USRE17346E - coffey - Google Patents

Description

July 2, 1929.

l. E. COFFEY TRANSMISSION CONTROLLING MECHANISM origina F11ed Aprn 1, 1912 4 Sheets-Sheet l 1 lNvENToR ffl/en E. Coff] ATTORNEY July 2, 1929. 1 E, CQFFEY Re. 17,3746

TRANSMISSION CONTROLLINCT MECHNISM original F'iled April 1, 1912 4 sheets-sheet 2 {NVENTOR 4wmnas Es; 4

. ffl/en E, Coffqy WM W July 2, 1929. l. E. coFFl-:Y

l TRANSMISSION CON'llOLlLflNG' MECHANISM Original Filed April l, 1912 4 Sheets-Sheet "5 7A 16 54 @9 f6 www M2 INVENTOR frye/7 E. Coffe] ATTORNEY July 2, 1929.

1. E. COFFEY TRANSMISSION CONTROLLING MECHANISM 1912 4 Sheets-Sheet 4 Original Filed April l rllllllllllllllllllill/lilik INVENTOR we/1E Cffy BY ATTbRNEY Reissued July 2, 1929.

'frweitem?Iresuelva-clioFreenewsy EMaa:osmmssivr:

v My-inventilom relates-#tounew an'dmseful' i111- i'provements 1111i poweratransmission .meoh'av nisms #for meten ivelueleswand--noeans'j,k oraoon t trollingthewsametlaefoloeotm'ltrlyfaiilveni itiontislfto improve the 'oenstmiotionf and Iain'- eie ase"v tlaeyefli'cien eygof fthe-s controlling meehanism fol-transmission gewin-g',

Alfurthen ob'eetafot nyainventim is toipro.-

vide y lneanzsmfor's changingthe fi: gears -iwithout lthe'useiofftlie`ordinarychange gear lever and Hgate.` e A A-lfulrther robjeetof my invention-1s toppro- `vide a contlollingsi mechanism Whiehy -f e1imi natesajalllr possibilityfl oli;changing-` thergearing y A untl-,len object btp-my inventionis-tompror Vide meehanismf that `is operable yirrespeetiveotthepositiom ofwtheelutehpedalfto preseleet .-a @subsequent gspeedslratiovofathe trans# missio'n mechanism; .i t

A "fnnthergobj ect offnyyinvent'ionris .theypromotor vcai' `With, my mytra-nsmi ssion mechanism better sliow"`myinventionl; t

applied thereto', parltsibeinglb'ken aWayK-to- .Fig '2 isfga,.central.ilongitudinal` seetion` tliroligli the caslngs enelosmg "the Kcontrol meeli anlslnpi'opevzand thegtiansnnsslongear-l llizgf18-fis aperspeetiveof:theftumblingzshaft I i .wholiis tui-ned.y by thel quadranti lever ato se leotlthe desired gearil 3 isa@seetonfonA the 'Fig tis ajfi'agrnentary seetiongonftheline 5 is @longitudinal sectional Viewshow-1 and the manner inwwhieh they` operate inoon- ,neetlon* with 'they Control 'mechanisnig` hFig. Gris a top plan" of thequadranhand quadrant leven by uneans of :which the' selec- ,tom of they-gearing is accomplished;

y the lever `handle beingv f shown. 4'inw `section 'to lining outA the eonstruotion of its looking Referring more especically` to fthe xii-avv-l inge, inA which `similar reference' f nmnena'ls designate Corresp ending4 parts throughoutg.` 10

