although the disclosure hereof is detailed and exact to enable those skilled in the art to practice the invention , the physical embodiments herein disclosed merely exemplify the invention which may be embodied in other specific structures . while the preferred embodiment has been described , the details may be changed without departing from the invention , which is defined by the claims . as illustrated in the figures , a preferred embodiment of the harvester 10 is shown in connection with the harvesting of celery , but it is to be understood that the harvester 10 may be used to harvest other similar types of upstanding vegetables , such as cabbage and the like . as it may be observed particularly in fig1 - 4 , the harvester 10 may be provided with wheels , tracks 12 , or other earth - engaging members and driven by a prime mover , such as the diesel engine 14 shown . the harvester 10 further includes a forward end 24 and a trailing end 26 , with an operator &# 39 ; s station or cab 16 located at the forward end 24 to provide maximum visibility by the operator ( not shown ). in the figures , the harvester 10 is illustrated as generally including a track - laying , power - driven tractor 18 having tracks 12 for movement of the harvester 10 along crop rows 200 ( seen in fig1 ). a supporting structure 20 is mounted on the tracks 12 , which comprises a plurality of frame members 22 . as may be further seen in the figures , the forward end 24 of the harvester 10 is provided with an initial cutting station 30 . illustrated particularly in fig7 and 8 , the initial cutting station 30 may be provided with ground - engaging wheels 32 mounted on axle 34 . a housing , or protective shroud 36 , is further provided for the purpose of surrounding initial cutting elements 37 , 38 ( see particularly fig8 ). as seen , the shroud 36 includes at least one open end 35 which allows entry of the rooted and upstanding plant 100 to be harvested as the harvester moves along the crop rows 200 . as may be observed in the figures , cutting element 38 is preferably in the form of a horizontally rotatable blade 38 , which is rotated by auxiliary drive 39 . in operation , as the harvester 10 advances , blade 38 is arranged to remove the leafy portion of the plant 100 ( seen as celery in these views ). the initial cutting station 30 preferably further includes means for severing the plant 100 from the roots ( not shown ). for this purpose , and as shown particularly in fig8 , the initial cutting station 30 may include at least one root cutting blade , such as the butt knife 37 , shown for severing the plants 100 from the ground . as seen in fig1 , the harvester 10 further includes a forwardly extending elongated boom 40 defined by one or more oppositely disposed elevating conveyor supporting side frames 42 . the boom 40 supports the aforementioned initial cutting station 30 at its distal end 46 and is pivotally and slidably mounted at its elevated proximal end 41 for unique movement in both a vertical plane and a horizontal plane . elevating conveyor side frames 42 support a plurality of resiliently faced , endless elevator belts 44 , 44 a which are each supported at the distal and proximal ends 46 , 41 , respectively , of the boom 40 . as illustrated , the harvester 10 may include a pair of belts 44 , 44 a for each row 200 ( see fig1 ) of plants 100 ( see fig7 ). as the harvester 10 advances , each pair of belts 44 , 44 a grasps , in sequence , the topped plants 100 as the root cutting butt knife 37 ( see fig8 ), mounted below the belts 44 , 44 a severs the plant 100 from the ground . conveyor frames 42 , along with the cooperating belts 44 , 44 a , are located directly behind the cutting station 30 and serve to raise the severed plants 100 from ground level to elevated trans - slicing station 50 . individual spindle members 47 serve to rotatably support and drive the belts 44 , 44 a . intermediate drive members serving the spindles 47 are not specifically shown , but derive power from the hydraulic pump 15 via conventional power coupling means . as illustrated particularly in fig1 and 9 , as the belts 44 , 44 a , raise the severed plants 100 toward elevated trans - slicing station 50 , the plants 100 are deposited on intermediate belt pairs 48 , 48 a . as may be observed particularly in fig9 , intermediate belt pairs 48 , 48 a serve to move the severed plants 100 into the slicing station 50 and may include angularly disposed belt elements for optimal control and positioning of the plants 100 . it is to be noted that while not specifically shown , motive power for the cooperating elements is derived from the hydraulic pump 15 via conventional power coupling means . as is shown in phantom , the hydraulic pump 15 is powered by diesel or other internal combustion engine 14 ( see particularly fig9 ). further , it is to be understood that while hydraulic pump 15 is illustrated by way of example , other conventional power sources may be utilized . as seen particularly in fig1 and 9 , an elevated trans - slicing station 50 includes a cutting wheel 52 supporting a plurality of radially extending blades 54 . as may be observed , the blades 54 may be radially arranged around an