DE60071C - Chronometer run with a release spring attached to the balance axis - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The present invention has a significant simplification of the chronometer or rocker gear the object and is characterized by the fact that the straight little gold feather, no longer, as with the previous chronometer gangs, on the rocker or chronometer spring, but is screwed to a block or finger, which rotates between Impulse roller and balance arm or under the impulse roller on the balance axis will.

This much simplified, modified arrangement, the production of the Chronometer gear considerably cheaper.

Fig. Ι shows the basic outline of the simplified chronometer gear, in which the small The gold nib-bearing block is located between the impulse roller and the balance arm; Fig. 2 shows the view of the parts with the gear wheel omitted.

In Fig. 1 the parts are in that position in which the rocker C is raised so high, by the contact of the gold spring e, that the triggering can take place. A is the gear wheel whose tooth α rests on the resting stone c on the rocker. The latter can, since the length and weight of the rocker C are extremely small, stand with its rest surface concentric or radial to the teeth of the gear wheel. The rocker C is formed from a straight but very flat piece of metal, on the tube of which sits on the lower surface, the return spring d is attached. At the front end of the rocker a small upright metal block c ^{1 is} drilled with its pin in such a way that it can be twisted with resistance on the surface of the rocker; The release stone c ^2, which grips over the impulse roller B, is tightly fitted into this metal block and can be pushed forwards and backwards, e is the gold release spring which is attached to a finger E located between the impulse roller B and the balance arm D and rotatably pushed onto the balance axis is screwed on. Said spring e rests with its front end coming into effect with low tension against the pin f which is drilled into the balance arm and protruding downward from the same.

The play of the chronometer gear described above is as follows:

When the disturbance is of what is indicated in the drawing, only the leg D, vibrates in the direction of the arrow, the end of the small at its attachment end sets weaker than at its acting end Gold spring exported, e to the trigger stone c ¹ and raises the Rocker C from its contact pin g so high that the tooth α of the gear wheel A falls off the rest stone c on the rocker. The gear wheel A thus freed moves forward, the tooth α ² lying in front of the teeth α and a 'falling on the stone or finger b on the pulse roller B and the unrest imparting an impulse. When the unrest swings back, the small gold spring e is lifted so far from the contact pin f that it falls off the release stone c ² and thereby enables the rocker C to return to its starting position, so that the rocker now moves

behind α gear tooth α ³ on the rest stone c stays.

The arrangement in FIGS. 3 and 4 shown the chronometer passage which as occurs precisely in activity, as that shown in Fig. 1 and 2, differs from the latter only by the gold spring e-supporting fingers E not DAF as before between pulse roller B and balance arm D, but rotatably slid onto the balance axis below the pulse roller.

From the two basic figures it can be seen that the gold nib e does not stand radially to the balance axis, but passes it obliquely, so that the evasion of this nib is quite imperceptible when it is retracted and takes place almost without resistance.

The simplification of the chronometer operation consists in the fact that the small release roller, which is attached to the balance axis of the chronometer under the impulse roller, completely comes in omission.

Furthermore, the chronometer spring as well as the rocker on the so-called German Chronometer run should be relatively long, in order to attach a correspondingly long gold nib to be able to; they must be done very delicately, so that the parts as possible get light weight; this makes them fragile and difficult to manufacture. The rocker of a chronometer gear is short, very simple and very easy to make, it

consists only of a straight piece of metal.

Setting and setting up the gear is difficult and difficult with chronometers because one cannot overlook the passage and the gold nib for lengthening or shortening has to screw it on and off until the gear is in order.

In my chronometer course, all parts can be determined independently of one another To a large extent are manufactured in a factory-made manner, d. H. the simple rocker with the trigger stone for himself and the restlessness with the gold pen of a certain length. Setting up the Ganges is then simply done by pushing the trigger stone forwards or backwards. the end For these reasons, the chronometer process is significantly simplified and the production cheaper.

Claims (1)

Patent Claim: A chronometer passage whose Auslösungsfederchen (e) by means of a Klöbchens or finger (E) on the balance axis is fixed and which cooperates with a rocker (C), which at its forward end a rotatable stud (c ¹⁾ with a slidably mounted firing stone (c ² ) and at its rear end carries the resting stone (c) resting against the gear teeth with a resting surface that is concentric to the pivot point of the rocker or radial to the center of the gear. 1 sheet of drawings.