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A tubular lock and key. A tubular pin tumbler lock, also known as a circle pin tumbler lock, radial lock, or the trademark Ace lock popularized by manufacturer Chicago Lock Company since 1933, is a variety of pin tumbler lock in which a number of pins are arranged in a circular pattern, and the corresponding key is tubular or cylindrical in shape.
The Historic Michigan Boulevard District is a historic district in the Loop community area of Chicago in Cook County, Illinois, United States encompassing Michigan Avenue between 11th (1100 south in the street numbering system) or Roosevelt Road (1200 south), depending on the source, and Randolph Streets (150 north) and named after the nearby Lake Michigan.
We found the best technology for adults over 65 at CES this year. From AI aids to ‘aging in place’ smart home solutions, the annual tech show kept older users in mind.
The first known example of a tumbler lock was found in the ruins of the Palace of Khorsabad built by king Sargon II (721–705 BC.) in Iraq. [1] Basic principles of the pin tumbler lock may date as far back as 2000 BC in Egypt; the lock consisted of a wooden post affixed to the door and a horizontal bolt that slid into the post.
Chicago Lock Co. is a lock manufacturer, founded in Chicago in 1920. Since 1933, it has sold a tubular pin tumbler lock marketed under the registered trademark "Ace." Millions of Ace locks have been sold; for instance, these locks are used in Northwestern Corporation 's Triple Play bulk vending machine.
The Chicago community of South Shore looks different today than when Arlean Pleasant, an 83-year-old resident, was raising her children. The once family-oriented community is now increasingly ...
According to a recent survey of U.S. seniors between the ages of 62-85 by Indeed Flex, almost one in three retirees are considering temporary work and un-retirement, primarily due to inflation’s ...
The Michigan–Wacker Historic District is a National Register of Historic Places District that includes parts of the Chicago Loop and Near North Side community areas in Chicago, Illinois, United States. The district is known for the Chicago River, two bridges that cross it, and eleven high rise and skyscraper buildings erected in the 1920s. [3]