DE58485C - Electricity meter - Google Patents

Description

IMPERIAL

PATENT OFFICE.

This electricity meter consists of the following parts:

ι. an ohm-meter, which is arranged in such a way that it measures the resistance of the Circuit of the subscriber (subscriber) if the lamps in this circuit are behind are connected to each other, or when the lamps in this circuit are connected in parallel lie, which gives the conductivity, in such a way that in both cases the indications of the device of the number "of in action, expressed in a chosen unit set lamps correspond;

2. a clock, which measures the time and mediates the duration of the operation of the lamps lets enter;

3. A registration device showing the product of the number of lamps over time calculates and on dials the total number of lamp hours in a given Showing time.

The accompanying drawing illustrates this lamp hour meter.

Fig. 1 is a longitudinal view, Fig. 2 is a plan and Fig. 3 is a vertical section through the clock along the line M * -N * of Figs. 2 and 4; 4 is a horizontal section along the line P ^x -Q * of FIGS. 1 and 3. FIGS. 5 and 6 give a vertical and a horizontal section through the Ohm meter.

7 and 8 show a vertical section and a plan view of the upper end the axis of the clock pendulum.

The ohm-meter contains two fixed coils, which form an angle with each other, the size of which depends on the sensitivity that the device has when the device is small. Wants to give power consumption is chosen. One coil AA ¹ is made of thin wire, offers a great resistance, and is located in a secondary line branched off from the terminals of the circuit of the participant; the strength of the current flowing through this line is at any moment proportional to the potential difference between the terminals.

The other coil BB ¹ is formed by two symmetrical windings B and B ¹ , which are arranged vertically, they are traversed by the current feeding the lamps.

Inside the coil AA ¹ there is a magnetic bar, which is carried by a standing, very easily movable axle, which is shown in Fig. 9 by itself; the equilibrium position of this rod depends on the ratio of the fields of the coils AA ¹ BB ¹ .

Let it be:

N is the number of turns of AA ¹ , R ₁ its resistance,

i is the strength of the current which runs through coil AA ^1,

η is the number of turns of BB ¹ ,

R is the resistance of the circuit of the lamps,

I is the strength of the current in this circuit,

w is the angle of the positive lines of force of the two coils and

α is the acute angle of the magnetic rod with the positive lines of force of the coil A.

If M is the magnetic moment of the rod, then the equilibrium equation applies:
MNi sin U = MnI sin (ω - a).
Regardless of the properties of the rod

Ir

sin α = - sm (u> - a)

sm α

sin

It can be seen from this that the device is constructed in such a way that the angle α is a function

a single variable - is. The location

of the rod depends solely on the conductivity of the circuit of the Lamps off; if the latter are connected in parallel, it is clear that this conductivity is proportional to the (in the selected Unit) is the number of lamps lit. One can therefore use the axis of the equip the movable staff with a pointer that moves over a divided arc and shows the number of lamps that are currently on.

When applying the device to a Stromvertheilung at variable potential and uniform thickness is (series-connected lamps), when η IR the respect to the fine wire known magnitudes, NiR _1, the related to the lamp circuit known quantities .a, the acute angle of the rod with the positive lines of force of the circuit B , equation i) still and gives

NR sin α
¹ η sin (tu - α)

In this case, R _{1 is} obviously proportional to the number of lamps connected in series; this number is represented by the same equation as before; the device can consequently also indicate the number of lamps on a correspondingly divided sheet.

In both cases the angle u> is chosen so that the device is sensitive to the weak currents; it is advisable to fix the coil AA ¹ preferably at an angle of 45 ° to the coil BB ¹ .

The clock consists of an isochronous balance with a standing axis EF, which is formed by the mass HIJ and the spiral spring L.

The weight HIJ has the shape of an interrupted round bar, both ends H and J of which are made of soft iron. In the equilibrium position at a standstill, the end H penetrates somewhat into a coil K , which is attached next to the unrest. The magnetic circuit of this coil is closed externally by means of a sheath of soft iron X , which serves to fix the coil by tightening the screw Y attached to X and by two equal cheeks Z of soft iron, which form the ends of the coil. The coil K is just like the four coils of the under No. 52456 protected apparatus is switched into a secondary line, ¹ which branches off from the poles of the circuit of the participant and goes through the interrupter δ, Fig. 8, which distributes the current to the chronometric motor.

