US3370451A - Apparatus and method for pointing tubes - Google Patents

Apparatus and method for pointing tubes Download PDF

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Publication number
US3370451A
US3370451A US467235A US46723565A US3370451A US 3370451 A US3370451 A US 3370451A US 467235 A US467235 A US 467235A US 46723565 A US46723565 A US 46723565A US 3370451 A US3370451 A US 3370451A
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US
United States
Prior art keywords
tube
jaws
chuck
jaw members
cylinder
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.)
Expired - Lifetime
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US467235A
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English (en)
Inventor
James W Schuetz
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.)
Blaw Knox Co
White Consolidated Industries Inc
Original Assignee
Blaw Knox Co
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 Blaw Knox Co filed Critical Blaw Knox Co
Priority to US467235A priority Critical patent/US3370451A/en
Priority to GB22796/66A priority patent/GB1079627A/en
Priority to FR1548265D priority patent/FR1548265A/fr
Priority to DEB87688A priority patent/DE1290512B/de
Application granted granted Critical
Publication of US3370451A publication Critical patent/US3370451A/en
Assigned to BLAW-KNOX COMPANY reassignment BLAW-KNOX COMPANY MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DEC. 26, 1978. DELAWARE Assignors: AETNA-STANDARD ENGINEERING COMPANY, BLAW-KNOX CONSTRUCTION EQUIPMENT, INC.,, BLAW-KNOX EQUIPMENT, INC., BLAW-KNOX FOOD & CHEMICAL EQUIPMENT, INC., BLAW-KNOX FOUNDRY & MILL MACHINERY, INC., COPES-VULCAN, INC.
Assigned to WHITE CONSOLIDATED INDUSTRIES, INC. reassignment WHITE CONSOLIDATED INDUSTRIES, INC. MERGER (SEE DOCUMENT FOR DETAILS). EFFECTIVE DEC. 26, 1978 DISTRICT OF COLUMBIA Assignors: ATHENS STOVE WORKS, INC., BLAW-KNOX COMPANY, BULLARD COMPANY THE, DURALOY BLAW-KNOX, INC., FAYSCOTT, INC., GIBSON PRODUCTS CORPORATION, HUPP, INC., JERGUSON GAGE & VALVE COMPANY, KELIVINATOR INTERNATIONAL CORPORATION, KELVINATOR COMMERCIAL PRODUCTS, INC., KELVINATOR, INC., R-P & C VALVE, INC., WHITE SEWING MACHINE COMPANY, WHITE-SUNDSTRAND MACHINE TOOL, INC., WHITE-WESTINGHOUSE CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21D15/00—Corrugating tubes
    • B21D15/02—Corrugating tubes longitudinally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C5/00—Pointing; Push-pointing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C5/00—Pointing; Push-pointing
    • B21C5/003—Pointing; Push-pointing of hollow material, e.g. tube
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn

