US2613983A - Sleeve pulling device - Google Patents

Sleeve pulling device Download PDF

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Publication number
US2613983A
US2613983A US775604A US77560447A US2613983A US 2613983 A US2613983 A US 2613983A US 775604 A US775604 A US 775604A US 77560447 A US77560447 A US 77560447A US 2613983 A US2613983 A US 2613983A
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Prior art keywords
sleeve
shank
jaws
yoke
jaw
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Expired - Lifetime
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US775604A
Inventor
Raymond G Knudsen
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Snap On Inc
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Snap On Tools Corp
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Publication date
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Priority to US775604A priority Critical patent/US2613983A/en
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Publication of US2613983A publication Critical patent/US2613983A/en
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Classifications

    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand 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
    • B25B27/06—Hand 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
    • B25B27/062—Hand 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
    • 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand 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
    • B25B27/06—Hand 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
    • 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
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53848—Puller or pusher means, contained force multiplying operator having screw operator
    • Y10T29/53857—Central screw, work-engagers around screw
    • Y10T29/53861—Work-engager arms along or parallel to screw
    • Y10T29/53874—Pivotal grippers on screw
    • 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
    • Y10T29/53991—Work gripper, anvil, or element

Definitions

  • This invention relates to pullers and more particularly'to cylinder sleeve pullers, although certain features thereof may be employed with equal advantage for other purposes.
  • Figure 4' is a bottom plan view' taken-substanof improved pullers having remotely adjustable tially along line ufe i I *f' engaging jaws to enable their retraction and ex-
  • the structure selected forillustration is not pansion relative to the rim of sleeves to effect intended to serve as alimitation upe tthefse p engagement therewith.
  • a Sleeve Dune/r715 provided which, infof devices of the charact me ti d, stance, embodies a central rod" l'llterminating Another object is to provide an improved cylinwnwar ly in a ll r 5 h v a I W-h der sleeve puller having adjustable jaws that are c et 16' formed integral therewith? 'I'he trilink actuated for remote adjustment.
  • D' p k t' l5 haSJi t is ins a ce.
  • Still another object is to provide a sleeve puller ansularly and elumi.Stem?v 1 5 1 5 ⁇ ears 'that having jaw adjusting expedients effective through are t s ottedto provide 'furcations ;
  • a further object is to provide an improved tend through the Spaced 'iu i 1.,p'uller tool having adjustable jaws mounted on Iii-20, and 2
  • a still further object is to provide a puller tool and .outwal'dly Offset .Pprtions whichltermi with adjustable jaws mounted on parallel links e' v l v I ih 1001151130 ceive that are spring impelled to assume an extreme P 28 providedlthrouhvfurcaitidfis329%:151"? retracted position with accessible screw adjust- Vided in a plurality f l 1 Z-Y.
  • h' ment means for spreading the jaws against the instance three- The l F-" T a P normal urge of th i jecting lips 34 which extend' 'o'utwardly beyond Still a further object is to provide parallel jaw the er jaw edges 35 0f the l .”3 jmounts for a sleeve puller to enable the adjustto engage t lower Peripheral 'eif r 6f ment thereof from a t t mount for the sleeve H.
