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* Pneumatic post stamps — for mail sent using pressurized air tubes, only produced in Italy.
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Pneumatic and post
Pneumatic post or pneumatic mail is a system to deliver letters through pressurized air tubes.
Pneumatic post systems were used in several large cities starting in the second half of the 19th century ( including an 1866 London system powerful and large enough to transport humans during trial runs – though not intended for the purpose ), but were largely abandoned during the 20th century.
Pneumatic post stations usually connected post offices, stock exchanges, banks and ministries.
** Pneumatic post, using capsules to move paper and small goods through tubes.
Pneumatic and —
* Pneumatic — the rig is primarily powered by pressurized air
** " Pneumatic Pieces " — Free-standing works, with hydraulically-or pneumatically-driven lifting devices for inside ; " contraptions " made of items from industrial and domestic parts.
** " Pneumatic Installations " — Installed works, with hydraulically-or pneumatically-driven lifting devices for both inside and outside ; " contraptions " made of items from industrial and domestic parts.
* — Pneumatic Panning or Distributing Machine, granted July 16, 1901
Pneumatic and for
By 1794 Watt had been chosen by Thomas Beddoes to manufacture apparatus to produce, clean and store gases for use in the new Pneumatic Institution at Hotwells in Bristol.
Watt continued to experiment with various gases for several years, but by 1797 the medical uses for the " factitious airs " had come to a dead end. Scientific apparatus designed by Boulton and Watt in preparation of the Pneumatic Institution in Bristol
Pneumatic tube networks gained great prominence in the late 19th and early 20th century for businesses or administrations that needed to transport small but urgent packages ( such as mail or money ) over relatively short distances ( within a building, or, at most, within a city ).
In 1861, the London Pneumatic Despatch Company built a system large enough to move a person, although it was intended for parcels.
Pneumatic logic is a reliable and functional control method for industrial processes.
Pneumatic or elastic tires help by providing some springing for most of the ( otherwise ) unsprung mass, but the damping that can be included in the tires is limited by considerations of fuel economy and overheating.
* Pneumatic stabilized platform, a technology for very large floating structures
Pneumatic thermostats typically provide output / branch / post-restrictor ( for single-pipe operation ) pressures of 3-15psi which is piped to the end device ( valve / damper actuator / Pneumatic-Electric switch, etc.
In 1861 tests were performed at the Soho Foundry for the London Pneumatic Despatch Company.
Involved in the proposal was Thomas Webster Rammell, who was also responsible for the Crystal Palace Pneumatic Railway and the London Pneumatic Despatch Company.
Pneumatic actuators were not powerful enough to move heavier objects like simulated limbs, so hydraulics were used for large figures.
* March-The Pneumatic Institution for research into the medical implications of newly-discovered gases is established by Thomas Beddoes in Bristol.
Pneumatic ones are used in production lines for high production.
Pneumatic drill usage can also lead to a predisposition for development of carpal tunnel syndrome.
Occupied from Elizabethan times to the present day, the main buildings were built for the military protection of Milford Haven in the 1850s, but the most unusual feature is its use for trials of Edmund Zalinski's Pneumatic Dynamite Gun in the 1890s.
The Mersey Pneumatic Railway received Royal Assent for a single line pneumatic railway in 1866 but failed to raise the necessary capital.
Pneumatic grinders are generally used for lighter duty jobs where more precision is required.
* Dunlop Pneumatic Tyre Co Ltd v Selfridge & Co Ltd AC 847, 855, Lord Dunedin, " An act or forbearance of one party, or the promise thereof, is the price for which the promise of the other is bought and the promise thus given for value is enforceable.
To improve the efficiency of building operations staff, Johnson Controls introduced the Pneumatic Control Center, which allowed for monitoring and operating all the temperature control devices in a facility from a single point.
Pneumatic and mail
* Pneumatic mail article from the U. S. National Postal Museum
* Pneumatic tube mail distribution networks
* Pneumatic mail systems
– Pneumatic mail
* 1863: First trial of the London Pneumatic Despatch Company to send mail by underground rail between postal depots.
Pneumatic and using
* Pneumatic cylinder, using compressed gas
Pneumatic paper folders pull paper into the machine using a vacuum.
Pneumatic and air
Pneumatic motors generally convert the compressed air to mechanical work though either linear or rotary motion.
* Pneumatic filter, a device which removes contaminants from a compressed air stream
Pneumatic tubes ( or capsule pipelines ; also known as Pneumatic Tube Transport or PTT ) are systems in which cylindrical containers are propelled through a network of tubes by compressed air or by partial vacuum.
Pneumatic actuators and hydraulic actuators need pressurised air or liquid lines to supply the actuator: an inlet line and an outlet line.
Pneumatic systems use gasses under pressure to transmit power ; compressed air is commonly used to operate pneumatic tools in factories and repair garages.
Pneumatic or pneumatic wet / dry vacuum cleaners are a specialized form of wet / dry models that hook up to compressed air.
* Pneumatic motor, a machine that converts the energy of compressed air into mechanical motion
* Pneumatic tube, a method of transportation utilising compressed air
Pneumatic air guns utilize pre-compressed air as the source of energy to propel the projectile.
Pneumatic systems are extensively used in industry, where factories are commonly plumbed with compressed air or compressed inert gases.
* Pneumatic air guns
Pneumatic systems in fixed installations such as factories use compressed air because a sustainable supply can be made by compressing atmospheric air.
Pneumatic logic systems ( sometimes called air logic control ) are often used to control industrial processes, consisting of primary logic units such as:
Pneumatic devices are still used in processes where compressed air is the only energy source available or upgrade cost, safety, and other considerations outweigh the advantage of modern digital control.
* Pneumatic: the governor mechanism sense air flow from the flywheel blower used to cool an air-cooled engine.
A Pneumatic gun differs from a rubber model in that it has a thicker spear that goes inside a sealed internal barrel encased in a hollow sealed outer casing that contains the air which is at ambient pressure until it is pumped up by hand to a pressure usually equal to one strong rubber band.
* Pack ( aircraft ), P. A. C. K ( Pneumatic Air Cycle Kit ), a kit containing an air cycle machine that provides air conditioning as part of an aircraft's environmental control system
The British employed Pneumatic valve bodies to regulate gear shifting by charging pistons with compressed air within the gearbox.
0.896 seconds.