. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. gitudinal section of the improved buffing apparatus ; n « is a tube com[)06ed of two parts joined together by means of bolts in the ordinary manner; i> h is also a tube made to slide within the tube a a, perfectly air tight, by means of packing this latter tube is divided into two compartments c and d by means of a diaphrigm c. Within the tube c there is a piston/, the rod of which passes through a stuffing box at g and is permanently fixed to the extreme end of the tube a
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. gitudinal section of the improved buffing apparatus ; n « is a tube com[)06ed of two parts joined together by means of bolts in the ordinary manner; i> h is also a tube made to slide within the tube a a, perfectly air tight, by means of packing this latter tube is divided into two compartments c and d by means of a diaphrigm c. Within the tube c there is a piston/, the rod of which passes through a stuffing box at g and is permanently fixed to the extreme end of the tube a, which portion of the tube ii filled with compressed air: the compartment c of the tube i 4 is filled with water, and the compartment d filled or blocked up with wood. The action of the apparatus is a> follows : Suppose the end of the tube to be struck at h by any other body coming against it, the effect would be to drive the tube b further into the tube a, and thereby bring into action the " two elastic forces, namely, the water and air," that is to say, the end g of the tube b will meet with the resistance of the compressed air, and the piston/ with that of the water, which is allowed to pass through a number of smaU holes drilled through the piston, the siie and numberofwhich may be varied according to circumstances. Tlie inventor claims generally the hydro pneumatic butler, and the described method by which it is applied on any variation of ils construction or application what- ever. IMPROVEMENT ON DYEING. Louis Josei-ii M'allerano, of Basing Lane, merchant, "for Improvements in dyeing or staining various kinds of fohiics.''—(Communication.) Granted Dec. 30, 1844 ; Enrolled June 30, 1845. This invention is said to consist in giving shaded stripes of colour for woollen, cotton, silk, and other fabrics, by the employment of a peculiar ar- rangement of machinery which produces the 'effect in a more expeditious, economical, and perfect manner than by the o
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