Caldwell / Caldwell Vale

Felix and Norman Caldwell were inventors from South Australia and in 1907 patented a four-wheel drive system (Commonwealth of Australia Patent # 9493/1907 "Improvements in and connected with driving and steering motor propelled vehicles").

In 1910 Henery Vale joined the brothers and provided financial support. Caldwell Vale was created, manufacturing from Sydney, New South Wales, making motor-ploughs, tractors, locomotives and other motor-driven vehicles. In 1912 Felix Caldwell patented an "Improved compensating gear for motor vehicles" (Commonwealth of Australia Patent # 4959/1912). The company was taken over in 1916 by Purcell Engineering.

Also part of the Ivan Hoffmann Collection, but not appearing here are copies of - Patent # 9493/1907; Patent # 4959/1912; articles; photos; correspondence; Articles of Association of the Caldwell-Vale Motor and Tractor Construction Company; film reference.

Also see www.booleroosteamandtraction.org.au

14 August 1907 Patent 9493 figures 1-3

17 November 1909 The Adelaide Stock And Station Journal

1910 engine

1911

29 April 1911 South Australia Register

17 June 1911

15 May 1912 Patent_4959_figure 1-2, 5-6

1913

1 February 1914 The South Australian Motor

 Patented loader

24 November 1915 Evening Journal

"Vanguard" Purcell Engineering page 1

"Vanguard" Purcell Engineering page 2

1949

November 1966 Horseless Carriage Gazette

Australian Antique Auto News page 1-2

Australian Antique Auto News page 3

February 1987 Modern Motor page 1-2

February 1991 Truck & Bus Transportation page 1-2

January 1999 Restored Cars #132 page 1-2

Australian Classic Car

February 2007 The Australian Cottongrower page 1

Vanguad Purcell Engineering

Vanguad Purcell Engineering

Vanguad Purcell Engineering