Patent ID: 7703410

Claim:
A gauge, comprising: (a) a gauge face having indicia; (b) a pointer configured to indicate a position on the gauge face based on input received from measurement; and (c) an instrument for driving the pointer, comprising: a flexible member connected to the pointer; a first pulley configured to respectively wind up both ends of the flexible member; a controlling device for preventing the flexible member from deviating from the first pulley; a second pulley spaced apart from the first pulley and configured to roll up the center portion of the flexible member; a motor configured to rotate the first pulley based on input received from the measurement and to drive the pointer about the gauge face; a winding-up pulley coupled to the motor, and configured to at least partially roll up and move the flexible member disposed between the first pulley and the second pulley; a tension member configured to provide one end portion of the flexible member with sufficient tension to prevent sag or looseness of the flexible member disposed between the first pulley and the second pulley a mounting portion for carrying or retaining the one end portion of the flexible member, wherein the flexible member is suited to substantially make a circuit of the first pulley from the mounting portion, turn at the second pulley, travel around the winding-up pulley, reach the first pulley, and bind to the tension member such that the length of the flexible member which is uncoiled from the first pulley during the traveling of the pointer from its initial position is longer than the travel distance of the pointer.