US1889240A - Switch mechanism - Google Patents

Switch mechanism Download PDF

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Publication number
US1889240A
US1889240A US485035A US48503530A US1889240A US 1889240 A US1889240 A US 1889240A US 485035 A US485035 A US 485035A US 48503530 A US48503530 A US 48503530A US 1889240 A US1889240 A US 1889240A
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United States
Prior art keywords
shaft
switch
spring
pawl
armature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US485035A
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English (en)
Inventor
Erickson John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Associated Electric Laboratories Inc
Original Assignee
Associated Electric Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Priority to US485035A priority Critical patent/US1889240A/en
Priority to GB26380/31A priority patent/GB389820A/en
Priority to FR724391D priority patent/FR724391A/fr
Priority to BE383003D priority patent/BE383003A/xx
Application granted granted Critical
Publication of US1889240A publication Critical patent/US1889240A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/02—Multi-position wiper switches
    • H01H67/14—Multi-position wiper switches having wipers movable in two mutually perpendicular directions for purpose of selection
    • H01H67/16—Multi-position wiper switches having wipers movable in two mutually perpendicular directions for purpose of selection one motion being rotary and the other being parallel to the axis of rotation, e.g. Strowger or "up and around" switches

Definitions

  • SWITCH MECHANISM Filed Sept. 29, 1930 6 Sheets-Sheet 2 4 N 1 Inman Dr- Nov. 29, 1932. J. ERICKSON SWITCH MECHANISM Filed Sept. 29, 1930 6 Sheets-Sheet 3V Jul-m Erickson wmwm Rmw www
  • One object .of the invention is to provide i i, a switch mechanism which may be operated at much higher speed than has been possible to attain in former switch mechanisms of a similar character.
  • Another obj ect is to provide a switch which is very compact, .but which may be readily disassembled for repair or inspection.
  • Still another ⁇ obj ect resides in the provision -ofla simplified mounting arrangement wherein the lsupport for the switches simply coni sists .of an 'I-beain upon both sides of which the switches may be readily mounted.
  • Another object is to provide a switch of Athe :foregoing type which may be readily modified ⁇ to operate spring combinations at desired level S-.or zcombiiiation'o levels of thewipers.
  • FIG. 1' illustrates an upright having one switch mounted thereon :with its cover in place, but with the switch banks omitted, and with .a second switch basein place havpart of its shaft which supports its wipers,
  • Fig. ll is a view of. the jack assembly as it appears when withdrawn from the switch base as illustrated in Fig. 3.
  • Fig. '5 is a ⁇ :rear view of that portion of y Fig. 3 within ⁇ which the jack assembly is mounted.
  • FIG. 6 is a sectional yview of av portion of thelbasetalcen on range-6.0i? Fig. 1.
  • Figs. 7 and 7 B constitute a front view of the Vswitch mechanism with the portion designated Fig. 7C facedoved Vand shown immediately above its usual position in the assembl and with the portion Fig. 7D remove and shown immediately to the right of its position in the assembly.
  • Fig. 8 is a side view of Fig. 7D; while Fig. 9 .is a back view of this portion of the mechamsm.
  • igs. 1() and 10A when placed together, illustrate a side view of the ⁇ mounting frame portion of the mechanism illustrated in Figs. 7 and 7B.
  • Fig. 11 is a detail ofthe mechanism Villustrating how the back stroke of theprimary magnet armature is adjusted.
  • Fig. 12 is a view ⁇ of the right side of the switch mechanism with that portion of the frame member shown in 7B' broke-n away.
  • Fig. 13 is a rear view of the mechanism with that portion of the frame member shown in Fig. 7 B omitted.
  • Figs. 14, 15,116, and '17 are details of the level spring operating mechanism.
  • FigLlS is a top ⁇ view ofthe switch, with the frame portion shown in Figs. 10 ,and '10A4 omitted.
  • f Fig; 19 is a side view, with the frame portion shown in Figs. 10 and 10A omitted.'
  • Fig. 2O is a bottom view, with the -frame4 portion shown in Figs. 10 and 10A omitted.
  • Figs. 21, 22, 23, and 211 are details of the shaft and 'its operating mechanismp
  • Fig. 25 is a diagrammatic perspective il- I
  • the vfront and back surfaces ofthe I beam are perforated and tapped to receive screws 301 to hold the switch bases thereon.
  • Th nuts such asr 351, arethen drawn-upto if :glie ismade up of y prompt particu, melmdedrilledeand tapped,
  • a jack assembl 900 is bridged" VThis assembly is he d in place by suitable Allv elecbrackets 901and 902, respectively. Y is wired upto this'jack assembly.
  • the lswitch is roperly mounted thereon with jack on ,the base'.V With ⁇ the switch in propel' ⁇ osition, the locking 1u 337 onthe switch rame snaps into av b .Ileckngthe switch in place against acciydental. removal.
  • v To remove theswitch, it isne'cessary-to first withdraw spring 337 from Fig.l1,.comprises a brac t 610 which is made kofainsulatin material and held fav t 500 by the screw 351. The wiper.
  • a metal spacer 609 having-in-- sulationistrips-On each side thereof separates the vtwo V.wipers 333 and 334.
  • Theprivate wiper assemblyfis v 1n the same manner as the line wiperl bly, except that sincey there is1 lentypf room on the shaft, the holding brac eamo isn-f versedand no insulating members are; pro- ⁇ 'When the switch iswired up,4the
  • cords are extended between the wipers and' the wiper cord terminal block 910, shown in ,vided between the stiienmg member 609 and l: Y. .i
