Blanket cylinder

Once the plate Is dampened and inked, the ink is impressed on the substrate as it is conveyed between the blanket and Impression cylinder. This printing configuration can be contained within a single printing station. Other configurations can involve the use of multiple plate and blanket cylinders which share a common impression cylinder, or where no impression cylinder is used and two blanket cylinders impress images on both sides of the substrate simultaneously as the substrate is conveyed between them. 

About two-thirds of the N2 produced industrially is supplied as a gas, mainly in pipes but also in cylinders under pressure. The remaining one-third is supplied as liquid N2 since this is also a very convenient source of the dry gas. The main use is as an inert atmosphere in the iron and steel industry and in many other metallurgical and chemical processes where the presence of air would involve fire or explosion hazards or unacceptable oxidation of products. Thus, it is extensively used as a purge in petrochemical reactors and other chemical equipment, as an inert diluent for chemicals, and in the float glass process to prevent oxidation of the molten tin (p. 370). It is also used as a blanketing gas in the electronics industry, in the packaging of processed foods and pharmaceuticals, and to pressurize electric cables, telephone wires, and inflatable rubber tyres, etc. 

A printing blanket with a specially manufactured layer designed to give or compress, under pressure from the printing plate and impression cylinder. Compressible blankets resist smashing and usually print a sharper halftone dot. 

In lithography - a rubber coated fabric mounted on a cylinder that receives the inked impression from the plate and transfers (offsets) it to the paper. Such blankets are also mounted on the impression cylinders of sheeted gravure presses. 

Carbon monoxide is a stable gas. Metal carbonyls are relatively unstable and sensitive to light and moderately high temperatures. They may spontaneously ignite on contact with air. Volatile agents are stored in steel cylinders otherwise, agents are stored in steel or glass containers. Metal carbonyls may be stored under an inert gas blanket, such as nitrogen, to prevent contact with the air. 

Any residual material left in the shuttle is blanketed by a slow flow of dry nitrogen gas to prevent fouling of the shuttle between uses. Pneumatic cylinders, driven from solenoid valves that are controlled by a power- and event-controller, provide the shuttle motion, and position is confirmed by Hall Effect detectors on the pneumatic cyhnders and monitored by the power and event controller. 

The reactionis conducted in a 2-1. round-bottomed flask equipped with a dropping funnel, Hershberg stirrer, thermometer, and reflux condenser. A T-tube attached to a cylinder of dry nitrogen is inserted in the top of the condenser in order to keep the reaction mixture blanketed with nitrogen. 

Procedure. The sodium amalgam is prepared as described above (see Preparation of Sodium Amalgam Sand of 2-thiophenccarboxylic acid), blanketed with 200 ml. of ether, and the 3-methylthiophene is added. Ethyl chloride is condensed from a cylinder into a tared flask cooled in an ice bath, poured into 4(X) ml. of ice cold ether, and added rapidly to the reaction flask maintained at 10-20°. The mixture is stirred for two hours at room temperature. Carbonation is then carried out as described above under 2-thiophenecarboxylic acid and the product is purified in the same manner (one-half the amount of water and acid being required). The white crystalline needles melt at 119-121°. 

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