Arch block building system

Details Arch block building system Arch block building system

1978-09-25

1980-09-02

Kinsey, Russell R.

52 89, E04B 132, A63H 3306, E04C 124

Patent

active

042199611

ABSTRACT:
An arch block building system to simplify the building of arches in architectural construction and in toy block sets is provided by this invention. The arch block building system, which consists of only four basic shapes, simplifies the builder's construction of arches for use in bridges, entranceways and other structures, and provides an educational tool to teach the principles of arch construction through its use in toy block sets.

REFERENCES:
patent: 124078 (1872-02-01), Ostrander
patent: 1038996 (1912-09-01), Warner
patent: 1736134 (1929-11-01), Rutherford
patent: 2158943 (1939-05-01), Mamula
patent: 2295352 (1942-09-01), MacDonald
patent: 2572242 (1951-10-01), Burchett

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