US3479714A - Apparatus for tightening and locking nuts on bolts - Google Patents

Apparatus for tightening and locking nuts on bolts Download PDF

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Publication number
US3479714A
US3479714A US603910A US3479714DA US3479714A US 3479714 A US3479714 A US 3479714A US 603910 A US603910 A US 603910A US 3479714D A US3479714D A US 3479714DA US 3479714 A US3479714 A US 3479714A
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United States
Prior art keywords
nut
tool
wrench member
impact
bolt
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Expired - Lifetime
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US603910A
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English (en)
Inventor
Robert T Allsop
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GKN Screws and Fasteners Ltd
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GKN Screws and Fasteners Ltd
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    • 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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/001—Combined nut setting and crimping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/002—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose for special purposes
    • 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
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5116—Plural diverse manufacturing apparatus including means for metal shaping or assembling forging and bending, cutting or punching
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53687—Means to assemble or disassemble by rotation of work part
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53909—Means comprising hand manipulatable tool

Definitions

  • a tool for tightening and locking a nut on a bolt having a substantially cylindrical body, a spindle extending axially within the body, a motor for rotating the spindle connected to one end thereof, a nut engaging wrench member connected to the other end of the spindle and also slidable axially on this end of the spindle, a pneumatically operated impact piston slidably mounted upon the spindle within the body and having a tubular sleeve projecting from its forward face for delivering an axially directed impact to the rear of the wrench member and a deforming tool mounted within the wrench member and having forwardly extending projections to engage and deform the end face of a nut which is engaged by the wrench member.
  • lock nuts which are adapted for application to the threaded shank of a bolt in a nut and bolt assembly.
  • the expression nut and bolt assembly is intended to cover various cases where two or more members are secured together by means of a bolt, or the like, having an externally threaded shank which is engaged by a nut.
  • the bolt will be of conventional form having a head at one end, there are also cases in which the threaded shank is in the form of a tud secured in some way in one of the mem bers, and hence the expression bolt as used herein, is intended to cover also such cases.
  • lock nuts used hitherto rely for their action upon exerting an increased gripping force on the thread of the bolt and there are various examples of nuts in which this done by some form or other of distortion or displacement of the thread of the nut, so that at localised positions it has an increased grip on the threaded shank of the bolt such as to resist any tendency for the nut to slacken off during use when the nut and bolt assembly may be subject to vibration and other forces tending to loosen the nut.
  • the nut and bolt assembly is not efficient if, at the initial application, the nut is not tightened down a sufficient extent to achieve tension in the bolt shank, and it has become recognised in practice that, for maximum efliciency in bolt usage, the nut must 'be tightened down until a predetermined minimum tension is reached, and preferably exceeded, in the bolt shank.
  • Such lock nuts as referred to above, which act by applying an increased frictional grip, will require more operator-torque than a conventional nut when being used, as the operator has got to overcome the increased 3,479,714 Patented Nov. 25, 1969 resistance due to the locking means when tightening the nut down.
  • This extra torque required can frequently mislead an operator into thinking that the desired torque has been achieved to get tension in the bolt shank and thus bolted assemblies can be made with such lock nuts which are not tightened to a suflicient extent to achieve maximum efliciency in the bolted connection.
  • lock nuts are generally always more expensive than ordinary nuts.
  • the object of this invention is to provide new or improved apparatus for tightening a nut in a nut and bolt assembly and locking the nut on the bolt.
  • the apparatus may comprise a tool having a nut engaging wrench member, power means for rotating said wrench member to apply torque to a nut engaged therewith, :an impact member slidable in the tool in the axial direction of the wrench member, a deforming tool associated with the wrench member and positioned to engage the end face of the nut adjacent the free end of th bolt and power means for delivering an impact to said impact member to cause it to drive the deforming tool into engagement with said end face of the nut.
  • the apparatus may comprise a nutengaging wrench member, power means for rotating said wrench member, one or more impact members mounted for reciprocating movement radially of the axis of the wrench member and means for causing reciprocating movement of said impact member or members to cause it, or each one, to deliver one or more radial impacts to the wall of the nut.
