US897328A - Shoe-channeling machine. - Google Patents

Description

No. 897,323., EATENTED SEPT. 1, 1908. E. A. WEBSTER.

sHoE GHANNELING MACHINE.

APPLIOATIQN FILED MAY 15, 1907.

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l. 01 n a PATBNTED SEPT. 1, 1908.

E. A. WEBSTER.

SHOE GHANNBLIN G MACHINE.

APPLICATION FILED MAY 15, 1907.

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- Nmsgzszm PATENTED sEPT.1`, 1908.-

E. A.' WEBSTER.-

.SHOE CHANNELING MACHINE.

APPLwATIon funn un 15,-1907.

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uNiTJED s-fiuirns` PATENT Crimen EDWIN A. ivEBSTER, on GROvELANn, MASSACHUSETTS, AsSrcNoR 'To HAvEaHILL CHANNE .ING MACHINE. COMPANY, OF PORTLAND, MAINET menjtinlg-*Sdio'efChanneling Machines; of which thefollowing description, in connection with the accompanying drawings, isa Specification',` like characters on the drawings representing like parts.

v Thisfinvention relates to certain improvementsf'in 'a sole channeling machine ofthe-- character di-sclosed in my pending `application Serial No. 297 ,094, filed January 22, 1906, inwhicli the channel is cut by a recipupper'receiving face is formed by a' rotary knife.

ln forming an up er receiving Seaton the edge'portion of a so e with a rotary knife, I have experienced much difficulty in causing theknife to remove thechips completely, particularly when the leather is s ft and the {nife became Soniew'hat dulled, and to leave the edge of the scileA smooth and clean-cut. In t-hisfconnection one of the objects of the .uy thechins will be completely removed and the edgel of the sole will be smooth and sharp at Athe-end 4of the channeling Operation, eveny though the leather is soft and the knife edge becomessomewhat dulled.

ilInfchanneling soles having pointed toes, 'I haveffexperienced difficulty in preventing lacerati'on of the channel flap at the toe, and a further' Object of my invention is to provide a forni of knife, and relative adjustment` kcutters 'bf different formsf whichv l em loy.

5 isa sectional view of va sole whic 1 has been o; erated upon bv acutter' of the form show inifFigfof. Figf isacentral sectional l Specicatiion of-Letters Patent.. Application mea nay 15, 1907.v gseriaim. 373,726.

Fig. .14 is a sectional viewon the line. 'c-c of rocatingvknife and the edge shoulder or resent invention is to provide means Where# MAINE, .A CORPORATION or 's HOaCHANNELINe MACHINE.

'Patented sept. 1,-19oa view of the cutterfand vsole-shown in Fig. 4 on a' plane at ight angles to the planefof the section in F gf4. Fig. 7 'isf'a top side view of a ortion O f'a" sole... Figs'; 8,"9 and 10 are 'de-l 'tail views of the sole edge ard.y Fi 1'1 is 60 an enlarged detail section (l'llview on' t `e vline arf-a. ofFig., 1. Fig. 12-

an enlarged'detail end view of theknife blockcasing. Fig.l 13 is a sectional view onthe line b-b of Fig.12.

Fig. 1,2.l Fig. 115 isa detail view' of the channeling .knife- Figs.v 16 and l17 are ldetail views of the capfplatel ofthe knife block casing.A Fig. 18 is a detail 'sectional view on tlieline d-d of Fig. 19. Fig. 19 is a detail 7o end view of the rotary cutter. Fig.- 20 is a view illustrating theoperation of channeling I about the toe.

In the drawing, 1 indicates the frame of the machine, said frame being provided With a bracket arm 2 in which a circular work supporting table 3 is mounted to rotate about a nearly vertical axis, saidtable being'provided witha bevel gear/1 at its under side which is in mesh. with the bevel gear- 5 mount 8 0 ed on the end of a shaft 6, journaled in the frame and adapted to be turned by the crank v7. A feed wheel 8 ismounted on the end of .the shaft 9 -directly over the table 3, adjacent the edge thereof, said shaft 9 being mounted 8e fin the pivoted frame section 10, and arranged so that; the axes of the table 3 and wheel 8 are in the same vertical plane, as in prior devices of this character, va gear 11v on shaft 6 being arranged in engagement with a gear on shaft 9, softhat .said table and wheel may be rotated in unison.

