US1576615A

US1576615A - Electric-current-supplying device

Info

Publication number: US1576615A
Application number: US578016A
Authority: US
Inventors: Paulero Louis
Original assignee: INDUSTRO ELECTRIC TOOLS Inc
Current assignee: INDUSTRO ELECTRIC TOOLS Inc; INDUSTRO-ELECTRIC TOOLS Inc
Priority date: 1922-07-27
Filing date: 1922-07-27
Publication date: 1926-03-16
Anticipated expiration: 1943-03-16

Description

March 16 1926. 1,576,615 L. PAULERO EiLECTRIC CURRENT SUPPLYING DEVICE Filed July 27, 1922 2' Sheets-Sheet 1 3.9 MAMQAAM March 16 1926.

L. PAULERO ELLECTRIC CURRENT SUPPLYING DEVICE Filed July 27. 1922 1 2 Sheets-Sheet 2 I7ZU7ZZOTH lioui; Baulera J2 rne Patented 16, 1926. v STATES PATENT QFFIE. l

EQUIS PAULEBO, OIv PETEBSBUBG, VIRGINIA, ASSIGNOR, TO INDUBTRO-ELECTRIO roons, mg., A CORPORATION OF VIRGINIA.

mCTRIG-OURBENT-BUPPLYING DEVICE.

Application filed July, 1922. Serial Ho 578,016.

To all whom it may concern: Be it known that I, LOUIS PAULERO, a c1t1- zen of the United States, residing at Petersburg, in the county of Dinwiddie and State of Virginia, have invented certain new and is a speci ation.-

This invention relates to improvements in electriccurrent distributing devices for sup plying electric current to translating devices such as electrically operated reciprocating hammers. I

The objects of the invention are, first,,t0

tivel 21 the generator commutator having the our

segments

22, 23, 24 and 25,- and 26 and 27 the brushes co-operatin'g with the commutator 21. The

coils

13, 14, and 16 are connected to the

commutator segments

22, 23, 24 and by wires '28, 29, and 31, and the commutator brushes 26 and 27 are connected to the

field coils

17, 18, 19 and 20 of the generator by

wires

32 and 33, respectively, in the usual well known manner,

For purposes of illustration in Fig. 1 I

\have shown four armature coils and their four corresponding segments in the commutator 21, but it will be understood'that more provide a novel and eflicient means for supof these coils and segments will be used in plying from .a single generator electric curactual practice, 1n accordance with the type rent mpulses to two hammers -or other of stan ard machine selected.

translating devices to operate them at different speeds by supplying a greater number of impulses to 'one hammer than to the other; second, to rovide a means to prevent any material all in voltage when additional hammers or other devices are cut into the circuits operating devices at different speeds from a common generator; and,

third, to provide anovel means to prevent p the leakage of current through a dead segment of a commutator of the switch device at or about the time that the supplyof current to one coil of a hammer or other device is stopped and the supply of current-to. the other coil thereof is started.

The invention consists of theelements and the combinations of them hereinafter described and claimed.- I

In the accompanying drawings, illustrating the invention Fi re 1 is a diagrammatic view showing the e ements of my electric current distrib-- uting device andthe electrical connections thereof.

Figure 2 is a view of the armature of the generator, 'its shaft andthe commutating switch device thereon. I

Figures 3 4 and 5 are transverse sections of the switch device, on lines 33, 4-4 and 55 of Fig, 2, respectively.

Figure 6 1s a longitudinal section through the switch device, on line ;6-6 of Fig. 4.

Referring to the-drawings, 2 designates the frame of the generator, 7, 8, 9 and 10 the magnetic pole pieces, 11 the armature shaft, 12 the armature, .13, 14, 15 and 16 the armature coils, 17, 18, 19 and 20 the shunt windings on the

pole pieces

7, 8, 9 and 10, respec- The construction and o eration of the generator, thus far descri is common and well known and no detailed description thereof is deemed necessary herein.

Mounted on the commutator shaft 11 to 7 turn therewith area collecting ring 34 and

commutators

35 and 36 of a commutating 'switch device for supplying current imulses from the generatorto two

translatmg devices

37 and 38. For purposes of illustration I have shown each translating device as the two coaxial solenoid coils of an electric hammer, 39 and 40 designating the coils of the

hammer

37, and 41 and 42 designating the coils of the hammer 38.

To maintain the proper voltage in the magnetizing circuits hereinafter described which operate the

hammers

37 and 38 or, in other words, to prevert the voltage from dropping whenever the load is put on the generator, I provide the

generator pole pieces

7, 8, 9 and 10 with

series coils

43, 44, 45 and 46, through which the magnetizing current is passed after leaving the generator and before reaching the

hammers

37 and 38,. These series coils are so wound and connected that they supplement the shunt coils in building up the field of the generator, as will be hereinafter described.

