US1036417A - Distant-control electric switch. - Google Patents

Description

G. G. BADEAU.

DISTANT CONTROL ELECTRIC SWITCH.

APPLIQATION FILED P131317, 1911.

1 O 3 6, 4 1 '7', Patentad Aug. 29, 1912.

2 SHEETS-SHEET l.

' t I 7 f C. O. BADEAU.

DISTANT CONTROL ELEOTRIG SWITCH.

APPLICATION FILED IEB.17, 1911.

1,036,417,-. Patented Aug. 20, 1912.

2 SHEETSSHEET 2.

1 I11! WIT? o United Ste the county of .Vchnse't have invented cernew isc'tiil improvements in Q's i or which the iull, clear, and exact speciinv-ntion relates to electric switch or ircuitc may he point thus enmanipulate l with. e in any desired.

e and as pressur 3 which the circuit is made ulid i or solenoids of p We one it of th oligects of my invei'ition to his rel i the operating mechanism in t -mol. for the purpose on iron that as its armatu e t approaches closer core magnetic circuit gives iiiClQflSQti power, e cam mechanism interposecl between the armature encl the operati i icreeses the leverage l. i multiplies the power. By this means able to effect the operation oi the heaviest; switches employed in service for supply and. distribution of electricity with e coinper: tii'ely small electroniagnet. The magnet is preferably of the hell type in which both the core and shell. are of iron and cooperate in rendering maximum the trecti e etlort o the armature. A very important. incident o this structure is that the violent on th switch ports usunhy occurring when switch is thrown open or shut is my structure and although the hezzi'y iii-into nice :5 .wi th ic svit'h ture when tlfi'LWtl to the magigreat. speed uncl closes t i quickly the Vibration and. ii apparatus is almost nil. Tl i cipally due to the sliding 'IQll L the can: which throws t .-e ewit .tTii, ESSZGNGB TO SEARS .etsew Jed/b8110- Pziten Aug. 29 1912.

with a roll contact Wl'iiCll rides easily on the coin sn of the switch-operating lever and always provides a yielding relation be tween the part Another feature o in providing on the tgnet a tripe mgn the inech my invention consists mine of the operating et and latch forengag- :1 when the switch is closed r IL in the closed position thereby ooth operating magnets to be dec cl resulting in an economy of operiinetl Wit '1 n power multiplying mechanism veen. the armature zino'switch, physically iniectetl from one another but mechaniclawed.

consists also of such an organizntion in )inzition with a latch for looking the ch closed, permitting release of the closi magnet, and an independently operated top-magnet for releasing the latch.

COHLPZL'QS also an operating magnet and tripping magn t mounted on. the same frame roving 21. common operutnig rot. and common switch parts.

it comprises also other features, the novelty oi? which will lie hereinafter more fully ilescriheil and will he definitely indicated in the clni ns eccoinp nying this specification.

In the accompanying drawings which illustrate my invention Figure l is a secionel View showing the relation of the op magnet and u group of switches cinhiiitlyinp; my improvements; Fig. 2 is a sectional detail View more clearly showing the structure oi the tripping magnet on? latch; 5 a View at right angles to that of Fig. 1, showing the parts in elevation; and Fig. {L is a tliagrsininniticillustration of the control circuits.

1 represents a support for an oil switch or group of oil switches. Thiu may he a switclilimirti panel or it may be a cell in i'vhich the high potential switch is isolated. innflc oi [re proof and moisture proof inso. ling materiel. From a casting 2 :pport is sun-ported 2. group of sols :3; through :in opening in the (JUX'QU of each switch projects ii u'ooilcn i'Utl I at the bottom of which is an elastic bridging concoct 5} adapted When the l t. he switch terminals 6 Fol Eltl

v k arn'zature to its normal and conmlete the circuit between supply or distribution leads 7, 8 carried through tubular insulators in the support. The leads entor the switch. through. porcelain insulators 9, 10; the switch rod 4; is raised and lowered by means of a toggle, the two links ll, 12 of which are actuated by a bar. 13 and bell crank lever 14 connected with the operating mechanism. The link 12 of the toggle is hinged to a bar connecting with the rod t or any number of similar rods in the group of switches.

As shown in Fig. 3, there are three oil vessels and the movable contacts of all three are simultaneously controlled by the toggle l1, 1 as will be. apparent from Figs. 1 and 3. The lower link 11 of the toggle is pivoted at a fixed point on a "frame secured to the insulatin g cover. Connecting with the bell crank 14. is a rod 15, the end of which is screwed arms 16', 16 journaled on the magnet frame 17. The arms are rigid with a cam 18 (see Fig. 1) set at an angle relatively to the arms and in cooperative relation to a roller 19 on an arm rigidly related. to the magnet armature 20, but lying at a suitable angle relatively thereto; across the arms of the yoke 16 is a pin 21 adapted to be engaged when the armature is drawn up to the magnet by a pivoted latch 22. This latch is pivoted on a stud 23 on which is also pivoted the armature 24 of a release magnet 25 supported on the frame of the operating magnet, and the armature 24 has an overhanging arm provided with an adjusting screw 26 lying in the path of the latch 22 sothat when the armature 24 is attracted the screw 26 knocks the latch away from the detaining pin 21 leaving the switch free to open. The switch element is given a normal bias to the open position by counter weights or springs and in the opening movement will act on the cam lever and restore the operatposition or, if desired, this armature may also be spring retracted.