Definitions

  • This invention relates to an apparatus and method for pointing tubes so drawing the tubes to reduce their diameter.
  • the point must have an overall transverse dimension such that it readily can be inserted through the die and must be long enough so that the projecting end of the point can be grasped by gripper tongs or jaws or the like on the other side of the die. If the drawing operation is to be carried out satisfactorily, the point and the juncture between the point and the remainder 3 of the tube must be nearly as strong as the tube itself so that the metal will not be pulled apart during the drawing operation, and the point should be accurately centered with respect to the tube to prevent distortion of the tube during drawing. Also, the pointing operation should be accomplished quickly and without requiring skill on the part of the operator and the apparatus for carrying out the pointing operation should be sturdy, simple and capable of being manufactured at reasonable cost.
  • a general object of the present invention is to provide a machine and method for pointing tubes that meets the foregoing requirements.
  • FIGURE 1 is a vertical axial section illustrating a preferred form of apparatus embodying the present invention.
  • FIGURE 2 is a transverse section taken along line 2-2 of FIGURE 1.
  • FIGURES 3 and 4 are side elevation and end views, respectively, of a typical tube that has been pointed in the illustrated apparatus.
  • FIGURES 5 and 6 are side and end elevations, respectively, of one of the gripper jaws used to deform the tube.
  • FIGURE 7 illustrates the inner or working face of the gripper jaw illustrated in FIGURES 5 and 6.
  • FIGURE 8 is a fragmentary elevation showing the initial engagement between the gripper jaws and a tube to be pointed.
  • FIGURE 9 is a section taken as indicated by line 9-9 of FIGURE 8.
  • FIGURE 10 is a similar section, but showing the jaws in their innermost position.
  • FIGURE 11 is similar to FIGURE 10, but shows a smaller tube, the tube being of the size shown in FIG- URES 3 and 4.
  • a preferred form of apparatus comprises a fluid operated chuck or similar mechanism that is adapted to urge a series of V-shaped gripper jaws or dies radially inwardly into engagement with the length of tube to be pointed.
  • the jaws each have a series of longitudinally spaced points that first engage the tube and thus hold the tube against slippage with respect to the dies.
  • As the jaws move inwardly they fold the tube into a fluted form having a maximum dimension sufficiently smaller than the original outer diameter of the tube to permit the end of the tube readily to be inserted into the drawing die.
  • the folding operation is completed in one continuous movement of the jaws and as soon as the inward movement of the jaws is completed, they are automatically retracted so that the tube can be removed from the apparatus ready for drawing through a die.
  • a preferred form of apparatus comprises a cylinder 10 supported on an appropriate base made up of a horizontal plate 11 and vertical plates 12 disposed at either end of the cylinder 10 and having arcuate saddle portions to receive the cylinder.
  • the vertical members 12 preferably are welded to the base member 11 and the cylinder 10 may be welded to the vertical members 12.
  • the internal bore of the cylinder 10 has a rear portion 14 of greatest diameter, an intermediate portion 15 of reduced diameter and a forward end portion 16 of enlarged diameter as compared to the intermediate portion 15.
  • a front cylinder head 18 At the front end of the cylinder there is a front cylinder head 18 that is held in place by a key 19 and an annular ring 20 and is prevented from inward movement by a shoulder 21 in the cylinder bore.
  • There is also a rear cylinder head 22 that is held in place against a shoulder 23 in the cylinder bore by a key 24 and a ring 25.
  • the rear cylinder head is sealed to the cylinder as by a conventional O-ring 26.
  • a plurality of angularly spaced gripper jaws are disposed within the cylinder.
  • Six jaws are shown in the drawings, but fewer or more jaws can be employed if desired.
  • a tube T is shown in FIGURES l and 2 to illustrate the initial engagement between the jaws and the tubes.
  • a hydraulically operated chuck 31 is disposed within the cylinder 10.
  • Chuck 31 is provided with radial slots 32 in which the jaws 30 are slidably mounted and in order to move the jaws inwardly and outwardly upon axial movement of the chuck, the slots 32 are T-shaped as shown, with enlarged head openings 33 that are defined by sloping outer camming surfaces 34 and inner camming surfaces 35 that are parallel to the surfaces 34.
  • the jaws 30 are provided with T heads 36, preferably composed of a material such as bronze in order to reduce friction the strips being secured to the jaws by cap screws 37.
  • the forward ends of the jaws are provided with wear plate 38 that bear against the inner surface of the forwarr cylinder head 18 while the rear ends of the jaws bea against a washer 40 that is supported by a plug 41 the projects inwardly from the rear cylinder head 22.
  • Th jaws are prevented from longitudinal movement by th front cylinder head 18 and the washer 40 and thus recir rocating movement of the chuck 31 within the cylind: 10 will cause the dies to move radially inwardly and on wardly.
