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Monorail police patrol vehicle

  • US 4,274,335 A
  • Filed: 09/05/1979
  • Issued: 06/23/1981
  • Est. Priority Date: 08/26/1977
  • Status: Expired due to Term
First Claim
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1. Apparatus for transporting people rapidly either along a ground surface or elevated therefrom, comprising:

  • a monorail,a motorized carriage mounted on the monorail for movement therealong,said carriage having front and rear sets of rail engaging wheels spaced horizontally from one another, and chassis means extending along the rail to connect said front and rear sets of wheels together,a gondola disposed below said motorized carriage, said gondola having forward and aft ends and at least one wheel affording movement of the gondola along the ground,means for raising and lowering said gondola even while said carriage is in motion, including, an elongated fixed-length boom pivotally connected at one end to said chassis and having a free end, an hydraulic cylinder connected to said chassis and said boom adjacent said boom pivot connection for pivoting said boom from a retracted position disposed along the underside of said carriage to an extended position depending substantially vertically downward therefrom, and cooperating link and hydraulic cylinder means carried by the free end of said boom and operatively connected to the aft end of said gondola for raising and lowering the gondola as the boom pivots,means carried in said gondola for controlling said hydraulic cylinders, andcooperating latch means mounted atop the gondola and depending from the boom for mechanically securing the gondola in its uppermost elevated position, said latch means including a hook depending from said boom adjacent its pivot connection to said chassis and a latch member projecting upwardly from said gondola a spaced distance from the aft end of the gondola, said hook and latch member being shaped to interengage one another when the gondola is in its uppermost elevated position to restrain pivotal movement of the gondola about its aft end and to restrain said gondola from relative movement lengthwise of the boom.

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