  • a nut-engaging wrench member having mounted thereon one or more impact members, each of which is mounted in the wrench member for reciprocating sliding movement in directions radially of the nut axis, a rotary driving member for rotating the wrench member to apply rotary torque to the nut, clutch means for transmitting rotary motion from said driving member to the Wrench member, which clutch means is rendered inoperative when resistance to rotation of the wrench member reaches a predetermined value, and means whereby rotation of said driving member relative to said socket member causes reciprocating movement of the impact member or members.
  • FIGURE 1 is a part-sectioned view in side elevation of one form of tool for carrying out the invention.
  • FIGURE 2 is a sectioned view showing the end of the tool on enlarged scale.
  • FIGURE 3 is an end view looking from the right in FIGURE 2.
  • FIGURE 4 is a view of the end of the tool as in FIG- URE 1 with a nut engaged therein prior to application to a bolt.
  • FIGURE 5 is a view showing the. stage reached in tightening the nut prior to application of impact.
  • FIGURE 6 is a view showing the stage subsequent to FIGURE 5 when the impact has been delivered.
  • FIGURE 7 is a plan view of the nut after the locking operation has been performed.
  • FIGURE 8 is a section through the nut shown in FIG- URE 7.
  • FIGURE 9 is a diagrammatic section of the operative end of another form of tool for carrying out the method according to the invention.
  • FIGURE 10 is an end-on view of this tool.
  • the tool shown therein comprises a body which is in three main parts, there being a hand grip part 10, a centre part 11, and a nose part 12, and an air motor of generally known form, and not shown, is housed within the hand grip part 10 and has a driving shaft 13 which is drivingly connected to a spindle 14 extending axially through centre part 11 and nose part 12 of the gun and at its extreme end being formed with a portion of square cross section engaging slidably in an axial passage of corresponding cross section in a sleeve 16, which sleeve is rotatably mounted within the bore of the nose part 12 and is also capable of axial sliding movement therein.
  • the sleeve 17 has at its forward end an axial extension 17 of reduced cross section passing rotatably and slidably through an aperture in the end wall of the nose part of the tool and there is mounted on the outer end of this part 17 a wrench member 18 which is generally in the form of a sleeve detachably secured to the part 17 by a retaining spring ring 19.
  • the forward free end of the wrench member 18 is provided with a nut engaging socket 20 which may be of hexagonal form or, as shown, of twelve-sided form, and within the wrench member 18, to the rear of the nut engaging socket 20, there is a recess in which is mounted the deforming tool 21 held in position by a retaining spring 22.
  • the centre part 11 of the tool is of cylindrical form and provides a cylinder 23 within which there is mounted, for reciprocating sliding movement, a piston 24 formed integrally upon a tubular member 25 which is slidably mounted upon the spindle 14 and the piston 24 has a suitable sealing ring 26 engaging with the internal wall of the cylinder 23.
  • a block 27 Mounted within the centre part 11 and fixed therein, is a block 27 having an axial opening 28 extending therethrough and of larger diameter than the diameter of the tubular sleeve 25 which therefore passes freely through the block 27 and on its forward face the block 27 is provided with a raised annular sealing lip 29 which is engaged by a resilient sealing disc 30 fixed in the rearward end of the piston 24 when this piston is in its retracted position at the right hand of the cylinder 23, as shown in FIGURE 1.
  • Suitable sealing rings 31 are provided in the hand grip part and the nose part 12 of the tool around the tubular sleeve 25 so as to seal and make airtight the space within the cylinder 23 and also the air chamber 32 to the rear of the piston 24.
  • Air under pressure is admitted to the air chamber 32 from a suitable supply of compressed air which would be connected by a flexible hose to the opening 33 and likewise air under pressure can be admitted into the cylinder 23 through the opening 34 also adapted to be connected to a flexible hose for supplying air under pressure, whilst with suitable and generally known form of valve mechanism, not shown, the openings 33 and 34 can also act as exhaust ports to allow air to be exhausted from the chamber 32 and cylinder 23 at the appropriate times.
  • an exhaust port 35 communicating with an exhaust opening 36 which may be connected to a suitable tube or pipe for a purpose hereinafter referred to.
  • FIGURE 1 The following brief description of the operation of the tool is given with reference to FIGURE 1, although a more detailed description is given later herein with reference to FIGURES 2 to 8, which show in more detail the various stages of the operation of tightening a nut upon a bolt and locking the nut in position.
  • the air motor driving shaft 13 rotates the spindle 14 and this rotates the wrench member 18 to apply the desired torque to a nut engaged in the socket 20.
  • a predetermined torque generally determined by a known form of slipping clutch
  • the air control is operated to admit air. under pressure to the chamber 32 and this acts upon the face of the sealing disc until the pressure builds up to sulficient value to leak past the seal between sealing lip 29 and sealing disc 30, so that instantaneously the air pressure acts upon the whole of the operative surface of the piston 24, causing rapid acceleration of the piston from right to left in FIGURE 1, thus driving the tubular sleeve 25 forwardly so that the forward end 37 of this sleeve, which acts as the impact member strikes the rear face 38 of the sleeve 16 and thereby delivers an axial impact via sleeve 16 and wrench member 18 to the deforming tool 21 to apply the desired deformation, as hereinafter described, to the nut engaged in the socket 20.
