US3876039A - Mechanical lift truck - Google Patents

Mechanical lift truck Download PDF

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Publication number
US3876039A
US3876039A US327623A US32762373A US3876039A US 3876039 A US3876039 A US 3876039A US 327623 A US327623 A US 327623A US 32762373 A US32762373 A US 32762373A US 3876039 A US3876039 A US 3876039A
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US
United States
Prior art keywords
frame
carriage
fork
lifting
pair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US327623A
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English (en)
Inventor
Jr Sherman W Bushnell
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Individual
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Individual
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Application filed by Individual filed Critical Individual
Priority to US327623A priority Critical patent/US3876039A/en
Priority to GB9874A priority patent/GB1456911A/en
Priority to CA189,424A priority patent/CA1012494A/en
Priority to JP49010038A priority patent/JPS49104354A/ja
Priority to DE2403181A priority patent/DE2403181A1/de
Priority to FR7402753A priority patent/FR2324567A1/fr
Priority to US05/565,138 priority patent/US4015686A/en
Application granted granted Critical
Publication of US3876039A publication Critical patent/US3876039A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07559—Stabilizing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks

Definitions

  • the vehicle comprises a wheeled base member having 5 References Cited a vertical upright, and a first telescoping member ex- UNn-ED STATES PATENTS tendableto approximately twice the height of the ver- 8 7m 5 [917 G d [87 9 tical upr1ght, and a carriage shdably secured to the 7 2 5 3'3"" ,4 first telescoping member movable the entire vertical g' mggg i distance of the telescoping member whereby when the i z j 8/1959 'fil Ira first telescoping member and the carnage are at their 2.913.226 11/1959 Pritchard et al.
  • Each of the above noted lift vehicles is capable of performing the lift function. but each of them suffer from the above noted disadvantages in that they are not completely portable because of their bulk. They are ex tremely heavy and further they do not have the capabil ity of raising an object placed on their outwardly extending forks or platforms to a position close in elevation to the top of the uprights.
  • the prior art lift devices suffer from the fact that they need a fair amount of overhead clearance to allow the upright to ass and this clearance is necessarily substantially greater than the highest possible elevation to which the load could be lifted, thereby greatly reducing the total lifting capability of the lift.
  • Another object of the present invention is to provide a lightweight lift which lifts a supported object through a series of stages.
  • the first stage includes lifting the object to the height of a rigid vertical element secured to the base of the lift and, the second stage lifts the object to the height of the telescoping element which is slidably secured to the rigid vertical element thereby raising it to an elevation approximately twice the height of the lift itself.
  • Yet another object of the present invention is to provide a lightweight lift wherein the lift platform and the horizontally disposed stabilizing means may be quickly and easily dismantled and removed whereby the truck, in the dismantled condition, may be stored in a tool locker or the like.
  • the winch winds or unwinds a cable which has a unique reeving system 2 causing the carriage transporting the outwardly extending load supporting platform to be elevated first and then the entire load and a telescoping member to be raised to the maximum position. This unique method of elevation allows the load to be placed very close to the top or uppermost position of the lift itself.
  • Still another object of the present inxention is to provide a portable lift wherein the horizontal loading platform may be used in either a first configuration wherein the platform is disposed reasonably close to the floor or load supporting surface or a second configuration wherein the load supporting platform is inverted thereby allowing the load to be lifted to a position approximately equal to the uppermost extent of the entire lift when extended.
  • FIG. I is an isometric view of the present inventive lift truck with the Carriage in its uppermost position with the lifting forks in their normal configuration.
  • FIG. 2 is a rear elevational view of the lift truck with the carriage in its lowermost position but with the lifting fork in an inverted configuration.
  • FIG. 3 is a sectional view along lines 33 of FIG. 2.
  • FIG. 4 is a horizontal section taken along lines 4 4 of FIG. 2 depicting the interaction of the telescoping support elements.
  • FIGS. 5, 6 and 7 are schematic representations showing the lift in three of its various infinite positions.
  • the portable lightweight lift com prises a structural frame element having a pair of normally vertical parallel channel-shaped main side ele ments 2 interconnected by a crosspiece 4 defining the top of the main frame.
  • a handle 5 is connected to the crosspiece 4
  • a second crosspiece 6 is located at the bottom of the framework and has interconnected therewith a pair of parallel bracket members 8 extending outwardly from the side elements 2 in a direction normal to their common plane.
