… master clock and the secondary clocks which it drives by remote control. The master clock has usually a … movement and a contact device for transmitting the driving impulses to the secondary clocks. The secondary clocks , indicating the hours and minutes, receive their driving impulses at the end of each minute or …
… a white solid material with a characteristic odour. It is relatively hard and rather brittle and is usually marketed … molecular weight. (7) Acid oils from refining , with a relatively high free fatty acid content, prepared by …
… for human consumption . The cochineal is an insect which lives on certain cactus plants. There are three kinds of … of dwarf oak tree. Kermes is used for the preparation of vivid and lasting red dyes which are classified in heading …
… octants, azimuths, etc. (B) Other special marine or river navigational instruments , for example : (1) Automatic … gyroscopic compass. (2) Course recording apparatus . These give an accurate record of the course (and any changes of … of a ship by measuring the apparent distance covered in a given time. Nowadays, these instruments are always …
… of the systems based on this principle, the generator has a drive shaft connected by a flexible coupling to a synchronous motor which drives it at constant speed. Different sized gear wheels are placed in pairs along the shaft, each wheel driving toothed wheels known as “tone” wheels. When the …
… the plasma from blood. (12) Centrifuges for drying radioactive precipitates. (13) Centrifuges for extracting honey. … mainly of ceramics or glass ( Chapter 69 or 70 , respectively). (2) Filter candles for man‑made textile manufacture . These consist of a non‑corrosive container housing a textile element which filters the …
… polymers, generally in granular form, containing active ionic groups (usually sulphonic, carboxylic, phenolic … their own types of ions for one of those (of the same sign, positive or negative) contained in the solution. These are used in …
… in Note 5 to this Chapter, which consist of or contain relatively high molecular weight organic substances and … excluded . Water-soluble waxy products having surface-active properties are also excluded ( heading 34.02 ). (B) …
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