  • the air controls are then operated to admit air under pressure via the port 34 to the other left hand face of the piston, as seen in FIGURE 1, to move the piston back to its original position at the right hand or rear end of cylinder 23.
  • the purpose of the exhaust port is to allow escape of air from the annular chamber 39 and prevent any build-up of air pressure which might prevent the sealing disc 30 from seating firm against the cylinder 29 when the piston is in its initial position at the one end of the cylinder.
  • the port 33 is acting as an exhaust port for exhaust of air from the chamber 32.
  • the nose part of the tool body is indicated at 12, the wrench member at 18, the nut-engaging socket at 20 and the deformation tool at 21 and it will be seen that the deformation tool 21 has three equiangularly spaced projections 40 around the periphery of the axial hole 41 in the tool.
  • This hole 41 communicates axially with a hole 42 in the part 17 and it will be seen that the forward end of the part 17 bears against an internal annular shoulder 43, in the wrench member 18, whereby the axial impact from impact member 37 is transmitted to the deformation tool 21.
  • FIGURES 4, 5 and 6, there is shown the stages in the application of a nut 44 to the threaded end 45 of a bolt 46 for holding together two members 47 and 48 in a nut and bolt assembly, and this assembly has a washer 49 placed about the bolt so as to be underneath the nut when this is applied.
  • FIGURE 4 shows the nut 44 engaged in the socket 20 of the wrench member 18 prior to application to the bolt.
  • the controls of the tool are operated to cause rotation of the wrench member 18, thus running the nut 44 down the threaded end 45 of the bolt until the stage of FIG- URE 5 is reached when the tightening of the nut has proceeded to the extent that the torque applied by the wrench member 18 reaches a predetermined magnitude upon which the known form of slipping clutch mechanism in the tool comes into operation and rotation of the wrench member 18 ceases so that an indication is obtained that a torque of predetermined magnitude has been reached and thus the predetermined minimum tension achieved (or exceeded) in the bolt shank.
  • the controls of the tool are further operated to operate the impact member 37 (FIG. 1) and deliver an impact to the annular shoulder 43 of the wrench member 18 and thus to the deformation tool 21 so that this advances relative to the nut 44 and the three projections 40 form indentations in the end face of the nut (see FIG. 6) as explained more clearly hereinafter with reference to FIGURES 7 and 8.
  • the socket 20 is of such axial depth that when the nut is engaged therein (see FIG. 4 and FIG. 5),
  • the one end face of the nut projects slightly beyond the end face 50 of the wrench member 18.
  • FIGURES 9 and 10 show diagrammatically part of another tool for carrying out the invention
  • the nut is shown at 110 engaged in the tool
  • the form of nut preferred for use with this tool has, as shown, a generally conventional nut body 110 of hexagonal form provided at one end with an axially extending collar 111 which is of substantially reduced wall thickness and is of circular cross-section.
  • the tool comprises a nut-engaging wrench member 112 which has an axial opening therethrough which is of hexagonal cross-section at its forward end 113 so as to have non-rotative engagement with the hexagonal body of the nut.
  • the wrench member 112 is mounted concentrically within an annual body 114 which has a rearwardly axially extending part 115 which is connected to, or forms part of, the rotary driving shaft of a power-operated tool which may for example be in the form of any of the generally known types of power-operated nut runners and needs no further description.
  • the wrench member 112 is provided with a plurality of impact members 116, each of which is mounted slidably in a radially extending passage 117 in the wrench member, such passage 117 having an enlarged part 118 at its radially outer end in which the enlarged head 119 of the impact member slidably engages, and each enlarged part 118 having located therein a coil spring 120 acting under the head 119 to urge the impact member 116 in the radially outwards direction.
  • each impact member 116 has an operative swaging end 121 of substantially conical form and when the nut is engaged in the wrench member these ends 121 are adapted to engage the reduced collar 111 of the nut.
  • the inner wall 122 of the annular body 114 of the driving member is formed at equi-angularly spaced positions with a number of radially inwardly projecting lobes or cam surfaces 123 and, as will be observed from FIGURE 10, each of the impact members 116 are urged by their springs 120 radially outwards so as to maintain the heads 119 of the impact members in engagement with the said inner wall 122 of the annular body of the driving member.
  • retaining plate 124 is provided to hold the wrench member in position.
  • the nut engaged in the wrench member is applied to the end of the bolt and the driving member 115 rotated to run the nut along the thread of the bolt and into engagement-with the abutment surface (eg the member 47 or Washer 49 in FIG. 4).
  • the abutment surface eg the member 47 or Washer 49 in FIG. 4
