"ABCD is a cylinder of glass 1 foot in diameter and 1 foot high. This cylinder is closed by a glass lid pierced centrically by two openings, each about 20 lines wide. Into the middle opening is cemented a glass tube 2 feet high, to the upper end of which is fitted a torsion head; the separate parts of the head are shown larger at the side of the figure. H is a collar cemented to the glass tube; MO a metal disc, divided on the edge into 360 degrees; this disc is fastened to a tube N, which slips into the collar H. K is a button whose neck turns easily in a hole in MO; to the lower part of the button is fastened a small clamp, which seizes the wire of the balance. I is an arm with a small projecting piece which slips over the edge of the disc MO." — Encyclopedia Britannica, 1893

Torsion Balance

"ABCD is a cylinder of glass 1 foot in diameter and 1 foot high. This cylinder is closed by a glass…

"Cavallo's electroscope embodies the double pendulum principle. It consists of two fine silver wires loaded with small pieces of cork or pith, and suspended inside a small glass cylinder. Through the cap which closes the cylinder passes the stout wire from which the pendulums are suspended. This wire ends in a thimble-shaped dome A, which comes down very nearly to the cap; the outside of the cap is part of the wire and covered with sealing wax, and the object of the dome is to keep moisture from the stem, so that the electroscope could be used in the open air even in rainy weather." — Encyclopedia Britannica, 1893

Cavallos Electroscope

"Cavallo's electroscope embodies the double pendulum principle. It consists of two fine silver wires…

"Hearson's machine is cylindrical in form, and is surmounted by two turrets. Internally the cylinder is divided into two compartments by a transverse portion, one being occupied by a rotary blower, an apparatus similar in construction to the drum of a water-meter, and the other by an elevator or dipper wheel, the function of which is to raise gasolin into the blower chamber, where the gasoline must be maintained at a constant level." — Encyclopedia Britannica, 1893

Auto-Pneumatic Apparatus

"Hearson's machine is cylindrical in form, and is surmounted by two turrets. Internally the cylinder…

"The cylinder is placed vertically in the jaws of a cutting instrument, having a diamond cutter, pressing by a spring, inside the glass. The cutter moves by small wheels on the table on which it is placed, and being pushed around the cylinder it makes an accurate cut of uniform height." — Encyclopedia Britannica, 1893

Glass Cutter

"The cylinder is placed vertically in the jaws of a cutting instrument, having a diamond cutter, pressing…

"Now the splitting is done with a diamond cutter fixed in the fleft of a stick and guided from end to end of the cylinder by a straight-edge K laid within it. The cylinder is now ready to be taken to the flattening kiln." — Encyclopedia Britannica, 1893

Glass Cutter

"Now the splitting is done with a diamond cutter fixed in the fleft of a stick and guided from end to…

"In the arrangement of the flattening and annealing ovens numerous improvements have been effected, which have resulted in greatly increased smoothness and uniformity of the glass, and in considerable economy of time and labor in the operations. This shows a section of a flattening (L) and annealing kiln (M) in common use. The split cylinder O is introduced and gradually pushed forward so as to be uniformly heated till it reaches P, the flattening stone or table, mounted on a movable waggon N. On this waggon after it has been flattened it is carried into the annealing arch M, as shown by the dotted outline. Here in a less heat is graually stiffens, till it is ready to be moved by a forked tool to a horizontal position on the bed of the annealing oven." — Encyclopedia Britannica, 1893

Glass Cutter

"In the arrangement of the flattening and annealing ovens numerous improvements have been effected,…

"M. Cailleter's apparatus is represented. The gas under experiment is contained in a stout glass tube of narrow bore. To fill this tube with gas, both ends being open, a globule of mercury is first introduced at the lower curved extremity; the tube is then placed in a nearly horizontal position, the curved extremity is connected with the holder contraining the gas, or with the apparatus in which the gas is being evolved, by means of caoutehone tubing, and a current of the pure dry gas is passed through the tube until the air is entirely expelled; this being effected, the point opposite to the curved extremity is sealed in the blowpipe flame; the tube is then brought into a vertical position, so that the globule of mercury closes the lower extremity, the caoutchouc tube is withdrawn, and the tube AA thus filled is screwed into its place in the cylinder B." — Encyclopedia Britannica, 1893