designates a conventonalwol'ml ofrimotor'iveprovided' with :the `usualf-lyyWh'eel v13 and cluteliylt, lathe drive Shaft v'and 16 -iclesignates .-as `a. Whole the: lcasing of Tiny differentialfandr control nlechanism` which; as shown, is positionedi iat the -f wjunetune of "the .i crank shaft 12and drive'sh'aftfll i ilieferrng more @specifically to the 1 transmissionsmeelianismylu. desi gnates the;` casing of ftlie `tnansmi'ssionl mechanism: `:proper 1 and joulna'ledin'ltlaefront Wall'offthis easingiis `the -free fendf'i of theY erank shaft KlQfWhi'eh i' is preferablygpmvi ded with a socket 18 shaped tolreoeive fthe reducedi terminal l9rof'the` `drive shaft 15, wvliiclifshaft is'jou'rnaled inthe-back Wall of `the/easing :ini: zubearing 21.? .'Keyed y upom thatv portion of the rerankshaft lrwithin thetcasingds :a :spur gear' 22, while'mounted for" rotation uponthe drivesha'ftw'l' lare spur gears :23; Qllwand 25, the0,ppo'singl faces! offithe gears '22 and -QBwandaof thegearsrt anfd 25 being-recessed"oltthe'reeepton oit the clutch fingers-2610i clutches ,127i 28 'Which are slidably keyed upon!` the-drivey shaft.;y l

-1 Joihlma-ledf "in aligned bearings .L 29 formed.

in` the -i easing 17 "Liss a j aok shaft v"BOf which' extends` in@ parallelispaeed relation :.toI thea dfiive stub shaft 36, Said latte "gear inrturn'flnesl1ing 'Wth'theygear of theidriveishaft'. l f

f n Slidlably mountedin'suitable? bores formed in'j :l1e -f-1"or1ty and back `Nivalls:-of'tlielieasing 117 aine, A,f `elllltclu ``Operating rods; Sie :and y38; tle

former of which is provided with an arm 39 terminating in a fork 40 engaging the clutch 28, while the rod 38 is provided with a similar arm 41 having a fork 42 which engages the clutch 27.

As will be seen by referring to the drawings if the rod 37 is moved forwardly the clutch 28 will be moved into engagement with the (rear 24, locking the same upon the drive sha t, when the vehicle will be driven through the gears 22, 31, 33 and 24 forming the low gearing ofthe transmission mechanism. If the clutch 28 is then released and the rod 38 moved rearwardly to bring the clutch 27 into engagementwith the gear 23, the drive will be through the gears 22, 31, 32 and 23, forming the intermediate gearing of the transmission mechanism. If, then, the clutch 27-is moved out of engagement with the gear 23 and the rod 38 moved to b-ring the clutch 27 into engagement with the gear 22, the shafts 12 and 15 will be locked together and the drive will be direct from the crank shaft or on the high gearing of the transmission mechanism. If the rod 37 is moved rearwardly to bring the clutch 28 into engagelment. with the gear 25, the drive will be through the gears 22, 31, 34, 35 and 25, which is the reverse drive.

My present invention relates primarily to the mechanism by means of which the clutchoperating rods 37 and 38 are reciprocated and the description ofthe mechanism above given has been introduced merely to render more clear the operation of my device.

As shown in the drawings, the top of thc transmission casing 17 is open and secured upon the top of this casing is a casing 43 which incloses the controlling mechanism proper.` Secured to the upper portion' of the inner face of the rear wall of this casing is apair of spaced brackets 44 and 45 and centrally pivoted upon these brackets are cross bars 46 and 47. Each of these cross bars is free to swing upon its pivotal point andthey are connected to therods 37 and 38.1'espectively in such a manner that such swinging will be communicated to the rods toreciprocate the same. I have illustrated in the drawings two separate and distinct means for connecting these bars to` their respective rods, one means being shown in the connection between the bars 46 and the rod 37, while the other means is shown in the connectionbetween the bar 47 and the rod 38. Bolted or otherwise secured to the cross bar 46 by one arm is a Z-shaped lever 48, the free arm of which-is bifurcated to form a fork 49whieh engages in the groove 50 of a block 51 Carried by the rod 37. Pivotally secured by one end to one end of the cross bar 47 1s a link 52, the other end of which is pivotedupon a trunnion 53 formed upon a block 54 carried by thel rod 38. As will be seen, the turning of the cross bar 46 will act, through the lever 48, to reciprocate the rod 37 while the turning of the cross bar 47 will act, .through the link 52, to reciprocate the rod 38, the direction of movement of the rod in either case depending upon the direction in I with a bevel gear 61 by means of which the shaft may be revolved asA will be hereinafter explained. The other endfof the shaft is Teduced to form a trunnion 62 which is journaled in a socket formed in the end ofa bolt y 63 which is threaded into a tapped bore formed in the opposite side of the casing.