  • the lobes 123 will be in the position indicated in FIGURE and will act upon the heads of the impact members so as to form aclutch means to transmit the rotary driving torque from driving member 115 to the wrench member and thus cause rotation of the nut until such time as the torsional resistance to rotation of the nut reaches a predetermined value corresponding to a desired tension being achieved in the bolt shank, whereupon the wrench member 112 becomes stationary and the resistance of the springs 120 is overcome so that the driving member 115 continues to rotate about the axis of the nut relative to the stationary wrench member.
  • Apparatus for tightening and locking a nut on a bolt comprising a tool having a nut engaging wrench member, power means for rotating said wrench member to apply torque to a nut engaged therewith, an impact member slidable in the tool in the axial direction of the wrench member, a deforming tool associated with the wrench member and positioned to engage the end face of the nut adjacent the free end of the bolt and power means for delivering an impact to said impact member to cause it to drive the deforming tool into'engagement with said end face of the nut.
  • a tool according to claim 1 having a body, a spindle extending axially within said body, power means within the body drivingly connected to one end of said spindle for rotating same, the other end of said spindle being drivingly connected to the wrench member for rotating same and the wrench member being slidably axially relative to said other end of the spindle, the deforming tool being connected to the wrench member and the impact member being arranged within the body of the tool so as to deliver the impact to the wrench member.
  • the impact member comprises a piston reciprocably mounted in a cylinder formed in the tool body, the piston being slidable axially upon the said spindle and having extending from its forward face, which is the face nearest the wrench member, a tubular sleeve also slidable upon said spindle and constituting the impact member, there being suitable ports in the body of the tool for supply to, and exhaust from, the cylinder, of air under pressure for operating said piston.
  • a tool according to claim 3 in the form of a gun having a hand grip part in which is mounted an air-operated motor for rotating said spindle, a centre part which comprises the said cylinder and a forward nose part in the forward end of which there is rotatably and axially, slidably mounted a sleeve having a driving connection with the forward end of the spindle and being slidable relative thereto, the wrench member carrying the deforming tool being mounted on the forward end of said sleeve, the arrangement being that the impact member strikes the rearward end of said sleeve when the piston is operated.
  • a tool according to claim 4 wherein the wrench is in the form of a sleeve having an opening extending axially inwards from its forward end, the mouth of the opening being formed as a nut-engaging socket and the deforming tool being mounted in the said opening to the rear of said socket, said deforming tool having a plurality of forwardly extending projections adapted to deform the end face of a nut around the periphery of the threaded opening therein.
  • Apparatus for tightening and locking a nut on a bolt in the form of a tool comprising a nut-engaging wrench member, power means for rotating said Wrench member, one or more impact members mounted for reciprocating movement radially of the axis of the wrench member and means for causing reciprocating movement of said impact member or members to cause it, or each one, to deliver one or more radial impacts to the wall of the nut.
  • a tool according to claim 6 comprising a nut-engaging wrench member having mounted thereon one or more impact members, the or each of which is mounted in the wrench member for reciprocating sliding movement in directions radially of the nut axis, a rotary driving member for rotating the Wrench member to apply rotary torque to the nut, clutch means for transmitting rotary motion from said driving member to the Wrench member, which clutch means is rendered inoperative when resistance to rotation of the wrench member reaches a predetermined value, and means whereby rotation of said driving member relative to said socket member causes reciprocating movement of the impact member or members.
  • the wrench member is of cylindrical form and has an axial opening therethrough, the forward end of which forms a nutengaging socket, and the wrench member is mounted concentrically within an annular body (constituting the said driving member) having a rearwardly extending, power driven, shaft for rotating the annular body about the axis of the wrench member, the wrench member being provided with a plurality of impact members, slidably mounted in radially extending passages formed in the wrench member and the inner wall of the annular body having a plurality of inwardly projecting cam surfaces adapted to act upon the radially outward ends of the impact members to drive these radially inwardly when the annular body rotates relatively to the wrench member.
  • each of the impact members is urged outwardly by spring means and engagement between said cam surfaces and the impact members against the resistance of the spring means constitutes the clutch means for transmitting rotary motion from the annular body to the wrench member, the resistance of the spring means being overcome when the torque applied by the Wrench member to the nut reaches a predetermined value so as to permit relative rotation between the annular body and the wrench member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
US603910A 1965-12-24 1966-12-22 Apparatus for tightening and locking nuts on bolts Expired - Lifetime US3479714A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5485165 1965-12-24
GB24994/66A GB1161884A (en) 1965-12-24 1966-06-04 Tool for Tightening and Locking Nuts on Bolts.

