US1723721A - Elevating apparatus for building materials, etc. - Google Patents

Description

Aixgffi, I929. J. BUSHNELL 1,723,721

ELEVATING APPARATUS FOR BUILDING MATERIALS ETC Filed Jan. 27, 1928 Patented Aug. 6, 1929.

UNITED STATES PATENT OFFICE.

JAMES E. BUSHNELL, OF NORTH PLAINFIELD, JERSEY, ASSIGNOR 1'0 RAN SOME CONCRETE MACHINERY COMPANY, OF PLAINFIELD, NEW JERSEY, A CORPORA- TION OF NEW JERSEY.

ELEVATING APPARATUS FOR BUILDING MATERIALS, ETC.

Application filed January 27, 1928. Serial No. 249,808.

\ progresses.

in such constructum work, when this type of distributing plant is employed, it is desirable and frequently necessary to elevate various kinds of building materials which. cannot be handled by the conm1only used concrete bucket or hoist.

lvliore particularly, the present improvements have, as their primary object, among others, the provision of means comprising a material hoist or platform, mounted for 11lovement on the tower, without interfering with the normal operation of the distributing plant. Such material hoist being designed to elevate barrows with or without contents, building materials or other things to the point of the work desired.

In the accompanying drawings, one form 0 I? the improvements is illustrated, in which F 1 a side elevation of a (listributing plant embodying the improvements;

F 2 is a front View thereof, with hopper and boom removed.

In the construction illustrated, uprights 9, 2 are preferably in the form of channel beams and are secured in position to form the lower .1. by suitable diagonal braces or other .n'ieans. The usual guy ropes or cables- (not shown) are attached at intervals along the tower tor steadying and maintaining same erect. A track provided within the tower, as shown, onv which the frame or bail 4L and lmcket 5 pivoted therein, are adapted to travel. Any convenient means may be employed for elevating and lowering the ilirame and bucket, as :lor example, a cable attached to said frame, extending over a sheave at the top f the tower, down over sheave 6, to a suitable power means 6. The concrete hoist or bucket 5 is of the usual tip-over type, being normally erect tor receivmg a charge from a mixer through chute 7, near the ground level or mixing point, whence it elevated within the tower to discharge its contents into hopper 8. Relno'vahle trip means or switches h are provided on the hopper, in the path at travel of rollers 10 on the nose o]? hoist 5, whereby said hoist, when elevated. so that roll ers 1t) ride in switches 9, will. dump its contents into the hopper 8, :for distrilmtion by gravity through chute 11, and other connecting chutes, to the point of placement. Hopper 8 is slidably or adjustably mounted on beams .2, ot' tower 1, in order to vary the speed of the materials in gravity distribution, to alter the position ol? the chutes with re spect to the work as it progresses, and for other reasons. Any convenient means, such as sheaves and cables running to the power means, may be employed. for adjusting the position of the hopper 8.

The distributing chute 11 or other chutes, are braced or supported, as is common, by boom. 12, pivotal ly mounted. on boom bracket or support 13, which latter is adjustably mounted on beams 2 0'1? tower l, for sliding thereon, to be secured in. any desired po sition. The boom support 13, formed to withstaml shock and strains, preferably projects from the side plane of the tower somewhat in. the form. of a pyramid, altho other constructions are obvious for the intended pin-pose. Conveniently mounted on said support are sheaves 14; and 15, one adjacent the center of the support and the other zul iacent the side edge thm'eot. Although said sheaves are shown in Fig. 2, on the right side ot the support, it is understood that they may be arranged in any desired manner known. Furthermore but one sheave, suitably mounted, may be employed. Although iiu lividual elevating means are illustrated lor the hopper 8 and support 123, these elements may be adj ustably mounted on an adj ustablc frame as disclosed. in copending application tiled June 18, 1926, Serial No. 1116,77 1.

