Abstract: A solution of an organic compound containing at least a polymer is treated by adding an amount of water to said solution, distilling the organic compound to recover the organic compound, and incinerating the remained aqueous solution containing the polymer.

Abstract: A pulse-echo ranging system includes an improved target and a ranging device which emits pulses of electromagnetic radiation toward the target and receives pulses reflected from the target. The target is provided with a modulating mechanism for modulating the reflected pulses in a predetermined manner. The modulating mechanism allows the ranging device to distinguish pulses truly reflected from the target from noise and pulses reflected from objects other than the target. More specifically, the modulating mechanism may include a reflector which reflects the pulses at plural distances from the ranging device. The reflector may include a single reflective surface coupled to an oscillating vibrator, or plural reflective surfaces spaced at different locations from the ranging device.

Abstract: A GPS antenna (11) is removably attached to an electronic survey instrument or station (1). The GPS antenna (11) is positioned away from the mechanical center point (P1) of the station (1). The station (1) has an operation unit that calculates the position (i.e., the GPS coordinates) of the mechanical center point (P1) of the station (1), based on the relative position of the center (P2) of the GPS antenna (11) with respect to the mechanical center (P1) of the station (1), the position of the center (P2) of the GPS antenna (11) obtained by a GPS, and the orientation of the station (10) relative to a reference direction.

Abstract: A survey system is provided having GPS receivers and using a global positioning system. A reference station main body is provided for surveying; and a plurality of GPS survey apparatuses are provided. They include at least a reference station and a measuring station. The reference station main body has a coordinate composite conversion unit which composes a composite coordinate value of a single coordinate system from GPS data input via an input portion and reference station data measured at the reference station main body. An output device outputs the coordinate value composed by the coordinate composite conversion unit.

Abstract: A paper delivery system having a printing unit with an upstream tractor and a downstream tractor disposed on an upstream side and a downstream side, respectively, of the paper delivery unit in the direction of paper delivery, a coupler coupling the upstream tractor and the downstream tractor to each other and a support shaft for supporting the coupler so that the coupler is movable in a direction transverse to the paper delivery direction and a resilient member positioned between the coupler and a fixed frame of the printing unit for energizing the coupler in a predetermined direction for constantly holding the coupler at a certain position in relation to the support shaft.

Abstract: An electronic survey instrument provided with an electronically controlled survey unit for metering at least one of a distance and an angle. A storage unit having two memory devices is provided for storing an operating system, a control program on one device and data on the other. The control program is created on a stand alone computer on the basis of the operating system. A central processing unit outputs a control signal for the electrically controlled survey unit in accordance with the operating system and the control program. A communication interface converts the control signal from the central processing unit into a signal suitable for the electrically controlled survey unit, and transmits the converted signal to the electrically controlled survey unit.

Abstract: An electronic survey instrument is controlled in accordance with a computer program to store a display image and a count value immediately before a power source is cut off. The display image and count values may then be restored without substantial initialization of the electronic survey instrument. The instrument includes a main system for operating in accordance with a survey program, and plural subsystems for operation based on a control signal from the main system. The main system saves information into a memory immediately before a power-off time and restores the information saved in the memory at the next power-on time. End information corresponding to the saved information is also saved into the memory to normally cut-off the power source. An information restoring process is canceled by the main system at the next power-on time when the end information has not been stored in the memory.

Abstract: A paper feeder capable of reducing its installation space and manufacturing cost, wherein a paper feed table which can be lifted or lowered being held horizontal is provided with an opening section. In order to load paper sheets onto the paper feed table directly from above, the opening section is made openable at the upper part thereof when the paper feeder is in a paper feeding state during which paper sheets are picked up and fed to a photosensitive drum or other device. The paper feeder also has a pick-up member for picking up the paper sheets thus loaded onto the paper feed table one after another starting with the top sheet in order to feed them to the photosensitive drum or other device.

Abstract: A paper feeder capable of reducing its installation space and manufacturing cost, wherein a paper feed table which can be lifted or lowered being held horizontal is provided with an opening section. In order to load paper sheets onto the paper feed table directly from above, the opening section is made openable upwards when the paper feeder is in a paper feeding state during which paper sheets are picked up and fed to a photosensitive drum or similar device. The paper feeder also has a pick-up member for picking up the paper sheets thus loaded onto the paper feed table one after another starting with the top sheet in order to feed them to the photosensitive drum or similar device.

Abstract: A gear power transfer mechanism for driving a developing unit in an image forming apparatus wherein the developing unit is selectively located closely to and separated from a photoconductive drum unit in conjunction with opening and closing operations of a cover. This gear power transfer mechanism includes a first bevel gear provided on a rotation axis on a side of the photoconductive drum unit coupled with a drive motor, a second bevel gear always engaging with the first bevel gear, a third bevel gear provided on a rotating axis on a side of the developing unit, a fourth bevel gear always engaging with the third bevel gear and a rotation coupling device coupling the second bevel gear and fourth bevel gear.