DE1500759B1 - Steel bar connection, especially for bars of reinforced concrete parts - Google Patents

Steel bar connection, especially for bars of reinforced concrete parts

Info

Publication number
DE1500759B1
DE1500759B1 DE19661500759 DE1500759A DE1500759B1 DE 1500759 B1 DE1500759 B1 DE 1500759B1 DE 19661500759 DE19661500759 DE 19661500759 DE 1500759 A DE1500759 A DE 1500759A DE 1500759 B1 DE1500759 B1 DE 1500759B1
Authority
DE
Germany
Prior art keywords
sleeve
bars
reinforced concrete
connection
concrete parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19661500759
Other languages
German (de)
Inventor
Siegfried Gutmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of DE1500759B1 publication Critical patent/DE1500759B1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B17/00—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation
    • F16B17/004—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation of rods or tubes mutually
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F15/00—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire
    • B21F15/02—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire
    • B21F15/06—Connecting wire to wire or other metallic material or objects; Connecting parts by means of wire wire with wire with additional connecting elements or material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/232—Resilient strips of hard material, e.g. metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B4/00—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/0406—Clamping or clipping connections for rods or tubes being coaxial
    • F16B7/0426—Clamping or clipping connections for rods or tubes being coaxial for rods or for tubes without using the innerside thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49927—Hollow body is axially joined cup or tube
    • Y10T29/49929—Joined to rod
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/57—Distinct end coupler

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Forging (AREA)

Description

Verbindungsvorgang vermieden werden. Wenn z. B. 15 oder -muffe; und weiter die an sich z. B. in Gestalt mehrere Verbindungsstellen von derartigen Stangen eingelegter Klemmhülsen für Kupplungsmuffen bean einer Betonklotzverbindung hergestellt werden, so
hätte jede dabei eintretende Längsbewegung der zuConnection process can be avoided. If z. B. 15 or socket; and further the in itself z. B. in the form of several connecting points of such rods inserted clamping sleeves for coupling sleeves bean a concrete block connection are made so
would have any longitudinal movement of the to

verbindenden Stangen die Folge, daß die armiertenconnecting rods the consequence that the reinforced

nutzte spiegelbildlich nach beiden Richtungen von der Mitte ausgehende Sägeverzahnung.used mirror-inverted saw teeth starting from the center in both directions.

Durch die gleichzeitig angebrachte erweiterte Aus-Betonteile nicht mehr ihre vor Anlegen der Verbin- 20 nehmung der Hülsen-Innenfläche in der Mitte der dung bestehende gegenseitige Lage behalten. Sie beiden Sägezahnreihen, verbunden mit der beim würden bei unterschiedlicher Längenänderung von Preßvorgang leicht konisch nach beiden Seiten ververschiedenen Verbindungsstellen sogar eine Schräg- jungten Hülsen-Außenfläche wird in einfacher Weise stellung erfahren, wozu bei drei Verbindungsstellen das Auftreten unerwünschter, zu Längenänderungen eventuell noch eine Verspannung treten würde, die 25 der ganzen Stabverbindung führender axialer Kräfte bis zur Zerstörung von Teilen führen könnte. vermieden: Die innere Ausnehmung in der Mitte derDue to the expanded concrete parts that were attached at the same time, the inner surface of the sleeve in the middle of the sleeve no longer had to be taken before the connection was made existing mutual situation. You two rows of sawtooths, connected with the at would differ slightly conically on both sides with different changes in length from the pressing process Connection points even an inclined, young sleeve outer surface is made in a simple manner Find out position, including the occurrence of undesirable changes in length at three connection points possibly still a tension would occur, the 25 of the whole rod connection leading axial forces could lead to the destruction of parts. avoided: the inner recess in the middle of the

