USRE1414E - Self and dayid heatoxx - Google Patents

Description

OFFICES? Tm -yitf1LtiAMs-, or P'novinifjsca, RHODE lIsininnAssieme 'fro HIM- sELE Ann DAVID HEATOMQD..

'fQIJ'QPBOVEMtNTIN MontA or-oNvERuNs REc|PRocATpNG mio RQTABYMTIQN,

. ,s l@incitant'infiniti; Partnr Leiters Partant-[31,64% dated'MarhS, isti; misgaan@ Lalanma' February17,l863.

To 4alb whom it may concern.:

jiBe' it" known'fthat 1, TURNER NVILLmMs, otProvidencef in-the county of Providence and'Stateof Rhode yIsland, have inyented a newfandusefnl improvement iu the devicesk for eonverti'nga reciprocating xlnotion'into a cntinnonsfrotary motion; and 'I do hereby" d'lre that -.the followingis'a full,'elear, and

enactjldescripition" of the same, reference being had toI the` accompanyingdrawings, inaki-ngpart of this specifica-tion, in. whichl l `I Iignre Ilis an elevation of my iin'provedde- Avifce"complete. ."ligs. 2, 3', 4, 5,y and jare dei'tfl'ihot the-saine, which are referred ,to2-.as the "fjdescrptgn proceeds. y letters 'of reference indicate correigned vto i super/sede lthe Wellkno'wn crank k"ffo v coiverting'the reciprocatingfmoton of a ti'eadle'or otherfdevice ,used into i the continr yuous'rotary motion ofa shaft or' wheel,'in fordert .to overcome certain inherent objections ,which disqualify the crank for operating 'certainiliinds ofvmachinery successfully. In sewble tog-turn the driving-shaft in the wrong jlfiriecti'qn, andlbyisodoing reyi'erse the ino- -tional y"nd working 'off the. machine, which ifsl-, 'urioustotheniachine and dex-anges the Noria ,Th'e'crank is also liable to stopon a "dea'd-center or extreme point 'of its stroke,

in which position ',tadieaicne and unassisted. The ,'inoticii of fhl lGllfllkirs unequal in passingt'rcm 'one end its'stroke-,tofth-e' other, in consequence of Whichfitzis extremely difficult tol operate thel niagcbfne slowly yyeti positively, which move- 'v vabsolutely necessary in. performing. dsrofwork. i v

Too yvateit veseandothero bjectonsin the rkf"avdoiprdue e @0 fiefa shaft or wheel i'nonedirection only, .which shall be very slow yetpositive', or as 'rapid as can.- be produced by acrank, is the object of .fniytinfventioinwhich consists, first, in t-heuse.l Vmii' two yrocking disk-'plates or arms, arranged with twoxed circnlaijjflanges upon the s h'ajft4 be resolved second, in the use of trvo ntinuous "rotation angles from such shank tionl may t-ionpawIs or their equivalent for binding the j dsk-plates to the circular flanges atlthe proper y time Aby the rockin g movementl of the' 'said disk-plates, and otherwise' operating substan-.- ti ally as herein described; third,`in the use of a;

pair of curved-connecting-rods--tor'rocking the two disk-plates in opposite directions sin'nul taneouslywith the greatest range of motion by thereciprocatin g motion-of a' treadle or other*v device used, substantially as hereinafter speciiied; fourth, in the use of a springlbntt'er or the'equivalen't thereof. for limiti-ng Ythe move- .ment of the pawls'to "prevent their remaining v on 'a dead-centeni-substantially as hereinafterspecified, i I

To enable others. who are familiar with ma- 1 t giliinesi of this character 'to' ascertain the nature and'extent'ofniy invention, as .welles to make use of the same, l will proceed'to describeit's arrangement and operation.`

4,.`and '5, are two' disk-platestted to turn easilyju'pon the shaft L, and g g are two flanges forming part of the' wheel G','which is secured.

byits hub to the said shaft, 'the said diskplates and ange's being arranged relatively each to the other,"as shown nFigs. 1 and l3, each'disk-plate .beingl formed with a circular `recess, p, Figs.3' and 5, for theyreception of` [the hub of the hanged Wheel in ordery thatthe disk-plates'j may operate `directlfyT beneath the anges g' g and, close to the Qplate G of the it cannot be started by --the In. the annexed ilrawings,'E and S', Figs. i,

wheel, invwhich position they are held by the iixed collars k k on the shaft. Between each disk-plate and its iia'nge I interposeafrictiony.

