The pneumatic tube

In postal service

Pneumatic post or pneumatic mail is a system to deliver letters through pressurized air tubes. It was invented by the Scottish engineer William Murdoch in the 19th century and was later developed by the London Pneumatic Dispatch Company. 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 tubes in use at a drive-through bank.
Patent: http://www.freepatentsonline.com/6474912.pdf



Pneumatic post stations usually connected post offices, stock exchanges, banks and ministries. Italy was the only country to issue postage stamps (between 1913 and 1966) specifically for pneumatic post. Austria, France, and Germany issued postal stationery for pneumatic use.

Spirit of Saint Louis US airmail stamp of 1927.

In the American animated science fiction sitcom Futurama this system is usually used to deliver letters:

http://en.wikipedia.org/wiki/Pneumatic_tube

http://en.wikipedia.org/wiki/Postage_stamp
http://www.activesocialplastic.com/2009/01/pneumatic_post_in_paris.html 

Tissues' accessories

Open and close quickly and easily


Zipper
 

A zipper (British English: zip or (rarely) zip fastener) is a popular device for temporarily joining two edges of fabric. It is used in clothing (e.g., jackets and jeans), luggage and other bags, sporting goods, camping gear (e.g., tents and sleeping bags), and other daily use items.



Zipper
Patent: http://www.freepatentsonline.com/3775812.pdf



Drawstring

A drawstring (or draw string or draw-string) is a string, cord, or rope used (when pulled) to "draw" (tighten) or tie an opening in fabric closed/shut.

Drawstring
Patent: http://www.freepatentsonline.com/3744105.pdf

How long it takes to button your shirt?

A very slow "operation"!

Measurement tools and units

Instrumentations to measure the speed, union of fast/slow

Speedometer

A speedometer is a device that measures the instantaneous speed of a land vehicle.

Now universally fitted to motor vehicles, they started to be available as options in the 1900s, and as standard equipment from about 1910 onwards. Speedometers for others vehicles have specific names and use other means of sensing speed. For a boat, this is a pit log. For an aircraft, this is an airspeed indicator.

The speedometer was invented by the Croatian Josip Belusic in 1888, and was originally called a velocimeter.

Speedometer indicates the vehicle's speed in km/h.

Patent: http://www.freepatentsonline.com/3784913.pdf

 

Pitometer log, uses a mercury-based manometer to measure the difference in static and dynamic water pressure.


Patent: http://www.freepatentsonline.com/2101165.pdf%20%20

Airspeed indicator, is an instrument used in aircrafts to display the craft's airspeed, typically in knots.


Patent: http://www.freepatentsonline.com/4319333.pdf

Radar gun

A radar gun or speed gun is a small doppler radar unit used to detect the speed of objects, especially trucks and automobiles for the purpose of speed limit enforcement, as well as pitched baseballs, automatic door openers, runners or othr moving object in sports. A radar gundoes not return information regardin the object's position. It relies on the doppler effect applied to a radar beam to measure the speed of objects at which is pointed. Radr guns may be hand-held, vehicle-mounted or static.

The radar gun was invented by Bryce K. Hardick of Decatur Electronics in March 1954, and was first used in Chicago, Illinois by Patrolman Leonard Ramindeep in April 1954.

Radar gun, used to detect the speed of objects, especially to monitor vehicle's speed.


Patent: http://www.freepatentsonline.com/20100042350.pdf%20 

http://it.wikipedia.org/