An elevator or material. hoist 16, adapted to be elevated and lowered, is movably mounted on that side of the tower or must carrying support 13, by rollers thereon (not shownl which ride in beams 2 oi? the tower. Any suitable elevating means for the hoist 16, cooperating with si'lpport 1:, may be employed, the illustrated embodiment comprising a cable or rope 17, securedv at one end (18) to the hoist or platform 16, extending therefrom over sheaves 14 and 15 in the boom support, through sheave 19 mounted near the base of the tower, to a suitable winding drum or power means 6. The hoist 16 may be of any desired dimensions or configuration, although preferably angular in cross-section as illustrated. Obviously the mechanical ad vantage of the elevating means for the hoist 16 may be increased by other arrangements of the sheaves and cable without departing from the scope of the present in'iprovements.

Since the material hoist is raised and lowered by a cable or other means co-operating with the boom support, it is obvious that the clearance afforded for its travel is governed by the position of said support, which latter position is determined by the progress or level of the construction work. Due to the fact that the chute 11 is at a point considerably above the highest working point of the building, and the boom support is on a level or above said point, ample space exists be tween the ground and the support 13 in which the platform 16 may travel. Accordingly all levels of the construction work are accessible to the traveling hoist 16 which is adapted to handle materials without interfering with the normal operation of the distributing plant.

As the bucket 5 is traveling within the tower, the hoist 16 on the outside thereof, may also be functioning. It is apparent that both the hoists 5 and 16 may be operated at different speeds, alternately or otherwise operated.

By providing operative connections between the material hoist and the support 13, the present improvements facilitate assembly of the organization, eliminate separate supports on the tower for the hoist elevating mechanism and centralize the additional load of the hoist at the bracket supporting the boom. The advantages of these features will be fully appreciated when it is realized that the bracket 13, made of rugged and sturdy construction to withstand the weight and strains of the boom, need not, in general, be altered. The various elements of the organization are so proportioned and arranged about the tower, as to provide even distribution of the forces it is called upon to withstand.

VVhile the improvements herein set forth are preferably embodied with the material hoist cable co-operating with sheaves mounted on a boom support, as illustrated, it is apparent that said sheaves may be mounted on any other sliding frame movable on the tower. 7

Other advantages and modifications within the scope of the present improvements,

will be apparent to those skilled in the art.

\Vhat I claim is:

1. In apparatus of the character described, an upright tower, a boom support thereon, a. concrete hoist and a material hoist slidable on said tower, elevating means for said material hoist cooperating with said support.

2. The combination as set forth in claim 1, wherein said boom support is adjustable on said tower.

The combination as set forth in claim 1, wherein said concrete hoist is slidable within the tower.

l. The combination as set forth in claim 1, wherein said boom support is adjustable on said tower and said concrete hoist is slidable within the tower.

5. in an apparatus of the character described, an upright tower having mounted on the outside thereof an adjustable boom support, a hopper and a slidable material hoist, said hoist being beneath said support and sustained thereby and a concrete hoist slidable within the tower.

6. In an apparatus of the character described, an upright tower, a hopper, a material hoist, a boom and support therefor, and a concrete hoist, all adapted to be moved on said tower, aml operative connections between said support andv said material hoist, for moving the latter with respect to the former.

7. The apparatus as set forth in. claim 6, wherein said concrete hoist is positioned within said tower.

8. In an apparatus of the character described, an upright tower, an elevator bucket slidable within said tower, a hopper mounted on said tower and arranged to receive the contents of said bucket, adjustable boom support means mounted on said tower, a material hoist mounted on the same side of the tower as said support means and beneath same, and an elevating cable opmativcly connecting said material hoist and said support means.

9. In apparatus of the character described, an upright tower, a boom support thereon, a material hoist slidable on said tower and means'cooperating with said support for sliding said material hoist.

10. In apparatus of the character described, a tower, a material hoist slidable thereon, a boom adapted to support distributing members and a conunon means on said tower for sustaining said hoist and boom.

Vitness my hand this 25 day of January, 1928, at Dunellen, N. J.

JAMES E. BUSHNELL.

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