members for pivotal motion about vertical axes the arms themselves have horizontal pivot hinges near each end thereof and a hinge permitting each arm to twist the tow bar provides for efficient backing application_number US 61672696 A description with reference now to the figures a tow bar 10 will be described which forms a first embodiment of the present invention while the tow bar 10 is illustrated as being connected between a towing vehicle 12 and a towed vehicle 14 the tow bar can be used between any two devices where forces need to be transferred between the devices in a manner within the capability of the tow bar 10 with reference to fig1 the tow bar 10 can be seen to include a towing member 16 which is rigidly attached to the towing vehicle 12 the member 16 can be bolted to the towing vehicle 12 through bolt apertures 17 preferably member 16 is attached to the frame of vehicle 12 but could be attached to a bumper if desired member 16 could also be attached to vehicle 12 by other techniques such as welding or even be formed as part of the vehicle itself an upper pivot 18 is mounted.