US1489285A - Tongue switch - Google Patents

Description

April 8, 1924. 19489285 J. V. STEWART ET AL TONGUE SWITCH Filed Dec. 18 1923v .'5 Sheets-Shefn 2 any M 5y,

Aprfi s, 1924. h I y 1,489,285

J. V. STEWART ET AL l I A `TONGUE SWITCH l Filed Dec. les, -1925 :s sheets-sheet s Patented' Apr. 8, 1924.

lUNITED STATES II 1,489,285 PATENT OFFICE.

JOHN V. STEWART .ANDy FRANK G. WERTZ, O-F J OHNSTOWN, PENNSYLVANIA.

Tonarm swrrcH.'

Application led December 18, 1923. Serial No. 681,339.

To all whom t may concern Be it known that we, JOHN V. STEWART and FRANK G. WERTZ, citizens of the United States, and residents of Johnstown, in the ycounty of Cambria and State of Pennsyll vania, have invented certain new and useful Improvements in Tongue Switches, of which the following is a specification.

This invention relates to tongue switches and more particularly to means for operating and locking the tongues in thrown position.

One object of this invention is to provide means whereby the switch tongue may be swung to either side of the body and locked in position in a single operation.

Another object is to provide a tongue switch having the novel operating and locking means described in the following specilication and illustrated in the Aaccompanying drawings.

In the drawings,

Figures '1 and 1 combine to form a top plan of a switch structure embodying this invention. i

Figures2 and 2a combine to form a sectional side elevation thereof.

Figure 3 is a transverse sectional elevation on the line III-III of Figure 1.

Figure 4 is a transverse sectional eleva# tion on the line IV-IV of Figure 1a.

Referring more particularly to the draw` ings, the numeral 2 designates the body portion of the tongue switch as a whole, which is of the ordinary well known construction, and is provided with a groove or depression 3 in its'iioor, in which is mounted the usual tongue 4 having a downwardly projecting lug 5 to which the tongue operating rod 6 is secured.

A box 7 for containing the switch operating mechanism is secured to the side of the switch body 2 by bolts 8.

The tongue operating rod 6 extends through a suitable aperture in the body 2l and into the box 7, and is pivotally secured in an eccentric bearing ymember 9 adjustably mounted in an arm 10 of a substantially universal y mounting `A. The universal mounting A is composed of a vertical p in or shaft 114 mounted for horizontal pivotal movement in the box 7, and having the horizontally disposed integral arm 10 and a b'ail'or` U-shaped link member 12 pivotally mounted thereon for vertical swinging movement.

vA is moved about the pivot pin An operating hand lever 14 is pivotally mounted on a horizontally disposed pivot pln 15 secured to the side of the box. The

' lever 14 is offset as at 16 adjacent the pivoted end and is provided at the offset portion with an aperture to receive a pivot lug 17y on the bail or U-shaped link 12.

The operation of the tongue operating mechanism above described is as follows- Assuming that the mechanism is in the position shown, the hand lever 14 will be raised,

and due to the universal mounting A, considerable lost motion is had, since the rst `operation or lifting movement of the lever 14 will raise the bail or U-shaped link 12 an appreciable amount before the mounting 11. After the link 12 has been raised a sufficient distance, the link will act as a lever to rotate the pivot pin 11 about its vertical axis, thus moving the lever or arm 10 rearwardly and operating the rod 6 to swing the switch tongue.

A locking or latch mechanism is provided for locking the tongue in its thrown or swung position at both sides of the body 2 and comprises a locking bar 20 mounted for `a reciprocating or sliding movement in a gulde and supporting structure 21 formed integral with the switch body 2 below the Hoor thereof. The bar 2O is provided at its forward or free end with a head 22 adapted to engage the side face of the lugy 5 on the tongue. The rear end of the bar 2O has a ball and socket connection 23 with one arm of a bell crank lever 24 which lever is in turn pivotally mounted on a pin 25 secured in the switch body 2. The other arm of the lever 24 is pivotally connected to one end of a link 26 which has its otherend pivotally connected to a link coupling member 27. The coupling member 27 is connected to a lock operating rod 28 which is in turn connected at 29 to a manipulating bar 30.

