verb

definition

To exchange two things, with both parties giving one thing and taking another thing.

definition

To give something else in response (where the "thing" may also be abstract, a feeling or action) To make a reciprocal gift.

example

I gave them apples from my tree; they reciprocated with a pie and some apple jelly.

definition

To move backwards and forwards, like a piston.

example

A reciprocating engine.

definition

To counter, retort or retaliate.

adjective

definition

That moves backwards and forwards.

Examples of reciprocating in a Sentence

An excellent brake for very large cranes is Matthew's hydraulic brake, in which water is passed from end to end of cylinders fitted with reciprocating pistons, cooling jackets being provided.

It is also the custom to balance a proportion of the reciprocating masses by balance weights placed between the spokes of the wheels, and the actual balance weight seen in a driving-wheel is the resultant of the separate weights required for the balancing of the revolving parts and the reciprocating parts.

The pumps, placed close to the point where the water accumulates, may be worked by an engine on the surface by means of heavy reciprocating rods which pass down the shaft, or by underground motors driven by steam, compressed air or electricity.

In the first method reciprocating bells, or piston machines, or rotary machines of varying capacity like gas-works exhausters, are employed.

With the exception of the addition of a pin-hole to the tangent sight and cross wires to the fore-sight, and of minor improvements, and Field of the introduction of French's crossbar sight and the artillery reciprocating sight, of which later, no great advance was sights.

To keep the strands from directly overlaying each other and so adhering, the last guide through which the silk passes has a reciprocating motion whereby the fibre is distributed within certain limits over the reel.

Bobbins to the number of strands which are to be twisted into one are mounted in a creel on the doubling frame, and the strands are passed over smooth rods of glass or metal through a reciprocating guide to the bobbin on which they are wound.

The spinning or throwing which follows is done on a frame with upright spindles and flyers, the yarn as it is twisted being drawn forward through guides and wound on revolving bobbins with a reciprocating motion.

Ordinary reciprocating pumps were commonly employed, and also air lifts and similar devices for raising great quantities of water to a height of from 20 to so ft.

Shifting in a straight line is usually reciprocating; that is to say, the piece, after shifting through a certain distance, returns to its original position by reversing its motion.

When a continuous motion of the driver produces a continuous motion of the follower, forward or backward, and a reciprocating motion a motion reciprocating at the same instant, the directional relation is said to be constant.

When a continuous motion produces a reciprocating motion, or vice versa, or when a reciprocating motion produces a motion not reciprocating at the same instant, the directional relation is said to be variable.

Wrapping connectors for communicating reciprocating motion have usually their ends made fast to the pulleys or drums which they connect, and which in this case may be sectors.

Eccentric.An eccentric circular disk fixed on a shaft, and used to give a reciprocating motion to a rod, is in effect a crank-pin of sufficiently large diameter to surround the shaft, and so to avoid the weakening of the shaft which would arise from bending it so as to form an ordinary crank.

An eccentric may be made capable of having its eccentricity altered by means of an adjusting screw, so as to vary the extent of the reciprocating motion which it communicates.

Reciprocating PiecesStrokeDead-P o-jnts.T he distance between the extremities of the path of the connected point in a reciprocating piece (such as the piston of a steam-engine) is called the stroke or length of stroke of, that piece.

When it is connected with a continuously turning piece (such as the crank of a steam-engine) the ends of the stroke of the reciprocating piece correspond to the d.ead-points of the path of the connected point of the turning piece, where the line of connection is continuous with or coincides with the crank-arm.

Other forces besides gravity may be used as reciprocating forces for storing and restoring energyfor example, the elasticity of a spring or of a mass of air.

Using this principle the method of finding the balance weights to be added to a given system of reciprocating weights in order to produce a system of forces on the frame continuously in equilibrium is exactly the same as that just explained for a system of revolving weights, because for the purpose of finding the balance weights each reciprocating weight may be supposed attached to the crank pin which operates it, thus forming an equivalent revolving system.

The balance weights found as part of the equivalent revolving system when reciprocated by their respective crank pins form the balance weights for the given reciprocating system.

