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US 4,365,129 AGranted
Modular section insulator switch
AssigneeThe Elreco Corporation
InventorKimball K. McKee
Life of this patent
Estimating the term…
Abstract
A modular section insulator switch having a unique base on which two feeder cable assemblies and at least two trolley line assemblies may be provided in combination with a switch assembly. In use, different sized feeder cable assemblies and switch assemblies may be interchanged quickly while the switch is in-line to accommodate higher amperage feeder cables because of the unique base.
Claims12
A trolley wire section insulator switch, said switch comprising
- a base,
- left hand, center and right hand trolley runners connected to said base, said center runner being spaced from both said left and right hand trolley runners, each of said left and right hand trolley runners comprising jaws adapted to receive an electrically conductive trolley wire in mounted relation therewith, and
- an electrically non-conductive trolley wire section mounted in said center trolley runner, said electrically non-conductive wire section serving as a support for a vehicle's trolley to ride against as said vehicle's trolley traverses said switch from said left hand trolley runner to said right hand trolley runner, and said electrically non-conductive trolley wire section being of a length sufficient to substantially span the gap between the respective inner ends of said left and right hand trolley runners, thereby providing an electrically non-conductive support for a vehicle's trolley across said gap for minimizing arcing between said switch and said trolley as said trolley traverses said switch.
A modular section insulator switch for a trolley wire system, said switch being adaptable for use with a maximum amperage capacity system as well as with a minimum amperage capacity system, said switch comprising
- at least one of (a) a switch assembly having left and right hand mounting brackets, (b) left hand and right hand trolley wire assemblies, and (c) left hand and right hand feeder cable assembles, the amperage capacity of at least one of said switch assembly and said feeder cable assemblies being sized relative to the length of said trolley wire system so that change of at least one of said assemblies is required when it is desired to increase or decrease the amperage capacity of said switch,
- an electrically non-conductive body that defines a longitudinal phantom plane therethrough and a lateral phantom plane therethrough, said body having opposed side faces generally parallel to said longitudinal plane and opposed end faces generally parallel to said lateral plane, said phantom planes being generally normal one to the other,
- left hand and right hand electrically conductive U-shaped yokes received in spaced relation one from the other in seated position on said body, each yoke having first and second side legs, and a base leg, said first side leg being positioned generally flush against one side face of said body, said second side leg being positioned generally flush against the other side face of said body, and both of said U-shaped yokes being sized for use at said maximum amperage capacity,
- said switch assembly's left hand bracket being mountable on and demountable from said first leg of said left hand yoke and said switch assembly's right hand bracket being mountable on and demountable from said first leg of said right hand yoke, said left hand feeder cable assembly being mountable on and demountable from said second leg of said left hand yoke and said right hand feeder cable assembly being mountable on and demountable from said second leg of said right hand yoke, and said left hand trolley line assembly being mountable on and demountable from said base leg of said left hand yoke and said right hand trolley line assembly being mountable on and demountable from said base leg of said right hand yoke, and
- at least one of
- at least one transverse through bolt associated with each of said yokes, said left hand transverse through bolt extending generally parallel to said lateral plane through said body for connecting and disconnecting at least one of said switch assembly's left bracket and said left hand feeder cable assembly to said left hand yoke, and said right hand transverse through bolt extending generally parallel to said lateral plane through said body for connecting and disconnecting at least one of said switch assembly's right bracket and said right hand feeder cable assembly to said right hand yoke, the length of said through bolts being such as to mount both said switch assembly and said feeder cable assemblies to said yokes to permit easy addition or removal of those assemblies on said U-shaped brackets when a change in the amperage capacity of said switch is desired by a user, and
- at least one longitudinally through bolt associated with each of said yokes, said left hand longitudinal through bolt extending generally parallel to said longitudinal plane through said body for connecting and disconnecting said left hand trolley line assembly to the base leg of said left hand yoke, and said right hand longitudinal through bolt extending generally parallel to said longitudinal plane through said body for connecting and disconnecting said right hand trolley line assembly to the base leg of said right hand yoke.
4 more elements
Dependencies are inferred from the claim text.