  • Figure 1 is a front sectional view in elevation c nnecti n with an upper ri g lar bracket 38' of a cylinder bore, sleeve, and pulling tool emby means of pins 39-40.
  • the h b c et 38 has a tubular th eaded Shank jaws being shown in their fully retracted posi- 4! formed integral therewith eXtend pw tion. therefrom.
  • Figure 2 is a plan view of the device shown in terminates in a solid threaded shank 42 to which Figure 1, parts thereof being shown in section any suitable actuator or power puller may be to clarify the showing.
  • Figure 3 is a front sectional view in elevation t engine block in the process of vi the sleeve II from the cylinder bore I 0.
  • the rod I4 is slidably guided in the tubular shank H to adjust: the jaws 3.I-32--33' as will appear more fully hereinafter.
  • the axial rod I4 has a tension coil spring 43 disposed thereover between the upper triangular bracket 38 and a collar 44 fitted to the rod I4 proximate to the lower end I5 thereof.
  • the spring 43 is anchored to the collar 44 and serves to impel the shaft I4 upwardly relative to the upper triangular bracket 38 tov retract the jaws 3I3233 inwardly as shown in Figure 1. This will serve to displace the rod I4 upwardly which is provided with: a transverse pin 45 that projects through a vertical slot 46 provided in the threaded shank 4 I. A knurled nut. 4.!
  • the shank M threadablyengages the shank M to displace the transpin 45 downwardly and thus spread the jaws- 3I-32-'33 outwardly against the urge of the tension spring 43.
  • the knurled nut 41 retains the jaws 3.I--3'233. in their adjusted expanded position. against” retraction
  • the spread of the jaws 3:I--32-33 canbe' adjusted from above.
  • the engine block I2 an initial collapsing thereof to facilitate their insertions downwardly through the cylinder sleeve II and thereafter eiTect the spread of the jaws- 3I-32-33 so that their vertical edges 35 thereof engage the. internal wall of the cylinder sleeve II? with the jaw lips 34 projecting below the.
  • a grapple comprising an elongated shank, a first yoke onsaid shank, a plurality of pairs of lovers or equal length spaced around said yoke and individually pivoted to said yoke at one end,
  • a grapple comprising an elongated shank, av first. yoke on said shank, a plurality of pairs of levers of equal length spaced around said yoke and individually pivoted to said yoke at one end, a jaw for each.
  • pair 01 levers means pivoting the other end of each lever of a pair to its jaw so that said-.leversof a pair will be positioned in parallel relation and in a plane including the axis of said shank and extending radially thereof, a second yoke on said shank, links each pivoted to said sec- 0nd yoke, and one of said jaws, and threaded colla-r means on said shank for relatively moving said yokes for moving said jaws toward or, away from said shank.
  • a grapple comprising an elongated shank, a first yoke on said shank, a plurality of pairs of levers of equal length. spaced around said, yoke and individually pivoted to said yokeat one end, a jaw for each pair of levers, means pivoting the other end. of each lever of a pair toits. jaw so that said levers of a pair will be positioned in parallel relation and in a plane including the axis of said. shank and extending radially thereof, a second yoke on. said shank, links each pivoted, to said second yoke and, one'of said. jaws, spring means for urging one of said. yokes in onev direction along said shank to. relatively collapse said jaws. to-their minimum spread, andthreaded collar means. on. said shank for relatively: moving said yokes against the urge of said spring means for moving said jaws away from saidshank RAYMOND G. KNUDSEN.

