US1662713A - Attachment for hoisting slings - Google Patents

Description

March 13, 1928. 1,662,713

L R. MgLLER ATTACHMENT FOR HOISTING SLINGS` Filed May 27. 1927 ATTORNEYS Patented Mar. 13, 1928.

UNITED y STATES LEE ROBERT MILLER, F NEW YORK, Y.

ATTACHMENT ron HoIsTING sLINGs;

Application med nay 27,

This invention relates to an attachment for hoisting slings.

' An object of the invention is to provide an attachment which is secured to the loop of a cable or analogous sling and which functions to insure ythe centering of the lift or pull relative to the beam or other part being li'ted, and to cause said beam or part to be liftedat the desired angle. j

A further object is to provide an attachment of this character which by reversal is adapted for use without removal on different sizes of beam and which not only functions to insure a proper centering of the beam and sling relative to each other but also spreads the loop to prevent an undue bite in the loop.

A further object of the invention is to provide an attachment ofW this character which can be manufactured and sold at a reasonably low price, which will enable the beam to be lifted without danger of slippage of the sling7 and which will most eiiciently perform the functions for which it is intended.

lith these and other objects in view, the invention consists in certain novel features of construction and combinations and arrangements of parts which will be more fully hereinafter described and pointed out in the claims.

In the accompanying drawings- Figure 1 is a view showing the sling in elevation and an I-beam in section, with my improved attachment in operative position on the sling;

'Figure 2 is a view similar to Figure 1, showing the attachment reversed Afor a larger size of beam;

Figure 3 is a view in side elevation looking at the right hand side of Figure 2;

Figure 4 is a view in section on the line 4-4 of Figure 5;

Figure 5 is a view in side elevation of the attachment in operative position on the loop of a sling;

Figre 6 is a plan view of Figure 5;

Figure 7 is a view on a reduced scale showing how the sling may be positioned longitudinally around the beam with my improved attachment thereon.

1 represents a cable which may be of steel or any other suitable material and which has a loon 2 at one end through which the cable is positioned after being located around a beam 3 or other part to be lifted. I have shown the beam 3 as an I-beam but lit is ob- 1927. serial No.i94,773.

vious that anyfother form of beam or analogous article may be lifted. f

My improved attachment Vcomprises two angle bars 4 and 5, the former being prefer- 60 ably wider or higher than the latter' so that the laterally projecting flange G of bar 4 is normally in a higher plan-e than the laterally projecting flange 7y of bar 5. The bar 5 isy preferably formed with recesses or sea-ts 8 to 65 receive the two runs of the loop 2. U-bolts Q'are projected through registering openings in the bars 4 and and have nuts 10 screwed thereon so that when said nuts 10 are screwed home with the'attach- 70 ment properly positioned on the runs of the loop 2 the attachment will be rigidly secured to the loop and will Vhold the loopy spread so that the cable will not bite unduly into the sling. Iny other words,` without such la 75 spreader thev sling Ais drawn with its sides more or less parallel and a very sharp angular bite is had in the sling which oftentimes results in injury to the sling. This, however, is only one ypart of my invention, the primary object of the same being to engage the-beam 3 so that the cable will properly center on the beam, as clearly illust-rated in Figures 1 and 2. i j

In operation, after the attachment is clamped on the loop of the sling and the sling located` around the beam 3, one of the bars 4 and 5 will engage under a flange of the beam, as clearly indicated in Figures 1 and 2.' This reversal of the parts is desir- 90 able as it enables either the bar 4 or the bar 5 to engage under the flange of the beam, as i shown in Figures 1 and v2, respectively, so as to center the cable or sling with relation to the beam and use the attachment` without ady y justment on different sizes of beam.

It is of course to be clearly understood that the attachment may be adjusted on the loop so as to properly center the pull of the cable on any size of beam, but in any event by simply reversing the loop, different sizes of beams may he properly accommodated in the sling.

Furthermore, yI preferably provide a central recess 11 in the bar or rather in the 105 flange 7 of said bar so that in the event it be desiredto have several runs of `cable or rope around the bar they may be accommodated in this recess and centrally disposed relative to the attachment.

As shown in Figure 7, the attachment may be used to engage one end of the beam 3 with the slingpositioned longitudinally around the beam so as to allow the beam to be lifted atr an)v desired angle.

lVhile I hare illustrated what I believe to be a preferred Construction. it is to be clistinetl)7 nndergtood that I do not. Wish to be limited to y neh construction butl desire to Cover the idea broadhv ot an attachment which which not only spreads the loop of a hoist hat engages the beam or other part to be li't'ted so as to properly center the pall otl the hoist relative, to the beam or other artiele. llenee rarion` changes and alterations might be matie in the general lorm ot the parts` described without departingY from my invention and therefore lV do not limit: n1 self to the preeiee details. set orth hat consider nrrselt at liherty to make sneh changes and alterations; as fair r fall within the lQpirit and Scope of the appended elain'ls.

l claim:

l.. An attaehment for hoisting,l slings, including; a pair ol meml'iers adapted to be. clamped to the runs of the loop of the l@lingr intermediate the ends of the Sling and engage a beam or other article to he hoisted.

Q. An attachment for hreiiatineT slings, including a pair kof members adapted to be elamped to the runs of the loop of the sling and engage a beam or other article to he hoisted, both of said members comprising angle bare, one ot' which is appreeiahhvv wider or higher .Co that it is normallv di1-- poed in a plane higher than the other whereby when the sling reversed the attaehment is adapted for another size or sizes ot1 beam.

3. An 'attachment ol' thtl character le scribed, comprising a pair oti angle hars adapted to engage the rims o'lE a .filing hetween them, the flange ot one liar beingl in a higher plane than the langre ol the other.

4. An attachmentY ol' the 'lmrarter le- Serihed, comprisingr a pair ot' anghI hars adapted to engage the runs ot' a Slim." hetween them, the [lange ol one bar being in :i higher plane than the flange of the other, and one of; said tlanges having a central. re- Cess therein.

An attachment of the Character deiserihed, comprising a pair ot angle hara adapted to receive the rims of the loop of a Sling hetween them, one of said bains` harinar recesses aeeonnnodatiirgT the runs of the looli, U-holts projected through the bare, and natie on the Said bolt-p

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