… device to secure an even flow to the openers. (7) Beaters and spreaders for further cleaning and opening out … fibres (flax, hemp, etc.), etc. These continue the cleaning begun by the openers and beaters, and separate and …
… term “safety glass” covers only the types of glass described below and does not refer to protective glass such as … (2) Glass whose strength, durability and flexibility have been substantially increased by a complex physical-chemical …
… of apparel, household linen, etc. These articles may be made of various materials and they may contain natural or … etc.). Spherical buttons may be distinguished from beads by the fact that the hole for the thread is not … pierced and polished, but are readily distinguishable as being intended for manufacture into buttons. (ii) Stamped …
… hydrogen which have no rings in their structure. They can be classified in two categories : (A) Saturated acyclic … atoms of carbon are liquid; hydrocarbons with a greater number of carbon atoms are generally solid. One or more of … vinylacetylene (acetylene in which one hydrogen atom has been replaced by a vinyl group), and methylvinylacetylene , …
… in a jet of oxygen or air. In general, these appliances can be used not only for the operations referred to in the … jaws, slide‑rests and jointed arms) either enable the part being worked to be fixed, guided or moved forward, or allow … temperature required, but this heat does not penetrate far below the surface. Once the surface has been brought to the …
… a way that one or more copies of an original document can be made by applying pressure (e.g., by the impact of a … copying papers . These consist of paper which has been coated or sometimes impregnated, with fatty or waxy … or a stylus on the original sheet produces a reaction between two different ingredients normally separated from …
… of the species alder ( Alnus spp. ), ash ( Fraxinus spp. ), beech ( Fagus spp. ), birch ( Betula spp. ), cherry ( Prunus spp. ), chestnut ( Castanea … is usually formed of an odd number of plies, the middle ply being called the “core”. (2) Veneered panels , which are …
… already fixed to sleepers or other supports. Such track may be in the form of junction, switch or cross‑over points, … track to minimise the shock if rolling‑stock does not stop before reaching the track terminal. They are designed either … arch‑shaped structures which ensure that trains passing beneath them do not exceed the maximum clearance height and …
