Transport means for invalids

An invalid vehicle comprising:

• a frame with a seat;
• a driven wheel by which said frame is supported;
• a driving wheel by which said frame is also supported;
• a bearing of said frame;
• a fork of said driving wheel secured in said bearing;
• a second driving wheel;
• a hand lever mounted on said frame for swinging movement;
• said hand lever including a handle to produce turning of said first driving wheel, said handle being connected to said fork of said first driving wheel;
• bevel gears connecting said handle to said fork of said first driving wheel;
• shafts on which said bevel gears are mounted;
• a second hand lever mounted to said frame;
• said second hand lever including a handle connected to the fork of said second driving wheel;
• further bevel gears connecting the fork of said second driving wheel to said handle of said second hand lever;
• further shafts on which said further bevel gears are mounted;
• a guide in each of said forks for the respective driving wheel;
• a rod disposed in said guide and extending through said bearing of said frame;
• a rack on said rod;
• a pinion mounted on each axle of the driving wheels and engaged with a respective said rack;
• an overrunning clutch on each driving wheel engaged with said pinion, said guide, said rod and rack, said pinion and said overrunning clutch forming a transmission mechanism for converting the swinging motion of said associated hand lever into rotary motion of the associated said driving wheel;
• and
• a further clutch connecting one of said shafts to said rod;
• said driven wheel being self-orientable.