Abstract: A liquid transfer apparatus for use in an automatic analyzer successively transfers a number of liquid vessels in a continuous manner to a liquid pick up station where a probe of a liquid distributor is used to perform a liquid analysis and inserts by interruption a specified liquid vessel holding specified liquid such as an emergent test sample into the liquid pick up station when necessary to perform an analysis in an emergency by interruption during a normal operation.

Abstract: A photometric liquid analysis apparatus of the centrifugal analysis type uses insert elements having an elongated body, an optical measurement chamber near one end of the elongated body and a positioning trough on one side of the elongated body. The photometric liquid analysis apparatus has a rotor for rotating the insert elements to photometric means for photometric analysis of a liquid then in the optical measurement chamber of the insert element during the rotation of the rotor. The rotor has radial guiding chambers, each having an opening at an end thereof adjacent the outer periphery of the rotor and a configuration for receiving one of the insert elements with its positioning trough on a lateral side thereof and adjacent the outer periphery of the rotor.

Abstract: An automatic chemical analyzing apparatus including a cuvette assembly having a plurality of rows of reaction tubes arranged in respective sample magazines, each sample magazine being conveyed sequentially in a direction perpendicular to the transverse row of reaction tubes, and then in a direction parallel thereto so as to complete a reaction channel, during which the samples to be analyzed in the magazine are treated and analyzed a predetermined number of times by passing through a photometer. Adjacent the reaction channel is provided a preparation channel for cleaning and drying of reaction tubes and/or for adding of samples and reagants to the cleaned and dried tubes. Sample magazines are selectively transferrable from the reaction chamber to the preparation chamber upon completion of testing of the samples.

Abstract: A procedure for loading into an instrument cuvettes intended for chemical analysis and/or handling of liquids, said cuvettes being loaded into the instrument directly from the shipping package, and a cuvette package. The cuvette package includes a box portion for supporting the cuvettes having an open feeding end, and a cover portion detachable from the box portion and provided with a depending pushing member. When the cover portion is disposed contiguously atop the box portion to form the package, the pushing member closes the feeding end to securely contain any cuvettes therein. When the cover portion is detached from the box portion, dust-free and scratch-free transfer of cuvettes into the instrument while the package is attached to an input aperture of the instrument may be accomplished by pushing, from behind, the rows of cuvettes in the package with the pushing member of the cover portion.

Abstract: An automatic chemical analyzer for measuring quantitatively a plurality of kinds of substances of a number of sample liquids comprises: a reagent delivery unit including a plurality of reagent bottles containing different kinds of reagents which are required for measuring the plurality of kinds of substances and a syringe type dispenser for delivering given amounts of reagents into a plurality of empty reaction vessels set in a cassette, a reaction vessel supply unit for holding a plurality of cassettes and for supplying successively the reaction vessels in which given reagents have been previously delivered in accordance with given test items to be performed, an analyzing unit for receiving the successive reaction vessels from the reaction vessel supply unit and including a syringe type sample delivery pump for supplying given amounts of sample liquids into the reaction vessels and a colorimetric device for measuring colorimetrically test liquids in the reaction vessels, a first control unit for controlling

Abstract: Apparatus for monitoring chemical reactions occurring on a slide, cartridge or other reflective carrier in which the nature of the reaction is determined quantitatively by means of a change in color. The reaction products are illuminated by radiant energy of a known wavelength and the reaction is detected and/or monitored by the reflection of the radiant energy from the sample where the reaction is occurring. A plurality of samples carried on such slides is disposed in alignment in a circle or a line and a rotor or carriage carrying plural photometers or a single photometer producing plural beams at different wavelengths is moved relative to the samples, the beams being directed at the samples.