US1280660A - Hoisting mechanism. - Google Patents

Description

W. P. CANTWELL. HDISTING MECHANISM.

APPLICATION FILED NOV. 1. 1911.

, Patented Oct. 8,1918

2 SHEETS--SHEET ml nuns pp": ca. rnomum.wummnl. nL i.

P. 'CANTWELL, 0F LIMA, OHIO.

I-IOISTING MECHANISM.

c i 1 Specification of Letters Patent.

Patented Oct. 8, 1918.

application filed November 7, 1917. Serial No. 200,795.

To all whom) it may concern;

Be it known that I, WILLIAM P. CANT- WELL, a citizen of the United States, residing at Lima, in the county of Allen and State of Ohio, have invented certain new and useful Improvements in Hoisting 'Mechanism, of which the following is a specification.

My invention relates to hoisting appara tus for use in conveying material, in the construction of a house. or building, while not necessarily restricted to this use.

As is well knownfin the; construction of tall buildings, it isicustoma'ry to erect a tower, which must ordinarily extend above the top of the building ,This tower is gen erally formed of wood or lumber and is expensive to construct. fAfter the building is completed, the tower must be taken down or wrecked, which entails a further expense. It is found that "the materialof the tower is to a considerableext'ent destroyed or greatly injured by taking the samedown. In con nection with this form oftower, it is the common practice to operate a hoist or elevator, the same being moved by means'of an engine. i 1

My invention has for its object to provide a simple and strong supporting structure, adapted. to take the place of the ordinary tower, the supporting structure being formed in sections which may-be readily assembled and separated, without liabilityof injury to such arts, j

A urthe'r object of the invention is to provide means whereby abucket or buckets, con taining the'materialfto be elevated, may be raised to a desired height, in proximity to a latform or the like, without liability of inury to the platform and shifted laterally to discharge into a chute or the like, arranged near or atthe platform.- I a A furtherobjeot of the invention is to provide a supporting structure,- so constructed that a platform or'other support may be conveniently connected therewith, and arranged at desired heights.

Other objects and'advantagesof the invention will be apparent during the course of the following description.

In-the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of apparatus embodying my invention,

Fig. 2 is an edge elevation of the same,

Fig.3 is a horizontal sectional view taken on'lin'e 3 -8 of Fig. 1,

. Fig. 4 is an enlarged fragmentary side elevation of the upper portion of the apparatus, K

Fig. 5 is an edge elevation of the same,

Fig. 6 is a plan view of the swinging beam,

Fig. 7 is a side elevation of a power operated drum to operate the hoisting buckets,

Fig. 8 is a similar view of a brake con trolled drum for controlling the swinging movement of the pivoted beam, and,

Fig. 9 is a horizontal sectional view taken on line 9-9 of Fig. 1.

In the drawings, wherein for the purpose of illustration isshown a preferred embodiment of my invention, the numeral 10 designates the supporting structure, as a whole, which may be formed in a plurality of sec tions 11. Each section 11 comprises a pair of flat bars 12, preferably formed of steel or iron, and provided with outwardly extending reinforcing ribs or flanges 13. Between the flanges 13, the bars '12 are provided with pairs of vertically spaced openings 14:. The

ars 12 in each section 11 are connected between their' ends by a transverse bolt 15, passing through a pair of the openings 14, and a spacing element or sleeve 16, as clearly shown in Fig. 9.

The upper section 11 is arranged upon the lower section 11, in end to end relation, and is securely bound thereto, by means of angleiron straps 17, attached to the flanges and the bars 12 by means of bolts'18 or the like.

The lower ends of thelower section 11 is provided with a base 19, rigidly secured to the lower ends of the bars 12, and adapted to be employed in anchoring or securing the lowermost section 11' to a suitable foundation.

The numeral 20 designates guy-wires, at-

tached to the upper portion of the upper section 11, as shown at 21, and to the ground, at suitable distance from the base 19. It is ob vious that any suitable number of these guywires may be cn'iployed, and there may be guy-wires used in connection with each section 11, if found advantageous.

The numeral 22 designates a swinging beam which, as shown in Fig. 6, is provided between its ends with aperturcd trunnions or spacing elements 23, for the reception of a pivot element or bolt 24-, inserted in a transverse pair of openings ll, of the upper sections 51L Itv is to be understood that the swinging beam 22 is vertically adjustable and for this purpose the 'bolt 24 may be insert-ed in any selected .pair of transverse openings 14;, in either section ll, depending upon the height that it is desired to arrange the same.

Connected with the opposite ends of the beam 22 is a cable 25, extending downwardly to pass about grooved pulleys 26-, which are suitably pivoted nearan d spaced from the foundation 19. The cable 25 is then passed about suitably pivoted horizontal grooved pulleys 27- and extends beyond these-me to be vvound upon a single drum 28, :Eor a number of turns to 'prevent'slipping thereon. i The rotation of tliis drum is controlled by means or a brake 29, of any well known ranged or preferred construction.

