Elevator and method of lifting

An elevator system for raising items from a lower leveland lowering items to the lower level, comprising:

• a lift member;
• at least a first hydraulic piston cylinder device and a second hydraulic piston cylinder device, said at least two parts of said first device including at least two parts, said first device including a first part which consists of a first casing and a second part which consists of a first piston relatively movable in relation to one another, said second device including at least two parts, said at least two parts of said second device including a first part which consists of a second casing and a second part which consists of a second piston movable relative to one another;
• said first part of said first device is connected to said first part of said second device allowing fluid communication therebetween;
• said first device connected to said lift member;
• said second device connected to the lower level;
• control means for regulating the travel length of the second part of said first device and said second device respectively, said control means functions to displace the second device simultaneously with the first device when the second part of said second device moves relatively to said first part of said first device and said first part of said second device;
• said lift member is a lift platform;
• said first hydraulic piston cylinder device and said second hydraulic piston cylinder device providing a first pair of devices;
• a second pair of devices similar to said first pair, said second pair of devices including a third hydraulic piston cylinder device including at least two parts, said third hydraulic piston cylinder device including a third casing and a third piston said fourth hydraulic piston cylinder device including at least two parts, said fourth hydraulic piston cylinder device including a third casing and a third piston;
• said first casing connected to said second casing allowing fluid communication therebetween;
• said third casing connected to said fourth casing allowing fluid communication therebetween;
• said control means regulating the travel length of said first piston and said second piston simultaneously at the same rate;
• a second control means for regulating the travel length of said fourth piston and said third piston simultaneously at the same rate;
• third control means for regulating the travel length between said third case and said fourth case simultaneously at the same rate allowing said third device and said fourth device to be lowered to the same height as said first device and second device;
• said second piston and said third piston connected to allow fluid communication therebetween.

An elevator lift system, comprising:

• at least a first pair of hydraulic cylinders and a second pair of hydraulic cylinders;
• said first pair of hydraulic cylinders having a first pair of pistons;
• a first control means for regulating the travel lengths of said first pair of pistons simultaneously at the same rate;
• said first control means connected to said first pair of pistons;
• said second pair of hydraulic cylinders having a second pair of pistons;
• a second control means for regulating the travel length of said second pair of pistons simultaneously at the same rate;
• said second control means connected to said second part of pistons;
• a third control means for connecting said first pair of hydraulic cylinders to said second pair of hydraulic cylinders and for regulating the travel length of said first pair of pistons and said second pair of pistons simultaneously at the same rate, such that said second pair of hydraulic cylinders can be lowered to the same starting height as said first pair of hydraulic cylinders.

An elevator lift system, comprising:

• at least a first pair of hydraulic cylinders and a second pair of hydraulic cylinders;
• said first pair of hydraulic cylinders having a first pair of pistons;
• a first control means for regulating the travel lengths of said first pair of pistons simultaneously at the same rate;
• said second pair of hydraulic cylinders having a second pair of pistons;
• a second control means for regulating the travel length of said second pair of pistons simultaneously at the same rate;
• a third control means for connecting said first pair of hydraulic cylinders to said second pair of hydraulic cylinders and for regulating the travel length of said first pair of pistons and said second pair of pistons simultaneously at the same rate, such that said second pair of hydraulic cylinders can be lowered to the same starting height as said first pair of hydraulic cylinders;
• a third pair of hydraulic cylinders;
• said third pair of hydraulic cylinders having a third pair of pistons;
• a fourth control means for connecting said third pair of hydraulic cylinders to said second pair of hydraulic cylinders and for regulating the travel length of said third pair of pistons and said second pair of pistons simultaneously at the same rate, such that said third of hydraulic cylinders can be lowered to the same starting height as said first pair of hydraulic cylinders and said second pair of hydraulic cylinders.

An elevator system for raising items from a lower level and lowering items to the lower level, comprising:

• a lift member;
• at least a first hydraulic piston cylinder device and a second hydraulic piston cylinder device, said first device including at least two parts, said at least two parts of said first device including a first casing and a first piston relatively movable in relation to one another, said second device including at least two parts, said at least two parts of said second device including a second casing and a second piston movable relative to one another;
• at least one part of said first device is connected to at least one part of said second device allowing fluid communication therebetween;
• said first device connected to said lift member;
• said second device connected to the lower level;
• control means for regulating the travel length of the second part of said first device and said second device respectively, said control means functions to displace the second device with the first device when the second part of said second device moves relatively to said one part of said first device and said one part of said second device;
• said one part of said first device is said first casing;
• said one part of said second device is said second casing;
• said second part of said first device is said first piston;
• and
• said second part of said second device is said second piston;
• said control means for regulating the travel length of said first piston and said second piston simultaneously at the same rate, includes at least one housing having a first sprocket, a second sprocket, and a continuous chain;
• said first sprocket and said second sprocket rotatably mounted to said first hydraulic piston cylinder device and said second hydraulic piston cylinder device and connected by said continuous chain:
• said first piston and said second piston connected to said continuous chain such that said second piston moves an equal distance with respect to said first piston.