US913195A - Reversing mechanism for rotating shafts. - Google Patents

Description

w. H. BROWN.'

REVERSING EGEANISI FOB ROTATING SIIAITS.

' APPLIOATIOI PIL'BD 10V. 29, 1907.

Patented Feb. 23, 1909.

mafias 2 SHEETS-SHEET 1.

In u.

W. 1I. BROWN.

nBvEsmG ummm: ron BOTATING sHAPTs.

APPLIOATIOI FILED IGV. 29, 1907.

913,195. .f Patented Feb. z3, 1909.

2 annua-'SHEET 2.

10.1 causing reversal lin the direction of rotation B5 ljacent powerA shaft.

lWILLIAM n. BROWN, PHILDLPHIMBENNSYILVN REVERS-ING MncHnNIsn'FonnoTnTme saure: .L v l... Y

:Telavll whomy it' may concern:P y

Be it known that I, WILLIAMH. BROWN, 'a citizen ofthe UnitedStates, residing in Philadephia, Pennsylvania, have inventedcertain mprovements in Reversing Mechan- 4 'ing is a,.specsiix'sation.l

'1 he'ob'eet 'of my inventionv is to provide simple,eflieient,fV and automatic means 4for ism for Rotating Shafts, of which the follow- 4 i otashaft atpredetermined intervals, which may," if desired, be varied to accord with v.theJ requirements' of any particular circumstances v-,der lWhieh a machine is being In the vaccompanying drawings 'z--Figure 1-is anend'view of 'part of a dyeing machine\ whiclLI have selected as a. means'of illus? trating my invention, those features ofthe '2 0 machine. which; have heretofore been used 4beingre resentedby dotted lines andthe featuresy lo Awhichn my resent invention relates beingshovvn b l1' lines; Fig. 2 is a verticalseetion en t e line a-a, Fig. 1, and 2"5 Figs. 3jto 8 inclusive, are views illustrating various modifications of my invention.

`Referring in the rst instance to Figs` 1 and` 2 of the drawings, 1 .represents the end of, adye tub, upon. the `top of which is 3Q ,meunted aframework 2 having, at the top, bearings for atran'sverse shaft 3, whichk is provided with a chain Wheel 4, Whereb it maybe rotated by meansof a ehain. elt running to a `similar chain wheel on any ad'- The shaft 3 also has, at .each end, a pairof bevel Wheels 5`and 6, and itcan bemoved longitudinally in its bearings so astt'o cause either the bevel wheels 5 or the bevelwheels 6 to engage' with bevel y 40 -pinions 7 at the upper ends of vertical shafts 9, which are adapted to suitable bearings on the frame 2, `andcarry, at their lower ends, propeller Wheels 10 rotatable in openings in a 'horizontal artition 1l contained Withiny 45 a' circulatingc amber of the dye tub, Where.-I

' tby, when they are rotated in one direction,4 iowof the d eliquorfrom `top to bottom of thetub e effected, and when theyare, rotatedinthe oppositeidirection, Will I,cause 50icorresonding reve-rsafl-iinv .thedireetion o fV :f

" such ow. '.A{1ever",12, which eng-agesla` groov'ed oollarl on the shaft 3, serves to eieet ',.theilengitudinaleV movements `et said shaftffneeessary teA ,carry` either :thefi bevel i) lSpeciilation of Lettersflatent. l I Y .pplie'atio`n filed November 29, 1907. -Serial No. 404,413. -1

- the bevel miens' 7, and miami.

`and chain belt for drivingtxi and supporta wood screws 55s' prstheibevelgwheelss into. msh'witln machineslreal change in t e directioliwoi 'rotatonfftlief' -propellers 10. All of these partshavberef tofore been employed inlconnectidri with?" dyeingmachines of theftyptl invention relates, but hithrtethe of the lever 12 has been'l'fefected y and it has been customaryfto 'es tion of the shaft 3 While'svh I effected. My invention,`a iis'ejd nection, khas forl its pui reversal of the ,directional I, mechanism at predeterrn ed whereby this operation bete proper timesduringthedyeigr' outany care or' attentiori' the ri't dyenand with greater exa itiid ila such change is dependen p `v'n j'itsla Upon one ofthe vertic ,s tslg pinion 14, which nesh'es'xzvvit 15 on-a `short horifzontah'sh f mounted on the t 'd having a chain Whee 1,7', y fein. medium of a chainy hel'tjflQfHii Wheel 20 secured to 'ne endfof prevent any longitudinalz, screw shaft. By `the ufselofft positive motion 'is transnr te the shaft is driven .in strie the propelling mechanism; j iiefw 4of the dye liquor... },A l gageinent with the screir;shaft',i vented from turning there@4 Way, said nut having, in the p eSeIl 1n a bearing against t 1e 2- pose, an( 'the nut is providedgvitli a-,p,go]et ling arm 25, adapted to "pr-igtaetxwhich reject from slidesg?, tudinally en a bar 2.9,.Qthellatt P n Lipari; iep ried by suitable bearings' 30 and being freeto .slide long;mi "m" bangs- By ams, Qta@ ab are ws mounted the* @Martell gie -anfzlited'inlfh eeelmeetiaeealaa Per',

