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Discoveries and Improvements
BEING A CONTINUATION, ON AN ENLARGED PLAN,
Repertory of Arts and Manufactures :
A WORK ORIGINALLY UNDERTAKEN IN THE YEAR 1794, AND STILL CARRIED ON WITH
USEFUL INVENTIONS OF ALL NATIONS.
ENLARGED SERIES-VOL. IV.
G. HEBERT, CHEAPSIDE.
PLATE I. Lund's Patent for Improvements in the Construction
of Compensating Balances of Chronometers.—Warlich's Patent for Improvements in the Manufacture of Fuel.
Roose's Patent for Improvements in Fire-arms, &c.
ture of Pills, &c.—Mordaunt's Patent for Improvements in
Percussion, for Signals, &c. ·
Magnetic Needles less prejudicially influenced by local
Improvements in Paving Roads, &c.
Improvements in Machinery used for Preparing and
Moulding Tiles, &c.
for Propelling Vessels.—Garrett's Patent for Improvements
in Machinery for Drilling, &c. PLATE VI. Champion and Marsden's Patent for Improve
ments in Drawing, Winding, and Spinning Cotton, &c.Mylne's Patent for Improvements in the Construction of
the Construction and Mode of Working Engines by the
the Manufacture of Gas. PLATE VIII. Masterman's Patent for a Certain Method or
Mechanism for the Speedy Cooling of Liquids, being within Certain Degrees of Temperature, and which Method or Mechanism is termed a Refrigerator.—Hinks, Wells, and Finnemore's Patent for Improvements in the Manufacture of Metallic Pens, and in Machines for Manufacturing Metallic Pens.-Shepherd's Patent for an Improved Fourport Slide Valve, and an Improved Controller for Reversing Steam-engines, and for Working the Steam expansively in
the cylinder. PLATE IX. Wollaston's Patent for Improvements in Machinery
for Cutting Marble and Stone.—Vaile's Patent for Improvements in Manufacturing Metal combined with other Matters
for the Covering of Floors and other Surfaces. . PLATE X. Newall's Patent for Certain Improvements in Wire
ropes, and in Machinery for Making such Ropes. PLATE XI. Ransome, May, Biddell, and Worby's Patent for