= The portions of the shaft 59 beneath the push rods 55, 56, 57 and 58arev notched as at 64, 65, 66 and 67. -As will be seen when one of these notches is directed upward, the corresponding push rod will tilt down to scat in the notch and will, therefore, besupported at a lower level than the remaining push rods. These notches are formed in the shaft in staggered relation and in suchv a man-ner that, in oneposition of the shaft, all of the push rods will 'be supported in raised position and in such a manner that but one push rod at a time can be'lowered. In order to insure the proper seating of the push rods in the notches of the tumbling shaft 59, I have provided leaf ` springs 68, 69, 70 and 7,1, which, as shown, bear upon the push rods intermediate their Alength and exert a constant downward pressure upon the'same,'th`e springs 68 and A 69 being securedl to the pivotal point of the cross bar 46 by one end-and' having their opposite ends bearing upon 4the push rods '55 and 56 while the springs 70 and 71 are each secured by one end to the pivotal pointof the cross bar:v 47 and have their free ends bearing upon the push rods 57 and 58. As shown, the free ends of these'springs :are enlarged and `provided with downwardly-extending llt) spaced pins72,'fwhichf bear oneupon each side of thepushro'ds and so preventdisengagement of the springs. i

Extending longitudinally of the casing' is a pair of parallel, spaced guide rods 73,

Vwhich'are passed through sleeves 74 carried by the ends-of a cross head 7 5, which is thus mounted for reciprocation longitudinally of the casing.v The upper face of this cross head isV provided' with transversely extending' grooves 76, 77, 78 and 79, in which the push rods 55, 56, 57 and y58 restand which serve` tomaintain said'rods in proper spaced position softhatf` theyfiwill seat'fin thirl respective f notehesoffv the vtumhling:fshaft` Eaehwof@ thei push rodsi's forni'ed-with afshould'erf()*"eX-s tending `fdo'wnwardlyp` nom @its ylower' f face; zwhieh is slidaible' through. thevgroove ofi ithe crossthe'rd ff'when'" theitpusha rediris@y in i nominal@ position butv whiehfwill engagewvith theierossi head when :the push- ?rod isi seateclin iits notch in the tumbling ishaift y595i thseI shoulders be"-` vllingfforrneel `atrav ipointibetwe'en the" erossfliead if i and" thefpivoted endsof .thev pushfrods".` Eaeh'zf pushz rodisi also I'Jroi'zided':Iup'on'r the@ otherside e of'- the Ierossuhea'd'Withal transversely eXtend-= i ingipin i813? t-hei ends of"` `which eXtencl/iuponi* J Aeach: side 'ofi the: pushlrodfinipositionto envv gag'efagainstfthe` 'cross hea'df i-wh'enj'theflatter f is drawnfltowerd the' fronti end: off the easing-;

Having s thus ydescribed ri "the sxeont-rollng meehamismi proper; I "will new` I'describe"the Ifmeans by fwhiehf' said Imechani'snn :isi ioperatedff'i bythe dnilver." i Extending transversely ofl'the vehicl'ejfzan-d ijournale'dvdn 1i "suitable bearings-:,-

