Show NEW BALL BEARING VIBRATING SCREEN marked by simplicity of construction and requiring it is is asserted a minimum upkeep expense and possessing adaptability to almost any fine screening condition a new ball bearing vibrating screen has just been announced anno by link belt company of philadelphia chicago and indianapolis this screen is a mechanically operated device reduced du ced to the simplest possible mechanism viz one moving part which rotates in large oversize ball bearings the vibrator has no cams springs striking blocks or levers to adjust or renew it simply consists of a shaft driven at suitable speed from any common source of power this shaft thrown out of balance by adjustable counterweights imparts vibrations to the screen box on which it is mounted and these in turn are transmitted to the screen cloth secured under tension in the box there are five standard sizes viz ft ft ft ft and ft and each ca can n be furnished with either eithe r one or two screening surfaces giving a wide application for materials of varying size and capacities screen cloth the screen cloth is placed upon the deck with its two longitudinal edges bent up binders are provided on the fine mesh cloths claths for protection against tearing two flanged clamp plates engage these binders or the bent edges of the cloth and by tightening the wing nuts on each side the cloth can be quickly stretched to the desired tension sa s1 on these side clamp plates serve the fourfold four fold purpose of stretching the screen cloth clamping the cloth to its deck eliminating wear of screen box frames and preventing leakage along side edges A longitudinal vibrator strip assists the screening action by imparting raps to the cloth minimizing wear and blinding binders are quickly detachable and can be reused re used and screen cloths claths which are of standard width can be obtained unrolls in rolls from the cloth m manufacturers nu rs A feed hopper attached to the receiving end of screen box vibrates with it controls the feed and uniformly spreads the material over the screening surface automatic regulating gate for screening scree screening nin tg materials containing small parti particles clesi such as brick clay etc the vibrating feed hopper is fitted with a counterweighted swinging feed gate this combination makes it easy to receive a feed and spreads the material over the width of screen clot cloth h at just the right speed moreover adding about of the screen and obviating two feet feet to the effective length the use of mechanical distributors |