Die Gefahr solcher unkontrollierbaren Längen- Hülse bietet Raum für eingepreßtes Hülsenmaterial änderungen durch das beim Aufpressen auf die ge- und verhindert, daß sich dieses beim Preßvorgang rippten Stabenden zum Fließen kommende und da- zwischen die Stirnseiten der beiden Stäbe drängt und bei eine die zu verbindenden Stabenden auseinander- 30 sie auseinandertreibt. Und beim Aufpressen der nach treibende Schubwirkung ausübende Hülsen- oder den beiden axialen Außenenden der Verbindung ab-Muffenmaterial besteht sogar bei innen völlig glatten fallenden Verjüngungen der Hülsen-Außenflächen Muffen, also auch besonders bei solchen Verbindun- erhält die bei eintretender Bewegung des Hülsengen, bei denen die aufgepreßte Muffe über die Mitte Materials eine nach der Mitte der Hülse zu gerichtete der Stoßstelle auf dem Außenmantel Vertiefungen 35 Komponente, die in Zusammenwirken mit den Querenthält oder sogar an ihrer Innenfläche einen nach rippen der Stäbe ein Auseinandertreiben dieser Stäbe der Achse zu verjüngten Steg trägt, wie bei einer be- und damit eine Längenänderung der Gesamtverbinkannten (zusätzlich mit gezahnten Klemmhülsen aus- dung verhindert.The danger of such an uncontrollable length sleeve offers space for pressed sleeve material changes due to the pressing on and prevents this during the pressing process ribbed ends of the rods coming to flow and between the ends of the two rods pushes and at one of the rod ends to be connected drives them apart. And when pressing the after sleeve material exerting a driving shear effect or the two axially outer ends of the connection from sleeve material exists even with falling taperings of the outer sleeve surfaces that are completely smooth on the inside Sockets, especially with such connections in which the pressed-on sleeve over the middle of the material is directed towards the middle of the sleeve the abutment point on the outer shell, wells 35 containing the component that interacts with the transverse or even on their inner surface a ripping of the rods driving these rods apart the axis to tapered web contributes, as in a loading and thus a change in length of the total banished (additionally prevented with toothed clamping sleeves.

gestatteten) Kupplungsmuffe. Dabei treten dann die Ein Ausführungsbeispiel der Erfindung wird anpermitted) coupling sleeve. An embodiment of the invention will then come into play

unkontrollierbaren, nach beiden Seiten axial nach 40 Hand der Zeichnung erläutert. Es zeigt außen gerichteten Schubkräfte beim Verpressen be- F i g. 1 eine erfindungsgemäß ausgestaltete Stahl-uncontrollable, axially explained on both sides after 40 hand of the drawing. It shows outwardly directed shear forces during compression loading F i g. 1 a steel designed according to the invention

sonders störend in Erscheinung.particularly disturbing in appearance.

Diese Gründe haben die Fachwelt daran gehindert,
sich der zahlreichen bekannten Verbindungsarten mit
einfachem Aufpressen einer Verbindungsmuffe für 45 links vor, und solche Stoßverbindungen zu bedienen, bei denen es Schnitt, und auf gute Längenmaßhaltigkeit der Verbindungsstellen ankommt, wie es besonders bei den geschilderten
Betonbewehrungsstäben der Fall ist. Hier hat manThese reasons have prevented the professional world from
the numerous known types of connection with
simply pressing on a connecting sleeve for 45 left, and using those butt joints that require a cut and good length accuracy of the connection points, as is particularly the case with the ones described
Concrete rebar is the case. Here you have

stab-Stoßverbindung, teilweise weggebrochen gezeichnet, bar-butt joint, drawn partially broken away,

F i g. 2 die für die Verbindung verwendete Hülse, rechts nach dem Verpressen, imF i g. 2 the sleeve used for the connection, on the right after pressing, in

F i g. 3 oben einen Teillängsschnitt durch die Stoßstelle vor dem Verpressen mit der inneren gezahnten Hülse, und unten eine Ansicht der fertig verpreßtenF i g. 3 above a partial longitudinal section through the joint before pressing with the inner toothed one Sleeve, and below a view of the finished pressed

sich deshalb bis in die neueste Zeit mit Vergußmetali- 50 Verbindung mit der beiderseits konisch verjüngten Verbindungen oder mit Thermit-Muffenstoßverbin- Hülse.therefore up to the most recent times with casting metal 50 connection with the conically tapered on both sides Connections or with Thermit socket butt joint sleeve.

Die Rippenstahlstäbe 1 und 2 sind nach F i g. 1 durch eine auf die Stabenden aufgepreßte und dabei zum Kaltfließen gebrachte Metallhülse 3 in einem oder mehreren Preßvorgängen miteinander verpreßt. Zur Herstellung einer solchen Stoßverbindung in jeder beliebigen Lage eignen sich z. B. tragbare hydraulische Handpressen, wie sie auch für das Verklemmen und das Anbringen von Verbindungen anThe ribbed steel bars 1 and 2 are shown in FIG. 1 by one pressed onto the rod ends and at the same time brought to cold flow metal sleeve 3 pressed together in one or more pressing processes. To produce such a butt joint in any position are, for. B. portable hydraulic Hand presses, such as those used for clamping and making connections

Stoßverbindung zwischen gerippten Baustählen her- 60 Drahtseilen in Gebrauch sind. Während sich solche stellen zu können, die von dem bisherigen Mangel beweglichen Maschinenpressen besonders für den unkontrollierbarer Längenänderung frei ist und sich Baustellenbetrieb und die Verbindung von fertigen deshalb gerade für die Vereinigung armierter Beton- Bauteilen eignen, so wird man für den Werksbetrieb teile eignet, bei denen es auf Einhaltung hoher meist stationäre hydraulische Pressen benutzen mit Festigkeitswerte und außerdem unveränderter Län- 65 jeweils Werkzeugen, die den verschiedenen Stabgenabmessungen ankommt. durchmessern entsprechen.Butt joint between ribbed structural steels - 60 wire ropes are in use. While such to be able to provide the moving machine presses from the previous shortage, especially for the uncontrollable change in length is free and construction site operations and the connection of manufacture therefore especially suitable for the union of reinforced concrete components, so one becomes for the factory operation parts are suitable for which it is necessary to use mostly stationary hydraulic presses with high compliance Strength values and also unchanged length 65 each tools, the different rod dimensions arrives. correspond to diameters.

