214 Class 5.—MACHINES FOR DIRECT USE,

North Areas A. B. 10 to 34 ; C. D. E. 1 to 10, & 19 to 33

whence it finally escapes into the condenser. The presentarrangement is designed to admit of the application ofhigh-pressure steam, and the expansive principle, toengines originally constructed for working low-pressuresteam. This is effected hy placing the high-pressurecylinder at one end of the beam, and the low-pressurecylinder at the other. Power being thus applied at thetwo ends of the beam neutralizes the strain upon themain centre, and removes the cause of the shaking of themachinery and building, experienced in ordinary beamengines when heavily loaded. In the example exhibited,the arrangement is adapted for marine-engines, and offersthe means of obtaining increased power in a limited space,with equable motion and strain,

Montgomery’s self-acting break for railway carriages.To the axle of each carriage is attached a break, acted onby a spring ; the shackle of each carriage is fixed to thisspring, so that when the tractive power is withdrawn, thepressure of the breaks is applied.

2-1 Lynch & Inglis, Garratt Road, Manchester —Manufacturers and Designers.

One-horse portable steam-engine, for driving agricul-tural or other machinery.

25 Crosskill, William, Iron Works, Beverley —Patentee and Manufacturer.

A steam-engine.

20 Fairbairn, W., & Sons, Manchester —Inventorsand Manufacturers.

Six-horse steam-engine.

28 Macintosh, John, 5 Gray’s Inn Square —Inventor.

1. Patent rotatory steam-engine. The novelty consistsprincipally in the use of the flexible outside belt, wherebythe friction is greatly diminished, and unequal wearobviated.

2. Patent rotatory steam-engine. Applicable where agreat speed is required direct from the shaft.

3. Patent rotatory steam-engine. Applicable to thesame purpose as the preceding. The peculiarity of thisengine is in the construction of the piston.

29 Hodge & Batley, 9 Adam Street, Adelphi —

Manufacturers.

Steam-engine.

30 Ransomes & May, Ipswich —Inventors and

Manufacturers.

A five-horse power steam-engine.

84 Butterley Co., Alfreton, near Derby —Producer.

Oscillating steam-engine, of 10-horse power, without aslide valve, the steam being admitted and exhaustedthrough the trunnions by the motion of the cylinder.

35 Carrett, William Elliot, 13 Rockingham Street,Leeds —Inventor and Patentee.

A steam-pump, combining a high-pressure engine, andan improved suction and force pump, designed and con-structed for filling low or high pressure locomotive, sta-tionary, or marine steam-boilers, and for fetching or forcingwater any distance or height; it may, by disconnectingthe pump, be used as a steam-engine for driving portablemachinery for engineering works, the household or farm-yard, for working hydraulic presses, water-cranes, &c.

A portable steam-pump, for lifting or forcing water.Applicable to the supply of steam boilers—locomotive,marine, and stationary. Also as a water-lift to workhydraulic presses, water cranes, &e. Fig. l shows afront, and Fig. 2 an end, elevation of the steam-pump.

This apparatus is a simple form of high-pressure engine,with a lifting and a force pump combined; is portableand complete in itself, requiring no other fixing than theattachment of the steam and water pipes.—Invented byW. E. Carrett, engineer, Leeds, and registered Aug. 31,1850. It is constructed to fetch or force water any re-quired distance in one continuous stream, without shock

INCLUDING CARRIAGES, [United; F. 1 to 32 ; G. H. 1 to 13, & 19 to 26.

Fig. 1. Fig. 2.

Garrett’s Steam-pump

or injury to the pipes or machinery; and at an effectivevelocity. The pump can also be disconnected, when theengine is to be used singly for driving small machineryof the household or the farm-yard.

[This patent steam-pump, which was adopted by theRoyal Commissioners, in the Boiler-house, at the Ex-hibition Building, is an example of the applicationof steam-power for lifting or forcing water under anypressure, and for every variety of purpose. It sup-plies an important want frequently experienced inengineering, agricultural, and manufacturing works, ofa ready means of lifting and conveying water supplies,without involving the trouble and expense of fixedmachinery of complicated construction. It can be ad-justed to work under all varieties of pressure at a uni-form speed, and is capable of fetching or forcing water, ata maximum velocity, any required distance, without shockor concussion to the pipes. Size No. 1 of this apparatusis constructed to deliver 10 gallons per minute, at apressure of 50 lbs. per inch, or 100 feet high. It will beobvious that, by increasing the size of the pump-ram.twice this amount of water can be raised one-half theheight, or in any other quantity or proportion. Forpumps from 2-horse power and upwards, side-rods andslide-bars are substituted in place of the cross-headmovement, shown in the cut; the size of the wholeapparatus, in both cases, being little more than that ofthe diameter of its own fly-wheel. The engine iscomplete and perfect in itself, and can, by its simpledisconnection from the pump-ram, be used as a rotativepower to work suitable machinery, &c. A peculiarfeature of improvement in this pump, may be said toconsist in the introduction of two accumulating vessels

in connection with the influx and efflux passages_these,

by their action, producing a continuous stream of waterthroughout the whole length of the pipes.

Without a provision of this nature, the barrel of thecommon pump is only partially filled at each stroke, andthe ram is consequently driven against the surface of thewater with a serious shock at each down-stroke. In thispump, the lower valve, at each ascent of the plunger,drains its water-supply from the bottom of the inductionair-vessel; which again is fully replenished by the suc-tional power from the reservoir. When the plungerdescends, the water in the barrel is driven through theupper valve into the discharge air-chamber, and makesits escape thence in a continuous stream, under thepressure of the contained air. Thus the pump has anoiseless and perfectly smooth action, with a uniformdelivery. Hence its capability to fetch or force waterany required distance, at a much more effective velocitythan has hitherto been accomplished, without the usualand expensive resort of a trio of lesser pumps in neutralconnection, driven by a three-throw crank.

The peculiar advantages of this continuous streamwill be obvious, for since the water is always in motion