The frame of the operating magnet is an iron casting of mild steel or cast iron and contains an aimular cavity 27 to receive the operating coil. in the casting is provided an integral pole piece 28, the tip of which is conical in shape, as indicated in Fig. 2, and enters a. conical recess 19 in the armature. This relative arrangement of the working parts of the core and the armature gives a wider area of magnetic flux and intensities the tracti e effort of the armature when it occupies the open position and also equalizes the pull by making the changes of field strength more uniform. magnet moreover produces an annular mag netic field which acts with rapidly increaspower on the armature as it closes. It will be evident, moreover, thatin the opera- ,the power progress of its closing movement and when into a yoke 16 pivotally connected with two The 1 bell shaped I tion of closing the roller 19 rides over the working face of the cam 18 and gradually increases the leverage thereby multiplying exerted on the switch during the it is nearly closed, that is to say afterthe engagement of the bridging contact with the fixed contacts, a maximum power is exerted assuring a good electric working relation of the contact parts. The movement of the armature strikes a hard blow upon the adjoining parts, but as the magnet has considerable mass and as there is a disconnected relation between the cam-roller 19 and the operating mechanism almost no vibration is manifested at the switch which is a new result in switch operation. Ordinarily, where toggles and similar devices are employed, a sudden closing movement of the switch jars the-switch parts violently.

lln Fig. l, l have shown a wntrol circuit for the closin and release magnets; a spring retracted switch lever 30 normally biased to open position cooperates with contact clips 81, 32, each of which leads to a terminal of the operating and tripping magnet respectively. The other termlnals are con nccted together and lead to one pole of a source of electric supply, the other pole or which is connected with the fulcrum of the switch lever. Thus, when the switch is thrown to the clip 31, the operating circuit is closed and the switch shifted to closed po sition, and when shifted to clip 32 the release magnet is operated and the switch circuit tripped.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a distant control combination of an operating magnet controlling the closure of the switch, an armature engaging with a cam, an operating rod shifted by the cam, an oil bath for the contacts, a toggle operated by the rod, a movable contact operated thereby, a detent on the rod, a latch having a fixed pivot and adapted to engage the detent when the switch is closed, a tripping magnet to release the latch and a distant control switch for the closing and trip magnets.

2. The combination of an iron clad electromagnet, an operating armature pivoted on the magnet frame, a power multiplying lever pivoted on the magnet frame, having a cam face engaged by the operating armature, a pivoted operating rod connected to the lever and a toggle and switch member operated thereby connected to the rod.

3. An electrically operated switch comprising an operating magnet, an armature and operating lever independently movable both pivoted to the magnet frame and mechanically related through power multiplyelectric switch, the

- mg cam operating mechanism, switch conprising an operating magnet, an armature and operating lever independently movable both pivoted to the magnet frame and meehanically related through power multiplymg cam operating mechanism, switch contacts controlled by. the operating lever, a detent on the magnet frame to latch the switch in closed position, a release magnet, and a distant control circuit for the operating and release ma nets.

5. An electrically operated switch comprising an operating magnet, an operating armature pivoted thereon, an operating lever shifted the armature, a cam and roller between the two engaging through increasing leverage when the magnet is energized, movable switch contacts operated by the armature, a. detent to latch the'switch in closed position, and a release magnet controlling the detent.

6. An electrically operated switch comprising an operating magnet and a trip magnet mounted on a trame common to both, a switch operatin rod, a cam lever connected thereto, engage by the armature of the operating magnet, a latch controlled by the trip magnet, and a detent on the switch rod movable into engaging relation. with the latch when the operatingmagnet is ener- 7. The combination of an iron clad magnet, an armature and operating lever bot-h pivoted on the magnet frame, a cam and roller engagement between the armature and lever to multiply power on the lever when the ma et operates, a detent to latch the switch in closed position, a release magnet controlling the detent, and switch contacts shifted into engagement by the armature when operated.

8, The combination of'an ironclad magnet, an armature and operating lever both pivoted on the magnet frame, a cam and roller'engagement between the armature and lever to multiply power on" the lever when the magnet operates, whereby the shock due to the hammer blow of the armature is minimized, a trip magnet on the magnet frame,

switch contacts normally biased to open re-

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