However, the lost motion means 171 becomes actuated at this point. FIG. 8 and 9. DESCRIPTION OF THE INVENTION With reference to FIGS. The vehicle may be also steered in the reverse direction by pivoting the control shaft in a generally horizontal plane without removing the control shaftl47 from one of the notches 161 in which it is located. The foregoing detailed description is given primarily for clearness of understanding and no unnecessary limitations should be understood therefrom. An amphibious all-terrain vehicle as defined in claim 1, further characterized in that: said hollow box beams are adapted to house a lubrieating oil to lubricate said chain drive system; said hollow box beams have a plurality of access openings, at least one of said openings being located adjacent to each axle shaft comprising said first and second series of drive axle shafts to provide access to said axle shafts; and a plurality of sealable cover plates each being adapted to close one of said plurality of access openings to prevent the egress of lubricating oil from said hollow box beam and ingress of contaminating material into said hollow box beam. The infinitely variable steering and transmission control means, generally denoted as 169, includes a control actuating means or joint 175 (see FIGS. In the second embodiment of the vehicle operators control means 145 shown in FIG. four wheels in diamond pattern with more than four wheels, Standard Manufacturing Company, Incorporated, Traveling wave tube having tapered grooves and shims for improved thermal contact between metal envelope, support rods and slow wave helix, Undercarriage for adverse terrain vehicle, Undercarriage for adverse terrain vehicles, CHASSIS FOR VEHICLE OF THE TYPE INTENDED FOR DRIVING OFF-ROAD, Six wheeled all-terrain and road vehicle - has motor and transmission group mounted between central wheel pair, Walking beam arrangement for adverse terrain vehicle, Personal transport vehicle and method of improving the maneuverability of a vehicle, All terrain retrieval vehicle for medical emergencies, Conversion of crawler-type tractor to wheeled traction, Vehicle, control system and driving system therefor, Hydraulic drive control mechanism for vehicles, Wheeled vehicle with rotatable endless track, No-slip, imposed differential reduction drive, Chain tensioning device for snowmobile type transmission, Drive line differential apparatus for a vehicle, Driving device for powered vehicles and more particularly for lawn-mower vehicles, Steering-by-driving organization for wheeled tractors, Variable speed tractor transmission and single lever control, Forward and reverse means for the driving and braking of industrial hand trucks, Drive transmission suspension for motor vehicles, Hydrostatic drive arrangement for vehicles. second resilient means operatively associated with said pawl biased to urge said pawl to pivot about its pivot mounting in a direction toward said ratchet teeth to assure the engagement of said pawl with said ratchet teeth thereby holding said sprocket wheel in'engagement with said chain to be tensioned against forces exerted by said chain on said sprocket wheel which would tend to cause said ratchet plate to pivot about its mounting in a direction generally away from said chain thus decreasing the force exerted on said chain by said ratchet wheel. 17. As best shown in FIGS. A movement of the ratchet plate 123 away from the chain 131 would result in a decrease in the tensioning forces exerted on the chain by the chain tensioning device, and result in excessive chain slack. Working fluid is thus prevented from circulating through the hydrostatic transmissions, and as a result hydraulic pressure is produced which prohibits the transmission output shafts 81 from rotating. FIG. 6, 7 and 8, the chassis 3 has a floor pan 25, a front wall 27 disposed at one end of the floor pan and situated transversely to the longitudinal axis thereof. 15 is a view from the side of the chassis showing a portion of the chain drive system. Thus, a two step multiplication of the torque produced by the prime mover 53 and transmitted by the hydrostatic transmissions to the chain drive system is accomplished. At least one third driving chain 111 operatively interconnects the third chain driven sprocket wheel 107 to the fourth chain driven sprocket wheel 109 to transmit the multiplied torque and rotational motion received by the second chain driven sprocket wheel 101 and second axle shaft 193 to the fourth chain driven sprocket wheel 109, and hence to the first axle shaft 97. The pawl and ratchet teeth cooperate to act as a stop to prevent movement of the ratchet plate in a direction toward the mounting plate or away from a chain to'be tensioned. Sis a side view of the power package mounting bracket shown in FIG. FIG. Amphibious Xtreme Terrain Vehicle. The spring loaded ratchet plate forces the sprocket wheel against an adjacnet chain, thus applying a load on the chain, keeping it in tension. Polaris makes a range of outdoor engine equipped vehicles such as quads, snowmobiles and amphibious all-terrain rigs. Attesting Oificer F ORM PO-IOSO (O-69) It is certified that error appears in the above-identified patent hereby corrected as vshown below: Patent No. 21. A resilient means 189 connected to both the first and second control rod levers 181, is biased to produce a force which tends to resist movement of the first control rod lever 181 in a counter-clockwise direction and the second control rod lever 185 in a clockwise direction as viewed in FIG. Radio: 2.4GHz small transmitter. 