Gas Liquidation

"M. Cailleter's apparatus is represented. The gas under experiment is contained in a stout glass tube…

"M. Cailleter's apparatus is represented. The gas under experiment is contained in a stout glass tube of narrow bore. To fill this tube with gas, both ends being open, a globule of mercury is first introduced at the lower curved extremity; the tube is then placed in a nearly horizontal position, the curved extremity is connected with the holder contraining the gas, or with the apparatus in which the gas is being evolved, by means of caoutehone tubing, and a current of the pure dry gas is passed through the tube until the air is entirely expelled; this being effected, the point opposite to the curved extremity is sealed in the blowpipe flame; the tube is then brought into a vertical position, so that the globule of mercury closes the lower extremity, the caoutchouc tube is withdrawn, and the tube AA thus filled is screwed into its place in the cylinder B." — Encyclopedia Britannica, 1893

Gas Liquidation

"M. Cailleter's apparatus is represented. The gas under experiment is contained in a stout glass tube…

"The common pump consists of a hollow tube, the lower part of which, descending into the water, is called the suction-pipe, and the upper part, b, the battel or cylinder; of a spout, s, at the top of the cylinder; of an air-tight priston, which works up and down in the cylinder; and of two valves, both opening upwards, one of which, g, is placed at the top of the suction-pipe, and the other, p, in the piston." — Wells, 1857

Pump

"The common pump consists of a hollow tube, the lower part of which, descending into the water, is called…

"In the forcing-pump atmospheric pressure plays but a small part. There is no valve in the piston c, but the water raised through the suction-pipe a, and the valve g, is forced by each depression of the piston up through the pipe e e, which is furnished with a valve to prevent the return of the fluid." — Wells, 1857

Forcing-Pump

"In the forcing-pump atmospheric pressure plays but a small part. There is no valve in the piston c,…

"The chain-pump consists of a tube or cylinder, the lower part of which is immersed in a well or reservoir, and the upper part enters the bottom of a cistern into which the water is to be raised. A chain is carried round a wheel at the top, and is furnished at equal distances with movable bottoms, which fit water-tight in the tube. As the wheel revolves, they successively enter the tube, and carry the water up before them, which is discharged into the cistern at the top of the tube." — Wells, 1857

Chain-Pump

"The chain-pump consists of a tube or cylinder, the lower part of which is immersed in a well or reservoir,…

"A form of an electrical machine. S being the glass cylinder turning on an axis, Y the conductor, F the rubber, A A supports." —Wells, 1857

Electrical Machine

"A form of an electrical machine. S being the glass cylinder turning on an axis, Y the conductor, F…

"Morse magnetic telegraph will be understood by reference to the accompanying diagram, which represents the construction and arrangement of this form of telegraph. F and E are pieces of soft iron surrounded by coils of wire, which are connected at a and b with wires proceeding from a galvanic battery. When a current is transmitted from a battery located one, two, or three hundred miles, as the case may be, it passes along the wires and into the coils surrounding the pieces of soft iron F and E, thereby converting them into magnets. Above these pieces of soft iron is a metallic bar or lever, A, supported on its center, and haing at one end the arm D, and at the other a small steel point, o. A ribbon of paper, p h, rolled on the cylinder B, is drawn slowly and steadily off by a train of clock-work, K, moved by the action of the weight P on the cord C. This clock-work gives motion to two metal rollers, G and H, between which the ribbon of paper passes, and which, turnin in opposite directions, draw the paper from the cylinder B. The roller H has a groove arond its circumference (not represented in the engraving) above which the paper passes. The steel point, r, or the lever, A, is also directly opposite this groove. The spring r prevents the point from resting upon the paper when the telegraph is not in operation." —Wells, 1857

Magnetic Telegraph

"Morse magnetic telegraph will be understood by reference to the accompanying diagram, which represents…

"A small porcelain cylinder ornamented with interlaced lotus flowers in intaglio, having a ring for suspension." — The Encyclopedia Britannica, 1910

Egyptian Charm

"A small porcelain cylinder ornamented with interlaced lotus flowers in intaglio, having a ring for…

