US1804843A - Liner puller - Google Patents

Liner puller Download PDF

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US1804843A
US1804843A US414073A US41407329A US1804843A US 1804843 A US1804843 A US 1804843A US 414073 A US414073 A US 414073A US 41407329 A US41407329 A US 41407329A US 1804843 A US1804843 A US 1804843A
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liner
shoes
arbor
spider
screw
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US414073A
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James J Santiago
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/062Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/53796Puller or pusher means, contained force multiplying operator
    • Y10T29/53848Puller or pusher means, contained force multiplying operator having screw operator
    • Y10T29/53857Central screw, work-engagers around screw
    • Y10T29/53861Work-engager arms along or parallel to screw
    • Y10T29/53874Pivotal grippers on screw

Definitions

  • This invention relates to tools and appliances commonly known as liner pullers and whose general function is to engage with and pull a sleeve or liner, such as the liner of a pump cylinder.
  • liner pullers commonly known as liner pullers and whose general function is to engage with and pull a sleeve or liner, such as the liner of a pump cylinder.
  • the invention may be used for other specific purposes, its nature and operation are best set out by description of it designed for and applied to the specific pur pose of pulling pump liners.
  • Figure 1 is a view showing a typical cylinder and 'liner in longitudinal section
  • Fig. 2 is a similar view showing the liner puller in such a position as it assumes on being inserted to or removed from the position of Fig. 1.
  • the longitudinal views of Figs. 1 and 2 are taken on such a line as is indicated by line 2 2 on Fig. 3;
  • Fig. 3 is a cross-section on line 3-3 of Fig. E3;
  • Fig. 4 is a detailed cross-section on line 4--4 of Fig. 1.
  • the liner puller illustrated and described here comprises a plurality of liner eng ging shoes 13, which may be of any suitable number and are here illustrated as three. These shoes are preferably elongate members having their outer liner engaging faces 13a curved to conform at least approximately, and preferably accurately, to the internal curvature of the liner to be pulled; and they are thus adapted to obtain flat pressure contact with the inner surface of the liner.y Although I prefer to depend primarily upon end engagement and direct endwise pressure to remove the liner, and thus provide each shoe with an end lug 14, it is within the scope of my invention vto provide the curved surfaces 13a of shoes 18 with teeth 13b, such as are illustrated in Fig. 2 only. By the use of such teeth, pulling engagement may be had with-the inner surface of the liner, either to help the pulling engagement of lugs 1li or even to the complete exclusion or disuse of those lugs.
  • Liner engaging shoes 13 are A pivotally mounted at 15b near their centers on sets/of toggles 15, of which there are four for each shoe. One end of each toggle is pivoted to a shoe and the other end of each toggle is pivoted at 15a to a traveling nut 16. From an inspection of the iiguresit will be seen, without the necessity of protracted description,
  • each shoe has two toggles which are pivotally connected with one travelingnut 16 and has two other toggles pivotally connected with the other traveling nutl16; and how, b moving the nuts 16 toward or away from eac other the angular relation of the toggles may center arbor 21, and the other on a righthanded thread 19 of that arbor; so that rotation of the arbor in either one direction or the other, the nuts may be advanced toward each other or moved away from each other to expand oiI contract the shoes.
  • an operating shaft 22 is connected to the outer end of arbor 21 .
  • This connection may be made in any suitable manner, but a convenient manner is by rovidin the operating shaft with an interna screw t rea-ded socket 23 which takes the outer screw-threaded end of arbor 21, a lock nut 24 or any other suitable means being employed for locking the socket non-rotatively on the screw-threaded arbor.
  • vOperating shaft 22 is of a suitable length for the len h 'of the liner, or the average lengths of liners, to be pulled; and for other lengths other operating shafts may be substituted.
  • the outer portion of the operating shaft is screw-threaded as shown at 25 an near its outer end it carries an operating nut 26 screw-threaded upon it.
  • This nut 26 may be provided with any suitable means for facilitating powerful rotation. For instance it may have a disk or flange 27 provided with radial sockets 28 for the insertion of a capstan bar or the like.
  • a spider 30 with legs 31 adapted to bear upon the cylinder end.
  • the legs 31 are illustrated in Fig. 1 as broken and contracted in length. In practice they are of such lengths, parallel with the axis of the tool and of the liner, that the liner may be completely pulled from the cylinder without coming into contactvwith the radial arms 32 of the spider.
