US1237936A - Sack-holder. - Google Patents

Description

T. H. D. MAY.

SACK HOLDER.

APPLICATION man MAY 25, 1917.

1 9 Q37, 93 6 Patented Aug. 21, 1917.

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SACK HOLDER.

APPLICATION FILED MAY 25. 1917- L23'73936 Patented Aug. 21, 1917. I

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THOMAS Etienne DELABERE MAY, or BATH, ENGLAND.

SACK-HOLDER.

Specification of Letters Pat ent. Patentgd Aug, 21, 191'};

Application filed May 25, 1917. Serial No. 176,852.

tain new and useful Improvements in Sack.-

Holders, of which the following is a specification.

This invention relates to devices for holding open the mouths of sacks while these latter are being filled, weighing the said sacks if desired, and releasing the same when filled and placed ona cart, trolley or the like, and the object ofimy invention is to effect an economy in time and labor required, only one person being required to do all the work, which with ordinary pres ent day methods requires two or IIIOI'B'JPBT- sons, one for holding open the sack, and the other for filling.

This device or holder can be suspended from any suitable projection such as the hook of a crane, or of aspiring balance or steel-yard, or if for field service the hook or tripod or movable stand on wheels or otherwise, with or without a steel-yard. The sacks while being filled are preferably entirely suspended from the holder but part of the weightcould rest on the ground or other support and 5 part be counterweighted by a weight andcord over a pulley.

The device or holder consists of two c0mplementary arms or levers pivotedto a commen I pivot on to a small bracket slidably mounted on a framework. This framework consists preferably of two parallel bars joined at top or bottom, so as to be either a single piece of steel, or joined up ateach end. Secondly,,a-clip sliding on the framework, and inclosing the continuations of the two arms, which for this purpose are bent to more than aright angle to a little'beyond their pivot as shown. Thirdly, on the pivot or bolt or bracket on which the two arms are pivoted is aclipfor holding the back of the rim of the sack in a position somewhat higher than the working ends of the two levers when they are fully extended, so that the mouth of the bag shall hang in a sloping position facing the filler.

Referring to the drawings Figure 1 is a front elevation, the arms or levers of the holder being shown fully distended.

Fig. 2 is a side view of Fig. 1.

Fig. 3 is a partial view showing the two arms pivoted on independent pivots on a bracket. i

In these 1 is the frame consisting in the deviceherein set forth of two parallelbars joined at the bottom. At the top between the two bars of the frame 1 is placed a hook 2 capable of rotating on a'pivot 3, and of such shape that when in the position shown in Fig. 2, it forms a hook 4, and a locking surface 5, against. which the gravity or spring lock 7 presses, and prevents it from moving. A stop 30 guides the hook to the stop in the right position for locking. Beneath this hook pivoted on a pivot 6 is a locking piece 7. This is weighted so that it naturallylocks the hook in position but can bexforcibly pulled out by hand when the hook having nothing to hold it flies up and liberates the apparatus; The frame 1 is shown somewhat bentat 8 so as to hold the hind bar 9 of the clip from sliding up or down the frame. This hind bar 9 of the clip and the front bar-10 are held in position by a nut andbolt 11, and control the upper parts 12 and 13 of the arms which fit in between the two bars of the clip- These two bars are kept the right distance apart by distance pieces with or without antifriction rollers 31 on-the studs or bolts 32. The anti friction rollers therefore allow the parts 12 and 13 to move on them without much friction. The arms 12 and 13 with their lower parts 14: and 15 are pivoted together on the bolt 16 which slides freely in the slot of framework 1. On this bolt 16 is also attached hook 18 so as to hang freely. This hook'has pivoted 'to it by the pivot 19 a clamp rod 20,and' also at 21 there is pivoted to it a second clamp piece 22. The clamp rod 20 has atail end 23 abutting against the tail end 24 of the other clamping piece 22. The lower parts 1 1 and 15 of the arms are bent forward a little, andpreferably are twisted near the ends. Each preferably carries a friction pulley 25 fastened to it by a pivot '26 to cause it to slip easily on the inside of the the upper part of which clamps the bag firmly between thepro'jecting face of clamp, 20 and itself. The lower parts of the arms are now placed inside the sack and spread out wide they .descend by gravity in the frame until they thoroughly hold the sack. The upper parts ofthe arms rise-up and being held by the anti-friction rollers 31, with a little assistance by the operator the weight of the holder, sack and contents depress by their gravity'the pivot 16 in .the slotv as far as the arms pressing against the sack will allow it to go. The moment however the sack is filled, and isliberated to rest on the truck or the like, the pivot 16 is free to rise, and the lower parts of the arms fall naturally inward until they lie nearly or quite one against the other and the sack is liberated. The apparatus is now hooked up in place again,and is ready for use with another sack. When thebag is placed in position .on the arms, and the clamp, the weight coming on, the clamp mainly, the bag is suspended, and can be filled at leisure. It can be weighed while on the'steel yard, can be hoisted up by any mechanism, and placed on a truck or the like, and then the lock 7 turned over when the hook i is free to rotate and it is unhooked from its support. It is now found that the two arms fold back toward each other, andthey can be readily taken out ofythe sack, and there being no longer any weight on the back partof the rim of the sack, it is immediately freed from clip 20, 22.

It will be obvious in this .description that the distance between the bottom of the slot or space in the framework, and the clamp 9 must be only such as will not allow the very ends of the upper parts of the levers 12 and 18 to escape through the clamp 9, 10.

' In Fig. 3, I simply show a small modification in which the two' arms 12, 14, 13 and 15 respectively are separately pivoted on two pivots 16 and'27. Bythis arrangement the arms do not cross each other, and consequently the width between the two clamp ing pieces 9 and 10 can be only half the width shown in Figs. '1 and 2.

I declare that what I claim is 1. A sack holder comprising a vertical frame, a; vertically freely movable slide copies .gfthis patent-may be obtained for mounted on the frame, two sack-holding I arms-pivoted between their ends to said slide and having their upper ends bent outwardly in opposite directions, and relatively fixed operating means on the frame above the slide and engaging said bent ends to posiytively force them together and move the operating means on' theframe above the slide and engaging'said bent ends to positively force them together and move the the lower sack-engaging ends outwardly as the slide is' moved downwardly by the wei-ght'ofwthe filled sack.

'3. A sack holder comprising a vertical suspension frame, a vertically freely movable slide on the frame, a, stationary loop moimted on the frame above said slide, a

sack clamp mounted on the slide, two sackengaging arms pivoted by a common pivot to the slide with their upper crossed ends extending freely through said loop for positive action thereby.

4. A sack holdercomprising a vertical suspension frame, a vertically freely movable slide mounted on the'frame, a hook depending from the'slide, two interengaging clamp rods pivoted to said hook, two crossed sack-engaging arms pivoted to said slide and having their upper ends bent outwardly in opposite directions,and relatively fixed operating means on'the frame above said slidea'nd engaged by the outer edges of the outwardly bent ends ofsaid crossed arms for the purpose stated.

In witness whereof, I have hereunto signed my name this first day of June, 1917,

in thepresence'of two subscribing witnesses.

THOMAS HUGHES .DELABERE MAY.

Witnesses:

EDITH GINGELL,' VERONICA MAY.

five cents each, byaddi'essing the"c ommissioner of latents, 'WashingtonflLGP, Y

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