"A section of part of a lace machine. E is the cylinder or beam upon which the lace is rolled as made, and upon which the ends of both warp and weft threads are fastened at starting. Beneath are w, w, w, a series of trays or beams, one above the other, containing the reels of the supplies of warp threads; c, c represent the slide bars for the passage of the bobbin b with its thread from k to k, the landing bars, one on each side of the rank of warp threads; s, t are the combs which take it in turns to press together the twistings as they are made. The combs are so regulated that they come away clear from the threads as soon as they have pressed them together and fall into positions ready to perform their pressing operations again." —The Encyclopedia Britannica, 1910

Lace Machine

"A section of part of a lace machine. E is the cylinder or beam upon which the lace is rolled as made,…

"Striking machines are now very generally used for the operation. These consist of a drum or cylinder having a parallel series of projecting knives, or plates of gun-metal, set angularly across its surface. Underneath the drum is a brass bed, fixed on a yielding cushion, which can be pressed up or eased by means of a foot lever, according as the leather operated on is thick or thin." —The Encyclopedia Britannica, 1910

Striking Machine

"Striking machines are now very generally used for the operation. These consist of a drum or cylinder…

"Courtney's Automatic Buoy. A, cylinder, 27 ft. 6 in. long; B, mooring shackle; C, rudder; D, buoy; E, diaphragm; F, ball valves; G, air inlet tubes; H, air (compressed) outlet tube to whistle; I, compressed air inlet to buoy; K, manhole; L, steps; N, whistle." —The Encyclopedia Britannica, 1910

Automatic Buoy

"Courtney's Automatic Buoy. A, cylinder, 27 ft. 6 in. long; B, mooring shackle; C, rudder; D, buoy;…

"The simple outline of the atmospheric engine. Its mode of operation is as follows. Steam is admitted from the boiler into the cylinder, through the tube l, by means of a regulating cock, e, which is worked by a handle outside the boiler; the pressure of the atmosphere above the piston being thus balanced by the force of the steam beneath it, the extremity of the lever beam to whch the piston is attached is elevated by proportionate weights, w, attached to the pump-rod, and the piston is drawn to the top of the cylinder, the other extremity of the beam being depressed." —Comstock, 1850

Newcomens Engine

"The simple outline of the atmospheric engine. Its mode of operation is as follows. Steam is admitted…

"The first alteration to be noticed in the double-acting engine is that of the cylinder. To insure its double action, it is necessary to provide, at each end of the cylinder, a means of admission of steam from the boiler, and of escape for the steam to the condenser. Hence the double action, which means that the piston is both raised and depressed by the force of steam. For this purpose, a steam box is fixed to each end of the cylinder, communicating, in the one case with the upper, in the other with the lower, surface of the piston. B is the upper, and and B' the lower, steam box. Each of these boxes is furnished with two valves." —Comstock, 1850

Double-acting Cylinder

"The first alteration to be noticed in the double-acting engine is that of the cylinder. To insure its…

"The first alteration to be noticed in the double-acting engine is that of the cylinder. To insure its double action, it is necessary to provide, at each end of the cylinder, a means of admission of steam from the boiler, and of escape for the steam to the condenser. Hence the double action, which means that the piston is both raised and depressed by the force of steam. For this purpose, a steam box is fixed to each end of the cylinder, communicating, in the one case with the upper, in the other with the lower, surface of the piston. B is the upper, and and B' the lower, steam box. Each of these boxes is furnished with two valves." —Comstock, 1850

Double-acting Cylinder

"The first alteration to be noticed in the double-acting engine is that of the cylinder. To insure its…

"A small cylinder of lime is heated to intense luminosity in the flame of a spirit lamp through which a jet of oxygen plays." —The Encyclopedia Britannica, 1903

Oxy-calcium Lamp

"A small cylinder of lime is heated to intense luminosity in the flame of a spirit lamp through which…

"AB is a strong metal tube, closed at the lower end, and carrying at the upper a bent pipe for admitting the compressed gas and a stop-cock R pierced with holes in a T form. DE and FG are two graduated glass tubes communicating at their lower ends by a narrow passage in the metal block to which they are hermetically fixed. DE and AB Also communicate at the upper ends by a passage in a metal piece attached bermetically to them. By the stop-cock R', having radial holes at right angles to each other, DE can communicate either with AB or with the atmosphere at O; and by the stop-cock R'' it can communicate either with FG or with the open air. The three tubes are surrounded by a cylinder MM' containing water to keep the temperature constant. The tube AB is filled with the compressed gas whose pressure is to be ascertained. Mercury is poured into FG till it fills DE and runs out at O." —The Encyclopedia Britannica, 1903

