References in periodicals archive ?
The swivel construction of this new series features a drop forged steel top plate and horn base, legs made of 1/4" plate steel robotically welded both inside and outside to the horn base, and 3/4" diameter integrally forged steel kingpin that carries Hamilton's lifetime guarantee against failure.
The swivel construction of the units feature a drop forged steel top-plate and horn base, legs made of 1/4 in.
Among different cases reported, there was history of head shaking and rubbing of horn against hard objects, swelling and softening of horn base (Fig.