Kingdom.] Class G.—MANUFACTURING MACHINES ANI) TOOLS.

North Areas A. B. 10 to 31 ; C. D. E. 1 to 10, & 19 to 33 ; G. II. 25, 26.

^ or S r ' n( ling malt, also oats, barley-meal, &c.b* 1 shows this m a chine.

Crosskill’s Mill for Vegetable Substances,

JUMIUUIIIUWII 1 :!!

as power-mills; their adaptation, by changing finer orcoarser plates, for grinding various mineral substances tofine dust; and, from the position of the two centres, thepeculiar eccentric motion is obtained for each of the re-volving metal plates. They consist of—mills for steam,of four-horse power, for grinding iron, zinc, copper, andgold ores, plumbago, manganese, &c.; another for grind-ing raw or calcined flints for pottery purposes, also quartz,&c.; will grind 8 to 10 cwt. of raw flints per hour by thefirst process, and by the second process reduce 12 to15 cwt. per hour to the finest powder. Fig. 2 shows thismachine.

Mill for steam, of two-horse power, for grinding paintsor liquid substances.

Mill for hand or power, for grinding paint or liquidsubstances. With this mill a boy will grind from j to1 cwt. per hour.

Improved portable and fixture steam-engines for manu-facturing or agricultural purposes.

405 Rotch & Finzel, 2 Furnival’s Inn —

Inventors.

Centrifugal machine for separating molasses from sugar.Manlove and Alliott, manufacturers.

406 Birch, John, Edward Street, Regent’s Park —Inventor.

Model of a machine designed and used for the purposeof cutting sash and roof bars, and applicable to the pre-paration of mouldings, &c. It is so contrived as simul-taneously to work the two sides of the bars or mouldings.The cutter blocks are so contrived as to work seven barsat the same time.

c oivf ( !j,c ^ or power or hand use, for grocers, druggists,

petitioners, & c .

ticuij« ra ills for grinding mineral substances. The par-‘eatures in these mills consist in their strength

Fig. 2.

mm

f'osskill's Mill for Mineral Substances.

407 Maidlow, John, 24 Queen’s Terrace, St. John’sWood —Inventor.

Improvement in carpenters’ bench screw, cheek, andstop, having two screws to the cheek, both acting at thesame time with one lever, causing the cheek to workparallel, and have equal pressure at both ends; adaptedfor joiners, cabinet-makers, bookbinders, &e. The stopis so arranged that, by turning a screw which is letinto the top of the bench it will rise to any height re-quired.

[The bench-screw is to the joiner and cabinet-makerwhat the vice is to the smith,—the moveable block orcheek, and the bed block which is fixed in and to thebench, and which contains the matrix of the screw, form-ing the jaws of such vice. That the cheek should pressupon the body to be held equably is highly important tothe ease of the workman and to the strength of the work ;and any arrangement that tends to secure the parallelmovement and even binding of the cheek, up to and uponthe side of the bench which covers the bed block, thecounterpart of the cheek, is worthy of consideration.

The “ stop ” is an end-grained block of wood passingthrough the top of the bench, and capable of being madeto stand more or less above the surface of the piece ofstuff to be tryed up or otherwise planed, and to resistpressure; the use of the stop being to hold the work upto the plane as the workman pursues the operation ofplaning.—W. H.]

408 Dakin & Co., St. Paul’s Churchyard,

Patent apparatus for roasting coffee in silver.

The illustration in the following page represents thearrangement adopted in this apparatus.