Wilson's quarter century in photography : a collection of hints on practical photography which form a complete text-book of the art . 2 2 FT. which are bolted at the bolsters are 2x6, the other three are 2 x 4. Next putin cross braces, made of one-inch boards, ripped two inches wide. The floor is Fig. 104 will show this arrangement—cross section. H is the rear wall; h a woodencovering for the roof; r r^^^ are the frames which move in the guides as shown in and 102. Each frame has two small hooks, x x x, etc. The frames are movedby cords, which at H and V pass over rollers, and which a
Wilson's quarter century in photography : a collection of hints on practical photography which form a complete text-book of the art . 2 2 FT. which are bolted at the bolsters are 2x6, the other three are 2 x 4. Next putin cross braces, made of one-inch boards, ripped two inches wide. The floor is Fig. 104 will show this arrangement—cross section. H is the rear wall; h a woodencovering for the roof; r r^^^ are the frames which move in the guides as shown in and 102. Each frame has two small hooks, x x x, etc. The frames are movedby cords, which at H and V pass over rollers, and which at V are fastened to thefirst frame. In admitting light, will move backward; first the hook x^ will catch thecorresponding hook x^^ of frame r^, and take the second frame along, and so all the Fig. V frames will be caught in succession. Friction is partially overcome by strips of wood,h, Fig. 101, which are covered with plumbago, and placed under the frames; so also arethe hooks F, Fig. 101, covered with felt to avoid jarring. The movement of the frames is easy and certain, and the exclusion of the lightcomplete. The side light is regulated in a similar manner.—Dfi. H. W. Vogel. GLASS-HOUSE CONSTRUCTION. 99 then laid. Next put up a frame, made of the same stuff, like the the strijis cross they are halved, and a screw put in. They are alsoscrewed at the top and bottom. The roof is bowed with a pitch of 8 frame is then covered with a felt-paper and half-inch sliding running upand down, and matched. Where the boards cross the frame there are twoscrews in each crossing. The car is smooth on the outside, which gives abetter chance for fancy painting. The roof is covered with half-inch stuff;then a layer of tarred felt-paper, then a layer of half-inch stuff
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License: Licensed
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Keywords: ., bookcentury1800, bookdecade1880, bookidwilsonsquart, bookyear1887