Connected Withtheswinging beam 22 inwardly of and near the ends thereof, are depending brackets 29, within which are pivoted grooved pulleys 30, having a cable 31 passed thereover. .The free ends of this cable are connected with buckets 32 or other load ,liolding apparatus. The cable 31 is extended. inwardly beyond the grooved pulleys 30 and ,portions 33 of the cable are passed about grooved pulleys 34, shown more cleanly inFig'; -5. Tl1ese grooved pulleys are rotatable upon a bolt .35, passed through a. air oftlleopenings T14. Theportions 33 o the ,pulle then extend downwardlyin avertical irec'tion between the bars 12 and are passed under vertical grooved pulleys 36,. ivoted upon a transverse shaft-37 .suitab 37 connected with the lower ends of the lowermost bars l2. The portions 33 of the cable are then extended forwardly and are wound about a power driven drum 37 for a number of turns to preventslipping. This drum may be driven by anvor iinary steam engine or the like and is equipped with the usual brake inec'ha .nisrn .38,.;for stonning the drum.

Disposed near the uppermost section 11 of the support, at a desired vertical point, and preferably surrounding three sides thereof, is a railed platform '39, which has its longitudinal portion a-m'an ed .u-pon and supported by a horizontal .ro d 40, passing through a pair of the-openings 14. Pivot/ed to the transverse portions 41 of the .pla'tform as shown at 42, are anfular'l .ar-

liars 43, the lower ends 0 win are overlapped, a ')ertured, and arranged be tween the bars 12, for the reception of a bolt 4.4, passed through two of the openings 14. It is obvious that the platform will be socurely held to the support section 1.1 and that as the rod ll) and the bolt 4% can be readily removed li'ron'i the openings 14, this platform may be vertically adjusted, and secured to the support section at any desired vertical position.

The numeral 45 designates a. pair of hoppers, for the reception of concrete or the like, which are arranged near and above the platform 39, and secured to the bars 12, by any suitable means. Tl'iese hoppers arc connected with pipes 46, discharging into a. common pipe or flue 47, which may be employed to convey or conduct the concrete or like material to any portion of the building under construction as is well known.

The operation of the ap 'iaratus is as follows:

With the parts of the apparatus arranged as shown in Fig. l, the upper bucket is loaded and is now ready to be dumped into the corresponding hopper 45. This being the case, the drum 2'8is allowed to slowly turn or revolve, so that the swinging beam 22 may assume an inclined position, with its ends to the right-arranged lowermost. This movement will cause the bucket 32 to the right to travel inwardly toward the hopper 45 to the right, whereby its contents may be conveniently emptied into this hopper. The drum 28 is now held ngainst turning movement by the brake inechanisn'i. and the beam 22 is t-cn'iporarijly locked in the inclined position. When the upper bucket 32 is emptied and the lower bucket 32 is filled or being filled, upon the drum being "slightly released, for gradual turn'ing movement, the lower bucket will restore the beam 22 to the normal horizontal positiom at which time the drum is again locked against turning; movement thereby retaining the beam '22 in the horizontal position. The cable 31 is now moved in an opposite direction to elevate ,the bucket 32 to the left and lower the bucket-32 to the right, the bucket at the left moving outwardly of the platform 39 and not injuring the same. When the bucket to the left is in'th'e upper position, the beam 22 is then swung in an opposite direction, to bring this bucket in proximity "to its "hopper 45 so that the contents thereof may be discharged into this hopper. The gfurther operation of the-apparatus is believed to be obvious and will therefore not be stated.

Itis to be understood that the form of m invention herewith shown and described is to be taken as a preferred example of the SH m and that va us 1Ifl112 i1 hap si a r nge n o Pa may er sort'ed to without departing from the spirit In apparatus of the e scribed, the yeoriibinatipniwith a? pec d pa 'r vf dpem gs,

'' I adapted idrerrangemenb tween bar s;

ta y.. n e e b en its ends w ith th vsiz pporting' structure 1d] adapted to hdrmally .assumean eppi'oxietely hQI'iZOfltiiPPOSit-ldll "a. cable connect with the ,endpbrtions .of the beam, to nor- 4 beam" inflthe' app ro'ximately 'ngfe'nd {to releasethe samej e ends may; alternately as;-

"qpositions'y a: drum receiving verse beam adaptedfdr the beams ;v 'a I pivot element comiected the been! agd. ad;

gwinging movement'ief the beam; m','g".devicees, connected of thebeamn Po t o scribed; the combinatio with structure; comprisingypw ii p l angementbet ,th iceble thereon 'to' centrol its moveinentif b T'device'sf connectedljwith the on? of the beam a ndedaptswmg said end "portions tore oembinatiomwi th a supportm y,

, mum; of a beam pivqtallyf connecte structure, a cable jean he cable thereen to neutral?- I ul leys connected: with the:v f

Images