A model vehicle of the steerable road racing type for confined movement along a trough type roadway or track of plural land width including a dirigible wheeled chassis carrying a drive motor, a clutch mechanism operative to drive the wheeled running gear continuously in forward direction upon actuation of the motor in opposite directions, and an operating mechanism steering the running gear in opposite directions responsive to the motor running in opposite directions for controlling vehicle move...

An anatomical model comprises a plurality of molded sections of uniform thickness, each of which has a flesh appearance on one side and on the opposite side a colored photograph of an actual body specimen with the sections being adapted for serial assembly to provide a realistic appearing sectioned body model suitable for anatomical study.

A simulated finger model having articulated simulated finger bones with cords representing the major tendons to produce flexion and extension of the finger bones in the manner of the natural hand, with interconnections between an extensor tendon and intrinsic tendons to produce the proper interrelationship therebetween; with connections between the extensor tendon and the middle phalanx with a hood interconnecting the extensor tendon and the intrinsic tendons adjacent the metacarpophalangeal joi...

A model figure representing a horse and rider and consisting basically of two pivotally interconnected parts, each of which is an integral unit, formed, for example, of moulded plastic material. In one embodiment of the invention one of the parts is constituted by the arms of the rider and the majority of the horse, apart from the shoulders and fore legs. The hind legs may be formed integrally with this part or they may be pivotally attached to it. The second part of the model in this embodiment...

A high performance type model aircraft having exceptional soaring characteristics includes a delta wing with shallow reflex at its trailing edge, a nose pod and a vertical stabilizer secured to the rear center portion of the underside of the wing. A wooden dowell is embedded in the nose pod and extended into the wing to protect the nose pod against impact and to establish the center of gravity of the aircraft. The aircraft is one piece blow molded styrofoam construction with all leading edges re...

A study model for forces supplied to teeth wherein model teeth are movably arranged in a raceway within a planar support member. A clamping feature allows model teeth to be moved into a desired position and then held in place by application of force. Orthodontic appliances can then be applied to the model teeth and the force released to study the effect of the appliances on the teeth.

A remotely powered and controlled aircraft is provided of the type wherein the propeller is driven from a remote drive unit by an elongated flexible cable confined within a flexible tube. The aircraft of the invention includes a secondary control knob slidably and rotatably mounted about the flexible tube for selectively controlling the effective length of the tube and cable to thereby control the radius of flight of the aircraft. In a preferred embodiment, the aircraft is a biplane with a uniqu...

A model submarine has an inherent "fail safe" feature, so that the submarine (if submerged) will rise to its periscope depth in the event the submarine encounters a stationary object, or in the event a power failure occurs. Power is supplied by a single submersible motor-pump unit within a free-flooding hull. The motor-pump unit supplies a pressurized water discharge for, first, forward propulsion of the submarine via the discharge nozzle of an ejector pump; and second, for hydraulic control of ...

In a jaw model, the jaw arch (2) is provided with a recess (4), which is arranged rotatably an insert part (5) carrying, on sides located opposite one another, different tooth or artificial tooth shapes (7,8) which can be moved into the particular correct position by rotating the insert part.

A model house that can be erected from a combination of parts without tools or fasteners and then easily knocked down for shipment or storage. A base member has a main cutout to receive a central vertical partition and peripheral openings to receive vertical side members that support a second floor and a folding roof. All parts are rigid members that interlock so that they cooperate together to maintain the structural arrangement of the house.