In the former case the control is generally due to gravity, the plates being so balanced on the knife edge that they tend to take up a certain fixed position from which they are constrained when the electric forces come into play, their displacement relatively to the fixed plates being shown on a scale and thus indicating the P. D.
The magnet is in equilibrium under the influence of the couple VM due to the vertical component V, and the couple due to the fact that the centre of gravity is slightly on one side of the knife-edge.
The chief difficulty with this form of instrument is that it is very sensitive to changes of temperature, for such changes not only alter M but also in general cause the centre of gravity of the system to be displaced with reference to the knife-edge.
- This includes the case of a corn- o, pound pendulum in which the ____________ ______________ knife-edge is replaced by a cylin C drical pin.
the line j oining the end knife edges must be exactly bisected by a line drawn perpendicular to it from the fulcrum knife-edge.
fulcrum knife-edge, and X, Y the knife-edges on which the scales are hung.
The beam is of bronze in a single deep casting, cored out in the middle so as to allow the saddle at the top of the stand to pass through the beam and afford a continuous bearing for the fulcrum knife-edge.
This forms the knife-edge, and the scale-pans are hung from the two projecting ends of the piece of steel.
Therefore for balances of precision the end knife-edges are fixed on the top of the beam so as to present a continuous unbroken knife-edge, and the fulcrum knife-edge is also made continuous, the beam being cored out or cut away to admit of the introduction of the stand bearing.
of acting or efficient knife-edge allowed by the best makers: - I.
The more elaborate ones are made either with a heavy travelling poise to measure the bulk of the load with a light travelling poise for the remainder, or else with a knife-edge at the end of the steelyard, on which loose weights are hung to measure the bulk of the load, the remainder being measured with a light travelling poise.
7 let Z be the fulcrum knife-edge, X the knife-edge on which the load R is hung, and H the centre of gravity of the weights to the right of Z, viz.
the weight, W, of the steelyard acting at its centre of gravity; G, the travelling poise; P, acting at M; and the weights, Q, hung on the knife-edge at Y.
The load is received upon four knife-edges, so that on the average each knife-edge receives only one-fourth of the load, and, as will be seen, it is immaterial whether the load is received equally by the four knife-edges or not, which is essential to the useful application of these machines.
For the above reasons spring balances are nbt in general so accurate as knife-edge machines.
The upper end of this rod is formed into a loop, and this loop pulls upon a knife-edge which is fixed to a short lateral arm rigidly attached to a vertical disk, and this disk turns in bearings formed in the frame of the machine.
These levers are of the Board of Trade, by permission of the Controller carried by knife-edge of H.M.
The charges of coal fall into the hopper with a heavy shock, and in order to save the knife-edges there is a strong pin in each side of the hopper below the knife-edge, which, before the charge of coal is dropped into the hopper, is acted on by a strong horizontal flitch - plate, which heaves the hopper off the knife-edges and relieves them from the shock.
The cam shaft and the cam then begin to revolve, and the flitch-plate is gradually lowered till the knife-edge bearings of the hopper are received on the knife-edges of the main measuring levers, and the load is then weighed by the levers and the spring-balance.
The trucks or other receptacles containing the coal, &c., are drawn upon the platform of the machine, and the pull of the load is transferred by a vertical rod at the left-hand end of the machine to the knife-edge on the short arm of the steelyard, whose fulcrum is carried on bearings in the frame.
Her output includes the much acclaimed Noughts and Crosses trilogy: Noughts and crosses trilogy: Noughts and Crosses, Knife Edge and Checkmate.
It warns that they are walking a knife-edge as over three-quarters of companies now keep a close watch on their staffÃ¢s online behavior.
Overall, 2m households are on a financial knife-edge, and half a million are already having serious difficulties servicing debt.
knife-edge election, Brits vote for its bargain homes... .
knife-edge arÃªte forming the left side of the pinnacle; this is destined to become a minor classic.
knife-edge decision for me.
knife-edge summit ridge.
poised on a knife edge.
David says that he was surprised at how challenging Lhakpa Ri was and commented on the spectacular 50 meter knife-edge summit ridge.
And I don't mean hard on the bottom, slim as a knife-edge type sofas in durable vinyl.
The knife-edge and its bearing are both of steel or agate, and the bearing surface is flat.
And I do n't mean hard on the bottom, slim as a knife-edge type sofas in durable vinyl.
The bolster is there to provide a barrier between your fingers and the knife edge.
The point of the knife rises off the cutting surface when the knife edge is resting on that surface.
If you want a sleek and knife-edge creased look, go for a synthetic blend or a satin or silk combination.
Ruffles and pom-poms will look out of place in an ultra-modern room, just as a plain knife edge might look a little bland in an over-the-top room.
Knife-edge pillows are not uniformly thick.
Usually, the edges of a knife-edge pillow are thinner than the center of the pillow is.
You can easily identify a knife-edge pillow by looking at the seams around the edges of the pillow.
If there is only one seam that holds the front and the back of the pillow together, and the seam runs along the outer edge of the pillow, it's a knife-edge pillow.
The construction is a bit more complex than the construction of a knife-edge pillow; the shape is created using more seams.
Unlike knife-edge pillows, box edge pillows are uniformly thick.
The most minimalist style is the knife-edge.
Obviously ruffled pleats and fancy designs get a bit more complicated, but knife-edge styles are quite simple.
Eternity Rings: Channel and prong settings are available, including a unique knife-edge design using two angled rows of stones.
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.