Description

Oct. 14, 1952 R. G KNUDSYEN 2,613,983
SLEEVE PULLING DEVICE Filed Sept. 25, 1947 Patented Oct. 14, 1952 Raymond G. Knudsen, Kenosha, Wis., assignor to 7 Snap-On Tools Corporation, Kcnosha, Wis., a corporation of Delaware Application September 23, 1947, Serial No. 775,604
3 Claims.
1 This invention relates to pullers and more particularly'to cylinder sleeve pullers, although certain features thereof may be employed with equal advantage for other purposes.
taken substantially along line III-III of Figure 2 of a cylinder bore, sleeve, and pulling'tool shown in Figure 1 with the jaws .in an expandedadjusted position engaging the lower rim of a sleeve.
It contemplates more especially the provision 5 Figure 4' is a bottom plan view' taken-substanof improved pullers having remotely adjustable tially along line ufe i I *f' engaging jaws to enable their retraction and ex- The structure selected forillustration is not pansion relative to the rim of sleeves to effect intended to serve as alimitation upe tthefse p engagement therewith. or teachings of the invention, but is'merely'illus- Sleeve pullers are becoming increasingly poputrative thereofr There may be :considerable lar owing to the fact that many internal comvariations and adaptations of all or part ofthe 'bustion engines now resort to cylinder sleeves teachings depending 1113011 the dictates-0110mas a liner rather than bore precision cylinders mereial preeiieel 7 3 i directly in the engine block. In rebuilding en- The pr t m m n mpr s s a" yl ngines having cylinder sleeve liners, it is only der or engine block l0 havinga somewhat-larger necessary to remove the cylinder sleeves that are Cylinder Sleeve II that is D s e t erein 'to press-fitted, in the cylinder bo s, a t i i terminate somewhat below the engine block lZ'Tto eadily accomplished with a power puller that 'present a w w d y tapered lower p p a is effective in'engaging the inner or lower periph- Sleeve edge '3 W h i e b e 130' 'efiee t e eral edge of the sleeve prior to exerting a power r ov l of the Sleeve H as'willappear more fully or mechanical pull thereon. hereinafter.
One object of the present i e ti i t i In order to remove the sleeve H from thebo're plify the construction and improve the operation W, a Sleeve Dune/r715 provided which, infof devices of the charact me ti d, stance, embodies a central rod" l'llterminating Another object is to provide an improved cylinwnwar ly in a ll r 5 h v a I W-h der sleeve puller having adjustable jaws that are c et 16' formed integral therewith? 'I'he trilink actuated for remote adjustment. D' p k t' l5 haSJi t is ins a ce. thrfiB Still another object is to provide a sleeve puller ansularly and elumi.Stem?v 1 5 1 5 {ears 'that having jaw adjusting expedients effective through are t s ottedto provide 'furcations ;|'l"-f'lB.
.multiple links to enable jaw retraction and exl92ll, and 2l 22 fto p o y ce ve'fl n'ks pension from an accessible position. -24- therebetweem f f fi A further object is to provide an improved tend through the Spaced 'iu i 1.,p'uller tool having adjustable jaws mounted on Iii-20, and 2| 22'tdpiv0tal1y c'onnectthe-links "parallel links that are spring impelled to normally 4- 25 thereto".
assume an extreme retracted position. h l s 23-24'25 terminate in downward- A still further object is to provide a puller tool and .outwal'dly Offset .Pprtions whichltermi with adjustable jaws mounted on parallel links e' v l v I ih 1001151130 ceive that are spring impelled to assume an extreme P 28 providedlthrouhvfurcaitidfis329%:151"? retracted position with accessible screw adjust- Vided in a plurality f l 1 Z-Y. 3; h' ment means for spreading the jaws against the instance three- The l F-" T a P normal urge of th i jecting lips 34 which extend' 'o'utwardly beyond Still a further object is to provide parallel jaw the er jaw edges 35 0f the l ."3 jmounts for a sleeve puller to enable the adjustto engage t lower Peripheral 'eif r 6f ment thereof from a t t mount for the sleeve H. In this "position, the verticafjaw tracting or spreading the jaws for removing edges 35 engage the interior cylinder wall of the cylinder sleeves from their press-fitted engine Sleeve H When the jaws have been bores, expanded to the limit of the interior diameter Other objects and advantages will appear from of the sleeve The laws 3 each have" the following description of an illustrative emel l ks 36-31 of equal length pivotally bodiment of th r nt invention extended therefrom as at 38-39, respectively, to
