The Civil engineer and architect's journal, scientific and railway gazette . onsiderable sum was expended in repairing andmaking good as it then existed. So much for the history of the cathedral. A very few words will describeits condition when the present restorations were commenced. REGISTBR OP KEW PATENTS. PRESERVING AND COLOURING WOOD. Francois Augustin Renakd, of 40, Rue du Rocher, Paris, mer-chant, for Improvements in preserving and colouring wood.—Granted August 19, 1847 ; Enrolled February 19, 1848. This invention consists in a mode of construetino; apparatus inwhich a vacuum can be pr
The Civil engineer and architect's journal, scientific and railway gazette . onsiderable sum was expended in repairing andmaking good as it then existed. So much for the history of the cathedral. A very few words will describeits condition when the present restorations were commenced. REGISTBR OP KEW PATENTS. PRESERVING AND COLOURING WOOD. Francois Augustin Renakd, of 40, Rue du Rocher, Paris, mer-chant, for Improvements in preserving and colouring wood.—Granted August 19, 1847 ; Enrolled February 19, 1848. This invention consists in a mode of construetino; apparatus inwhich a vacuum can be produced, after the same has been appliedto one end of a log of wood; so that a preserving or colouringliquid, contained in a suitable vessel or receptacle at the otherend, will be caused, by atmospheric pressure, to pass thro ugh thelog in the longitudinal direction of the fibres. The engraving is a side elevation of the apparatus em-ployed. A is a metal cylinder, provided with a top-piece u, fromwhich is suspended a rod, with a piece of perforated metal or wire. gauze attached to its lower end. c is a metal disc, fixed to thecylinder a, having an opening at its centre, communicating withthe interior of the cylinder ; and between this disc and tlie end ofthe log of wood d, a narrow leather washer e, is interposed, so thatthere will be a small space left between the log and the disc. Theposition of the log upon the frame l, is to be adjusted by the chainand the screw g ; f is a collar, placed around the log of wood, hav-ing a chain attached to it, and by which the wood may be movedto and fro, as required, upon the frame l, by means of the screw g :in turning the screw, by means of the lever, the chain will act uponthe collar f, either to bring the block nearer or remove it fartheraway, as may be required. The other end of the log is enclosedin a bag h, of impermeable material, which is connected to thecock of a vessel i, containing the preserving or colouring
Size: 2813px × 888px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectarchitecture, booksubjectscience
