Patent GB-312641-A (GB)
Title: Improvements in or relating to plows
IPC: A01B3/26
Filed: 1929-05-22
Abstract: 312,641. Kopycinski, A. May 22, 1929. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 30, 1929]. Multiple - furrow ploughs; tools; adjusting and lifting parts; travelling and propelling gear; indicators; seats. - A multiple-share plough has the ploughing-tools arranged near together so as to cut thin furrow slices and each tool has a horizontal cutting - edge and an upwardly inclined cutting-edge arranged so that the land side of each furrow cut has a considerable inclination to the vertical, the plough being provided with an unsteerable rear wheel and with front wheels steered through the draught pole and connected with the plough frame by vertically arranged parallelograms. The ploughing tools 84, 85, 86 are carried by bars 63, 64 fastened to a frame made up of bars 57-62 and supported on three wheels 19, 39, 75. Uprights 26, 33 carrying the axles 20, 38 of the front wheels 19, 39 are connected to two shafts 136, 140 mounted in the frame by pairs of parallel links 29, 30 and 31, 32. They are movable vertically by rocking the shafts 136, 140 by turning a shaft 52 by means of a handle. 51, the shaft 52 being geared to screws connected by connecting-rods to arms on the shafts 136, 140. The rear wheel 75 is carried by an arm 73 adjustably fastened to a shaft 72 or its extension 172. It is raised or lowered by the rotation of a shaft 67 geared to a worm segment on the shaft 72 and connected by bevel gearing with the shaft 52. In order that the wheels 19, 39 and 75 may be adjusted separately or simultaneously means are provided for separately engaging or disengaging the gearing connecting the shafts 136, 140, 67 with the shaft 52 by the movement of handles 54, 55, 56. The actual. positions of the wheels are indicated by rods 48, 49, 50 moving over scales on a plate 47. The pole or bar 2 which carries a draught hook, and to which a draught pole may be attached, is connected to the frame by three bars 4, 7, 8 forming a jointed triangle adapted to turn about a pin 18. The height of the pole 2 is varied by adjusting the effective length of the bar 4. An upright 9 on the bar 7 is connected by links 11, 13 to rods or arms 15, 16 on parts 24, 36 carrying the axles 20, 38 so as to form parallelograms which cause the wheels 19, 39 to turn with the pole 2 for steering. In turning, the part 26 turns on a spindle 25 projecting from the part 24 and a spindle 37 projecting from the part 33 turns in the part 36. The inclination of the wheel 19 may be adjusted by turning it about a bolt 22 and securing it by means of a bolt 23 passing through perforations in the part 24. The attendant may walk beside the plough or sit on a seat 66. Cranks or levers may be provided for turning shafts to adjust the wheels 19, 39, 75 separately. Worm gearing may be substituted for the screws driven from the shaft 52. The shares may be made in one with the mouldboards, or separately. The Specification as open to inspection under Sect. 91 (3) (a) states that one of the wheels 19, 39 may be attached to the frame further back, that the upper part of the land side of the furrow may be vertical, that shares with mouldboards may be arranged alternately between shares without mouldboards, so that each mouldboard turns the slices cut by two shares, and that the front cutting-edges may be removable. This subject-matter does not appear in the Specification as accepted.