What I have said regarding it, however, gives an idea of how a hairspring should be pinned.
If this is a balance pivot, be very careful to see that your balance is true and poised before putting on hairspring and roller.
The hairspring is really a long strip of metal which becomes weakened in its effect when expanded by an increase in temperature and has its power augmented when contraction takes place.
Practically every bit of matter from the Great Brooklyn Bridge to the tiny hairspring in one’s watch is under its imperial domination.
But the most marvelous part of the whole watch is the delicate hairspring and the means of adjusting its tension and compensating for its expansion and contraction with changes of temperature.
If the hairspring expands ever so slightly its power is weakened, but this loss of power is compensated by an ingenious form of balance wheel.
The hairspring is attached at one end to the shaft or staff of the disk F and the other to the frame of the watch.
The hairspring takes up the shock of this intermittent motion and a balance wheel carried by the staff to which F is fastened steadies the oscillatory motion of the lever D.
Without the hairspring the parts would stand still, the escape wheel being blocked by the pallet B.
There are two forms of spring escapement, but as both employ a hairspring and balance-wheel we will glance at these before going further.
You see that slender hairspring of Rosium uncurl and rise, trembling and waving about like a tentacle?
If a watch rates slow in heat compared to cold it is necessary to shift screws in opposite pairs out toward the cut or free end of the rims; because when the metals expand the hairspring becomes weaker and produces a loss in time.
The hairspring however, was found to be pinned at the slow pendant up point as per illustration in Fig.
In this instance the hairspring developed to the left from the collet similar to the illustration shown in Fig.
The hairspring may be true and level but it should be carefully examined to see that there is no possibility of touching at any point.
Investigation found the balance true; hairspring true, level and circle; regulator pins very nearly closed and the motion one and one-eighth turn.
The hairspring should be removed and the pivots known to be straight and polished before testing.
Hairspring concave or convex in form instead of perfectly level.
When rust begins its attack upon any point of a hairspring there will be a constant loss in time until its advance is stopped.
The steel hairspring having no compensating qualities, either grows stronger or weaker with changes in temperature.
The lever in a watch by which the curb-pins regulating the swing of the hairspring are shifted.
Thus the balance receives the power to keep it in motion, swinging it as far as the hairspring allows.
The hairspring then reverses it and swings it until the jewel-pin again starts the lever in the other direction, releasing the escape-wheel from which it receives another "impulse" and so on as long as the mainspring is kept wound.
He made several improvements in watches, the most notable being the Bréquet hairspring still in use in the best watches.
The sizes we have now to look to is to fit the pivot z to the top hole jewel in the cock, also the hairspring seat D and balance seat D'.
The hairspringstud E is of steel, shaped as shown, and comes outlined with the other parts.
As we set the bankings the pallets are all right; but to test matters, let us remove the hairspring and put the balance in place.
A hairspring had to be specially made, inasmuch as a mainspring was too short, the coils too open and, more particularly, did not look well.
The hairspring stud is set in the cock like the Elgin three-quarter-plate movement.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "hairspring" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: counterweight; gyroscope; spring; stabilizer
