US1210748A - Hoisting mechanism. - Google Patents

Description

'1. S. WYLIE. HOISTING MCHANISIVIlv APPLICATION min MAR. I4. 1916.

Patentedl Jan. 2, 1917. 2 SHEETS-SHEET 2.

f which the material is noisfriNe msciiaii'ism.

Application ed latch 14,

may concern: y

that I, JOSEPH S. WYLm, a citizen of the United States, residing at Oklahoma city, in the county of Oklahoma and State of Oklahoma, have invented certain new and useful Improvements in Hoisting Mechanisms, of which the following is al specification.

This invention relates to hoisting apparatus and has for its object the simplification of the supporting structure. f

In apparatus heretofore provided, so far as I am aware, the supporting tower or frame Work was of expensive construction which required considerable time to build. It is the object of my invention to provide a `support consisting of a single column or mast which will carry the iguidesfor the hoisting bucket or cage and will also support the hopper or ,lattorm into or onto discharged and the from the said hopper to the the guides being disposed at To all whom it Be it known chute' leading point of use,

one side of the mast or column,

l the' said hopper;

The invention is illustrated in the accompanying drawings and resides in certain novel features which will be lhereinafter first fully described and then more particularly pointed out in the claims tollowingthe description. v

In the drawings: Figure 1 is an elevation of an apparatus for hoisting and distributing mixed concrete embodyingmy improvements; Fig. 2 is a detail perspective view o the hoisting bucket and the trarne in whic the same is mounted; Fig. 3 'is a detail pers ective view of the hopper and a portion of tlie chute for conveying the concrete from Fig. L1 is a horizontal sectional view showing a modification.

In carrying out my invention, I employ a supporting frame whichv consists of a mast constructed of corner posts 1 `connected nby braces 2 and struts 3, as illustrated in. the accompanying drawings. At the upper and lower ends of this mast, I provide laterally extended beams 4 and 5 and to the said beams I firmly secure the opposite ends of cables 6 which are stretched taut between the said beams so as to'provide vertical guides upon which the hoisting cage ymay travel.

Specieatioii of Letters Patent.

` nm'rnn 'STATES Parenti? orricii.

OKLAHOMA.

rammed Jan. a, 1917.

1916. Serial No. 84,129.

In ythe upper beam mounted a guide pulley 7 over which the hoisting cable 8 passes and asimilar guide pulley 9 is provided at the uper end of a similar p and thence the mast, the cable passing from the said pulley 9 down through the mast to ulley 10, at the lower end thereof,

tothe engin frame 11 is secured to therend of the cable 8 and is carried thereby. In the present instance,

illustrated shaped bar having members and having extending members.

cables or stout r'ods,

so to gu its vertical from swinging away of its operative relation to the hopper.

bucket 14 loops this frame is as constructed of an inverted U- grooves 12 in its side a rod 13 secured in and between the lower ends of saidl rthe guides 6, which may be steel fit within the grooves 12 ide the hoisting cage or frame in movement and prevent the same. from the mast or out The 13 by is mounted upon the rod '75 or eyes 15 which encircle the said rod loosely and thereby constitute a hinge connection with the same. clearly in Fig. 2, the

one side of As shown most bucket is extended to the vertical plane of the trame 11 80 so that it will beoverbalanced when loaded and upon operation of the tripping means,v

which I w matically sw mount upon one si( 'l`o hoi-tl the bucket ill presently describe, will auto ing upon the hinge rod 18 as a discharge its contents into the normally ischarging movement, I pivotally le ot the frame 11 a latch '1G which has one end turned down, as shown A at 17, to engage between of the bucket.

on the side lugs 18 of the latch The opposite end extends into the path of a trip 19, secure upon the hopper reaches the i'ree end o the said trip t' the 2() vand when the bucket upper limit of its movement, the

latch will impinge against so that the latch will be swung about its pivotal point and the downturned end thereof the lugs 18,' thereby releasing from between will be withdrawn the bucket so that it will be free to swing and will turn 100.

over and discharge The latch is er. ment with lugs and a its contents into the hopheld normally in engagethe lugs 18 by a spring 21 attached' to the latch between its pivot and the lso attached tothe adjacent side member of the clearly in Fig. 2.

