Brown & Martin
Vent window lock assembly
 A vent window lock assembly for securing a pivotable vent window having a vertical edge at one end to a vertical window post having a wing flange against which said end of the vent window resides when the window is closed, is disclosed. The lock assembly includes an S-shaped bracket, a hook plate, and a fastener. The S-shaped bracket defines opposed first and second overlapping channels. The first channel is adapted for gripping the vertical edge of the vent window, with the end portion of the bracket that defines the first channel being for positioned on the outside of the vent window. The second channel is adapted for gripping the wing flange of the window post, with the end portion of the bracket that defines the second channel being positioned on the inside of the window post. The hook plate is slidably fastened to the end portion of the bracket that defines the second channel. One end of the hook plate extends away from the bracket and defines a hook for gripping the side of the window post opposite the wing flange. The fastener enables the hook plate to be selectively either slidably or tightly fastened to the bracket. To install the lock assembly, the vertical edge of the vent window is moved into the first channel of the bracket while the window is open and as the vent window is being closed while pivoting the end portion of the bracket defining the second channel about the window post. The bracket is secured to the window post after the window is so closed by sliding the hook plate until the hook grips the window post, and then tightly fastening the hook plate to the bracket. 
E Y Y
E05C Y10T Y10S
inventional additional additional
Mary E.
Lewis