  • Brackets 8 support a pair of hollow receiving elements 10 for purposes to be hereinafter described and an axle 12.
  • a pair of wheels 14 are supported by the axle l2 and enable the lift to be quickly and easily moved from one place to another without special equipmentv
  • Extending through the elements 10 in a direction transverse to the axle 12 are a pair of outriggers l6 having wheels 18 at their outermost end.
  • the outriggers 16 are locked in place within the bracket I0 by means of a pin or the like and may be moved from a position where they extend forwardly as shown in solid provid ing the maximum support against forward tilting of the mechanism to a more rearward position as shown in phantom allowing the lifting element to have a reach beyond the outriggers which is greater than would normally be expected.
  • the outriggers 16 may be easily removed for compact storage and ease of transport of the entire structure. If necessary the outriggers 16 may be provided with secondary outriggers 20 which are mounted upon an interlinking element 22 which passes through the outriggers 16 in a direction transverse to the direction of the main outriggers 16. Together the outriggers provide assurance against tipping to the side.
  • the telescopic section includes a pair of parallel l-beams 24 which are generally parallel to the channel of side ele ments 2 and a pair of interlinking transverse members 26 and 27 whereby the second telescopic member forms a rectangular element.
  • a carriage 28 having a pair of inwardly facing channel mem' bers 30 braced by transverse members 32 which extend betweed the channel members 30 and hold them in a rigid positionv
  • a vertical flange member mounted to the forward portion of the carriage 28 is a vertical flange member. shown in greater detail hereinafter. which provides support for the forwardly extending forks 34 which define the load carrying platform.
  • a third transverse element 36 which has mounted thereupon a winch 38 for purposes hereinafter described which may be hand powered or alterna tively powered by a mechanical element.
  • first pulley 40 Mounted to the top transverse member 4 is a first pulley 40. Mounted to the lowermost transverse element 26 of the telescoping section is a second pulley 42. Mounted to the uppermost transverse element 27 of the telescoping section is a third pulley 44 and secured to the bottom portion of carriage 28 is a fourth pulley 46.
  • the cable which is wound upon and secured to the winch 36 extends upwardly and downwardly passing successively through pulleys 40. 42. 44. 46 and then, as shown in greater detail with respect to FIG. 2. is dead ended in the crosspiece 27 of the first telescoping section.
  • the fork member 34 is supported by a pair of transversely disposed tubular members 50 and 52 which pass through a pair of flange members 54.
  • the vertical members 30 of the carriage 28 have an upwardly extending flanged portion 58 which serves as a stop by abutting transverse member 27 when the carriage is moved to its uppermost position.
  • the winch is operated and the carriage 28 is moved to its uppermost position whereat the stops 58 contact the lower portion of cross member 27 and then any further inhaul of the cable causes the first telescoping section to move upwardly until, at maximum extension. the lift is approximately twice its normal height.
  • the fork members 34 include the outwardly extending generally horizontally disposed leg portion which is L-shaped in cross section to complement outrigger l6 and then a normally disposed ele ment 35 attached thereto.
  • the element 35 has a pair of bores passing therethrough whereby the fork element may be rigidly held in place by means of the transverse tubular members 50, 52 as noted above.
  • the fork members may be placed in their inverse or opposite from normal position whereby the horizontally disposed element 34 is located at the top of the carriage 28 enabling the operator to place the load extremely close to the elevation required for clearance by the entire carriage itself.
  • a pair of wheels 60 is provided at the interior of the channel members 2 at the upper portion thereof for rolling contact with one side of the l-beam 24.
  • a second set of wheels 62 is located at the lower portion of th first telescoping member for interaction with the channel member 2 whereby the first telescoping member has rolling contact between itself and channel member greatly reducing any frictional contact easing the burden of relati ⁇ e movement.
  • the carriage 28 includes a pair of wheels 64 at the upper portion of the carriage and an identical pair of wheels 66 at the lower portion of the carriage to interact with the inner surface ofthe lbeam 24 forming the side of the first telescoping member.
  • the combination of the rolling interaction of wheels 64. 66 with the I-bcam provides for relatively frictionless upward movement of the carriage with respect to the first telescoping member.
  • the main structural support is provided by the pair of inwardly facing channel members 2 which as noted above are secured to a plate or flange 8 which provides support for the axle 12 supporting the wheels 14.
  • Mounted interiorly of channel member 2 is an l-beam 24 which may be formed as a single unit or alternatively may be a fabrication of two or more elements.
