There were no coupling rods.
While coupling or uncoupling vehicles..
In these the central bar which connects the two end links has screw threads cut upon it,;and by means of a lever can be turned so as either to shorten the coupling and bring the vehicles together till their buffers .are firmly pressed together, or to lengthen it to permit the end link to be lifted off the hook.
- Automatic Coupling for Freight Cars (U.S.A.).
The knuckle stands open until the coupling is pushed against another coupling, when the two hooks turn on their pivots to the position shown in fig.
In the Ayrton and Perry transmission dynamometer or spring coupling of this type, FIG.
Witt (Ber., 1877, 10, p. 656), is obtained by coupling phenyl diazonium chloride with meta-phenylene diamine.
Hence there are advantages in employing a very loose coupling.
The use of automatic couplers for freight cars throughout the United States, introduced in 1893-1900, greatly reduced the number of deaths and injuries in coupling, and the use of air brakes on freight cars, now universal, has reduced the risk to the men by making it less necessary for them to ride on the roofs of high box-cars, while at the same time it has made it possible to run long trains with fewer men; but except in these two features the freight service in America continues to be a dangerous occupation.
In the first case all the driving is done on one or at most two axles, sufficient tractive force being obtained by coupling these axles when necessary to others carrying heavy loads.
This coupling gear is placed centrally between a pair of buffers; formerly these were often left " dead " - that is, consisted of solid prolongations of the frame of the vehicle, but now they are made to work against springs which take up the shocks that occur when the wagons are thrown violently .against one another in shunting.
but the great majority of couplings remain non-automatic. It may be pointed out that the general employment of side buffers in Europe greatly complicates the problem of designing a satisfactory automatic coupling, while to do away with them and substitute the combined buffer-coupling, such as is used in the United States, would entail enormous difficulties in carrying on the traffic during the transition stage.
The great novelty in the ampere balances of Lord Kelvin was a joint or electric coupling, which is at once exceedingly flexible and yet capable of being constructed to carry with safety any desired current.
The latter on reduction yields a diamino compound, the disulphonic acid of which on diazotization and coupling with a phenol, &c., gives valuable substantive cotton dyes after the type yielded by Benzidine.
twice the length of the way; the set is returned in bye, by reversing the engine, casting loose the main, and coupling up the tail drum, so that the tail rope is wound up and the main rope paid out.
One drum is usually fixed to the shaft, while the other is loose, with a screw link or other means of coupling, in order to be able to adjust the two ropes to exactly the same length, so that one cage may be at the surface when the other is at the bottom, without having to pay out or take up any slack rope by the engine.
They may be prepared by the reduction of nitro compounds in alkaline solution (using zinc dust and alkali, or a solution of an alkaline stannite as a reducing agent); by oxidation of hydrazo compounds; or by the coupling of a diazotized amine and any compound of a phenolic or aminic type, provided that there is a free para position in the amine or phenol.
Alkylated amino-azo-benzenes are also known, and are formed by the coupling of diazonium salts with alkylated amines, provided they contain a free para.
Zincke found that the products obtained by coupling a diazonium salt with a-naphthol, and by condensing phenylhydrazine with a-naphthoquinone, were identical; whilst Meldola acetylated the azophenols, and split the acetyl products by reduction in acid solution, but obtained no satisfactory results.
Para-oxyazobenzene (benzene-azo-phenol), C 6 H 5 N: N (1) C6H4 011(4), is prepared by coupling diazotized aniline with phenol in alkaline solution.
The coupling which immediately takes place demands careful attention; the males are afterwards thrown away, and the impregnated females placed in a darkened apartment till they deposit their eggs.
In this way, by coupling together an ordinary pendulum about 3 ft.
As an example of circular shifting may be cited the motion of the coupling rod, by which the parallel and equal cranks upon two or more axles of a locomotive engine are connected and made to rotate simultaneously.
The coupling rod remains always parallel to itself, and all its points describe equal and similar circles relatively to the frame of the engine, and move in parallel directions with equal velocities at the same instant.
Coupling of Parallel AxesOldhams CouplingA coupling is a mode of connecting a pair of shafts so that they shall rotate in the same direction with the same mean angular velocity.
If the axes of the ~ shafts are in the same straight line, the coupling consists in so connecting their the same straight line combinations of contiguous ends that they shall rotate as one piece; but if the axes are not in C
A coupling (~ for parallel shafts which acts by sliding c contact was invented by Oldham and is represented in fig.
Oldhams coupling may be used with advantage where the axes of the shafts are intended to be as nearly in the same straight line as is possible, but where there is some doubt as to the practibility I or nermanency of their exact continuity.
Coupling of Parallel Axes.Two or more parallel shafts (such as those of a locomotive engine, with two or more pairs of driving wheels) are made to rotate with constantly equal angular velocities by having equal cranks, which are maintained parallel by a coupling-rod of such a length that the line of c000exion is equal to the distance between the axes.
Coupling of Intersecting AxesHookes Universal Joint.
