US3874532A - Excavators for digging trenches and the like - Google Patents

Excavators for digging trenches and the like Download PDF

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US3874532A
US3874532A US262540A US26254072A US3874532A US 3874532 A US3874532 A US 3874532A US 262540 A US262540 A US 262540A US 26254072 A US26254072 A US 26254072A US 3874532 A US3874532 A US 3874532A
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Prior art keywords
jib
tackle
pulley
block
bucket
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US262540A
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Roger Metailler
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Richier SA
DITE RICHIER Ste
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Richier SA
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963—Arrangements on backhoes for alternate use of different tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
    • B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/301—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom with more than two arms (boom included), e.g. two-part boom with additional dipper-arm
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0321—Travelling cranes
    • B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks
    • B66C2700/0364—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks with a slewing arm
    • B66C2700/0371—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks with a slewing arm on a turntable
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/125—Combined or convertible implements

Definitions

  • One previously proposed excavator comprises an arm articulated on a jib which is itself articulated on a pivotal platform.
  • a bucket is articulated on the free end portion of the arm. and can be used for example to dig a trench.
  • An object of the present invention is to provide an excavator which can also be used as a device for lifting and handling loads without any need to modify the excavator.
  • the excavator incorporates a winch mounted permanently on the jib and connected to a tackle block by a hoisting cable passing over one or a plurality of reversing pulleys, wherein the axis of connection of the jib to the arm and/or the axis of connection of the bucket to the end of the arm and- /or the axis of connection of the bucket to the end of the arm and/or an auxiliary axis carried by the jib or the arm comprise. at one of their extremities at least, an extension capable of receiving the reversing pulley or pulleys. and comprises means for fixing the tackle-block to the jib or to an element rigid therewith whereby to store the tackle-block in an inoperative condition.
  • FIG. 1 is an elevation of an excavator in accordance with the invention
  • FIG. 2 is a fragmentary plan view of the excavator
  • FIG. 3 is an elevation illustrating the manner in which the lowering of a load by means of a jib ram causes the radius of operation of the load to vary;
  • FIG. 4 is an end elevation of the excavator.
  • an excavator comprises a chassis I provided with conventional driving means (not shown).
  • a platform 2 is pivotal about an axis x-x on the chassis I through a slewing ring gear 3.
  • Reference numeral 4 denotes a control position from which the driver of the excavator can direct all operations.
  • a fork 5 is pivotal at 6 on the platform 2 and can be displaced by a hydraulic ram 7.
  • a jib 8, connected to the fork 5 by a shaft 9. is attached to the fork 5 at a seleeted one of a number of positions lOa, 10b, 10(- and 1011.
  • An arm 11 is pivotal at 12 at the outer end portion of the jib 8 and is displacable by means of a ram I3.
  • An excavator bucket 14 is pivotal at I5 at the end portion of the arm 11 and is operated by means of a ram 16.
  • the excavator can be used to dig trenches 17 by using the bucket 14. If the trench 17 receives piping constituted by juxtaposed elements 18 which may be of relatively considerable size and weight, each element is forced onto the end of the previous element to ensure fluid-tightness of the piping and in certain cases tightness between one element and another.
  • a winch 19 is mounted on the jib 8 and has a cable 20 attached to a tackle-block 21, the hook of which is shown at 22.
  • the cable 20 passes over reversing pulleys 23a and 231; which enable a four-strand tackle to be used and which can be mounted either on the pivot 10", on the pivot 12 or on the pivot 15, these pivots being sufficiently extended, at at least one of their ends, to be able to carry these pulleys, as shown diagrammatically in FIG. 2.
  • a ring 24 mounted on the fork 5 enables the tackle-block 21 to be attached thereto while the excavator is being used to dig a trench.
  • the bucket 14 is raised to its maximum height by retracting the ram 15 to its fullest extent.
  • the pulleys 23a and 23h can be placed on one side of the pivots 10c, 12 or 15. It is then possible to modify the radius of operation of the hook 22 of the tackleblock by changing the angle of inclination of the fork 25, by means of the ram 7. It will be observed that the raising of a load, for example an element 18, by means of the tackle-block 21 and its winch 19 is performed with no change in span, therefore with no variation in the conditions of stability. On the contrary, the lowering of a load by the operation of one of the rams 7, 13 or 16 would result in a considerable variation in span, and consequently the centre of gravity, and the possibility of the excavator tipping over would be increased. It will thus be seen that the excavator described can lift heavy loads and maintain a constant radius of operation of these loads whilst permitting a considerable lifting height.
  • the tackle block 21 is located in the median longitudinal plane of the excavator as shown in FIG. 4. Under these conditions, the elements 18 can be fitted into one another, using the ram 16 and a sling 25, the hooks of which are secured to the bucket 14 and to the element 18 (FIG. 1).
  • first pivot means for articulating said jib to said platform
  • a winch mounted permanently on the jib member.
  • the winch being connected to the tackle-block by the hoisting cable means which passes over the pulley,
  • said arm member has at least one auxiliary axis transverse therewith intermediate the ends thereof and wherein said pulley mounting means comprise an extension positioned coaxial with said at least one auxiliary axis.
  • first pivot means for articulating said jib to said platform
  • said jib member has at least one auxiliary axis transverse therewith intermediate the ends thereof and wherein said pulley mounting means comprise an extension positioned coaxial with said at least one auxiliary axis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Jib Cranes (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Abstract