In the drawing: project upwardly for corresponding pivotable Figure 1 is a front sectional view in elevation c nnecti n with an upper ri g lar bracket 38' of a cylinder bore, sleeve, and pulling tool emby means of pins 39-40. bodying features of the present invention, the h b c et 38 has a tubular th eaded Shank jaws being shown in their fully retracted posi- 4! formed integral therewith eXtend pw tion. therefrom. The threaded tubular shank 4| Figure 2 is a plan view of the device shown in terminates in a solid threaded shank 42 to which Figure 1, parts thereof being shown in section any suitable actuator or power puller may be to clarify the showing. attached to exert an upward force relative to Figure 3 is a front sectional view in elevation t engine block in the process of vi the sleeve II from the cylinder bore I 0. I The rod I4 is slidably guided in the tubular shank H to adjust: the jaws 3.I-32--33' as will appear more fully hereinafter.
In order to adjust the jaws 3 I3233 upwardly and outwardly, the axial rod I4 has a tension coil spring 43 disposed thereover between the upper triangular bracket 38 and a collar 44 fitted to the rod I4 proximate to the lower end I5 thereof. The spring 43 is anchored to the collar 44 and serves to impel the shaft I4 upwardly relative to the upper triangular bracket 38 tov retract the jaws 3I3233 inwardly as shown in Figure 1. This will serve to displace the rod I4 upwardly which is provided with: a transverse pin 45 that projects through a vertical slot 46 provided in the threaded shank 4 I. A knurled nut. 4.! threadablyengages the shank M to displace the transpin 45 downwardly and thus spread the jaws- 3I-32-'33 outwardly against the urge of the tension spring 43. The knurled nut 41 retains the jaws 3.I--3'233. in their adjusted expanded position. against" retraction As a result, the spread of the jaws 3:I--32-33 canbe' adjusted from above. the engine block I2 an initial collapsing thereof to facilitate their insertions downwardly through the cylinder sleeve II and thereafter eiTect the spread of the jaws- 3I-32-33 so that their vertical edges 35 thereof engage the. internal wall of the cylinder sleeve II? with the jaw lips 34 projecting below the. lower peripheral sleeve edge I3. The jaw lips 34 effect upper engagement with the lower sleeve edge 13 responsive to effecting an upward pull on the. shank 42' for upper displacement with the sleeve I I. Any suitable mechanical or hydraulic actuator may be utilized for this purpose to operate relative to the engine block I2- to displace the? shank 42 upwardly together with the laws. 34 42 -33" and the sleeve II in the process of pulling. the latter from the cylinder bore I 0.
While: I have illustrated and described a preembodiment of this invention, it must be understoodthat the invention is capable of conslderabl'e variation and modification without. de-
parting from the spirit of the invention. I, there- ,me, do not wish to be limited" to the precise details olconstruetion' set forth, but desire to avail myself of such variations and modifications as come: within the scope of the appended claims. I claim 1. A grapple comprising an elongated shank, a first yoke onsaid shank, a plurality of pairs of lovers or equal length spaced around said yoke and individually pivoted to said yoke at one end,
