Adjustable counterweight assembly
AssigneeSweco, Incorporated
InventorsAri M. Hukki, Bradley N. Jones
Life of this patent
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Abstract
A counterweight assembly on a vertical, rotatably mounted shaft which is adjustable. First and second eccentric weight assemblies are fixed to the shaft. One of the eccentric weight assemblies includes a support fixed to the shaft to extend laterally of the shaft. The support has a ring of slots displaced laterally of the shaft. Two eccentric weights are rotatably mounted about the shaft and have pins extending to the ring of slots.
Claims13
An adjustable counterweight assembly on a vertical, rotatably mounted shaft, comprising
- a first eccentric weight assembly fixed to the shaft;
- a second eccentric weight assembly displaced from said first eccentric weight assembly along the shaft, said second eccentric weight assembly including a support fixed to the shaft to extend laterally of the shaft, said support having a ring of slots displaced laterally of the shaft, a first eccentric weight rotatably mounted about the shaft and having a first pin extending to said ring of slots, a second eccentric weight rotatably mounted about the shaft and having a second pin extending to said ring of slots.
An adjustable counterweight assembly on a vertical, rotatably mounted shaft, comprising
- a first eccentric weight assembly fixed to the shaft, said first eccentric weight assembly including an eccentrically positioned weight hanger to receive selected weights;
- a second eccentric weight assembly displaced from said first eccentric weight assembly along the shaft, said second weight assembly including a support fixed to the shaft to extend normal to the longitudinal centerline of the shaft, said support having a ring of slots displaced radially outwardly from the shaft, a first eccentric weight rotatably mounted about the shaft and having a first pin extending to said ring of slots, a second eccentric weight rotatably mounted about the shaft and having a second pin extending to said ring of slots, said first and said second eccentric weights being of equal eccentricity.
An adjustable counterweight assembly on a vertical, rotatably mounted shaft, comprising
- a first eccentric weight assembly fixed to the shaft;
- a second eccentric weight assembly displaced from said first eccentric weight assembly along the shaft, said second eccentric weight assembly including a support fixed to the shaft to extend normal to the longitudinal centerline of the shaft, said support having a ring of slots displaced radially outwardly from the shaft, a first eccentric weight rotatably mounted about the shaft and having a first pin extending to said ring of slots, a second eccentric weight rotatably mounted about the shaft and having a second pin extending to said ring of slots, said first and said second eccentric weights being fan shaped plates of equal eccentricity stacked on said support and axially slidable on the shaft.
An adjustable counterweight assembly on a vertical, rotatably mounted shaft, comprising
- a first eccentric weight assembly fixed to the shaft;
- a second eccentric weight assembly displaced from said first eccentric weight assembly along the shaft, said second eccentric weight assembly including a support fixed to the shaft to extend normal to the longitudinal centerline of the shaft, said support having a ring of slots displaced radially outwardly from the shaft and including upstanding stops defining said slots therebetween, a first eccentric weight rotatably mounted about and axially slidable on the shaft and having a first pin extending to said ring of slots, a second eccentric weight rotatably mounted about and axially slidable on the shaft and having a second pin extending to said ring of slots, said first and said second pins each extending radially outwardly of said respective first and second eccentric weights into said ring of slots.
Dependencies are inferred from the claim text.