1-3. ' 2. In the preferred embodiment, best illustrated in FIGS. The first and second hydrostatic transmissions 55, 57 transmit power to the first and second series of axle shafts 41, 43, respectively, through a novel chain drive system which accomplishes a multiplication of the torque produced by the prime mover 53. 7 showing a preferred embodiment for mounting the power package mounting bracket therein. Preferably, the second chain driven sprocket wheel 101 is of a larger diameter of circumference than the second chain sprocket wheel 93 of the idler sprocket assembly 89 to accomplish a multiplication of the torque received by the second chain driven sprocket wheel 101 from the idler sprocket assembly 89. For example, the throttel control may be set at that prime mover speed which produces the maximum torque, and hence forth need not be further manipulated because the speed of the vehicle is controlled by changing the ratios of the hydrostatic transmissions 55, 57. Packs the off-road ability of. into engagement with the ratchet teeth 127 of the ratchet plate 123. 12 and 13) is operatively associated with the chains-of the chain drive system to prevent a chain from disengaging from its associated sprocket wheels by maintaining proper chain tensioning during normal straight ahead operation and/or upon a sudden reversal in the driection of the forces being transmitted by the chain as happens when, for example, the hydrostatic transmissions ratios are changed from a forward direction ratio to a rearward, or reverse direction ratio. Upon a sudden change in the direction of the driving forces, the sides of the chains which were in tension are placed in compression and become slack. As is best shown in FIG. 10. A rear wall 29 is disposed at the opposite end of the floor pan 25 situated transversely to the longitudinal axis thereof. And not just during rescue operations, scientific . 17-19 & 21-22) which is pivotally mounted to the chassis 3 for motion in two planes generally perpendicular to each other, one plane being substantially parallel to a vertical plane along a longitudinal axis of the-vehicle, and the other plane substantially parallel to a horizontal plane through the longitudinal axis of the vehicle. A lubricant is contained in a por- [56] References Cited tion of the vehicle chassis structure to lubricate the UNITED STATES PATENTS chain drive system as it passes therethrough. a second control rod pivotally mounted at one of its ends to an end of said second control lever opposite said end of said second lever which is pivotally mounted to said control actuating joint and pivotally mounted at its opposite end to a ratio selector device of said second transmission. 1973 change ".logintudinal" to change "adjacne t" to change "Preferrably" to "of" to---or-. The console 151 has an elongated slot 159 which is situated substantially parallel to the longitudinal direction of the chassis 3 and is adapted to slideably receive the vehicle operators control shaft 147. Maintenance and cleaning of waterways, lakes, shorelines, ponds, etc. 5. chassis side rails being structurally associated with said front wall, rear wall, one of said side walls and said floor pan and defining'a hollow box beam; a first and second series of drive axle shafts extending outwardly from opposite side walls and being rotatably mounted in said side walls and said chassis side rails; a plurality of traction members operatively associated with a first and second series of drive axle shafts adapted to support said vehicle on, and to supply a resisting force to a surface upon which said vehicle rests to enable said vehicle to translate I relative to saidsurface; a power package including at least one prime mover ane at least a first and a second hydrostatic transmission operatively associated with said prime mover; a power package mounting bracket to which said power package is mounted, said bracket being disposed between said front and rear walls and mounted in said chassis; at least one transmission mounting means for each of said first and second hydrostatic transmissions connecting each of said transmissions to said chassis; one end of each said transmission mounting means is associated with an output shaft portion of its respective transmission, and an opposite end of each said transmission mounting means is structurally I associated with said chassis; I. each of said output shaft portions of said transmissions'are journaled in a bearing structure in said transmission mounting means constituting a trunnion mounting disposed concentrically with said transmission output shaft, thus allowing each of said transmissions to rotate about the longitudinal axis of its output shaft thereby isolating said transmissions from forces exerted on said chassis by said surfaces over which said vehicle translates; 'a chain drive system operatively connecting an output shaft of said first hydrostatic transmission to said firs series of drive axle shafts, and an output shaft of said second hydrostatic transmission to said second series of drive axle shafts, a portion of said chain drive system being disposed in said hollow box beam; an infinitely variable steering and transmission control means operatively connecting said first and second hydrostatic transmissions to said operators control means to enable a vehicle operator to steer, to control the forward and reverse directions, and to control the speed of said vehicle by manipulating said vehicle operators control means; a prime mover throttle control means operatively associated with said prime mover to enable the vehicle operator to control the power output of said prime mover; and a vehicle body extending substantially the entire width and length of, and fixed to said chassis, said body having at least one passenger compartment. At least one first chain driving sprocket wheel 87 is affixed to the output shaft 81 of the first hydrostatic transmission 55 to rotate therewith. 