GB422142A - Improvements relating to expanding horse hoes or cultivators - Google Patents

Abstract

422,142. Implements for working land. GARRETT, B. G., and GARRETT & SONS, Ltd., G. J., Darenth Valley Iron Works, Sutton-at-Hone, Kent. Oct. 13, 1933, No. 28405. [Class 6 (i)] In an expanding horse-hoe or cultivator comprising tinecarrying bars pivoted at their forward ends and connected by links 17 to a box member 11 which is slidable along the central frame member 4 and is secured in adjusted position by a clamping screw 12 bearing on a pressure plate, that part of the central frame member on which the box slides consists of a composite bar built up of bars of solid section, and the pressure plate 13 interposed between it and the clamping screw 12 is roughened or corrugated. The composite bar is formed by bolting or riveting two short bars 10 of rectangular section to the central rectangular frame bar 4, the longer sides of the cross-section of the bars 4, 10 being vertical. The bars 10 may be spaced from the bar 4. The pressure plate 13 is toothed on its under surface and its ends are turned up to secure it in the box 11. The links 17 are pivoted on a screw or bolt 16 in the bottom of the box 11. The handle frame is connected to the upturned ends of the bars 10 and is adjustably supported on the bar 4 by apertured bars 20 and a pin. There may be more than one screw 12. There may also be more than one box member 11 when there are more than two tine-carrying arms.