PURPOSE:To simplify the mounting of a rotor holding apparatus by holding a shaft by providing a shaft stand to the retainer fixed to the bottom part of a rotor chamber and holding the piece assembly of a rotor to the support arm fixed to the upper part of the shaft in a cantilevered fashion. CONSTITUTION:A shaft 11 is erected on the retainer 10 possessed by a centrifuge main body and a support arm...

PURPOSE:To prevent engine stall and an aftershock by outputting a limit signal for lowering the output of the power of an engine and also stopping the output of the limit signal according to the state of the operation of the engine when an automatic transmission is under a speed changing state. CONSTITUTION:An operating state detecting means (a) for for detecting the state of the operation of an e...

This invention relates to a optical fiber type colorimeter, and in particularly it refers to a colorimeter which uses optical fibers to transmit light to sample or reference matter. Scattered light reflected from matter surface is received by a optical fiber and then transmitted to a grating which splits light into spectrum. An A/D converter is connected to the driver circuit to communicated signa...

A dental panoramic/cephalo X-ray photographing device being characterized in that an X-ray generator can be horizontally rotated by an electric drive means so that the X-ray irradiation axis of the X-ray generator is directed to a panoramic photographing cassette or a cephalo photographing cassette. With this device, selection between the panoramic and cephalo photographing modes can be done far q...

A process for recovering sulphuric acid from waste waters makes use of the operating principle of the lead storage battery, in accordance with which the sulphuric acid electrolyte participates directly in the cell reaction. In order to bind the sulphuric acid selectively as lead sulphate by a discharge process, it is even sufficient to supply the waste water containing sulphuric acid to an electro...

The invention relates to an apparatus for the deposition and conveyance of yarn bobbins which are fed from a vertically adjustable exit of a bobbin-collecting conveyance apparatus to a textile machine, consisting of a basic frame which is designed as a mobile handling trolley and above which a depositing track for the yarn bobbins is arranged. The object of the invention is to ensure by simple mea...

A semipermeable hollow fiber membrane (10) consists of a first layer (12) for selectively permeating only water and water soluble substances therethrough and excluding the permeation of hydrocarbon fluids and a second layer (14) covalently bonded to the first layer (12), the second layer (14) being selective permeable only to water soluble substances and excluding water permeation therethrough. Th...