Parking meters

A parking meter is a device used to collect money in exchange for the right to park a vehicle in a particular place for a limited amount of time. Parking meters can be used by municipalities as a tool for enforcing their integrated on-street parking policy, usually related to their traffic and mobility management policies, but are also used for revenue.

An early patent for a parking meter, US patent, was filed by Roger W. Babson, on August 30, 1928. The meter was intended to operate on power from the battery of the parking vehicle and required a connection from the vehicle to the meter.

Holger George Thuesen and Gerald A. Hale designed the first working parking meter, the Black Maria, in 1935. The History Channel's... History's Lost and Found documents their success in developing the first working parking meter. Thuesen and Hale were engineering professors at Oklahoma State University and began working on the parking meter in 1933 at the request of Oklahoma City, Oklahoma lawyer and newspaper publisher Carl C. Magee. The world's first installed parking meter was in Oklahoma City on July 16, 1935. Magee received a patent for the apparatus on 24 May 1938.

Industrial production started in 1936 and expanded until the mid-1980s. The first models were based on a coin acceptor, a dial to engage the mechanism and a visible pointer and flag to indicate expiration of paid period. This configuration lasted for more than 40 years, with only a few changes in the exterior design, such as a double-headed design (to cover two adjacent parking spaces), and the incorporation of new materials and production techniques.

M.H. Rhodes Inc. of Hartford, Connecticut started making meters for Mark-Time Parking Meter Company of Miami, where the first Rhodes meters were installed in 1936. These were different from the Magee design because only the driver's action of turning a handle was necessary to keep the spring wound, while Magee's meters needed a serviceman to wind the spring occasionally.

Upon insertion of coins into a currency detector slot or swiping a credit card or smartcard into a slot, and turning a handle (or pressing a key), a timer is initiated within the meter. Some locations now allow payment by mobile phone (to remotely record payments for subsequent checking and enforcement). A dial or display on the meter indicates the time remaining. In many cities, all parking meters are designed to use only one type of coin. Use of other coins will fail to register, and the meter may cease to function altogether. For example, in Hackensack, New Jersey all parking meters are designed for quarters only.

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Wikipedia