224 Class 5.— MACHINES FOE DIEECT USE, INCLUDING CAEEIAGES, [United

North Areas A. B. 10 to 34 ; 0. D. E. 1 to 10, & 19 to 33 ; F. 1 to 32; G. H. 1 to 13, & 19 to 20.

118 Fitt, William, Ponder’s End —Designer.Working models of wind, water, and steam engines.

Exhibited for economy and improved construction ; thesteam-engine is on the high-pressure principle, and has apeculiar arrangement for working the fly-wheel shaft witha single crank. The correcting machinery is so arrangedas to admit of any one of the three engines to workseparately.

119 Firth, T. & J., Eliza Street, Belfast —Inventors.Improved hollow furnace-bars.

Fig. 1.

Fig. 1 of the drawings is an elevation of this furnace-bar ; Fig. 2, a cross section of three of these bars; A Aare the bars, B B the bearers upon which they rest. The

Fig. 2.

bars are slightly arched, so that they may, with a given

Firth’s IIollow Fire Cars.

amount of material, be stronger than if straight. Thelower edge has a channel, C, cut in it from end to end,as shown in the cross section. The air rushing alongthese channels keeps the bars partially cool, and escapesin a heated state into the furnace at each end of the barsthrough the openings at a a, formed by cutting off th e topcorners, b b, of the bars.

122 Hurry, H. C., 81 King Street, Manchester —Inventor.

A model, showing improvements in lubricating. Patentdated May, 1850. The novelty consists in forming achamber for the oil within or about the part to be lubri-cated. The advantage assumed is, that perfect lubricationis thus obtainable without waste of oil. The annexedillustration represents, in section, a portion of the cylinderand piston of a stationary steam-engine, showing the im-provements exemplified by the model, as applied to stuff-ing-boxes, and to fibrously packed pistons ; a a is a per-forated hoop placed in the middle of the packing, to forma chamber for the reception of oil about the part to belubricated ; e c is a reservoir for containing the supply;b b are tubes of communication between the reservoir (c)and the hoop («); ef g, is an apparatus for charging thereservoir (c) periodically; this is also, in some cases,effected by a hole drilled down the piston-rod, or by aplug-hole in the cylinder cover, and an independentfunnel of peculiar form.

[In order to render the lubrication of machines effec-tual, the surfaces should be supplied with a fine streamcontinually flowing. The apparatus in question is in-tended to effect this result with a smaller amount of lossof material than usual.—S. C.]

' -''rr ifvFoh at

iiiiiiiaiiii I

f Ills ' ll

Section showing Hurry’s Lubricating Improvements.

124 Galloway, William & John, Manchester —

Manufacturers.

Patent lifting jacks, for raising, moving, or turningover heavy bodies; made of wrought-iron, and case-hardened.

Patent steam-engine boilers, with new internal flues,by which the gases from two additional fires within theboiler are united and brought into admixture in a chamber,or throat, immediately beyond the fire-bars of the grates,so that by alternate ignition the smoke of the newly-madefire is effectually consumed. The vertical water-cones,in the back portion of the flue, being acted upon by theflame, are active agents in the generation of steam, andkeep up a constant circulation of the water. One of theseland-boilers of thirty-horse power is in operation in theExhibition. _

125 Flynn, W. P., 16 Summer Hill South, Cork —

Inventor.

Improved paddle-wheel, combining the action of thescrew with that of the wheel. Provisionally registered.

126 Terrett, Eiciiard, 2 Homer Street, Lambeth —Inventor.

Feathering paddle-wheel, and feathering windmill—constructed on an improved principle. Intended to savepower, and prevent strain and friction.

127 Vallance, P., 1 Davies Street, Berkeley Square —Producer.

Horizontal wind-mill.

128 Willi son, Kobert, Alloa , Scotland —Manufacturer. and Inventor.

. Model of double-acting force and vacuum pump,adapted for mines.

129 -

Model copper boiler.