Factories. [Ch. 30. No. 2. 117 3. (1) In this Ordinance and in any regulations or orders General made thereunder, unless the context otherwise requires, interpre the following expressions have the meanings hereby assigned to them respectively, that is to say— ‘‘bakehouse’’ means any place in which bread, biscuits, or confectionery is or are baked by way of trade or for purposes of gain; ‘bodily injury ” includes injury to health; ‘building operation means the construction, structural alteration, repair or maintenance of a building (including re-pointing, re-decoration and external cleaning of the structure), the demolition of a building, and the preparation for, and laying the foundation of, an intended building, but does not include any operation which is a work of engineering construction within the meaning of this Ordinance; ‘‘calendar year’’ means the period of twelve months beginning with the Ist of January in any year; “child ’’ means a person who has not attained the age of fourteen years; “class or description,’ in relation to factories, includes a group of factories described by reference to locality ; “ driving-belt ’’ includes any driving strap or rope; *“ fire authority ’’ means the Commissioner of Police and includes any officer appointed by him to be in charge of measures for the putting out, control, or prevention of fires; “fume ”’ includes gas, vapour or smoke; “general register’’ means the register kept in accordance with the requirements of section 54 of this Ordinance; ce oD inspector means, except where otherwise expressed, an inspector appointed under this Ordinance, and a reference to the inspector for the district refers, as respects any factory, to the inspector in charge of the district in which the factory is situate; “local health authority ’’ has the same meaning as that assigned to it in the Public Health Ordinance; * Superintendent of Fire Brigades is a fire authority for purpose of section 26. — See R.G. 18.11.50.