4 Figgs-l 134, and 5,v whose ofice is to bindthe ,disk-plate with its-Harige' when` the-diskplateis-lturned in one the shaft, andto release y disk-plate from its' flange when inoved in an'l pawl, c and s,

direction upon opposite direction:

The friction-parvis, v

a 'straight shank,having a bearing at V in the disk-plate and a foot-piece extending at right the in'nersnrface ot the ange g, Fig. I, and is shed with leather tocreate vfriction in the' v(latter) bearing, in order that the binding ae be instantaneous and forcible, which.

which bears against f and disconnect-the as represented, consist'of is absolutely necessary in this connection and .which the peculiar construction of thepawls The distinctive peculiarities of arrangement and" mode of operation' of the -said -frictionpawls `areas follows: ltwillybe seen that the pawl e, for. example, Figxl, basan axis at V 7 in the diskfpl'ate independently ofthe axis of.'v thefdisk-plate'; that turning uponits said axis V thefoot-piece describes .an inclined curve,

as indicated by the dot-ted red lines with re'- spect to the curve -o't the iiange, g,andirregu larwith'the axis ,of the disk-plate; that the said inclined curve cutsjthe curve ot the Vflange' g' and describes a-.curve outside and bef yond the limits. 'of said cnrveg; tliatin-eon-- sequence ot' this independent movement ofthe 'pawlonits own axis, V, its natural tendency is to move in'a space outsideand beyondthatv to which .it is limitedbythe flange g, 'and that, bein g arrested and confined in 'itsI efforts to do so by-ithe flange y, the result listhat' the.

- foot-piece. of. v.the paw1 is pressed forcibly against-theange,,in doingwhich it binds... thejdisk-pl'a-te E to the flange g, which ellect is produced by turning they disk-plate'sin a given direction' on the shat't,and' in order tol control the action/ of the pawl when .the diskplate isfturned in au opposite direction to that. .necessary lorfproducin'g thebinding action for the purpose o f-liberating Ithe pawl and .eecting .a disconnection between the disk- .plate 1and theflange g, Imake n'se of 'a Vlin- "genor' stop, fri-,projecting from the disk-plate,

. in which'a..set-screw,V,orin lieu'- thereof aspi! ral spring or afproj'ecting piece .of india-rub-v Aber, is inserted, which by .contact with `the.

pawl determines the 'movement of the same in- 'jone direction and serves 'totrip the pawl and' carry it w ith the disk-plate inl the opposite direction. '.lhus, if the disk-plate E, Fig. l,

. be turned'upon the shaft L in 'the direction indicated by the arrow's, the set-screw vor its substitute will be freed from contact with or its frmerpressure upon oraga'inst the paul,

as shown, andthe pawl,being. free to turn on its ownlaxisywill instantly bind and connect the disk-plate z with the-'flange g, and if the. v motion ofthe diskfpla'te be continued a rotary rnotion will bviinparted to lthe wheelG '.a'nd the vshaft L,*an`d, it. then the disk-plate be' turned in the opposite direction to that ind-icatedby' the arrows, the binding action l'will be instantly. destroyed, the disconnection ot'.

the disk-'plate andits flange will be effected,

and-the set-screw lor-` its substitutebycolitact or apressure 'with the pawl e will carry it with the disk-plate if the movement he continued -nntil it'arrives at the point (relatively) from whence it first started.v This fingeror projection on'the disk-plate, with an adjusting device-as a `screw or spring-is essential for .properly controllingr the action otthepawl., L and in combination. therewith forms oneteature of iniprmement-in nl vinvrntlrm.l The' /mon swinging joint with the treadvle 1t. upper extremities of the said 'eolniecting-rods. y

said pawls, -it should' be understood, are ceptible of considerable modification without .chan-ging their nature or mode of operation.

f .T'lielpawl may-consist' of anroller ora ball' interposed between thetlange g and a. curved .incline surface on the disklplate, in which case the pointot' contactwitlr the curved incline.

.surface is the independent axis 7 of the pawl.

