Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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Evered and Co Ltd
Original Assignee
Evered and Co Ltd
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Application filed by Evered and Co LtdfiledCriticalEvered and Co Ltd
Application grantedgrantedCritical
Publication of GB190614140ApublicationCriticalpatent/GB190614140A/en
14,140. Evered & Co., and Evered, S. June 20. Window opening and closing apparatus.-Worm gear on the sash or fixed frame, and driven by a cord pulley, is connected to a fixed o r movable part of the window by a chain passing over a sprocket e on the worm-wheel spindle c. The chain is attached to the opening apparatus, and when the latter is fixed in space, the terminal links of the chain may be rigid.
GB190614140D1906-06-201906-06-20Improvements in Fanlight Openers and other like Openers.
ExpiredGB190614140A
(en)