Holland Company LP

Holland LP

Robert V Norby

Stefan T Pendrick

Henry F Ninstil

René A Hunziker

A flash butt rail welding welderhead combines in a single unit, the ability for the three functions of rail pulling, flash butt forging and maintaining the 'after forged' displacement without any change in platen position such that shearing may be accomplished in three stages, a single stage, multiple stages or a progressive stage, all while maintaining clamping and stretching force on the rails.

Rail welderhead shear apparatus

A railroad car truck frame jack clamps a side frame, the clamps suspend a cross tube which in turn suspends one or more cylinders which raise a bolster plug thereby lifting the bolster relative to the side frame and decompressing the truck springs for repair or replacement, twisting loads being minimized in the preferred embodiment by a lost motion slot.

Railroad car truck spring jack

A motor vehicle body is adapted for use on railroad tracks by being elevated by 'high rail' unit steel wheels, but with the motive force being supplied by the vehicle's road wheels, a loaded gage axle assembly having vertical loads imposed by hydraulic rams, and horizontal loads being supplied by horizontal rams through split axles and steel wheels to the railroad tracks is calibrated to measure track strength and adapted to be operatively connected to electronic data recording and comparing apparatus.

Growing community of inventors

Munster, IN, United States of America

Robert V Norby