Patent GB-191409122-A (GB)
Title: Improvements in or connected with Ploughs, Harrows, and the like.
Inventor: ISZORO LEON SYXTUS D
IPC: A01B3/56
Filed: 1914-04-11
Granted: 1915-04-08
Abstract: 9122. Iszoro, L. S. d'. April 11. Steam and other p o w e r cultivation of land; ploughs; harrows; motor implements; adjusting parts of implements; steering implements; propelling implements; frames f o r implements. - Consists of a machine for ploughing, harrowing, or otherwise cultivating land automatically by petrol, wind, or other power, and for registering the work done. The machine is provided with two main driving- wheels 8, 9, Fig. 2, and with three other wheels 5, 5<a> on which it moves laterally at the headlands, after they have been lowered and turned through 90 degrees. The wheels 5, 5<a> are carried by forked spindles 4 provided with projecting arms 6 carrying rollers 7, which engage with double inclined planes 3 so as to raise the machine when the wheels are turned. The wheels 8, 9 are driven from a petrol, wind, or other motor 1 by worm gearing 27, a shaft 28, bevel reversing-gearing 21, 22, 23, the main shaft 10, and a clutch operated by hand or automatically. In order to allow of manoeuvring the machine, the wheel 9 is connected to the shaft 10 by a clutch operated by a lever and rod. The main shaft 10 drives a wheel 17, Fig. 6, which controls all the motions of the machine. The motor shaft 26 is connected to the axle of the wheel 5<a> by worm gearing 29, reversible bevel-gearing 30, 31, 32, shaft 33, clutch 34, spur gearing 36, 37, shaft 38, clutch 39, spur gearing 40, 41, worm gearing 42, 43, and a universally jointed telescopic shaft 44, 45. Chain gearing 53 and a clutch 51 connect the shaft 33 with an internally screwed shaft 47, which actuates a screw 49 connected to a double rack 59 gearing with a pinion 55, the rotation of which turns the wheel spindles 4 through crank-arms 56, 57 and connecting-rods 58. The sliding rack-bar 59 actuates the main clutch on the shaft 10 and also turns a pulley 62, around which passes a rope or chain 63 connected to a pivoted beam 65 carrying a single or double cultivating- implement at both ends. The implements are brought into working position alternately by the swinging of the beam. They are hinged to the beam and are held in position by pro jections on it. A second swinging beam 69 is connected to the beam 65 by chains or ropes passing over pulleys 74, and carries guide-rollers 72 mounted in pivoted arms 70. The clutch 51 is actuated by a slide bar 52, Fig. 6, which is lifted by a cam 20 on the controlling-wheel 17. The rocking shaft 84, on which is mounted the lever 86, Fig. 5, controlling the clutch 39, is connected by an arm 83 and an expanding rod 82 to a pivoted lever 75, which is connected to the bar 52. The lever 75 is provided with a spring-controlled tappet 79 adapted to engage a cam 80 secured on the screw 49. A second pivoted lever 81 moves the tappet out of the way of the cam when engaged by a cam 90 on a rod connected to an arm 88 on the shaft 84. When the longitudinal motion has been stopped, the machine and implements raised, and the wheels 5, 5<a> turned, the cam 80 engages the tappet 79 and causes the lever 75 to lift the bar 52 further and disengage the clutch 51. At the same time, the clutch 39 is actuated and the wheel 5<a> set in motion. This motion is stopped by the engagement of a cam on the wheel 37 with an arm on the clutch lever 86. This rocks the shaft 84 backwards and causes the cam 90 to actuate the lever 81 and disengage the tappet 79 from the cam 80. The spring 91 returns the tappet to its original position and actuates the lever 75 and rod 52, causing the screw 49 to move further in the same direction to lower the machine, bring the cultivating-implements into position, and put the clutch on the shaft 10 into operation. The lever 85 for controlling the clutch 34 and reversing the motion of the screw 49 is mounted loosely on the shaft 84 and is actuated by a pivoted lever 92, Fig. 5, carrying pins 100, 101 to engage with pins 18, 19 on the controlling-wheel 17. The levers 85, 92 are connected by a compound compensating-link 95, 95<a> which is provided with lugs adapted-to be engaged by the end of the lever 86, so that this lever 86 may move the lever 85 with it. Springs surrounding pivoted pins 102, 102<a> keep the levers 85, 86 in position. If the machine is to be controlled by hand, the clutch levers may be fixed in neutral positions. The machine may be stopped or reversed at any time by means of a sliding spring-controlled rod 109 actuating the clutch bar 52. An indicator of any kind is provided in connexion with the controlling-wheel 17 to, register the number of journeys made, and thus the work done.