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Butterworth hatches are not the main access hatches, but are the servicing hatches, and are generally closed with a metal cover plate with a gasket that is fastened to the deck by a number of bolts which stick up from the deck. Holes on the edges of the plate fit over these bolts and the cover is fastened down with nuts or dogs.
Directional boring machine. Directional boring, also referred to as horizontal directional drilling (HDD), is a minimal impact trenchless method of installing underground utilities such as pipe, conduit, or cables in a relatively shallow arc or radius along a prescribed underground path using a surface-launched drilling rig.
During STS-124, a Space Shuttle mission flown by Space Shuttle Discovery, the Pressurized Module of KibÅ was added to the port side of Harmony and the ELM-PS was moved, leaving the zenith hatch empty. The zenith hatch was originally intended to be the permanent docking connector for the now canceled Centrifuge Accommodations Module (CAM).
The open hatch bulk carrier, often referred to as OHBC or conbulker, is designed to offer direct access to the hold through cargo hatches which extend the full width of the vessel. As a result, large cargo units can be lowered into place. If it is possible, the holds or hatches are designed around standard cargo unit sizes.
“He was putting in application after application,” Di-Key says—for everything from building supply to TV cable installation to mall retail. But callbacks were hard to come by. Jeff helped his father run a kettle corn concession stand, while Di-Key baked and sold cakes for birthdays and weddings, finding customers through word-of-mouth and ...
A utility tunnel, utility corridor, or utilidor is a passage built underground or above ground to carry utility lines such as electricity, steam, water supply pipes, and sewer pipes. Communications utilities like fiber optics , cable television , and telephone cables are also sometimes carried.
An open utility vault. "ELEC" on cover indicates electrical equipment/wires. A utility vault is an underground room providing access to subterranean public utility equipment, such as valves for water or natural gas pipes, or switchgear for electrical or telecommunications equipment.
The Maritime Prepositioning Force (MPF) Utility Boat (MPFUB) is a commercially designed utility craft used primarily to move personnel and light equipment during MPF offload operations. [1] The 41 foot long, high-speed landing craft are replacing the Navy’s existing LCM-8 craft as part of the United States Navy 's Improved Navy Lighterage ...