Lightweight tilt mounting heads

A tiltable mounting comprising a base, a tiltable support member pivoted thereto and reactionary moment producing means, located between and operated from said base and tiltable support member for producing a reaction equal to the out of balance moment generated by the weight of an article mounted on said tiltable support member as the center of gravity of the article moves about the vertical, said reactionary moment producing means comprising mounting means on said base for pivotably locating a slide means, mounting means on said tiltable support member for crankedly locating a pivotable spring guide means having a spring compression means thereon, and a spring located on said spring guide means compressible between said slide means and said spring compression means wherein the reactionary moment at the tiltable support member produced by the action of the pivotable slide means and spring combined is equal to the out of balance moments produced as the center of gravity of an article mounted on said tiltable support member rotates about the vertical.