Recent Patent Specifications for Farming Inventions

New Zealand Journal of Agriculture, Volume 81, Issue 4, 16 October 1950, Page 306

Recent Patent Specifications for Farming Inventions

The following particulars of recent patent specifications of interest to farmers have been selected from the Patent Office Journal issued on July 24, 1950, and are published by permission of the Commissioner of Patents, Wellington. Photostat copies of any specification will be supplied for a small fee on application to the Patent Office. No. Description. Applicant. 98597 Potato Digger, N. V . Nilsson.

[Only those references which are necessary to an understanding of the specification are quoted in the abridgment below.] To avoid the disadvantage, common in ordinary potato diggers, of roots and vines gathering around the edges of the side shields and thereby impeding proper progress of soil and potatoes toward the delivery end of the digger, a shaft 10, transverse to the direction of travel, carries a number of pins 1 1 of which the two outermost pins move in a plane immediately outside their adjacent shields • - 4. The peripheral speed of the pins II is greater than . . .. .... ■ . . the driving speed of the potato digger and in the opposite, direction of its forward movement so that roots and vines or the like adhering to the side shields will be thrown by the pins backward along the machine. The vines are thereby pulled loose from the scooped-up soil mass and are thus removed from the operational area of the digger. Details as to the construction of the power drive for shaft 10 and an elevator 9 are also given. 90414 Butter Production (Salt Addition in Continuous Aktiebolaget Process), Separator. 93066 } Continuous Process of Buttermaking, Aktiebolaget 95396 Plough Lift, A. J. Chapman and 95421/2 Cloche for Plants, ' Chase Protected Culu tivation Ltd. 95876 Plant-hormone Compositions, • American Chemical ' Paint Co. 96558 Potato Sorter and Bagger, S. Malthus. 96757 Insecticide Compositions, N. V. De Bataafsche Petroleum Maatschappij. 97203 Hay Baler (Pick-up Type), International Harvester Co. 98358 Dissemination of Insecticides, The Wessex Aircraft Engineering Co., Ltd. 99245 Crop-lifting Attachment for Harvester, C. Galbraith. 100017 Flower-pot Moulding Machine, A. S. Kerr. 100847 Cap for Milk Bottle, C. D. Birchfield.