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2. Sash window - Wikipedia

   en.wikipedia.org/wiki/Sash_window

   The sash weight is connected to the window by a braided cotton sash cord, or a chain, that runs over a pulley at the top of the frame, although spring balances are sometimes used. Repairing a broken cord requires disassembling parts of the window frame.

3. Balanced-arm lamp - Wikipedia

   en.wikipedia.org/wiki/Balanced-arm_lamp

   There are different methods to balance the arms and the lamp-cap: coil springs In some cases a set of two coil springs working in parallel on both sides of the pivoting arm is used. (They function in the same way as a single spring.) counterweight(s) (a method frequently used in Sash windows and drawing boards). Friction between parts of the ...

4. Window - Wikipedia

   en.wikipedia.org/wiki/Window

   A window is an opening in a wall, door, roof, or vehicle that allows the exchange of light and may also allow the passage of sound and sometimes air.Modern windows are usually glazed or covered in some other transparent or translucent material, a sash set in a frame [1] in the opening; the sash and frame are also referred to as a window. [2]

5. Spring scale - Wikipedia

   en.wikipedia.org/wiki/Spring_scale

   A spring scale, spring balance or newton meter is a type of mechanical force gauge or weighing scale. It consists of a spring fixed at one end with a hook to attach an object at the other. [ 1 ] It works in accordance with Hooke's Law , which states that the force needed to extend or compress a spring by some distance scales linearly with ...

6. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

7. Casement stay - Wikipedia

   en.wikipedia.org/wiki/Casement_stay

   The peg type casement stay has one or two pins or pegs inside the rebate. The stay is a metal bar with holes that fit onto the peg, and allow the sash window to be held open in various positions. The peg nearest the hinge can then be used as a fulcrum. Disadvantages of peg type stays are that the stay handle may protrude dangerously into the room.