  • the spider has a hub 33 with a bore 34 slidably passing the screw shaft 22, but the spider is not screw-threaded upon the shaft.
  • the shaft has a longitudinal splineway 35 and the spider hub 33 has a spline or key 36 sliding longitudinally in the splineway-see Fig. 4.
  • operating shaft 22 and arbor 21 may be rotated without being given any longitudinal movement.
  • the device After the liner is pulled from the c linder, the device is easily removed from t e liner by operations and reverse of those before described.
  • a liner puller or the like comprising a pluralit of liner engaging shoes, mounting means or said shoes including a rotatable arbor and means whereby rotation ofthe arbor in o posite directions will contract and expan the shoes, a screw-threaded o erating shaft forming an extension of said arbor, a cylinder engaging s ider through fwhich said operating shaft is s idable, and an operating nut screw-'threaded on the o erating shaft and bearing against-the spi er.
  • a liner puller or the like comprising a pluralit of liner engaging shoes, mounting means or said shoes includin a rotatable arbor and means whereby rotation of the arbor in opposite directions will contract and expand the shoes, a screw-threaded operating shaft forming an extension of said arbor, a splined cylinder engaging spider through which said operating shaft is slidable but not rotatable, and an operating nut screw-threaded on the operating shaft and bearingagainstthespider'.
  • a liner puller or the like comprising a pluralit of liner engaging shoes, mounting means or said shoes including a rotatable arbor and means whereby rotation of the arbor in opposite directions will contract and expand the shoes, a screw-threaded operating shaft forming an extension of saidarbor, a cylinder engaging spider through which the operating shaft extends, said spider being splined to the operating shaft to be non-rotating but slidable with reference thereto, and an operating nut screw-threaded ⁇ upon the operating shaft and bearing against the spider.
  • a. central arbor having right handed and left handed screw threads, a pair of traveling nuts screwthreadedl engagin respectively, with the right an left han ed threads, toggle links pivoted to ether and pivoted in pairs between said trave 'ng nuts, liner engaging shoes pivotally mounted at the inter-pivotal points of the toggle links, a screw-threaded operating shaft forming a continuation of the arbor and rotatively connected thereto, a cylinder enga 'ng spider through which the operating s aft passes, and an operating nut screwthreaded upon the o erating shaft and bearing against the spi er.
  • a 5 In a linerpuller or the like, a central arbor havin right handed and left handed screw threa s, a pair of traveling nuts screwthreadedly engaging, respectively, with the right and left handed threads, toggle links pivoted together and pivoted in pairs between said traveling nuts, liner engaging shoes pivotally mounted at the inter-pivotal points of the toggle links, a screw-threaded operating shaft forming a continuation of the arbor and rotatively connected thereto, a cylinder en aging spider through which the operatin 's aft passes slidably, the spider bein splin to the shaft so that the spider an shaft are relatively non-rotatable, and an operating nut screw-threaded upon the openating shaft and bearing against the spider.
  • a central arbor havin right handed and left handed screw threa s, a pair of traveling nuts screwthreadedly engaging, respectively, with the rightl and left handed threads,- toggle links pivoted together and pivoted in pairs between said traveling nuts, liner engagmg shoes plvotally mounted at the inter-pivotal points of the toggle links, a screw-threaded operating shaft forming a continuation of the arbor and rotatively connected thereto, a cylinder engaging spider through which the operatmg shaft passes slidably, the spider being spline to thel shaft so that the spider and shaft are relatively non-rotatable, and an operating nut screw-threaded upon the operating shaft and bearing against the spider; said liner engaging shoes eing elongate in the axlal d1- rection of the arbor and having curved outer liner engaging faces.
  • a liner puller or the like a plurality of elongate liner engaging shoes, means f or pivotally supporting the shoes in the1r medlal portions, means associated wlth the shoe supporting means for forcing the shoes away from each other and into ex anded liner engaging position, and means orexertlng endwise force on the shoes supportlng means for the purpose of pulling a liner engaged by the shoes.

Description

My l2 w33 J. J. SANTIAGO 1,804,843
LINER FULLER Filed Dec. 14, 1929 2 Sheets-Sheet l May 12, 1931 J. .1. SANTIAGO 1,804,843
LIN
d Dec. 14. 1929 2 Shee tttttt et 2 Patented May 12, 1931 UNITED STATES PATENT OFFICE JAMES J. SANTIAGO, 0F LOS ANGELES, CALIFORNIA, ASSIGNOB TO JOHN GRANT, OF LOS ANGELES, CALIFORNIA LINER FULLER Application led December 14, 1929. Serial No. 414,073.
