. The Artizan. gust 19th, 1868. T 2584 E. Deane—Stove and cooking apparatus 2565 J. Neumann—Generating and purifying coallighting gas 258G J. H. Atterbury—Machinery for the manufac-ture of earthenware 2587 J. Norbury and J. Sh*w—Force pumps in con-nection with hydraulic presses 2588 F. Brady—Utilizing waste sulphate of Ironsolution 2589 —Tanninfr leather 2590 W. H. Davey—Drying linen, See. 2591 J, Heaton—Rails for the permanent way ofrailways Datbd August 20th, 18^8. 2592 T. R. Shaw—Oil teBters 2593 Almond—Preparing threads of cotton,silk, wool, &c. 2594 J. Sawyer—Hanging window sa
. The Artizan. gust 19th, 1868. T 2584 E. Deane—Stove and cooking apparatus 2565 J. Neumann—Generating and purifying coallighting gas 258G J. H. Atterbury—Machinery for the manufac-ture of earthenware 2587 J. Norbury and J. Sh*w—Force pumps in con-nection with hydraulic presses 2588 F. Brady—Utilizing waste sulphate of Ironsolution 2589 —Tanninfr leather 2590 W. H. Davey—Drying linen, See. 2591 J, Heaton—Rails for the permanent way ofrailways Datbd August 20th, 18^8. 2592 T. R. Shaw—Oil teBters 2593 Almond—Preparing threads of cotton,silk, wool, &c. 2594 J. Sawyer—Hanging window sashes 2595 G. Calkin—Facilitating study of pianoforte. 2596 H. N. Waters—Feed water heaters for ttteamgenerators 2597 P. Robertson—Breaks for railwaypurposes.] 2598 A. Rollnson—Purifying coal gas 2599 H. Hughes—Sewing machines 2600 H. C. Eusell—Smelting copper j, 2601 A. V, Newton—Rotary engines. THE ARTIZAN, OCT? I 1861 Plat ARflE-^3Si\f] Dli\£) STR©KE POWER THE ABTIZAN. No. 10.—Vol. II.—Fourth Series.—Vol. XXVI. Erom the Commencement. 1st. OCTOBER, 1868. SHAW AND JUSTICES DEAD STROKE POWER HAMMER. Manufactured by W. Collier and Co., Salford, Manchester. {Illustrated by Plate 337). This peculiar looking hammer -which, like so many other useful labour-saving machines, is of American origin, was designed to meet the greatwant so often folt in engine shops, of a handy power hammer that can bedriven by a strap from a line of shafting, and at the same time be capableof varying both the strength and rapidity of the blows. The old helvo andtilt hammers are of but little use for general smith work, as the speed andstrength of blow are always uniform; they have consequently given wayeither to steam or atmospheric hammers. Both of these arrangements,however, have their disadvantages ; thus, in the case of the steam hammer,it is not always advisable to use it, from the situation being too far from asteam boiler, while the other desc
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