Grace's Guide

The Best of British Engineering 1750-1960s

Rotary Hoes

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 1958. Howard Gem 8hp.
1958. Howard Gem 8hp.

Rotary Hoes of Harleston produced Howard Rotovators

  • 1912 The powered rotary hoe was invented by Arthur Clifford Howard who began experimenting with rotary tillage on his father's farm at Gilgandra, New South Wales, Australia. Initially using his father's steam tractor engine as a power source, he found that ground could be mechanically tilled without soil-packing occurring, as was the case with normal ploughing. His earliest designs threw the tilled soil sideways, until he improved his invention by designing an L-shaped blade mounted on widely spaced flanges fixed to a small-diameter rotor. With fellow apprentice Everard McCleary, he established a company to make his machine, but plans were interrupted by World War I.
  • 1919 In 1919 Howard returned to Australia and resumed his design work, patenting a design with 5 rotary hoe cultivator blades and an internal combustion engine, in 1920.
  • 1922 In March 1922 Howard formed the company Austral Auto Cultivators Pty Ltd, which later became known as Howard Auto Cultivators. It was based in Northmead, a suburb of Sydney, from 1927.
  • 1938 Finding it increasingly difficult to meet a growing worldwide demand, Howard travelled to the United Kingdom, founding the company Rotary Hoes Ltd in East Horndon, Essex, in July 1938.
  • 1938 Public company.
  • 1961 Manufacturers of "Howard Rotavators" soil stabilising machinery, trench diggers and ratchet jacks. Also manufacture "Gem", "Howard 700" and "Bantam" complete power driven implements. 1,500 employees.
  • Branches of this new company subsequently opened in the United States of America, South Africa, Germany, France, Italy, Spain, Brazil, Malaysia, Australia and New Zealand. It later became the holding company for Howard Rotavator Co. Ltd.
  • The Howard Group of companies was acquired by the Danish Thrige Agro Group in 1985, and in December 2000 the Howard Group became a member of Kongskilde Industries of Soroe, Denmark.

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