This invention relates to tools and appliances commonly known as liner pullers and whose general function is to engage with and pull a sleeve or liner, such as the liner of a pump cylinder. Although, as will be readily understood, the invention may be used for other specific purposes, its nature and operation are best set out by description of it designed for and applied to the specific pur pose of pulling pump liners.
Several difficulties are encountered in pulling pump liners, especially where they have been long in place and perhaps rusted or corroded tightly. Some such liners are comparatively thin-walled, and, if engaged at the inner end only, may tend to buckle or otherwise deform so asto render removal very difficult. And, furthermore, such liners are usually placed in a cylinder casing having a ribbed wall, so that the liner is not in contact with the cylinder casing over its whole exterior surface but is only supported by spaced ribs. If a liner puller is of such a character as to exert localized outward pressure on the inner surface of the liner, the liner may be deformed and pressed outwardly into the spaces between ribs, which again makes the removal very difficult.
It is a general object of this invention to provide a liner puller which obviates these and other difficulties; and to provide a liner puller adjustable to liners of various sizes, and which, properly adjusted and applied to the liner, supports the liner against any possible deformation or collapse and ldoes not exert upon it any localized forces tending to deformation.
In the following detailed description, I
set out a preferred and illustrative form of liner puller embodying the invention, and from this detailed description an understanding of the invention itself may be had., It will be understood that the specific form herein set out is merely illustrative of the invention and is not intended to be a limitation upon it except as the invention is definitely limited by the appended claims.
In the drawings l Figure 1 is a view showing a typical cylinder and 'liner in longitudinal section, and
my liner puller in elevation and section, and 1n the position applied to the liner ready for the pulling operation.
Fig. 2 is a similar view showing the liner puller in such a position as it assumes on being inserted to or removed from the position of Fig. 1. The longitudinal views of Figs. 1 and 2 are taken on such a line as is indicated by line 2 2 on Fig. 3;
Fig. 3 is a cross-section on line 3-3 of Fig. E3; and
Fig. 4 is a detailed cross-section on line 4--4 of Fig. 1.
In the drawings let 10 designate a typical cylinder and 11a typical liner therein. The liner is shown supported in the cylinder on annular internal ribs 12. This spaced support of the liner in the cylinder, in some form or other, is prevalent in the use of liners.
The liner puller illustrated and described here comprises a plurality of liner eng ging shoes 13, which may be of any suitable number and are here illustrated as three. These shoes are preferably elongate members having their outer liner engaging faces 13a curved to conform at least approximately, and preferably accurately, to the internal curvature of the liner to be pulled; and they are thus adapted to obtain flat pressure contact with the inner surface of the liner.y Although I prefer to depend primarily upon end engagement and direct endwise pressure to remove the liner, and thus provide each shoe with an end lug 14, it is within the scope of my invention vto provide the curved surfaces 13a of shoes 18 with teeth 13b, such as are illustrated in Fig. 2 only. By the use of such teeth, pulling engagement may be had with-the inner surface of the liner, either to help the pulling engagement of lugs 1li or even to the complete exclusion or disuse of those lugs.
Liner engaging shoes 13 are A pivotally mounted at 15b near their centers on sets/of toggles 15, of which there are four for each shoe. One end of each toggle is pivoted to a shoe and the other end of each toggle is pivoted at 15a to a traveling nut 16. From an inspection of the iiguresit will be seen, without the necessity of protracted description,
how each shoe has two toggles which are pivotally connected with one travelingnut 16 and has two other toggles pivotally connected with the other traveling nutl16; and how, b moving the nuts 16 toward or away from eac other the angular relation of the toggles may center arbor 21, and the other on a righthanded thread 19 of that arbor; so that rotation of the arbor in either one direction or the other, the nuts may be advanced toward each other or moved away from each other to expand oiI contract the shoes.
To the outer end of arbor 21 an operating shaft 22 is connected. This connection may be made in any suitable manner, but a convenient manner is by rovidin the operating shaft with an interna screw t rea-ded socket 23 which takes the outer screw-threaded end of arbor 21, a lock nut 24 or any other suitable means being employed for locking the socket non-rotatively on the screw-threaded arbor. i
vOperating shaft 22 is of a suitable length for the len h 'of the liner, or the average lengths of liners, to be pulled; and for other lengths other operating shafts may be substituted. The outer portion of the operating shaft is screw-threaded as shown at 25 an near its outer end it carries an operating nut 26 screw-threaded upon it. This nut 26 may be provided with any suitable means for facilitating powerful rotation. For instance it may have a disk or flange 27 provided with radial sockets 28 for the insertion of a capstan bar or the like.