Then, from the principles of 60 it is evident that at each instant ai/ai = ai/aa, and consequently that ai; so that the fluctuations of angular velocity ratio caused by the first coupling are exactly neutralized by the second, and the first and last shafts have equal angular velocities at each instant.
Coupling together these ideas he was finally enabled to prove that the propagation of electric and magnetic force takes place through space with a certain velocity determined by the dielectric constant and the magnetic permeability of the medium.
Plato (Theaetetus, 15 2 E) puts him at the head of the masters of comedy, coupling his name with Homer and, according to a remark in Diogenes Laertius, Plato was indebted to Epicharmus for much of his philosophy.
The new administration, notwithstanding Mr Gladstone's public utterances, declared their intention of retaining British sovereignty in the Transvaal, coupling with that decision a pious hope for the speedy accomplishment of confederation so as to allow of free institutions being given to Natal and the Transvaal.
I am not aware of any coupling between a werewolf and vampire throughout history.
In particular, the coupling (e.g. air, air bellows, pliable foam etc.) between the transducer and tissue will be investigated.
V. cholerae builds only one flagellum per cell, suggesting that there must be a close coupling between flagellum biogenesis and cell division.
biosensor technology will be in coupling it to whole body imaging.
Drop Head buckeye coupling A buckeye coupling that can be lowered to reveal a standard hook for a screw or three link type coupling.
calculation of a coupling coefficient takes a small fraction of a second.
capacitive coupling: the circuit diagram is given below.
The first is the coupling (mainly capacitive) between the primary and secondary windings on the transformer.
To prevent the transformer forming a DC short across the supply, an AC coupling capacitor is included.
Some, such as the coupling shot are amazingly clever, but very difficult to master.
The ceramic particles in dental restorative composites are coated with a silane coupling agent to improve their adhesion to the resin matrix.
Current and future studies will investigate neurovascular coupling over a broad range of stimulus parameters and cortical areas.
Having a high input impedance means it only takes very little capacitive coupling to get a reading.
Subject: viscous coupling Posted on: 04/09/2006 How do you determine if the fan viscous coupling is done for?
This type of receiver inset provides inductive coupling to certain types of behind the ear ' hearing aid.
coupling capacitor is included.
coupling coefficient takes a small fraction of a second.
coupling rods were then fitted back on the wheels.
coupling constants are often denoted by the lower case Greek letter alpha, alpha with some specializing subscript.
coupling reaction, 21, was isolated and structurally characterized.
coupling mechanism was first proposed by Peter Mitchell, who was awarded the Nobel Prize for Chemistry in 1978.
coupling between the two coils is represented by the factor k. There are clearly several variables in this arrangement.
Atomic chlorine, being heavier, exhibits stronger spin-orbit coupling.
The effect is known as spin-spin coupling or spin-spin splitting.
Dr. Niall MacFarlane (University of Glasgow) Common interest: Effects of reactive oxygen species on excitation-contraction coupling.
The mechanisms by which nuclear hyperfine coupling arises for radicals in fluid solution should be understood.
The essence of the research was using powerful statistical techniques to search for potential ocean-atmosphere coupling in both modeled and observational data.
electromechanical coupling in relaxor ferroelectrics Prof. Ron E. Cohen, Carnegie Institution of Washington.
excitation contraction coupling.
Theory of Condensed Matter Origin of large electromechanical coupling in relaxor ferroelectrics Prof. Ron E. Cohen, Carnegie Institution of Washington.
flywheel speed through the eddy current coupling.
We will place an order for the missing coupling rod forgings and other parts will have to be purchased.
gimbal structure were constructed specially to provide rigid coupling between the motion generator and the animal.
In quantum gravity, the role of the gage coupling, is played by the energy of a particle.
We will then show that perceptual grouping influences the coupling of action.
Coupling of hydraulic hysteresis and stress-strain behavior in unsaturated soils.
flow variability in the Scandinavian ice sheet: modeling the coupling between ice sheet flow and hydrology.
Indeed, Morris seems particularly intent to depict casual coupling with a variety of gender variations.
intermediate in the oxidative coupling reaction, 21, was isolated and structurally characterized.
Both mechanisms are shown to prefer globally synchronous states for slow synapses as long as the strength of coupling is sufficiently large.
On the other hand, the rotating transformer provides only magnetic coupling between the moving parts.
perceptual grouping influences the coupling of action.
PVC pipe coupling, which allows me to stick it on the end of the microscope tube.
reciprocity relationship or symmetrical coupling between all energy modes.
The coupling rods were then fitted back on the wheels.
rotator assembly and gimbal structure were constructed specially to provide rigid coupling between the motion generator and the animal.
All door handles are complete and working, roof has a few minor scratch scratch and chip marks, one coupling lock missing.
Several hypothetical scenarios that could provide a coupling between regional seismicity and reservoir hydraulics are proposed and evaluated.
self-sealing female coupling with protective cap is fitted to the adjacent hose end for the air supply connection.
In the quiet, one-room shanty, the clatter of metal on metal sounded like freight cars coupling as she chambered a bullet.
symmetrical coupling between all energy modes.
thermoelectric coupling effects can also be considered.
The hydraulic torque converter is an extension of the principle employed in a hydraulic coupling.
