US720979A - Meter. - Google Patents

Description

PATENTED FEB. 1'7, 1903.

'W. STANLEY.

METER. Arrum nou FILED APR. 5.1902.

3 8HEBTS-SHEET 1.

no Mean.

N0. 720,979 PATENTED FEB. 17, 1903. W. STANLEY.

METER.

v APPLIGATIGN FILED APR; 5, 1902.

H0 MODEL. 3 S HEETSSHEET Zr W. i i (5 5 3&3 ibbon 1121;

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No. 720,979. PATENTED'FEB. 17, 1903.

W. STANLEY.

METER.

APPLICATION FILED APR. 6, 1902.

N0 MODEL. 3 SHEBTS SHEET 8.

UNITED STATES PATENT OFFICE.

WILLIAM STANLEY, OF GREAT BARRINGTON, MASSACHUSETTS, ASSIGNOR TO STANLEY INSTRUMENT COMPANY, OF GREAT RARRINeToN, MASSA CI-IUSETTS, A CORPORATION OF MASSACHUSETTS.

, METER.

SPECIFICATION forming part of Letters Patent No, 720,979, dated February 17, 1903.

Application filed April 5,1902. Serial No- ].OLBBZ. [No model.)

To aoZ-Z whom it mag/ concern: the revolving shaft I, engages at intervals, so U Be it known that I, WILLIAM STANLEY, a as to lift the detent out of engagement with citizen of the United States, residing at Great the teeth of the wheel G. This shaft I also Barrington, in the county of Berkshire, State has "a projection j, of conducting material,

5 of Massachusetts, have invented certain n'ew which twice during each revolution makes and useful Improvements in Meters, of which contact with the springs j 5' temporarily the following is a full, clear, and exact de- .short-circuitingan actuating-magnet,hereinscription. after described, and also the shunt-coil B.

My invention relates to meters for Ineasur- This shaft I carries also a wheel K, which is [0 ing the energy of electric currents of either engaged by a pawl 70, attached to the springthe continuous or alternating type, and has retracted armatureL of the magnet M. This for its object to produce a simple and accumagnet M is intermittently energized, thus rate measuring device that can be easily made moving the armature L and pawl 7r backward and installed and in which there are no deli-' and forward, so as to revolve the wheel K.

15 cats parts which will quickly break down, as The wheel G is also engaged by a pawl 71.,

is the case in many so-called meters in use which is attached to an armature N of the 3.0-

at the present time. mating-magnet 0. This magnet is also in- It consists, essentially, of a dynamometer, termittently energized, and, together with the a time-beater, and means controlled by said spring it, moving the pawl a back and forth 2o time-beater for integrating the energy indicauses the wheel G to rotate. The intermitcations during short periods, and is very tent movements of the magnets M and Oare 7o closely accurate, since the energy passing durcaused by the time-beater P, which is always ing anyone of most of such short periods is in motion and causes the current to pass substantially constant. through the coils on these magnets or shunts 25 Referring to the drawings, Figure 1 is a itaround them,as hereinafterdescribed. The

front view of the meter. Fig. 2 is a side elemagnet O is also controlled by the shunt-coil vation of the same. Fig. 3 is asectional view B, which when in its central position throws on the line X X of Fig. 1. Fig. 4 is a detail the magnet out of action, but when in contact view of the time-beater. Fig. 5 is a detail of with the conducting-stop C, as is the case 0 the same. Fig. 6 is a detailview of an actuwhen any current is passing through the seating-magnet. Fig. 6 is a detail view of its ries coils A, throws it into action. armature. Fig. 7 is a diagram of circuits. The time-beaterPis shown in detailin Fig. Fig. 8 shows a detail. at and consists of an armature 0, carried by a Referring more particularly to the drawrotatable shaft Q, mounted in bearings q if. 5 ings, Ais the series coil, through which passes This shaftalso carries a small balance-wheel the current to be measured. R and a spring 7*, tending to keep it in such B is a shunt-coil, the coils A and B forming a position that the armature p is slightly out a dynamometer. The coil B is mounted so of aline nent with the iron frame S. It also as to swing on the pivots hi) and is restrained has an iron disk S, which acts to distribute 0 from anyconsiderable movement by the stops the magnetism to the frame S. About the O O. This coilB carries two depending arms iron shaft Q is a coil T, wound on a Copper D D, which are connected to volute springs bobbin U, which is in series with the shunt- E E, whose inner ends are fastened to the coil B. The shaft Q also carries .a small shaft F. This shaftF is journaledat ff and cam V, which makes and breaks contact with 45 carries a wheel G, having very fine teeth in the forked spring lVduring each oscillation,