wenn ein! in neit iaventieli.. bein The frame 2 isprovided with bearings for a pair of shafts 31" and 32, the shaft 31i'hav'- ing secured to it adisk 33 with toothed seg- 5 in mesh'with the bevel inions 7, and when Jat the other extreme of its throw, will move ment 34 and the shaft 32 having a spur' wheel 35 in mesh with said toothed segment.

The shaft 32 also has" a crank pin 36, whichf engages with a slot in the lower'arrn'v of the lever 12, whereby, when said crank pinI occupies a position at one end of its throw', it will move said lever to position for that adjustment of the shaft 3 whic maintains the bevelwheels the lever to position for adjustment of the .shaft 3 which maintains the bevel wheels 6 fin mesh with the bevel pinions 7. Loosely mounted 'jonl the shaft 31 are two arms 37v and 39, the arm 37 being provided with a i weight 40, and the arm 39 having, by preference, a slotted hub 41,*which permits a certain amount of play of the arm 37 in respect thereto, the 'lower end of the arm 39 pro- 'ecting between lugs 42 on the slide bar 29.

plays between pro-- he weighted: arm 37 jecting 4studs'43 on the isk 33, which studs mayr e xedly mounted on the f disk, al-

though the .are preferably' adi'ustable from and towar s each other in a slot 44 in said disk, as shown in Fig. l.

Supposing that the parts are -in the position shown in Fig. 1 with the nut 24l travelingon the screw shaft 21 in the'rdirection-of the arrow show n in said figure, the arm 25 -of' said nut, when the latter a preaches the predetermined limit-of its trave .in this dire'ction, strikes the projectinglug 26 at the left hand end of the slide b a1f 29,2.y and thereby.

causes thelatter tof partake ofthe further movement 'of the nut, the effect of this movement being to cause the right hand pin 42 on the slide bar to move the arm 39 in the direction of the arrow, which movement is -imparted, through the medium of the hub y41,

to the-weighted' arm 37 and continues until said arm 37 passes beyond the vertical position, `whereupon the weight will cause said arm to fall to the right, and it will, by con'- tact with the right hand pin 43 on thedisk 33, move the latterV in the direction ofthe arrow, so that its toothed segment 34 will cause partial rotation of the spur wheel 35 will carry the bevel wheels 6 out of engagement with the bevel pi'nions' and move the bevel wheels 5 into engagement therewith, thereby effecting change in the diretion of rotation of the propeller wheels 10 and a cor-- responding change in the direction of flow of the dye liquor through thetub. A cor.- responding change in the direction ofA rotation of the screw shaft 21 also takes place,

the nui-, 24 starannts return travel', and, Vwhen its '.arm 25 contactswith the lug2'6 at the right hand end of the slide bar 29, effects a restoration of the `parts to.v the-positions showninFigl'.

-` Whilejl prefer to Vprovide the arm 39 with avslotted hub in order that the saidarm may vhaveafreefall in either direction, andthus acquire some--momentum beforeV striking :the

pin 43 and Ialso'in order that the extent of movement ofthe arm` 37 shall be less than that of theI weighted arm 39 and thereby pre- -vent excessive movement of thel slide bar 2 9,

said arms 37 and y39 may be rigidly connect- -.ed, or formed in 'one' iece, .if desired, as

shown, for instance, in ig. 3, or themovearms 45, connected to the. slide bar b crossed rods 46, as'shown in Fig; 4, or this latter construction may be adoptecLeven 1f `the arms -45 -are rigidly connected to or4 formedv in 'one iece with the arm. 37, `and instead of provi the shaft'32 with a crank.

pin for engaging a slotted portion of the shiftmg leverv 12, saidl shaft may constitute the fulcrum shaft of the lever, as shown in Fig. 5, `or the shaft 32 Aand the parts carried thereby may be dispensed-withif desired, by connectingl the lever 12 directly to the disk 33, as shown in' Fi 6,' or by transmitting movement to lsaid ever 12 from the shaft 31 in the same manner as it is now transmitted thereto from the shaft 32 or the slide'bar 29 and its ap urtenances may, if desired, be abandoned and the nut 24 may be causedto act directly -upon leversl47 connected by a rod 49 vto the weighted arm 37, as shown in F' 7,' said' connection being preferably slotted to provide the vdesired limit of free movement of the arm 37, or other modifications in detail may be adopted within the 'knot ledge' of: those skilled in the art Without departing from 1"6 essential features of my. invention. By adjusting fromor towards each other, upon the bar 29,.the slides.27, which carry the contact lugs 26, the intervals between the successive. reversals lin the direction of rotation of the shafts 9 may be increased or diminished tov any desired extent.

