US2535961A - Hoist or off-bearer - Google Patents

Hoist or off-bearer Download PDF

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Publication number
US2535961A
US2535961A US46332A US4633248A US2535961A US 2535961 A US2535961 A US 2535961A US 46332 A US46332 A US 46332A US 4633248 A US4633248 A US 4633248A US 2535961 A US2535961 A US 2535961A
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Prior art keywords
track
arms
hoist
trolley
cylinder
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Expired - Lifetime
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US46332A
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Walter G Schutt
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STEARNS Manufacturing Co
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STEARNS Manufacturing Co
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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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/242—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated suspended jacks
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/033—Magnet
    • 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
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/117—Pallet

Definitions

  • This invention relates to hoists or off-bearers" for concrete block machines or similar uses.
  • the object of the invention is to provide a simple hoist that can be used in connection with a concrete block machine or for similar work.-
  • The'hoist can be used-to elevate the platform that carries the product without requiring the operator to lift his arms as is necessary with customary hoists.
  • a fluid-operated cylinder and piston have been suspendedfrom a trolley running on a track and there has been suspended from the movable member (cyclinder or piston) a yoke-like member whose lower arm or arms forms a pick-up platform for the work.
  • the workman guides the off-bearer or yo'"e by means of grippers by which he can manuever the pick up p atform and at the same time control the fluid.
  • the blocks are delivered from a concrete block machine very rapidly and the operator has to work fast and continuously, hence he is subject to considerable fatigue and strain by reason of his arms being brought into unnatural position in taking the work off the machine platform and laying it up in the drying racks.
  • Figure l is an elevation showing my improved off-bearer being used in connection with a concrete block machine and a drying rack.
  • Figure 2 is a plan view of the trolley and its swingable track.
  • Figure 3 is a section on the line 3-3 of Figure 1.
  • Figure 4 is a plan view of the hoist taken on the section line 44 of Figure 1.
  • Figure 5 is a section on the line 5-5 of Figure 4.
  • Figure 6 is an enlarged detail view of the portion of the hoist adjacent the pick up arms
  • Figure 7 is a section on the line 7-4 of Figure 6.
  • I is a concrete block machine in which the blocks are molded by apparatus that need not be herein detailed, illustrated, o-r explained. Suflice it to say that the aggregate is introduced into molds, vibrated, packed, and the blocks 3 are pushed out on the machine platform on arms 5 Claims; (Cl. 212-32) iii) .4. This'is the usual mode of operation in making and molding concrete or cinder blocks in a machine. It is necessary to lift the blocks ofi the arms 4 and to place them in' a rack 5 which has open shelves 6. The concrete blocks are pushed out of the machine on pallets l which can be lifted ofithe arms 4 by the pick up arms 8 of the hoist. This is clearly shown in Figure 1.
  • the workman then has to swing the hoist and the arms around and deposit the pallets on the open shelves 6 of the drying rack 5. This he can do by reason of the suspension of the offbearers on the trolley 9.
  • This trolley has wheels II] which run on the tracks I l of the T beam H which is supported in cantilever fashion by the truss I3 attached to the knuckle I 4 of the hinge bracket I5 that is attached to the concrete machine or to the wall of the workroom.
  • the hoist is suspended from the trolley by a swivel it which supports the ropes I! that support the suspension bars I 8 of the hoist.
  • These suspension bars 8 are provided at each end with spacers 19 provided each in the mid-portion with a groove 20 into which the cable "is looped as shown in Figure 5.
  • the two suspension bars i 8 support the vertical I beam track 2
  • Running on this track are a pair of rolls 22 secured by brackets 23 to the air cylinder 24 (or it may be hydraulic) which moves up and down on piston 25 which is suspended from the suspension bars by means of the sus pension rod 26 that is hung from plate 21 that is attached to the suspension bars.
  • the cylinder has a packing gland 28 on the piston rod and at the bottom of the cylinder is a cross bar 29 which supports the pick up arms 8.
