slings heretofore devised in that it is positive in its grip and will not slip due to jarring, greasy surfaces, contact of the hooks against some object causing the hooks to turn sidewise or slackening of the chain due to unintentional release of the weight of the drum or barrel being handled.

The type of sling which has been heretofore most commonly used was comprised of a pair of chains connected at one end to a ring for attaching to the hoist hook and at their opposite ends provided with a hook adapted to hook over the projecting staves or rim at the head of the drum. This type of sling is an example of slings which are liable to become unhooked from the barrel or drum due to the above recited causes, and in some instances serious accidents result from the drum or barrel falling when the hooks become disengaged thus rendering the use of such types of slings hazardous.

The present sling eliminates any possibility of accidental release of the hooks from the barrel or drum by providing a spreader between the two hooks which may be adjusted to barrels or drums of different lengths, said spreader being provided with a clamping device by which the sling may be locked in position on the drum before hoist- 111 Ihe novel features of construction of the improved sling will be rendered readily apparent in view of the following description taken in conjunction with the drawings, wherein Figures 1 and 2 are views in elevation and Ian of a sling constructed in accordance with the features of the invention; and

Figs. 3 and 4 are detail views of parts of the sling.

The improved sling consists of two cooperating

hook bars

5 and 6, preferably made of steel and rectangular in cross section, each bar being of suitable length, in the present instance approximately two-thirds the length of a standard barrel or drum, and

formed at one end into a hook 7 adapted to i engage the projecting rim .on the head of the barrel or drum. The oppositeextremities of the

bars

5 and 6, when in assembled relation, overlap each other and said bars are shaped.;;;,: to fit, or approximately lit, the contour of" the body of the barrel or drum.

On the back of the hook end of each bar a lug 8 is formed, said lug having an eye 9 for attaching a chain, wire rope or like mem-. her 10, each chain being suspended from a" common ring 12, which is adapted to receive the hoist or crane hook.

The top hook bar 5 is provided with a longitudinal slot 13, for adjusting the length of; es the sling to different drums. Through this slot 13 a threaded clamping bolt 14L projects, said bolt being rigidly fixed to the lower hook bar 6 and provided with a washer 15 and Wing nut 16, by means of which the 110011 50 bars may be clamped together after the said bars are adjusted to the drum with the hooks 7 in engagement with the projecting rim of the drum.

The hook bar 6 has secured thereto guides. 17, one on each side of the clamping bolt as sembly, which are adapted to receive hook bar 5 and allow it to slide freely when adjusting the length of the sling. A pin or lug 18 is formed on the end of hook bar 5 and s0 acts as a stop when it comes in contact with" the one guide 17 when the sling is fully extended.

The wing nut 16 being loosened, the

hook bars

5 and 6 may be readily attached to the -$5 drum, after which the nut is tightened and the barrel or drum is ready to be hoisted. It will be apparent that there is no possibility of the sling becoming disengaged until the nut 16 is released.

What is claimed as new is i 1. A sling comprising a pair of hook bars which overlap at one extremity and are provided with hooks at their opposite extremities, one of said bars being provided with 21,,95 bolt on its overlapped extremity which projects through a slot in the other bar whereby the bars may be adjusted to the length of a drum, guide brackets for the overlapped extremities of said bars, stops for limiting the movement of said bars in said brackets, a clamping device for fixing said bars in adjusted position, and eye-lugs for attaching a suspending means to said bars.

2. A sling comprising a pair of hook bars which overlap at one extremity and are provied With integral hooks at their opposite eX- tremities, said bars being adjustable longitudinally relative to each other, means for locking said overlapped bars against movement relative to each other, guide brackets for the overlapped extremities of said bars,

stops for limiting the movement of said bars in said brackets, a clamping device for fixing said bars in adjusting position, and integral eye-lugs adj acent the hook'ends for attaching a suspending means to said bars.

In testimony whereof, I have hereunto set my hand.

EDWARD SEAGER.