Odometer

Claim 2

An odometer for use in connection with an automotive vehicle having a ground-engaging wheel including a rigid portion and a pneumatically inflated tire, said odometer comprising: a. a disc having a planar face, b. a disc mount affixable to a rigid portion of said wheel whereby said planar disc face is disposed parallel to the wheel plane and concentrically to the wheel axis, and is rotatable with said wheel, c. a roller mount including a hub mounted on said disc mount for rotation relative thereto about the wheel axis, and a rod-like member carried by and extending generally radially from said hub, d. securing means preventing rotation of said roller mount with said disc mount, e. a roller carried by said rod-like member coaxially therewith and for rotation relative thereto with its periphery in frictional engagement with said planar disc face in spaced apart relation from said wheel axis, f. manually actuated adjusting means to vary the spacing of said roller from said wheel axis, comprising means operable to move said roller axially along said rod-like member, and g. counting means operable to count and record the revolutions of said roller.

Claim 3

An odometer as recited in claim 1 wherein said rod-like member comprises a screw carried by said hub for manual rotation about its own axis, and wherein said roller mount further includes: a. a threaded nut mounted operatively on said screw, said roller being rotatably mounted on said nut, and b. means preventing rotation of said nut with said screw but permitting movement of said nut axially along said screw.

Claim 4

An odometer as recited in claim 1 wherein said rod-like member is connected pivotally to said hub for movement about an axis generally at right angles to both the hub axis and said rod-like member, whereby said roller may be moved selectively into or out of engagement with said desc, and with the addition of: a. resilient means biasing said rod-like member in a direction to move said roller out of engagement with said disc, and b. electrically operable pivoting means Operable when energized to move said rod-like member pivotally against said resilient biasing means to urge said roller against said disc.

Claim 5

An odometer as recited in claim 1 wherein said rod-like member constitutes an elongated screw carried by said hub for manual rotation about its own axis and for pivotal movement about an axis generally at right angles both to the hub axis and said screw, whereby said roller may be moved into and out of engagement with said disc; said roller mount further including a nut operably mounted on said screw and movable axially therealong in response to rotation thereof, and means preventing rotation of said nut with said screw; wherein said counting means includes an electric switch mounted on said nut so as to be movable along said screw with said nut, a switch actuator carried by said roller and operable to actuate said switch once during each revolution of said roller, an electrically operated counter, and an operative electric circuit including said switch, said counter and a source of electric power; and with the addition of: a. resilient means biasing said screw pivotally in a direction to move said roller out of engagement with said disc, b. electrically operated pivoting means operable when energized to pivot said screw to urge said roller against said disc, c. an operative electric circuit including said pivoting means and a source of electric power, the operative circuits of said counter and said pivoting means including a conductor common to both circuits, and d. a normally operable control switch disposed in said common conductor.