  • These arms may be provided with an electro-magnetic winding 30, if this is desired so that the arms can be magnetized by a suitable electrical control for lifting the empty pallets off the track by simply lowering the lifting arms on top of an empty pallet in the'rack and then returning the pallet and dropping it on a conveyor (not shown) as described and claimed in my co-pending application Serial No. 18,798, filed April 3, 1948.
  • the electro-magnetic feature is not claimed in the present application and is not an essential part of this hoist or off-bearer.
  • which has legs 32 and 33 at the ends. These legs each carry a valve 34 which can be opened and closed by the operation of the pinch lever 35 pivoted to the handle 36 attached to the cross bar 3
  • the operator may grip the handles 36 as he is shown doing in Figure 1, and by turning the vertical track 2
  • a hoist or off-bearer for use for concrete block forming machines or "for other elevatin'g v.and conveying operations having incombination a'beam forming a track swinging in substantially a horizontal plane, a trolley adapted to'betmoved hung from said trolley by'ia.swivel,control-han- -"dles andfluid controlvalvessecuredto said'-vertical track, a piston andvfiuid operatedrcylinder, one of. them held againstvertical movement and the other movable along saidvertical track, one or more liftingarmssecured' tothe movabl'e memher and extending -.laterally.- to vsupport.'-tl:1e-.work
  • -S.. A hoist .or cit-bearer for use With concrete 'block machines or other purposes; havingin combination, a swingable support including a track, a trolley movable on said track, a vertical track hung from said trolley, a piston and cylinder hung from said trolley, one of said elements movable with respect to the other by motive fluid, the movable element guided on said vertical track, one or more horizontal arms projecting from said "movabl'e elementior lifting or lowering the load "-when themotive fiuidisturne'd into thecylinder, hand operated control means for the motive fluid secured to the lower end of said vertical track, said control means comprising two handles, hand levers and valves operated by the levers to controhthelfiowlofthe fluid to and from the two nds :orthe cylinder, Land conduits for the motive fluid connecting'the said control means with the cyl- :inder.
  • Ahoist or' o'fi bearer for use with concrete block machines or other purposes, having in combination, a swingable support including a track, '--a trolleyimovable* on" said track; a 'verticalItrack hung :from .said etrolley upon a 1 swivel,a tpiston andicylinder. hun from said trolley by ai'sw-ivel, .tone of said elements movable with respect toiithe iothe'rrbylmotive fluidjthe.
  • A'hoist or ofi-bearer ior a concrete block machine orother purposes, having/in; combination a swinging beam of inverted 'T cross-section, ai trolley movable on theinvertedT, suspension :b3,1S, cablesfor.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Description

Patented Dec. 26, 1950 ICE ' HOIST OB OFFEBEARER Walter G. Schutt, Adrian, Mich., assignor to Stearns Manufacturing Company, Adrian, Mich., a corporation of Michigan 1 Application August 26, 1948; Serial No. 46,332
This invention relates to hoists or off-bearers" for concrete block machines or similar uses. The object of the invention is to provide a simple hoist that can be used in connection with a concrete block machine or for similar work.- The'hoist can be used-to elevate the platform that carries the product without requiring the operator to lift his arms as is necessary with customary hoists. In hoists heretofore used in connection with concrete block machines, a fluid-operated cylinder and piston have been suspendedfrom a trolley running on a track and there has been suspended from the movable member (cyclinder or piston) a yoke-like member whose lower arm or arms forms a pick-up platform for the work. Secured to the lower end of the yoke are the controls that control the fluids that operate the hoist. The workman guides the off-bearer or yo'"e by means of grippers by which he can manuever the pick up p atform and at the same time control the fluid. This has been tiresome because the operator has had to raise and lower his arms with the platform and at the same time control the movement of the platform and the fluid valves with his arms and hands in an elevated and unnatural position. The blocks are delivered from a concrete block machine very rapidly and the operator has to work fast and continuously, hence he is subject to considerable fatigue and strain by reason of his arms being brought into unnatural position in taking the work off the machine platform and laying it up in the drying racks.
Referring to the drawings:
Figure l is an elevation showing my improved off-bearer being used in connection with a concrete block machine and a drying rack.
