US968030A - Material-elevator. - Google Patents

Description

H. GULL.

' MATERIAL ELEVATOR.

APPLICATION FILED 1I0V.11I 1908.

PatentedAug. 23, 1910.

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H. GULL.

MATERIAL ELEVATOR.

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Patented Aug. 23, 1910.

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MATERIAL ELEVATOR APPLICATION IILBD 10 7.11 1908.

Patented Aug. 23, 1910.

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UNITED STATES PATENT oraroE.

HENRY CULL, OF CHICAGO, ILLINOIS.

MATERIAL-ELEVATOR.

ll; all whom it may concern:

Be it known that I, HENRY CULL, a citi- Zen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Material- Elevators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to that class of material elevators adapted for use by builders in elevating materials of any kind during the construction of a building. Such elevators are extensively used by masons in eleyating the brick, mortar and stone to the workmen as the building progresses. Usually, it has been customary to omit one or two joists in the floor of each story and to extend the ways of the elevator upwardly therebetween, staying the same to the floor, and, of course, after the work of the masons is completed, disassembling the device and replacing the joists previously omitted. Usually, in such devices, but two vertical ways or guides are erected parallel to each other and the cages or platforms are directed outwardly therefrom and slide thereon in raising and lowering, and, inasmuch as but two ways are used, it has been deemed necessary to carry the elevator up between the joists as before described to secure lateral support.

The object of this invention is to provide an elevator having two movable platforms or cages supported near the ways adapted to be self-sustaining, thereby permitting the device to be erected conveniently outside the building instead of inside and enabling the construction to be carried to any desired height with but very slight lateral support, if any, from the building under construction.

It is also an object of the invention to afford an elevator of the class described having four corner posts constructed of duplicate interchangeable parts and adapted thereby to be extended to any desired length or height, each of said corner posts serving as one of the ways upon which one of the platforms slides.

It is also an object of the invention to afford an elevator whereby any desirable or convenient source of power may be util- Specification of Letters Patent.

Application filed November 11, 1908.

Patented Aug. 23, 1910.

Serial No. 462,111.

ized for elevating the material, or, if desired, a horse or other draft animal or animals may be employed in operating the cables.

The invention consists in the matters hereinafter described and more fully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a side elevation of a device embodying my invention. Fig. 2 is an end view thereof. Fig. 3 is a top plan view. Fig. 4 is an enlarged side elevation of the ratchet and detent and controlling lever for the hoisting drum. Fig. 5 is a view taken at right angles to that shown in Fig. 4'. Fig. 6 is an enlarged fragmentary detail face view of one of the ways or corner posts. Fig. 7 is a view taken at a right angle therewith. Fig. 8 is a section taken on line 8-8 of Fig. 7.

As shown in the drawings: said elevator is constructed in separable detachable units affording the frame thereof and comprising a bottom or base portion of plank, which, if desired, maybe arranged in two layers,

each layer being crossed at an angle with the other afiording a platform or bed A. Resting thereon at their lower ends, are uprights or posts, as shown four in number, and arranged one at each corner of the frame to be erected, each of said posts being constructed of plank or suitable dimensioned stuff, and, as shown, comprising sections B, two inches by eight inches in dimension, and convenientlya length approximating the story height of the building to be erected, as, for instance, twelve feet. The ends of the plank B, are cut to interfit as succeeding sections or lengths are added or as the structure increases in height. As shown, at the upper end of each of said sections is provided a tenon Z), adapted to fit into a mortise or seat I), at the lower end of the next succeeding section, and as shown, apertures are provided equal distances apart for the entire length of each section and near the center thereof, as shown in Fig. 6.

Rigidly bolted at intervals in its length along the outer edge and inner face of each of the sections B, is a section B, conveniently narrower thanthe sections 13, the difference in width being approximately the thickness of the sections 13, as shown in Fig. 8, and as shown, said post sections 13, are each provided at the upper end with an upwardly extending portion or tenon 6 at its inner edge adapted to fit into a seat 6 j in the corresponding lower end of the next section above.

