| September/October 1952

  • Decker Tractor
    The Decker tractor. See Canadian Notes
  • Decker Engine
    The Decker Engine showing arrangement of valve gear. See Canadian Notes
  • Decker Separator
    Hand Fed Decker Separator, 1906. See Canadian Notes
  • Harold, Reuben, Raymond'
    Four generations of Bohman Thershermen. From left to right: Harold, Reuben, Raymond and Alfred Bohman. October 13, 1951. Sent by R. G. Bohman, Alpha, III.
    R. G. Bohman

  • Decker Tractor
  • Decker Engine
  • Decker Separator
  • Harold, Reuben, Raymond'

Goderich, Ontario, Can.

On a lovely autumn day early in October, 1876, an auction sale was in progress on the farm of James Macdonald five miles south of Clinton, Ontario. While the father's stock and implements went to the highest bidders a thirteen year old boy stood wistfully regarding the model threshing machine he had painstakingly constructed from a wooden box and odds and ends found around the farm. The little machine was complete to straw-carrier and was operated by a belt from the grindstone. Now, the family were moving and it had to be left behind. Realizing the situation, a neighbor boy, Michael Whitmore, came over and offered him fifteen cents.... Peter Macdonald had built and sold his first machine in a lifetime devoted to the manufacture of threshing machinery.

The year before, Alex. Macpherson, mechanic, and John P. Macdonald, book-keeper from the firm of Glasgow, Macpherson and Co., of Clinton, Ontario, decided to start a threshing machine business of their own and chose Stratford, a railway center fifty miles east, as the site of their business venture.

Running shy of capital to complete their factory they appealed to John P. Macdanald's brother James to sell his farm and go into partnership with them. The firm, known as Macdonald and Macpherson Co., built and sold without difficulty the thirty threshers they planned for 1877 and the success of their machines from the start assured increasing sales and prosperity for the company. These threshers were of the conventional apron or canvas type with side shake shoe. About 1880 an end shake shoe was adopted and four years later they placed on the market the first of their deck type separators. This machine was remarkably simple in design. The straw-deck was hung on arms below the cylinder and was attached to a revolving crank at the back end. The resulting motion tossed the straw upwards and backwards with each revolutions. In later years the deck was lengthened to replace the tail rakes but so efficient and easy running were the early models that the general design was never changed. Wind stackers, self feeders, baggers, weighers, and rear cutting attachments were added as they came into general use.

The canvas type machines were called the 'Standard' and were built as long as the demand for this type lasted. While the first deck type machine was being built a workman casually referred to it as the 'Decker.' The name caught on and was adopted for the new type separator. The use of the name grew and before many years the firm' output was advertised as the 'Decker' Line of Threshing Machinery.

Alex. Macpherson did not live many years and after his death the two Macdonald brothers carried on the business as the Macdonald Manufacturing Company. Young Peter attended school in Stratford for two years then entered the Grand Trunk Railway Shops as an apprentice machinist. In addition to learning his trade, Peter's work on locomotives developed a deep and lasting interest in steam engines. A few years later he and his brother John K. Macdonald joined their father and uncle in the threshing machine business where Peter's training and interest was directed towards the mechanical end while his brother just as naturally favored working with wood.


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