Figure 2 is a plan view of the trolley and its swingable track.
Figure 3 is a section on the line 3-3 of Figure 1.
Figure 4 is a plan view of the hoist taken on the section line 44 of Figure 1.
Figure 5 is a section on the line 5-5 of Figure 4.
Figure 6 is an enlarged detail view of the portion of the hoist adjacent the pick up arms,
Figure 7 is a section on the line 7-4 of Figure 6.
I is a concrete block machine in which the blocks are molded by apparatus that need not be herein detailed, illustrated, o-r explained. Suflice it to say that the aggregate is introduced into molds, vibrated, packed, and the blocks 3 are pushed out on the machine platform on arms 5 Claims; (Cl. 212-32) iii) .4. This'is the usual mode of operation in making and molding concrete or cinder blocks in a machine. It is necessary to lift the blocks ofi the arms 4 and to place them in' a rack 5 which has open shelves 6. The concrete blocks are pushed out of the machine on pallets l which can be lifted ofithe arms 4 by the pick up arms 8 of the hoist. This is clearly shown in Figure 1.
The workman then has to swing the hoist and the arms around and deposit the pallets on the open shelves 6 of the drying rack 5. This he can do by reason of the suspension of the offbearers on the trolley 9. This trolley has wheels II] which run on the tracks I l of the T beam H which is supported in cantilever fashion by the truss I3 attached to the knuckle I 4 of the hinge bracket I5 that is attached to the concrete machine or to the wall of the workroom. The hoist is suspended from the trolley by a swivel it which supports the ropes I! that support the suspension bars I 8 of the hoist. These suspension bars 8 are provided at each end with spacers 19 provided each in the mid-portion with a groove 20 into which the cable "is looped as shown in Figure 5. l
The two suspension bars i 8 support the vertical I beam track 2| which is shown in detail in Figures 6 and 7. Running on this track are a pair of rolls 22 secured by brackets 23 to the air cylinder 24 (or it may be hydraulic) which moves up and down on piston 25 which is suspended from the suspension bars by means of the sus pension rod 26 that is hung from plate 21 that is attached to the suspension bars. The cylinder has a packing gland 28 on the piston rod and at the bottom of the cylinder is a cross bar 29 which supports the pick up arms 8. These arms may be provided with an electro-magnetic winding 30, if this is desired so that the arms can be magnetized by a suitable electrical control for lifting the empty pallets off the track by simply lowering the lifting arms on top of an empty pallet in the'rack and then returning the pallet and dropping it on a conveyor (not shown) as described and claimed in my co-pending application Serial No. 18,798, filed April 3, 1948. However, the electro-magnetic feature is not claimed in the present application and is not an essential part of this hoist or off-bearer.
Attached to the vertical tracks 2| near the bottom is a cross bar 3| which has legs 32 and 33 at the ends. These legs each carry a valve 34 which can be opened and closed by the operation of the pinch lever 35 pivoted to the handle 36 attached to the cross bar 3|. These valves ar iin alon the beam 011113116 track, a' verticaltrack 3 the air lines 31 and 38 which lead to the top and bottom of the air cylinder.
It will be seen that the operator may grip the handles 36 as he is shown doing in Figure 1, and by turning the vertical track 2| on the swivel l2 and by the aid of the carriage 9 and the swinging track beam I I, he may carry the work around to any position in theia'rea of'the coverage of the swinging T-beam. He may elevate or lower the pickup arms by means of pinching on the levers 35 which operate the air valves to turn the air in one end of the cylinder and release it from-the other end of the cylinder to raise'or'lower the work carrying arms without any wayzfraisin'g or lowering the operator's arms. Thisis-amuch easier and more comfortable way of controlling an off-bearer than in the apparatusxheretofore available.