Regnaults Manometer

"AB is a strong metal tube, closed at the lower end, and carrying at the upper a bent pipe for admitting…

"The compressed air manometer consists of a strong graduated glass tube of uniform narrow bore, closed at the top and fixed hermetically into the neck of a wide iron cylinder. The tube contains dry air, and its lower end dips below the surface of mercury contained in the cylinder. Attached to the side of the cylinder is a tube A, with a stop-cock, to afford communication with the vessel the pressure in which is to be measured. When the manometer is attached to the vessel containing compressed gas the mercury rises in the glass tube till the pressure of the air confined in the tube plus the height of the mercury column above the level of the mercury in the cylinder is equal to the pressure on the surface of mercury in the cylinder." —The Encyclopedia Britannica, 1903

Compressed Air Manometer

"The compressed air manometer consists of a strong graduated glass tube of uniform narrow bore, closed…

"The original Merz micrometer of the Cape Observatory, made on Fraunhofer's model. S is the head of the micrometer screw proper, s that of the screw moving the slide to which the so-called "fixed web" is attached, s' that of a screw which moves the eye-piece E. C is the clamp and M the slow motion in position angle, L, L are tubes attached to a larger tube N; the latter fits loosely on a strong hollow cylinder which terminates in the screw V. By this screw the whole apparatus is attached to the telescope." —The Encyclopedia Britannica, 1903

Micrometer

"The original Merz micrometer of the Cape Observatory, made on Fraunhofer's model. S is the head of…

A cylinder

Cylinder

A cylinder

Nerve cell from the brain; <em>a</em>, processes by which it communicates with other cells near by; <em>ax</em>, long process or axis cylinder terminating in the tail end of the spinal cord; <em>n</em>, nucleus.

Nerve Cell

Nerve cell from the brain; a, processes by which it communicates with other cells near by;…

Cylinder, charing cross bridge

Cross Bridge

Cylinder, charing cross bridge

It consists of a sheet-iron furnace, having the form of a half cylinder, tapered at the end's, in which a fire is built, and this heated furnace, being drawn along the furrow, destroys the worms.

Army-Worm Killer

It consists of a sheet-iron furnace, having the form of a half cylinder, tapered at the end's, in which…

A cylinder with a triple threaded screw in a water tight case that revolves ater to the top for the irrigation of land.

Archime' dean Screw

A cylinder with a triple threaded screw in a water tight case that revolves ater to the top for the…

Sir Robert S. Ball's Theory of Screws.

Theory of Screws

Sir Robert S. Ball's Theory of Screws.

"The valve gear for operating the steam hammer is shown separately, the cylinder and valve chest being in section."&mdash;Finley, 1917

Valve gear of a steam hammer

"The valve gear for operating the steam hammer is shown separately, the cylinder and valve chest being…

a is the burner tip for an oxy-hydrogen flame, and b is the cylinder of quicklime.

Lime-Light Burner

a is the burner tip for an oxy-hydrogen flame, and b is the cylinder of quicklime.

"Experiment illustrating the nature of an induced charge. The apparatus consists of a metal ball and cylinder, both mounted on insulated stands, pith balls being placed on the cylinder at points C, D and E." -Hawkins, 1917

Induced Charge

"Experiment illustrating the nature of an induced charge. The apparatus consists of a metal ball and…

"Lines of force of a charged sphere and a conductor under induction. The negative electrification on the end a of the cylinder indicates that an equal number of lines set out from that end." -Hawkins, 1917

Lines of Force under Induction

"Lines of force of a charged sphere and a conductor under induction. The negative electrification on…

"...consists of a circular, multipolar field magnet, inclusing a cylinder armature with coils wound back and forth in grooces on its face." -Atkinson 1903

Altenating Current Motor

"...consists of a circular, multipolar field magnet, inclusing a cylinder armature with coils wound…

"It consists of a tube, made of lead, or strong leather, coiled round a cylinder of wood or iron, as represented..." -Comstock 1850