carried* ilthe` f frame isv "anshat V82, q whichI 'f cari'bes a sleeve 83"'vp''rovide'd` atei-one "end" with =-f 4 downwardlyiextexlrdingyintegrally `fformed i othereruit-"ohthisxsleeveisprovidedv Wthan upwardly*u directed;y .integrally yformed' =a1=ni rf "86, which is engaged by the lateral eXitensionwf 87fof' an "upwardly directed. arniil 88;" formed integrally nWithone 'end ofY a"'se'eendisleeve 89;A f y Whi'eh is alsofearrijed-byfthe'fshmftland the' other end loffwhieh@ is AprovidedFWith3y an upf" if `f Wardly direete'di arin'f-:Qgitotwvhieh ris/pivotally eonneeted 'oneifend` Tof the brake'a'ro'd'f91; ThisA 1 sleeveE 89'is lprovided 1` 'intermediate itsiiV length,P withl anrint'egrally"I formed ",ootf'pedal` 925': by means f of 2 Which-5i the sleeve- @may be i turnedy to "apply 'v therfbrakef and fto simulta-Hy 1 neously* release:k the clut'eh'i 14:1; Rotata'bly il mountedfaboutithe sleeve'i-'is` a sleevei;E onev end` of' which" is yprovidedg'jwith an supwandly directed "armiQi" having.riaiflateralI extension- 95," which falso@ engagesrevithiy the arm :86?` of the `fsleeve 83: Therother fendo this sleeve 'is' "-"f providdwwith an i integrally nformed'famn` 9 l y to whichis fpivvote'd onef'end of* a connecting@ rod-97 theiothenenfd o'vv'vhiohi isV pivoted to' rtheifouter` rend: of #a Y rody 198; *5 which! is -'slidably 2. 1 inountedI fin" af'fbarirngi-:formed in: the @fronti f- :Wall of' thecasing ,V43 and the other endvioiul which iisl rigidly Jseunedto their:entraiportiony 'is providedintermediate its lengthwith an' upwardly directed?` integrally formedf foutu pedal *100; Iby means' l'of yfwhiehfit may be rei tatfed'i'to simultaneously `1releasthe eluteh 141- o and 5to fdrawthe;crossy headvi' f towardl :the Etumbling.ishaiiit592i* y s As iameansiforrotatingthe ti11iibling-slia'lit`: 1 59,-1 haveprovided'fa shaft 5101", one en'dofi which: is jou'rnaledfin i a suitable housingH 102,-' formed" "abouti fthe; beve1"'1'gear G1-,i .Whilekthe 1f ried ybythe easingll* ofthe-isteering Colunmi Thatr end fof the shaftl fioairinalled"inithefhours` f ing` 1.102I isi-provided :rwithi a bevel? gear i105; 1 Whiehrfmeshes Withthebevel *gears iGl' fofi fthe tumbling ifshvft rwhile :'thel l"other f end of= the i -T0 shafti 11011' isV yprovided i with i" a :106"\Whioh" meshes with? a gear: 107" Carried by the` lower end oi"` a shaft 1108 which *endl is ournaledkin la. bearing-109; also canriedby the casingflOi- 1 of?thewfsteeringi'eolunin.1The free vend :of ther T5 shaftE '210811'extendsi throufglrf'a suitableriy bore formed atitli eent'e'wpait 'ofy a qua=drant 109gff which is seeur'ed'in 'plane by a lClampingkring '110 fwhieli engages aboutitheisteering eolunnni` immediately below thef-steeringifwheel111150 the-*lever can lbe swungt`0 the notchf 118.= The *95 quadrant is` provided at' each end with an l"up-' Wardlydii'eeted-lug1119;'Whiehserves to ypreventexees's'iye movement!" bffthe' lever. f

Inan operation; suppose the gearing' to'be s in 1 neutralposition'u `With #the quadrantilever' 10U 112'ati1th'e inoteh1`114j with the ff enginel rune i ning; and Withg'thelelutehMcltlirowniiniy y Inl' this position,-tliepush rods are all supported f bythe tumbling shaft 59 in vtheii""raised :posi`-` tion and fboth of thetransmission 'Clutches l27 305' and'QS are Iiin inoperative'lposition; Inof power thereforebeingitranserredtothedifiveshaft; The? lever1 =112 lis then swung to fthe notch ='115,- Whielr'indicates loW-*speedf and which"aetuaites l which releases the lclutch? 14` 'and' s'iinultaney-` ously draw-s theeross head-75 yforward"be'yond thevf shoulders 80" of=l itlie 1 push" rods,l allowing 'f' the vtuinblingshaft. Thehpedall is their" released,v @throwing fthetclutehlt `and rinoving 1 the cross head, 5 toward the rear-vend oithel 1' 'easingl :'-1 A'sjthe 'Cross headw'nioves, it engages against'thef shoulder 80* ofthe pushfrod""S65-".120

