to line pipes up
121British Rail Class 121 — Class 121 in Network South East livery at Paddington station – note the exhaust pipes and plated over headcode box (1988) In service 1960–present Manufacturer …
122Coupling (railway) — Knuckle (AAR Type E ) couplers in use ICE coupler A c …
123Polyurea — is a type elastomer that is derived from the reaction product of an isocyanate component and a synthetic resin blend component. The isocyanate can be aromatic or aliphatic in nature. It can be monomer, polymer, or any variant reaction of… …
124Wastegate — A wastegate is a valve that diverts exhaust gases away from the turbine wheel in a turbocharged engine system. Diversion of exhaust gases causes the turbine to lose speed, which in turn reduces the rotating speed of the compressor. The primary… …
125Isambard Kingdom Brunel — Infobox Engineer image size = caption = Brunel before the launching of the Great Eastern name = Isambard Kingdom Brunel nationality = birth date =birth date|1806|4|9|df=y birth place = Portsmouth, United Kingdom death date =Death date and… …
126List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
127George Hennet — (1799 1857) was a railway engineer and contractor. He undertook many contracts for Isambard Kingdom Brunel s broad gauge railways in the South West of England and funded the provision of extra facilities on the South Devon Railway, these formed… …
128Pitching Sacred Harp music — In Sacred Harp music, it is the custom to sing a song not necessarily in the pitch in which it is notated in the hymnbook itself, but rather in a key chosen for the moment. Pitching (also: keying) is the term used to describe the task of finding… …
