| 摘要 |
The window guard is mounted within the window frame, interiorly of the window panes. The window guard includes one pair of studs, anchored to opposite legs of the window frame, and a number of bars, interconnecting the studs through the window aperture to prevent unauthorized passage therethrough. The first stud includes transverse bores, for axial engagement by one end of the bars, while the second stud includes transverse notches, for transverse engagement by the other end of the bars. A latch bar is movably mounted inside the second stud, for releasably hooking the rods to the second stud. The latch bar is controlled by a pivotal lever, actuated by a key-operated lock barrel. The lock barrel is accessible only from the inside of the room.
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