Publications (1)

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US3479714A true US3479714A (en) 1969-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US603910A Expired - Lifetime US3479714A (en) 1965-12-24 1966-12-22 Apparatus for tightening and locking nuts on bolts

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US (1) US3479714A (xx)
BE (1) BE691732A (xx)
CH (1) CH467652A (xx)
DE (1) DE1603792A1 (xx)
ES (1) ES334863A1 (xx)
FR (1) FR1506064A (xx)
GB (1) GB1161884A (xx)
NL (1) NL6618146A (xx)
SE (1) SE338751B (xx)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593401A (en) * 1969-02-14 1971-07-20 Huck Mfg Co Eccentric tool
US3603132A (en) * 1969-10-13 1971-09-07 Masco Corp Tool for making locknut assemblies
US3646837A (en) * 1970-05-18 1972-03-07 Cooper Ind Inc Tool for applying and locking threaded fasteners
US3653802A (en) * 1970-11-18 1972-04-04 Lowell Warner Weiss Nut crimping tool
US3673662A (en) * 1970-08-12 1972-07-04 Gkn Screws Fasteners Ltd Apparatus for tightening and locking a nut on a bolt
US3689951A (en) * 1970-05-07 1972-09-12 Huck Mfg Co Fastener installation system
DE2210789A1 (de) * 1971-03-08 1972-09-14 Chicago Pneumatic Tool Co., New York, N.Y. (V.StA.) Pneumatisches Werkzeug mit kombiniertem Drehschrauber und Kröpfvorrichtung
US3722329A (en) * 1970-05-07 1973-03-27 Huck Mfg Co Fastener installation tool
US3758938A (en) * 1971-11-03 1973-09-18 Cooper Ind Inc Tool for applying and locking threaded fasteners and method
US3792632A (en) * 1971-09-14 1974-02-19 Huck Mfg Co Tool for torquing and crimping fasteners
US4507991A (en) * 1983-03-28 1985-04-02 Lemke Stuart H Apparatus for installing fasteners
US20060032369A1 (en) * 2004-08-13 2006-02-16 The Stanley Works Piston-piston rod retaining assembly for a hydraulic piston and cylinder unit
US20150165570A1 (en) * 2013-12-13 2015-06-18 United Technologies Corporation Crimping tool
US20150165534A1 (en) * 2013-12-13 2015-06-18 Ridge Tool Company Thread forming using an impact driver

