-
Pneumatic tubes (or
capsule pipelines, also
known as
pneumatic tube transport or PTT) are
systems that
propel cylindrical containers through networks...
-
Alfred Ely
Beach demonstrated a
model of
basic pneumatic subway system, in
which air
pressure in the
tube pushed the cars, at the
American Institute Exhibition...
- The
pneumatic tube mail was a
postal system operating in New York City from 1897 to 1953
using pneumatic tubes.
Similar systems had
arisen in the mid-19th...
- The
Paris pneumatic post was a
pneumatic tube message-carrying
service that
operated in the
French capital from 1866. It was
established because of the...
-
above companies also made
pneumatic tube systems - see
Lamson tube. They are
still installed in a few shops.
Modern pneumatic tube systems are also now used...
- too deep. The four main
types of
caisson are box caisson, open caisson,
pneumatic caisson and
monolithic caisson. A box
caisson is a
prefabricated box (with...
-
carrier systems for
shops including cash ball, wire and
pneumatic tube systems and of
pneumatic tube systems for
other applications. The
Lamson Cash Carrier...
-
Pneumatics (from Gr**** πνεῦμα
pneuma 'wind, breath') is the use of gas or
pressurized air in
mechanical systems.
Pneumatic systems used in
industry are...
- A
pneumatic weapon is a
weapon that
fires a
projectile by
means of air pressure,
similar in
principle to the
operation of
pneumatic tube delivery systems...
- standards, and
avoiding changes to the
ecology along its routes." The
pneumatic tube,
using high
pressures behind a
capsule to move it forward, was suggested...
