Patent GB-370974-A (GB)
Title: Improvements in or relating to harvesting machines
IPC: A01D57/20
Filed: 1931-01-09
Abstract: 370,974. Harvesting - machines. INTERNATIONAL HARVESTER CO. OF GREAT BRITAIN, Ltd., 259, City Road, London.-(International Harvester Co. ; 606, South Michigan Avenue, Chicago, U.S.A.) Jan. 9,1931, No. 863. [Class 6 (iii).] A harvester of the type whereby the cut grain is laid in the form of windrows, comprises, in combination, a conveyer adapted to receive and convey the cut grain to a delivery plate which receives and deflects the flow of grain so as to deliver it in the field in the form of a windrow, driving means for the conveyer including a clutch device operable to arrest the motion of the conveyer and to restart said motion after a predetermined interval, and means for adjusting the position of the delivery plate in timed relation with the stopping and restarting of the conveyer. The windboard 29 at the rear of the platform 24 is formed with an arch 30 to allow the grain to turn into windrows. A board 32 extending from the Z-bar 25 into an opening 33 in the platform, receives the butt ends of the grain delivered by the conveyer 34. A reel 38 is driven through a shaft 37, gears 39, 40, shaft 41, sprocket wheel 44, chain 45, sprocket wheel 46 and shaft 47 ; the latter shaft also carries a crank connected to a pitman for reciprocating the cutting mechanism 28. The shaft 47 extends into a gear box 50, gears in which are connected to a countershaft 51, gears 52, 53 and a shaft (not shown) driven by chain and sprocket gear from the main wheel 15. A brake lever 57 is connected to mechanism in a brake drum 56. A clutch lever 59 controls the main clutch in the gear box 50. A lever 70 enables the raising of the counterbalanced main platform. The conveyer 34 is driven by a chain 65 from a sprocket wheel 64 loose on the shaft 41. A clutch between the sprocket wheels 44, 64 comprises a hub 71 integral with the wheel 44 and projecting into a drum 72 on the wheel 64, the inside of the hub 71 being provided with stops 73. A dog 76 mounted on the drum 72 comprises a roller 77 normally spring-pressed against one of the stops 73. Fast on the shaft 41 is a worm gear 79 meshing with a slowly turning worm pinion 80 having a hub with internal stops 82, the pinion 80 being loosely mounted on a stationary stub-shaft 83 which also carries a distance control cam disc 84 having a dwell 85 between it and an adjustable cam sector plate 86. The disc 84 is bolted to a plate 90 carrying a dog 92, a roller 93 on which normally engages one of the stops 82, and to a disc 95 having a peripheral notch 96. A pivoted lever 98 operated by a pull rope 100, carries an offset roller 101 engaging the notch 96 to stop the plate 95, and protruding into the path of an extension 94 of the dog 92 to trip the roller 93 out of engagement with the stop 82, thereby freeing the cam 84 from the gear 80. The lever 98 is restored to its locking position by a spring 102. A trip arm 104 connected to a lever 106 functions to trip the dog 76. The lever 106 carries an offset roller 108 riding the periphery of the cam 84, the other end of the lever being connected by a chain 111 to a crank arm 112 operating the delivery plate 32. The action may be made entirely automatic by connecting the rope 100 to a post 1161 at the stubbleward end of the axle of the pilot wheel truck 12.