17In this Schedule, unless the context otherwise requires, the following expressions have the meanings hereby respectively assigned to them, that is to say :
" Carriage-charges " means such of the charges for the time being in force for the carriage of merchandise by railway or light railway as may be determined by the scheme in relation to any rebate thereby provided for :
" Coke oven " means works consisting of coke ovens wholly or mainly engaged in the production of coke for metallurgical purposes:
" Delivered for conveyance by railway " means delivered to any of the companies for conveyance, whether by that company or by some other of the companies, by railway:
" Estimated rate relief " means in relation to any company in any year the sum taken as being the rate relief of the company in the estimate adopted by the tribunal for the purpose of calculating the rebates to be allowed by the companies under the scheme in that year:
" Exported " in relation to coal, coke or patent fuel, means shipped to places outside the British Islands, or as bunkers for ships proceeding to places outside those islands, or as bunkers for fishing vessels, and " exported coal, coke, or patent fuel" includes coal, coke, and patent fuel shipped coastwise before being exported:
" General moneys of the fund " means, as respects any year, the revenue of the fund for that year, including any balance brought forward therein, but excluding any sums set aside in that year in accordance with the provisions of the scheme as a contingency reserve :
" Iron or steel works " means works which consist wholly or mainly of blast furnaces, puddling furnaces, steel furnaces, or rolling mills, or of hammers or presses which produce all or any of the following articles, that is to say, forgings weighing not less than ten hundredweight, blooms, billets, and bars:
" Net revenue of the fund " means, as respects any year, the revenue of the fund for that year (including any balance brought forward therein, but excluding any sums set aside in that year in accordance with the provisions of the scheme as a contingency reserve and any sums which may be paid to the fund by the companies to meet a deficiency in accordance with the requirements of sub-paragraph (g) of paragraph 13 of this Part of this Schedule), after deducting the sums directed by sub-paragraphs (1)(a) and (b) of paragraph 5 of this Part of this Schedule to be paid out of the fund:
" Railway company, " " light railway company, " " light railway, " " freight transport hereditaments lands and heritages " and " railway transport purposes " have the same meanings respectively as in the Rating and Valuation (Apportionment) Act, 1928:
" Rate-relief, " in relation to any of the companies, means the amount of the difference between the aggregate of the sums paid and payable by the company by way of rates in respect of freight transport hereditaments lands and heritages, occupied and used wholly or partly for railway transport purposes as part of the railway or light railway undertaking of the company, whereof the rateable value is ascertained under the provisions of Part V. of this Act or of any corresponding enactment extending to Scotland, and the aggregate of the sums which would have been so paid and payable in respect of those hereditaments lands and heritages, if those provisions had not been passed; and in relation to all the companies, means the aggregate amount of the differences aforesaid:
" Representative body of traders interested " means any association or body of persons which satisfies the tribunal that it represents a substantial number of persons interested in the selected traffics :
" Selected traffics " means the traffics' mentioned in Farts II, III, and IV of this Schedule, but, save as respects milk, does not include any traffics conveyed at passenger train rates; and the selected traffics mentioned in each of the said Parts are collectively referred to in this Schedule as a group of selected traffics :
" Shipped coastwise, " in relation to exported coal, coke, or patent fuel means shipped from a place within the British Islands to another place within those islands :
" Tribunal " means the Railway Rates Tribunal:
" Washery " means works for washing or cleaning coal:
" Year " means a period beginning on the first day of October and ending on the next subsequent thirtieth day of September, and the expression " annually " shall be construed accordingly.