8. FIG. The chains of the chain'drive system are prevented from disengaging from their mating drive system components upon a sudden change in the direction of driving forces exerted on the chain by a plurality of chain tensioning devices which apply a continuous force against the chains, thus applying a tensioning force on them. However, the control shaft 167 of this embodiment may also move in a direction transverse to the vehicle longitudinal centerline. 9 is a front sectional view of the chassis also taken along line 8-8 of FIG. as the second axle shaft 103. To turn the vehicle while it is moving forward at less than maximum speed, for example to make a right hand turn, the vehicle operator grasps the control handle 149, and without removing it from one of the notches 161 in which it may be located at the time, turns it in a clockwise direction, thus pivoting it in a plane substantially parallel to the horizontal plane through the longitudinal axis of the vehicle. "spalsh" to -splash--. four wheels in diamond pattern, Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. Drive Mode: 4 Wheel Drive. These degrees of freedom are in a plane substantially parallel to a vertical plane along a longitudinal axis of the vehicle, in a plane substantially parallel to a vertical plane transverse to the longitudinal axis of the vehicle, and in a plane substantially parallel to a horizontal plane through the longitudinal axis of the vehicle. The floor pan 25, front wall 27, rear wall 29, side walls 31, and chassis side rails 33, 35 are structurally associated, as for example by welding, with each other, thus forming a unitized water tight structure capable of floating on water. Description of Prior Art The prior art amphibious all-terrain vehicles experience a number of drive system problems such as short chain drive system life due to a lack of lubrication, drive chains disengaging from their mating drive system components upon a sudden change in direction of the driving forces applied to the drive system by the transmissions, inadequate driving torque due to low, or no multiplication of the engine torque as it is transmitted to the drive system from the transmissions, and failure of the engine and transmissions due to rigidly mounting them to the vehicle, thus subjecting them to the forces exerted on the vehicle as it translates over undulating terrain. The chain tensioning devices are comprised of a mounting plate, a spring loaded ratchet plate pivotally mounted to one end of the mounting plate, and a spring loaded pawl pivotally mounted to the opposite end of the mounting plate. 19 is a vertical sectional view of an alternate embodiment of the vehicle operators control shaft. 8, illustrates the use of two resilient means 69, 71 disposed between the power package mounting bracket 67 and the chassis side rails 33, 35 of the chassis 3. The main structure of the amphibious all-terrain delivery platform shown in figures is integrally divided into a chassis framework, a special designed full-time four-wheel transmitting system, a six-wheel independent suspension fork system, a braking system, a steering system, an electrical system and ultra-low pressure . Attachable optionally to the pontoon hull (2) are earth-moving, wetland-clearing, wetland-farming, snow-moving . A power package generally denoted as 53 (see FIGS. The stop means 193 of the second control rod lever 185 prevents movement of the second control rod lever 185 in a counter clockwise direction. 1. 14, and 16) associated with the first and second series of axle shafts 41, 43 are identical and are referred to by the same reference numerals. To select forward transmission ratios the vehicle operator grasps the control handle 149 and moves the vehicle control shaft 147 forward, toward the front of the vehicle through the plane parallel to the vertical plane along the longitudinal axis of the vehicle until the desired forward speed is obtained. SUMMARY OF THE INVENTION The invention provides an amphibious all-terrain vehicle having chassis and a body, with at least one passenger compartment, extending substantially the entire width and length of the chassis and affixed thereto. dog playpen with waterproof bottom . Other possible methods of mounting will be obvious to persons skilled in the art upon reading this specification, and are within the scope of the present invention. 2. An amphibious all-terrain vehicle which is capable of translating over and through essentially all forms of terrain and substantially any environment. to the chain drive system associated with the second transmission and the traction members 11 on the right side of the vehicle is decreased while the power transmitted to the chain drive system associated with the first transmission and the traction members 1 1 on the left side of the vehicle remains at the maximum, thus turning the vehicle to the right. September 11, 2022 . 10. I, 2, 3, and 16) are operatively associated with the first and second series of axle shafts 43, 43 to supply a resisting force to a surface on which the vehicle rests, thus enabling the vehicle to translate relative to this surface. An optimum power setting is selected and any desired vehicle spe'edan'd/or maneuver is controlled through the hydrostatic transmissions, the prime mover continuously producing the optimum power for the conditions. A plurality of traction members, such as wheels or tracks, are operatively associated with these first and second series of drive axle shafts to support the vehicle on, and to enable it to translate relative to a surface.
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