Abstract: An automobile steering lock comprising an elongated tubular body member, an elongated rod member to move in telescopic manner in the body member, a housing formed around one end portion of the body member for accommodating a locking mechanism and two biasing springs and two rod-like bearings, a plurality of first annular grooves in the middle portion of the rod member and two second and third annular grooves near one end of the rod member, the second and third annular grooves being engageable by tenons of the rod like bearings biased by the springs to prevent the rod member from wholly slipping out of the body member when the rod member is pulled out of the body member in adjusting the length of the lock to attach it on a steering wheel of a car.

Abstract: An antitheft device for attachment to a steering wheel of an automobile comprising an elongated body member having a passage extending along an axis therethrough, first hook means secured to the body member for engagement with a portion of the steering wheel wherein the first hook means engage the wheel from the inside thereof with the body member extending outward beyond the periphery of the steering wheel, an elongated rod member adapted to move in telescopic fashion in the passageway of the body member along the axis, second hook means secured to the rod member for engaging the inside portion of the steering wheel dimetrically opposed to the first hook means, and means associated with the body member engaging the rod within the passage that allows the rod member to extend with respect to the body member to be locked at any of a plurality of positions.