Metallic plates 5 -7), are arranged at 'the corners longitudinally of the posts at the point where the sections join, and are bolted in place to partially cover the joint and to reinforce the same, sustaining the structure. The posts thus formed are rig-- idly secured together at their bottoms by sills C-C, affording a frame about the same, these, as shown, resting flat upon the base or platform A, and being bolted through the foot of each post, as shown in Figs. 1 and 2.

Arranged diagonally to connect the posts on all sides of the frame are braces. l)D, which are cut in length and bored at the ends to permit bolts to pass through the apertures therein to engage in the apertures provided therefor in the post sections 13-13, and near the tops of the posts is provided a frame "comprising planks or dimension stuff C ,-C corresponding with the sills C-C, and whichbe'ing thoroughly bolted to the upper ends of the posts in horizontal position, afford a platform upon which to support the hoisting frame.

Bolted on the inner face and inner edge of each of the post sections B, is an angle bar E, forming the guide or way on which the carriages or platforms move, these, as shown, being arranged at each end of the frame. Slidable in each pair of said ways is a carriage 'OI .lQ fltform F, F. Said platforms, as shown, are rigidly secured at their edge adjacent the ways appropriated thereto to a rigid back frame comprising longitudinal members f-f, at the top and the bottom, each provided with a suitable roller pulley f peripherally grooved to engage on the ways, and as shown, said members are connected vertically by bars f f*--f and as shown, the central of said bars f being connected with the hoisting beam f, which extends peripherally of the frame and is connected with a vertical bar or member the lower end of which is connected to the inner edge of the platform,

as shown in Figs. 1 and 3. Said platforms,

of course, may be braced in any suitable manner to afford the requisite strength and durability.

Supported on the top frame afforded by the beams fi -C is the hoisting frame, comprising, as shown, beams or joists G G, 'of a length to extend across said frame and above each of the hoisting cages or platforms. Said joists, as shown, are rigidly connected by means of a small bar or a short piece of timber g, bolted beneath the same at one end and at the opposite end or that over the hoisting drums by longer bar or piece of timber g, bolted between the same. Near the middle of the frame thus formed is provided a bar or beam g bolted between said oists parallel to the bar 9, and bolted to each of the frame bars gg and parallel with the joist G, is a shorter joist or frame member 9 Journaled on the joists G- G, above the platform F, is a shaft g, having a grooved pulley thereon in position to lead over the center of the hoisting beam f, for that platform or cage, and ournaled on the joists G-g/ above the hoisting beam f, on the frame or platform F, is a shaft g, onwhich is a pulley 9 over which the cable to the hoisting beam on the platform F, leads, and as shown, at the outer end of said hoisting frame is provided a shaft having a pulley g, thereon, over which the cable connected with the platform F, leads downwardly to one of the hoisting drums. In a similar manner a shaft g, is journaled on the outer end of the joist g and joist G, and is provided with a pulley 9 over which the cable from the platform F, leads to the hoisting drum. Said frame is rigidly but removably secured on the top frame by means of U bolts 9, which straddle said joists and the top frame members G on each side ofthe frame and rigidly engage the same in adjusted position, but permit quick release when it is desired to move upwardly by the insertion of additional post sections.

Supported on the platform A, at the bottom of the frame, are hoisting drums, as shown two in number, indicated by H H. These, as shown, are mounted upon suitable frames h7t, which may be connected, if desired, and are'rigidly bolted to the platform. The drum H, as shown, in Figs. f and 5, comprises a drum portion having rigidly connected therewith on its inner face a ratchet wheel 7L2, adapted to be engaged by either the pawl h or h dependent upon which of the platforms is rising. As shown, a cross bar or other connecting rod 71 is engaged on the arms 7a, positively connected with the respective detents, and a lever it", is pivotally engaged on the frame and engages the connecting bar or rod h, to permit said bar to be swung in either direction to bring the detent at one or the other end thereof into engagement with the teeth on said ratchet wheel, and to hold said drum from rotation.

