17.—(1)
(a) in the case of a mine of shale, eighteen years;
(b)in the case of any other mine, twenty-one years.
(2) A manager shall not appoint any person to be an appointed driver unless that person is the holder of a certificate that he is competent without supervision to operate a locomotive of the type in question given by a person responsible for his training in such operation.
(3) The manager shall supply to every appointed driver a copy or summary of so much of the transport rules of the mine as affect the discharge of his duties.
18. No person for the time being operating a locomotive in a mine shall leave that locomotive unattended, otherwise than at the place where it is normally kept when not in use, unless he has ensured that it cannot be set in motion by any person prohibited by these regulations from operating it.
19. Except in accordance with the transport rules of the mine, no person shall be on any locomotive in motion in the mine unless he is—
(a)an appointed driver; or
(b)when the locomotive is being used in shunting operations, a person engaged in those operations; or
(c)a person engaged in maintaining, repairing or testing the locomotive.
20. Except during shunting operations no person shall couple next to any locomotive a vehicle containing any timber or other material of a length exceeding the length of the vehicle.
21.—(1) In any mine of coal or fireclay no person shall use a locomotive for moving any vehicle otherwise than by hauling from in front, except during shunting operations.
(2) In any mine of stratified ironstone or shale no person shall use a locomotive for moving any vehicle otherwise than by hauling from in front except—
(a)during shunting operations; or
(b)for moving a single vehicle at a place within twelve hundred feet of a working face; or
(c)in a length of road in which a locomotive was used for hauling material before the first day of May, nineteen hundred and forty-nine.
(3) Where in any mine of stratified ironstone or shale any vehicle is moved by a locomotive otherwise than by hauling from in front in pursuance of sub-paragraph (c) of the last preceding paragraph, a white light visible at a distance of two hundred feet shall be attached to the front of the vehicle or, if there is more than one, of the leading vehicle:
22. A red light visible at a distance of two hundred feet shall be attached—
(a)at the rear of the last vehicle of every train in a mine; and
(b)at the rear of every locomotive in a mine when it is not attached to a vehicle:
23.—(1) It shall be the duty of the manager of every mine in which a locomotive runs to make and secure the efficient carrying out of arrangements whereby every locomotive thereat is examined externally during every period of twenty-four hours during which the engine or motor has been run, by a competent person appointed by the manager for that purpose, and upon the completion of such an examination the person making it shall forthwith record and sign a full and accurate report thereof in a book provided by the owner of the mine for the purpose.
(2) In relation to any locomotive in which the motive power is generated by an internal combustion engine, it shall be the duty of the manager to make and secure the efficient carrying out of arrangements whereby any protective device fitted to any exhaust opening of the engine is thoroughly cleaned, or a clean device is substituted, whenever necessary and in any event during every period of twenty-four hours during which the engine has been run or such longer period as the Minister may be notice served on the manager approve in relation to any such locomotive.
24.—(1) Without prejudice to the generality of regulations six and seven of the Coal and Other Mines (Mechanics and Electricians) Regulations, 1956(1), it shall be the duty of the manager of every mine in which a locomotive runs to ensure that a scheme for the systematic examination of plant at that mine made in pursuance of the said regulation seven provides for the thorough examination and testing at intervals not exceeding seven days of every locomotive thereat. In the course of such examination and testing steps shall be taken to ensure that all parts of the locomotive requiring to be cleaned are properly clean and the brakes shall be applied—
(a)when the locomotive is in motion, by direct mechanical action and by any other means provided; and
(b)when the locomotive is stationary and the engine or motor is not running, by any means provided other than direct mechanical action and for a period of ten minutes.
(2) Such scheme shall provide also for the like examination and testing of the brakes forthwith after any repair or adjustment to the braking system of any locomotive.
(p. 1223 above).