Between the operating nut 26 and the cylinder there is a spider 30 with legs 31 adapted to bear upon the cylinder end. The legs 31 are illustrated in Fig. 1 as broken and contracted in length. In practice they are of such lengths, parallel with the axis of the tool and of the liner, that the liner may be completely pulled from the cylinder without coming into contactvwith the radial arms 32 of the spider. l
The spider has a hub 33 with a bore 34 slidably passing the screw shaft 22, but the spider is not screw-threaded upon the shaft. The shaft has a longitudinal splineway 35 and the spider hub 33 has a spline or key 36 sliding longitudinally in the splineway-see Fig. 4. Thus, by meansof rotating the spider,
operating shaft 22 and arbor 21 may be rotated without being given any longitudinal movement.
The operation of the'device will now be easily understood from the foregoing descripltion. When first applied the parts are init e collapsed position such as shown in Fig. 2, so that the liner engaging shoes may easily pass' through the liner. The spider 32 `has been set a inst, or substantially against, the end ogn the cylinder, and the other parts are pushed lengthwise into the liner by pushin inwardly on the operating shaft 22 or on t e nut 26. Fig. 2 shows the parts collapsed and longitudinally inserted almost to the proper point for expansion.
After the parts have been longitudinally inserted as far as is shown in Fig. 1, then, before the nut 26 is set u against the spider, the spider 30 is rotated) in such a direction as to move traveling nuts 16 toward each other and thus expand the liner enga 'ng shoes to the position shown in Fi 1. onsiderable outward pressure mav exerted by the liner engaging shoes i so desired. Then the operating nut 26 is run u against the end thrust bearing 40 whic is located in the outer part of the spider, and continued forcible rotation of the'operating nut then pulls outwardly on the operating shaft and arbor and shoes, and thus forcibly pulls the liner out of the c linder. During this operation considera le longitudinal pressure, or end pressure, may have to be brought to bear upon the liner; and if the liner is thin or weak, the internal support given it by the long evenly ressing shoes will prevent its rupture or eformation.
After the liner is pulled from the c linder, the device is easily removed from t e liner by operations and reverse of those before described.
I claim:
1. A liner puller or the like comprising a pluralit of liner engaging shoes, mounting means or said shoes including a rotatable arbor and means whereby rotation ofthe arbor in o posite directions will contract and expan the shoes, a screw-threaded o erating shaft forming an extension of said arbor, a cylinder engaging s ider through fwhich said operating shaft is s idable, and an operating nut screw-'threaded on the o erating shaft and bearing against-the spi er.
2. A liner puller or the like comprising a pluralit of liner engaging shoes, mounting means or said shoes includin a rotatable arbor and means whereby rotation of the arbor in opposite directions will contract and expand the shoes, a screw-threaded operating shaft forming an extension of said arbor, a splined cylinder engaging spider through which said operating shaft is slidable but not rotatable, and an operating nut screw-threaded on the operating shaft and bearingagainstthespider'.
unsl
3. A liner puller or the like comprising a pluralit of liner engaging shoes, mounting means or said shoes including a rotatable arbor and means whereby rotation of the arbor in opposite directions will contract and expand the shoes, a screw-threaded operating shaft forming an extension of saidarbor, a cylinder engaging spider through which the operating shaft extends, said spider being splined to the operating shaft to be non-rotating but slidable with reference thereto, and an operating nut screw-threaded` upon the operating shaft and bearing against the spider.
4. In a liner puller or the like a. central arbor having right handed and left handed screw threads, a pair of traveling nuts screwthreadedl engagin respectively, with the right an left han ed threads, toggle links pivoted to ether and pivoted in pairs between said trave 'ng nuts, liner engaging shoes pivotally mounted at the inter-pivotal points of the toggle links, a screw-threaded operating shaft forming a continuation of the arbor and rotatively connected thereto, a cylinder enga 'ng spider through which the operating s aft passes, and an operating nut screwthreaded upon the o erating shaft and bearing against the spi er.
