Chemical fire engine, 1902, model (scale 1:6). These were introduced for use whilst other fire engines were being connected to a hydrant. This model represents the chemical engine used in Bristol from 1902 to 1914, made by Merryweather and Sons. The copper cylinder contained a solution of water and sodium bicarbonate. The top fitting contained a lead bottle of sulphuric acid, which was punctured by turning the handle at the rear. The acid reacted with the bicarbonate solution, generating carbon dioxide gas which expelled the liquid at high pressure.

Picture Reference: 10288437
Subject: TRANSPORT > Fire-fighting > Fire Engines, Chemical, 20Th Century
Inventory No.: 1946-0092
Credit: Science Museum

Keywords: 1870-1913, Age Of Electricity, Bristol, Brigade, Bristol Fire Brigade, Century, Chemical, Chemical Fire Engine, Emergency Services Vehicle, Engine, Europe, Fire, Fire-engines, Fire Engine, Fire Engines, Chemical, 20th C, Fire-engine, Fire-truck, Merryweather, Soda-acid, Transportation, Transport, Uk, United Kingdom, Vehicle