US1167595A - Concrete-building apparatus. - Google Patents

Description

H. RElTlNGER.

CONCRETE BUILDING APPARATUS.

APPLICATION FILED lUNE 18. 1915.

Patented Jan. 11, 1916.

3 SHEETS-SHEET 1- A PLANOUR'KFHCOUWASHINGTON D c H. REITINGER.

CONCRETE BUILDING APPARATUS.

APPLICATION FILED JUNE 18. 1915.

1 16x595, Patented Jan. 11, 1916.

3 SHEETS-SHEET 2.

H. REITINGER.

CONCRETE BUILDING APPARATUS.

APPLICATION FILED JUNE18, 1915.

1,167,595. Patented Jan. 11, 1916.

3 SHEETS-SHEET 3.

COLUMBIA PLANOGRAPH C0.. WASHINGTON, I), c

HENRY REITINGEE, OF CHICAGO, ILLINOIS.

CONCRETE-BUILDING APPARATUS.

memes.

Application filed June 18, 1915.

To all whom it may concern:

Be it known that I, I-IEXRY REITINGER, a subject of the Emperor of Austria-Hungary, residing at 2340 Clifton avenue, in the city of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Concrete-Building Apparatus, of which the following is a specification.

My invention relates to improvements in concrete building apparatus and more particularly to apparatus of this class which is used to erect smoke stacks and similar structures.

The principal objects of my invention are to increase the rapidity of the erection of hollow structures of concrete, to lessen the dangers to the workmen incident thereto, to make provision for adjustment to enable the structure to be tapered, to build the structure by superposing section upon section, to perform all building operations from the interior of the apparatus, and to provide a strong, rigid and eflieient support for the exterior and interior of the structure while the material is setting. These and other objects I accomplish as hereinafter described and as particularly pointed out in the appended claims, reference being had to the accompanying drawings in which a preferred adaptation or embodiment of my invention is shown.

In the drawings: Figure 1, is a top plan view of my improved apparatus. Fig. 2, represents a side elevation of the apparatus, a portion also being broken away on a ragged line which extends in a general vertical direction and cut out on a section taken vertically and longitudinally to expose the interior construction. Fig. 3, is a top plan view of the inner shell of the apparatus. Fig. 4, is a side elevation of the inner shell of the apparatus. Fig. 5, is a detached top plan view of the centering ring, also showing a horizontal section through the interior support and a plan of the radial adjustment bars. Fig. 6, is a detached enlarged side elevation of one of the segmental plates of the outer shell. Fig. 7, is a detached side elevation of two sections of the centering ring. Fig. 8, is a fragmentary enlarged top plan view of the outer shell and its reinforcing ring. Fig. 9,.is an enlarged section on line X-X Fig. 11, to illustrate the door construction inthe inner shell. Fig. 10, is an Specification of Letters Patent.

'- sectional ring shown in Fig.

Patented Jan. 11,1916. Serial No. 34,792.

enlarged fragmentary sectional view taken on a vertical longitudinal line through an upper portion of the apparatus to illustrate the manner of adjusting the shells relatively to each other. Fig. 11, is a detached enlarged side elevation of one of the segmental plates of the inner shell. Fig. 12, is an enlarged detached detail view of the hinged sectional ring for reinforcing and stiffening the inner shell. Fig. 18, is an enlarged detached perspective view of one of the adjusting clamps. Fig. 14, is a de tachecl enlarged end elevation of the hinged In referring to the adaptation or embodiment of my invention shown in the accompanying drawings in detail, like numerals designate corresponding parts.

My improved apparatus for erecting concrete smoke stacks or similar structures in brief comprises inner and outer shells which are separated sufliciently to provide an annular space in which the concrete is poured and permitted to harden to form a section of the concrete structure.

I prefer to construct both the inner and outer shells of a series of separate segmental plates and to suitably secure these segmental plates together in annular form.

