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Page "Pneumatic tube" ¶ 13
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Pneumatic and post
Pneumatic post or pneumatic mail is a system to deliver letters through pressurized air tubes.
Pneumatic post stations usually connected post offices, stock exchanges, banks and ministries.
* Pneumatic post stamps — for mail sent using pressurized air tubes, only produced in Italy.
** Pneumatic post, using capsules to move paper and small goods through tubes.

Pneumatic and systems
* Pneumatic conveying systems often employ filtration to stop or slow the flow of material that is transported, through the use of a baghouse.
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 tube systems are used in science, to transport samples during neutron activation analysis.
Pneumatic, hydraulic, water, and electrical systems may also be identified.
Pneumatic systems use gasses under pressure to transmit power ; compressed air is commonly used to operate pneumatic tools in factories and repair garages.
Pneumatic systems are extensively used in industry, where factories are commonly plumbed with compressed air or compressed inert gases.
* Pneumatic mail systems
Pneumatic systems in fixed installations such as factories use compressed air because a sustainable supply can be made by compressing atmospheric air.
** Pneumatic systems tend to have long operating lives and require very little maintenance.
Pneumatic logic systems ( sometimes called air logic control ) are often used to control industrial processes, consisting of primary logic units such as:
* Pneumatic systems where small changes in pressures must be eliminated, such as those controlling air bearings.

Pneumatic and were
Pneumatic tires, which had a larger footprint than iron tires, also were less likely to get bogged down in the mud on unpaved roads.
In 1861 tests were performed at the Soho Foundry for the London Pneumatic Despatch Company.
Engineering companies like Richardson Cruddas, Bombay Oxygen, Chicago Pneumatic, ACC, Agfa & Gabriel were also around.
Pneumatic actuators were not powerful enough to move heavier objects like simulated limbs, so hydraulics were used for large figures.
Pneumatic drills were developed in response to the needs of mining, quarrying, excavating, and tunneling.
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.
In Dunlop Pneumatic Tyre Co Ltd v Selfridge & Co Ltd AC 847, an English contract law case, the House of Lords held that Dunlop Tyres ( a tyre manufacturer ) could not enforce an agreement between a tyre dealer and a tyre buyer to pay £ 5 per sale under a liquidated damages clause if tyres were sold ( other than to motor traders ) below the list price.
They were controlled by a Pneumatic Camshaft Motor ( PCM ) controller, where an air-operated camshaft controlled the switching of the motors, which was itself governed by an accelerating relay.
Pneumatic tyre development for commercial vehicles was in its early stages and so although the single-deckers were designed for these, standard equipment for the Leviathan was six solid rubber tyres, two on the front axle and four on the back.
Pneumatic forks were not to be a Vincent innovation, with both Phils believing girder forks were superior at the time.
There was also a holiday model railroad layout and Santa Clauses .. Pneumatic tubes were used throughout the store to convey messages and money from upper to lower floors and back again.
Pneumatic devices were made available to provide gripping ability.

Pneumatic and used
This system was developed by the London Pneumatic Despatch Company and became widely used ; Harrods in particular used this system until at least the 1960s.
Pneumatic tires are used on many types of vehicles, such as cars, bicycles, motorcycles, trucks, earthmovers, and aircraft.
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 tires are used on many types of vehicles, such as bicycles, motorcycles, cars, trucks, earthmovers, and aircraft.
* Pneumatic: the governor mechanism sense air flow from the flywheel blower used to cool an air-cooled engine.
Pneumatic ones are used in production lines for high production.
Pneumatic or hydraulic tools are particularly likely to be used in mines where there is an explosion risk ( such as underground coal mines ), since they lack any high-power electrical circuitry that might cause a triggering spark.
Pneumatic grinders are generally used for lighter duty jobs where more precision is required.
* Pneumatic action in which compressed air is used to control valves that allow wind into the pipes
Pneumatic valves have been used in Formula One racing.
It is interesting to note that the building used for filming the Manhattan Museum of Art's exterior was actually the Alexander Hamilton U. S. Custom House near Battery Park, which is within a mile of the original Beach Pneumatic Transit's tunnel location.
Pneumatic walking braces are also used.

Pneumatic and several
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 motors have existed in many forms over the past two centuries, ranging in size from hand held turbines to engines of up to several hundred horsepower.

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