fol'g saidy rod: toward the rear` off the eas-1 inglandvrot'ating :theecroslsn bar 46 to throw?? the= transmission clutch? 28 vinto engagement Withftlifgear ztofgiye a lowlspeedf drively ingtout Fthe clutch '141,1 andfdiiawing fthe ylei-oss 130 head forward, the cross head, during this foiward movement, engaging the pin 81 of the push rod 56 to draw said rod rback to normal position and thus throw the transmission clutch 28 into inoperative position. The clutch pedal 100 is then released to throw in the clutch 14 and to move the cross head toward the rear of the casing, during which movement it engages with the shoulder of the push rod 58, which, in the meantime, has fallen into the notch of the tumbling shaft, forcing the same rearwardly and turning the cioss bar A17 to throw the transmission clutch 27 into engagement with the gear 23, thus giving intermediate speed.

When desired, the high gear can be thrown in by moving the lever 112 to the notch 117 and again operating the clutch pedal.

If, when the gears werel in neutral position, a reverse drive had been desired, the lever 112 would be swung to the notch 118 and the clutch pedal actuated.

As will be readily seen, both the brake pedal 92 and the clutch pedal 100 throw the clutch 14 into inoperative position, but the operation of the brake pedal in no way affects the gearing of the transmission mechanism.

It is to be noted that, when the clutch pedal is actuated to throw inthe main clutch, the cross head will be actuated. and through the mechanism hereinbefore described will place a selected set of the transmission gearing in position for operation. When the clutch pedal, however, is operated to throw out the main clutch, it will move the cross head,` inthe opposite direction yand return such selected set of transmission gearing and the connecytions therefor to neutral position, and this returning of such parts to neutral'position is accomplished irrespective of the position of the selector mechanism at such times, that is to say the selector mechanism may be in selective position for any other of the sets of transmission gearing at the time a selected set is going to neutral position without interfering with `or prev-enting the return of such selected set. to neutral position.

Further, it will be noted that, when the cross head is diawn toward the front of the casing, it will, by contact with the-pins 81, move to neutral position any of the push rods which mayhappen to be out of such neutral position. f

Another advantageous feature incident to my invention is thata certain set of gearing may be selected while the machine is running, and another set of gearing is in position, this selection taking place prior to changing from one set to the other set of gearing and without affecting the gearing in use. For instance, if the machine be traveling on a Vlevel vroad with the high gearing in use and is approaching a hill or rough stretch of road where it is desired to use the low gearing, the quadrant lever may be movedto the low position at once ing to low gearing.

vshiftable elements ratio.

to select such low gearing, but the latter, of

YVhen the hill is reached, it is only necessary for the operator to actuate the foot pedal as before described, to make the change from high gea-rv If, however, upon reaching the hill, the driver decides te continue `on `the high gearing, he may do soby failing to operate the foot pedal, as themcre fact that he has selected the low gear by actuating the Vquadrant lever does not effect the operation of the transmission mechanism unless thepedal itself be actuated. `Thus, it will be seen that a desired set of gearing may be selected prior to changing to the saine and while running upon another set -of gearing and without affecting the latter...

It will be apparent from the foregoing-de-` scription that I have provided va simple and eii'icient controlling lmechanism progressive type adapted and arranged to of Vthe Y operate a transmission `Imechanism of the s-e-.r`

lective gear type without theaid of the ordinary change gear leverand H gate, the operating mechanism consisting wholly of the clutch pedal and the quadrant lever, which latter is se positioned that it maybe operated without removing the hands from the steer-` ing wheel. f

It will furtherl'ie-seen that `the quadrant lever 112 may be moved to any position at any time without changing any gears in the transmission mechanism until the clutch 14 is released and then thrown` in again.

The lever 12 and its connected parts comprising the tumbling shaft 59 constitute what maybe termed a universal selector,` since it is freely movable atl all times and it may be operated to select` a subsequentspeed ratio of the transmission mechanismwhether the main clutch is engaged or disengaged and whether either ofthe shiftable elements of the transmission -mechanism is in its opei'ative position or both elements occupy their neutral positions. It is to be understood that the term universal selector mechanism employed herein refers to selecting mechanism that may be adjusted at any time and iricspective of the ypositions ofthe clutch and the to select a subsequentspeed If the lever 112, is actuated to one ofthe I speed positions otherthan that in which the transmission' mechanism is operating', at any time during-the forward movement ofthe clutch pedal, that is,.during the 'disengage- `ment ol"` the clutch *and the returning ofaI shiftedfelement to itsfne'utral positioinfthe position of the lever will determine the speed ratio secured by the return movement of the clutch pedal. This result will be secured regardless of the fact that another speed ratio had been selected before the actuation ofthe clutch pedal.v v

