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The Contractors State License Board (CSLB) follows a long history of consumer protection and licensing in California. Consumer protection began in 1876 when California passed the Medical Practice Act which would use licensing to combat completely unregulated medical practice.
John Calvin Jureit (July 24, 1918 – September 9, 2005) was a civil engineer and the inventor of the Gang Nail connector plate, used in building construction specifically for the joining of timber truss joints of roof, floor trusses and prefabricated wall panels. This invention has been widely credited for the boom in affordable housing ...
The Pratt truss form, invented in 1844 by Thomas and Caleb Pratt, is the most common truss form in California and the United States. This form first appeared as a "combination truss" built in wood and iron with wooden vertical members, chords, and endposts, and iron tension diagonals. The basic form changed to all-metal construction by the 1880s.
The California Department of Consumer Affairs (DCA) is a department within the California Business, Consumer Services, and Housing Agency. DCA's stated mission is to serve the interests of California's consumers by ensuring a standard of professionalism in key industries and promoting informed consumer practices.
Timber roof truss example. The top members of a truss are known generically as the top chord, bottom members as the bottom chord, and the interior members as webs.In historic carpentry the top chords are often called rafters, and the bottom chord is often referred to as a tie beam.
Also, they were often similar to the Jennings barn design of 1879 (patent #218,031) with no tie beam so there were no beams to interfere with a hay fork (horse fork) on a track system (hay carrier) for pitching hay which became popular c. 1877. The gambrel roof shape lends itself to plank truss construction and became the most popular roof type.
The Waterville Bridge in Swatara State Park in Pennsylvania is a lenticular truss Lenticular trusses, patented in 1878 by William Douglas (although the Gaunless Bridge of 1823 was the first of the type), have the top and bottom chords of the truss arched, forming a lens shape.
Cosmetology (from Greek κοσμητικός, kosmētikos, "beautifying"; [1] and -λογία, -logia) is the study and application of beauty treatment.Branches of specialty include hairstyling, skin care, cosmetics, manicures/pedicures, non-permanent hair removal such as waxing and sugaring, and permanent hair removal processes such as electrology and intense pulsed light (IPL).