  • the chuck is provided with a rear piston portion I that operates within the bore 14 and also slides alo the plug 41, the piston portion 45 being sealed to t cylindrical surface 14 and the outer surface of plug 41 is formed by folding the wall of the tube inwardly upon y appropriate packlngs such as the O-rings 46 and 47, itself to provide flutes 71
  • the ribs respectively
  • the chuck rs also provided with a forward 72, which define the flutes or recesses, extend substantlally plston portion 49 that fits within the intermediate bore radially and are substantially equally angularly spaced 15 of the cylinder, the required seal being provided by a and that the wall of the tube at the outer edge of each packing
  • conduits are being formed by the sharp V-shaped pro ections 77 on the connected to a source of fluid under pressure through g ipp l appropriate controls which can take any convenlent for-m aW m m rs 30 f a preferred form adapted to pr0-
  • the controls are arranged so that the operator 20 dllee Points Sheh as Shown in FIGURES 3 and 4 e Hillsonly has to push a button whereupon fluid under pressure halted n FIGURES 1 and 2 and On a large!
  • the outer surfaces of the body portions are slanted that fluid under pressure is applied to the space 52 until as Shown to pp the T heads 36
  • the inner P0111011s the ba k pressure bmld up t a predetermined d of the aws extend parallel to the common axis of the whereupon the connections are reversed to supply fluid ehrllek, the Cylinder 19 and the tube to he Pointed
  • the under pressure to the space 53 through the conduit 56 inner Portions of 1lhe l are formed into P as and permit fluid to be discharged from the space 52 to Shown at With the VS Pointing radially ihWaidiY t e sump.
  • the relieved portions make it For example with the shaft in the boss can be readily ad usted.
  • the shaft is this arrangement a slhgie machlhe can form Points on l d agamst 1 k Where passes h h h h tubes with a range of outside diameters from 1 750 inch to der head 22 by an O-rrng 69 With this arrangement rear- 0-625 lheh Without requiring adliisti'hehi eXeePi 0f the ward movement of the chuck is stopped by engagement retracted Position of ihejaws y the hand Wheel of the chuck with the end flange 66; the position of the As noted above, the tubes to he Peihied are first llange can be adjusted by the hand wheel 68.
  • the guide bar prevents relative rotation between formed p y y cutting y Or relieving the Inner h h k d th li d 10 60 of the jaws as shown to provide flat surfaces 83, leaving ohm strong pointed portions of the type shown in FIG- Su fa T PTOJeCiIOHS PTefefahiY are Shghiiy eioh' RES and 4 on the ends f tubes of a Wlde mug of gated 1n the direction parallel to the axis of the tube and 123s Wlthout requmng any change In the gnpper Jaws present sharp edges 84 to a tube disposed within the M Without requiring any adjustment of the apparatus aws; As shown in the drawing, the projections 77 are ther than the adjustment of the retracted position of the aXially short as compared to e intermediate surfaces 83 1W5 b h h d wheel 3 As Shown m FIGURES 3 The manner in which the
  • the stop is adjusted so that the points of each jaw nge of from about to about of the outer member engage the outer surface of the tube with sufliw ameter of the tube.
  • the reduced diameter of the point 75 cient firmness that the tube is accurately centered within the chuck.
  • the tube is inserted into the chuck until the end of the tube engages the washer 40. Then, as previously described, the chuck is actuated to move the jaw members radially inwardly.
  • the sharp points 77 of the jaws somewhat penetrate the bottoms of the flutes thereby producing the indentations indicated at 76 in FIGURE 3.
  • the outwardly flared portions 75 of the jaws produce the merging areas 74 between the point and the body of the tube.
  • the bottoms of the fluted portions between the indentations 76 are rather flat as shown at 86, having been formed by the flat intermediate areas 83 of the jaws. The point is accurately centered with respect to the tube and accurately formed because the initial adjustment of the retracted position of the jaws insures that the tube will be properly centered with respect to the jaws when the operation is commenced and because the sharp points on the jaws substantially eliminate the possibility of slippage between the metal of the tube wall and the jaws.
  • the chuck moves the jaws inwardly uniformly and thus provides the required accurate point in a single operation. After the jaws have been automatically retracted by the chuck, the operator only has to remove the pointed tube from the chuck and insert it through the drawing die in the usual manner.
  • FIGURE 11 illustrates the conclusion of a pointing operation as applied to a tube of smaller diameter and thinner wall.
  • the hand wheel is operated to screw the adjusting shaft inwardly and thus limit retracting movement of the jaws to the smaller outer diameter of the tube.
  • the folding operation occurs as before.
  • the ribs 87 of this smaller lighter gauge tube are disposed within the relieved portions 82 of the jaws. If the jaws were not relieved, it would not be possible to point tubes of such small diameter using the same machine and the same jaws that are capable of pointing tubes of larger diameter and heavier wall.