As shown in Figs. 2 and 3, the cable X,

extends downwardly from the pulley 9 and led upwardly over the pulley 9 and pulley g, the end being fastened to the hoisting beam of the cage or platform F. It will thus be seen that the ends of a single line are fastened to the cages, and the bight of the line is passed around the respective drums and outwardly to a snatch block, said leads around said drums being properly directed to cause one cage to rise as the other descends.

Of course, in lieu of a snatch block, the winch of a hoisting engine or motor may be used for the bight of a line to actuate said cages. Conveniently, however, and frequently, draft animals are used for operating the device. For this purpose, a hook is engaged in one of the leads of line sufliciently near the frame to enable the operator to attend the machine and at the same time drive the horse, if desired. If the horse attached to the line X, beyond the hoisting drums pull on the line X, the platform F, will, of necessity, rise, though, as the big-ht of the line passes through the snatch block 72, (or around the drum of the hoisting engine if the same be used), one is slacked thereby and the rotation of the hoisting drum H, is reversed, causing the platform F, to descend.

Of course, braces are applied wherever convenient, and any desired number may be used, and it is quite immaterial as to the general arrangement of such braces as they may assume many different positions dependent upon the length of the braces and the requirements in each particular case. F or all ordinary uses, however, whether erected within or without a building under construction, said braces are arranged diagonally, as shown in Figs. 1 and 2, the bolt apertures at each end of each brace being the same distance apart as the diagonal distance from certain apertures in the frame posts. Thus, said braces are interchangeable and duplicate as are also the post sections of each kind, namely, the outer and the shoulder, and also the various frame members described. In consequence, it follows that in erecting the device or elevator of the class described any of the outer post sec tions may be engaged on any of the other of said sections in increasing the height, and as shown, the narrower sections 13', overlap the joint in the outer, in consequence, and owing to the metallic plates engaged at the joint, great strength and rigidity is assured.

Safety catches or dogs may be provided on the lower ties C, or on any of the ties in position to engage the empty cage or platform to support an elevated upper platform. For this purpose a stop or bracket is secured on the center upright of each cage on the outer side thereof and an unbalanced lever K, is hinged on the adjacent tie, its outer heavier end tending to swlng downl wardly to elevate the inner end into position to engage above the bracket 70, and hold the cage down. A line 70, extends from the outer end of the lever upwardly alongside. the frame to the top and permits the cage to be released from any floor.

Of course, various devices may be employed for platforms. It is quite immaterial if the platform construction be as described or not, excepting that conveniently the grooved pulleys which engage the ways of each platform are journaled at the back of each frame, thus permitting the front and both ends of each platform to be entirely unobstructed to receive the load.

Of course, I am aware that very many details of this construction may be varied. I therefore do not purpose limiting this application for patent otherwise than necessitated by the prior art.

I claim as my invention:

1. A material elevator embracing a frame, comprising four composite posts each comprising a flange member and a web member, each post consisting of a plurality of duplicate interchangeable sections,'each section having a tenon at one end and a corresponding seat at the other, metal plates reinforcing the joints between said members, diagonal braces cut to equal length having an aperture at each end, bolts securing said braces to said frame diagonally by extending therethrough and through the posts of the frame, a hoisting frame secured to the top of the frame, comprising a plurality of beams, one of which is inclined at an angle with the other and rigidly connected thereto and U bolts rigidly but detachably connecting the beams to the first named frame.

2. A material elevator embracing a frame, comprising four composite posts, each comprising separable flange and webmembers, each post consisting of a plurality of duplicate interchangeable sections, having a tenon .at one end and a corresponding seat at the other, and having apertures therethrough arranged equal distances apart, metal plates reinforcing the joints between said members, diagonal braces cut to equal length and apertured at equal distances apart, bolts securing said braces to said frame diagonally by extending through the braces and through the apertures in the posts, horizontal duplicate ties secured to the posts at the respective floor heights, hoist-ing cages, drums for actuating the same, a ratchet wheel rigidly connected with one drum and connected aawls on opposite sides of the ratchet wheel adapted to alternately engage the ratchet wneel to control the rotation of the drums.

