Engineer Port Repair ShipUnited States. War Department
History
Engineer Port Repair Ship
United States. War Department
Repair ships -- Handbooks, manuals, etc.
(1) The beach gear carried on the ship is used primarily to salvage
stranded vessels. This type of salvage differs from raising sunken
wrecks, where all the work in preparing the vessel for raising is
done by divers. For beach salvage work, divers ordinarily are needed
only for examining the stranded vessel’s hull and the nature of the
underwater terrain, and beach gear and the towing power of other craft
are used to refloat the ship.
(2) The main items of the beach gear are two 8,000-pound anchors,
blocks of various types, hooks, clips, chains, manila and wire rope,
shackles, cable stoppers, and rope thimbles.
[Illustration: _Figure 31. Column-type drill. This drill has a 1-inch
capacity in steel._]
=j. Portable salvage pumping equipment.= The portable salvage pumping
equipment consists of one 10-inch, two 6-inch, and two 3-inch salvage
pumps, complete with spare parts, hose, metal suctions, and adapters.
[Illustration: _Figure 32. Combination tool and cutter grinder._]
[Illustration: _Figure 33. Pedestal grinder for tool sharpening._]
=k. Portable fire-pumping equipment.= The portable fire-pumping
equipment consists of a two-wheeled trailer pumper with a capacity of
500 gpm and four 50-foot lengths of 2-1/2-inch hose.
=l. Hoisting equipment.=
(1) The hoisting equipment consists of the 40-ton cathead mounted on
the prow, one 50-ton and four 10-ton booms on the foremast, and two
5-ton booms on the mainmast, together with the winches for operating
them. (See fig. 45.)
(2) The cathead (fig. 46) is used to raise debris and sunken small
craft that are hazards to navigation or prevent vessels from coming
alongside wharves or piers. It is operated by a two-speed winch
installed in the forecastle peak on the shelter deck.
(3) The 50-ton boom is operated by a two-speed winch and the four
10-ton and the two 5-ton booms are run by single-speed winches. (See
fig. 47.)
[Illustration: _Figure 34. Power hacksaw for metal cutting._]
[Illustration: _Figure 35. View of blacksmith shop showing 48-inch
forge and 200-pound anvil._]
=m. Floating equipment.= In addition to the life-boats and rafts,
the ship carries a steel pontoon barge, a plane-rearming boat, and a
utility boat.
(1) The barge is made up of 21 sections (fig. 48) and has a capacity
of 50 tons. It is propelled by a 115-hp outboard engine and carries a
5-ton crawler crane for diving and salvage operations. The sections of
the barge are stowed in the number 1 hold of the ship.
(2) The plane-rearming boat is 33 feet long and is powered by a 100-hp
inboard, Diesel engine. It is used for diving, general utility work,
and light towing.
[Illustration: _Figure 36. Pneumatic, 200-pound forging hammer._]
[Illustration: _Figure 37. Universal woodworking machine with steel
table and two extension roller tables._]
(3) The utility boat is 26 feet long and is propelled by a 95-hp
gasoline or Diesel engine. It is used to tow the barge and floats and
for general errand work.
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