The moving parts of the engine are then divided into two complete and independent systems, namely, one system of revolving weights consisting of crank pins, crank arms, &c., attached to and revolving with the crank shaft, and a second system of reciprocating weights consisting of the pistons, cross-heads, &c., supposed to be moving each in its line of stroke with simple harmonic motion.

The balance weights are to be separately calculated for each system, the one set being added to the crank shaft as revolving weights, and the second set being included with the reciprocating weights and operated by a properly placed crank on the crank shaft.

Balance weights added in this way to a set of reciprocating weights are sometimes called bob-weights.

In practice about two-thirds of the reciprocating weight is balanced in order to keep this variation of rail pressure within safe limits.

The conditions regulating the balancing of a system of weights reciprocating under the action of accelerating forces given by the above expression are investigated in a paper by Otto Schlick, On Balancing of Steam Engines, Trans, Inst.

Dalby, On the Balancing of the Reciprocating Parts of Engines, including the Effect of the Connecting Rod (ibid., 1901).

These two principles are defined as reciprocating, for the flat bed which travels backwards and forwards; and rotary, for that which continuously revolves or rotates.

Konig's invention was a reciprocating one.

It was once thought that the finest work could not be produced by a cylinder impressing a surface in the progress of its reciprocating motion, but that it was likely to give a slurred or blurred impression.

The type bed travels with a reciprocating motion upon rollers or runners made of steel, the bed being driven by a simple crank motion, starting and stopping without much noise or vibration.

This revolves with the run of the machine and at the same time has a slight reciprocating action which helps the distribution.

Although the two-type beds have a reciprocating motion, as in the ordinary one-sided press, the two cylinders rotate towards each other.

The two-revolution machine is another one-cylinder machine built on the reciprocating principle.

The principle of the two-revolution press is that the cylinder always rotates in the same direction, and twice for each copy given, once for the actual impression, and again to allow of the return of the forme-carriage in its reciprocating action.

Among other advantages claimed for this press one is that the movement which governs the action of the type bed in reversing is so arranged that the strain which sometimes occurs in other reciprocating machines is considerably reduced; another is that the registering or correct backing of the pages on the second side in printing is uncommonly good; but this depends much upon the layer-on.

The two-colour machine is generally a single cylinder (fig..8) with one feed only, and the bed motion reciprocating.

Before leaving the subject of printing with the reciprocating bedmotion, it may be mentioned that although in all modern machines of that kind the printed sheet is self-delivered, the imprinted paper has generally been fed in by hand, and for some classes of work this is still done.

As distinct from flat bed printing with a reciprocating motion, printing on rotary principles is a most interesting study, and it is Rotary this department of printing mechanics which has developed so very much in recent years.

In some the rakes are attached to rigid frames, with a reciprocating motion, in others to cross-bars moved by revolving chains.

The posterior margin of the wing is made to rotate, during the down stroke, in a direction from above downwards and from behind forwards - the anterior margin travelling in an opposite direction and reciprocating.

It is in this way that weight forms a factor in flight, the wings and the weight of the body reciprocating and mutually assisting and relieving each other.

A vertical movement having been communicated by means of india-rubber in a state of torsion to the roots of the wings, the wings themselves, in virtue of their elasticity, and because of the resistance experienced from the air, twisted and untwisted and formed reciprocating screws, precisely analogous to those originally described and figured by Pettigrew in 1867.

At the same time the rebate on goods from Great Britain and reciprocating colonies was increased.

After 1879 he divided his time between London, Cannes and Tegernsee in Bavaria, enjoying and reciprocating the society of his friends.

The tank is filled with water, which is kept in agitation by means of a reciprocating paddle or piston; in this way the air escapes, and with proper care a block of great transparency is produced.

Reciprocating engines uniformly produce much more carbon monoxide in their exhaust than the modern jet engine.

Like elsewhere in East Asia, screw type chillers are taking market shares from reciprocating.

Thus there would be a yearly energy saving of around £ 140,000 with reciprocating compressors.

These focus on the future of HFC's and the respective virtues of reciprocating versus scroll compressors.

There was a total of nine cases (16 %) in which reciprocating aircraft engines either stopped completely in flight or lost power.

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