The hopper 20 may be of any preferred form but should have an inclined bottom leading into the chute or spout 22 which is carried around the mast to lead into a conveyer or chute which may be constructed in any convenient manner so as to extend to the point where the concrete is to be used. The hopper QOmay be supported from the mast in anyconvenient manner and is provided on its side, adjacent the guide 6, with a shield or plate :'Mhponlwhich the bucket will ride in its downward movement so as to be returned to its initial position with the latch 16 in engagement with the lugs 18. The accompanying drawings show the hopper carried by a frame 40 having a sliding engagement with the mast and suspended on cables 41.

In Fig. 4 I have illustrated a. different embodiment of the invention, in which the mast is indicated by the numeral 25. To the side of the mast I secure an I-beam 26 and to the outer` side or flanged portion of the said Lbeam, I rigidly secure a guide plate ol rail 2T having its side edges projected beyond the edges of the I-beam. To one side of the hoisting cage or frame, indicated by the reference numeral 28, I secure a guide plate 29 having its edges doubled upon themselves so as to provide U-shaped flanges 30 adapted to fit around the edges of the cleat or plate 27 and thereby hold the cage in a true vertical plane during its movements.

The concrete is mixed in the usual manner and loaded into the bucket 14, after which the engine is operated to raise the bucket and the frame ll to the hopper 20. As the upper end of the bucket reaches the plane of the upper end ofthe hopper, the free end ot' the latch 16 will impinge against he under side of the trip 19 so that continued upward movement of the hoisting cage will cause the said latch to swing upon its pivot and be releasedlrom the lugs 18, as will be readily understood and as has been previously stated. The latch will be held in its approxin'iately vertical released position until the hoisting frame or cage descends below the plane of the trip. Aa soon as the latch is released, the weight ol' the load in the overbalanced bucket will cause the said bucket to swing over upon the hopper and discharge the concrete into the same, whence it will gravitate through the chutes to the point of use. After the load has been discharged, the bucket and the hoisting frame are permitted to descend and the downward movement of the cage will cause the bucket to ride over the edge of the hopper and be thereby swung back to its initial positien, the shield or plate 24 serving tx) pref frame l1, as shown most or bucket vent dipping of the bucket until the latch has cleared the trip 19 and been thereupon drawn into engagement with the lugs 18 by the springs 2l.

It will be readily noted that I have vided an eveeedingly simple, guiding the bucket in itsI vertica movements and have produced be built at a 'cost appreeiably Ifelow that of the appayitus'now generally employed.

It will'fbe notedft'iat the hoisting cable is no tilioused within a. complicated and costly tower practically surrounds or incloses the bucket and forbids access to the same in the event Ait hould for any reason become clogged 1in the course of its travel either upwardly r downwardly. The bucket is open and/accessible at all times so that the loading,r of t'h'e, mechanism is facilitated and an v cone're Which may tend to lodge upon the latchingA mechanism allparatus for reached and removed.

It will be noted that the hopper is mounted on a side of the mast intersectin the side at which the guides are dispo and that the hopper projects laterally from its point of support substantially parallel lwith the plane of the guides so that the-ho per and the bucket are both free or spaced rom the mast throughout their operative tions and are, consequently, access, in the event that repairs or other attention should be necessary. This arrangement also provides a very compact structure and facilitates the erection and disproan apparatus which can mantling of the apparatus. This apparatus is intended more particularly for use in handling concrete' during building operations and it is very desirable to have a. structure which will firmly support the hopper and the bucket but will be composed of the fewest possible parts so that the apparatus may be quickly and economically erected and also easily, quickly and ewnomically dismantled when the building operation is over. The space required to accommodate the apparatus is also minimized so that the mast and the parts mounted thereon may be accommodated in a corner or a space of small dimensions without in any way decreasing the efficiency of the apparatus or the quantity of material that may be suceefully handled therein.

While the invention is intended more particularly for application to apparatus for hoisting mixed concrete and is soillustrated, it will be understood, of course, that the improvements may be used in other elds.

Having thus described the invention, what is claimed as new is:v

In an apparatus for mast, a. lateral extension projecting from one side of the mast, parallel with the side-of the mast on'which spaced vertical guides carried by said ex- 1t is supported, a bucket slidably fitted to 10 tension and' extending the full hei 'ht of said guidesgand means for raising and lowthe mast in spaced relation thereto, ha. opper ering the uket no and from thehopper.

supported on a. Side of the mast mtersect- In testimony whereof I aix my signain'g the side from which the lateral exten. ture. A Sion projects, said hopper extendinglater; i u ally from the mast and past said guides 'JOSEPH S, WYLIE. [L 5.] l

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