Sash planes and window making
Lately I came across two such planes, used to make the sash bars on a classic 3X2 single or double hung windows. There are a few specialised planes to make windows, the ones I found are called Adjustable Sash planes (an American invention I believed), since the space between the decorative cut and the glass rabbet is variable, adjusted by screwing or unscrewing the two part of the body apart. My two new acquisition for my herd Window sash making, the making of the glass window frame, was a specialized trade at one time. Even after the division of labour between the carpenters (framers) and the house joiners (finish carpentry, trim work) Window making quickly became a speciality... and for good reason. It demand an attention to details, the ability to craft good work precisely and specialised tools. Traditionally, before the window maker became a trade, such work was reserved for their best housewright (Finish carpenter, joiners) Some of the tools of the trade: From Top L-R CW Sash...