§ 413. Hoists. Every engine, brake, cage, bucket, rope, and chain shall be kept in good order and shall be inspected daily. Every lift, hoist, rope and other mechanical device shall be capable of sustaining the weight intended to be borne by it, in accordance with factors of safety generally accepted by competent engineers. Every car and lift shall have a safety brake. No hoisting rope shall be subjected to a load heavier than one-fifth of the weight it can sustain without breaking.