What I claim is:
l. A hoist or off-bearer for use for concrete block forming machines or "for other elevatin'g v.and conveying operations having incombination a'beam forming a track swinging in substantially a horizontal plane, a trolley adapted to'betmoved hung from said trolley by'ia.swivel,control-han- -"dles andfluid controlvalvessecuredto said'-vertical track, a piston andvfiuid operatedrcylinder, one of. them held againstvertical movement and the other movable along saidvertical track, one or more liftingarmssecured' tothe movabl'e memher and extending -.laterally.- to vsupport.'-tl:1e-.work
towbe handled, and flexible-hose connectinguth'e .=cyl-inder with the handcontrolled ,-fluid fvalves, whereby by maneuvering thehandlesandoperat- -ing the valves :one can maneuver the liftingarm's and apply fluid pressure in the cylindertoelevate or lower. thesaid arms.
2. :A hoist or ofiebearer -for use with concrete block machines or otherpurposeshaving in com- .--bination, :aswingable support: including ia-track,
1 a trolleyrmovable on said track, a vertical track ehungfrom" said trolley. 'a piston andcylinder. hung from said trolley, one of "said elements; movable with respect to the other by motive fiuidpthe :movable elementguided on-saidvertical track, .one or more horizontal arms projectingfrom said movable element for lifting orlowering the'load when the motive fluid is turned into vthe cylinder,
- hand operated control means for the: motivefiuid v secured'to the lower "end ofzsaid verticalitrack,
and conduits for: the motive fiuid connectingwthe .said controlmeans withethe cylinder.
-S..=A hoist .or cit-bearer for use With concrete 'block machines or other purposes; havingin combination, a swingable support including a track, a trolley movable on said track, a vertical track hung from said trolley, a piston and cylinder hung from said trolley, one of said elements movable with respect to the other by motive fluid, the movable element guided on said vertical track, one or more horizontal arms projecting from said "movabl'e elementior lifting or lowering the load "-when themotive fiuidisturne'd into thecylinder, hand operated control means for the motive fluid secured to the lower end of said vertical track, said control means comprising two handles, hand levers and valves operated by the levers to controhthelfiowlofthe fluid to and from the two nds :orthe cylinder, Land conduits for the motive fluid connecting'the said control means with the cyl- :inder.
"4. Ahoist or' o'fi bearer for use with concrete block machines or other purposes, having in combination, a swingable support including a track, '--a trolleyimovable* on" said track; a 'verticalItrack hung :from .said etrolley upon a 1 swivel,a tpiston andicylinder. hun from said trolley by ai'sw-ivel, .tone of said elements movable with respect toiithe iothe'rrbylmotive fluidjthe. movable elementguid'd on said-vertical track, one ormore :horizontal "aarmst projecting from said :imovable:"e1ement .--for litting or'lowering the load whenthe motive fluid is"? turned into the cylinder, hand. operated :con-
trol-meansior the motive fluid securedJto the clower r'end of said vertical track,: and conduitsplior :.the :motive .iluid connecting the said -c'ontr'ol means with the cylinder.
5. A'hoist or ofi-bearer ior a concrete block machine orother purposes, having/in; combination a swinging beam of inverted 'T cross-section, ai trolley movable on theinvertedT, suspension :b3,1S, cablesfor. suspending the bars' from s'aid :trolley, a swivel between thecables and thesuspension barspa verticalttrack suspended from=said barseae-piston suspended from said bars by aLpisiton rod, a cylinder' movable on said ipiston by efluidlpressure t and :havin means; for engaging ssaid i vertical .track to :guide the travel of iisa'id 45. cylinder, flexible fluid-lines :leading toxand from :said-cylindenia barisecured to the. lower: endiof said ve'rtical track, :valve oin said fiuid lines 'imounte'd upon said bar, handles secured =to said wba'r, wvalve "controlling levers mounted at isaid 50 handles, *and liftingarms projecting from lthe --lcmver erid of said cylinder.
WALTER SCHUTZI.
Nareierencescited.
