ABSTRACTThecranehavingagenerallytrapezoidalframewithacasterwheelateachcorner.Amastismountedonthefrontoftheframewithabracebetweeneachrearcor-nerandtopofthemast.Springloadedpinsareusedfortheseconnections.Aliftingramispivotallyconnectedtothemastandtoatelescopicboompivotedonthemast.Theframehasasocketoneachsideandatele-scopiclegincludinginnerandoutertubesismountedineachsocket.Aspringloadedpinfixesthetubesrelativetoeachother.Theendofeachleghasawheel.Eachlegcanpivotrelativetoitssleevetoenableraisingthelegtopositionthedistalendnearthemast.Thelegscanbedisconnectedfromthesleevesandalockingdevicepreventsremovalofthelegs.18Claims,3DrawingSheets1PORTABLEHYDRAULICCRANEThisisacontinuationofU.S.patentapplicationSerNo.281,490,filedDec.8,1988nowabandoned.FIELDOFTHEINVENTIONTheinventionrelatestoportablehydrauliccranesofthetypeusedinautomotivemaintenanceandrepairandinothersimilarapplicationsBACKGROUNDOFTHEINVENTIONPortablehydraulicallyoperatedcranesarecom-monlyusedinautomotiverepairshopsandservicestations,aswellasbyindividualsinhomeautorepairandareprovidedbyrentalagenciesforhomeautomo-liverepair.Whenaportablecraneisnotinuse,itmustbestored.Somepriorartcranesaredesignedsuchthattheycanbetakenaparttobestoredinmorecompactspace.Othercranesaredesignedsuchthatvariousportionsofthecranescanbefoldedforstorage.AnexampleofapriorartcraneincludingsomecomponentswhichcanbedisassembledforstorageisillustratedintheZehrungetal.U.S.Pat.No.3,521,860；issuedJuly28,1970.Thatcranehasthedisadvantageofrequiringaseparatecartforstorageormovementofthecranewhenitisdisas-sembled.SUMMARYOFTHEINVENTIONThisinventionprovidesanimprovedportablecranewithlegswhichcanbeeitherreadilyremoved,oralter-natively,pivotedtoafoldedstorageposition.Thecranealsoincludesameansforsupportingthecraneboomsuchthatitcanbeeitherreadilyremoved,oralterna-lively,foldedtoastorageposition.Thecraneembody-ingtheinventionisalsoprovidedwithwheelswhichfacilitatemovementofthecraneandcanserveasdollywheelswhenthefoldedcraneistiltedbackformove-went.Nospecialtoolsareneededfordisassemblyofthecranenorfoldingofthecranetoafoldedstorageposi-lion,andthelocks,pinsandthelikewhichholdthecranepartsinassembledpositionarebuiltinorother-wiseretainedtoreducethelikelihoodoftheusersubsti-tutinginferiororweakerparts.Morespecifically,thisinventionprovidesacranehavingagenerallytrapezoidalbaseorframeonwhichamastismounted.Aboomissupportedbytheupperendofthemast.Eachofthedivergingsidesofthebaseorframeincludesatubeorsocketwhichhousesanendofatubularlegassemblyintelescopingrelation.Alockmemberorlatchismountedinthesocketandselec-livelyinterfereswithremovalofthetubularlegfromthesocketbyengagingabracketfixedinsidethetubularleg.Thelatchcanbeselectivelymovedtoanon-inter-feringpositionbymanuallydepressinganactuatortabtopermitremovalofthetelescopinglegfromthesocketAnotherfeatureofthecraneembodyingtheinven-lionisthatthebracketinthetubularlegincludesahookedendwhichcanengagethelatchmountedinthesocketandserveasapivotsupportingthelegsuchthatitcanswingupwardlymorethan900toastorageposi-lionAnotherfeatureofthecraneembodyingtheinven-lionisthatthemast,boompowerunitandsidebracescanbeeasilyremovedwithouttools.Themastisatubewhichfitsinasocketont