The manipulating bar 8O is pivotally connected at each end to one arm of L-shaped ,or bell crank operating levers 31, which levers are in turn pivotally connected at the junction of their arms to ears 32 formed integra-l with the bottom of the box 7. The other arm of each of the levers 81 has its free e-nd enlarged and provided with an open slot 33 to receive a connecting pin 34 carried by the hand lever 14.

In operation, assuming that the parts are in the position shown in the drawings, the

zthesivitch body y2. been 'moved kpast center..and "the movement of 4the Vswitch tongiie,it will again .be lsubjected to lostzmotion in `llower- Ithe* hand lever 4rment starts,

`side thereof. 'The shown v,to illustrate the 4manner iiiwliich erating ineens. 'It double rail 615i' iirst upward:movement of .the hand lever 14, that is the lost motion movement, will litt or rock the lett hand lever 81 about its pivot, and thus reciprocate the bar 3() and rock the second lever '31 and reciprocate the rod 28 and link 26. The reciprocatingof the rod 2S and link 26 Will rock the bell crank lever 24 and tthusrivithdraiv the locking bar 2O so as to disengage its head 22 from the lug 5. The hand-lever 14 isradapt.- ed'to move the bell crank 31 until it 'reaches the limit-'olf itsl lost motion, vandthe parts are'vso vproportioned and: adj-ustedy that'the lockingbar QO'ivill be freefot'. the lug- 5 when 14 reaches this position. As the handleverreaches the end ot its lostfmotion movement, the pin f-lxivill'move out ot Vthe ope-ii slot 33 and `:the lever 14 vvilloperate the'rod rtoimove further movement of 'tlietongiie 4'trom one sideito the other of Atter'zthe lever 14 -'has 'has completed ing the Usshaped .link llfand,V asthis-mov'ebell crankfleverl and causeltlie'levers 31 randbarlBOpto.move to fthe leitt or in 'a `re- 'verse'd'i'rectiom 'thus :again 'torcingthe y lockingbar :QOfinWardlysoi that its head2?J Will engage the right hand side ot' the lug 5 and vlock 'the tongue/4in its new` position.

,lever B1y is-in -positionto release 'thezpin 34 and ther other lever 31 is in position to'receive the pin 34, at flexible stop is provided. This stop comprises aroller 381mounted in a lever 39 iaving one end pivoted at 40 to ia suitable lng on the bottom of the lbox 7 rand having its other end-supported by a coiled spring 41.

The roller 38 isl adapted to enter a depression/42- in thefloiver' aceof the bar 30 and-softlexibly hold the .bar 30 and leverskl in position'iintil iinseated by V,the ipositive'ac'tion of the lever 14 as the pin 34 entersithexslot in the other lever 31. It-will bernoted the-'tongue operating rod 'Gisshowvn continued through the: right hand sideof tliesivitch'body A2 and that a rod 45 :is shown-extending from the linkcoupling through the-switch Ybody 2to'the right-hand ycontinuation of `the tongue operating rod @sand the rod V45fare double rail *tonguev switches-may be operated by the single'hand lever andz-lock-Aoptongue switches f' are to be operated the i second j only one :tongue .switch is the pin '34 on the lever 14 will enter the-openslot in tlieright hand tongue .locking mechanism.

It Will be understood, however, that When being used the rod 6 will be. terminated at t-he lug 5 and the rod 45 will be omitted.

vWhile We h ave lshown i and described4 only one specific embodiment oft our invention it .will be expressly understood that We do 4not wish to be limited thereto, since various vinodi'iicai'iions may bemade 4Without ,depart ing 'rointhe scope of the appended claims.