imm

` yThis .feature is .fof :great advantage. inilthat .it` r.permits the .ioperatonato select the. .speed ratio at any; time =priorf totheV initial shifting movement of. ya..previonsly selected element. Fonfexample, 1. iti may. occur that, in.; driving,

when trafiic is'. oongcstedg; the-can is `.stopped in: high-speed gear. With zthe clutch. diseny :gag-ed.y .and .i the Iselectonset for. Elow. speed. in

'ianticipationi of. .again lmoying. `fornardl .In lcase itv is. necessary.. to reverse 1 the.v car-.before again going forward,".` it. is.Lonlynecessin'y` to fset'flthelever toithe reverse notch 118,com- @ple-te#the..forwardtmovement of `the pedal, .regardlessy .ofI Vi ts i. :intermediate position, and release. .the/pedal. tovsecure the .desired voperation..f5-1ff1iti werefunecessary .to-:release: the pedal. to engage. the"olutchbeforel4 the. selector Were .operative^,f the result.. Wouldbe either. to cause.' the. car.` to move k forward or. to .stall` the engine. v .f Y p i lf2 the` selector levercis'l actuated duri-ng the returnnmovement .ofzthe .clutch pedaly to yits .normal position, that` isgwduringf the shifting of previously `selected. element, the..effect mayv `bei .toy liftlth'e. .pushl rod. corresponding to the element being shifted to such-extent.' that thel shoulder 80 isout iofA engagement With the cross..li'ead :75.` .Iny such .case,. the result. isv to leave l the shifted 1 element. in?y a partially. engaged .-po'sition',`but `this condition is immaterialifthe clutch is notengaged. The forward .movement ofl the clutch vpedal operates toreturn.L the partiallyfshiftedy element tonen"- tralI positionuand.thereturnlmovement .of the pedalI securesthe speed ratio f lastiselected.

It .Willibe apparent; therefore', thatv thev selector. mechanism .may beoperated at any time irrespectivelof thevposition 'of `the clutch pedal.. to. select ja.: subsequent .1 speed.l ratio: If

' shiftimay be completed,ifdesircd. c Itis then necessary to return the `cross head to its extreme left-hand position, as viewed in Fig. 2, to be in position to engage the shoulder of the rod corresponding to the selected speed ratio.

It will also be seen that the clutch is always released before any of thetransmission gears are shifted and that the gears are always in position before the clutch is again thrown in.

It Will, of course, be understood that minor changes in the details of construction may be made if desired Without in the slightest degree departing from the spirit of my invention, which', broadly speaking, consists of a f control mechanism for a selective gear .transmission mechanism operated and governed by a singlelever and the clutch pedal.

i Ifclaim as my invention: n

l. In. acontnolling.. mechanism fonftransnnssiomgearmg. f. the.. combination. with 1 re- .ci'procally mounted. .powerftnansmissionIf elements, .4015. .pivotally mounted..eross bars,.con necting means .betiveelrald .cr.oss..bars ,and

transmission elements, l.push-,fr0'dsueach connected.at.1.one;,endtojoneiend.lofsonev 015..Salid cross bars, means tonlowermg. .any,; of.. said push bars rat .selectedti mes andmeansv forre- -ciprocating said lowered puslabar.

\ 2..-.InI a. controllingamechanism-.for trans 'missionugearingy the combination vwith re- -ciprocally mounted powerstransmissionirelementsfof movably .mounted.ba1s,.1neans oper- .able' iby .l the. .movement of said;l .bars .for reciproeating..said.transmission;elements, push rods.l each i. .f moviably.` connectedl iat. one. end. .to one end. .of one ofv saidv .bars, .a cross l nheadureciprocally mounted below said'. upuship. bllS,

means'. for supporting i ,the .free ends-cisaid .push rodsend.V adapted tobeopenated .to lower ay selected. .one xofy .said ypush l. rods. upon. the cross head, eachirod having .means` for rengaging. the cross head.. when, such. rod iis-lowered =and .means for .ireciprocatingf the.,cr0ss head. to actuate theI engaging rod.