  • a primary magnet armature 540 is held in pivoted relaj tion'to the frame 15.0by a pin 501 passing' through the armature and the frame and held 11,31 ⁇ firmly in place by the key 537, visible in Fig.
  • VAdjusting screws like those shown in the top of the armature 545, of Fig. 13, are pron videdftoregulate the air gap between the magnet cores andfthe armatures. These screws lare held in'rany set position by a tension spring'such as 330.
  • a tension spring' such as 330.
  • the free end of armature 540 is connected with an ⁇ operating pawl 611 mounted ⁇ in' ⁇ 'pivoted relation to the arma- ⁇ ture and held in engagement with the associated ratchetbar 610 by spring 329 entending between the armature 540 and pawl 611.
  • the arrangement illustratedin Fig. 11 is employed.-
  • An armature backstopfadjustment cam 612 is slidably wedged vbetween the armature 5,40 andftheincline139 ⁇ and is held. in its adjustedposition by a screwV passing through y ,the wedged member 612.and-inten ⁇ threaded v perforation in theframe 150.
  • the armature 540 isnormally held against itsV back stop by tension spring 320.
  • This spring is one of a 1X-@combination adjustably held between raised portions 152 ,and 1522 on frame 150.
  • a pawl-stop spring 662 is provided. This spring is secured at its lowermost end to the frame 150 by means of screw 663. An adjusting screw 664,ipassing through the frame member 150,
  • a holding pawl 613v Pivoted to the lug 131 of theframe 150 is a holding pawl 613v (shown ⁇ in Figs. 7 and ).,.secured in place by a shaft or pin 504 which in turn is held in place by the key 530.
  • This holding pawl lies intermediate to the ratchet 610 and pawl 611 and is held against l the surface of the ratchet teeth by a spring f 328 having its ⁇ left end connected to a portion of the holding pawl613 and its right end secured to apin on the upturned portion 5482 1 of a release magnet armature-548.
  • a release magnet 615 Mounted upon a raised portion of frame 150. and most clearly illustrated in Fig. 20, is a release magnet 615.
  • the armature 548 of this magnet is connected in pivoted relation tothe frame 150 by means of pin 616 which is keyed to the frame by the key 530.
  • the previously-mentioned extension 5482 of thisarmature it will be observed from inspection of Fig. 7,'lies ⁇ adjacent to the holding pai-vl 613 vand at the upper side thereof. Therefore, upon energization of the release magnet, the armature extension 5482 rotates the ⁇ dog 613 clear of the ratchet teeth of the ratchet bar 610, and carries with it the operating pawl 611. When this occurs, the restoring spring327 draws the arm 614 to the left to restore the shaft 500 to its normal position.
  • inFig. liesjin the path ofmovement" of ⁇ arm 548 of thearmature 548, while ani 628th; the contact ..16 B11112092 'lmleaeewmagnet isactuatedhelever 628 if hor-mal position,
  • the spacing member 632 having ten threaded perforations, enables the cams 625; and626 to be set at any desired position with y respect to the pinion 621 Aso that the spring' .m i gmbinatiois contrclled b' these cama may u voperate v at any esire ition, or'poq ⁇ 4 if tions, of the shaft 500..
  • both nations are to be changed as a unit, the sector; if may be withdrawn clear of the pinion and the', t f pinion position readjusted with respect to l j" sector.y
  • the spring e tions. are setto 4operategin the seyenthf and* eighth positions'and itis desired to change them moprminthe are and tions, they sector is withdrawn clear o pinion and the pinionfrotated the ropr diei ⁇ tancein the proper direction an the Seem returned intov operative relation vtothe pingt 1on.
  • the shaft is tated from Vone to eleven steps dependi i upon the number of impulsesptra either directively or automatically, by the m rotary ma ets 385 and- 386.
  • a tension spring 303 On the opposite side of thepin 509 isV a tension spring 303. properly tensioned to hold the armature against its baclrstop.
  • the tensioned spring 303 (and contactsprings 304 and 305 are mounted on ⁇ a bracket642 adjustably held .between raised portions 142 and 1422 of the .frame 150.
  • the circular portion 680 onplate A700 Y isprovided.
  • a toothof the rack rides onto the rotary portion680 ⁇ andupon the second step it clears thepawls 611 and .613.
  • the pawl G11- simply functions to prevent retrograde movement of the shaft 500 prior to the transmission .of rotaryV motion to the shaft.
  • VThe pawl 637 Vtransmits rotary motion to ⁇ the shaft 500 through the medium of the ratchet wheel 640, specific details of which are illustrated inFigs. 21 to 23, inclusive.
  • the ratchetwheel 640 Vlits over the shaft 500 and is keyed thereto by the rack 610 passing through a notched-out portion 643 of the ratchet wheel.y
  • a knurled member 645 has anotched-out portion v650v passing through f i a portion of the ⁇ frame member 150 and is secured in fixed relation thereto bythe nut Y. 1 rotatedto tensionthe spring 350 to any degree desired or foundfnecessary to restore the shaft Y to its normal position, with respect to its ro tary position after having beenmoved around to any of its rotary ott-normal positions,
  • a holding pawl 655 having its free end tensioned against the teeth vof ratchet wheel 640 by the associated spring" 326, which extends between pawl 655 and pin 701 on plate 700.
  • This pawl has a for- Wardly-extending member 655 the purpose of which will be explained later.
  • a comb l member 653 having an upwardly-extending spring-operating pin 647.
  • the finger 652 ofthe spring-holding bracket extends down between springs 315 and 316.
  • the springs 316 ⁇ to 319, inclusive are rotary o-normal springs, while the springs 309 to 315, inclusive, are operable upon the eleventh rotary step.
  • a lever 657 is secured to the underside of comb 653 bythescrews 384. This lever is normally acted'upon by the tension ofspring 350 in the ratchet' wheel. 6'
