Patent ID: 7287334

Claim:
A railroad wheel reference groove locating gauge for determining a measurement of an annular reference groove machined in a face of a railroad wheel spaced radially outwardly from an axle on which the wheel is mounted a predetermined distance indicative of the wheel diameter, with the measurement being taken while the wheel remains connected to the axle, the gauge comprising: (a) an elongatedmember having a first end and a second end; (b) indicia on the elongate member at the first end thereof indicative of a length along the elongate member, said indicia exclusively adjacent the reference groove when said gauge is secured to said axle; and (c) an attachment element at the second end of the elongate member for detachably securing the gauge relative to an axis of rotation of the axle, with the elongate member extending radially to the first end thereof adjacent the reference groove on the wheel for enabling the use of the indicia to determine the diameter of the reference groove.