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Small impulse sealer Heat-sealed material lies on a warehouse floor. Notice the corded heat sealer to the left. Heat sealer used to prepare plastic bag of lettuce for shelf life testing Continuous band heat sealer. A heat sealer is a machine used to seal products, packaging, and other thermoplastic materials using heat. This can be with uniform ...
Uranium glass used as lead-in seals in a vacuum capacitor. Glass-to-metal seals are a type of mechanical seal which joins glass and metal surfaces. They are very important elements in the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass-encapsulated semiconductor diodes, reed switches, glass windows in metal cases, and metal or ceramic packages of ...
These built-up guns consisted of a rifled tube encased within an inner and outer jacket with a horizontal sliding breech block. The breech was sealed with an 18 kg (40 lb) brass case containing 30 kg (66 lb) of smokeless powder with a 160 gram (5.6 oz) gunpowder igniter. A cloth bag containing an additional 21 kg (40 lb) of smokeless powder and ...
The M60, a general purpose machine gun. General purpose machine gun: A machine gun intended to fill the role of either a light machine gun or medium machine gun, while at the same time being man-portable. Grain is a unit of measurement of mass that is based upon the mass of a single seed of a typical cereal. Used in firearms to denote the ...
A tube, squeeze tube, or collapsible tube is a collapsible package which can be used for viscous liquids such as toothpaste, artist's paint, adhesive, caulk, & ointments. Basically, a tube is a cylindrical , hollow piece with a round or oval profile, made of plastic , paperboard , aluminum , or other metal.
A special purpose heavy-duty rubber hose attaches the stuffing box to a stern tube, also called a shaft log, that projects inward from the hull. Marine-duty hose clamps secure the hose to the stern tube and the aft portion of the stuffing box sleeve. A sound stuffing box installation is critical to safety because failure can admit a ...
Induction sealing is the process of bonding thermoplastic materials by induction heating. This involves controlled heating an electrically conducting object (usually aluminum foil) by electromagnetic induction, through heat generated in the object by eddy currents. Induction sealing is used in many types of manufacturing.
Japanese ashigaru firing hinawajū.Night-shooting practice, using ropes to maintain proper firing elevation. Tanegashima (), most often called in Japanese and sometimes in English hinawajū (火縄銃, "matchlock gun"), was a type of matchlock-configured [1] arquebus [2] firearm introduced to Japan through the Portuguese Empire in 1543. [3]