3. A material elevator embracing a frame comprising four composite corner posts each comprising a flange and a web member separably secured together, each post comprising a plurality of duplicate interchangeable sections, having a tenon at one end and a corresponding seat at the other, metal plates reinforcing the joints between said members, diagonal braces cut to equal length and apertured at each end, bolts connecting said braces to said frame diagonally by extending therethrough and through the posts of the frame, guides on said posts, and elevator platform slidable thereon and projecting inwardly.

4. A device of the class described comprismg four corner posts each comprising two sets of duplicate interchangeable sections, bolts securing said sections together to overlap at the ends, metallic plates covering the joints formed between engaging members of the same kind, a removable top or hoisting frame, ways secured to said posts and two cages slidable on the ways supported on the posts of the machine, one adapted to move upwardly as the other moves downwardly.

5. A device of the class described comprising four corner posts each comprising LWO sets of duplicate interchangeable sec tions, of different widths, bolted together to overlap at the ends, metallic plates covering the joints formed between engaging mem bers of the same kind, ways on the inner side of said posts, a removable top or hoisting frame and two inwardly facing cages slidable on said ways one adapted to move upwardly as the other moves downwardly, and a single cable supporting and operating said cages.

6. A device of the class described comprising four corner posts each comprising two sets of duplicate interchangeable sections, a narrow flange and a wider web section, bolts connecting the same to overlap at the ends, metallic plates covering the joints formed between engaging members of the same kind, ways on said posts, a removable top or hoisting frame and two cages slidable on the ways open on the inner side and one adapted to move upwardly as the other moves down.- wardly, a single cable supporting and operating both cages and a safety pawl or lever acting to engage the empty cage and thereby support the load.

7. A device of the class described embracing a material elevator having four composite corner posts arranged in inwardly facing pairs, each post comprising two members, said members breaking joints, a reinforcing plate extending longitudinally of the members across the joints, an angle bar on the inner edge of the posts of each pair forming ways, a pair of inwardly projecting cages, grooved rollers pro ectlng laterally from each side of the back of the cages and engaging the ways and a cable for moving the cages oppositely.

8. A material elevator of the class described embracing four composite corner posts, ways on the inner side of said posts in inwardly facing pairs and consisting each of a metallic plate or bar, oppositely movable, inwardly facing cages, grooved rollers on the back thereof adapted to engage said ways, a cable for actuating the cages, a hoisting drum for the cable, a bracket secured to the lower end of each cage, an unbalanced lever adapted to engage the bracket when the cage is at its lower limit of movement and a cable secured to the lever and extending upwardly to the top of the elevator. 9. A frame for elevators comprising composite corner posts, each post apertured longitudinally and consisting of duplicate sections and each section formed of a plurality of members, each member breaking joints with the other member, diagonal interchangeable brace bars apertured at equal distances apart, a removable top frame and U bolts for removably securing'the same in position. 10. In a device of the class described sectional corner posts, each section comprising a plurality of members and the alined members of each post breaking joints with the other alined members of the same post, in-

terchangeable diagonal brace bars, inter changeable cross bars and metallic brace members extending longitudinally of the posts and overlapping the joints.

11. In a device of the class described sectional corner posts, each section comprising a plurality of members and the alined members of each post breaking joints with the other alined members of the same post, interchangeable diagonal brace bars, interchangeable cross bars, metallic brace members extending longitudinally of the posts and overlapping the joints, a removable top frame, pulleys journaled thereto,cages,a cable secured to the cages and trained around the pulleys, drums around which the cable passes and adjustable mechanism to lock the drum from movement in either direction.

12. A frame for elevators comprising sections each consisting of a plurality of members and the members of each section terminating at different planes at each end whereby the members at corresponding ends break joints, reinforcing means at each joint of each member of the sections, removable top frame, elevator cages, a drum, a cable secured to the cages and trained around the drum, a toothed wheel secured to the drum and simultaneously movable members adapted to independently engage the drum to lock the same from movement in each direction.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

HENRY CULL. \Vitn'esses:

K. E. IIANNAI-I, Dnwnnnon REIBSTEIN.

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