  • cam 568 on. wheel640 normally holds the spring-operating member 647 against the spring 316 withsuiiicient force to overcome its tension and, therefore, holds the spring 'I combination in the position shown in Fig. 18.
  • cam 568 is carried away from lever 657 and, consequently, the springy 316 functions to move its spring combination. Since, however, the finger 652 extendsdown between springs 315 andf316. none of the springs 309 to 315 yare affected bv the ⁇ vmovement of springs'316 to 319. This -is further guarded asainstby the semi-circular portion of lever 657, beine' brought near theinner surface of the. cam 568 which positively limits the nossible distan ce of rotation of spring-controlled member 647.
  • VThe release magnet may be deenergi'zed immediately L the armature 549 is'now held in its F position by the sring Vv801. thes affini- TJ sumas its'no'rma position, kthe arm 802119; 5 f f stores the o-normalsprings to normal tion and'fat the sametime'moves thespririg 801 clean of arm 549', thereby permitting th armature 549to restore to its normal :'Wlat'is claimld isz 11;.
  • switch structure v having a multi 13'* positionV rotatable shaft, Y a contact sp" l combination, means foro rating certain o the springs of said comblnation consequent--r Y totherotaton of said shaft a limited ⁇ wtli ⁇ I tance, and other'means operativeconsequent-Vn to a. ic distance of further saids aft to cause said first-means move other springs of said combination in N'S certain instances.'VK
  • a switch base comprising a bach portion' 'anda switch bank fholding portion arranged parallel to each other and with a connecting portion lying at right angles to said parallelpcrtions, a switch mechanism assembly slidable into said base,
  • an electromagnetically operable switch of the type having a shaft adapted to be driven by a pawl and ratchet mechanism in a primary direction by one magnet and then in a secondary direction by a second pawl and ratchet mechanism and a second magnet, a movable pawl for holding said first ratchet in any position to which it is operated in its primary movement, means operative consequent to the secondary movement of the shaft for moving the first ratchet clear of said movable pawl, a fixed member for holding the rst ratchet and encountered by said ratchet consequent to the secondary movement of the shaft, a second movable pawl for holding the second ratchet in any-position to which it hasbeen advanced, and means including a link-connection between said movable pawls for permitting the shaft to restore to its initial position.
  • an electromechanical switch having a shaft, pawl and ratchet mechanisms for moving' said shaft in a step-by-step manner endwise and then rotating it in like manner, independently movable pawls for vpreventing retrograde movement of the shaft, a fined element for preventing endwise movement of the shaft while the shaft is in a rotary oftnornial position, a release magnet having a release armature coacting with said pawl and ratchet mechanisms, when said armature isheld in its operated position, to clear the pawls of said mechanism from their ratchets; means then operative to restore the shaft to its non-rotated position clear of said fixed element, and means for then restoring said sha t to its initial endwise position.
  • a shaft In a switch mechanism, a shaft, means 4for moving said shaft iii a primary direction, sets of contact springs, means operative consequent to the movement of said shaft for operating one set of said springs andfor preparing the other set for operation, an element operative to bring aboutV the operation of the prepared spring set and the restoration of said shaft, means for locking said element in its operated position until the shaft has substantially fully restored, Ysaid shaft being operative during the final portion of its restoring movement to cause the first-mem tioned means to restore the said element and both spring sets.
  • a shaft means for moving said shaft in a step-by-step manner in a primary and then in a secondary direction, sets of Contact springs, means for actuating one set consequent to the Ainitial primary movement of saidshaft, means for operating afsecond set each time the shaft is mov-ed in the primary direction, means for operating a third set consequent to a predetermined primary movement of said shaft,
  • f mand vratchet mechanismsY for moving said shaft' in ⁇ r aprimary and rsecondary direction respectively, independently movable /pawls for.; holding said. shaft against retrograde f movement, springs 'for restoring said shaft to 'u itsinitial position, and lan element for holdrins eid saldsha Y to enable said Asprings to function.
  • y 19.1na switch mechanism a shaft, a rack .3 anypnsition to which it is moved by erating pawl, a vfor ho k3Q in lfixedfrelation to said shaft, a
  • a wiper hol bracket made of insulating material andhlf2,?.s ing a hole therein for receivin a shaft, met# for frictionallyy holding said racketto shaft, and awwiper'assembly havingfsiy lolary in the bracket, the holeiin said Wi i bly beingtinl register and contanti-grim l' hole in saidibacket.
  • K f 23. In a switch mechanism whercinalshlwrequipped with contact wipers ils'v rst' mond:
  • I n a switch mechanism, a spring asscm- 'm bly comprising va bracket upon which "the springsl are mounted and having a 'separating the assembled springs into ⁇ two groups, a shaft for the switch with nism for rotatingthe shaft, a leveractuld Y g by the initial rotary movement of said shaft a distance limited by said finger, and 0th* ,l l meansassociated with said shaft co-operatng withsaidlever to actuate the said V,springe4 f ofthe other group uponv a subsequentrow tion'of said shaft.
  • f Y.. n Iny an electro-magnetic switch whe'ie .a shaft is firstfmoved endwise a limited nudi. n