A 5. In a linerpuller or the like, a central arbor havin right handed and left handed screw threa s, a pair of traveling nuts screwthreadedly engaging, respectively, with the right and left handed threads, toggle links pivoted together and pivoted in pairs between said traveling nuts, liner engaging shoes pivotally mounted at the inter-pivotal points of the toggle links, a screw-threaded operating shaft forming a continuation of the arbor and rotatively connected thereto, a cylinder en aging spider through which the operatin 's aft passes slidably, the spider bein splin to the shaft so that the spider an shaft are relatively non-rotatable, and an operating nut screw-threaded upon the openating shaft and bearing against the spider.
6. In a liner puller or the like, a central arbor'having -right handed and left handed screw-threads, a pair of traveling nuts screwthreadedly engaging, respectively, with the right and left handed threads, toggle links pivoted together and pivoted in pairs between said traveling nuts, liner engaging shoes pivotall;r mounted at the inter-pivotal points of the toggle links, a screw-threaded operating shaft forming a continuation of the arbor and rotativell connected thereto, a cylinder engaging spidI r through which the operating shaft passes, and an operating nut screwthreaded upon the operating shaft and bearing a inst the spi er; said liner engagin shoes ing elongate in the axial direction o the arbor and having curved outer liner engaging faces.
7. In a liner puller or the like, a central arbor havin right handed and left handed screw threa s, a pair of traveling nuts screwthreadedly engaging, respectively, with the rightl and left handed threads,- toggle links pivoted together and pivoted in pairs between said traveling nuts, liner engagmg shoes plvotally mounted at the inter-pivotal points of the toggle links, a screw-threaded operating shaft forming a continuation of the arbor and rotatively connected thereto, a cylinder engaging spider through which the operatmg shaft passes slidably, the spider being spline to thel shaft so that the spider and shaft are relatively non-rotatable, and an operating nut screw-threaded upon the operating shaft and bearing against the spider; said liner engaging shoes eing elongate in the axlal d1- rection of the arbor and having curved outer liner engaging faces.
8. In a liner puller or the like, a plurality of elongate liner engaging shoes, means f or pivotally supporting the shoes in the1r medlal portions, means associated wlth the shoe supporting means for forcing the shoes away from each other and into ex anded liner engaging position, and means orexertlng endwise force on the shoes supportlng means for the purpose of pulling a liner engaged by the shoes.' s
In witness that I claim the foregoing I have hereunto subscribed my, name this 9 day of December 1929.
JAMES J. SANTIAGO.
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521065A (en) * 1946-04-23 1950-09-05 Henry F Kempton Anchor bolt
US2583880A (en) * 1946-01-07 1952-01-29 Gisholt Machine Co Clamp
US2610888A (en) * 1946-11-14 1952-09-16 Pipe Line Construction And Dri Pipe handling mechanism
US2778671A (en) * 1952-04-24 1957-01-22 Gladstone H Langston Pipe handling device
US2840894A (en) * 1953-07-27 1958-07-01 Gulf Research Development Co Valve seat replacement tool
US3168444A (en) * 1956-09-27 1965-02-02 Gen Electric Co Ltd Servicing apparatus for gas cooled thermal reactors
US4413538A (en) * 1981-03-17 1983-11-08 Spar Aerospace Limited Universal service tool
US4500078A (en) * 1983-01-03 1985-02-19 Brennan Gerald J Chimney flue insertion apparatus
US4694569A (en) * 1986-04-02 1987-09-22 Colvell William F Bearing extractor
US4724594A (en) * 1986-03-26 1988-02-16 Westinghouse Electric Corp. Apparatus for adjusting the elevation of fuel rods in a nuclear reactor fuel assembly
US4742674A (en) * 1986-10-13 1988-05-10 Zinser Textilmaschinen Gmbh Bobbin doffing and donning apparatus
US4781519A (en) * 1986-02-19 1988-11-01 Monfort Robotics, Inc. End effector tools
US6311380B1 (en) * 1999-12-13 2001-11-06 Yu-Lin Chen Device for mounting bearings onto a shaft
US20020185879A1 (en) * 2001-06-08 2002-12-12 Edwards Grady Odell Cam-action pipe puller