  • an outwardly extending flange 70 is provided upon each of the l-beams 24. providing additional rigidity and contact between the channel member 2 and the I- beam 24.
  • the wheel 62 which provides rolling contact between the channel member and the I-beam may readily be seen in this ⁇ iew.
  • the carriage 28, as noted above. is fabricated of a pair of generally vertical members 30 having mounted to their outermost section wheels 66 for rolling contact with the other half of the I-beam 24.
  • telescoping sections could be incorporated in the lift by adding one or more pairs of I'beam frames. such as 24, inwardly of 24 with carriage 28 contained within the inner flanges of the innermost pair of l-beams. The addition of such telescoping sections would thus increase the extended lift height accordingly.
  • FIGS. 5, 6 and 7 to more graphically depict the interaction of the various elements during the elevation or lowering of the load upon the inventive hand truck, shown schematically in these figures.
  • the hand truck is in its collapsed configuration with the carriage and telescoping section at their lowermost position.
  • the carriage at the bottom of the first telescoping section rests with its base adjacent the base of the vertical upright and overlying outriggers 16.
  • the cable will be extended to its greater length.
  • FIG. 6 the carriage and load supporting platform have been moved by operation of the winch to the uppermost position of the carriage relative to the telescoping section whereat it is adjacent the top of the telescoping section.
  • the stops 58 as seen in FIG. 2. will contact the upper horizontal member 27 of the telescoping section and thus eliminate any further upward movement of the load supporting platform and its carriage.
  • the truck is utilizable in its telescoped configuration to mom a load from the position adjacent the floor to a position adjacent its upright without acti- ⁇ ating the telescoping section.
  • the telescoping section is then utilized and without any delay or adjustment carries the load to an elevation approximately twice the height of the original channel members, If it is necessary that the load be placed immediately adjacent the ceiling or where low clearance is a problem and the load must pass beneath beams or the like. then the forks will be inverted. as noted above. and the load placed on the normally bottom portion ofthe forks will be raised to a position essentially adjacent the top of the first telescopic section regardless of its position.
  • a portable lift comprising. a portable base including an upwardly projecting first mast frame of generally rectangular configuration,
  • a second mast frame of generally rectangular configuration slidably mounted on said first frame for vertical movement relative thereto.
  • winch means supported by the base and having a cable wound thereon.
  • said second-mentioned mechanical advantage being as great as the first-mentioned mechanical advantage whereby when the cable is hauled in by the winch means said carriage is raised substan' tially to its full extent relative to the second frame before said second frame moves upwardly relative to the first frame to further raise the carriage.
  • a portable lift according to claim I in which said first-mentioned mechanical advantage and second mentioned advantage are each two to one.
  • each of said fork elements has a support leg extending from its inner end. and means on the carriage for selectively mounting each support leg in alternate vertical posi tions whereat the fork is in operating position at the bottom of the leg or the top of the leg to thereby provide alternative fork elevations when the carriage is at its uppermost position relative to the base.
  • a portable lift according to claim I in which said first frame is rigidly mounted on said base and has an elevated handle on the opposite side thereof from said lifting element means. and in which said winch means is manually operated and is mounted beneath said han dle on said first frame.
  • a portable lift comprising.
  • a vertically movable carriage slidably mounted on said frame assembly and having a pair of laterally spaced fork mounting means each comprising a re spective horizontal pair of laterally projecting and vertically spaced fork supports.
  • a pair of vertically reversible L-shaped fork elements each having a horizontal lifting fork and a vertical support leg adapted to be alternatively sleeved on the fork elements of a respective said fork mount ing means in a first position whereat the fork is at the bottom of the leg or in a second vertically reversed position whereat the fork is at the top of the leg and projects in the same direction as when in said first position whereby the maximum elevation of said lifting forks may be varied by vertically reversing the support legs.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Handcart (AREA)
US327623A 1973-01-29 1973-01-29 Mechanical lift truck Expired - Lifetime US3876039A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US327623A US3876039A (en) 1973-01-29 1973-01-29 Mechanical lift truck
GB9874A GB1456911A (en) 1973-01-29 1974-01-02 Portable lift
CA189,424A CA1012494A (en) 1973-01-29 1974-01-03 Mechanical lift truck
JP49010038A JPS49104354A (de) 1973-01-29 1974-01-22
DE2403181A DE2403181A1 (de) 1973-01-29 1974-01-23 Mechanische hubvorrichtung
FR7402753A FR2324567A1 (fr) 1973-01-29 1974-01-28 Elevateur mobile
US05/565,138 US4015686A (en) 1973-01-29 1975-04-04 Portable multi-stage mechanical list