An excavator comprising a bucket-carrying arm articulated to a jib has a winch permanently mounted on the jib. The winch carries a lifting tackle-block via a cable entrained over a pulley mounted on the jib or arm.

Description

United States Patent 11 1 1 1 3,874,532 Metailler Apr. 1, 1975 1 EXCAVATORS FOR DIGGING TRENCHES [56] References Cited AND THE LIKE UNITED STATES PATENTS [75] Inventor: Roger Metailler, Grenoble, France 2,801,012 7/1957 Lederer 214/138 R 1 Assignee= some dim RICHIER, Paris, 533253123 11132? 255321131111: ""ijjiiifiliffi France 3,606,048 9/1971 Long 214/138 [22] Filed: June 14, 1972 Alb J M k Primary Examiner ert a ay [21] App! 262,540 Att0rney,Agent, 0r Firm-Eyre, Mann & Lucas [30] Foreign Application Priority Data [57] ABSTRACT June 16. France An ex avator comprising a bucket carrying arm articulated to a jib has a winch permanently mounted on [52] U.S. Cl. 214/138, 212/59 the jib The winch Carries a lifti tackleblock via a [51] Int. Cl E021 3/28 bl entrained ver a pulley mounted on the jib Or [58] Field of Search 214/138, 145, 147 G; arm.
2 Claims, 4 Drawing Figures EXCAVATORS FOR DIGGING TRENCHES AND THE LIKE BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to excavators.
2. Description of the Prior Art One previously proposed excavator comprises an arm articulated on a jib which is itself articulated on a pivotal platform. A bucket is articulated on the free end portion of the arm. and can be used for example to dig a trench.
In order to raise or set down a load using this excavator a rope can be attached to the teeth of the bucket or to a lug welded thereon. This solution is very simple, since it requires no conversion of the shovel, but it does prevent simultaneous use of the bucket and, moreover, the raising or lowering of the load is accompanied by a change in the operating radius of the load which it is possible to raise.
Alternatively the bucket and its actuating ram can be removed, a lifting hook being provided in place of the bucket. This arrangement has virtually the same drawbacks as the foregoing and, moreover, the additional disadvantage of requiring partial dismantling of the excavator.
An object of the present invention is to provide an excavator which can also be used as a device for lifting and handling loads without any need to modify the excavator.
SUMMARY OF THE INVENTION The excavator according to the invention incorporates a winch mounted permanently on the jib and connected to a tackle block by a hoisting cable passing over one or a plurality of reversing pulleys, wherein the axis of connection of the jib to the arm and/or the axis of connection of the bucket to the end of the arm and- /or the axis of connection of the bucket to the end of the arm and/or an auxiliary axis carried by the jib or the arm comprise. at one of their extremities at least, an extension capable of receiving the reversing pulley or pulleys. and comprises means for fixing the tackle-block to the jib or to an element rigid therewith whereby to store the tackle-block in an inoperative condition.
BRIEF DESCRIPTION OF THE DRAWINGS An embodiment of the invention will now be described. by way of example only, with reference to the accompanying diagrammatic drawings, in which:
FIG. 1 is an elevation of an excavator in accordance with the invention;
FIG. 2 is a fragmentary plan view of the excavator;
FIG. 3 is an elevation illustrating the manner in which the lowering of a load by means of a jib ram causes the radius of operation of the load to vary; and
FIG. 4 is an end elevation of the excavator.
DESCRIPTION OF THE PREFERRED EMBODIMENT As shown in FIG. I an excavator comprises a chassis I provided with conventional driving means (not shown). A platform 2 is pivotal about an axis x-x on the chassis I through a slewing ring gear 3. Reference numeral 4 denotes a control position from which the driver of the excavator can direct all operations.
A fork 5 is pivotal at 6 on the platform 2 and can be displaced by a hydraulic ram 7. A jib 8, connected to the fork 5 by a shaft 9. is attached to the fork 5 at a seleeted one of a number of positions lOa, 10b, 10(- and 1011. An arm 11 is pivotal at 12 at the outer end portion of the jib 8 and is displacable by means of a ram I3. An excavator bucket 14 is pivotal at I5 at the end portion of the arm 11 and is operated by means of a ram 16.