-a law for each pair of levers; means pivoting the "other end of each lover of a pair to its jaw so that said levers of. a pair will be positioned in parallel relation and in a plane including the axis said second yoke and one 01 saidjaws, and means for relatively moving said yokes for moving said jaws toward or away from said shank.
2. A grapple comprising an elongated shank, av first. yoke on said shank, a plurality of pairs of levers of equal length spaced around said yoke and individually pivoted to said yoke at one end, a jaw for each. pair 01 levers, means pivoting the other end of each lever of a pair to its jaw so that said-.leversof a pair will be positioned in parallel relation and in a plane including the axis of said shank and extending radially thereof, a second yoke on said shank, links each pivoted to said sec- 0nd yoke, and one of said jaws, and threaded colla-r means on said shank for relatively moving said yokes for moving said jaws toward or, away from said shank.
3;. A grapple comprising an elongated shank, a first yoke on said shank, a plurality of pairs of levers of equal length. spaced around said, yoke and individually pivoted to said yokeat one end, a jaw for each pair of levers, means pivoting the other end. of each lever of a pair toits. jaw so that said levers of a pair will be positioned in parallel relation and in a plane including the axis of said. shank and extending radially thereof, a second yoke on. said shank, links each pivoted, to said second yoke and, one'of said. jaws, spring means for urging one of said. yokes in onev direction along said shank to. relatively collapse said jaws. to-their minimum spread, andthreaded collar means. on. said shank for relatively: moving said yokes against the urge of said spring means for moving said jaws away from saidshank RAYMOND G. KNUDSEN.
REFERENCES CITED Thefollowing references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 542,152 Elliott Jiily.2,,1895 1,395,140 Reed Oct. 25, 1921 1,430,702 Troutman Oct. 3, 1922 1,473,075 Bates Nov. 6, 1923 1,536,496 Hill May 5,1925 1,862,793 Kulp June 14, 1932 2,257,318 Wilborn Sept. 30, 1941 2,386,034 Church Oct. 2,, 1945 2,370,482 Morgan Feb. 27, 1945 FOREIGN PATENTS Number Country Date 23,207 Great. Britain Oct. 19, 1906 295,828 Great Britain Aug. 23, 1928
US775604A 1947-09-23 1947-09-23 Sleeve pulling device Expired - Lifetime US2613983A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687226A (en) * 1952-04-26 1954-08-24 Jack N Garrett Lift truck attachment for handling hollow bodies
US2889617A (en) * 1955-12-02 1959-06-09 Leo C Mitcham Liner puller
US2898944A (en) * 1957-02-13 1959-08-11 Automatic Specialties Corp Thread protector
US2923055A (en) * 1955-04-27 1960-02-02 Jersey Prod Res Co Apparatus for changing pump liners
US3003363A (en) * 1956-08-31 1961-10-10 Fmc Corp Apparatus for turning a steering wheel from a remote position
US3101855A (en) * 1960-12-07 1963-08-27 Yuen Yat Chuen Drinking straw and container
US3128118A (en) * 1962-06-14 1964-04-07 Anderson Clayton & Company Coil stacker head
US3159218A (en) * 1958-04-22 1964-12-01 Shaffer Tool Works Underwater drilling method
US3365844A (en) * 1965-12-08 1968-01-30 Norton Co Abrasive belt handling device
US3469298A (en) * 1966-10-04 1969-09-30 Atlas Pipe Popper Corp Pipe pulling apparatus
US3727490A (en) * 1971-08-05 1973-04-17 K D Mfg Co Disc brake pad spreader
US4006521A (en) * 1975-06-02 1977-02-08 Pedone John A Pipe remover
US7198311B1 (en) * 2004-10-14 2007-04-03 Potts David A Elevator for pipe
US20100122921A1 (en) * 2008-11-20 2010-05-20 Messier-Bugatti Stabilizer for stabilizing the disks of a heat pack, in particular when the heat pack is packaged in a container
US20150165704A1 (en) * 2012-06-06 2015-06-18 Michelin Recherche Et Technique, S.A. Device for supporting a raw rubber tire for the manufacture of a pneumatic tire
US20150246436A1 (en) * 2014-03-03 2015-09-03 Puller Structure Puller structure
US10472212B1 (en) * 2018-12-13 2019-11-12 John Keisler Pipe lifting assembly

