218 Class 5.—MACHINES FOR DIRECT USE, INCLUDING CARRIAGES, [United

North Areas A. B. 10 to 34; C. D. E. 1 to 10, & 19 to 33 ; F. 1 to 32 ; G. II. 1 to 13, & 19 to 26.

39 Clayton, Shuttleworth, & Co., Lincoln —Manufacturers.

Eight-horse power fixed steam-engine of an improvedconstruction. This engine is of the description knownas having an oscillating cylinder, which reduces the num-ber of working parts, rendering it very simple and lessliable to get out of repair. It is well adapted for workingfixed barn machinery, saw-mills, corn-mills, &c. Thefollowing cut represents the steam-engine fixed and readyfor work. The power may be communicated by a leatherband over the fly-wheel, or through the medium of aspur-wheel and pinion.

Clayton, Shuttleworth, & Co.’s Oscillating Engine.

40 Pope, William, & Son, 81 Edgeware Road, and GroveFoundry , Lisson Grove —Manufacturers and Designers.Improved oscillating cylinder steam-engine of four-horse

power, with parallel valve gear acted on by an eccentric;its object is to effect economy of space, and efficiency inaction.

41 Nasmyth, J., Manchester —Inventor.

A steam-engine.

42 Donkin, Bryan, & Co., Bemnondsey —

Manufacturers and part Inventors.

Patent disc water-meter. Patent improved disc engine,intended to effect rotary action, with high speed, and inlittle space; it is free from dead points. Disc pump,with a rotatory instead of an alternating motion, and pro-ducing a continued stream of water without air-vessels or

valves. ___

44 Armstrong, W. G., Newcastle-upon-Tyne —Inventor.

Model hydraulic crane, for railway stations, docks, orquays. The power may be supplied either from the waterpipes of a town, where the pressure is considerable, orfrom the action of a steam-engine with an accumulatingreservoir.

Model steam-engine, with plunger pumps, especiallyadapted to the working of hydraulic lifting machinery.

Model of accumulator, for equalizing the working ofthe engine.

Model corn-lift, worked by hydraulic power, for cornwarehouses.

Model of machine for unshipping coals by hydraulicpower.

45 Lloyd, Edward, Glyndwrdu , near Corwen ,

Wales —Inventor.

Patent steam-engine, on the double-cylinder expansionprinciple.

46 Siemens, Charles W., Summerfield Cottage ,Birmingham Heath , Birmingham —Inventor.

Chronometric governor for a fifty-horse power engine.It consists of a conical pendulum, which is maintainedin motion by a permanent power, independently of thevelocity of the engine. This power is obtained by simplyattaching a weight to the throttle-valve lever. A uniformangle of rotation is insured by means of a break, which isacted upon by the pendulum on reaching its desired incli-nation, and absorbs any excess of driving power whichthe weight may supply. A differential motion betweenthe conical pendulum and the engine at once adjusts thevalve to the altered condition of load or power.

In Watt’s centrifugal, and other governors, the powernecessary to move the valve is only gradually accumulatedby an actual change in velocity, and the valve is main-tained in its altered position on condition of an alteredspeed of the engine.

The action of the chronometric governor is, on thecontrary, immediate, and the regulation of speed abso-lute, however great the variation of load may be.

This governor has been applied successfully to steam-engines, Barker’s mills, and by the Astronomer Royal, togive smooth and accurate motion to astronomical instru-ments.

Model of simplified chronometric governor, in whichan expanding fly-wheel has been substituted for the moredelicate conical pendulum. The action of this governoris illustrated by preventing a fly-wheel from being turnedabove a certain speed.

Model of a variable expansion valve, consisting of arevolving cylinder divided in two in a helical curve cor-responding with a helical aperture in the outer shell.The governor moves one portion of the revolving cylinderendways, and thereby varies the time for the admissionof steam to the engine. This valve should be applied inconnexion with the improved chronometric governor,which has sufficient power to work it with certainty.

Model of a surface condenser, showing an effective andsimple arrangement of condensing surface.

Water-meter, in action, working under pressure. Thenovelty consists in the water impinging, in its passage, ontwo sets of helical blades which travel in opposite direc-tions (being right and left handed), whereby deflection ofthe current and the effect of local currents are compen-sated. Its advantages are simplicity and efficiency ofaction.

Model of regenerative condenser, which possesses thenew and useful property of returning the condensing andcondensed water at the initial temperature of the steam,212° Fah., previous to its release from the workingcylinder, producing nevertheless an effective vacuum.When applied to high-pressure engines it allows a largeproportion of the waste steam to escape, and condensesthe remainder with a minimum of condensing water.

It has been applied to engines of different sizes, whereit has been found to effect a considerable saving of fuel.

If applied to high-pressure engines, it produces anadditional atmosphere’s effective pressure upon theworking piston, with a quantity of injection-water littleexceeding the quantity of feed-water for the boiler. Aportion of the steam escapes uncondensed, and may beused to produce draught (in the case of the locomotiveengine), or other purposes. The power required to workthe air-pump of a common condenser is saved. Theboiler is supplied with boiling-hot feed-water, &c.

Working model of a regenerative evaporator, appli-cable to the evaporation of brine, cane-juice, and othersolutions, and to the distillation of sea-water (convertingit into fresh water), spirits of wine, &c.

A circulating current of air is passed along the surface