The excavator can be used to dig trenches 17 by using the bucket 14. If the trench 17 receives piping constituted by juxtaposed elements 18 which may be of relatively considerable size and weight, each element is forced onto the end of the previous element to ensure fluid-tightness of the piping and in certain cases tightness between one element and another.
This particular operation is facilitated by the excavator as will now be described.
A winch 19 is mounted on the jib 8 and has a cable 20 attached to a tackle-block 21, the hook of which is shown at 22. The cable 20 passes over reversing pulleys 23a and 231; which enable a four-strand tackle to be used and which can be mounted either on the pivot 10", on the pivot 12 or on the pivot 15, these pivots being sufficiently extended, at at least one of their ends, to be able to carry these pulleys, as shown diagrammatically in FIG. 2. A ring 24 mounted on the fork 5 enables the tackle-block 21 to be attached thereto while the excavator is being used to dig a trench.
If the reversing pulleys 23a and 23b are mounted on the pivot 15, in order to prevent hoisting movements from being hampered, the bucket 14 is raised to its maximum height by retracting the ram 15 to its fullest extent.
The pulleys 23a and 23h can be placed on one side of the pivots 10c, 12 or 15. It is then possible to modify the radius of operation of the hook 22 of the tackleblock by changing the angle of inclination of the fork 25, by means of the ram 7. It will be observed that the raising of a load, for example an element 18, by means of the tackle-block 21 and its winch 19 is performed with no change in span, therefore with no variation in the conditions of stability. On the contrary, the lowering of a load by the operation of one of the rams 7, 13 or 16 would result in a considerable variation in span, and consequently the centre of gravity, and the possibility of the excavator tipping over would be increased. It will thus be seen that the excavator described can lift heavy loads and maintain a constant radius of operation of these loads whilst permitting a considerable lifting height.
It is possible to locate the two pulleys 23a and 23b on either side of the arm 11 or of the jib 9. In this case, the tackle block 21 is located in the median longitudinal plane of the excavator as shown in FIG. 4. Under these conditions, the elements 18 can be fitted into one another, using the ram 16 and a sling 25, the hooks of which are secured to the bucket 14 and to the element 18 (FIG. 1).
What is claimed is:
1. In an excavator,
a jib member,
a pivotal platform,
first pivot means for articulating said jib to said platform,
an arm member,
second pivot means for articulating the arm member to the jib member at one end thereof,
a bucket,
third pivot means for articulating the bucket to the arm member at one end thereof,
a winch mounted permanently on the jib member.
a tackle-block,
hoisting cable means,
at least one pulley, the winch being connected to the tackle-block by the hoisting cable means which passes over the pulley,
means for mounting the pulley exterior to one of said members positioned to permit unobstructed movement of said tackle-block,
means for retaining the tackle-block in a stored condition, and
wherein said arm member has at least one auxiliary axis transverse therewith intermediate the ends thereof and wherein said pulley mounting means comprise an extension positioned coaxial with said at least one auxiliary axis.
2. In an excavator,
a jib member,
a pivotal platform,
first pivot means for articulating said jib to said platform,
an arm member,
second pivot means for articulating the arm member to the jib member at one end thereof,
a bucket,
third pivot means for articulating the bucket to the arm member at one end thereof,
a winch mounted permanently on the jib member,
a tackle-block,
hoisting cable means,
at least one pulley, the winch being connected to the tackle-block by the hoisting cable means which passes over the pulley, I
means for mounting the pulley exterior to one of said members positioned to permit unobstructed movement of said tackle-block,
means for retaining the tackle-block in a stored condition, and
wherein said jib member has at least one auxiliary axis transverse therewith intermediate the ends thereof and wherein said pulley mounting means comprise an extension positioned coaxial with said at least one auxiliary axis.

