US1712856A - Switch operating and locking device - Google Patents

Description

May 14, 1929. H. THULLEN SWITCH OPERATING AND LOCKING DEVICE Filed Feb. 24, 1926 nowto patente& May "M, 19239.

i LOTIL' Tlttllihlll) OF "UIPPER MUNTULAIEJ, NEW JERSEYL SWITCZH OPFRAIING ,htt'l'l LOGHEWG- DEVICE.

i Application filed February EM, 19536. Serial Ne. %Mit l.

This nvention relates to devices for operating and locking switching apparatus, and incre particularly to such devices for use in connection with hi gh tension outdoor switch structures.

In operating high tension switching apparatus 'tor conveniencc and safety of the openator, it is desirable that the operating handles located at a point reinote ironi the region oi the dangerous area around the switch parts which are charged to a high potential. '`hc looking and unlocking and other control Operations should also be preterably acconpiished without the necessity ot the operator@ coming in contact with any of the nietallc Operating parte oi" the appa ratus even though such parte are normally insulated ;treni the high iotential line.

In View oi the above facts, I have :found it to be desirable in accordance with this ..rvention to provide thenovel iorn oi? switch operating and locking means hercinaiter described at a pointspaced a substantial distance ironi the other switch apparatus and associated with such ap aaratus merely by an insulating Operating red. My improved leci( ing lover device nay however he applied to other arrangenents and uses. a

'the .main object oi. the invention is to provide an eliicient switch operating device ot' the type above indicated, by which the switch level' rnay be locked in either its closed or its open position, and which is provided with nieans tending to prevent its unanthorized or accidental shiiting ironi one position to the othen a Further and more specific objects, "features and advantages will more clearly appear :ti-om the detail description git 'en below taken in connection with the accompanyingg` drawings which 'term apart oi? this specilication. In the accoinpanyng drawings- Fig. l is an elevational View of a pretor-red enbodiment of the invention as assocziated with suitable switchng apparatus.

Fig. 2 is a longitudinal sectional View showing` in detail the parts oi' the loching device and Operating handle enbodyjn; the inventon.

Fign 3 is a longitudinal sectional 'View taken at right angles to the sectional View oti? l u Fig. i is a sectional View taken substantiab ly along` the line 4:--4L of Fig. 2 and showing an end View oi' the Operating handle enhodying this invention in one ot its phases.

Fig. 5 is a sectional View taken substantiab ly along the line 5-5 oi" Fig. 2 and illustrating an end View oi the looking means einbodying` this invention.

Hotel-ring' to the drawings in further detail and particularly to Fig. 1, switch arus and 11 are illustrated as being` fixed on rocking insulator supports 12 and 13 respectively, the nsulator supports being 'oched by an iusulating o :erating rod let pvotally connected to a crank arin 15. The crank arin in turn serves to control a rochable supporting iixti're oli y suitable type at 16. The fixture 16 is opei otively associated with a corresponding rockablc supporting fixture 17 through a connectng linh member 18. When the opera *ing red l i is thrcwn to its ex treme ward position, the switch arms 10 and 11. are moved to the closed circuit position and 'when the Operating red lt is drawn downwardly, the s VltCll arms are thrown to their open eircnit position. i a

rin onerating iever 19 is pvotally mount- :nal point 20 and pivotally coni at to the epsrating;` red lt. A suitable lizrcd (sh-nipi: device 22 may be provided such as in he toi-ni oi? a quadrant Or The assenbled .looking ot'ier arcuate iorn. lHGCllttllllll is indicated at 23 at the end of the lover ll) opposite ironi the pivotal connection 2i. An insulating` handle member 24 is designed to be detachably connected to the loclting nechanism 52.3 iu a n'anncr herein etter descr bed. The handle member 24 may nrefcrahly better-med with a shaped grip portion 25, which will pernit the handle to be readily turned oi' moved in and out and up and down as desired.

lteterring to l `igures`2 to 5 the locking noelninisn. will now be described in further detaii. The (pnidrant meniher 22 is provided with notchcs 26 and 27 respectively foienr ap ing the looking' means when the switch is .in its clor-ied and open circuit positions. 'the lerer 19 i eucircled by a sleeve member 28 which shaped to normally engage the reres-:ses or notches 26 an d 27. The lever 1nemimi" lt) provided with a slot or aperture 29 through which the quad 'aint inenber 22 :treely slides except when engaged by the sleeve .member 'lhe edge of the sleeve member 28 zdjacent the quuh'ant 22 may be norided with a pair ot oppositely disposed notches as at 30 and Bl wbereby when the to 'the proper position with sleeve is turned respect to the leter '19, the quadrant member 22 will pass through the notches 30 and 31 movement.

thus permitting the lever 19 to freely slide wer the qnadrant member.

` However, the sleeve member 28 is normally retained in a position as shown in Fig. where it engages the quadrant member and looks the lever and switch apparatus' agains To retain the sleeve member in this locked condition a pair of spring prcssed (log members 32 and 33 may be pivoted within suitable recesses formed in the lever 'member 1-9 Small coil springs 34 and 35-lodged within the recesses serve to press the 'ends 36 and37 ot' the dog mcn'bers 32 and 33 re spectively into engagement with rccesses 3 and 39 -formed in 'the sleeVeQS, Until the i dog members are retracted the sleeve member 33'respe'ctively areforced inwardly` which operation affects therelease of the portions 36 2nd-37` and pernnts the sleeve member 28 to thereatter rotatedj The crrnle mem-- ber t@ ma v also be DI'OViClGCl with suitable ln'gs or key portions as at &4 and 1:") tor engaging corresponding recesses as at 46 torn l in the edge of the sleeve 28. rifter the end of the handle member 2411213 been applied. and the key portions 44 and 15 are in engagement with' the sleeve 28, the grip portion ot the handle may be rotated through an angle ot90 'by the operator which rotation will cause the 'sleeve notches and 31 to be brought into alignment with the quadrant 'member 22 and into a position in which they straddle the quadrant member Thereupon the operator may raseor lower the lever 19 about its pvotmg point 20 to close or i open the switch.

