Abstract: A driving structure for children's tricycle includes a cylindrical shell adapted to receive a crank case therein. The crank case is composed of an upper and a lower half cases, each is identical to the other and has a trough and two strips adapted to rest a flat plate of the crank thereon, and has a flat plate at one having a crank receiving cup extending at the opposite end.

Abstract: The rider powered vehicle has two steerable front wheels, each with a turning arm, and a single rear drive wheel. Power transmission means is provided between the rear wheel and a single push-pull and steerable handlebar mounted in a column assembly supported to oscillate about a lateral pivot axis. The handlebar is connected to a steering arm, and two steering links are connected at respective inboard and outboard pivotal connections between the steering arm and the two turning arms. Handlebar rotation causes the inboard pivotal connections to trace an arcuate path, and the lateral pivot axis is located to intersect the arcuate path generally at two spaced locations. This geometry provides a propulsion and steering mechanism that has substantially no interaction between the push-pull power strokes of the handlebar, for vehicular propulsion, and the handlebar rotation, for vehicular steering.

Abstract: A wheelchair operable with one hand including operation ring, extension arm and interlocking member. The operation ring is attached to a yoke of universal joint that is axially rotatable and installed between the operation ring and one of the driving wheels of the wheelchair. The extension arm is connected to the yoke at its base end and to the interlocking member, that is linked to one of front casters of the wheelchair, at its front end. The oscillation movement of the extension arm that is made via the operation ring and universal joint is converted into a pivotal movement of the interlocking member that changes the direction of the front caster.

Abstract: A dual drive bicycle having a steerable front wheel and a rear wheel that is driven. A foot-powered drive system includes a first rotatable shaft extending transversely to the bicycle. A rotatable drive sprocket is operatively connected to a second shaft rotatably mounted on the steering post in which the front wheel is mounted. A rotatable driven sprocket is mounted on the first shaft and is capable of rotating same for forward drive. A continuous drive chain extends about the drive sprocket and the driven sprocket. A third rotatable shaft is mounted on the steering spindle so as to pivot with the front wheel when the latter is steered. A universal joint connects the second and thrid shafts at a location above the steering shaft. A further continuous chain and cooperating sprockets together with a hand-crank are provided to rotate the third shaft.

Abstract: An arm and leg powered cycle using a linear reciprocating motion of arm and leg drive members to provide power. An elongated bicycle chassis has a forward and a rear wheel, a seat with a back rest for the operator, and lower and central support members. The arm drive member includes a rotatably mounted housing in which a plunger linearly reciprocates when an operator "rows" the plunger, using handlebars attached thereto. Pulling on the arm plunger tightens a cable attached at one end to the plunger and at the other end to a chain engaging sprocket, the sprocket being constrained to rotation in one direction by a one-way dog. The chain engaging sprocket engages a drive chain on the pulling or "drive" stroke, thereby pulling the chain through the stroke. This motion is transferred to drive the rear wheel through a series of gears and a transmission chain. Pushing on the leg drive member creates a drive stroke of the same type, also providing power to the drive chain.

Abstract: A scooter with a manual propelling system of the invention can be moved by pushing or kicking the ground as usual, operating the manual propelling sytem or combining the both methods. The scooter comprises a body or platform, a steering section attached to the body and a prpelling section. The steering section includes a front shaft rotatably attached to the body, at least one front wheel rotationally connected to a lower portion of the front shaft, and a steering rod. A middle portion of the steering rod is rotationally connected to an upper portion of the front shaft. The propelling section includes a rear wheel shaft rotationally attached to the body, rear wheels fixed to the rear wheel shaft, an engaging device connected to the rear wheel shaft, and a drive shaft connected to a lower portion of the steering rod. The drive shaft is provided with a rack engaging the engaging device.