For functional studies we reconstitute purified enzyme into liposomes, to analyze coupling between electron transfer and proton translocation.
trident system as our testing ground for the ACE and aza-ACE methodology in order to assess coupling selectivities.
uncoupleid not, however, interfere with him coupling and uncoupling trucks on occasions.
Two photonic crystal waveguides (PCWs) are separated by a row of rods in order to prevent mode coupling.
It enables coupling to thin (» 250nm) silicon waveguides.
Coupling Rod These couple driving wheels of the same size together to spread the tractive effort over the coupled wheelbase.
However, the matching is achieved by ' inductive coupling ' via internal windings that are sealed within the central element.
If the two circuits are in tune so that the numerical product of capacity and inductance of each circuit is the same or C L, = C L +CL and if k is the coefficient of coupling then the natural frequency of each circuit is n = I /2w / (CL), and when coupled two oscillations are set up in the secondary circuit having frequencies n and n2 such that n = n0/ (i - k) and n = nh,/ (I +k).
It is seen that as the coupling k becomes small these two wavelengths coalesce into one single wave length.
p. 670) that the velocity of formation of the amino-azo compound depends only on the nature of the reagents and not on the concentration, and that in coupling the hydrochloride of a tertiary amine with diazobenzene suiphonic acid the reaction takes place between the acid and the base set free by the hydrolytic dissociation of its salt, for the formation of the amino-azo compound, when carried out in the presence of different acids, takes place most rapidly with the weakest acid (H.
The weak coupling in this example puts a further strain on the reader.
I got a piece of pvc pipe coupling, which allows me to stick it on the end of the microscope tube.
It is also consistent with Onsager 's reciprocity relationship or symmetrical coupling between all energy modes.
A self-sealing female coupling with protective cap is fitted to the adjacent hose end for the air supply connection.
Cutting a longer slot in the socket end of the coupling solved the speed hump problem.
May 30 2003 A view of the coupling rod bearing arrangement and also the speedometer drive on 3.1192.
Problems with thermoelectric coupling effects can also be considered.
We have used the trident system as our testing ground for the ACE and aza-ACE methodology in order to assess coupling selectivities.
This did not, however, interfere with him coupling and uncoupling trucks on occasions.
Coupling the amount of people interested in the field with the small amount of open roles, it can sometimes seem harder than it is worth to get a role in acting.
Over the past few months, a maelstrom of rumors have been flying about concerning the coupling of Heroes stars Hayden Panettiere and Milo Ventimiglia.
Coupling an entry process similar to Juliard's (requiring entry exams, auditions and other tests), Yale has now become known for its music program.
Coupling these guidelines with your company's particular corporate culture will help you avoid any career-derailing inappropriate business attire.
Members of the Extra Care Customers Rewards Program can save even more when coupling card discounts along with coupons.
This may be disturbing for retirees who grew up in a different era, i.e. before language became more vulgar and invitations for coupling more explicit.
Love this look for its successful coupling of subdued color (grey) and its bold statement of monochrome simplicity.
Use the pre-match tag screens (exhibition is best) to determine the viability of the coupling.
Each delicate and dazzling coupling of diamonds with platinum or gold creates a ring that symbolizes a future promise of love and life together.
Coupling the influences of each calendar together, the Mayan shamanic priests foresaw many events throughout time.
During her tenure, soap operas achieved their zenith in popularity, particularly her coupling with co-star Anthony Geary, the actor who portrays Luke Spencer on the show.
Coupling the best of both Swiss and German engineering, a Stowa watch can handle depths of beyond 3,300 feet.
Coupling words with a gentle caress or lifting her into his arms and carrying her to their bedroom never failed to excite her.
Once in a while they did things together socially, usually to fulfill mandated coupling at necessary functions and seldom for the entertainment of either.
A coupling collar, tapped in the same manner, is screwed on, and causes the conical edge to impress itself tightly on the flat end, giving a sound and lasting joint.
To keep the load level, there are various devices for automatically coupling the jibraising and the load-lowering motions.
In the case of the inductive mode of exciting the oscillations an important quantity is the coefficient of coupling of the two oscillation circuits.
If L and N are the inductances of any two circuits which have a coefficient of mutual inductance M, then M/-/ (LN) is called the coefficient of coupling of the circuits and is generally expressed as a percentage.
If the direct coupling is adopted then the lower end of the antenna is connected directly to the condenser circuit.
Braun showed that oscillations suitable for the purposes of electric wave creation in wireless telegraphy could be set up in a circuit consisting of a Leyden jar or jars, a spark gap and an inductive circuit, and communicated to an antenna either by inductive or direct coupling (Brit.
The common form of non-automatic coupler, used in Great Britain for goods wagons, consists of a chain and hook; the chain hangs loosely from a slot in the draw-bar, which terminates in a hook, and coupling is effected by slipping the =chain of one vehicle over the hook of the next.
The coupling is effected by firmly clamping the ends of the beams upon the top and bottom respectively of a loop of watch - spring, which is tightly stretched round the casting carrying the pan, as is shown in the end view in fig.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.