Showing posts with label Pumps. Show all posts
Showing posts with label Pumps. Show all posts

Saturday, February 11, 2012

Sailor Mouth Saturday: Box

Technically a box aboard ship is not a storage vessel. That would more properly be termed a locker or sea chest, both of which would hold not goods but the private articles of an individual sailor. Aboard a sailing ship the box is a designated area on one of her small boats. This is the coxswain’s domain; the space between the backboard and the stern post, where he sits to man the tiller and shout orders to the oarsman.


Compasses may be boxed by the young gentlemen learning their way around same. Midshipmen would be expected to say by memory the names of the 32 points, both in order and backward, and answer specific questions about the divisions between the points asked by their captain or another superior officer. No small task, as anyone who has used a compass can tell.

A boxing is a piece of hardwood, almost exclusively in the shape of a square, used in shipbuilding and repair to connect the framing timbers. Boxing off, on the other hand, is an emergency procedure to correct the direction of a sailing ship when she has got herself “in irons”. This is the ill-fated situation by which a ship has come up in the wind and is in danger of losing her momentum. In such cases, the helm will not answer alone to change her course. Then the head sheets must be hauled to windward while the head yards are laid back to try and release her head from the wind.

Another rarely desirable maneuver along the same vain is boxhauling. In this case the ship is turned very sharply on her heel when it is necessary to avoid making the usual large and time-consuming arc to change her course to the opposite direction. Again the head yards are braced flat but here the helm is put to leeward. When the ship gathers sternway, the helm is shifted and the sails trimmed. This is a maneuver to be avoided if at all possible due to its extreme danger in anything but the most favorable conditions. Capsizing is not unheard of when boxhauling in weather.

The pumps of a ship, those blessed instruments that – though torturous to work – keep her bilge and lower deck free of water and filth, have boxes as well. A common pump will have an upper and lower box, one attached to the lower chamber and the other to the piston rod. In the center of each box is an upward-facing valve. Pumps are and were rather complex mechanisms, for all they were run simply by the power of men for most of their existence. They should really have a post in their own right; allow me to see to that.

And so we will bring another SMS to a close, Brethren; fair winds, sweet bilges and clear skies to you all.

Header: Relets sur la Mer by Arsene Chabanian via Old Paint

Saturday, August 21, 2010

Sailor Mouth Saturday: Bilge

The bilge, sometimes spoken as "bulge", of a ship is its lowest deck. The lowest useful deck on ships of brigantine size or larger is the orlop. This is generally used for storage and cargo. In naval sailing ships, frigate size and up, the fore of the orlop deck is also used for the sick berth because of the potential for good ventilation in that below deck area. The bilge sits below the orlop and, though it has a horizontal floor, is not put to use.

The main reason for this is that the bilge is where water (and other less appealing detritus) from the usual running of a wooden ship collects. The bilge has an important job keeping the keel together and if it is fractured, repairs need to be effected immediately to avoid foundering. A ship with an injured bilge is said to be bilged.

The bilge of a cask or barrel is the area where it is the largest around, usually in the area where the bung hole is drilled. (Yes, I did mention that solely to be able to use the term "bung hole". Sue me.) Casks are said to be "bilge free" when they are stowed on their foot or head rather than lying sideways.

Flatter bottomed boats can be fitted with bilge-keels, sometimes called bilge-pieces, to help them run better in the wind. Bilge-keelsons can be fitted on the interior of any ship to help support the orlop deck when heavy cargo is being shipped.

Bilge water, of course, is that noisesom mix of effluvia that collects in the bilge. Usually this is water that has run down the walls of the ship from the main deck, not leaked in from below, and sits stagnant because the flat floor of the bilge prevents it from running out to the well of the ship's pumps. Other things can seep into the mix, from tar to human or animal waste to food stuffs depending on the nature and duties of the ship in question. As The Sailor's Word Book tells us "The mixture of tar-water and the drainings of sugar cargo is about the worst perfume known." Even worse, though, was the bilge in a slaver. Of course truly horrific buildup in the bilge will cause bilge-fever, killing living cargo and sailors alike.

Most ships have a bilge pump separate from the main pumps. In the popular mind "the pumps" and "bilge pump" mean the same thing but that is erroneous. The bilge pump is sometimes referred to as a bilge monkey. This reflects the fact that younger reefers, known as "monkeys" because of their simian-like skills among the tops, were frequently given the task of pumping the bilge. It is now the moniker for a fine pirate website/radio as well. Find Bilgemunky here on Twitter.

Finally, the word bilge comes in handy when cursing. How many men have been dubbed scurvy sons of bilge rats can only be guessed at now. Hardly a single pirate movie or novel misses that chance, it seems.

Happy Saturday, Brethren. I hope it is as sunny and breezy where you are as it is here by Turnagain Arm
Header: downloadable wallpaper via Wallpapers Online.