US2210553A - Apparatus for producing reinforced concrete structures - Google Patents

Apparatus for producing reinforced concrete structures Download PDF

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Publication number
US2210553A
US2210553A US133972A US13397237A US2210553A US 2210553 A US2210553 A US 2210553A US 133972 A US133972 A US 133972A US 13397237 A US13397237 A US 13397237A US 2210553 A US2210553 A US 2210553A
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Prior art keywords
rods
concrete
reinforced concrete
mold
concrete structures
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US133972A
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Joseph E Miller
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Joseph E Miller
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12Mounting of reinforcing inserts; Prestressing

Description

g- 6, 1940- J. E. MILLER 7 2.210553 APPARATUS FOR PRODUCING REINFORCED CONCRETE STRUCTURES Filed March 31. 1937 5 MNTOR' BY TTORNEY.
3 1 ill im m |wwi w n i l l HMHHHHHH .J mJn f. 7. H o 9 a 5 i I 1 I l i l I I l llll & lllllllllllllllll l1 OZ v -4 A n n .7 N T Patented Aug. 6,1940
UNITED STATES PATENT OFFICE APPARATUS FOR PRODUCING REINFORCED CONCRETE STRUCTURES This invention relates to improvements in apparatus for producing reinforced concrete structures, and an object of the invention is the manufacture of reinforced concretestructures 5 such as blocks, posts, pipingfor slabs and other forms which will have great power to resist opposing forces applied'thereto in any direction. Another object'of the invention is to provide a reinforced concrete structure in which the con- 10 crete aggregate ,is closely confined or compressed while green and until completely solidified by setting, and the reinforce simultaneously is held under high tension. 1
And a further object of the invention is to 15 provide a simple apparatus for concurrently holding a concrete mass and the reinforce therefor under opposing forces during solidification or setting of the concrete mass.
Other objects and advantages of the invention 90 will appear in the following description.
An illustrative embodiment of the invention is shown in the accompanying drawing, in which: Ffgfi is a top plan view of a structure embodying the invention; 7 25 Fig. 2 is an elevation projected from Fig.- 1,
portions thereof being broken away; and
Fig. 3 is an elevation showing a reinforced concrete form produced by the appliance shown in Figs. 1 and 2, and the method hereinafter de- 3 scribed.
The illustrative embodiment of the appliance with which the method is carried out preferably .consists of a form or mold constituted of a cylindrical wall, the ends of which are open. 35 Or, the wall may be polygonal or shaped as may be required to produce concrete objects of any particular design as may be required. For instance, in the illustration the form or mold l is shown as being cylindrical. Underlying the 40 bottom of the mold is disposed a base 2 upon which the mold is initially positioned and its lower end thereby closed, and reinforce rods 3 are positioned so as to extend through the base up through the form spaced from the interior 45 walls thereof in any suitable relative arrangement. Upon the lower ends of said reinforce rods are disposed washers 4 and nuts 5, said nuts having threaded relation with said rods.
After the form, base and reinforce rods have 50' thus been assembled, freshly mixed concrete 5 while plastic is invested in the mold and subsequently a ram-head I is inserted in the;top of the form which is provided with openings 8 to permit the upper ends of the rods 3 to extend 5'5 therethrough. Washers Sand nuts II are applied to the threaded upper ends of the rods 3 so that upon turning of the nuts downwardly on said rods the ram-head I is thereby forcibly moved downwardly into the mold toward the base and the green mass of concrete thereupon becomes l5 compressed within the walls of the mold between the base and ram-head, and also concurrently with the consequent compression of the plastic 'concrete mass in the mold, the reinforce rods are subjected to the strain of tension to an extent 10 corresponding inversely more or less with the. compression applied to the confined concrete mass.
As the concrete aggregate solidifies while under great pressure and the reinforce rods are under high tension, a bond is formed between the concrete and the reinforce rods so that when the concrete shall have set completely its state of compression and the tension of the rods is substantially sustained and consequently permanent compactness and density of the finished reinforced concrete product is assured.
To augment the pressure of the ram-head during tightening of the nuts III on the reinforce rods while the concrete mass is in a green state, a powerful jack may be applied downwardly upon the ram-head while the base is disposed upon a substantial foundation. The jack and foundation are not included in the illustrations. However, the application of force such as may read-- ilybe applied to the ram-head by means of a jack in a manner such as to cause greater compression of the concrete mass than that applied to the ram-head by tightening of the nuts ill on the rods 3 results in the elimination from the concrete aggregate substantially all entrained air, gas and fluids whereby is insured great density of the concrete body upon its completion.
After theconcrete form II has thoroughly set the mold is removed, as are also the nuts 5 and 40 10 thereby permitting removal of the base and ram-head I. If desired, the washers and nuts may then be re-applied to the projecting ends of the rods 3 so that pressure is exerted against the ends of the completed reinforced concrete body ll. Or, if desired, the projecting ends of the rods beyond the ends of the body may be sheared off flush wth the corresponding ends of the body.
The apparatus herein set forth as an illustrative embodiment thereof ismerely exemplary and is subject to wide variations in structure and its application in carrying outthe method herein set forth. A valuable feature of the invention is that in making the reinforced concrete object with,
within the open end of said'niold, reinforce rods in said mold the opposite ends of which project through said base and ram-head respectively, and nuts threaded on each end of each of said rods so that when the mold is filled with green concrete and said nuts are turned, compression is applied to the concrete in the mold through the medium of said rods, the base and ram-head and simultaneously therewith tension is applied to said rods. I
JOSEPH E. MILLER.
US133972A 1937-03-31 1937-03-31 Apparatus for producing reinforced concrete structures Expired - Lifetime US2210553A (en)

