Submarine Appliances And Their Uses
Deep Sea Diving, &c., &c.

______________ ___________________________ __________________ ______ Cleaning Ship's Bottom (using a stage). On Air Pipe :— i pull means ... ... ... ... “ Foremost starboard rope.” 3 pulls mean_____________________ “After ditto.” 2 pulls mean ... ... ... ... “ Foremost port rope.” 4 pulls mean_____________________ “After ditto.” Signals from Attendants to Diver. Direction. Signals. On Air Pipe :— i pull means ... ... ... ... “ Search (or remain) where you are.” 2 pulls mean_____________________ “Go straight ahead.” 3 pulls mean_____________________ “ Go to the right.” 4 pulls mean ... ... ... ... “ Go to the left. ” On Breast-rope : — i pull means ... ... ... ... “ Are you all right?” 2 pulls mean ... ... ... ... “ Am sending a slate.” 3 pulls mean_____________________ “ You have come up too far. Go down slowly till we stop you.” 4 pulls mean ... ... ... ... “Come up.” Followed by the ordinary (“ pull up ” or " lower ’’) signal. Other signals will of course be arranged between diver and attendant to suit the exigencies of the particular work in hand. But where the telephone is used this method of signalling can be dispensed with. Foul Signals.—Foul signals can be made on either Air Pipe or Breast Rope. Two bells repeated several times quickly mean that the diver is foul, and requires the assistance of another diver ; on receiving such a signal no attempt should be made to haul the diver up, but the second diver sent down as quickly as possible. Three bells repeated several times in quick succession mean that the diver is foul, but can clear himself if left alone. Note5 on Signals. All signals made and received, and all sudden movements of the diver, or any- thing that seems to show that he is in difficulties, are to be reported immediately to the officer or superintendent in charge on the spot. The person receiving a signal re- peats it to show that he has understood it ; never answer a signal in this way tinless you clearly understand what is meant; if you get a wrong answer to your signal or none at all, go on making the signal until it is correctly answered. The attendant should, from time to time, ask the diver if he is all right, and if no reply can be obtained the diver must be hauled up under the direction of the officer or superintendent in charge. 41