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US485035A 1930-09-29 1930-09-29 Switch mechanism Expired - Lifetime US1889240A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US485035A US1889240A (en) 1930-09-29 1930-09-29 Switch mechanism
GB26380/31A GB389820A (en) 1930-09-29 1931-09-21 Improvements in or relating to automatic switches for use in telephone or like systems
FR724391D FR724391A (fr) 1930-09-29 1931-09-28 Nouveau type de commutateur téléphonique
BE383003D BE383003A (en(2012)) 1930-09-29 1931-09-29

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Application Number Priority Date Filing Date Title
US485035A US1889240A (en) 1930-09-29 1930-09-29 Switch mechanism

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US1889240A true US1889240A (en) 1932-11-29

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BE (1) BE383003A (en(2012))
FR (1) FR724391A (en(2012))
GB (1) GB389820A (en(2012))

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120036875A (zh) * 2025-04-23 2025-05-27 普密特(成都)医疗科技有限公司 一种外刀组件及弯曲角度可调的脊柱刨刀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN120036875A (zh) * 2025-04-23 2025-05-27 普密特(成都)医疗科技有限公司 一种外刀组件及弯曲角度可调的脊柱刨刀

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FR724391A (fr) 1932-04-26
BE383003A (en(2012)) 1931-10-31
GB389820A (en) 1933-03-21

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