Abstract: Pressure actuated monitoring means for a vehicle having wheels carrying tubeless tires, includes pressure sensors mountable on each wheel. Each sensor has a housing receiving direct pressure of air from the interior of a tire. A flexible member in the housing moves in response to air pressure in the tire when the pressure falls below a critical predetermined magnitude. A switch on the housing has contacts which open and close in response to movements of the flexible member. The sensor is adjustable to respond to pressure of any predetermined magnitude. The monitoring means includes axles connected to the driving wheels. The axles carry slip rings continuously wiped by wiper arms carried by stationary axle housings. Alarm lamps are connected in circuit with the wiper arms. The monitoring means may also include spindles carrying freely rotatable wheels. Fixed spaced contact rings on the spindles are wiped by continuously rotating wiper arms carried by the wheels on the spindles.

Abstract: A device for the processing of linguistic information containing a keyboard unit, an electronic processing unit and an output registration unit, with the keyboard unit processing keys for symbols distributed over a right hand side group to be operated by the right hand and a left hand side group to be operated by the left hand. The device has an electronic processing unit containing a memory, a decoder and a control unit, with the keyboard unit possessing space keys, the keys for symbols in the right hand side group having priority over the keys for symbols in the left hand side group. The keys for symbols in the right hand side group have priority from left to right and from top to bottom; the keys for symbols in the left hand side group have priority from right to left and from top to bottom.