As soon as the pallet has left the pin, the impulse arm in its further fall strikes N, which disengages the pall at P and allows the scape-wheel to move on and again wind up the impulse arm CD, which is then again locked by the detent K.
The tooth A of the scape-wheel is resting against the stop or detent a at the end of the pallet CA, from the axis or arbor of which descends the half-fork CP to touch the pendulum.
The work done in unlocking the detent is invariable, as it depends on the pressure of the fly vane at P and is independent of the clock-train.
Each pin as it passes raises an impulse arm CD which is hooked upon a detent K.
A kind of latch whose bolt may be so locked by a detentthat it can not be opened from the inside by the handle, or from the outside by the latch key.
Some makers bend the horn k to a curve and allow the end of the horn to arrest or stop the gold spring; but as it is important the entire detent should be as light as possible, the square end best answers this purpose.
We have previously mentioned the importance of avoiding wide, flat contacts between all acting surfaces, like where the gold spring rests on the horn of the detentat p; also where the detent banks on the banking screw, shown at G, Fig.
We will proceed now to consider briefly the advantages the detent escapement has over all others.
Much of this feeling no doubt is owing to the mechanical difficulties presented in repairing the chronometer escapements when the detent is broken, and the fact that the spring detent could not be adjusted to position.
It is usual to give the detent a locking of about two degrees; that is, it requires about two degrees to open it, counting the center of fluxion of the detentspring E and five degrees of balance arc.
As we are all aware, the detent escapement is used in fine pocket watches, still the general feeling of manufacturers is not favorable to it.
We guarantee that with a detent and spring made as we show, there will be no tendency to cockle, or if there is, it will be too feeble to even display itself.
Suppose we bend the detentspring h so it is curved to the dotted line t, Fig.
The discharging (gold) spring m is attached to the blade i of the detent with a small screw l cut in a No.
The angle of the detentplanes reduces the friction to almost nil.
The angle of the detent planes can be set so as not only to offer no resistance to the unlocking, but to give an actual impulse in the same manner as the impulse pallets of a dead escapement.
The number of strokes depends on the distance which the count-wheel has to revolve before being stopped by the detent F.
In connection with this detent is also another projecting piece, which is carried inside the frame, and when it falls presents a broad surface to a pin fixed in the rim of one of the wheels.
Besides the moving pawl 6 there is a detent pawl 7.
This motion of the rocker arm withdraws the detent pawl from engagement with the segment as well as the moving pawl, and thereby permits the segment to return to its normal position.
When these crystals are warmed, the detent is lifted, and an outflow of light immediately begins.
This is connected with a clockwork and detent arrangement, which simultaneously opens a valve and actuates the lamp flame.
The temperature then rises to the higher limit, when the bending of the thermostatic bar again releases the detent and the clockwork opens the valve and reduces the flame.
On the top of the camera box is arranged another electro-magnet, and a vertical spindle carrying at the top a roughened disk; the electro-magnet being connected with a detent which engages an arm on the vertical spindle.
The detent is then released and allows the vertical spindle to revolve, the power for the purpose being stored in a volute spring connected with the spindle.
When the circuit is closed by tampering with the showcase, the shutter of the camera is opened by the action of the magnet connected with the escapement, and the detent magnet at the top of the box is operated with the shutter.
Page 372] The experiment is made more striking if the marbles are allowed to fall on a lever connected with the detent of a clock alarum, which rings every time a marble falls from one of the rods.
The 15-tooth escape wheel locks on a spring detent and gives impulse to the balance in one direction only, being a conventional chronometer escapement.
It covers a device actuated by a spur on a balance staff to lock the detent against tripping when in one position and to permit normal operation of the chronometer escapement when in the other position (see fig.
That wheel, called the escapement, is so formed, that each tooth catches in succession into a detent fixed on the pendulum near the point of suspension, which allows one tooth to pass at each double vibration.
One of the magnetic needles acted as a detent which held a weight suspended, and when the needle was deflected, the weight fell upon a bell.
An eminent English watchmaker who invented the spring detent escapement and the compensation balance, both essentially the same as are now used in chronometers.
Usually understood to mean a time-keeper fitted with a spring detent escapement.
The driving power is a mainspring acting by a chain on a fusee, and governed by what is known as the Chronometer or Detent Escapement, with, as a rule, the cylindrical balance spring.
In continuous ringing bells of the second class, a detent similar to that shown at Fig.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "detent" in a variety of sentences. We hope that you will now be able to make sentences using this word.