We clainrs- 1. The combination Witha tongue-switch comprisingla suitable-bodyportion and a "from side to being provided tongue adapted to lbe Vswung side thereof, said tongue -vwith a 1 downwardly projecting lug `on its :bottoni tace, oi..a-ftongiie operating rod connectedto said lug, :apivoted tongue operating lever connected tosaidrod:andfadapted toreciprocate said rod tovsivingsaid tongue, means for 'permittingilojst motion v.between said operating lever and-said tongue operating' rod, Y and. other; ineans operatedI by Ysaid lever during the lost motionl .movement adapted to lock said tongiueinlposit-ion, said means comprising a locking bolt-mounted for -reciprocatory imovementfin said .switch body and being provided at its l'fr-,ee Iend l-ivith a head portionadaptedtofengage the side face ot "saiddownwar'dly projecting .lug on-said tongue, Ysaid bola/having its rearend connected by a' balland socketconnection With rone rar-m of la 4horizontally movable bell crank lever pivotallyfmounted insai'd switch body, the otlienend-ot said `bell cra-nk leverl being connected by suitab1e y links to a horizontally .I movable manipulating bar, saidbar having-*eachfend pivotally connected toyoneI arm of ay bell. crank `y`lever,

Vsaidlast named bellcrank levers having their rfree.y arms f provided with open slotsiand a connectingfpin projecting fromv the side of said tongue operating rod adant-edftoen igage inwsaid-iopenslotsin saidbell cranks #duringlthe :lostinotion movement of :said

rod1 thereby operating said bell cranks,

manipulating bar fand connected mechanism to r cause the operation et said locking bolt prior toi the movement ,of said switchtongue.

i2. The combinati-on-Witha tonguefsivitch comprising al suitable'bodyfportionand a tongue adapted'to be'sn'ung from-side to yside thereof, said tongue g being IYprovided with a downwardly projecting 'flug on its .bottom facevo of fa tongue goperatii-ig-rod yconnected to fsaid lugaajpi'voted tongue operating lever-fgconnectedfto said rod andadapted to reciprocate said i rod to Y swing f said tongue, means Jfor permitting lost motion .between said operating lever and said tongue operating rod, and other means operated by said lever during the lost motion movement adapted to lock said tongue in position, said means comprising a f, locki-ng bolt mounted for reciprocatory movement in said switch body and being provided at its free end with a head portion adapted to engage the side face of said downwardly projecting lug on said tongue, said bolt having its rear end pivotally connected to one arm of a horizontally movable bell crank lever, the other arm of said bell crank lever being connected by a suitable link mechanism to a horizontally movable manipulating bar, and means adapted to connect said manipulating bar and said switch tongue operating lever during the lost motion movement of said lever to cause a reciprocatory movement of said manipulating bar and operation of its associated mechanism to thereby operate said locking bolt prior to the operation of said switch tongue.

3. The combination with a tongue switch comprising a suitable body portion and a tongue adapted to be swung from side to side thereof, said tongue being provided with a downwardly projecting lug on its bottom face, of a tongue operating rod connected to said lug, a pivoted tongue operating lever connected to said rod and adapted to reciprocate said rod to swing said tongue, means for permitting lost motion between said operating lever and said tongue operating rod, and other means operated by said lever during the lost motion movement adapted to lock said tongue in position, said means comprising a locking bolt mounted for reciprocatory movement in said switch body and being provided at its :tree end by a suitable link mechanism to a horizontally movable manipulating bar, means adapted to connect said manipulating bar and said switch tongue operating lever during the lost motion movement of said lever to cause a reciprocatory movement of said manipulating bar and operation of its associated mechanism to thereby operate said locking bolt prior to the operation of said switch tongue, and a fiexible stopI for limiting the movement of said manipulating bar.

4. The combination with a tongue switch comprising a suitable body portion` and a tongue adapted to be swung from side to side thereof, said tongue being provided with a downwardly projecting lug on its bottom face, of a locking bolt mounted for reciprocatory movement in said switch body and being provided at its free end with a head portion adapted to engage the side face of said downwardly projecting lug on said tongue, said bolt having its rear end pivotally connected to one arm of a horizontally movable bell crank lever, the other arm of said bell crank lever being connected by a suitable link mechanism to a horizontally movable manipulating bar, and an operating lever adapted to reciprocate said manipulating bar to operate its associated mechanism and said bolt.

In testimony whereof We have hereunto set our hands.

JOHN V. STEWART. FRANK G. WERTZ.

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