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US327623A US3876039A (en) 1973-01-29 1973-01-29 Mechanical lift truck

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/565,138 Continuation-In-Part US4015686A (en) 1973-01-29 1975-04-04 Portable multi-stage mechanical list

Publications (1)

Publication Number Publication Date
US3876039A true US3876039A (en) 1975-04-08

Family

ID=23277324

Family Applications (1)

Application Number Title Priority Date Filing Date
US327623A Expired - Lifetime US3876039A (en) 1973-01-29 1973-01-29 Mechanical lift truck

Country Status (6)

Country Link
US (1) US3876039A (de)
JP (1) JPS49104354A (de)
CA (1) CA1012494A (de)
DE (1) DE2403181A1 (de)
FR (1) FR2324567A1 (de)
GB (1) GB1456911A (de)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221211A (en) * 1979-02-14 1980-09-09 The Regents Of The University Of California Infant elevator for use with an incubator
US4276961A (en) * 1979-03-12 1981-07-07 Eaton Corporation Mast and carriage assembly
WO1984001765A1 (en) * 1982-10-25 1984-05-10 Bushnell Sherman W Jr Lift
US4599038A (en) * 1983-11-07 1986-07-08 Jos. Dyson & Sons, Inc. Fork for a lift truck vehicle
US4708576A (en) * 1986-01-08 1987-11-24 Emmett Hines Accessory for expanding the payload capacity of a forklift
US4987976A (en) * 1986-06-30 1991-01-29 Vermette Machine Company, Inc. Telescoping portable lift
US5158639A (en) * 1990-06-01 1992-10-27 Somar Corporation Roll conveyance and attachment/detachment device for applying apparatus
US5951236A (en) * 1998-02-09 1999-09-14 Thompson; Michael J. Device for attaching to a vehicle to form a fork lift
US6921095B2 (en) * 2002-02-28 2005-07-26 Robert J. Middleby Hand trolley with winch operated lifting carriage
US20060214407A1 (en) * 2005-02-25 2006-09-28 Linde Aktiengesellschaft Industrial truck with at least one wheel arm and method for assembling the industrial truck
US20080056867A1 (en) * 2006-09-06 2008-03-06 Zuckerman Raymond S Computer server lift with slideable horizontal surface
US20080067005A1 (en) * 2000-05-03 2008-03-20 Hagman Earl L Variable straddle transporter lift with programmable height positions
US7380769B1 (en) * 2007-04-20 2008-06-03 Ladder Lift Systems, Llc Vehicular cargo loader
US20080164101A1 (en) * 2007-01-08 2008-07-10 Bishamon Industries Corporation Lift for skids and pallets
US20080203688A1 (en) * 2007-02-23 2008-08-28 Cosco Management, Inc. Hand truck with adjustable-height auxiliary carrier
US20080302601A1 (en) * 2007-06-06 2008-12-11 Andrew Baker Lift assembly
US20080308359A1 (en) * 2007-06-15 2008-12-18 Waltz Lucas B Quick change load wheel assembly
US20090200836A1 (en) * 2008-02-12 2009-08-13 Aaron Alls Gusseted torsion system for an open frame vehicle
US20100320034A1 (en) * 2007-06-15 2010-12-23 Crown Equipment Corporation Outrigger assembly with quick change load wheel assembly
US8240683B1 (en) * 2008-01-09 2012-08-14 Haslup Sr Joseph L Portable hand truck with powered lifting device
US20130037768A1 (en) * 2011-08-08 2013-02-14 William John Hayes Portable hoist for hand trucks
US8789654B2 (en) 2010-08-17 2014-07-29 Jlg Industries, Inc. Mast lift with screw drive and gas strut
CN104326404A (zh) * 2014-10-20 2015-02-04 苏州先锋物流装备科技有限公司 一种具有自平衡功能的结构
CN105084246A (zh) * 2015-05-08 2015-11-25 福建安麟智能科技股份有限公司 遥控升降平台
US20160302902A1 (en) * 2013-12-06 2016-10-20 Erwin Wolfsberger Apparatus for lifting and positioning four-legged animals
US9505596B2 (en) 2010-08-17 2016-11-29 Jlg Industries, Inc. Mast lift with screw drive and gas strut
WO2017165163A1 (en) * 2016-03-25 2017-09-28 Combs Jerry Improvements to hand truck and kit thereof
US9878889B2 (en) 2010-08-17 2018-01-30 Jlg Industries, Inc. Mast lift using multi-stage mast module
CN107934826A (zh) * 2017-11-21 2018-04-20 戚展鹏 一种房间装修用工具升降设备
US20190009808A1 (en) * 2017-05-31 2019-01-10 Tom SELIQUINI Apparatus, system, and method for improving staging, delivery, and receiving of shipped products
WO2019099958A1 (en) * 2017-11-17 2019-05-23 Henderson Wade Hand truck and pallet system and method of use
EP4101790A4 (de) * 2020-03-09 2023-07-26 Hai Robotics Co., Ltd. Verfahren und vorrichtung zur steuerung eines tragroboters, vertikale konsole und tragroboter

