Specification of William Brunton : steam engines and furnaces.

  • Brunton, William.
Date:
1854
Catalogue details

Licence: Public Domain Mark

Credit: Specification of William Brunton : steam engines and furnaces. Source: Wellcome Collection.

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    u c Brunton's Improvements in Steam Engines, Furnaces, cfyc. into the receiver (d), and while the said fluid is thus collecting in the said receiver, (he other two cocks or valves (/) and (g) are shut. But when the fluid is to be raised from the said receiver, and sent into the top of the working- cylinder, then the said under fluid valve (c) is shut, and the steam valve (/) and the upper fluid valve (g) are both open. The steam being thus brought 5 to act upon the surface of the fluid in the receiver, forces it up the said as¬ cending pipe (i, h), whence by the upper orifice (h) it is discharged on the top of the double piston. When the fluid has been thus tramitted from the receiver to the upper side of the double piston, the upper fluid valve (g) and the steam valve (/) are to be again shut, and the under fluid valve to be again opened 10 to permit the fluid that passes the piston to be collected again in the receiver. In cases where the working cylinder is higher than the pressure of the steam can raise the fluid, I then apply two or more sets of the forcing apparatus that has just been described, so constructed and connected that the said fluid may be forced to ascend by successive steps till it is raised to the requisite height, 15 and discharged into the working cylinder, as already described. The valve or valves through which the fluid metal passes are best made of iron. The steam valve may be of brass, and the fluid metal and steam valves are so connected by the well-known means of levers that by one movement of the hand the whole may be moved in the manner required by the nature of the operation; 20 or without using any part of the said forcing apparatus my said improved piston may be kept in a proper state of action by the person who attends the engine drawing off occasionally from the said receiver the said fluid metal therein collected, and introducing the same by hand through a funnel and cock in the cover of the working cylinder. 05 In applying my said double piston to the working of single engines, all the parts are essentially the same as those above described for the double engine, but with this difference The upper piston is so formed that the reservoir is tin ee inches (01 thei eabouts) higher than the to j> of the packing- ring or cover of the upper piston (see Figure 2); through the upper piston I form one 30 opening or two or more openings (Jc), by which part of the fluid in the leseivoii (when the same is full) may flow upon the top of the packing of the upper piston during the ascending of the double piston, or when it is in equilibrio. Upon or in each of these openings I place a valve or valves (see Figure 2) to permit the fluid to flow from the reservoir, but to resist its return 35 thither. The fluid thus diffused on the top of the entire piston prevents the passage of steam downwards, and whatever portion of the fluid is forced past the side of the piston finds its way into the receiver, whence it is forced from time to time, or transferred by hand to the upper side of the piston, as above described. 40