Pneumatic fittings are parts used to connect sections of pipe, tube, and hose in pneumatic (pressurized gas) systems. Compared to hydraulic fittings, pneumatic fittings are typically characterized by ...

There are two basic types of pneumatic tube conveyors: dilute-phase pneumatic conveyors and carrier-system pneumatic conveyors ... High-friction belts are designed to move rigid parts such as plastic ...

Special to The New York Times. TimesMachine is an exclusive benefit for home delivery and digital subscribers. Full text is unavailable for this digitized archive article. Subscribers may view the ...