Elevator

An elevator comprising:

• a first upright U-channel guide rail parallel to and opposing a second upright U-channel guide rail;
• a slider comprising a first side and an opposing second side, wherein a first wheel is attached to the first side and a second wheel is attached to the second side, and wherein the first wheel rolls up and down within the first guide rail, and the second wheel rolls up and down within the second guide rail;
• a platform extending from the slider;
• a hoist mechanism;
• a centrifugal brake system;
• and
• a closed loop lifting cable attached to the slider;
• wherein the hoist mechanism is configured to move the lifting cable and thereby, in cooperation with pulleys, lift and lower the platform.

An elevator comprising:

• a first upright U-channel guide rail parallel to and opposing a second upright U-channel guide rail;
• a slider comprising a first side and an opposing second side, wherein a first wheel and a third wheel are attached to the first side and a second wheel and a fourth wheel are attached to the second side, and wherein the first wheel and third wheel roll up and down within the first guide rail, and the second wheel and fourth wheel roll up and down within the second guide rail;
• a platform extending from the slider;
• a hoist mechanism;
• a centrifugal brake system;
• and
• a closed loop lifting cable attached to a top of the slider, running through the hoist mechanism, around one pulley, down through the slider, around another pulley, and attached to a bottom side of the slider;
• wherein the hoist mechanism is configured to move the lifting cable and thereby, in cooperation with pulleys, to lift and lower the platform.