US46332A 1948-08-26 1948-08-26 Hoist or off-bearer Expired - Lifetime US2535961A (en)

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Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622750A (en) * 1949-07-05 1952-12-23 Ehlers Otto William Magnetic lifting device for fork trucks
US2624470A (en) * 1949-02-10 1953-01-06 Herbert F Geist Pallet handling apparatus
US2646180A (en) * 1949-11-10 1953-07-21 Northwest Concrete Products Co Concrete block handling device
US2675134A (en) * 1949-07-07 1954-04-13 Dean B Becker Automatic master load warehousing
US2696310A (en) * 1951-05-10 1954-12-07 Lith I Bar Company Block off-bearing apparatus
US2698105A (en) * 1951-03-13 1954-12-28 Starline Portable barn gutter cleaner
US2741371A (en) * 1952-06-24 1956-04-10 George L Oswalt Pallet lifter
US2765928A (en) * 1950-10-18 1956-10-09 Claud C Riemenschneider Merchandise handling and storing equipment
US2796178A (en) * 1954-07-23 1957-06-18 Henry A Praschak Device for handling building blocks and other building products
US2843027A (en) * 1952-01-10 1958-07-15 E G Staude Mfg Company Inc Machine for making plastic boxes
US2847131A (en) * 1950-01-17 1958-08-12 Miller Leona Nell Automobile storage
US2869739A (en) * 1954-11-10 1959-01-20 Gene Olsen Corp Apparatus for stacking and unstacking building blocks
US2924429A (en) * 1954-11-12 1960-02-09 Rca Corp Servo-motor hoisting and handling apparatus
US3010589A (en) * 1958-03-19 1961-11-28 Gene Olsen Corp Rack unloader
US3034663A (en) * 1959-09-29 1962-05-15 Sylvania Electric Prod Article transfer apparatus
US3036372A (en) * 1957-06-05 1962-05-29 Cie De Pont A Mousson Apparatus for positioning and assembling pipe elements
US3063587A (en) * 1959-01-31 1962-11-13 Forschepiepe Fritz Load holding device for fork lift trucks
US3095984A (en) * 1961-01-23 1963-07-02 Link Belt Co Article handling equipment
US3105596A (en) * 1962-05-28 1963-10-01 Paco Corp Off bearer
US3115974A (en) * 1960-07-21 1963-12-31 Bergen Machine & Tool Company Automatic off-bearing equipment for block molding machine
US3128501A (en) * 1961-05-08 1964-04-14 John E Borah Power operated multiple press
US3189205A (en) * 1962-11-08 1965-06-15 Yale & Towne Inc Stacking mechanism
US3245129A (en) * 1961-09-25 1966-04-12 Gerhard B Entz System for manufacturing pre-cast building stone
US4088232A (en) * 1974-04-01 1978-05-09 Clark Equipment Co. Apparatus with storage cells disposed adjacent vertical shafts having covers and a lift means movable thereabove
US4917559A (en) * 1988-11-14 1990-04-17 Staalkat B.V. Method and apparatus of loading or unloading a plurality of stacks of trays from a container
US5007785A (en) * 1988-11-14 1991-04-16 Staalkat B.V. Method and apparatus for unloading stacks of trays
US5348439A (en) * 1993-09-14 1994-09-20 Kuhn Jr George F Portable unloading device
US5931633A (en) * 1996-10-02 1999-08-03 Cardos B.V. Order-collection appliance for collecting orders in warehouses with palletized storage of goods
US6164898A (en) * 1998-01-21 2000-12-26 Taylor; Richard J. Manhole cover removal apparatus and method
US6592321B2 (en) * 2000-08-03 2003-07-15 Demag Cranes & Components Gmbh Control and guiding device for manually operating a handling unit, and modular construction kit for making such devices of different configuration
US6832885B2 (en) * 2002-09-04 2004-12-21 The Boeing Company Handling apparatus for structural members
US20110120967A1 (en) * 2009-11-20 2011-05-26 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Conveyor device and method for moving a weight using the conveyor device
US20130145602A1 (en) * 2011-12-08 2013-06-13 Honda Motor Co., Ltd. Component handling system for assembling vehicles and methods of assembling vehicles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2624470A (en) * 1949-02-10 1953-01-06 Herbert F Geist Pallet handling apparatus
