Appleton's dictionary of machines, mechanics, engine-work, and engineering . The horizontal screw a a, working into a nut in the foot of the upper screw-frame, effects the horizon-tal or traversing movement of the jack, the frame of the lower screw serving as a bed or slide for thelatter movement. A ratchet-lever may be used to work either of the screws instead of a crank. The Hydraulic Jack (Patent Portable Hydraulic Jack, R. Dudgeon, New York) is the simplest JACQUARD LOOM. 133 and most portable in comparison with the force it is capable of exerting. This jack, or press, appearsto the eye, w
Appleton's dictionary of machines, mechanics, engine-work, and engineering . The horizontal screw a a, working into a nut in the foot of the upper screw-frame, effects the horizon-tal or traversing movement of the jack, the frame of the lower screw serving as a bed or slide for thelatter movement. A ratchet-lever may be used to work either of the screws instead of a crank. The Hydraulic Jack (Patent Portable Hydraulic Jack, R. Dudgeon, New York) is the simplest JACQUARD LOOM. 133 and most portable in comparison with the force it is capable of exerting. This jack, or press, appearsto the eye, when depressed, a simple cylinder, and when elevated, to one cylinder sliding within is from two to eight or more inches in diameter, according to the power desired, with an enlargedhead (attached to the inner cylinder, which is the ram), having a socket for the reception of the lever, bywhich the piston of the force pump is worked. The ram, with its head, contains just so much water or other fluid as is required to fill the vacancyin the cylinder, caused by the
Size: 1148px × 2178px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectmechanicalengineering, bookyear1861
