The Plough, the loom and the anvil . 44 Yalve Motion invented by J. K. Fisher. nary purposes. The larger sizes are peculiarly adapted to railroadstations, salt works, mining and manufacturing purposes. Letters patent were taken out for the United States by Mr. HoseaLindsey, of Asheville, N. C, on the 4th of December, 1855. Pricesare from $30 to $54 for pump and 50 feet of pipe. A royal patent hasbeen secured for England and Ireland. VALVE MOTION INVENTED BY J. K. The chief peculiarity of thismotion consists in concentrat-ing the motion at the timeof oj)ening the exhaust, andadmitting
The Plough, the loom and the anvil . 44 Yalve Motion invented by J. K. Fisher. nary purposes. The larger sizes are peculiarly adapted to railroadstations, salt works, mining and manufacturing purposes. Letters patent were taken out for the United States by Mr. HoseaLindsey, of Asheville, N. C, on the 4th of December, 1855. Pricesare from $30 to $54 for pump and 50 feet of pipe. A royal patent hasbeen secured for England and Ireland. VALVE MOTION INVENTED BY J. K. The chief peculiarity of thismotion consists in concentrat-ing the motion at the timeof oj)ening the exhaust, andadmitting steam. This con-centration is effected by asHding joint in the arm of therock-shaft. To the valve-stem is jointed a lever, whoseupper end is connected by arod to an arm on a rock-shaft, whose throw is such as to move thevalve a distance equal to the lap and lead; this rock-shaft is workedby the cross-head, and therefore the motion it gives to the valveterminates exactly at the end of the stroke. The lower end of the lever receives its motion from a rock-shaft,worked by the cross-head of the opposite engine; which motion ishalf performed when the crank is at the dead point; hence, whateverextent of travel is given by the lower end of the valve-stem lever, thelead will be the same for all admissions, in forward or backward rock-shaft which moves the lower end has a slotted arm, inwhich a block slides. This block is carried by a pin which projectsfrom the cr
Size: 1891px × 1322px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade, booksubjectagriculture, bookyear1848
