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  2. Stuffing box - Wikipedia

    en.wikipedia.org/wiki/Stuffing_box

    A small boat stuffing box comprising an adjusting nut, a locking nut and a sleeve. On a boat having an inboard motor that turns a shaft attached to an external propeller, the shaft passes through a stuffing box, also called a "packing box" or "stern gland" in this application. The stuffing box prevents water from entering the boat's hull.

  3. List of patrol vessels of the United States Navy - Wikipedia

    en.wikipedia.org/wiki/List_of_patrol_vessels_of...

    Sold 3 March 1947 PE-39: 3 February 1919: 29 March 1919: 20 September 1919: Sold 7 June 1938 PE-40: 7 February 1919: 5 April 1919: 1 October 1919: Destroyed as target 19 November 1934 PE-41: 20 February 1919: 5 April 1919: 26 September 1919: Sold 11 June 1930 PE-42: 13 February 1919: 17 May 1919: 3 October 1919: Sold 11 June 1930 PE-43: 17 ...

  4. Consolidated Safety-Valve Co. v. Crosby Steam Gauge & Valve ...

    en.wikipedia.org/wiki/Consolidated_Safety-Valve...

    The direction given in the patent that the flange or lip is to be separated from the valve seat by about one sixty-fourth of an inch for an ordinary spring, with less space for a strong spring and more space for a weak spring, to regulate the escape of steam as required, is a sufficient description as matter of law, and it is not shown to be insufficient as a matter of fact.

  5. List of equipment of the United States Coast Guard - Wikipedia

    en.wikipedia.org/wiki/List_of_equipment_of_the...

    These aluminum boats are 45 feet (14 m) in length, with twin diesel engines (total 825 hp), are self-righting, have a four crew, six passenger capacity, are equippable with two .50 caliber machine guns, have an excellent fendering system, can achieve a top speed of 42 knots (78 km/h), and are capable of towing a 100-ton vessel in eight-foot seas.

  6. Butterworth cover - Wikipedia

    en.wikipedia.org/wiki/Butterworth_Cover

    When the service opening is not in use, it is sealed by a removable cover plate, commonly referred to as a Butterworth cover. [4] 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 ...

  7. Sea chest (nautical) - Wikipedia

    en.wikipedia.org/wiki/Sea_chest_(nautical)

    The sea chest provides an intake reservoir from which piping systems draw raw water. Most sea chests are protected by removable gratings, and contain baffle plates to dampen the effects of vessel speed or sea state.

  8. Check valve - Wikipedia

    en.wikipedia.org/wiki/Check_valve

    A check valve, non-return valve, reflux valve, retention valve, foot valve, or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction. [ 1 ] Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave.

  9. Manhole cover - Wikipedia

    en.wikipedia.org/wiki/Manhole_cover

    The base and cover are sometimes called "castings", because they are usually made by a casting process, typically sand-casting techniques. [1] Pick holes in manhole cover, Palo Alto, California, USA Manhole valve made in 2022. The covers usually feature "pick holes", into which a hook handle tool is inserted to lift them.

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