The outer shell as shown in the drawings consists of a series of segmental plates 1, each of which have their side edges eX- tending at a slight diverging angle from the top to the bottom of the plate as shown in Fig. 5, so that the shell gradually tapers or lessens in circumference from the bot tcm to the top thereof substantially as illustrated in Fig. 2. The segmental plates 1, are detachably secured to each other with their side edges in abutting position by fastening strips 2, which are lapped over the seams between the plates and fastened upon the exterior thereof by bolts. screws or other suitable devices 3. These strips preferably have their side margins bent outwardly to form radial stiffening and strengthening flanges 2. To additionally secure and stiffen the upper portions of the segmental plates, a top ring is clamped around the said plates as shown in Fig. 8. I prefer to construct this top ring in a plurality of sections each of which has a curved intermediate bcdy 4, and inwardly extending end portions 5, and to adjustably connect said end portions by screw bars 6. Each screw bar 6, is provided with a hexagonal or other suitably shaped medial part 7, upon which a turning tool can be fitted for the purpose of rotating the screw bar and thus adjusting the top ring in circumference.

It may be desirable to reinforce and stiffen the lower and intermediate portions of the outer shell by encircling rings constructed similar to the top ring heretofore described.

The inner shell is constructed also in a series of segmental plates 8, which are tapered to correspond to the taper of the segmental plates of the outer shell and are fastened together by strips 9, which are lapped over the interior of the seams between the plates 8, and secured thereto by bolts 10, or other fasteners. The strips 9 have their marginal sides bent inwardly to form inner stiffening flanges 9, similar to the flanges 2, previously described. The plates 8, of the inner ring are also reinforced and stiffened by rings which I prefer to make in a series of hinged or pivotally connected segments 11, which are curved as shown in Fig. 12, to correspond to the annular form of the ring. To provide means for circumferentially expanding or contracting these rings curved strips 12, of metal are extended between and adjustably fastened to the end segments 11 by bolts 13. In this connection it should be noted that the end segments 11, of the rings are not hinged or pivoted together and are separated from each other as shown in Fig. 12. Two of these rings are preferably employed, one being located near he top and the other near the bottom of the inner shell, and both being supported in angular brackets 14:, fastened to the inner surface of the inner shell, see Fig. 2.

As the shells are sometimes constructed too long to permit the space between them to be filled with concrete poured in from the top, without danger of bulging the plates of the outer shell, I prefer to provide the segmental plates of the inner shell or one or more of said plates with suitable intermediate openings through which the concrete may be poured. These openings are normally closed by doors 15, constructed substantially as shown in Figs. 9 and 11, which are fitted in said openings flush with the exterior surface of the segmental plates composing the inner shell, see Fig. 9. The doors are provided with offset end portions 16, which lap over the interior of the plates and are securely fastened in place by bars 17, which extend across the inner face of the doors and have their ends fitted in brackets or hooks 18, attached to the plates.

To enable the walls of the stack to be constructed of substantially uniform thickness throughout it is necessary to center the inner and outer shells with each other and to maintain them in their centered position while the sections of the stack are being constructed. For this purpose I prefer to utilize the centering ring shown in Figs. 1, 2, 5, 7 and 10, which is smaller in circumference than the inner shell and is connected to both the inner and outer shell by a series of i are fitted to detachably fasten the segments together in circular form.

Referring to Fig. 7, the segments are provided with substantially J-shaped'slots 22, for the reception of the inner portions of adjustment bars 23. 23, are screw threaded and are provided with two oppositely disposed butterfly nuts 2&, near their inner ends which engage against opposite sides of the ring segments when the adjustment bars are fitted in the slots 22, as shown in Figs. 2 and 10. Each adjustment bar 23, is secured at an intermediate point to the top of the inner shell by a clamp which is constructed substantially as shown in Fig. 13, and has a body 25, provided with an opening 26, through which the adjustment bar is fitted, a top set screw 27, for locking the adjustment bar in said opening and a bifurcated lower portion 28, which straddles the marginal top portion of the inner shell substantially as shown in Fig. The adjustment bars are also secured at or near their outer ends to the outer shell by means of brackets 29. which are continuations of the strips extending beyond the top of said shell, said brackets being provided with openings through which the adjustment bars are fitted and oppositely disposed nuts 30, are arranged on the bars between which the brackets 29, are clamped.