The collecting ring 34 is a continuous ring formed of brass or other suitable current conducting material and it is mounted on an insulating bushing 47' on a sleeve 48 which is fixed on the armature shaft 11, and

, the ring 34 is engaged by a brush 49 which The commutator 35 comprises two oppositely-arranged conducting or

live segments

50 and 51, and two pairs of interposed nonconducting or dead segments,'52, 52 and 53, 53, arranged posite to each other between theends of t e

live segments

50 and 51.

. The live se ments each extend around sub- 'oft stantially ninety degrees or one-. uarter of the commutator and the are e ectrically connected by a wire 54. he segments 50, 51, 52 and 53 extend around the bushing 47 and the adjacent ends thereof are slightly separated by interposed plates or ieces of insulating material 55, as clearly s own in Fig. 4. The commutator 35 is engaged by two'brushes 56 and 57 arranged ninety degrees apart around the commutator and suitably mounted on the frame of the generator.

The commutator 36 comprisesa conducting or live segment 58 extending substantiall around ninety degrees or one quarter he commutator and two

dead segments

59, 59 which with insulating plates or pieces 60 interposed between the

segments

58 and 59 and separating them slightly com.- plete the commutator ring. The commutator 36 is engaged by two diametrically

opposite brushes

61 and 62 which are suitably mounted on the generator frame.

It is necessary that the live and dead segments of the two

commutators

35 and 36 be formed of the same or substantially the same metal, and that the brushes co-operating therewith shall rest against the adjacent ends of two segments at the same time, as the segments succeed one another in assing the brushes, for uniform wear. T erefore, to prevent the leakage of current from one coil of 'a hammer to the other coil thereof through a dead segment of either of the

c'ommutators

35 and 36 at or about the timethat the supply of current to one coil of a hammer is stopped and the fsupply of current to the other coil thereof is started,- or at the time the two brushes of either of, the

commutators

35 and 36 change, one to a live segment and the other to a dead segment, I provide the commutator 36 with two dead segments 59', 59' insulated from each other so that current cannot flow throughthem. from one to the other of the

brushes

61 and 62 when the brushes brid e' two pairs of

dead segments

52, 52 and 53,-

53 and insulate. the segments of each pail:-

' from each other for a like purpose of. re-

venting the flow of current through t em fromone to the other of the two

brushes

56 and 57 when they bridge the ends ofa' live segment and the two adjacent'end's' of the two pairs of dead segments.

The commutators 35. and 36 surround the bushing 47 and are slightlyseparated and 49, collecting ring 34, wire 70,- segment 2 insulated from each other and from the collecting ring 34 longitudinally of the arma ture shaft 11 by insulating rings 63 separated b metal rings 64, as shown in Fig. 6. The co ecting ring 34 and

commutators

35 and 36 and their interposed spacing rings are clamped together by and between a co lar 65 formed on one end of the sleeve 48 and a head or collar 66 screwed on to the other end of the sleeve 48, and insulated from the ring 34 and commutator 36 by interposedrings 67 and .68, respectively, of insulating material.

The connections between collecting ring 34 and the

commutators

35 and 36 of the commutating switch device, and between generator commutator 12 are vice to the

hammers

37 and 38 are as fol lows ' The brush 49 is connected to one end of each

coil

39 and 40 of the hammer 37 by a wire 73,:1nd to one end of each coil 41 and 42 of the hammer 38 by the wire 73 and a branch wire 74 leading therefrom. A wire 75 connects the brush 57 and one end of the series coil 43, and a wire 76 connects the other end of the series coil 43 and the end of the hammer coil 39 remote'from. the end thereof connected to the wire 73. A wire 77 connects the, brush 56 and one end of the series coil 45, and a,wire 78 connects the other endof the series coil 45 and the end of'the hammer coil 40-remotefrom the end thereof connected to the wire 73. A wire 79 connects the brush 62 and one end of the sei'ieslcoil 44, and a wire 80 connects the other end of the series coil 44 and the end of the hammer coil 41 remote from the end thereof "connected to the wire 74. A wire 81 connects the brush 61 and one end of the other end of the series coil 46 and the end of the hammer coil 42 remote fromthe end thereof connected to the wire 74.

During the operation of the generator the courses of the current impulses for the translating devices or

hammers

37 and 38 are as follows: p a

For the hammer 37, thecurrent flows 71, so out 51, brush 57 .wire' 75, series coil 43, w re 76, hammer coil 39, wire 73, brus series coil 46, and a wire 82 connects the from the armature 1-2'through wire 28, seg- -ment 22 of the generator commutator, wire of the generator commutator, and back to the armature 12-through the wire 29, during one quarter revolution of the armature 12.

