Blaw-Knox

In 1906, Jacob B. Blaw created the Blaw Collapsible Steel Centering Company, located in New Jersey, to manufacturer his patented steel form used to construct improved concrete circular tubes for sewers and tunnels.

[3][4] In 1929, Blaw-Knox purchased the A. W. French & Company paving equipment company, which manufactured machines that produced concrete roads, a natural extension of the Blaw-Knox expertise in concrete and steel works.

[5] Blaw-Knox went on to establish a broad line of paving machines for the US and UK markets.

The Blaw-Knox UK design and manufacturing division was eventually based at Rochester, Kent, in southeast England, on the former site of the Short Brothers flying boat factory.

[7] Clark cited its Blaw-Knox unit as a reason for the US Federal Court to stop the takeover, claiming that Ingersoll-Rand would violate Federal antitrust laws since Ingersoll-Rand already controlled a significant share of the paving equipment business, having purchased the German paving equipment company ABG in 1990, while Blaw-Knox owned a major share of the US paving market (which would grow to 50% of all new pavers bearing the Blaw-Knox brand by 2006).

[9][10][11] In July 2020, Volvo Construction Equipment sold Blaw-Knox pavers to Gencor Industries Inc.[12]