  • a present type of machine is capable of pointing tubes having a Wide range of outside diameters and of wall thicknesses.
  • the invention provides a method and apparatus whereby tubes of a wide range of sizes and wall thicknesses can be rapidly and accurately pointed by a single operation in a simple, sturdy and relatively inexpensive machine.
  • the points are accurately centered with respect to the tube, the reduction in dimension is adequate for ordinary drawing operations and the strength of the points and the connection between the points and the tube is adequately maintained so that the tension exerted on the points during the drawing operation can be sustained without breakage.
  • Apparatus for pointing metal tubes preparatory to drawing them through a die comprising a plurality of jaw member angularly spaced about a central axis; means for moving all of the jaw members simultaneously and at the same speed in radial directions toward said axis and for retracting said jaw members away from said axis to a definite position at which the jaw members are substantially radially equidistant from said axis, each of said jaw members having an inner V-shaped portion provided by plane surfaces extending parallel to said axis and adapted to engage the wall of a tube to be pointed, the V-shaped portions pointing radially inwardly toward said axis, the apexes of the V-shaped portions of said members each having a plurality of longitudinally spaced, sharp, tube-engaging projections and the jaw members having tube-wall engaging surfaces between the projections, the projections being axially short as compared to the length of the surfaces between the projections.
  • the means for moving the jaw members comprises a cylinder coaxial with said axis, a chuck mounted in said cylinder, said jaw members being radially slidable in said chuck and said chuck and said jaw members being provided with cooperating camming surfaces whereby longitudinal movement of said chuck within said cylinder in a forward direction moves said jaw members radially inwardly and toward said axis and movement of said chuck in a rearward direction causes said jaws to retract outwardly, and hydraulic means for moving said chuck longitudinally with respect to said cylinder.
  • Apparatus according to claim 5 wherein an adjustable stop is provided to limit the rearward movement of said chuck thereby limiting the retracting movement of said jaws.
  • Apparatus for pointing tubes comprising a cylinder having an open end, a chuck mounted in said cylinder and coaxial therewith, hydraulic means for moving said chuck axially with respect to said cylinder; a plurality of jaw members substantially equiangularly spaced about the axis of said cylinder, said jaw members being radially slidable in said chuck and being restrained against axial movement within said cylinder, said jaw members and said chuck being provided with cooperating camming surfaces whereby axial movement of said chuck within said cylinder in a forward direction moves said jaw members radially inwardly toward said axis and movement of said chuck in a rearward direction causes said jaws to retract outwardly from said axis; an adjustable stop disposed at the end of said cylinder opposite said open end to limit the rearward movement of said chuck thereby limiting the retracting movement of said jaw members, each of said jaw members having an inner V- shaped portion adapted to engage the wall of a tube to be pointed, the V-shaped portions pointing
  • jaw members being relieved between said projections to provide substantially flat tube wall engaging surfaces between the projections.
  • the method of cold-forming points on metal tubes which includes the steps of disposing a plurality of jaw members about an axis with the members substantially equiangularly spaced about the axis, the jaw members pointed into the space between said jaw members with said projections engaging the outer surface of the tube and locating the tube concentric with said axis, then mov ing the jaw members inwardly toward said axis simultaneously and at the same rate of speed, the projections of said jaw members initially forming indentations in 8 said tube and retaining said tube substantially concentric with said axis, and continuing the inward movement of said V-shaped members without interruption to fold adjacent portions of'the tube wall toward each other until the wall portions are substantially in engagement with each other without substantially reducing the wall and a provide radially extending ribs defining intermediate flutes, and thereafter retracting said jaw members and releasing said tube therefrom.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
US467235A 1965-06-28 1965-06-28 Apparatus and method for pointing tubes Expired - Lifetime US3370451A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US467235A US3370451A (en) 1965-06-28 1965-06-28 Apparatus and method for pointing tubes
GB22796/66A GB1079627A (en) 1965-06-28 1966-05-23 Apparatus and method for pointing tubes
FR1548265D FR1548265A (enrdf_load_stackoverflow) 1965-06-28 1966-06-23
DEB87688A DE1290512B (de) 1965-06-28 1966-06-23 Vorrichtung zum Anbringen von Faltangeln an Rohrenden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US467235A US3370451A (en) 1965-06-28 1965-06-28 Apparatus and method for pointing tubes