During the next quarter revolution of the armature 12, the current flows through wire '29, segment 23 of the generator commutator,

wire 0, collecting ring 34, brush 49, wire 73, hammer coil 40, wire 78, series coil 45, wire 77, brush 56, segment 50, wire 54, segment 51, wire 71, segment 22 of the generator commutator, and back to the armature 12 through wire 28'. Thus the hammer coils each receive a current impulse for one halfrevolution of the armature. During the fOL lowing one half revolution of the armature 12, the

hammer coils

39 and 40 receive like impulses through the same courses, so that the hammer 37 will receive four impulses during each revolutionof the armature 12. For the hammer 38 the current fliows through. wire 28, segment 22 of the generator commutator, wire 71, segment 51,'wire 72, segment 58-, brush 62 wire 79, series coil 44, wire 80, hammer coil 41,

wires

74 and 73, brush 49, collecting ring 34, wire 70,

segment 23 of the generator commutator, and back to the armature 12 through wire 29, within one half revolution of the armature 12 and while the se cut 58 is passing under the brush 62. Within the next half revolution oijthe armature 12, an'd while the segment 58 is passing under the brush 61, the current flows through wire 28, seg-. ment 22, wire? 1, segment 51, wire 72, segmeet 58, brush 61, wire 81, series '0011' 46', wire 82, hammer coil 42,

wires

74 and 73,

' brush 49, collecting ring'34, wire 70, segment 23 of the generator commutatoryand back: to the armature 12 through wire 29. Thus the hammer coils 41 and 42 each re- I ceive a current impulse during each revolution of the armature.

It will, now be understood that duringthe operation of the generator, the'coils 39 and 40 of the hammer 37 will receiveimpulges in alternate succession causin 'it'splunger to reciprocate, and that the C0118 41 and 42' of the hammer 38 will receive impulses in alternate succession causin its plun ertore-1 ciprocate, and that the coi s of the ammer 38 receive two impulses during each revolution of the armature, andthe coils of the hammer 37 receive four impulses; during each revolution of the armature, causing the and 38 on the generator;

hammer 38 to operate at one-half the speed of the hammer '37.'- y

' The current passing through the. series coils 43,44, 45 and 46 during the operation of'the hammers 37 and 38 supplements the current of the shunt coils 17 18,19-and 20, and-serves to build up the field of the generator and prevent a tall in voltage due to the presence of the load :of, the hammers37 The number of turns in the several, series windings of the generator may be varied, as occasion may r uire, to suit the articular characteristics 0 the translating evices in ptrgperly building up the field of the gener a r.-

I claim as m invention:

1. The com ination of two cl trical translating devices, a generator havin a plurality of pairs of pole pieces, a plurality of pairs of series windings supplementing the main field windings of the generator,

means forming electric circuits including certain of said series windings therein and a commutator for supplying impulses from the generator to one of said devices, and means forming electric circuits including. certain of saidseries windings therein and a commutator for supplying electrical impulses from the generator to the other of said devices, one of said means supplying a greater number of impulses to its series windings and its translating device per revolution of the generator armature than the other.

2. The combination of twoelectrical translating devices, a. generator having a plurality of pairs of le pieces series gs corresgondin i ii number with'the W111 pole pieces an supplementing the main eld windings of the generator, 1means' form- 9e electric circuits including, certain of said series windings therein and a commu-- tator for supplying impulses from the generator to one "of said devices, and means ioo' forming electric circuits includin certain Of-Sald series windings therein an a commutator for supplying electrical im ulses from thegenerator to the other of said devices, one of said means supplying a greater 1 number of impulses to its series windings and its translating device per revolution oi the generatorarmature than the other. 3. The combination of two electrical.

translating deviceseach having, two magnectic coils, anleieetrical generator series windings supplementing its main field windings, and "it commutati switch devices carried by the armature sh" of the generator for sup lyingthe ding-a with theelectrica impulses dfor supplying the coils of each translating device with electrical impulses in alternate succession and'com rising a collecting rindg' connects "to each translating evice and to a segment of the generator commutator, a "is: commutator provided with,

generator coutator, and adistrihut commutator provided with means to elec trically connectthe coils of the other trans lating device and a :m-ent of the enerator commutator, one cemmutator's mahng. and its elec ,tricell connections with its tr ati de- 3% I electrically i are p IIbllliiil?" 1 means to e ectrically connect the coils of one translating, device and a. segmentof the a res f m ddistri utin l j &

. tor commutator and two distributing commutators having live segments electrically connected vto a. segment of the generator commutator, one distributin commutator,

having more live segments than the other,

a brush co-operating with the collectingring and electrically connected. to'the coils of each translating device, two brushes 00- operating with one of the distributing commutators and electrically connected with certain of the series windings and the rea spective coils of one translating device, and two brushes co-operating with the other distributing commutator and electrically connected with certain of the series windings and the respective coils of the other translating device.

In testimony whereof I aflix my signature hereto. 7

LOUIS PAULERO.