Instead of mounting the spur wheels 5 and 6 xedly upon the shaft 3, I- may, in some cases, mount said spur wheels rotatably upon said shaft andretain them longitudinally4 thereon, as shown in Fig. 8, each spur wheel having a clutch member 5a or (Safor encragement with a clutch member 50 which 1s secured to and'rotates with the shaft3, and

Ament of the slide bar 29 may be shortened by A. i providing the slotted'hub 4l with two short shaft'operating in consonance with said rotaking shaft, a traveling nut on said screw shaft, and means, interposed between said nut and the reversing lever, whereby the latter is shifted at predetermined intervals, one

' ofthe elements of said interposed mechanin eitherdirection, beyond a vertical ine.'

mg a weighted and swinging' arm winch can fall by gravity whenever it asses,

2. The-combination of a rotating shaft, reverslng fdevicesu o erating in 'connection therewith and inclu ing a lever, a screw shaft,

o rating in consonance withsaid rotating "s aft,'a traveling nut on said screw'shaft,

V,it '.thereversing lever, whereby the latter may mg` arm which can 'therewit and means, interposed between said nut and b e shifted by the nut-at leach end of the traveling movement of the latter, s'aid interreversingl devices operating in connection nut and the reversing lever, whereby the latter may be shifted 'by the nut-at each end of the traveling movement of the latter, said interposed-means includin a weighted and swinging arm, free to fall g ever it "vertical gravity when.n gassesin either directlon beyond a ine, la toothed segment movedby said falling arm, a spur Wheel meshing with reversin said se ment, and means whereby the move 40 reversing lever.

ment o said spur wheel is transmitted to the 4.' 'Ihe combination of a rotating shaft, devices operating in connection therewit and'including alever, a screw shaft o erating in consonance with said rotating s aft, a traveling nut on said screw shaft, land means, interposed between said n ut and the reversing lever, whereby the latter may be shifted by the nut at each end of the trav eling movement of the latter, said interposed sed means includ a weighted and swing# lfil by ravity whenever- .l it passes in either direction eyond avertical l. line,l and means acted upon by the arm in its falli and servingto transmit the movement of "said armto-thereversing lever.

Y 3.- vThe .combination of a rotating shaft,l

means including "a slide bar with lu s' to be acted upon b t enut, a'wei hted an swinging arm whic .is free to fall y gravity whenever it passesn either direction beyond a vertical line, means whereby said swinging arm is actedy upon by the slide bar, and means for transmitting movement of the arm to the reversing lever. v

- 5. The combination of a rotating shaft,

reversin devices operating in connectionv therewit and including aglever, a screw shaft o erating in consonancewith said rotating j s aft, `a traveling nut on said screw shaft and means interposed between said nut an thereversinglever, whereby the lattermay be shifted by the nut at each end of the travcling movement of the latter, said interposed means including a swinging arm to which movement' 'is imparted Whenever the nut reaches the predetermined limit of its travel in either direction, a swinging and wei hted arm having alost motion connectionwit said first arm and free to fall by ravity whenever it passesin either direction eyond a vertical line, and means Whereb the movement of said lswinging and weig ted arm is transand including a lever,A a screw. i -mitted to the reversing lever.

6. The combination of a machine having, as one of itselements, a rotating shaft, re-

versing devices therefor, and means for eifect' 80 ingautomatic shift inthe position of said ref versing devices at predetermlned intervals,

'said meansbeingcarried by .a single plate secured to the machine.

7. The combination of a main rotating shaft, reversing devices therefor, ,and'auto matic shifting mechanism for said reversing devices, said mechanism including a screw shaft separate from the main rotatin shaft, a traveling nut on said screw sh t, and means for positively drivin said screw shaft from the main rotating shat, but at a lower rate of speed.

IIn testimony whereof, I have signed my name to this specification, in the presence of two subscribingwitnesses.

WILLIAM H. BROWN. Witnesses:

HAMILTON D. TURNER, KATE A. BEADLE.

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