Traction motor suspension

Claim 1

IN A MOTORIZED RAILWAY TRUCK INCLUDING A TRUCK FRAME HAVING CROSS MEMBERS AND A WHEEL AND AXLE ASSEMBLY ADAPTED TO BE DRIVEN BY AN AXLE HUNG TRACTION MOTOR, A SUSPENSION ARRANGEMENT FOR SAID MOTOR COMPRISING: (A) FIRST AND SECOND MOTOR NOSE SUSPENSION MEMBERS HAVING ANNULAR CONCENTRIC SURFACES, ONE OF SAID MEMBERS ADAPTED TO BE MOUNTED ON THE NOSE OF SAID TRACTION MOTOR AND THE OTHER MEMBER ADAPTED TO BE MOUNTED ON A TRUCK CROSS MEMBER SO THAT SAID ANNULAR CONCENTRIC SURFACES ARE IN OPPOSED RELATIONSHIP; (B) AN ANNULAR RUBBER PAD ASSEMBLY INCLUDING AN OUTER ANNULAR RUBBER PORTION, AN INNER ANNULAR RUBBER PORTION AND AN ANNULAR METALLIC SHIM THEREBETWEEN BONDED TO SAID INNER AND OUTER RUBBER PORTIONS, SAID RUBBER PAD ASSEMBLY BEING COMPRESSED BETWEEN THE ANNULAR CONCENTRIC SURFACES OF SAID MOTOR NOSE SUSPENSION MEMBERS TO A DEGREE SUFFICIENT TO PREVENT STRESS REVERSALS IN THE RUBBER PAD DUE TO COMPRESSIVE FORCES EXERTED THEREON BY THE MOTOR AND EXHIBITING A TWISTING SHEAR SPRING CONSTANT SUCH THAT MOTOR NOSE UPON RELATIVE ROTATION OF THE TRUCK MEMBER AND THE AXLE UPON WHICH THE MOTOR IS HUNG; (C) AND A GENERALLY HORIZONTAL LINK MEMBER HAVING ONE END PIVOTALLY CONNECTED TO THE MOTOR AXLE END AND THE OTHER END PIVOTALLY CONNECTED TO AN ADJACENT TRUCK CROSS MEMBER SO THAT SAID MOTOR NOSE SUSPENSION AND SAID LINK MEMBER COOPERATE TO EXERT LATERAL RESTRAINING FORCES ON OPPOSITE ENDS OF SAID MOTOR AGAINST LATERAL MOVEMENT THEREOF ON SAID AXLE.