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8512971D0 (en) * 1985-05-22 1985-06-26 Concentric Controls Ltd Thermostatic gas valve
US5452974A (en) 1993-03-04 1995-09-26 Air Industries Corporation Deformable locking fastener system and method of use
US5692419A (en) 1993-03-04 1997-12-02 Air Industries Corporation Deformable locking fastener system and method of use
CN113334321A (zh) * 2021-06-28 2021-09-03 中科航星科技有限公司 一种航空发动机轴螺母的装配方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1925714A (en) * 1931-01-08 1933-09-05 George W Crist Combination wrench and anvil
US2438744A (en) * 1944-02-12 1948-03-30 Crompton & Knowles Loom Works Tool for setting bushings or inserts
US2538343A (en) * 1946-10-25 1951-01-16 Jr Marshall Van Winkle Socket wrench head and staking device
US2943335A (en) * 1956-03-13 1960-07-05 American Cast Iron Pipe Co Electrically operated pneumatic apparatus for automatically assembling nuts and bolts
US2960082A (en) * 1958-12-31 1960-11-15 Gen Motors Corp Engine starting and protective shutdown system
US2974406A (en) * 1957-03-11 1961-03-14 Ingersoll Rand Co Pipe plug feeder and compound applicator
US3322005A (en) * 1939-12-29 1967-05-30 Neuschotz Robert Tool for installing expandable threaded element

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1925714A (en) * 1931-01-08 1933-09-05 George W Crist Combination wrench and anvil
US3322005A (en) * 1939-12-29 1967-05-30 Neuschotz Robert Tool for installing expandable threaded element
US2438744A (en) * 1944-02-12 1948-03-30 Crompton & Knowles Loom Works Tool for setting bushings or inserts
US2538343A (en) * 1946-10-25 1951-01-16 Jr Marshall Van Winkle Socket wrench head and staking device
US2943335A (en) * 1956-03-13 1960-07-05 American Cast Iron Pipe Co Electrically operated pneumatic apparatus for automatically assembling nuts and bolts
US2974406A (en) * 1957-03-11 1961-03-14 Ingersoll Rand Co Pipe plug feeder and compound applicator
US2960082A (en) * 1958-12-31 1960-11-15 Gen Motors Corp Engine starting and protective shutdown system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593401A (en) * 1969-02-14 1971-07-20 Huck Mfg Co Eccentric tool
US3603132A (en) * 1969-10-13 1971-09-07 Masco Corp Tool for making locknut assemblies
US3722329A (en) * 1970-05-07 1973-03-27 Huck Mfg Co Fastener installation tool
US3689951A (en) * 1970-05-07 1972-09-12 Huck Mfg Co Fastener installation system
US3646837A (en) * 1970-05-18 1972-03-07 Cooper Ind Inc Tool for applying and locking threaded fasteners
US3673662A (en) * 1970-08-12 1972-07-04 Gkn Screws Fasteners Ltd Apparatus for tightening and locking a nut on a bolt
US3653802A (en) * 1970-11-18 1972-04-04 Lowell Warner Weiss Nut crimping tool
US3747441A (en) * 1971-03-08 1973-07-24 Chicago Pneumatic Tool Co Pneumatic tool having combined nut running and crimping mechanism
DE2210789A1 (de) * 1971-03-08 1972-09-14 Chicago Pneumatic Tool Co., New York, N.Y. (V.StA.) Pneumatisches Werkzeug mit kombiniertem Drehschrauber und Kröpfvorrichtung
US3792632A (en) * 1971-09-14 1974-02-19 Huck Mfg Co Tool for torquing and crimping fasteners
US3758938A (en) * 1971-11-03 1973-09-18 Cooper Ind Inc Tool for applying and locking threaded fasteners and method
US4507991A (en) * 1983-03-28 1985-04-02 Lemke Stuart H Apparatus for installing fasteners
US20060032369A1 (en) * 2004-08-13 2006-02-16 The Stanley Works Piston-piston rod retaining assembly for a hydraulic piston and cylinder unit
US7322273B2 (en) 2004-08-13 2008-01-29 The Stanley Works Piston-piston rod retaining assembly for a hydraulic piston and cylinder unit
US20150165570A1 (en) * 2013-12-13 2015-06-18 United Technologies Corporation Crimping tool
US20150165534A1 (en) * 2013-12-13 2015-06-18 Ridge Tool Company Thread forming using an impact driver
US9339922B2 (en) * 2013-12-13 2016-05-17 United Technologies Corporation Crimping tool

Also Published As

Publication number Publication date
DE1603792A1 (de) 1971-04-29
GB1161884A (en) 1969-08-20
CH467652A (de) 1969-01-31
ES334863A1 (es) 1967-11-01
NL6618146A (xx) 1967-06-26
FR1506064A (fr) 1967-12-15
SE338751B (xx) 1971-09-13
BE691732A (xx) 1967-05-29

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