Abstract: A stationary pulling unit with a movable workpiece provides for an on center locating point under the operating unit for coupling a flaring tool to the stationary pulling unit and heating the area to be flared with torches in a heat cycle and in a pulling cycle as the flaring tool is pulled through the opening in the workpiece.

Abstract: A plurality of coaxial pins are cooperatively arranged to provide a pin-joint coupling for three or more interrelated components and provide the capability of removal of one component without disturbing the adjustment and operation of the other components.

Abstract: Variable dual orifices in the restricted portion of the flue between the kiln and the preheater provides a controlled bypass of 0 to 100% of the kiln gases around the preheater and prevents short circuiting of process materials from the precalciner and mixing chamber to the kiln and provides a means for adjusting the orifice and system pressures to thereby provide stability of operation and control over the entire range of bypass; positive isolation of kiln gases from preheater gases during 100 percent bypass operation is ensured.

Abstract: A means and method for processing cement raw material containing fuel of high volatile content in a reinforced grate preheater kiln system by collecting the unburned volatiles of the high volatile fuel from the pellet bed and utilizing the collected volatiles as a fuel source elsewhere in the system.

Abstract: Model insulation structure representative of the most critical insulation in a stationary induction apparatus is placed in the bottom of the oil tank and is provided with spaced conductive electrodes forming a capacitor having sufficient capacitance for measuring the dissipation or power factor of the insulation.

Abstract: A detachable mounting and support arrangement for the stationary spray tube which extends through a rotary drum. A tension cable extends through the spray tube and is anchored exteriorly of the drum and spray tube at each end of the drum.

Abstract: A locking means for the impellers of an impact crusher rotor is disclosed wherein the impellers are partly within axially extending peripheral slots which are diametrically opposite each other; semi-cylindrical cavities are formed in the face of the leading wall and the face of the impeller which cooperate to define a cylindrical bore extending parallel to the axis of the rotor; within the cylindrical bore a wedge lock is inserted which is a two-part device each having a flat surface complementary to each other and machined at an angle to the outside diameter of the composite wedge lock; the diameters of the outer surface of each wedge portion is centered at different locations thereby effectively preventing rotation of the wedge lock; a key on the convex surface of the smaller wedge portion cooperate with a recess formed in the semi-cylindrical cavity of the face of the leading wall to prevent axial movement of the wedge portion; a knock-out rod is provided to release the wedge lock for replacing of the impe

Abstract: In a gyratory crusher the crusher head is mounted on a drive shaft which is driven by an eccentric. The eccentric is continually rotated to cause the head to gyrate for effecting the crushing of material. an antispin arrangement is provided to prevent rotation of the crusher head in the same direction as the eccentric under idling conditions or no load conditions. The antispin device includes a pair of ratchets one of which is coupled to the shaft and the other of which is formed on the end face of a piston which is held in the counterbore of the drive shaft by a spring. A rectangular torsion rod extends through the center of the piston into a clearance hole bored in the crusher head drive shaft. The top of the torsion rod is anchored in the spider cap of the crusher.

Abstract: In a crusher having a crusher head shaft which is adjustable under load in the vertical direction and passes through a drive eccentric, clearance must exist between the shaft and the inner eccentric bearing. Due to the constantly rotating crushing load which moves angularly in the same direction as the drive eccentric is rotating and relative to the shaft which is stationary or slowly rotating in a direction opposite to the direction in which the drive eccentric is rotating, the inner race of the inner bearing of the eccentric should be an interference fit on the shaft. If the inner race is not an interference fit on the shaft, rapid wear will occur on both the shaft and the bearing bore. To overcome these two opposing requirements of a loose fit for adjusting purposes and a tight fit for good bearing practice, a composite bushing assembly is provided.

Abstract: Eccentric assembly removal is accomplished by operation of the crusher head shaft piston exerting an upward pushing force on the eccentric assembly and simultaneously applying high pressure fluid to the eccentric outer bearing housing.

Abstract: A single pull rod mechanism for actuating the contacts of each phase of a three-phase gas insulated circuit breaker arrangement utilizes acceleration springs only in relation to the second and third phases. Contact parting velocity is measured externally of the breaker thereby providing a check on the breaker operation without breaking the integrity of the gas tight tanks. An eight valve gas system utilizing an integral manifold provides for a complete circulatory arrangement for the high and low pressure gas for all three phases of the circuit breakers increasing the operating reliability of the circuit breaker while simplifying routine and major maintenance procedures.

Abstract: Sequential operation of a pair of switches in a required sequence of operation is ensured by means of a telescoping arrangement of tubes which are connected to associated ones of switch operating shafts. A positive stop prevents the movement of one telescoping member relative to the other out of sequential order.

Abstract: A strategically located series of spaced apart classifiers set at varying depths within a pelletizer pan operated to classify the forming pellets and also impart controlled energy into the forming pellets producing pellets of improved quality. Controlled classifying of the forming pellets stabilizes pellet output. With a stabilized pellet output obtained the need for driving the pellet pan with a variable speed device can be eliminated since pan rotation can be maintained at a constant speed.

Abstract: Reversible rotation grinding mills having a radially compartmentalized discharger with direction and volume control to laterally extending screens so as to obtain a constant "cut" of material or slurry flow to stabilize the volume and size consist of the discharge.

Abstract: An interphase support shaft is offset with respect to the rotation point to permit the shaft weight to serve as a counterbalance to the switch blade by locating its weight at a distance from the pivot point.

Abstract: The disconnect switch blade, prior to the engagement of the blade plug with the switch contact shoes, engages with a curved upper portion of an ice breaker lever to effect its pivotal movement and thereby move a plurality of associated ice breaker bars from between the switch contact shoes to remove accumulated ice from the contact shoes.

Abstract: Grate burner fuel supplies additional heat to the grate preheater for accomplishing more calcining. A cooler recoup system directs cooler recoup air to the grate fuel burner as preheat combustion air for the fuel burner. The cooler recoup air is also directed to the grate preheat zone as preheated combustion air for fuel in the pellet bed. Cooler recoup air is also directed to the drying zone. The cooler recoup system is controlled so that excess cooler recoup air is bypassed to the waste gas system to dump excess air. Also, a cooler recoup fan speed or damper is regulated to control kiln firing hood pressure by varying the flow. In addition, there is provided the cooler recoup excess air bypass damper for controlling duct pressure to stabilize air flow in the system by varying the flow to the waste gas system.

Abstract: Liquid SF.sub.6 from the high pressure storage tanks within the gas sealed enclosure of a multi-interrupter gas insulated circuit breaker is collected in a tank located externally of the circuit breaker enclosure. A float within the liquid collecting tank operates a micro switch to effect operation of a solenoid actuated valve to pass the liquid SF.sub.6 into the low pressure system of the circuit breaker wherein it again returns to its gaseous state. The collected SF.sub.6 gas in the low pressure system is pumped back into the high pressure system through a compressor.

Abstract: Providing the contact spacer of a high voltage outdoor switch with a reduced number of inboard contacts to reduce the friction experienced in opening and closing the switch without reducing the switch rating.

Abstract: A circuit breaker of the oil type having an operating mechanism for providing an improved force operation of the contact lift rod. The mechanism includes a linkage arrangement with a scissor-type toggle to provide a mechanical advantage for increasing the force for closing the contacts. In addition, the improved pull rod mechanism is particularly well adapted for location in relatively small enclosures.