The distribution device, which is carried by an ebonite plate, consists of two sleeves α and. α ¹ , Fig. 1, 7 and 8, which are loose on the upper bearing of the axis EF of the balance. These sleeves are shown in FIGS. 10 and 11 on a larger scale. rods shown. The first, upper sleeve α is carried along by the axis EF by means of a locking pin β, the second, lower α ¹ receives movement from the first sleeve by means of a tooth ε seated on it, which protrudes ^{into a section of α 1.} These two sleeves have opposite the wedge-shaped lug ε of the contact spring respectively a cutout γ respectively. γ ¹ , which, as soon as they coincide, allow the contact at d.

When current passes through the device and there is contact at & , the dissipated current passes through K and the iron H is drawn into K's interior. The unrest makes. first the path 7, FIG. 10, and then takes the sleeve α with it until the edge 1 of the cutout γ lifts the lug φ; At this moment the current circuit at S is interrupted and the unrest goes backwards under the influence of the spiral spring, it makes the path 2-j without taking α with it, then as soon as the pin β hits the other edge of the corresponding recess of α, α is carried along, and the lug φ falls back into y, again establishing the contact at δ; but as a result of the path 2-j it is then the iron J that is drawn into K , and the unrest receives a new impulse until the edge 2 of γ lifts the catch φ and interrupts the Sfromschlufs, whereupon the unrest returns again. The distribution takes place in this way as long as the tooth ε does not take ^{the regulating sleeve α 1 with it.} As soon as this is taken by such an amount that z. If, for example, the edge 1 * of γ ¹ , Fig. 11, comes under the lug φ, the substance which would otherwise have taken place in the backward oscillation is suppressed, because the path 2-j ¹ , Fig. 11, is so great that that the excerpts / undy ¹ not again

Claims (3)

coincide before the edge ι ^{1 of} the Regulirhülse goes backwards; In this way, the two sleeves no longer offer a continuous cut-out to the catch φ and the fabric is suppressed. The sleeve α I call the distribution sleeve and the sleeve a ¹ Regulir sleeve. The current circuit spring provided with the lug φ is carried by a piece of ebonite PQ, Fig. 7 and 8, which is fastened to the disk MiV by means of a screw, which allows the piece PQ a certain amount of play in the direction of the radius, which allows the To regulate depth of penetration of the catch φ in the cutouts γ γ ¹ independently of the tension of the spring. The notch γ of the sleeve α has an important facility, its edges ι and 2 are stepped off and the lifting of the catch φ is effected by the first stage; In this way a slight lifting is achieved, which is just sufficient for the easy approach, whereby, once the restlessness has been set in motion, the catch is always lifted high enough to prevent the formation of (volta 'see) bow prevention. The registration device agrees with that of the patent no. 52456 described energy meter agree, only the contour of the cam is different. The apparatus described in the foregoing has the advantage of reducing the budget of the subscriber to ensure against the changes in the potential of the (central station, since the sum, which the participant has to pay depends solely on the number of lamps, which he puts into service, so he can regulate his expenses according to his will. In order to bring the data of this device into agreement with those of the energy and quantity meter, which devices are used together in the same sector, I have chosen the lamp as the lamp unit, which consumes one hecto-watt at the normal potential of the sector. So you read off hecto-watt hours; the actual meaning of this word is slightly changed to indicate the burning time (l'heure de service) of a lamp, of one hecto-watt. This expression has its correct meaning when the meter is operating at the agreed potential. Pat ε nt claims: ι. An electricity meter in which the resistance or conductivity and so that the consumption of a line in time is summed up by the fact that one of the Main current flowing through and a fixed coil lying in the secondary loop on one Magnets act in such a way that the pointer connected to the magnet does the Management ability respectively indicates the resistance, which information on a register the patent no. 52456 protected species by means of an electrically operated Movement is transferred. 2. The clock mentioned in claim 1, consisting of a fixed coil K and an isochronically oscillating balance E FL with two cores H and J, arranged asymmetrically to the coil K , of soft iron, the cores of which are alternately drawn into the interior of the coil K and to this . We receive a drive for every simple oscillation, in that a symmetrical distributor alternately closes and opens the circuit of the coil K. 3. The symmetrical distributor mentioned in claim 2, which opens and closes the circuit of the coil K at the appropriate time, formed by the contact spring provided with the lug φ and the two notched sleeves α and α and the two on the shaft EF of the unrestlessness α ¹ , which act through the lug φ on the spring d and of which the one α through a pin β from the shaft EF with- . is taken, while the other α ¹ receives its movement through a tooth ε seated on the sleeve α, FIGS. 7, 8, 10 and 11. For this purpose ι sheet of drawings.