The paw] nasa curved incline movement with l .respect to thev flange g, the binding action 'is produced 'in' precisely the'. saine manner with thesainef'eect, and the actionrof such pawlis. of necessity controlled by a projection and adjusting device upont-he disk-plate, injall rc-V spects equivalent to the lprojecting finger-n and set-screw I, 'above described and fully shownjin Figs. 1, 4, and )fofl the annexed drawings. The pawl may# also consist of 1 -semicircular piece of metal or lialtdisk, intervposed between the flange g'andja .curved in- 4eline. or irregular'surface',as shown and (lescribedv by drawings 'and accompanying de'4 scription on tile in the Uni-ted States Ilatent' Oiiic'e with the originall papers of my 'application for Letters Patent No. 2,723, granted Yovember 12, 1861, for an improvement in- .cranks,'&"c. The pawll Inay also consistot' an. eccentric arranged and operating-substan- -tially as shown and described' injLetters .Iat .entNo. 36,263, granted' to. me, thesaid Ti'nf- I NER WlLLIAMs', and DAVID HnA'omd,

signers, "August 19, .IS-62,'fthe distinctive featuresof said pawl as above described being;v visible in each.case. The pawls'arewo'rked in Opposite directionssinm'ltaneously b v-nieans of apairfof 'c onnectingfrods, and J, the 11pper extremity of the rod I being pivot'ed b va 4wrist-,pin .to thediskplate E, and the v. upper Aextremity of. the' rod J being pivotedin like manner to the disk-plate S, 'the 'low.-r ^.\--Av tremity ofA the two rods 'beingv united in a coni- '1`he I' I and J are forlnedwith a curve, so aspro-enh brace theshaft, and thercbywork the pawls 4'with a greater range ot' motion than -eonld he obtainedit'theseconnecting-rods were straight. Y ln order to prevent the two 1n1wlstroin remaining on a dead-center or extrelnepoint ot'- tlie' stroke, -I lnake use ot' a springbntler, Il b,

Figs. lfand 6, arranged upon two proict'zting pieces, which are firmly-secured to the rod i", upon which the. treadlevibrates, and beneath the treadle by a set-screw., t, as shown, 'Ehe stroke or throw'of thet'readle is arrested b v comingin contact with the spring-bnler-b as theupperextremity of the rods approach the (lef.\d,-ente1's, alid the rebound result-ing t'roln such contact assists the foot in changing the strokeof the tread le.

. l It will .be seen tha-t in nsingn spring-bnl'- l'er to arrestthe throw ot the. treadle and thelcby preventthe pawls from' stoppingeon a dead-center'rsuch bni'ers may be arranged in a nnniberotways and the .sa-nn.- resnlt produced-viz., two collars ofi diarrubber in arrdnged'nboiilthf'efshilll "tl tithe artj ofthe rods rana mowed Statuary wnifmmtaasuena-sommarie ne "wlslwf mainframe? be movementf'f H ian-mgmv between the@ sigent- .ing the rods from comingtogether arrest'and l limit the throw qt' the-.paula but though these modilications ofarrangement may be ein-- ployed, I prefer thel arrangementrst .de-

' '5 scribed and lshown iii-the annexed'drawings as beingbestcalculated -to-arrest the more: men-tat the pointwhere the propelling force is exerted, and thereby relieve-the' working. .parts from the sudden strain and jerk consequent -upon the Asudden arresting of motion, 'which 'contributesgreatly to derange and weaken th'e machine. -As represented, the

iiangedwheelrG is calculated for a driving'- wheel, it beingvformedwith a suitable 4groove for -a round belt land with adatface for a flat belt, by means of which motion and power vmay be transmitted to other machinery.

1n the form"presentedtthe machine is ar-f i ranged for driving sewing machines the operation of which is as'follows: The oot of fthe. operator sapplied tothe treadle `inthe posi' tionfshown by dotted lines Fig.'1,"and a reck-Al ing motion. is produced by pressingdown alternately withthe heel and toe of the.A foot,