Families Citing this family (20)

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Publication number Priority date Publication date Assignee Title
JPS54152461U (de) * 1978-04-14 1979-10-23
FR2466429A1 (fr) * 1979-10-04 1981-04-10 Maira Jean Machine a monter les chauffe-eau pour les installer en hauteur
DE2946750C2 (de) * 1979-11-20 1983-12-01 Josef 7611 Steinach Maier Vorrichtung zum Anheben und Absenken von Deckenschalungen
FR2502603A1 (fr) * 1981-03-24 1982-10-01 Marsoo Henri Chariot elevateur
FR2502602A1 (fr) * 1981-03-26 1982-10-01 Laborie Henri Appareil de levage et manutention
JPS5871098U (ja) * 1981-11-09 1983-05-14 株式会社をくだ屋技研 フオ−クリフト
FR2521119B1 (fr) * 1982-02-09 1986-01-17 Chatellerault Armes Cycles Appareil de levage pour pose et depose de chauffe-eau muraux
JPS5939698A (ja) * 1982-08-27 1984-03-05 株式会社東芝 制御盤
SE456738B (sv) * 1983-09-21 1988-10-31 Profilprodukter Ab Lyftanordning
JPS61142794U (de) * 1985-02-27 1986-09-03
JPS61142793U (de) * 1985-02-27 1986-09-03
JPH0543031Y2 (de) * 1987-03-10 1993-10-28
DE4206517C1 (de) * 1992-03-02 1993-08-12 Jungheinrich Ag, 2000 Hamburg, De
GB2338226A (en) * 1998-06-12 1999-12-15 Sunrise Medical Ltd Invalid lifting device
US6371449B1 (en) * 1999-09-24 2002-04-16 Bruce T. Chamberlain Portable motorcycle hoist
DE10136840A1 (de) * 2001-07-23 2003-05-28 Alexander Gleue Variable Vorrichtung zur Aufnahme einer Konzertglocke
DE102004019914B4 (de) * 2004-04-21 2008-01-03 Ab Skf Mehrstufiges Hubsystem für einen Gabelstapler
JP5905338B2 (ja) * 2012-06-06 2016-04-20 株式会社安川電機 昇降装置
CN111232524B (zh) * 2020-03-09 2023-06-13 深圳市海柔创新科技有限公司 一种控制搬运机器人的方法、装置及搬运机器人
AT526006B1 (de) * 2022-03-18 2024-07-15 Agilox Systems Gmbh Transporteinrichtung

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US3187841A (en) * 1962-06-20 1965-06-08 Modern Hydraulics Inc Fork lift vehicle
US3319816A (en) * 1965-03-15 1967-05-16 Clark Equipment Co Tilt and hoist control mechanism for a lift truck
US3393810A (en) * 1967-07-17 1968-07-23 Harvey T Solveson Method and apparatus for constructing a large capacity mobile crane
US3489249A (en) * 1967-12-22 1970-01-13 Crown Controls Corp Industrial lift truck
US3709393A (en) * 1971-01-07 1973-01-09 Allis Chalmers Mfg Co Lift truck mast
US3768666A (en) * 1972-04-20 1973-10-30 Mcneil Corp Telescoping-type stacker crane