axle 56 , such that as the plants 100 are moved toward the blades 54 in the direction of the arrow 58 , they are sliced into individual pieces 59 having a predetermined size . as mentioned previously , cutting wheel 52 , such as that shown , may be manufactured by urschel laboratories , inc . of valparaiso , ind ., for example . the cutting wheel 52 may be interchanged and positioned for maximum versatility according to the cut desired , such as , slicing , julienne , or the like , by way of example . the trans - slicing station 50 is conveniently adaptable for uniformly slicing the celery stalks or other elongated , harvested vegetable , with precision and at high capacities . turning specifically to fig7 and 9 , it may be observed that the harvester 10 may further include a debris - removal station 60 . as seen in these views , the sliced pieces 59 exit the trans - slicing station 50 to fall beneath a suction hood 66 of the debris - removal station 60 and onto auxiliary conveyor 64 . auxiliary conveyor 64 carries the pieces 59 in the direction of arrow 62 . as seen particularly in fig1 , the debris - removal station 60 of the present embodiment may include a fan 67 or other device to create a partial vacuum under the hood 66 to draw debris 68 , such as dirt and other particulate matter , away from the pieces 59 and through duct 69 . as illustrated particularly in fig9 , the debris 68 moves through the hood 66 and duct 69 in the direction of arrow 65 to be deposited at the trailing end 26 of the harvester 10 ( seen in fig7 ). with reference to fig9 and 10 in particular , it may be seen that auxiliary conveyor belt 64 moves the pieces 59 , now separated from the debris 68 , in the direction of arrow 62 and toward a grading station 70 . there the pieces 59 are graded according to desired final product size . illustrated particularly in the view of fig1 , the grading station 70 may include a grate 72 having a plurality of cross bars 74 which may be spaced to define transversely spaced interstices configured to permit passage of cross - sliced or julienne cut product , depending on the grading operation desired . for example , a wider spacing allows larger sized pieces 59 to fall through , while a smaller spacing allows only the smallest pieces 59 to fall through . with further reference to fig1 , pieces 59 which are permitted to fall through the grate 72 land on tray 76 . as illustrated , the grading station 70 may further include means for horizontal movement in the direction indicated by arrows 77 to thereby encourage the pieces 59 to fall through the grate 72 , as described . any pieces 59 which do not fall through to tray 76 , move in the direction of arrow 78 and ultimately fall to the ground ( not shown in this view ) as debris . pieces 59 which fall through the cross bars 74 are deposited on tray 76 and are encouraged in the direction of arrow 79 toward a perpendicularly disposed conveyor 80 . conveyor 80 moves the graded pieces 59 in the direction of arrow 82 to a laterally extending , off - loading conveyor 84 . the off - loading conveyor 84 serves to move the graded pieces 59 toward a transport container or vehicle 86 ( seen in phantom in fig1 ). the transport vehicle 86 travels across the field alongside the harvester 10 in a conventional manner . it may be observed in the view of fig2 that the off - loading conveyor 84 may be moveable between a laterally - extending functional position , and a stowed , retracted position , shown in phantom . a further feature of an embodiment of the present harvester 10 is exemplified in the views of fig3 - 6 , and 11 . as shown , the harvester 10 may be provided with means to laterally shift the cooperating components such as the cab assembly 16 , initial cutting station 30 , boom 40 , slicing station 50 , and debris - removal station 60 to alternative sides of the harvester 10 . as illustrated particularly in the views of fig5 and 6 , components 30 , 40 , 50 , and 60 may be shifted in the direction of arrow 88 to thereby align the components 30 , 40 , 50 , and 60 along an alternative side . the harvester 10 then operates in the manner previously described while utilizing an alternative laterally extending , offloading conveyor 84 . this feature allows the user of the harvester 10 to easily harvest adjacent crop rows 200 ( see particularly fig1 ). typically , when a harvester reaches the end of a row , the driver must turn the harvester to proceed down a parallel , but not adjacent crop row . this requires a subsequent trip down the adjacent row . the ability of the present harvester 10 to shift the components 30 , 40 , 50 , and 60 , to thereby align them on alternative sides of the harvester 10 , permits the harvester 10 to harvest adjacent crop rows 200 without the requirement of revisiting alternate rows later in the harvesting process . as may be seen in fig3 and 4 , shifting of components 30 , 40 , 50 , and 60 is accomplished by first lowering the operator cab assembly 16 in the direction of arrow 17 and raising the cutting station 30 and boom 40 in the direction of arrow 45 . as previously mentioned , the boom 40 may be pivotally mounted at its elevated proximal end 41 for unique movement