US1798456A - Hoisting apparatus - Google Patents

Description

March 31, 1931. P CARROLL 1,798,456

HOISTING APPARATUS Filed Jan. 21.- 1928 2 Sheets-Sheet l ELUQJYIZJT' Samuel E. Carroll 59 din/2% W @2 9 Ma 3 931- s. P. CARROLL 1,798,456

HOISTING APPARATUS Filed Jan. 21, 1928 2 Sheets-Sheet 2 Patented Mar. 31, 1931 UNlTE STTES ATENT OFFICE SAMUEL P. CARROLL, OF HAMMOND, INDIANA, ASSIGNOR, BY MES NE ASSIGNMENTS,

OF ONE-HALF TO PETER FRANTZ AND ONE-HALF 'I'O SAMUEL P. CARROLL I-IOISTING APPARATUS Application filed January 21, 1928. Serial No. 248,383.

This invention relates to hoisting apparatus, and more particularly to apparatus of this kind for raising a horizontally disposed heavy body into a more or less vertical position, by tilting said body on one edge thereof.

The object of the invention is to provlde a novel and improved construction and arrangement whereby a hoisting apparatus of this kind is provided of simple and inexpensive construction and of such character that it can be safely used for gently tilting a slab of concrete, for example, or other masonry, from the horizontal position in which it was made, into a more or less vertical position, such, for example, as the position in which a slab of concrete or other masonry would oocupy in the construction of a building.

It is also an object to provide certain details and features of construction and combinations tending to increase the general efiiciency and the desirability of a hoisting apparatus of this particular character.

To the foregoing and other useful ends, the invention consists in the matters hereinafter set forth and claimed, and shown in the accompanying drawings, in which,-

Fig. 1 is a side elevation of a hoisting apparatus embodying the principles of the invention, showing the body of concrete or other masonry or material in a horizontal position.

Fig. 2 is a similar view, showing the said body raised or tilted into a vertical position.

Fig. 3 is a horizontal section on line 33 in Fig. 1.

Fig. 4 is a front elevation of said apparatus.

As thus illustrated, the invention comprises a lifting beam 1 disposed under the cross beams 52, as shown, the opposite end portions of the latter having yokes 3 provided at their lower ends with removable bolts 4, as shown. The slab 5 of concrete, or other masonry or material, is cast or made with washers 6 therein, each washer having a threaded opening for the threaded end of an eye bolt 7, whereby the slab when made has the two eyes of the eye bolts exposed on the upper surface thereof, near the edge of the slab which is to be uppermost when the slab is tilted into a vertical position. The bolts 4 are inserted through the eyes of the eye bolts 7, as shown, and the beam 1 has a hearing 8 on the other edge portion of the slab, as shown. The hoisting end of the beam 1 has a sheave 9 for engaging the hoisting cable 10, which has one end attached at 11 to the upper portion of the derrick beam or mast 12, the latter having its upper end portion provided with a sheave 13 for said cable, the latter then being brought down and wound upon the hand drunr 1 L suitably mounted on said derrick beam or mast. The lower end of the beam or mast 12 is suitably secured to a transverse foot beam 15 provided with a metal shoe 16 having a downturned lip 17 for engaging the supporting member 18 which serves as a fulcrum upon which the derrick beam or mast tilts backward as the slab 5 is raised, drawings.

With this construction, and after the apparatus has'been connected to the slab, as shown in Fig. 1, the rotation of the drum ldwill cause the slab to slowly and gently tilt upward about its lower edge 19, so that the slab itself assists in maintaining the equilibrium of the apparatus during the raising of the slab into vertical position, as the hoisting beam 1 does not at any time engage the door 20 upon which the slab 5 is disposed in horizontal position. The slab can be made on this floor or support in horizontal position, with the washers 6 and eye bolts 7 therein, and the apparatus can then be attached as shown in Fig. 1, and the slab can then be tilted into the position which it will occupy in the finish-edv building, if the slab is to be incorporated in the structure of a house or other building.

After the slab or wall section 5 is in vertical position, the bolts 4 can be removed, to disconnect the hoisting apparatus from the slab or wall section, and the eye bolts 7 can then be unscrewed from the washers 6, and i the holes left by the removal of the eye bolts can then be plastered over or concealed in any desired manner.

It will be seen that as the slab 5 tilts upward, about its edge 19,

the hoisting beam as shown in Fig. 2 of the v or mast 12 tilts backward on the corner of the supporting m mber 18. The beam 1 is prefer ,ly l vith plate which are bolted or otherwise secured to the sides of the beam 1, to embrace the ht beam or mast 12, so that the latter 1 a guide for the upwardly moving end portion of the beam 1, whereby the beam or ast 12 may lean upon such guide during the gradual ra '"1g of the slab 5 into a vertical position, the guide formed by the plates 21 sliding along the under side of the inclined beam or mast 12, and the sheave 9 rolling along this under side of the beam or mast 12, so that there is very little friction and practically no resistance to overcome except that oiiered by the weight of the earn 1 and the slab 5 while the hoisting operation is in progress. Of course, when the drum 14: is operated, to pull the slab into a vertical position, the sheave 9 is rotated in a direction to cause it to roll along the under side of the t lting hoisting beam or mast 12, in a manner that will be readily understood, the groove of the sheave being made deep enough so that the cable does not rub on the under side of the beam or mast 12 during such operation.

The apparatus is comparatively simple, and it is not so heavy but that it can be fairly easily moved about, from one place to an other, to tilt successive slabs into vertical position, so that the slabs will form sections of the walls of a house or other building.

V ithout disclaiming anything, and without prejudice to any novelty disclosed, What I claim as my invention is:

1. Hoisting apparatus for tilting a more or less horizontally disposed body into a more or less vertically disposed position, comprising a derrick beam or mast, a member for separable attachment to the said body, by placing the member on top of said body while the latter is resting iorizontally, a hoisting cable connecting the mast with said member, and means for operating said cable, thereby to tilt said body upwardly about its lower edge as a fulcrum, said mast having a lower end portion upon which the mast tilts backward and provisions whereby the mast forms a guide along which the adjacent end portion of said member travels upward until said body reaches the desired position, leaving said body in position for disconnection from said member.

2. A structure as specified in claim 1, said member being a beam adapted to extend across the upper side of said body, and cross beams extending transversely of said member, together with attaching devices for the opposite end portions of said cross beams to detachably connect the cross beams to the upper side of said body near the edge thereof which will be uppermost when the body is tilted into an upright position.

3. A structure as specified in claim 1, said member having a sheave for engaging the underside of the inclined mast, and for engaging said cable, the mast having an overhead sheave for also engaging said cable, the sheave on said member being rotated by the cable in a direction causing this sheave to roll along the under side of the inclined mast.

4. A str icture as specified in claim 1, comprising eye bolts detachably fixed in said body, bolts removably inserted through said eye bolts, and means to support said bolts on said member, the eye bolts being removable from said body after the latter is tilted into upright position.

5. A structure specified in claim 1, said member being disposed in position to prevent it from touching the support upon which said body is supported during the tilting thereof into an upright position.

Specification signed this 17th day of January, 1928.

SAMUEL P. CARROLL.

Images