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US3370451A true US3370451A (en) 1968-02-27

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US467235A Expired - Lifetime US3370451A (en) 1965-06-28 1965-06-28 Apparatus and method for pointing tubes

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US (1) US3370451A (enrdf_load_stackoverflow)
DE (1) DE1290512B (enrdf_load_stackoverflow)
FR (1) FR1548265A (enrdf_load_stackoverflow)
GB (1) GB1079627A (enrdf_load_stackoverflow)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533270A (en) * 1962-11-30 1970-10-13 Wakefield Eng Co Inc Apparatus for forming heat transfer device
US4004446A (en) * 1975-02-13 1977-01-25 Northern Telecom Limited Tool for preforming a section of a tubular connector
US4179915A (en) * 1976-11-05 1979-12-25 G. Siempelkamp Gmbh & Co. Apparatus for the external calibration (sizing) of tubular elements
US4276764A (en) * 1979-07-17 1981-07-07 Kozhevnikov Vladislav A Die set for sizing sections
US4308744A (en) * 1980-02-08 1982-01-05 United Wire & Supply Corporation Tube pointer
US4350036A (en) * 1980-02-07 1982-09-21 Vale Industries Inc. Apparatus for pointing work pieces
EP0187623A1 (de) * 1985-01-10 1986-07-16 Urs Kellner Vorrichtung zum Kaltpressen eines konischen Gewindes
EP0356375A3 (de) * 1988-08-26 1991-01-16 BBR Bauverfahren AG Verfahren zum Kaltpressen eines konischen Aussengewindes
US5634367A (en) * 1994-04-18 1997-06-03 Kabushiki Kaisha Toshiba Press forming device
US20060081688A1 (en) * 2004-10-15 2006-04-20 Sonoco Development, Inc. Paperboard container having curvilinear portion
US20070059120A1 (en) * 2005-09-15 2007-03-15 Vigliotti Daniel P Blind rivet and method
CN100402174C (zh) * 2006-10-30 2008-07-16 钊田 纵向波纹管挤制装置
CN101829721B (zh) * 2009-03-09 2013-07-31 和龙双昊高新技术有限公司 贮液器筒壁冲凸外卡工装
US20150101828A1 (en) * 2013-10-11 2015-04-16 Schlumberger Technology Corporation Tube Forming Device
JP5767970B2 (ja) * 2011-03-18 2015-08-26 新日鐵住金株式会社 口付け装置及び口付け方法
US20150273548A1 (en) * 2011-09-30 2015-10-01 Nisshin Steel Co., Ltd. Method of manufacturing rectangular tube having stepped portion
JP2016221549A (ja) * 2015-06-01 2016-12-28 株式会社新富士空調 端部縮径管の製造装置および製造方法
US20170157877A1 (en) * 2015-12-08 2017-06-08 Familie Burger GbR Method for production of a combustion chamber tube for restraint systems in vehicles and device for implementation of the method
US9757789B2 (en) * 2011-09-30 2017-09-12 Nisshin Steel Co., Ltd. Method of manufacturing rectangular tube having stepped portion
US10177517B1 (en) * 2018-05-15 2019-01-08 Aptiv Technologies Limited Ferrule crimping tool

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1587822A (en) * 1976-11-06 1981-04-08 Lucas Industries Ltd Manufacture of yokes for dynamo electric machines
CH630542A5 (de) * 1978-06-14 1982-06-30 Zschokke Wartmann Ag Verfahren zur herstellung von blechzylindern mit kuehl- bzw. versteifungsrippen.
AT376589B (de) * 1982-02-04 1984-12-10 Karl Sauder Vorrichtung zum verpressen rohrfoermiger teile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211622A (en) * 1937-02-23 1940-08-13 Weatherhead Corp Forming machine
US2997911A (en) * 1958-09-16 1961-08-29 Du Pont Cutting and crimping device
US2999405A (en) * 1957-12-24 1961-09-12 Smith Corp A O Apparatus for radially compressing articles
US3154978A (en) * 1962-07-09 1964-11-03 United Wire & Supply Corp Tube pointer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962247C (de) * 1955-04-30 1957-04-18 Kronprinz Ag Aus Ober- und Unterteil bestehendes Pressgesenk zum Herstellen von rundquerschnittigen Rohrziehangeln
DE1886513U (de) * 1963-11-22 1964-01-30 Kieserling & Albrecht Werzeug zum anbringen von faltangeln rohrenden, insbesondere an duennwandigen rohren.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211622A (en) * 1937-02-23 1940-08-13 Weatherhead Corp Forming machine
US2999405A (en) * 1957-12-24 1961-09-12 Smith Corp A O Apparatus for radially compressing articles
US2997911A (en) * 1958-09-16 1961-08-29 Du Pont Cutting and crimping device
US3154978A (en) * 1962-07-09 1964-11-03 United Wire & Supply Corp Tube pointer