US2622750A (en) * 1949-07-05 1952-12-23 Ehlers Otto William Magnetic lifting device for fork trucks
US2675134A (en) * 1949-07-07 1954-04-13 Dean B Becker Automatic master load warehousing
US2646180A (en) * 1949-11-10 1953-07-21 Northwest Concrete Products Co Concrete block handling device
US2847131A (en) * 1950-01-17 1958-08-12 Miller Leona Nell Automobile storage
US2765928A (en) * 1950-10-18 1956-10-09 Claud C Riemenschneider Merchandise handling and storing equipment
US2698105A (en) * 1951-03-13 1954-12-28 Starline Portable barn gutter cleaner
US2696310A (en) * 1951-05-10 1954-12-07 Lith I Bar Company Block off-bearing apparatus
US2843027A (en) * 1952-01-10 1958-07-15 E G Staude Mfg Company Inc Machine for making plastic boxes
US2741371A (en) * 1952-06-24 1956-04-10 George L Oswalt Pallet lifter
US2796178A (en) * 1954-07-23 1957-06-18 Henry A Praschak Device for handling building blocks and other building products
US2869739A (en) * 1954-11-10 1959-01-20 Gene Olsen Corp Apparatus for stacking and unstacking building blocks
US2924429A (en) * 1954-11-12 1960-02-09 Rca Corp Servo-motor hoisting and handling apparatus
US3036372A (en) * 1957-06-05 1962-05-29 Cie De Pont A Mousson Apparatus for positioning and assembling pipe elements
US3010589A (en) * 1958-03-19 1961-11-28 Gene Olsen Corp Rack unloader
US3063587A (en) * 1959-01-31 1962-11-13 Forschepiepe Fritz Load holding device for fork lift trucks
US3034663A (en) * 1959-09-29 1962-05-15 Sylvania Electric Prod Article transfer apparatus
US3115974A (en) * 1960-07-21 1963-12-31 Bergen Machine & Tool Company Automatic off-bearing equipment for block molding machine
US3095984A (en) * 1961-01-23 1963-07-02 Link Belt Co Article handling equipment
US3128501A (en) * 1961-05-08 1964-04-14 John E Borah Power operated multiple press
US3245129A (en) * 1961-09-25 1966-04-12 Gerhard B Entz System for manufacturing pre-cast building stone
US3105596A (en) * 1962-05-28 1963-10-01 Paco Corp Off bearer
US3189205A (en) * 1962-11-08 1965-06-15 Yale & Towne Inc Stacking mechanism
US4088232A (en) * 1974-04-01 1978-05-09 Clark Equipment Co. Apparatus with storage cells disposed adjacent vertical shafts having covers and a lift means movable thereabove
US4917559A (en) * 1988-11-14 1990-04-17 Staalkat B.V. Method and apparatus of loading or unloading a plurality of stacks of trays from a container
US5007785A (en) * 1988-11-14 1991-04-16 Staalkat B.V. Method and apparatus for unloading stacks of trays
US5348439A (en) * 1993-09-14 1994-09-20 Kuhn Jr George F Portable unloading device
US5931633A (en) * 1996-10-02 1999-08-03 Cardos B.V. Order-collection appliance for collecting orders in warehouses with palletized storage of goods
US6164898A (en) * 1998-01-21 2000-12-26 Taylor; Richard J. Manhole cover removal apparatus and method
US6592321B2 (en) * 2000-08-03 2003-07-15 Demag Cranes & Components Gmbh Control and guiding device for manually operating a handling unit, and modular construction kit for making such devices of different configuration
US6832885B2 (en) * 2002-09-04 2004-12-21 The Boeing Company Handling apparatus for structural members
US20110120967A1 (en) * 2009-11-20 2011-05-26 Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. Conveyor device and method for moving a weight using the conveyor device
CN102070093B (en) * 2009-11-20 2013-12-11 鸿富锦精密工业（深圳）有限公司 Weight conveying apparatus and weight conveying method thereof
US20130145602A1 (en) * 2011-12-08 2013-06-13 Honda Motor Co., Ltd. Component handling system for assembling vehicles and methods of assembling vehicles
US9114962B2 (en) * 2011-12-08 2015-08-25 Honda Motor Co., Ltd. Component handling system for assembling vehicles and methods of assembling vehicles

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