US6511113B1 (en) * 1999-09-09 2003-01-28 Timothy J. Kulage Self-adjusting connector and related methods of connecting
US20050217096A1 (en) * 2004-04-06 2005-10-06 Chan Joanne T Seal removal tool
US20100257716A1 (en) * 2009-04-14 2010-10-14 Peet C Alan Apparatus and Method for Removing a Dry Tube Assembly From a Nuclear Reactor Pressure Vessel
US20110318159A1 (en) * 2010-06-29 2011-12-29 Mikkel Verner Krogh Arrangement for Lifting a Tower Wall Portion of a Wind Turbine and Method for Lifting a Tower Wall Portion of a Wind Turbine
FR2975323A1 (en) * 2011-05-20 2012-11-23 Messier Bugatti Dowty Device for extracting self lubricating ring fixed in bore of landing gear box of aircraft, has expandable member comprising bits, where each of bits has transom forming axial stop for side face of ring when member is in deployed position
US20140097393A1 (en) * 2012-10-05 2014-04-10 Ted Joseph Green Drop tube tool
US20170356338A1 (en) * 2016-06-08 2017-12-14 General Electric Company Installation tool and system for assembling a gas turbine combustor
US10472212B1 (en) * 2018-12-13 2019-11-12 John Keisler Pipe lifting assembly

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2583880A (en) * 1946-01-07 1952-01-29 Gisholt Machine Co Clamp
US2521065A (en) * 1946-04-23 1950-09-05 Henry F Kempton Anchor bolt
US2610888A (en) * 1946-11-14 1952-09-16 Pipe Line Construction And Dri Pipe handling mechanism
US2778671A (en) * 1952-04-24 1957-01-22 Gladstone H Langston Pipe handling device
US2840894A (en) * 1953-07-27 1958-07-01 Gulf Research Development Co Valve seat replacement tool
US3168444A (en) * 1956-09-27 1965-02-02 Gen Electric Co Ltd Servicing apparatus for gas cooled thermal reactors
US4413538A (en) * 1981-03-17 1983-11-08 Spar Aerospace Limited Universal service tool
US4500078A (en) * 1983-01-03 1985-02-19 Brennan Gerald J Chimney flue insertion apparatus
US4781519A (en) * 1986-02-19 1988-11-01 Monfort Robotics, Inc. End effector tools
US4724594A (en) * 1986-03-26 1988-02-16 Westinghouse Electric Corp. Apparatus for adjusting the elevation of fuel rods in a nuclear reactor fuel assembly
US4694569A (en) * 1986-04-02 1987-09-22 Colvell William F Bearing extractor
US4742674A (en) * 1986-10-13 1988-05-10 Zinser Textilmaschinen Gmbh Bobbin doffing and donning apparatus
US6511113B1 (en) * 1999-09-09 2003-01-28 Timothy J. Kulage Self-adjusting connector and related methods of connecting
US6311380B1 (en) * 1999-12-13 2001-11-06 Yu-Lin Chen Device for mounting bearings onto a shaft
US20020185879A1 (en) * 2001-06-08 2002-12-12 Edwards Grady Odell Cam-action pipe puller
US7232167B2 (en) * 2001-06-08 2007-06-19 Grady Odell Edwards Cam-action pipe puller
US20050217096A1 (en) * 2004-04-06 2005-10-06 Chan Joanne T Seal removal tool
US7146697B2 (en) 2004-04-06 2006-12-12 Honeywell International, Inc. Seal removal tool
US20100257716A1 (en) * 2009-04-14 2010-10-14 Peet C Alan Apparatus and Method for Removing a Dry Tube Assembly From a Nuclear Reactor Pressure Vessel
US8631563B2 (en) * 2009-04-14 2014-01-21 Ge-Hitachi Nuclear Energy Americas Llc Apparatus and method for removing a dry tube assembly from a nuclear reactor pressure vessel
US20110318159A1 (en) * 2010-06-29 2011-12-29 Mikkel Verner Krogh Arrangement for Lifting a Tower Wall Portion of a Wind Turbine and Method for Lifting a Tower Wall Portion of a Wind Turbine
US8764082B2 (en) * 2010-06-29 2014-07-01 Siemens Aktiengesellschaft Arrangement for lifting a tower wall portion of a wind turbine and method for lifting a tower wall portion of a wind turbine
FR2975323A1 (en) * 2011-05-20 2012-11-23 Messier Bugatti Dowty Device for extracting self lubricating ring fixed in bore of landing gear box of aircraft, has expandable member comprising bits, where each of bits has transom forming axial stop for side face of ring when member is in deployed position
US20140097393A1 (en) * 2012-10-05 2014-04-10 Ted Joseph Green Drop tube tool
US20170356338A1 (en) * 2016-06-08 2017-12-14 General Electric Company Installation tool and system for assembling a gas turbine combustor
US10472212B1 (en) * 2018-12-13 2019-11-12 John Keisler Pipe lifting assembly

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