its periphery, about two hundred to the inch. thereby intermittently energizing and short- 5 Engaging with these teeth is a detent H, which circuiting the coil T and the coils of the magis retracted by the spring h and has an exnets Maud O. The short-circuiting and contension 72., with which a cam t, mounted on sequent deenergizing exist at the beginning and end of each oscillation. The open-circuiting, by reason of a slight movement of the spring W about its axis to, due to the action of the cam V on the preceding oscillation, takes place only during the latter part of each first half-oscillation. The movementis limited by the stop w between the arms of the spring W. The intermittent energizing of the coil T by intermittently magnetizing the elements S and 19 keeps the shaft Q, with its armature and cam V, oscillating, and also keeps armature L and its pawl moving all the time. It also keeps the armature N of the magnet 0, together with its pawl, moving, except when the position of the shuntcoil B prevents it. The shunt-coil B controls the action of this magnet by making contact with the conducting-stop O, and thus shortcircuiting one of two opposing coils o 0 which are wound in opposite directions on the core of that magnet, the stop C being connected by the conductor 0 to the point between said opposing coils.

X is the integrating-train, which is actuated by a pawl w,also mounted on the armature N, so that whenever that armature is permitted to be operated by the position of the shunt-coil B it revolves the wheel G and also moves the integrating-train.

Referring to the diagram of circuits in Fig. 7, A represents the series coils; B, the shuntcoil; 0, the conducting-stop,and c the conductor, short-circuiting the coil 0 when the shunt coil engages with O. magnet. M is the magnet which actuates the mechanism for releasing the detent H and short-circuits the shunt-coil B at the end of stated periods. P is the timebeater, which, with its cam V and fork W, at every oscillation by short-circuiting the magnets M and 0 and its own coil T energizes and denergizes them so that they perform their respective functions. Y is a resistance in thearmature-circuitto keep the current down. Z and Z are the mains supplying energy to the translating devices in series with the coils A.

The operation of the device is as follows: The time-beater P is oscillating all the time and causing current to pass intermittently through the coils on magnetsM and 0. When current flows through the shunt-coil B and the series coil A, lamps being in circuit, the shunt-coil moves into contact with 0, com pressing the springs E E. The contact with C short-circuits the opposing coil 0 of the magnet O, causing said magnet to be polarized and to actuate its armature, which in turn actuates its pawl and causes the wheel G to slowly rotate against the thrust of the springs E E. When the springs are so wound up as to overcome the torque due to the currents in the coils A B, the coil B breaks away from the stop G, thus depolarizing the magnet 0 and stopping the wheel G, which remains fixed until at the end of an indicating period the magnet M has actuated its mech- O is the integratingsame time short-circuited by the projection j A engaging with the terminals j and j swings to its central position. As soon as project-ion j breakscontact the coil 13 is again energized and the mechanism operates as before. Since the armature N also actuates the integratingtrain, that train will be moved during each interval marked by the time-beaters release of the detent H an amount corresponding to the energy consumed during that interval, assuming that the rate of consumption will remain unchanged during such interval except in a few negligible instances. In this way the device furnishes an accurate measuring and recording instrument of the energy passing.