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US542152A (en) * 1895-07-02 Reamer for use in mining
GB190623207A (en) * 1906-10-19 1907-05-09 Friedrich Witt Device for Lifting Up Defective Valve Seats Out of Valve Casings.
US1395140A (en) * 1920-08-04 1921-10-25 Albert F Reed Piston-ring tool
US1430702A (en) * 1921-07-01 1922-10-03 George W Troutman Piston-ring spreader
US1473075A (en) * 1922-04-15 1923-11-06 Walter A Bates Bearing-race remover
US1536496A (en) * 1921-05-26 1925-05-05 Frederick S Hill Piston-ring compressor
GB295828A (en) * 1927-08-15 1928-08-23 Joseph Gallagher A device for extracting valve seatings, sleeves, bushes or the like from their sockets
US1862793A (en) * 1930-05-29 1932-06-14 Harry W Kulp Valve-spring lifter
US2257318A (en) * 1939-09-15 1941-09-30 Joyce W Wilborn Sleeve extractor
US2370482A (en) * 1942-10-07 1945-02-27 Morgan Construction Co Wire-block stripper
US2386034A (en) * 1942-08-03 1945-10-02 Monarch Rubber Company Manufacture of solid rubber tires

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US542152A (en) * 1895-07-02 Reamer for use in mining
GB190623207A (en) * 1906-10-19 1907-05-09 Friedrich Witt Device for Lifting Up Defective Valve Seats Out of Valve Casings.
US1395140A (en) * 1920-08-04 1921-10-25 Albert F Reed Piston-ring tool
US1536496A (en) * 1921-05-26 1925-05-05 Frederick S Hill Piston-ring compressor
US1430702A (en) * 1921-07-01 1922-10-03 George W Troutman Piston-ring spreader
US1473075A (en) * 1922-04-15 1923-11-06 Walter A Bates Bearing-race remover
GB295828A (en) * 1927-08-15 1928-08-23 Joseph Gallagher A device for extracting valve seatings, sleeves, bushes or the like from their sockets
US1862793A (en) * 1930-05-29 1932-06-14 Harry W Kulp Valve-spring lifter
US2257318A (en) * 1939-09-15 1941-09-30 Joyce W Wilborn Sleeve extractor
US2386034A (en) * 1942-08-03 1945-10-02 Monarch Rubber Company Manufacture of solid rubber tires
US2370482A (en) * 1942-10-07 1945-02-27 Morgan Construction Co Wire-block stripper

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2687226A (en) * 1952-04-26 1954-08-24 Jack N Garrett Lift truck attachment for handling hollow bodies
US2923055A (en) * 1955-04-27 1960-02-02 Jersey Prod Res Co Apparatus for changing pump liners
US2889617A (en) * 1955-12-02 1959-06-09 Leo C Mitcham Liner puller
US3003363A (en) * 1956-08-31 1961-10-10 Fmc Corp Apparatus for turning a steering wheel from a remote position
US2898944A (en) * 1957-02-13 1959-08-11 Automatic Specialties Corp Thread protector
US3159218A (en) * 1958-04-22 1964-12-01 Shaffer Tool Works Underwater drilling method
US3101855A (en) * 1960-12-07 1963-08-27 Yuen Yat Chuen Drinking straw and container
US3128118A (en) * 1962-06-14 1964-04-07 Anderson Clayton & Company Coil stacker head
US3365844A (en) * 1965-12-08 1968-01-30 Norton Co Abrasive belt handling device
US3469298A (en) * 1966-10-04 1969-09-30 Atlas Pipe Popper Corp Pipe pulling apparatus
US3727490A (en) * 1971-08-05 1973-04-17 K D Mfg Co Disc brake pad spreader
US4006521A (en) * 1975-06-02 1977-02-08 Pedone John A Pipe remover
US7198311B1 (en) * 2004-10-14 2007-04-03 Potts David A Elevator for pipe
US20100122921A1 (en) * 2008-11-20 2010-05-20 Messier-Bugatti Stabilizer for stabilizing the disks of a heat pack, in particular when the heat pack is packaged in a container
US8292074B2 (en) * 2008-11-20 2012-10-23 Messier-Bugatti-Dowty Stabilizer for stabilizing the disks of a heat pack, in particular when the heat pack is packaged in a container
US20150165704A1 (en) * 2012-06-06 2015-06-18 Michelin Recherche Et Technique, S.A. Device for supporting a raw rubber tire for the manufacture of a pneumatic tire
US9409359B2 (en) * 2012-06-06 2016-08-09 Compagnie Generale Des Etablissements Michelin Device for supporting a raw rubber tire for the manufacture of a pneumatic tire
US20150246436A1 (en) * 2014-03-03 2015-09-03 Puller Structure Puller structure
US9216499B2 (en) * 2014-03-03 2015-12-22 Poul Chang Metal Industry Co., Ltd. Puller structure
US10472212B1 (en) * 2018-12-13 2019-11-12 John Keisler Pipe lifting assembly

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