Abstract: A method and apparatus for dispensing welding flux involving a flux supply and dispensing system comprising a tank assembly that includes an upper flux receiving chamber, a lower flux dispensing chamber, and a flux transfer chamber intermediate the upper and lower chambers. Flux is supplied to the flux receiving chamber either by a vacuum pick up arrangement or a suitable gravity or mechanical feed arrangement, and screened. The floors of the upper chamber and transfer chamber are each ported and equipped with separate plug valves arranged to move vertically to open and close with a plug type fit the respective ports for sequentially transferring a welding flux charge first from the upper chamber to the transfer chamber, and then from the transfer chamber to the lower dispensing chamber, under the control of a sealed pneumatic actuation system that keeps the flux from fouling the moving parts involved.

Abstract: A transformer power regulator and method of utilizing same for efficiently and variably delivering A.C. power to a load by regulating only a portion of the input voltage equal to maximum expected voltage variation in the input voltage source while transmitting most of the power directly to the load through some of the transformer windings. The laminated core structure is continuous and uninterrupted including primary and secondary winding leg portions and back portions defining a main magnetic flux circuit. A pair of control winding leg portions, with bridging portions therebetween define a separate control magnetic flux circuit. Variable energization of a pair of control windings, one on each of the control winding leg portions, variably controls the magnetic reluctance of the control magnetic flux circuit. A primary winding on the primary winding leg portion is connectible to an A.C. voltage source.