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496850A (en) * 1950-02-07 Method and apparatus fob manu
US2566689A (en) * 1946-11-04 1951-09-04 American Pipe & Constr Co Method of making reinforced concrete pipe
US2596495A (en) * 1947-01-10 1952-05-13 Macerata Stelio Method of manufacturing prestressed concrete structural members
US2645115A (en) * 1943-02-25 1953-07-14 Abeles Paul William Composite structural member and in the manufacture thereof
US2683915A (en) * 1949-02-14 1954-07-20 Tournon Giovanni Method of manufacturing structural elements of prestressed reinforced concrete
US2696729A (en) * 1944-06-19 1954-12-14 Whitacre Greer Fireproofing Co Cementitious plank and method of constructing it
US3022713A (en) * 1954-11-26 1962-02-27 Bengt F Friberg Prestressed concrete structures
US3071325A (en) * 1958-12-31 1963-01-01 Permali Ltd Insulating fish plates
US3180000A (en) * 1961-12-22 1965-04-27 Bossner Josef Formwork for manufacturing prestressed hollow concrete bodies
US4506428A (en) * 1983-02-14 1985-03-26 Bank Constructors, Inc. Method of forming a prefabricated concrete panel
US4529567A (en) * 1983-06-17 1985-07-16 Bouygues Process and device for manufacturing concrete structural elements
US4936006A (en) * 1989-03-01 1990-06-26 General Atomics Method of making prestressed concrete articles
US5012622A (en) * 1985-03-05 1991-05-07 Shimizu Construction Co., Ltd. Structural filler filled steel tube column
US5065795A (en) * 1989-03-01 1991-11-19 General Atomics Prestressed concrete articles
US5263297A (en) * 1989-11-02 1993-11-23 Kim Joong S Structural member with a metal shell
US5457929A (en) * 1989-11-02 1995-10-17 Kim; Joong S. Structural member with a metal shell
US5491941A (en) * 1994-09-28 1996-02-20 Richmond Screw Anchor Company Slippage controlled threaded rebar joint in reinforced concrete
US5533309A (en) * 1994-01-03 1996-07-09 Rivin; Evgeny I. Method and means for enhancement of beam stiffness
WO2003056135A1 (en) * 2001-12-21 2003-07-10 Gordon Cowan Support apparatus and apparatus for producing concrete articles
US20070022762A1 (en) * 2005-07-28 2007-02-01 Mr. Scott Ireland Method and apparatus for molding a reinforced, attachable ice block
US20130133278A1 (en) * 2011-11-30 2013-05-30 Korea Institute Of Construction Technology Non-welding type concrete-filled steel tube column having slot and method for fabricating the same

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496850A (en) * 1950-02-07 Method and apparatus fob manu
US2645115A (en) * 1943-02-25 1953-07-14 Abeles Paul William Composite structural member and in the manufacture thereof
US2696729A (en) * 1944-06-19 1954-12-14 Whitacre Greer Fireproofing Co Cementitious plank and method of constructing it
US2566689A (en) * 1946-11-04 1951-09-04 American Pipe & Constr Co Method of making reinforced concrete pipe
US2596495A (en) * 1947-01-10 1952-05-13 Macerata Stelio Method of manufacturing prestressed concrete structural members
US2683915A (en) * 1949-02-14 1954-07-20 Tournon Giovanni Method of manufacturing structural elements of prestressed reinforced concrete
US3022713A (en) * 1954-11-26 1962-02-27 Bengt F Friberg Prestressed concrete structures
US3071325A (en) * 1958-12-31 1963-01-01 Permali Ltd Insulating fish plates
US3180000A (en) * 1961-12-22 1965-04-27 Bossner Josef Formwork for manufacturing prestressed hollow concrete bodies
US4506428A (en) * 1983-02-14 1985-03-26 Bank Constructors, Inc. Method of forming a prefabricated concrete panel
US4529567A (en) * 1983-06-17 1985-07-16 Bouygues Process and device for manufacturing concrete structural elements
US5012622A (en) * 1985-03-05 1991-05-07 Shimizu Construction Co., Ltd. Structural filler filled steel tube column
US4936006A (en) * 1989-03-01 1990-06-26 General Atomics Method of making prestressed concrete articles
US5065795A (en) * 1989-03-01 1991-11-19 General Atomics Prestressed concrete articles
US5263297A (en) * 1989-11-02 1993-11-23 Kim Joong S Structural member with a metal shell
US5457929A (en) * 1989-11-02 1995-10-17 Kim; Joong S. Structural member with a metal shell
US5533309A (en) * 1994-01-03 1996-07-09 Rivin; Evgeny I. Method and means for enhancement of beam stiffness
US5491941A (en) * 1994-09-28 1996-02-20 Richmond Screw Anchor Company Slippage controlled threaded rebar joint in reinforced concrete
WO2003056135A1 (en) * 2001-12-21 2003-07-10 Gordon Cowan Support apparatus and apparatus for producing concrete articles
US20070022762A1 (en) * 2005-07-28 2007-02-01 Mr. Scott Ireland Method and apparatus for molding a reinforced, attachable ice block
US20130133278A1 (en) * 2011-11-30 2013-05-30 Korea Institute Of Construction Technology Non-welding type concrete-filled steel tube column having slot and method for fabricating the same

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