US831248A - Elevator-cage. - Google Patents

Description

No. 831,248. PATENTED SEPT. 18, 1906. G. F. STEEDMAN.

ELEVATOR GAGE.

APPLIOATION FILED MAR. 12, 1906.

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PATENTED SEPT. 18, 1906.

G. F. STEEDMAN ELEVATOR GAGE.

APPLICATION FILED MAR.12, 1906.

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UNITED STATES PATENT OFFICE.

ELEVATOR-CAGE.

Specification of Letters Patent.

Patented Sept. 18, 1906.

Application filed March 12, 1906. Serial No. 305.652.

To all whom, it may concern.-

Be it known that I, GEORGE F. STEEDMAN, a citizen of the United States, residing at St. Louis, Missouri, have invented a certain new and useful Improvement in Elevator-Cages, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a front elevation of a portion of a knockdown elevator-cage embodying the features of my invention. Fig. 2 is a side elevation of the cage shown in Fig. 1. Fig. 3 is a plan view of Fig. 1. Fig. 4 is a sectional view on the line 4 4 of Fig. 1. Fig. 5 is a view, partly in section, taken on the line 5 5 of Fig. 2; and Fig. 6 is a sectional view on the line 6 6 of Fig. 4.

This invention relates to elevators, and particularly to the cages of elevators. 4

The main object of my invention is to pro- 1 vide a knockdown elevator-cagenamely, one that can be built complete at the factory and shipped in disassembled or knockdown form to the place where the elevator is to be installed, thereby obviating the necessity of employing a skilled mechanic to set up the elevator-cage and insuring a low freight classification in shipment.

Another object of my invention is to provide an elevator-cage that is very rigid and comprising few parts and which can be easily converted from a nonsafety-device cage to a safety-device cage. Thesafety device is also of novel form, as well as other features which will be hereinafter pointed out.

Prior to my invention it has been the gen eral practice to either ship the cage assembled from the factory to the place where the elevator was installed or else ship the parts of the cage and send an experienced elevatorman to put the cage together. If the cage is shipped assembled, the freight-rate on the same is exceedingly high on account of the height and bulkiness of the cage, and if all of the parts are shipped disassembled and an experienced elevator-man is sent to put the parts together the cost of his services enhances greatly the cost of manufacture of the elevator. My improved knockdown elevator-cage comprises very few parts namely, a platform part, which is built at the factory and shipped complete, and an upper part,

which is built at the factory and shipped complete, the upper part lying fiat upon the platform part, so that the cage occupies very little space, and accordingly can be shipped at a low freight classification. When the cage arrives at the place where the elevator is to be installed, the upper part can be attached to the platform part by simply driving a few rivets, so that it is unnecessary to employ a skilled mechanic to set up the cage.

Referring to the drawings, which represent the preferred form of my invention, 1 designates the floor of the platform, which preferably consists of wood and is supported by horizontal members 2, extending the full width of the platform at the front and back, and side horizontal members 3, extending the full length of the platform. These horizontal members preferably consist of chanl IlelS which are secured together in the form of a rectangle, and thus a very rigid construction is produced.

I have shown only one-half of the cage in the drawings; but it will of course be understood that the other half of the cage is identical with that shown. Secured to each of the side horizontal members 3 by rivets 4 is a casting which is of novel construction and forms one of the important features of my cage. Said casting consists of ears 5, that embrace the guide 6 on the elevatorframe, on which the cage travels, an upwardly-proj ecting portion 7, that is secured to a vertical member comprising a portion of the upper part of the cage, bearings 9, which receive the rock-shafts 10, comprising part of the safety devices, and surface 11, which cooperates with buffers 12 on the elevator-frame. The upper part of the cage consists of two horizontal members 13, preferably channels, which are secured by rivets 14 to castings having cars 15, which embrace the guide of the elevatorframe, said castings extending between said horizontal members, as shown in dotted lines in Fig. 1. On the upper portion of each of said castings is a boss 16, that receives a cylindrical buffer 17, which cooperates with a surface on the elevator-frame,

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in Fig. 2, the lower portion of said vertical member being secured to the upwardly-projecting portion. 7 of the casting of the platform part by rivets 22, (shown in dotted lines in Fig. 2,) which rivets 22 are adapted to be driven at the place where the elevator is setup.