Archimedes' Water Screw

"It consists of a tube, made of lead, or strong leather, coiled round a cylinder of wood or iron, as…

"The wheel and axle consists of a wheel united to a cylinder in such a way that they may turn together on a common axis. It is a modified lever of the first or second class." -Avery 1895

Wheel and Axle with Rope and Bucket

"The wheel and axle consists of a wheel united to a cylinder in such a way that they may turn together…

"A screw is a cylinder, generally made of wood or metal, with a spiral ridge (the thread) winding about its circumfrence. The thread works in a nut, withihn which there is a corresponding spiral groove to receive the thread." -Avery 1895

Screw press

"A screw is a cylinder, generally made of wood or metal, with a spiral ridge (the thread) winding about…

"From one end of a scale-beam, suspend a cylindrical metal bucket, b, with a solid cylinder, a, that fits accurately into it hanging below. Conterpoise with weights (shot or sand) in the opposite scale-pan. Immerse a in water, and the counterpoise will descend, as if a had lost some of its weight. Carefully fill b with water. It will hold exactly the quantity displaced by a. Equilibrium will be restored." -Avery 1895

Archimedies Principle

"From one end of a scale-beam, suspend a cylindrical metal bucket, b, with a solid cylinder, a, that…

"The Nicholson hydrometer of constant volume is a hollow cylinder carrying at its lower end a basket, d, heavy enough to keep the apparatus upright in water. At the top of the cylinder is a vertical rod carrying a pan, a, for holding weights, etc. The whole apparatus must be lighter than water, so that a certain weight (W) must be put into the pan to sink the apparatus to a fixed point marked on the rod (as c). The given body, which must weigh less than W, is placed in the pan, and enought weights (w) added to sink the point c, to the water line It is evident that the weight of the given body is W-w." -Avery 1895

Nicholson Hydrometer

"The Nicholson hydrometer of constant volume is a hollow cylinder carrying at its lower end a basket,…

"The graphic method of studying sounds, which fairly meets even the exacting demands of physicists, and is largely used by them may be briefly explained thus: Suppose the smoked plate [shown] to be a sheet of smoked paper fastened around a cylinder that is mounted that, when it is turned by a crank, the screw cut upon the axis moves the cylinder endwise as shown. Such and instrument is called a vibroscope." -Avery 1895

Graphic Method of Studying Sounds Using a Vibroscope

"The graphic method of studying sounds, which fairly meets even the exacting demands of physicists,…

"One of the best-known instruments of this [electrometer] class is Coulomb's torsion-balance, which consists essentially of gilt ball, i, carried at the end of a horizontal shellac needle that is suspended by a fine silver wire from the top of a tube that rises from the cover of the enclosing glass cylinder. A vertical insulating rod passing through the cover carries a handle, a, and a gilt ball, e, at its ends." -Avery 1895

Coulomb's Torsion-Balance

"One of the best-known instruments of this [electrometer] class is Coulomb's torsion-balance, which…

"A screw is a cylinder with a helical proection winding around its circumference. This helix is called the thread of the screw. The distance that a point of the helix is drawn back or advanced in the direction of the length of the screw during one turn is called the pitch of the screw." &mdash;Hallock 1905

Using a Screw to Raise Weight

"A screw is a cylinder with a helical proection winding around its circumference. This helix is called…

"The vessel a is fitted with a wooden bock of the same size as, and free to move in, the cylinder; the vessel b is filled with water, whose depth is the same as the length of the wooden block in a. When a pressure is applied to a, the pressure will be transmitted to the bottom unchanged. However, when the same pressure is applied to b, the pressure is transmitted everywhere, as the molecules of water are free to move." &mdash;Hallock 1905

Water versus Wood Pressure

"The vessel a is fitted with a wooden bock of the same size as, and free to move in, the cylinder; the…

"From on pan suspend a hollow cylinder of metal t, and below that a solid cylinder a of the same size as the hollow part of the upper cylinder. Put two weights in the other scale pan until they sxactly balance the two cylinders. If a be immersed in water, te scale pan containing the weights will descend, showing that a has lost some of its weight. Now fill t with water, and the volume of water that can be poured into t will equal that displaced by a. The scale pan that contains the weights will gradually rise until t is filled, when the scales will balance again." —Hallock 1905

