Abstract: The disclosure relates to the forming and printing of paper products, particularly paper products such as self-mailers, made from a moving web of paper which is printed on a continuous forms press and folded and glue sealed in one pass through a folder. The disclosed self-mailer includes a return order envelope. The self-mailer is printed on stock of a size and thickness to conform to postal regulations with both sides of the stock being printed, perforated on press to enable tear-off of the return portion of the self-mailer, scored to enable folding, and provided with a mailing window as a continuous form. Laser printing is used for subsequent application of an individual's name and address.

Abstract: A battery charge indicator is permanently incorporated into a battery to indicate the state of charge. The indicator includes a compressible chamber which is filled with a viscous gel and which is exposed to the expandable cathode of the battery. As the battery discharges, the cathode expands thus causing the gel within the chamber to be extruded out through an outlet into a viewing channel in an overlying disk. The amount of gel flowing into the viewing channel is proportional to the amount of expansion of the cathode and, thus, indicates the amount of discharge and, conversely, the remaining life of the battery.

Abstract: Seamless steel tubes suitable for use as grades of casing and line pipe having yield strengths in excess of 70,000 psi, without being heat treated, are made of an alloy comprising, by weight, about 0.10% to 0.18% carbon, about 1.0% to 2.0% manganese, about 0.10% to 0.16% vanadium, about 0.008% to 0.012% titanium and about 150 parts per million to 220 parts per million nitrogen, the balance comprising iron and incidental impurities. Strains are applied to the shell in a stretch reducing mill below the T.sub.nr of the steel and above the A.sub.r3 to provoke dynamic recrystallization. The nitrogen and vanadium are preferably introduced to the steel during alloying in the form of a VN alloying agent. The vanadium, titanium and nitrogen are predominantly present as vanadium nitride and titanium nitride. The steel may also comprise 0.03% to 0.05% aluminum by weight.

Abstract: The disclosure relates to an analog solid state display device for presenting an analog display of the state of charge and voltage of a battery, typically a rechargeable battery. There is disclosed an apparatus for deriving a signal which is a function of the state of charge of the battery to drive an analog solid state indicating display by such signal. The analog solid state indicating display can comprise an analog liquid crystal display of the voltage and state of charge of a battery to which the display is connected. In addition, there is disclosed a circuit for driving an analog liquid crystal display of the state of charge of the battery with the analog liquid display being disposed within the housing of a tool or appliance which contains the battery. The disclosure also relates to the indication of the state of charge of a battery by an analog liquid crystal display when the battery is under load. The display can comprise an analog bar graph presentation.