as earth moving vehicles have become larger and capable of moving larger amounts of earth , rock , minerals and the like , tire and rim assemblies also have become larger and heavier . in fig1 a tire 10 may have a rubber carcass , substantially as illustrated in u . s . pat . no . 3 , 606 , 921 , and may be equipped with a track belt with metal grousers , such as illustrated in u . s . pat . no . 3 , 773 , 394 . such a tire may be mounted upon a rim of the split - type substantially as illustrated in u . s . pat . no . 3 , 802 , 744 . the rim has an inner part 12 on the side of the tire next to the vehicle and an outer part 13 secured together by a ring of bolts 14 , which also serve to attach the rim parts to an adapter 15 having a mounting ring portion 16 with holes for receiving the multiplicity of studs 17 attached to the wheel hub 18 on the vehicle . in a typical large earth moving machine of the type illustrated , forty eight such studs 17 in a ring on the wheel hub would be needed to attach the tire - rim assembly to the vehicle . a portion of the axle 19 and the drive shaft 20 are also illustrated . the entire tire , track , belt , rim , adapter and bolt assembly in a nominal 88 inch size would have a weight of about 7 , 400 pounds . the lifting device of this invention is designed to withstand all stresses which may be involved in the handling of weights in excess of the weight of such a typical 88 inch size tire and rim assembly . the lifting device has an upright standard 21 comprising a hollow rigid metal portion 22 and a rigid metal bar 23 telescoped into the interior of the portion 22 . the shape of the standard portion 22 interiorally is such as to closely receive the bar portion 23 in a telescoping manner as illustrated in fig4 . standard portion 22 is of a length to extend above the tire on a vehicle sufficiently to clear any fenders above the tire . at the top of the standard , a beam 24 is rigidly attached to the standard portion 22 so as to extend substantially at right angles to the standard . the beam comprises a hollow part 25 receiving a rigid bar 26 in telescoped manner so that the length of the beam may be adjusted . a bail 27 is attached to the rigid part 26 at its outer end in order to receive a lifting device such as the hook 28 illustrated on the end of a cable 29 of a lifting crane . another lifting bail 30 is secured to the stationery beam part 25 substantially in line with the side surface 31 of the standard so that the lifting device , which is quite heavy itself , may be handled during the attachment of the device to a tire - rim assembly by simply moving the hook 28 over to the lifting bail 30 . rigidity between the beam and the standard is assured by the use of a gusset plate 32 welded between the standard and the beam and a welded - on reinforcing metal plate 33 lapping over the joint between the standard and the beam part . the adjustment of the length of the beam may be secured in place by the use of a bolt 34 mounted in the stationary part 25 of the beam and threaded through for pressure engagement against movable beam part 26 . the main lifting force from the lifting crane through the beam and standard is exerted upon the tire - rim assembly through a lifting bracket 35 welded and thus rigidly secured to the standard in the position illustrated . with reference to fig4 the bracket is a heavy metal strap having legs 36 and 37 which are welded to the sides of the standard part 22 and wrapped around the rear of the standard and terminate in an outstanding , upwardly extending projection 38 shaped complementary to the interior surface of the wheel rim flange 39 . the rear portion 40 of the bracket about the strap is threaded and tapped in order to receive a pressure applying bolt 41 passing through both the bracket and the standard part 22 in order to apply pressure against the standard part 23 for the purpose of locking the two standard parts together . a similar locking bolt 42 is mounted by a strap 43 welded to the lower end of the standard part 22 for the purpose of similar bearing against the standard part 23 to provide two points of locking the standard parts into an adjusted position . it will be appreciated that the main lifting force from the lifting hook 28 will be transferred through the beam and the standard to the lifting bracket 35 . to ensure that no movement between the lifting device and tire - rim assembly occurs , a second bracket 44 is secured as by welding to the lower end of the standard part 23 . this bracket also terminates in parts 45 complementary