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533270A (en) * 1962-11-30 1970-10-13 Wakefield Eng Co Inc Apparatus for forming heat transfer device
US4004446A (en) * 1975-02-13 1977-01-25 Northern Telecom Limited Tool for preforming a section of a tubular connector
US4179915A (en) * 1976-11-05 1979-12-25 G. Siempelkamp Gmbh & Co. Apparatus for the external calibration (sizing) of tubular elements
US4276764A (en) * 1979-07-17 1981-07-07 Kozhevnikov Vladislav A Die set for sizing sections
US4350036A (en) * 1980-02-07 1982-09-21 Vale Industries Inc. Apparatus for pointing work pieces
US4308744A (en) * 1980-02-08 1982-01-05 United Wire & Supply Corporation Tube pointer
EP0187623A1 (de) * 1985-01-10 1986-07-16 Urs Kellner Vorrichtung zum Kaltpressen eines konischen Gewindes
US4689984A (en) * 1985-01-10 1987-09-01 Urs Kellner Method for producing male conical threads
EP0356375A3 (de) * 1988-08-26 1991-01-16 BBR Bauverfahren AG Verfahren zum Kaltpressen eines konischen Aussengewindes
US5634367A (en) * 1994-04-18 1997-06-03 Kabushiki Kaisha Toshiba Press forming device
CN1056790C (zh) * 1994-04-18 2000-09-27 株式会社东芝 冲压装置
US7703664B2 (en) 2004-10-15 2010-04-27 Sonoco Development, Inc. Paperboard container having curvilinear portion
US20060081688A1 (en) * 2004-10-15 2006-04-20 Sonoco Development, Inc. Paperboard container having curvilinear portion
US7887273B2 (en) 2005-09-15 2011-02-15 Newfrey Llc Blind rivet and method
US20070059120A1 (en) * 2005-09-15 2007-03-15 Vigliotti Daniel P Blind rivet and method
CN100402174C (zh) * 2006-10-30 2008-07-16 钊田 纵向波纹管挤制装置
CN101829721B (zh) * 2009-03-09 2013-07-31 和龙双昊高新技术有限公司 贮液器筒壁冲凸外卡工装
JP5767970B2 (ja) * 2011-03-18 2015-08-26 新日鐵住金株式会社 口付け装置及び口付け方法
AU2012317494B2 (en) * 2011-09-30 2018-03-22 Nisshin Steel Co., Ltd. Manufacturing method for stepped rectangular pipe
US20150273548A1 (en) * 2011-09-30 2015-10-01 Nisshin Steel Co., Ltd. Method of manufacturing rectangular tube having stepped portion
US9757789B2 (en) * 2011-09-30 2017-09-12 Nisshin Steel Co., Ltd. Method of manufacturing rectangular tube having stepped portion
US9821355B2 (en) * 2011-09-30 2017-11-21 Nisshin Steel Co., Ltd. Method of manufacturing rectangular tube having stepped portion
US20150101828A1 (en) * 2013-10-11 2015-04-16 Schlumberger Technology Corporation Tube Forming Device
JP2016221549A (ja) * 2015-06-01 2016-12-28 株式会社新富士空調 端部縮径管の製造装置および製造方法
US20170157877A1 (en) * 2015-12-08 2017-06-08 Familie Burger GbR Method for production of a combustion chamber tube for restraint systems in vehicles and device for implementation of the method
US9987815B2 (en) * 2015-12-08 2018-06-05 Familie Burger GbR Method for production of a combustion chamber tube for restraint systems in vehicles and device for implementation of the method
US10177517B1 (en) * 2018-05-15 2019-01-08 Aptiv Technologies Limited Ferrule crimping tool
CN110492329A (zh) * 2018-05-15 2019-11-22 安波福技术有限公司 套圈卷压工具
CN110492329B (zh) * 2018-05-15 2021-01-01 安波福技术有限公司 套圈卷压工具

Also Published As

Publication number Publication date
DE1290512B (de) 1969-03-13
GB1079627A (en) 1967-08-16
FR1548265A (enrdf_load_stackoverflow) 1968-12-06

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Free format text: MERGER;ASSIGNORS:BLAW-KNOX COMPANY;KELVINATOR, INC.;WHITE-WESTINGHOUSE CORPORATION;AND OTHERS;REEL/FRAME:003926/0372

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Owner name: BLAW-KNOX COMPANY

Free format text: MERGER;ASSIGNORS:AETNA-STANDARD ENGINEERING COMPANY;BLAW-KNOX CONSTRUCTION EQUIPMENT, INC.,;BLAW-KNOX EQUIPMENT, INC.;AND OTHERS;REEL/FRAME:003926/0382

Effective date: 19781221