Abstract: A paging system in which an address code is transmitted at a lower transmission rate than message code and a discrimination code defines the boundary between the address and the message. The receiver includes a low pass filter with a cut-off frequency switchable between the reception rate for the address and the reception rate for the message in response to the discrimination code.

Abstract: In a radio communication apparatus comprising a P-ROM (32), a loudspeaker (34), and/or a display unit (36) and carrying out a receiving operation of selectively receiving a call signal specific to the apparatus by the use of an identification number read out of the P-ROM, a predetermined signal to be produced after the call signal is defined to inhibit or disable the receiving operation carried out after reception of the predetermined signal. The loudspeaker may be driven under control of a reception controller (31) to continuously produce an audible signal when the predetermined signal is received. The display unit may also be driven to provide visual displays representative of particular messages conveyed by the predetermined signal. The particular messages may be "lost" and "theft" codes and a telephone number.

Abstract: A radio paging receiver of the type having a display unit includes a plurality of storage cells respectively for storing received message words therein, and a data processing unit which is arranged to detect a match between a received address word and a subscriber's address word and proceed to sequentially store the received message words into the storage cells. A numeral indicating the degree of freshness of the received message word is generated and displayed simultaneously with the message word in response to to the operation of a reset key. An indication is given that a message word will follow if the length of message words is greater than the capacity of the display unit. A symbol is subsequently given with the display of the next message word to indicate that the message word being displayed is a continuation from the previous one if said total is greater than the number of digits.

Abstract: An automatic hot melt adhesive dispensing gun is connected by a swivel assembly to a working arm of a programmable working machine. The swivel assembly includes a hollow spindle journalled in the gun block of the gun. The free end of the spindle is connected to a hot melt adhesive source via a hose. The gun block rotates relative to the spindle. The gun can thus move in response to the movement of the working arm without exerting harmful torques on the hose.

Abstract: A radio paging receiver which generates an alert tone and a message display on receipt of a selective calling signal, includes a manually operated non-lock type switch which generates first and second control signals. The first control signal stops the generation of the alert tone while the second control signal initiates a time-out period after which the displayed message is turned off. Depressing the switch produces the first control signal while its release produces the second control signal.

Abstract: A battery saving circuit for use in a portable radio communication apparatus adapted to receive a communication signal which includes a preamble and identification codes. The apparatus includes a receiver section, a waveform shaper section, a decoder section and a power supply. The battery saving circuit, forming a portion of the decoder section, periodically generates a first control signal which causes the power supply to be electrically connected to the receiver and waveform shaper sections. A second control signal is generated to disconnect the receiver and waveform shaper sections from the power supply when, during an assigned time period, the preamble code is not detected. A third control signal is generated to maintain electrical connection between the power supply and the receiver and waveform shaper sections for a selected period of time after the preamble is detected.

Abstract: Disclosed is a process for encapsulating in cement a boric acid slurry which is at least about 30% boric acid. To the sulrry is added about 3.5 to about 4.5% dispersing agent, about 0.02 to about 0.03 ml/g of a cement retarder, up to about 0.4% of a hardener, and sufficient cement to bring the weight ratio of water to cement to about 0.4 to about 0.6. Also disclosed is a cement composition produced by said method.

Abstract: In a pulse detector of a receiver for use in a digital radio communication system comprising a low pass filter supplied with an input signal, a first resistor and a capacitor which are connected in series between an output terminal of the low pass filter and ground to constitute a longer time constant integrating circuit, a second resistor connected in parallel with the first resistor through a switch controlled by a control input, the first and second resistors and the capacitor constituting a shorter time constant integrating circuit, and a comparator with one input connected to the output of the low pass filter and the other input to a juncture between the first and second resistors and the capacitor, the potential of the juncture being utilized as a reference potential of the comparator, there is provided a switch connected between the juncture and the ground in series with the capacitor.

Abstract: A radio paging receiver is provided in which messages are continuously written into a first memory for subsequent display. A second memory is used to selectively prevent the erasure of messages written into the first memory when the first memory capacity has been exceeded.

Abstract: A composition is disclosed of about 0.45 to about 5.5 percent of an organic water-soluble binder which has a thermal decomposition temperature of about 100 to about 500.degree. C. and a viscosity of less than about 10,000 poises at 20.degree. C., about 1.5 to about 4.0 percent of a starch which has a thermal decomposition temperature of about 250 to about 535.degree. C. where the thermal decomposition temperature of the binder and the starch are at least about 50.degree. C. apart, about 1.5 to about 3.5 percent cellulose, about 0.5 to about 2.0 percent of a dispersant, and about 7 to about 11 percent water, and about 75 to about 89 percent of a high temperature refractory material such as stabilized zirconia. The composition is de-aired, formed into a shape, and fired to produce a ceramic structure.