Claims (2)

1. In an excavator, a jib member, a pivotal platform, first pivot means for articulating said jib to said platform, an arm member, second pivot means for articulating the arm member to the jib member at one end thereof, a bucket, third pivot means for articulating the bucket to the arm member at one end thereof, a winch mounted permanently on the jib member, a tackle-block, hoisting cable means, at least one pulley, the winch being connected to the tackleblock by the hoisting cable means which passes over the pulley, means for mounting the pulley exterior to one of said members positioned to permit unobstructed movement of said tackleblock, means for retaining the tackle-block in a stored condition, and wherein said arm member has at least one auxiliary axis transverse therewith intermediate the ends thereof and wherein said pulley mounting means comprise an extension positioned coaxial with said at least one auxiliary axis.
2. In an excavator, a jib member, a pivotal platform, first pivot means for articulating said jib to said platform, an arm member, second pivot means for articulating the arm member to the jib member at one end thereoF, a bucket, third pivot means for articulating the bucket to the arm member at one end thereof, a winch mounted permanently on the jib member, a tackle-block, hoisting cable means, at least one pulley, the winch being connected to the tackle-block by the hoisting cable means which passes over the pulley, means for mounting the pulley exterior to one of said members positioned to permit unobstructed movement of said tackle-block, means for retaining the tackle-block in a stored condition, and wherein said jib member has at least one auxiliary axis transverse therewith intermediate the ends thereof and wherein said pulley mounting means comprise an extension positioned coaxial with said at least one auxiliary axis.
US262540A 1971-06-16 1972-06-14 Excavators for digging trenches and the like Expired - Lifetime US3874532A (en)

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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050586A (en) * 1975-10-23 1977-09-27 The Manitowoc Company, Inc. Apparatus for raising & lowering a mast and boom on a mobile crane
US4218837A (en) * 1978-08-21 1980-08-26 Koehring Company High lift hydraulic system for an excavator
US4290731A (en) * 1979-03-26 1981-09-22 Griffith John A Apparatus for picking up overturned vehicles
US4365429A (en) * 1981-11-18 1982-12-28 Bucyrus-Erie Company Maximum lift system for hydraulic hoe
US4373853A (en) * 1980-07-23 1983-02-15 The United States Of America As Represented By The Secretary Of Agriculture Log handling machine
EP0192126A1 (en) * 1985-02-22 1986-08-27 Hermann Grundhöfer Device suspendable from a dipper for handling pipets or the like
US4917566A (en) * 1988-11-17 1990-04-17 Contractors Crane Service, Inc. Crane attachment for backhoe
US4934897A (en) * 1989-02-23 1990-06-19 J. I. Case Company Pipe-moving apparatus
US4950125A (en) * 1986-12-19 1990-08-21 Reco Crane Company, Inc. "True free fall" hydraulic winch system for converting a "backhoe" to a "crane"
EP0395305A2 (en) * 1989-04-26 1990-10-31 Japanic Corporation Excavator
US4969789A (en) * 1988-12-16 1990-11-13 Searle Gregory P Machine for handling modular building components
WO1993018333A1 (en) * 1992-03-05 1993-09-16 Northern Illinois Gas Company Pipe seal
US5267824A (en) * 1989-04-26 1993-12-07 Kabushiki Kaisha Japanic Tool controlling mechanisms for excavator with telescopic arm
US6149349A (en) * 1998-10-14 2000-11-21 Nikiforuk; Nick Apparatus and method for extracting and replacing buried pipe
US6152425A (en) * 1998-02-18 2000-11-28 Boyer; Mark L. Boom mounted winch
EP1138627A2 (en) * 2000-03-30 2001-10-04 Haas Maschinenbau GmbH Winch mounting on excavator
US6494437B1 (en) 1995-10-24 2002-12-17 Mark L. Boyer Boom mounted winch
US20090260265A1 (en) * 2008-04-18 2009-10-22 Hans Manuel Aeschbacher Accessory For Converting Excavators
US20100078403A1 (en) * 2007-05-03 2010-04-01 Eckhard Wimmer Adjusting mechanism for a winch
US8864101B1 (en) * 2010-09-14 2014-10-21 Lynn A. Buckner Machine implemented utility valve exercising apparatus
US20140367624A1 (en) * 2011-10-13 2014-12-18 Aztec Retractable frame for a maintenance vehicle
US9944502B2 (en) * 2013-03-29 2018-04-17 Hitachi Sumitomo Heavy Industries Construction Crane Co., Ltd. Cylinder retraction system, boom device and crawler crane
US10464790B1 (en) * 2018-12-01 2019-11-05 Viorel Gabriel Brutaru Fiber pulling winch attachment for an excavator bucket

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414615A1 (en) * 1978-01-17 1979-08-10 Somaco Boom mounting for drill auger - has yoke arms hinging on or detachable from boom side faces