in a vertical plane , with the operator cab 16 being mounted for vertical movement relative to the boom 40 . as seen in fig1 - 4 , the boom 40 is pivotally supported at 91 on framework 90 . as is further seen in fig3 , the boom 40 is rotated upward in the direction of arrow 45 to provide clearance between it and the cab assembly 16 . other pivotable means may also be utilized , such as a rotatably movable tubular shaft positioned circumjacent to a stationary supporting shaft ( not shown ). likewise , the cab assembly 16 may be adapted for vertical movement . as may be observed particularly in the views of fig1 - 4 , the cab assembly 16 may be attached to the tractor 18 by way of vertical support member 92 . vertical movement of the cab assembly 16 may be effected by use of the vertical support member 92 and tubular shaft 93 positioned circumjacent the support member 92 , as shown , or other conventional means . motive power for vertical movement of the cab assembly 16 may be derived from the hydraulic pump 15 shown , or other conventional means . the lowering of the cab assembly 16 and raising of the boom 40 provides clearance between the cab 16 and boom 40 to thereby allow the boom 40 , elevated trans - slicing station 50 , and debris removal station 60 to move horizontally , from a first side of the harvester 10 to an alternative side . as seen in the view of fig6 , once the boom 40 and cab assembly 16 have been moved vertically relative to one another as discussed to provide clearance , the boom 40 , trans - slicing station 50 and debris removal station 60 may be horizontally shifted in the direction of arrow 88 to an adjacent side . concurrently , the cab assembly 16 may be horizontally shifted in the direction of arrow 89 to an opposed , adjacent side . during horizontal movement of cooperating parts the trans - slicing station 50 rides on rails 94 a , 94 b along with the proximal end 41 of the boom 40 which rides on rails 94 c , 94 d . as may be observed particularly in fig1 , the trans - slicing station 50 further includes at least one extending gripping member 96 which engages a corresponding stationary rail 94 a , 94 b for relative longitudinal movement of the trans - slicing station 50 . likewise , support frame 90 may further include at least one extending gripping member 96 which is adapted to slidingly engage a corresponding stationary rail 94 c , 94 d for relative longitudinal movement of the boom 40 . in a similar manner , the cab assembly 16 rides on rails 94 e . as illustrated , the cab assembly 16 is supported on the forward end 24 of the harvester 10 by way of a frame 95 which preferably further includes means to slidingly engage rail 94 e . as illustrated , the frame 95 may include least one extending gripping member 96 which slidingly engages rail 94 e to thereby facilitate horizontal movement of the frame 95 and attached cab assembly 16 . horizontal movement of the cooperating parts may be effected by way of the chain 97 and sprocket 98 arrangement shown , or by other conventional means . power for the horizontal movement may be derived from the aforementioned hydraulic pump 15 . after the boom 40 , trans - slicing station 50 and debris removal station 60 have been horizontally shifted , as discussed , the boom 40 and cab 16 are then returned to their usual operating positions . as seen , the harvesting and processing procedures remain the same regardless of which harvester operating side is utilized , while using an alternative , corresponding conveyor 64 and off - loading conveyor 84 . although the trans - slicing station , 50 is illustrated as being mounted on rails 94 a , 94 b to facilitate sliding of the components , it is to be understood that other mounting mechanisms that enable similar shifting of components may be envisioned . fig1 depicts a harvester 10 of the present invention as it moves along a crop row 200 . the path of the harvester 10 , shown in solid line , illustrates the harvester turning at an end of a row , with a harvester 10 in phantom showing an un - shifted apparatus . fig1 illustrates the manner in which a harvester is unable to access the nearest adjacent row 200 and must skip a row and harvest an alternating row 200 unless the harvester is able to shift components as herein described . as shown , and as described hereinabove , the present harvester 10 is enabled to shift operating components 30 , 40 , 50 , and 60 to thereby gain access to the immediately adjacent crop row 200 . this capability saves harvest time and provides a cost savings . the foregoing is considered as illustrative only of the principles of the invention . furthermore , since numerous modifications and changes will readily occur to those skilled in the art , it is not desired to limit the invention to the exact construction and operation shown and described . while the preferred embodiment has been described , the details may be changed without departing from the invention , which is defined by the claims .
an improved machine and method for harvesting and processing an upstanding crop , such as celery , in situ , the machine comprising a self driven vehicle supporting a plurality of harvesting and processing units .