GB1106002A - Improvements in or relating to harvesting machines - Google Patents

Abstract

1,106,002. Combine harvesters. TEXAS INDUSTRIES Inc. 16 Feb., 1965 [26 Feb., 1964; 3 June, 1964], No. 6715/65. Heading A1F. [Also in Division B5] A combine harvester comprises two mowing table portions 14 each including a frame consisting of members 29-32, and 34 (Fig. 4) and 33 (Fig. 7), each frame member 29 being pivotably connected by pins 24, 25 to one side of an elevator housing 15, so that the corresponding portion may be raised by hydraulic cylinders (108) (Fig. 6, not shown) to a substantially vertical transport position. Vertical adjustment of the portions together with the elevator housing about shaft 17 (Fig. 7) is effected by hydraulic cylinders 114. Adjustment of the mowing table height and of height of reels 48 is affected by hydraulic cylinders (64, 51) (Fig. 11, not shown). The hydraulic control includes a lever 124 (Figs. 9 and 10) and associated cam discs 127, 128 engaging valve-operating sliding rods 135, 131 respectively. With the lever 124 in the position shown valve 130 is open and communicates with valve 118 and valve 129, which is identical to valve 118, is closed. A feeler member 68 when it engages ground irregularities operates the valve 118 through linkage 70, 71 and thus causes fluid to be introduced to or exhausted from cylinders 114 so that the height of the mowing table shall remain constant. When the lever 124 is moved to the left the valve 130 is closed and valve 129 opens to allow fluid to pass from pump 121A to the cylinders 114 to raise the mowing table. The cam 127 includes a portion which causes the valve 129 to close when the lever is located in part 125 of sector plate 126 so as to hold the mowing table in an intermediate position. The cam 127 is so shaped that when the lever abuts element 125A the valve 129 is opened so as to permit fluid to pass from the cylinder 114 to the reservoir 121, thus the mowing table is lowered. The hydraulic cylinders (51, 64) and (108) are controlled by valves (158, 133, 151) (Fig. 11, not shown) each being identical to the valve 118 and each being connected to the reservoir 121 and pump 121A. Cutter bars 54, augers 55, and reels 48 are driven from gear boxes 75 via telescopic shafts, gear boxes 84, shafts 85 and gear boxes 86. The portions can be locked in their vertical or horizontal positions. In a further embodiment (Figs. 1-3, not shown) the mowing table portions are pivotally mounted on a single forwardly extending substantially horizontal shaft.