Abstract: An exercising, recreational and utilitarian apparatus, particularly useful for persons handicapped as to use of their lower limbs or having cardio-pulmonary or ancillary physical problems, comprising a mobile chassis having forward and rearward ends referenced to the normal direction of its motion and mounting a forwardly and upwardly inclined adjustable support having thereon a body rest for mid and upper portions of the body of a user and immediately to the rear thereof an upwardly projecting vertically inclined forwardly facing seat which backs the buttocks of the user and induces the forward inclination of the mid and upper portions of the user's body. Immediately forward of said support, within easy and comfortable reach by the user's hands, is a transversely extending rod-shaped control bar which commonly mounts the controls for driving, steering and braking said apparatus in the course of its travel.

Abstract: A four wheel cycle has a seat on a pipe-formed body, two non-steerable front wheels with a foot pedal crank driving mechanism directly therebetween, and two steerable rear wheels with steering mechanism. The steering mechanism has a steering wheel on one end of a steering shaft a, steering arm across the other end of the steering shaft and a pair of steering connecting rods cross connecting the steering arm to the steerable rear wheels.

Abstract: A bicycle having conventional foot pedals with driving rotating cranks connected to a load is improved with arm pedals. Preferably, each foot pedal forms the point of attachment of a line under tension. The line from each pedal passes upwardly from the pedal to a seat sheave in the vicinity of the seat. Thereafter, the line from the pedal goes forwardly to a forward sheave mounted on the front of the bicycle frame. From the forward sheave the line runs rearward to a second seat sheave and dead ends at a point of attachment on the opposite pedal. Hand pedals are connected to the line from each pedal in that portion of the line between the seat sheave and the forward sheave. Operation of the hand pedals is synchronized with the traditional foot cycling motion of the foot pedals. Upward stroke of the foot pedals is assisted with tension in the connected running rigging from both hand pedals.

Abstract: A wheel chair including a frame, at least three wheels, a drive mechanism and a single lever control mechanism. The drive mechanism includes a prime mover mechanism and a selective engagement mechanism. The frame is supported by the wheels. The single lever control mechanism is connected to the selective engagement mechanism. The selective engagement mechanism is connected to the prime mover mechanism. The selective engagement mechanism is adapted to selectively transfer power from the prime mover mechanism into forward and reverse movement of at least one of the wheels of the wheel chair.

Abstract: A machine for utilizing muscular energy is disclosed which can be driven, through separate operating means, by movement of a user's legs and by upper body (i.e. arms and torso) movement. The movement of the legs and the upper body movement need not be synchronized, and each part of the user's body can work at the rate most suited to it.A bicycle with a driven rear wheel is a typical example of such a machine. Both of the separate operating means can be arranged to drive a common spindle so that the power applied to the spindle is greater than would be the case in a conventional bicycle where only leg power is applied in driving the machine.

Abstract: A recumbent tricycle including a frame, twin rear wheels pivotally mounted to the frame and steerable by a pair of levers pivotally mounted to the frame on either side of a passenger seat. The rear wheels are oriented substantially vertically and are attached to hubs inclined inwardly toward the frame to create a cambered effect which maintains the rear wheels in a forward-facing position as the tricycle moves in a rectilinear path. The single front wheel is preferably driven by a pedal crank assembly mounted rearwardly of the front wheel and forwardly of the passenger seat.

Abstract: A wheeled vehicle propelled by a rider comprises a frame, front and rear wheels rotatably mounted on the frame; and a tiller tube, provided with handle bars and foot pedals which may be used separately or together for providing oscillatory movement thereof about a pivotal axis of the tiller tube. The vehicle further includes cable drive means and at least one unidirectional clutch which when driven turns one or more wheels, preferably the rear wheels. The ends of the cable are rotatably anchored to a sheave mounted on the tiller tube, and means are provided for moving the sheave up and down the tube in infinitely variable increments for changing from a high-speed to a low-speed position and vice-versa so as to provide suitable speed changing. Means are also provided on said vehicle for braking and steering.