Archimedes Principle

"From on pan suspend a hollow cylinder of metal t, and below that a solid cylinder a of the same size…

"As the piston ascends, as shown in the left-hand figure, the pressure of the atmosphere forces the water up the suction pipe P; the water opens the suction valve V and flows into the pump cylinder. When the piston moves down, as shown in the right-hand figure, the suction valve is closed and the delivery valve V' opened. The water in the pump cylinder is now forced up the delivery pipe P'." —Hallock 1905

Forcing Pump

"As the piston ascends, as shown in the left-hand figure, the pressure of the atmosphere forces the…

"A double-acting pump of the piston pattern is shown [here]. Such a pump has two sets of suction valves and delivery valves, one set for each side of the piston. With the piston moving in the direction of the arrow, the pressure of the atmosphere forces the water up the suction pipe P into the left-hand end of the pump cylinder, the left-hand suction valve opens and the left-hand delivery valve is closed...The water now flows up the delivery pipe P'." —Hallock 1905

Double-acting Force Pump

"A double-acting pump of the piston pattern is shown [here]. Such a pump has two sets of suction valves…

"For many purposes compressed air is preferable to steam or other gas for use as a motive power. In such cases air compressors are used to compress air. These are made in many forms, but the most common one is to place a cylinder, called the air cylinder, in front of the crosshead of a steam engine, so that the piston of the air cylinder can be driven by attaching its piston rod to the crosshead in a manner similar to a steam pump." &mdash;Hallock 1905

Air Compressor

"For many purposes compressed air is preferable to steam or other gas for use as a motive power. In…

"Let P be a piston, fitted, air-tight, to the cylinder AB. As the piston is driven down, the air, unable to escape, is compressed; as it is drawn back, the air expands." &mdash;Quackenbos 1859

Compressibility of Air

"Let P be a piston, fitted, air-tight, to the cylinder AB. As the piston is driven down, the air, unable…

"Cylinder with a spiral of winding parallel ridges called Threads. If the Threads were unwound from the cylinder, it would be one continuous wedge." &mdash;Quackenbos 1859

Screw

"Cylinder with a spiral of winding parallel ridges called Threads. If the Threads were unwound from…

"Invented to raise water. A hollow tube wound spirally around a solid cylinder. As the cylinder is turned, water is fed up through the hollow tube and discharged at the top of the tube." &mdash;Quackenbos 1859

Archimedes' Screw

"Invented to raise water. A hollow tube wound spirally around a solid cylinder. As the cylinder is turned,…

Right circular cylinder.

Right Circular Cylinder

Right circular cylinder.

Right circular cylinder inscribed in a pentagonal prism. Or, Pentagonal prism circumscribed about a cylinder.

Cylinder Inscribed in Pentagonal Prism

Right circular cylinder inscribed in a pentagonal prism. Or, Pentagonal prism circumscribed about a…

Right circular cylinder with diameter of 8 and height h.

Right Circular Cylinder

Right circular cylinder with diameter of 8 and height h.

Cross section of concrete conduit. The diagram can be used to find volume.

Cross Section of Concrete Conduit

Cross section of concrete conduit. The diagram can be used to find volume.

Cylindrical water tank with a height of 10 ft., thickness of 3 inches, and diameter of 3 feet.  The diagram can be used to find volume.

Cylindrical Water Tank

Cylindrical water tank with a height of 10 ft., thickness of 3 inches, and diameter of 3 feet. The diagram…

Sheet metal blank for making a cylindrical box with a diameter of 1 inch and a height of 2 inches.

Cylindrical Box - Blank

Sheet metal blank for making a cylindrical box with a diameter of 1 inch and a height of 2 inches.

An illustration of a sphere inside of a cylinder with radius/diameter labeled. Illustration for showing how volume is found.

Sphere Inside of Cylinder.

An illustration of a sphere inside of a cylinder with radius/diameter labeled. Illustration for showing…

Right circular cylinder with a radius of 1 foot and a height/altitude of 2 feet.

Right Circular Cylinder With 1 ft. Radius and 2 ft. height.

Right circular cylinder with a radius of 1 foot and a height/altitude of 2 feet.

An illustration of a prismatoid with 2 circular bases.

Prismatoid With 2 Circular Bases

An illustration of a prismatoid with 2 circular bases.