Babcock and Wilcox Water-tube Boiler, section at AB-front elevation
The rear end of the machine is mounted upon two wheels. A trough, with a runner-like bow, containing…
The machine is supported upon two wheels, one in the rear of the other. The body is hopper shaped, with…
A cylinder with a triple threaded screw in a water tight case that revolves ater to the top for the…
"Reversing rod inside hollow propeller shaft: by twisting the blades round, the motion of the boat is…
"The valve gear for operating the steam hammer is shown separately, the cylinder and valve chest being…
"A vertical section through the valve casing of a double-column hammer, used for heavy forge work."—Finley,…
"A transverse section through the valve casing of a double-column hammer, used for heavy forge work."—Finley,…
"A section through the valve casing of a double-column hammer, fitted with a valve v provided with three…
"The steam engine, in its many forms, is the agent by means of which part of th eenrgy stored up in…
"The Leyden jar and discharger. Its discovery is attributed to the attempt of Musschenbrock and his…
"Machines of this kind may be constructed with as many pairs of plaes, combs, and brushes as can be…
Two oppositely rotating glass discs connected to seperate Leyden jars generate electricity. -Atkinson…
"The series and shunt methods of winding [a dynamo] may be combined in the same machine, producing what…
"A common scale-beam, used for weighing, is a lever, suspended at the centre of gravity, so that the…
"When several simple levers are connected together, and act one upon the other, the machine is called…
"This figure represents the machine endwise, so as to show in what manner the lever operates. The two…
"To change the direction, it is only necessary that the rope by which the weight is to be raised, should…
"...represents a simple pulley, with a single fixed wheel. In other forms of the machine, the wheel…
"It is apparent by turning the crank, C, the wheel will revolve, for the thread of the screw passes…
"A combination of all of the simple machines." -Comstock 1850
"The large wheel a, is supposed to stand over the well, and b, a smaller wheel, is fixed in the water.…
"When large quantities of electrical fluid are wanted for experiment, or for other purposes, it is procured…
"Carefully place a fine sewing needle upon the surface of the water. With care, and perhaps repitition,…
"In mechanics, the word 'machine' signifies an instrument for the conversion of motion or the transference…
"...the mechanical advantage of this machine (wheel and axle) equal the ratio between the radii, diameters,…
"Machine used to generate electricity by induction using transformed kinetic energy from the crank."…
"The Wimhurst machine is used to generate small amounts of static electricity which are then stored…
"The tin-foil strips or carriers on the rear plate of a Wimhurst machine are represented by the outer…
"A labratory liquid air machine used by Thomson and Joule used to cool hydrogen from a gaseous state…
"Illustration showing current leakage through the rame of a machine which is insulated from the ground."…
"Path of current through person receiving a shock from the fame of a machine insulated from ground.…
"Machine designed by Atwood to allow the measurement and calculation of the velocities of falling bodies…
"... a farmer with a crowbar, as shown, can move a rock which with his hands alone he could not stir."…