THE

REPERTORY

OF

ARTS, MANUFACTURES,

AND

AGRICULTURE.

Consisting of

ORIGINAL COMMUNICATIONS,

SPECIFICATIONS OF PATENT INVENTIONS,

PRACTICAL AND INTERESTING PAPERS,

SELECTED FROM

THE PHILOSOPHICAL TRANSACTIONS AND
SCIENTIFIC JOURNALS OF ALL NATIONS.

MONTHLY INTELLIGENCE

RELATING TO

THE USEFUL ARTS,

PROCEEDINGS OF LEARNED SOCIETIES,

AND

NOTICES OF ALL PATENTS GRANTED FOR INVENTIONS.

VOLUME XVI.-SECOND SERIES.

London:

PRINTED FOR THE PROPRIETORS;

AND SOLD BY W. HWYATT, AT THE
REPERTORY AND PATENT OFFICE, 9, PICKETT STREET,
TEMPLE-BAR,

Mr. HAMILTON's for a new Method of preparing Soda, and other

mineral Waters; spirituous, acetous, saccharine, and aroma-

tic Liqueres; and sundry Improvements relative thereto,

Mr. MEAD's for a Method or Methods of making and construct-

ing circular or rotative Steam-Engines upon an entire new

Principle, and employing the elastic or expansive Force of

Steam in a much more efficacious and advantageous Manner

than has hitherto been done,

-

Messrs. TREVETHICK and DICKINSON'S for a new Method or

Way of stowing Cargoes of Ships by Means of Packages for

containing Goods and Products of certain Descriptions, des-

tined for Conveyance by Sea, not hitherto employed,

Mr. FÖLSCH's for several Improvements on certain Machines,

Instruments, and Pens, calculated to promote Facility in

Writing,

Mr. DAVENPORT's for a Method of ornamenting all Kinds of

Glass in Imitation of Engraving or Etching, by Means of

which Borders, Cyphers, Coats of Arms, Drawings, and the

most elaborate Designs may be executed in a Style of Ele

gance hitherto unknown, and which cannot possibly be

equalled by the usual and customary Mode of Etching or

Engraving as hitherto practised,

Mr. BRADBURY'S for a Method of spinning Cotton, Flax, and

Wool,

a 2

Mr. MANLEY'S for a Plough,

Mr. BARTON's for a Lamp of a new Construction, acting upon

the natural unerring Principle of the Difference of Gra-

vity between two Fluids, which produces a constant Supply

of Oil or other combustible Fluid to feed the Wick or Burner

thereof, founting in a perpendicular Direction from a Reser-

voir beneath the Frame, having the Quality of burning or

consuming the Whole of the Oil or other combustible Fluid

applied thereto,

Mr. HUTTON's for a Method of making Sickles and Reaping

Hooks,

-

-

Mr. DUFF's for Snuffers on a new and improved Construction,

Mr. RANDOLPH's for certain Improvements in the Construction

of Wheel Carriages of every Description,

Mr. DUMBELL'S for a Method or Methods of Flax-spinning, and

of preparing or making a Species of Twist, Thread, Furniture,

Cloth, Trills, or Attire, which he calls Telary Teguments,

from Silk, Wool, Cotton, Flax, Hemp, or Tow, as well as

from a very great Variety of other Articles, in a combined or

uncombined State; and for a Method or Methods of re-fabri-

cating or renovating the same, and of producing or repro-

ducing from Tatters in general a new Body,

Page

129

131

145

147

193

208

Mr. BARRON'S for Improvements in the Apparatus used for

Rollers for Window-blinds, Maps, and other similar Objects, 211

Mr. Pocock's for Geographical Slates for the Construction of

Maps,

213

Mr. JONES's for certain Improvements in the manufacturing

Skelps for Fire Arms,

215

Mr. MANTON'S for an improved Lock for Guns and Pistols,

Mr. BRUNEL's for a new Mode of cutting Veneers or thin Boards

by Machinery, -

217

257

Mr. WHITE's for the Discovery of a certain Substance, which

is capable of being converted into Statues, artificial Stone,

Melting-pots, Bricks, Tiles, Baker's Pans, Chimney-pots,

Garden-pots, and every Description of Pottery,

260

Mr. ARCHBOLD's for a Method of converting Salt or Sea-water

Cinto Fresh-water, both on Land and on board of Ship at Sea, 262

M. DE ROCHE's for certain Improvements in the Processes of

Brewing,

C

--

264

Mr.

Mr. DE HEINE's far Improvements on Printing and Stamping
Presses, IT M

Mr. VALENTINE's for a new Mode of ornamenting and painting
all Kinds of japanned and varnished Wares of Metal, Paper,
or any other Composition, and various other Articles,'
Mr. MANTON's for improved Time-keepers,

Page

Mr. WARBURTON's for a new Method of decorating China, Porce-
lain, Earthenware, and Glass, with native, pure, or adul-'
terated Gold, Silver, Platina, or other Metals, or fluxed or
lowered with Lead, or any other Substance; which Invention
or new Method leaves the Metals after being burned in their
Metallic State,

321

323

327

331

Original Communications.

Observations on Mr. MEAD's Patent for a Method or Methods

"of making and constructing circular or rotative Steam-En-

gines upon an entire new Principle. Communicated by the

Patentee,

Account of a Method of driving or forcing forwards Ships or
other Vessels by the Power of Steam-Engines. By Mr. LIN-
AKER, Master Millwright of Portsmouth Dock-yard,

8

334

Papers selected from the Transactions of Philosophical Societies, &c.

Description of an improved Telegraph. By Major CHARLES LE

HARDY,

- Method of dividing Astronomical and other Instruments by ocu-

lar Inspection; in which the usual Tools for graduating are

not employed; the whole Operation being so contrived, that

no Error can occur but what is chargeable to Vision, when

assisted by the best optical Means of viewing and measuring

minute Quantities. By Mr. EDWARD TROUGHTON,

Description of a reflective Goniometer. By WILLIAM HYDE

WOLLASTON, M. D. Sec. R. S.

11

14. 77

Chemical Analysis of a Black Sand from the River Dee in Aber-

deenshire; and of a Copper Ore, from Arthrey in Stirling-

shire. By THOMAS THOMPSON, M. D.

95

100

Improvements