Abstract: A bicycle with a foot cranked sprocket driven rear wheel assembly and a steering arm assembly substantially pivoting about the vertical axis located substantially in coincidence or near and substantially parallel to the axis of the bicycle frame member where the seat post is inserted. At the upper leading portion of the steering arm a hand crank is provided to drive a flexible shaft at one end of it through gearing means with the other end, the shaft engaging another gear means to drive a ring gear that turns with the foot cranked sprocket. Connected at the lower lagging portion of the steering arm assembly are linking means which are also connected to the upper portion of the front fork to impart rotation of the front wheel assembly about a vertical axis so that the steerable front wheel can be steered by the steering arm assembly.

Abstract: A two-wheel man-powered vehicle having a frame, a steerable front wheel and a rear wheel, both rotatably mounted on the frame. A hand operable power lever has a lower end pivotally mounted on the frame so as to be capable of swinging back and forth in a vertical plane passing through the frame. The lever is constructed in such manner that an upper portion is capable of rotating about its own longitudinal axis. The power lever is provided with a handle at its upper end. A seat for an operator of the vehicle is mounted on the frame so as to be movable back and forth with regard thereto. A flexible transmission mechanism has one end connected to the power lever and one end connected to one of the wheels through a unidirectional drive. The front wheel is connected to the rotatable portion of the power lever by flexible connecting cables so as to be steerable upon rotation of the power lever about its longitudinal axis.

Abstract: A tricycle having both front and rear wheel drives, for hand and foot motion respectively, includes a front wheel drive assembly that is adjustable with respect to the frame of the tricycle to position a hand crank in the optimum position for almost any user. A seat assembly is also adjustable with respect to the frame, and a rear wheel drive assembly is also adjustable with respect to the frame to make the tricycle adaptable to any handicapped child or individual, to give him the maximum use of his limbs; to exercise his limbs in the best therapeutic manner; and to allow for growth and changes and improvements in this muscular coordination.

Abstract: A velocipede is provided in the form of a carriage supported by swivel wheels and having a drive or propelling wheel for engaging a support surface and propelling the velocipede along the surface. The propelling wheel has an axle secured to the lower end of a generally vertical shaft having a steering wheel at the upper end thereof so that the direction of the propelling wheel, and thus the direction in which the carriage travels, is controlled by turning the steering wheel. The steering wheel shaft and propelling wheel can be turned 360.degree. so that the velocipede can be turned to travel in any direction at any time. The velocipede is propelled by a pair of pedals on a Z shaft secured to a drive gear forming a part of the drive train for driving the propelling wheel. Gears are also provided transmitting rotational force to one end of a spool gear surrounding the steering shaft.

Abstract: A manually propelled vehicle having a main frame supported on front and rear ground engageable wheels, a support body on the frame for supporting an occupant, control means operable by the occupant and comprising an oscillating drive member mounted to pivot about an axis transverse of the vehicle, a connecting rod interconnecting the drive member to a crank mechanism formed in a support axle for the rear wheels. A handle is pivotally connected to the drive member, with a pair of bowden cables interconnecting the handle with steering linkage systems cooperating with the axles of the front wheels. The bowden cables pass through the pivot axis of the drive member. The arrangement being such that oscillation of the drive member will cause the rear wheels to be driven by the connecting rod and crank mechanism, while pivoting movement of the handle due to downward pressure applied to one side or other of the handle will facilitate steering of the front wheels via the bowden cables and steering linkage systems.

Abstract: A two wheeled, rider propelled vehicle having both wheels pivotably mounted upon a medial principal frame. The pivotable rear wheel frame supports pedal mechanism propelling the rear wheel and may be steered by the feet of the user. Mechanical biasing means communicate between the pivotable rear wheel frame and main frame to bias motion and a latching mechanism allows fixed positioning of the two members. A vertically adjustable seat is fixedly carried by the principal frame and the forward portion of the vehicle provides a traditional manually steerable, pivotably mounted front wheel frame.