The platform part of the cage, comprising the wooden floor, horizontal members 2, and side members 3, with the castings connected thereto, is assembled at the factory, and the upper part of the cage, comprising the vertical members 20, horizontal members 13, and castings connecting them together, is assembled at the factory. These two parts are placed one on top of the other for shipment and are connected together to form the complete cage by simply driving the rivets 22 as previously described. To strengthen the cage, diagonal braces or cross-rods 23 and 24 are carried by the castings of the upper part of the cage and are adapted to be secured to the platform part when the cage is set up, the upper castings being provided with openings through which the braces 24 extend and with ears or lugs 25, through which the braces 23 extend, and the lower castings being provided with cars 25 to receive the braces 24. Pref erably, safety devices are provided at the bottom of the cage, as well as at the top of the so that in case the cage is provided with eagle a eavy load and the hoisting apparatus should break said safety devices would become operative and prevent the platform part of the cage from being torn away from the upper part of the cage, this being liable to occur inv case the cage were provided with safety devices only at the top. The safety devices which I have herein shown consist of pairs of dogs 26 and 27 at the top and bottom of the cage, respectively, said dogs being rigidly connected to the rock- shafts 19 and 10. The rock-shafts 19 are provided with arms 28, as shown in Fig. 4, which are connected by links 29 to a cross-bar 30, carried by a slide 31, which is connected to the rope 32 of the hoisting apparatus. A spring 33 (shown in dotted lines in Fig. 1) is connected to the horizontal members of the upper part of the cage and extends through an opening 34 in the slide 31, so that said spring is normally under compression. In case the rope of the hoisting apparatus should break, however, said spring being relieved will force the slide and cross-bar downwardly, thereby rocking the shafts 19 to cause the pair of dogs 26 to engage the guide 6 of the elevator-frame. The dogs 26 are connected tothe dogs 27 at the bottom of the cage by means of links 36,

so that said dogs will be actuated simul taneously with the upper dogs. If the cage is not provided with the safety devices when it is first installed, it is a very simple matter to add them at any time without the aid of a skilled mechanic, as the castings are provided with the bearings into which the rock-shafts can be inserted, the safety-device parts being shipped from the factory to the owner of the elevator. It is obvious that in place of the rope 32 a piston-rod of a direct-acting hoist can be substituted therefor. 1

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is

1. A knockdown elevator-ca e comprising an upper part consisting 0 horizontal members, two vertical members and castings permanently connecting said members together, said castings being constructed to receive said vertical members and being arranged between the horizontal members, ears on said castings for embracing the guides on the elevator-frame, and a platform part re movably connected to the vertical members of the upper part substantially as described.

2. A knockdown elevator-ca e comprising an upper part consisting 0 horizontal members and two vertical members permanently connected together and a platform part consisting of a framework carrying a floor, and castings secured to said framework and provided with portions which are adapted to be removably connected to the vertical member of the upper part, said castings having buffing-surfacesand ears which embrace the guides on the frame of the elevator substantially as described.

3. A knockdown cage consisting of an upper horizontal member to which the hoisting device is attached, vertical members, castings serving to connect the horizontal member to the vertical members and being constructed to receive said members, guide-ears on said castings, a lower platform part adapted to be connected to said vertical members comprising castings having guide-ears, the upper and lower castin s having bearin s adapted to receive rock-s afts; substantial y as described.

4. A knockdown cage consisting of an upper horizontal member to which the hoisting mechanism is attached, vertical members, a lower platform part comprising a frame and adapted to be connected to the vertical members, upper castin s having guide-ears and bearings for rock-s afts, sa1d castings bein adapted to receive said upper horizonta member and said vertical members, and lower castings adapted to receive the frame of said platform part and said vertical members, said' castings having guide-ears and bearings for rock-shafts, substantially as described.

5. A knockdown cage consisting of an upper horizontal member to which the hoisting mechanism is attached, a lower platform part, vertical members and diagonal members for connecting the upper member to said platform part, upper castin s adapted to receive said horizontal, vertica and diagonal mem- ITO bers provided with guide-ears and bearings In testimony whereof I hereunto aflix my for rock-shafts, and lower castings having signature, in the presence of two Witnesses, guide-ears and bearings for rock-shafts, said this 5th day of March, 1906.

lower castings being constructed to receive GEORGE F. STEEDMAN. 5 the platform part, the vertical members and Witnesses:

the diagonal members; substantially as de- WALTER C. HECKER,

scribed. HARRY A. HIPER.

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