3J In a..controlling.mechanism.. for .transmission gearing, .fthe .combmation .W1th,.1re

ciprocally. mounted;powerftransmission ielements, 'ofl cross. bars pivotally, `m'mnto-:d inter? mediate their.lengthy ttor swinginganovement, ineansioperable by. swinging of lsaid. cross bars for reciprocating said transmission elements, push rods each. pinoted" .atenei end ,tonnel end ofgone `lof said..cross. bars, .eachz cross. bar-...having a sh oulder.v formedat .the .under side .thereof, ,projections extendinglatenally.from. .each

push rod, a transverselyextending shaft. .for

supporting. .the free] ends ofisaid...p,1 1sh. rods, said shaft having notches intowhiclncertain of the :push `rodstfall Wherrthef shaft isinnertain.l .pesitiomA .means iforfk rotating f .the s shaft through; predetermined .angles,'f across `.head positioned. beneath. the .push .rodsrin .position toben engaged by the shonjlderaof .a rodavhen theilatteriis lowered. andthe vcross headmoved in. one .directiom-.saidicrosshcad. engaging I.the

projection of said-loweredjrod. when'movediin the opposite -direction, and means for reeiprocatmg the Cross head. f

4. In a device of the class described,fa gear shifting device comprising a movably mountcd finder vand pivotally mounted members supported and controlled thereby.

5. In a device of the class described, a gearshifting device comprising a movably mounted finder, pivotallyA mounted members supported and controlled thereby, and an actuating lever (3o-operating with said members.

6. lIn a gear-shifting device, a movably mounted finder, pivotally-mounted members normally supported thereby, means for operatingsaid members, said finder having a notch, and an indicator operatively connected.

with said iinder for setting the same.

- 7. In a gear-shifting device, a movablymounted finder, pivotaIly-mounted members normally supported thereby, said inder having a notch, an indicator operatively connected with said finder for setting the latter, and an actuating lever co-operating with said pivotally-mounted members.

8. In a deviceof the class described, a varia 'members movable with said elements, a selective finder cooperating withand supporting said pivoted members, and an indicator for co-operation with said finder. v

10. In a device of the class described, a variable speed ytransmission gearing having a plurality of shittable'elements, means for shifting said elements embodying pivoted members movable .with said elements, a selective finder co-operating with said pivoted members, and an indicator for co-operation With said finder,.said finder having a notch into which the selected members falls by gravity.

11. In a device ot' the class described, a variable speed transmission gearing having a plurality of shiftable elements combined with a foot pedal, and connections embodying an actuating lever, and a plurality of pivoted vertically-movable members co-operating ywith said lever..

y12. In a device of the class described, a variable speed transmission gearing having a plurality of'shiftable elements combined with a foot pedal, and connections embodying an `actuating lever, a plurality of pivoted members co-operating With'said lever, and a movably mounted iinder for supporting and cooperating with said members.

13. In a device of the class described, a variable speed transmission gearmg having shiftable elements, in combination with an able with said arm to different positions to pre-select the different driving connections,

and means between the said elementsand means disposed to be actuated upon the operat-ion of said movable member to effect a connection between the shifting means and the selected element to establish a predetermined driving connection upon the operation of the shifting means.

16.` I@ear-shifting mechanism comprising an actuating member, shiftable members, rodsV connected to the shiftable members, means associated with the actuating member tor moving` the rods in either direction to place said members in driving position and for iii-st returning the rods to neutral position before moving the latter to place said members. in operative position, and means operable at all times for selectively controlling the direction-of the rod to be actuated.

k17'. In a motor vehicle, a variable speed transmission gear having an element shiftable in two directions, a plurality of members connected thereto, means operable independently ot the position of said element to selectively control the direction of its actuation and means comprising said members for actuating the element in the selected direction` In testimony whereof, I have hereunto subscribed my name this 22nd day of December,

IRVEN E. COFFEY.

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