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US2913226A (en) * 1952-09-29 1959-11-17 Jack D Pritchard Rock-drilling machine
US2767995A (en) * 1953-06-08 1956-10-23 Robert H Stout Tractor anti-tilting attachment
US2883003A (en) * 1954-12-24 1959-04-21 Emmanuel Kaye Mast lift trucks
US3187841A (en) * 1962-06-20 1965-06-08 Modern Hydraulics Inc Fork lift vehicle
US3319816A (en) * 1965-03-15 1967-05-16 Clark Equipment Co Tilt and hoist control mechanism for a lift truck
US3393810A (en) * 1967-07-17 1968-07-23 Harvey T Solveson Method and apparatus for constructing a large capacity mobile crane
US3489249A (en) * 1967-12-22 1970-01-13 Crown Controls Corp Industrial lift truck
US3709393A (en) * 1971-01-07 1973-01-09 Allis Chalmers Mfg Co Lift truck mast
US3768666A (en) * 1972-04-20 1973-10-30 Mcneil Corp Telescoping-type stacker crane

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221211A (en) * 1979-02-14 1980-09-09 The Regents Of The University Of California Infant elevator for use with an incubator
US4276961A (en) * 1979-03-12 1981-07-07 Eaton Corporation Mast and carriage assembly
WO1984001765A1 (en) * 1982-10-25 1984-05-10 Bushnell Sherman W Jr Lift
US4458785A (en) * 1982-10-25 1984-07-10 Bushnell Jr Sherman W Lift
US4599038A (en) * 1983-11-07 1986-07-08 Jos. Dyson & Sons, Inc. Fork for a lift truck vehicle
US4708576A (en) * 1986-01-08 1987-11-24 Emmett Hines Accessory for expanding the payload capacity of a forklift
US4987976A (en) * 1986-06-30 1991-01-29 Vermette Machine Company, Inc. Telescoping portable lift
US5158639A (en) * 1990-06-01 1992-10-27 Somar Corporation Roll conveyance and attachment/detachment device for applying apparatus
US5951236A (en) * 1998-02-09 1999-09-14 Thompson; Michael J. Device for attaching to a vehicle to form a fork lift
US20080067005A1 (en) * 2000-05-03 2008-03-20 Hagman Earl L Variable straddle transporter lift with programmable height positions
US20050238468A1 (en) * 2002-02-28 2005-10-27 Middleby Robert J Hand trolley with winch operated lifting carriage
US6921095B2 (en) * 2002-02-28 2005-07-26 Robert J. Middleby Hand trolley with winch operated lifting carriage
US20060214407A1 (en) * 2005-02-25 2006-09-28 Linde Aktiengesellschaft Industrial truck with at least one wheel arm and method for assembling the industrial truck
US8256578B2 (en) * 2005-02-25 2012-09-04 Linde Material Handling Gmbh Industrial truck with two wheel arms and method for assembling the industrial truck
US20080056867A1 (en) * 2006-09-06 2008-03-06 Zuckerman Raymond S Computer server lift with slideable horizontal surface
US20080164101A1 (en) * 2007-01-08 2008-07-10 Bishamon Industries Corporation Lift for skids and pallets
US8376089B2 (en) * 2007-01-08 2013-02-19 Bishamon Industries Corporation Lift for skids and pallets
US20080203688A1 (en) * 2007-02-23 2008-08-28 Cosco Management, Inc. Hand truck with adjustable-height auxiliary carrier
US7823893B2 (en) * 2007-02-23 2010-11-02 Cosco Management, Inc. Hand truck with adjustable-height auxiliary carrier
US7380769B1 (en) * 2007-04-20 2008-06-03 Ladder Lift Systems, Llc Vehicular cargo loader
US20080302601A1 (en) * 2007-06-06 2008-12-11 Andrew Baker Lift assembly
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Also Published As

Publication number Publication date
CA1012494A (en) 1977-06-21
DE2403181A1 (de) 1974-08-01
FR2324567A1 (fr) 1977-04-15
JPS49104354A (de) 1974-10-02
GB1456911A (en) 1976-12-01

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