\vhich. impa'r.ts a reciprocating lmovement to the frepart ofthe .treadl e, to which the rods` ;I and-J areattached. If in the lposition shown in Fig. 1 the rear end of the treadle be pressed' 'downward the forward end is raised, and the .upward throw-is communicated through'- the rods I and J to the disk-plates E and S, turning- 'l said disk-plates onthe shaftL in opposite directions, as indicated by '.the arrows. Irlhis opposite 'movement .produces ran opposite effect in the. two pawlse, andI s, "producing in e the instantaneous binding action-before described with the flange g of the wheel to which lit communicates the motion reccived'from the treadle, causinglthe wheel to '.tnr'n in f thev di# lrection indicated` by the arrows. l-At the same -time the opposite movement of the-disk-plate S destroys the binding action` in the pawl e." and frees i the foot-'piece from close contact with the flangeg, and it returns to attach itself by th'e binding action in a position' i-n the rear of and near the point from which pawl Je iirst started, which attachment-takes place iiistanti y uponthe change of Vmotion' of the two disk-plates, produced by the downward stroke 'of the treadle, which next follows,'when pawl 4S takes up and continues 'the rotary movement of the wheel, at the same time pawle j retreats preparatory to transmitting a suc# cessive movement to the wheel ,-in its turn.- In this alternate propelling actionof the two frictionpawls no. perceptible variation from a'continuons rotary motion is'seen, the wheel` revolving steadily in one directionv only,

which direction may be reversed byexch anging a bl ser

friction-pawlse -and .-intd, thej rotary motion aan' wie. 1W

,movement,pt thetreaslle aad by rorkvg the crank vmay be' obtained, andas-the wheel is -of th-esewing; -partsis avoided which results from turning thedrivingwheel in the opposite directly to thelpoi-ntgfrom which itis imparted- -to the machine driven, the 'best efort of the produce a --very slow positive revolution, 'which is often desirabl'evin adjusting and reg'uin` correcting' any'` accidental drangement `places the positive revolutions in one direc- "trol of the operator.

Having't-hus' described my the particular construction and arrangement-- of the parts as described specifically' that I do pnwls when applied .to and binding with the ilan ges ofthe dr'v'ingwheelproper; but Iclaim any land all applicationsof such pawls for. binding an -osciliatingdisk-plate, or its equivalent, toy a fixed' circular Vflange upona shaftfor the purpose of propelling 'such shaft by a continnation of the movement which produces such binding effect, substantiallyas 'herein specified, lwhether such dange formsa part of the" vdriving-wheel or` not. 'N either do I. restrictclaim any and all constructions thereof ein- "4 bodying the essential features and operating substantiallyas and with thesame effect as stantially lthe equivalent'of the vor more or less effective.

friction-pawl's secureby .Letters Patent, is-".l 1.'Tne vcombination of two cular anges upon ashaft to be rotated, sull stantially as herein specified.

v2. -The use of which may happen. Finally, this mechanism' A not restrict myselfto the use of the friction;

myselfto the particularv construction ofthe Y herein specied,.be they in the form .ofrollers,"

balls, half-disks,v eccentrics, or any other subdirectionlfromthat intended. 'Agai-n as 'the force exertedupon the treadle is transmitted tion of aidriving--wheel in whatever capacity j it'may be employed' wholly under'the coni invention, I wish I it understood that I doubt-.confine myself to i What I claim as my'invention, anddesire-te f.-

,rocking diskplates or their equivalent withtwo xed cirtwo frictioupawls or their raffinata@ ammi msg i 'l jofthe wneeifesnu haft- 11. This mechanism is pecn-liarlyadaptedvto Qdrivin'g sewing-niaf j chilies, as'a'steady rotation of. the wheel: or vshaft" may be produced .with but a slighttreadle with its greatest yrange'ot' iitidn rate of speed'fully equal to that from the 4rotated in ione direction only, all derangementv v operator is transmitted in power to the machine, at the same time the driving-wheel is 'Y 4whollyr uuderthe controlof the operator to lating the working of.' sewin-g-inachines-and equivalent vfor binding the said disk-plates. with 4 the -ei-reular ange's .at the proper time by the'roeking movement of `they disk-` plates and f otherwise operitirigg;l snbstzin tgiadiyV :is herein specified, and, inv combination with such friction-pazvls, a projeetionn and I set-screw l upon the'disk-plate'or their equivalent, for oontrollin g the action of sl'leh friction-v pawls, lsubstalitially as herein speeied. K

3. The combination of the pair of curved eonnecting-rods IJ Y and thetwe disk-plates S their eqnivailent,l s'ubstentially. 'as .de

scribed, for the purpose Specified.- f l v 4. The use of a. 'springfbu'er orits equivnf lent fory arresting andzlimiting .the movement of tle'two frietion-pawis, substantial] yas and to1 effect the purpose herein speeied.-

i TURNERWILLIAMS. f 'NVitnessesz I Y ISAAC A. BROWNELL, i D; K. Hoxsm.

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