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| The sliding sash window has vertical moving openers (sashes), produced as 'Double-Hung' sash windows, that is; with top and bottom openers. The sashes run in a wide channel within the window stiles which is formed by the outer lining, and the internal staff beading, which is then divided into two channels by the parting bead. A great deal of thought went into this design, which enabled everything to work perfectly. For the sliding sash window frame to be able to accommodate the weights and cords, the side of the window is hollow, made as a box section divided by the wagtail. Built into the top inside face of the pulley stile are two pulleys, over which a cord runs,and connects the sliding sashes to the weights. These weights moved down as the window moves up, and vice versa. |
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In Victorian times the sliding sash window was the norm, but it has since declined and is now rarely seen, being superseded by the modern window frame with its simple frame design and hinged opening sashes.
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The reasons for their decline is to do with the amount of work required in their manufacture, and the amount of different components needed. In addition to this, over time they would need regular maintenance to keep them working smoothly. This would mean the maintenance of the pulleys, and the renewal of the cord. Failure to do this will bring about many problems, such as worn and snapping cords, resulting in the weight dropping to the bottom of the window box cavity. The sashes can also stick making them difficult to move, and they are liableto rattle in the wind as well as being draughty. I'm happy to say that in recent times there has been a |
| revivalin this type of window, with many newly built properties installing them to reflect the Victorian style. There are also joinery manufacturers who are now producing them to the original specification, with the added features such as draught proofing. |
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