;The lover 19: may be provided with retainmg'screws as at 47 (see Fg. 2) and as at 48 i (see Fig'. These retaining screws are receivedin suitable Slots 4:9 and 50 respectively which Slots extend longitudnally of the handle member 24. At the inner ends of the slots r 49 and O transverse sht-extensions 51 and 5 2 respectively may be provided, which extenlocked condition. However, as soon as the device is restored to locked condition by turning the sleeve 28 back through an anglc ot 90 the retaining screws 47 and 48 are brought back into the Slots 49 and .30 and the h dlemaythenbc removed. \Vhcn the hanthe is removed the coil springs 34 and 3.7 wi li V located at the point where the dog memlx rs sions receive the retaining screws or pins 47 i 'and'4t8 at such times asthe Operating handle is turned to rotato the 'sleeve 28 to unlocked position. The retaining screws being 'receivedwithin these transverse Slots, the operating handle at such times cannot be removed'trom` the looking device. The operator is, therefore, prevent ed from removing thehandl'e and leaving the lever 19 in unintcrsect and cross.

ii hile I have described my improvcmenls in great dctail and in connection with a prefcrred form thercoi", I (lo not dcsire to be limited to such details or form since many change and modifications may be made and the HIPI'UYC`IEICD'S embodicd in widely diterent forms witl'zont departing from the spirit and scopo o a the in'vcntion in its hroadcr aspects. Thcretore, l dcsire to cover all modi- W tions and forms coming within the lan- ;'ua c or scopo ot any one or more of the appended claims.

hat i claim as now and desire to secure by Let ters Patcnt is:

1. i\ device tor actuating and locking high tension olectrical apparatus or the like against movement comprising a pivotally nonnted levcr means operatively connecting sa id lover to the electrical apparatus, an arcnate frame member slidably cngaged by said lover, locking means on said lover and notches for-med in said 'framc member which coact to lock the lever and apparatns in either of two positions, a detachable insulated Operating handle for said lover, and key means on said handle to nnlock said locking means when the handle is applied and given a turning movement, and means acting to retain the handle against removal until the looking means is restorcd to locked condition.

2. A device for Operating and looking electrcal apparat-us against nnauthorized or accidental' movement, comprising apivotnlly mounted lever, means operatively connecting said lever to the apparatns, an arcnate framc member slidably engaged by said level', locking means on said lever and notches formcd in said frame member which coact to lock the lever and apparatus in either of two positions, a'detachable Operating handle for said lover, and key means on said handle to unlock said looking means when the handle is applicd and given a turning movement.

3. A device for Operating and looking were comprising an Operating lover an arcnate frame member slidably engaged by said lover, locking means on said lover and notches formed in said frame member which coact to lock the lever in either of two posiill@ tiene., said looking ;means comprising a sleeve eneiroling the lever and shaped to eng-age said notohes in the aronate frame member When turned in one position and to permit the lever to freely slide ever the arcuate ;treme member when said sleeve is turned in another position on the lover and electrioally nsnlated means with a grip portion Widely spaced from the looking means for eontrolling the position ot said sleeve.

43 A deviee for operating and looking levers oomprising an Operating level', an arenate 'fi-ame member slidably engaged by said lover, looking means on said lover and notohes :toi-med in said frame member which coact to look the level' in either of two positions, said looking means comprsng a sleeve eneireling the level: and shaped to engage said notehes in the arcuate trame member when turned in one position and to pern'it the leVer to freely slide over the aronate :frame member *When said sleeve is turned in another pestion on the level', and spring pressed means :normally retaining said sleeve against turning and in engagement with said notohes and eleotroally insnlated means with a grip portion widely spaeed from the looking means tor controlling` the position ol? said sleeve.

5. A device for Operating and looking eleotrieal apparats against Lmantlmrized or aooidental n'iovement, oomprsng a pivotally monnted level', n'eans operatively connecting; said lover to the eleetrieal apparatns, an areuate lirame member slidably engaged by said level' looking means on said .lover and notohes ;termeti in said frame member which ooaet to lock the lover and appa'atus .in either ot two positions, said looking means c0mprising said sleeve out of engagenent with the r notohes.

6. A device for Operating and looking control levers et eleetrioal apparatus eonprising a lover, an. arenate lrame member slidably engaged by said lover, looking means on said level' and notohes tormed in said frame membei' which ooaot to look the level', said looking means oomprsing a sleeve eneireling the leVer and shaped to engage said notohes in the area-ate :trame member when turned in one position and to permit the lover to freely slide over the arouate trame member when said sleeve is turned in another position on the lover, spring pressed means normally retaining said sleeve against turning and in engagement with said notehes, and a detaehable insnlated Operating handle provi.'led with key means tor releasing said spring pressed means and :for turning said sleeve out of engagenent with the notohes, and means aoting to retain the handle against removal until the looking means is restored to looked condition.

ln testimony whereof I have signed my nai'e to this s jieoit'oation.

LOUIS H. THULLEN.

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