Zu diesem Zweck wird bei einer Stahlstabverbin- Die F i g. 2 zeigt links die Innen-Ausnehmung 5 imFor this purpose, in a steel rod connection, the FIG. 2 shows the inner recess 5 in the left

dung, für an den Enden stoßartig aneinandergesetzte Schnittbild der Hülse und läßt die Wirkung des Zu-dung, for cut-away image of the sleeve that is juxtaposed at the ends and allows the effect of the

dungen beholfen und dabei wohl oder übel die mit der Anwendung solcher Verfahren beim Fertigteilbau auf der Baustelle verbundenen Schwierigkeiten in Kauf genommen.with the use of such methods in precast construction on the construction site associated difficulties accepted.

Ziel der Erfindung ist es demgegenüber, auch mit der an sich wünschenswert einfachen und daher auch unabhängig vom Arbeitsplatz werk- und baustellengerecht anwendbaren Preßmuffenverbindung eineThe aim of the invention, on the other hand, is also to use the simple and therefore desirable per se Independent of the workplace, a press socket connection that can be used in a factory and construction site

sammendrückens beim Vorpressen durch den Vergleich des Hülsenquerschnitts vor und nach dem Verpressen erkennen. Das Hülsenmaterial legt sich dicht anschließend an die gesamte Achsenfläche der Stäbe.compressing during pre-pressing by comparing the sleeve cross-section before and after Recognize pressing. The sleeve material then lies tightly against the entire axial surface of the Bars.

Die F i g. 3 zeigt eine Hülse 3, die auf ihren beiden Hälften verschieden gerichtete Innenverzahnungen 4 trägt, die beim Verpressen entgegengesetzte, nach der Mitte zu gerichtete Schubkräfte ausüben, um die sich gegenüberliegende Stabenden 1 und 2 nicht auseinandergehen zu lassen, sondern sie aufeinander zu drücken. Die Zeichnung zeigt oben die in noch nicht verpreßtem Zustand der Hülse in deren Mitte umlaufende Ausnehmung 5, die beim Preßvorgang das Eindringen von Metall in den Spalt zwischen den auf Stoß einander gegenübergestellten Stäben verhindern soll. Der untere Teil der Zeichnung zeigt die durch das Preßwerkzeug erzeugte, nach beiden Seiten leicht konisch verjüngte Form 6 der Hülse 3 nach dem Verpressen.The F i g. 3 shows a sleeve 3, the internal toothings 4, which are directed differently on its two halves carries, which exert opposing shear forces directed towards the center during pressing, around which not to let opposite rod ends 1 and 2 diverge, but rather they approach one another to press. The top of the drawing shows the sleeve in the not yet compressed state, which is circumferential in its center Recess 5, the penetration of metal in the gap between the pressing process to prevent rods facing each other on impact. The lower part of the drawing shows the The shape 6 of the sleeve 3, which is slightly tapered towards both sides, is produced by the pressing tool the pressing.

Claims (1)

Patentanspruch:Claim: Stahlstabverbindung, für an den Enden stoßartig aneinandergesetzte Stäbe, die quer gerippt sind, insbesondere für Stäbe von armierten Betonteilen, dadurch gekennzeichnet, daßSteel rod connection, for rods that are butt-jointed at the ends and that are ribbed transversely are, in particular for bars of reinforced concrete parts, characterized in that ίο an der Verbindungsstelle auf die Stabenden (1,2) eine Hülse (3) gepreßt ist, die an ihrer Innenfläche spiegelbildlich von der Mitte aus angeordnete, zur Mitte gerichtete Sägezähne (4) aufweist, wobei in der Mitte die Sägezähne durch eineίο at the connection point on the rod ends (1,2) a sleeve (3) is pressed, which is arranged on its inner surface in a mirror-inverted manner from the center, to the center directed saw teeth (4), with the saw teeth in the middle by a is erweiterte Ausnehmung (5) unterbrochen sind und die Hülse an ihrer Außenfläche (6) leicht konisch verjüngt ist.is extended recess (5) are interrupted and the sleeve is slightly tapered on its outer surface (6). Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DE19661500759 1966-12-14 1966-12-14 Steel bar connection, especially for bars of reinforced concrete parts Withdrawn DE1500759B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0048735 1966-12-14