I have shown the detent I-I released by a separate magnet rather than directly by the action of the time-beater itself, since this relieves the time-beater of all work or' duty other than the mere energizing and denergizing of a portion of the circuit.

Various modifications may be made in the device without departing from the spirit of myinvention. When used with alternating currents, care must be taken to laminate the iron cores and to prevent the formation of eddy-currentssuch, for instance, as in the copper bobbin U, which in such case may well be dispensed with.

The method herein described is claimed. in another pending application, Serial No. 115,815, filed July 16, 1902.

What I claim is 1. In a meter, the combination of a dynamometer, a time-beater, and an integratingtrain actuated by said time-beater.

2. In a meter, the combination of a dynamometer, a time-beater, an integrating-train actuated thereby, said time-beater having an exciting-coil, and means for periodically making and breaking a shunt-circuit around said coil.

3. In a meter, the combination of a dynamometer, a time-beater having an excitingcoil and an integrating-train electrically actuated thereby, said time beater having means for periodically energizing and denergizing its exciting-coil and producing electric impulses for electrically actuating said train.

4. In a wattmeter, the combination of a time-beater for producing a given value of motion in a given time, an electrodynamometer for periodically expressing by its torque the value of energy transmitted through it and an integrating system recording the sum of the torque values developed by the dynamometer in terms of time.

5. In a meter, the combination of a dynamometer, a time-beater mechanism for marking indicating periods, and an integrating mechanism, actuated and controlled by said time mechanism and dynamometer, to inte= spring-restrained oscillating portion, wind ings for energizing said magnetic circuit and 7 means for periodically short-circuiting said windings, and an'integrating train, actuated and controlled by said dynamometer and time-beater so as to integrate during each indicating period an amount proportional to the dynamometer torque during such period.

7. Ina meter the combination of a dynamometer, a time-beater in a shunt across the mains, an integrating-magnet actuated by said time-beater and controlled by said dynamometer.

8. In a meter in combination, a dynamometer and a time-beater, an integrating-magnet actuated by said time-beater and controlled by said dynamometer, a second magnet actuated by said time-beater to mark the periods within which integration is made.

9. In a meter in combination, a dynamometer, a time-beater, an integrating-magnet and a period-making magnet said magnets being actuated by said time-beater.

10. In a meter in combination, a dynamometer, a time-beater, an integrating-magnet controlled by said dynamometer and actuating a pawl to overcome its torque, a releasemagnet operating to restore the elements to their normal relation, said magnets being actuated by said time-beater and an indicating mechanism operated by said integratingmagnet.

12. In a meter, the combination of the series coil A, the shunt-coil B, an integrating-magnet O actuating a spring-restrained Wheel, a time-beater-actuating mechanism to periodically release said wheel and restore the parts to normal condition and an integrating train.

13. In a meter, the combination of adynamometer, a time -beater, a mechanism for making periods of integration actuated thereby, and an indicating mechanism indirectly actuated by said time-beater to integrate the energy passing.

14. In a meter in combination, a dynamometer having coils A and B, a time-beater, an integrating-magnet and a marking-magnot all in series with the shunt-coil B, a circuit around the energizing-coils of said devices controlled by the time-beater, a shunt around the shunt-coil B and the integratingmagnet controlled by the marking-magnet, and a shunt around one of two opposing coils upon the integrating-magnet controlled by said shunt-coil. 1

15. In a meter, the combination of an oscillating armature, a spring-actuated wheel, a pawl in engagement therewith and means actuated by said armature for periodically releasing said pawl.

. 16. In a meter, the combination of a shuntcoil, an oscillating armature, a spring-actuated wheel, a pawl in engagement therewith, means actuated by said armature for periodically releasing said pawl and means for shortcircuiting said shunt-coil during the time said pawl is released.

Signed at New York city this 14th day of February, 1902.

WILLIAM STANLEY. Witnesses:

JOHN F. KELLY, J. S. MoDoNALD.

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