No Rack Lifter
Not every Lifter has a Vertical Pole Support with fulcrum support points built into it. The drawing shows a Single Pole Lifter of that type. It has all of the usual assemblies, but the pinion has been replaced by moving the ratchet pinion to the Fulcrum Support Bar. On the Fulcrum Support Bar the ratchet pinion has been changed to a ratchet gear that guides a cable/chain down to the Carriage Assembly to the Fulcrum Cable Attachment Location. Each time the Carriage Assembly is tilted one of the Fulcrum Cables is pulled up tight by a Counter Weight. The Ratchet Gear keeps the cable/chain from moving backward and a new fulcrum position is acquired. Successive tilting back and forth will result in the Carriage Assembly, rising up the Vertical Support Pole. The Lifter Upper Cross Bar is shown in this model with Rocking Cables, used for ground based input, but could be replaced with a rocking assembly which might be attached to a mechanical assembly using some other power source.
See in section, Proof of Concept - No-Rack Lifter
Additional designs show the ratchet assembly moved to the base of the Vertical Support and the counter weights replaced by attaching the fulcrum cables to a tilting assembly on the Carriage.
See in section, Proof of Concept - Tilt Assist Arm
No Rack Lifter
