THE LONDON JOURNAL OF Arts and Sciences; AND REPERTORY OF PATENT INVENTIONS. CONDUCTED BY Mr. W. NEWTON, OF THE OFFICE FOR PATENTS, CHANCERY LANE. (Assisted by several Scientific Gentlemen.) VOL. XXI. (CONJOINED SERIES.) LONDON: PUBLISHED BY W. NEWTON, AT THE OFFICE FOR PATENTS, 66, CHANCERY 1843. LIST OF PLATES IN VOL. XXI. [CONJOINED SERIES.] I. Smith and Hacking's Spinning Machinery; Reynolds' Improvements in Paving; Wood's ditto; Mortimer's ditto; Gurney's ditto; Bentall's Ploughs; and Crossfield's Improvements in Manufacturing Glass. II. Smith and Hacking's Spinning Machinery; Williams' Trusses; and Shrapnel's Corkscrew. III. Massey's Ship's Log; Hansom's Vehicles; Galloway's Steam Engine; Stothert's Ship's Hearth; and Croft's Lace Machinery. IV. Lawson's Spinning Machinery; Berry's Improvements in the Manufacture of Potash and Soda; Travis' Machinery for Preparing Cotton for Spinning; and Nuttall and Holden's Trouser-strap Fastenings. V. Defries' Gas Meters; Starkey's Percussion Caps; Mertens' Improvements in Paving; Harlow's ditto; and Poole's Improved Furnaces. VI. Henson's Improved Knitting Machinery. VII. Allarton's Machinery for Blooming Iron; Davis' Sealing wax; Mannering and Harrison's Pumps; Ratcliff's Improved Door Hinge; Berry's Lock; and Robinson's Drying Apparatus. VIII. Henshall's Improvements in Making Carpets; Rodway's Grant's Improved Horse Rake; and Haley's Lifting IX. Miller's Improvements in Calico Printing; Molineux's |