Publications (1)

Publication Number Publication Date
DE1500759B1 true DE1500759B1 (en) 1970-12-10

Family

ID=7128751

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661500759 Withdrawn DE1500759B1 (en) 1966-12-14 1966-12-14 Steel bar connection, especially for bars of reinforced concrete parts

Country Status (10)

Country Link
US (1) US3551999A (en)
AT (1) AT282903B (en)
BE (1) BE707934A (en)
CH (1) CH464609A (en)
DE (1) DE1500759B1 (en)
DK (1) DK128749B (en)
FR (1) FR1552292A (en)
GB (1) GB1174154A (en)
NL (1) NL152046B (en)
SE (1) SE343652B (en)

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CN110725480B (en) * 2019-10-29 2023-12-08 中建七局安装工程有限公司 Reinforcing steel bar butt joint method and reinforcing steel bar butt joint assembly
CN115233908B (en) * 2022-09-23 2023-01-17 河北易达钢筋连接技术有限公司 Improved reinforcing bar extrusion connecting sleeve assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1109258A (en) * 1913-10-06 1914-09-01 Edwin E Slick Spliced reinforcing-bar.
US1643150A (en) * 1925-12-04 1927-09-20 American Cable Co Inc Attachment for wire strand and process for producing the same
US1727896A (en) * 1927-04-04 1929-09-10 Joseph L Mraz Apparatus for making tubular joints
US2022977A (en) * 1931-02-05 1935-12-03 Bell Telephone Labor Inc Joint in line wires
DE663175C (en) * 1938-07-30 Ventzki G M B H Maschf Device for connecting several adjacent bars
DE1072671B (en) * 1953-01-09 1960-01-07 AMP Incorporated, Harrisburg, 'Pa. (V.St.A.) Press sleeve for connecting two electrical conductors
DE1828164U (en) * 1961-01-17 1961-03-16 Pfisterer Elektrotech Karl TENSILE PRESS CONNECTOR FOR STEEL-ALUMINUM ROPES.
GB863676A (en) * 1957-07-03 1961-03-22 British Ropes Ltd Improvements in or relating to the joining of wire ropes or strands
US2998696A (en) * 1959-04-13 1961-09-05 Slater N Co Ltd Gripping surface for preformed helical rods
DE1200614B (en) * 1961-02-16 1965-09-09 Cable Covers Ltd Coupling sleeve for rods, cables, wire ropes or the like.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE663175C (en) * 1938-07-30 Ventzki G M B H Maschf Device for connecting several adjacent bars
US1109258A (en) * 1913-10-06 1914-09-01 Edwin E Slick Spliced reinforcing-bar.
US1643150A (en) * 1925-12-04 1927-09-20 American Cable Co Inc Attachment for wire strand and process for producing the same
US1727896A (en) * 1927-04-04 1929-09-10 Joseph L Mraz Apparatus for making tubular joints
US2022977A (en) * 1931-02-05 1935-12-03 Bell Telephone Labor Inc Joint in line wires
DE1072671B (en) * 1953-01-09 1960-01-07 AMP Incorporated, Harrisburg, 'Pa. (V.St.A.) Press sleeve for connecting two electrical conductors
GB863676A (en) * 1957-07-03 1961-03-22 British Ropes Ltd Improvements in or relating to the joining of wire ropes or strands
US2998696A (en) * 1959-04-13 1961-09-05 Slater N Co Ltd Gripping surface for preformed helical rods
DE1828164U (en) * 1961-01-17 1961-03-16 Pfisterer Elektrotech Karl TENSILE PRESS CONNECTOR FOR STEEL-ALUMINUM ROPES.
DE1200614B (en) * 1961-02-16 1965-09-09 Cable Covers Ltd Coupling sleeve for rods, cables, wire ropes or the like.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952557A1 (en) * 1979-12-28 1981-07-02 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Wide tolerance component clamping device - has continuous sets of steps in mating ramp faces
CN112108593A (en) * 2020-09-03 2020-12-22 王晓明 Steel bar connecting device

Also Published As

Publication number Publication date
US3551999A (en) 1971-01-05
BE707934A (en) 1968-04-16
FR1552292A (en) 1969-01-03
SE343652B (en) 1972-03-13
GB1174154A (en) 1969-12-17
NL6717048A (en) 1968-06-17
CH464609A (en) 1968-10-31
AT282903B (en) 1970-07-10
NL152046B (en) 1977-01-17
DK128749B (en) 1974-06-24

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E77 Valid patent as to the heymanns-index 1977
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