REPERTORY

OF

PATENT INVENTIONS

AND OTHER

DISCOVERIES AND IMPROVEMENTS

IN

ARTS, MANUFACTURES,

AND

AGRICULTURE,

BEING A CONTINUATION, ON AN ENLARGED PLAN, OF THE

Repertory of Arts and Manufactures,

A WORK ORIGINALLY UNDERTAKEN IN THE YEAR 1794, AND STILL CARRIED ON, WITH A
VIEW TO COLLECT, RECORD, AND BRING INTO PUBLIC NOTICE,

THE USEFUL INVENTIONS OF ALL NATIONS.

VOLUME III.

LONDON:

PUBLISHED FOR THE PROPRIETORS, BY T. AND G. UNDERWOOD,

32, FLEET-STREET.

1827.

C. Baldwin, Printer, New Bridge-street, London.

BIBL

OTHER

CONTENTS

OF THE

THIRD VOLUME.

Specifications of Patents.

Mr. Magrath's, for an improved apparatus for conducting and

containing water and other fluids, and preserving the same from

the effects of frost....

Mr. Bate's, for an improvement on the frames of eye glasses..

Mr. Gamble's, for certain apparatus for the concentration and

crystallization of aluminous and other saline and crystallizable

solutions, part of which apparatus may be applied to the general

purposes of evaporation, distillation, inspissation, and desicca-

tion, and especially to the generation of steam

Mr. Barlow's, for a method or process for bleaching and cla-

rifying, and for improving the quality and colour, of sugars,

known by the name of Bastard and Piece Sugars ..

Mr. Dunn's, for an improved apparatus for the purpose of

beneficially separating the infusion of tea or coffee from the

grounds or dregs

Mr. Eve's, for an improved steam-engine.

Observations by the patentee

....

Mr. Hancock's, for a new or improved manufacture, which

may in many instances be used as a substitute for leather, and

otherwise

PAGE

Mr. Shalders's, for a gravitating expressing fountain for raising

and conveying water or any other fluid

Observations by the patentee

132

136

Mr. Fletcher's, for improvements in tanning hides and other

skins

138

Mr. Chambers's, for improvements in preparing and paving

horse and carriage ways..

140

Messrs. Gordon and Bowser's, for certain improvements in

uniting and plating, or coating iron with copper, or with any

other composition whereof copper is the principal ingredient.... 193

Observations by the patentee

204

Messrs. Martineau and Smith's, for certain improvements in

the manufacture of steel. Communicated to them by a Foreigner, 205

Mr. Evans's, for certain improvements in the apparatus for,

and process of distillation

208