Abstract: Methods for monitoring an amount of a non-liquid product within a chemical delivery system may include determining a valve opening duration for the emission of the non-liquid product, comparing the valve opening duration to a vessel full on time, and, when a difference between the valve opening duration and the vessel full on time exceeds a predetermined threshold, sending a low product level alert. A system for monitoring an amount of non-liquid product may include a chemical delivery system, a control valve in fluid communication with a water system, and a control unit. The control unit may be programmed to: determine an opening duration of the control valve, determine a vessel full on time, compare the opening duration to the vessel full on time, and, when a difference between the opening duration and the vessel full on time exceeds a predetermined threshold, send an alert to an alert device.

Abstract: A process for making collective packing unit boxes, comprising the steps of feeding a plurality of unit boxes by a first conveyor, thrusting the unit boxes one by one from the first conveyor to a second conveyor perpendicular thereto, thereby to cause the front side of each unit box to contact with the backside of the immediately preceding unit box, respectively, collecting a predetermined number of unit boxes together when the unit boxes are thrust from the first conveyor to the second conveyor, bringing down two flaps extending from the opposite edges of the collected unit boxes inwards, daubing an adhesive on the top flaps of the unit boxes, daubing an adhesive on the upper portions of the two sides of each unit box perpendicular to the contacting sides thereof, pressing a common lid onto the top of the collected predetermined number of unit boxes so that the lid may be adhered on the top flaps of the collected unit boxes, and folding the two opposite side edges of the lid so that the side edges are adhere

Abstract: A needle selection mechanism for an automatic knitting machine, comprising at least two selector levers mounted to a carriage which is adapted to move along a needle retainer in which are disposed a plurality of selectors for knitting needles, wherein each selector is individually engageable with one of the selector levers, and different selectors are engageable with different selector levers, and wherein the selector levers set the selectors to either "knit" or "welt" positions.