The centering ring is mounted in encircling position around a suitable support or scafiold 31, arranged within the inner shell which also, serves as a support for the workmen engaged in building the concrete stack. The scaffold 31, is preferably constructed of wood and is of a temporarycharacter, it being removed after the stack is built.

In constructing a smoke stack or other structure with my improved apparatus, the inner and outer shells are built up of segmental plates to the proper size and are centered relatively to each other by the centering means previously described, the scafiold is built within the inner shell, the lower portion of the annular space between the shells is now filled with concrete poured through the openings in the plates of the inner shell, the upper portion of said annular space is filled with concrete poured over the top edge of the inner. shell and the concrete is per mitted to set and harden. After is has sufficiently hardened, the inner and outer shells are loosened and moved up ard and are thus contracted in circumference to rest The adjustment bars I upon the first section. The scaffold is built up higher Within the shells and the second section of concrete is poured. These operations are repeated until the stack is built to the required height, after which the apparatus and the interior scafl old are removed.

The chief advantages of this improved apparatus are that the apparatus is quickly set up or taken down, that all the work of pouring is performed from the interior, and that a perfectly straight vertical stack can be erected.

While the shells shown in the drawings are of annular form, it should be understood that my improved apparatus is equally adapted for building stacks or other structures of square or other shapes in cross section, the only change required being in the form of the shell.

While I have illustrated and described a preferred form of construction for carrying my invention into effect, this is capable of a Wide range of variation, alteration, modification and change without departing from the spirit of my invention, I therefore do not wish to be limited to the construction herein shown and described, but desire to avail myself of all such variations, alterations, modifications and changes as fairly fall within the scope of the appended claims or may be construed to be within the scope thereof by involving the doctrine of equivalents.

lVhat I claim as my invention and desire to secure by Letters Patent is:

1. In an apparatus of the class described, an inner shell, an outer shell surrounding said inner shell and separated therefrom to leave an intervening space in which concrete may be poured, and means for centering said shells relatively to each other, comprising a centering ring, radial adjustment bars pro jecting from said centering ring, and projecting elements on the inner and outer shells through which the adjustment bars fit.

2. In an inner shell, an outer shell surrounding said inner shell and separated therefrom to leave an intervening space in which concrete may be poured, a support within the inner shell, a centering ring of smaller diameter than the inner shell attached to and arranged above said support, adjustment bars adjustably connected at their inner ends to the centering ring, a bifurcated clamp straddling the top edge of the inner shell and having openings through which the adjustment bars pass and vertical extensions on the outer an apparatus of the class described,

Zhell through which the adjustment bars are 'tted.

3. In an apparatus of the class described, an inner shell, an outer shell, a centering ring of smaller circumference than the inner shell and having a plurality of J-shaped slots, adjustment bars adjustably fitted in the J-shaped slots and projecting radially outward, and vertically projecting elements on the inner and outer shells for respectively and separately connecting the adjustment bars thereto.

4. In an apparatus of the class described, an outer shell comprising a plurality of seg mental plates, means for detachably securing said sections together, and a circumferentially adjustable reinforcing ring encircling said plates; said ring being composed of sections having curved bodies and radial inwardly extending end portions, and screw bars extending between and adjustably connecting the end portions of said sections.

5. In an apparatus of the class described, an inner shell comprising a plurality of se mental plates, brackets adapted to the inner surface of some of said plates, and reinforcing rings supported in said brackets, said rings being composed of hinged together sections.

6. In an apparatus of the class described, an inner shell comprising a plurality of segmental plates, brackets adapted to the inner surface of some of said plates, and reinforcing rings supported in said brackets, said rings being composed of a series of hinged together sections and an adjusting piece extending between and adjustably fastened to the end sections.

7. In an apparatus of the class described, an inner shell, an outer shell surrounding said inner shell and separated therefrom to leave an intervening space in which concrete may be poured, a support within the inner shell, a centering ring attached to said support, and having a plurality of slots, radial adjustment bars adjustably fitted in the slots, clamps for adjustably securing said bars to the inner shell, and brackets for adjustably securing said bars to the outer shell.

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

HENRY REITIN GER.

Witnesses:

HENRY HELD, F. B. RAMSEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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