A teaching aid device for teaching the principles of generating a self-contained (41Ke) impulse in predetermined direction (10) within an isolated system comprising
- a frame (1);
- mounted onto
- a carriage, the carriage is configured for having freedom of longitudinal motion and having longitudinal guidance on
- a track (4);
- the said frame and carriage is configured to rotatably support
- a double lever fulcrum arm structure comprising two opposite mounted levers (7,8);
- the said double fulcrum arm comprises
- a pivot pin 6:
- the pivot pin is rotataby retained in
- a bearing block (5) mounted onto the said frame and is configured for guiding the fulcrum arm in a rotational motion in direction (20) having a horizontal axial orientation to the said track and perpendicular axial orientation to the said impulse direction;
- the said first lever has the counter weights (2A,2B) attached, configured to provide gravitational balance of the said fulcrum arm structure and configured for having sufficient inertial mass to provide a natural center line of gyration (38) location between the said pivot pin and the said counter weights for displacing the said carriage longitudinal on the said track in the said impulse direction for any rotation of the fulcrum arm structure in the direction (20);
- further comprising the second lever (8) containing
- a ballistic barrel (13) mounted onto the lever tip (12) in an orientation parallel to the impulse direction (10) for guiding the sliding motion of
- a transfer bolt (15) slidably contained in the said barrel;
- the device furthermore comprises
- a main spring (30) configured for providing the motivating energy of the rotational motion (20) of the said fulcrum arm structure including the said transfer bolt proceeding from an initial horizontal position to a vertical end position, the main spring is configured to distribute a stored energy potential between the
- center pin (29) which is containing the said counterweights onto the said first fulcrum arm and between the said frame;
- the fulcrum arm structure furthermore comprises
- an orbiting weights arm (31) rotatably disposed onto the said fulcrum arm lever (7) at a predetermined final point of gyration of the said fulcrum arm structure;
- the fulcrum arm structure further comprises
- an orbiting weights arm pull spring (33) configured for providing the said orbiting weights arm a pre determined rotational kinetic energy magnitude sufficient to counter the said rotational kinetic energy of the said fulcrum arm structure excluding the said acquired kinetic energy of the said transfer bolt in a in-elastic collision against the
- orbiting weights stopper (35) rotatably mounted onto the said second fulcrum arm (8) in a predetermined collision position aligning with the said orbiting weights arm;
- the said orbiting weight stopper is configured to be held in the retracted position with the orbiting weights return spring (36);
- the said orbiting weights stopper is further configured to be positioned to collide with the said orbiting weights by the
- pull string (18) configured for having a cam action tensioning the pull string when the said fulcrum arm reaches the said vertical position and configured to cause the said in-elastic collision for negating all the motions of the fulcrum arm structure while allowing the said transfer bolt to slidably proceed within the said ballistic barrel for transferring the said kinetic energy into
- an impulse sail (21) mounted onto the said frame, configured for capturing the kinetic energy of the said transfer bolt in an energy conserving collision, for transferring the energy as a self-contained isomorphic impulse into the entire aggregate inertial mass of the device.