in shape to the inside of the rim flange 39 . ordinarily , the standard is placed in a position approximating a diameter of the rim , in other words , across the center of the rim so that the brackets 35 and 44 will engage the rim at diametrically opposite points . once the engagement is made the locking bolts 41 and 42 are tightened so that the lifting device will be securely fastened to the tire - rim assembly . when removing a tire from a vehicle in the field , the vehicle is raised so that the tire is off the ground g . the lifting device is attached to the rim , as above described , and the nuts 46 removed from the studs 17 on the wheel hub . when this is done , the tire and its rim may be moved laterally off the studs so that the mounting ring parts 16 of the adapter 15 will clear the studs permitting the entire assembly to be swung outwardly from the vehicle for removal purposes . it is often difficult to move such a large weight relative to the vehicle with manpower . in the present invention , hydraulic jacking means may be secured to the standard in such a way as to move the assembly relative to the vehicle . referring to fig2 a bracket may be frictionally attached to the standard for supporting hydraulic jacks to do the pushing against the vehicle for moving the tire assembly from the vehicle . a pair of plates 50 and 51 are vertically spaced by being attached to mounting plates 52 and 53 respectively of a pair of hydraulic jacks 54 and 55 . bolts 56 , shown as four in number , two to each jack , may secure the jacks to the plates 50 and 51 . a pair of tie rods 57 are threaded into the upper plate 50 and pass through a rear mounting plate 58 where nuts 59 on the rods may secure the bracket to the upright standard part 22 , as illustrated in fig1 . a hydraulic pump 60 may be hand operated by its handle 61 to force hydraulic fluid through flexible lines 62 to the jacks to extend the piston rods 64 and 65 of the two jacks respectively in order that the pads 66 and 67 on the ends of the rods may bear against the hub 18 . the force of the jacks is applied to the standard but since the brackets 35 and 44 firmly engage and grip in the rim flange , the force is transmitted to the rim and will serve to move the entire tire - rim assembly relative to the vehicle . the same type of difficulty of laterally moving a heavy assembly inwardly toward the vehicle for mounting a new tire is often experienced . the jacks illustrated for moving the tire away from the vehicle may also be used to aid in placing the entire assembly in proper position on the wheel studs 17 when mounting a new tire to the vehicle . referring to fig3 there is diagrammatically illustrated how one jack would be used on each side of the circle of studs 17 for jacking the adapter of the wheel rim toward the hub for mounting purposes . tools are available with most servicing units for removal of the studs 17 from a wheel hub and three such studs are removed at approximately 3 o &# 39 ; clock and three studs are removed at approximately 9 o &# 39 ; clock in the circle of studs on the wheel hub . a pair of tie rods 70 and 71 are threaded into the stud holes 72 and 73 respectively for passing through the holes in the plate 53 on the jacking cylinder 55 where it is secured in place by nuts 74 and 75 on the tie rods . the holes in the jack plates are precisely spaced apart equal to the spacing between two studs 17 on the wheel hub . the piston rod with its pad 67 may engage and push upon the adapter ring 16 and , as the rod extends , force will be applied to move the adapter of the rim assembly toward the wheel hub until the rim studs 17 pass through the holes , such as 76 in the adapter , so that the assembly is properly related to the wheel hub of the vehicle . once a few nuts are applied to the rim studs 17 , the jacking assembly is removed , the studs replaced , which were removed , including the stud which was in hole 77 , between the holes 72 and 73 , so that the entire ring of studs will secure the tire rim assembly to the hub of the vehicle . in servicing yards , tire wheel assemblies may not always be in an upright storage position , but may be laid down flat on the side of the tire . the present lifting device may be utilized for raising a tire from such a horizontal position . the securing of the brackets in the rim of the tire may be used to lift the tire from a laying - down position to an upright position . the bracket and standard will exert the forces necessary to elevate the tires even though it weighs several thousand pounds .