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801012A (en) * 1954-07-22 1957-07-30 Lester C Lederer Digging machine
US2902177A (en) * 1956-10-08 1959-09-01 American Hoist & Derrick Co Block stowage means for derricks
US3362550A (en) * 1967-02-21 1968-01-09 Gilbert O. Kappler Vehicle with boom
US3606048A (en) * 1969-09-05 1971-09-20 Long Mfg Co Inc Vehicle having front,central and rear implements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801012A (en) * 1954-07-22 1957-07-30 Lester C Lederer Digging machine
US2902177A (en) * 1956-10-08 1959-09-01 American Hoist & Derrick Co Block stowage means for derricks
US3362550A (en) * 1967-02-21 1968-01-09 Gilbert O. Kappler Vehicle with boom
US3606048A (en) * 1969-09-05 1971-09-20 Long Mfg Co Inc Vehicle having front,central and rear implements

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050586A (en) * 1975-10-23 1977-09-27 The Manitowoc Company, Inc. Apparatus for raising & lowering a mast and boom on a mobile crane
US4218837A (en) * 1978-08-21 1980-08-26 Koehring Company High lift hydraulic system for an excavator
US4290731A (en) * 1979-03-26 1981-09-22 Griffith John A Apparatus for picking up overturned vehicles
US4373853A (en) * 1980-07-23 1983-02-15 The United States Of America As Represented By The Secretary Of Agriculture Log handling machine
US4365429A (en) * 1981-11-18 1982-12-28 Bucyrus-Erie Company Maximum lift system for hydraulic hoe
EP0192126A1 (en) * 1985-02-22 1986-08-27 Hermann Grundhöfer Device suspendable from a dipper for handling pipets or the like
US4950125A (en) * 1986-12-19 1990-08-21 Reco Crane Company, Inc. "True free fall" hydraulic winch system for converting a "backhoe" to a "crane"
US4917566A (en) * 1988-11-17 1990-04-17 Contractors Crane Service, Inc. Crane attachment for backhoe
US4969789A (en) * 1988-12-16 1990-11-13 Searle Gregory P Machine for handling modular building components
US4934897A (en) * 1989-02-23 1990-06-19 J. I. Case Company Pipe-moving apparatus
US5267824A (en) * 1989-04-26 1993-12-07 Kabushiki Kaisha Japanic Tool controlling mechanisms for excavator with telescopic arm
US5092733A (en) * 1989-04-26 1992-03-03 Kabushiki Kaisha Hikoma Seisakusho Tool controlling mechanisms for excavator with telescopic arm
EP0395305A2 (en) * 1989-04-26 1990-10-31 Japanic Corporation Excavator
EP0395305A3 (en) * 1989-04-26 1992-01-22 Japanic Corporation Excavator
WO1993018333A1 (en) * 1992-03-05 1993-09-16 Northern Illinois Gas Company Pipe seal
US5297584A (en) * 1992-03-05 1994-03-29 Northern Illinois Gas Company Pipe seal
US5365977A (en) * 1992-03-05 1994-11-22 Northern Illinois Gas Company Pipe seal
US6494437B1 (en) 1995-10-24 2002-12-17 Mark L. Boyer Boom mounted winch
US6152425A (en) * 1998-02-18 2000-11-28 Boyer; Mark L. Boom mounted winch
US6149349A (en) * 1998-10-14 2000-11-21 Nikiforuk; Nick Apparatus and method for extracting and replacing buried pipe
EP1138627A2 (en) * 2000-03-30 2001-10-04 Haas Maschinenbau GmbH Winch mounting on excavator
EP1138627A3 (en) * 2000-03-30 2003-06-04 Haas Maschinenbau GmbH Winch mounting on excavator
US20100078403A1 (en) * 2007-05-03 2010-04-01 Eckhard Wimmer Adjusting mechanism for a winch
US8113363B2 (en) * 2007-05-03 2012-02-14 Palfinger Ag Adjusting mechanism for a winch
US20090260265A1 (en) * 2008-04-18 2009-10-22 Hans Manuel Aeschbacher Accessory For Converting Excavators
US8864101B1 (en) * 2010-09-14 2014-10-21 Lynn A. Buckner Machine implemented utility valve exercising apparatus
US20140367624A1 (en) * 2011-10-13 2014-12-18 Aztec Retractable frame for a maintenance vehicle
US9944502B2 (en) * 2013-03-29 2018-04-17 Hitachi Sumitomo Heavy Industries Construction Crane Co., Ltd. Cylinder retraction system, boom device and crawler crane
US10464790B1 (en) * 2018-12-01 2019-11-05 Viorel Gabriel Brutaru Fiber pulling winch attachment for an excavator bucket

Also Published As

Publication number Publication date
FR2142291A5 (en) 1973-01-26
DE2227451A1 (en) 1973-01-25
IT959157B (en) 1973-11-10
GB1359070A (en) 1974-07-10

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