Abstract:
Fibrous glass strands are impregnated and coated with an elastomeric material by passing each strand through an immersion bath and between a pair of wheels rotating in circumferential contact. The wheel contact surfaces are elastomeric annuli capable of being deformed around each moving strand to envelop it and perform the functions of a die in removing excess impregnant therefrom. Pressure exerted by the wheel elastic surfaces is varied as a means of selectively controlling the impregnant weight and uniformity per unit length of strand.
Abstract:
The disclosure embraces a method of and apparatus for joining elongated bodies fashioned of platinum alloy to a floor section or plate for a glass stream feeder wherein a flange on each body is provided with a linear ridge of restricted area which is fused or welded by electric current to the floor section or plate to establish a seal or bond between the body and the plate.
Abstract:
Fibrous glass strands are impregnated and coated with an elastomeric material by passing each strand through an immersion bath and between a pair of wheels rotating in circumferential contact. The wheel contact surfaces are elastomeric annuli capable of being deformed around each moving strand to envelop it and perform the functions of a die in removing excess impregnant therefrom. Pressure exerted by the wheel elastic surfaces is varied as a means of selectively controlling the impregnant weight and uniformity per unit length of strand.
Abstract:
METHOD AND APPARATUS FOR CONTROLLING THE LEVEL OF A BODY OF MATERIAL IN A CONTAINER WHEN REPLENISHING MATERIAL REMOVE FROM THE BODY, BY SENSING LEVELS OUTSIDE OF A PREDETERMINED RANGE OF LEVELS OF THE MATERIAL, INCREASING THE RATE OF FEED OF THE REPLENISHING MATERIAL BY AN AMOUNT PROPORTIONAL TO THE TIME THE LEVEL IS BELOW THE RANGE, AND DECREASING THE RATE OF FEED OF THE REPLENISHING MATERIAL BY AN AMOUNT PROPORTIONAL TO THE TIME THE LEVEL IS ABOVE THE RANGE. THE PREVENT OSCILLATION OF THE SYSTEM AND ATTAIN STABILITY THE RATE OF FEED IS FURTHER INCREASED BY
A PREDETERMINED CONSTANT AMOUNT WHEN THE LEVEL IS BELOW THE RANGE, THIS FURTHER INCREASE IN FEED RATE BEING REMOVED WHEN THE LEVEL RETURNS TO THE RANGE. THE RATE OF FEED IS FURTHER DECREASED BY A PREDETERMINED CONSTANT AMOUNT WHEN THE LEVEL IS ABOVE THE RANGE, THE FURTHER DECREASE IN FEED RATE BEING REMOVED WHEN THE LEVEL RETURNS TO THE RANGE.
Abstract:
Apparatus for and method of packaging a linear fibrous element in a rotated perforated cannister by withdrawing air from the cannister through its bottom wall to move air through the package during package formation to prevent freedom of movement to the element in the package and simultaneously withdrawing air uniformly from all sides of the cannister through its perforated sidewalls to reduce air turbulence in the cannister to promote ordered collection of the fibrous element.