A rotary cutter or knife Y12. isthreaded on the end of a shaft '13', Whichis vjournaled inta' support 14, said 'shaft 13 being drivenfrom 95 the main shaft 15 by means of a-pulley 16, mounted on said shaft 15., belt` 17, which asses about pulley 16 anda ulley 18,- the'- atter being mounted on asha t 19, and carrying a pulley 2O which is' connected to pulley '.100 21- on the cutter shaft 13by a belt 22.

The vform of cutter which` I find to be best adapted for the purpose consists of an jannular head or shank, into which the end of. the cutter Shaft is threaded, and from the` end of Which'tw'o blades 12" roject, as best. shown in Fig. 19, said blades eing extended longitudinally'of the shaft, eitherparallel or i at different angles thereto, according to the [An edge guide 30 is mounted on an arm 31,

paththereof as practicable.

i ell'crank lever 23 engages slide 32 and a l which is to be formed on the edge of thesolel For example, if it is desiredto produce a'shoe. having a thick edge, the blades are in'ade to extend divergently from the shank 12, as

, employed according to reuireinents, buttheimportant feature of all o these forms is that theV cutting edge of each bladeis so'disposed with relation to an axial plane of the cutter',

`intersecting-fthe edge adjacent the cuttery shank, that the'pqrtion ofthe blade beyond such point 'of intersection does not extend through said plane, but preferably extends" obli uely therefrom, asshown, s o that the 2 0 edgeadvances towards said'plane as the cut- C terisrotated.r y f A collar 23is,rotatably mounted upona shank 12 and the framev and'conc'entrically' with the cutter shaft 13, said collar being 'provided with shoulders 24 which are adapted to engage a pin 25 fixed inthe frame, -as

projecting sleeve. 24 between the cutter findicated in `Fig. 19,- to limit the 'extent .of

rotation thereof upon the sleeve. A concaveor'segmental shaped shield 26 projects from thecollar 2'4 longitudinally of shaft 13,

tol 'the endsfofthev cutter blades 12, land is provided at its end with. a sole engaging foot 27 lwhich-is integral therewith and ,extends transverselyand downward therefrom in position to be pressed'against the surface of the y sole closelyadjacent the path of the cutting edges of the cutter blades. ofv the foot 27 is rounded, see Fig. 19, to permit ready insertion'o the 'sole between the' The lower end same and the table 3, and its sole engaging face isadapted to be held in yielding engagement with the sole which is connected to said collar 24 and the-traine,` as shown in Figs. 2 and-19.

'1 said arm being in turn mounted on a slide 32,

said slide being arranged in guideways on the frame, see Fig. 1, so as to carry the guard to'- ward 'and from .the table 3. The sole-edgeengagingportion 30' ofthe guide extends over the-surface of the table 3 and isxconf caved -on its'upper sidev corresponding to the fend thereof.' i

' path of the cutter blades, to permit. it to be extended beneath saidblades as close tothe One end of a rod, 34'is pivotally connectedto-the other A sprin 35 on the rod acts between a collar 36 on t e rod anda lug 37 on lthe frame', through which said Irod passes i loosely, and, a nut 38, threaded on the rod limits the extent which said spring 35 can press the edge guide-towards the feed wheel 8. #The rod 34 adapted to be drawn down lsupport 40 anda ring 45 secured to' said su lby a treadle, not shown, tovary the distance which the channel is cut from the edge.

`Asupport 40v is mounted 1n the frame section 10, and a sleeve 41 is rotatably and slidablyA mounted in said support.` "A shaftf 43 is rotatably mounted in the sleeve 41,-said ,shaft being provided' with rneans'for holding "it from longitudinal movementcompris fa4 flange 44 thereon, which is held betweent e port. A pulley 46 is mountedon-the shaft, 43'and is ada )tedto bedrivenby a belt 47 which passes t ereab'out over the'idle pulleys .'48 from the pulley 16. The oppositeend 'of the sihaft .43 `trom the pulle 4.6 is 'provided withanv eccentric pin' 49- w 'ch is rotatable,

and sli'dable in a'rectan'gularblock 50. A

knifeibloc'k 51, isprvided with four lparallel-` guiding'arrns'52, 53,54, and 5,5,. which vare slidably mounted on o positey sides offsl pair -of lugs 56, 57 integra with the sleeve 41. v :Said sleeve'41is also provided withextend- .ing casing portions 58 and 59' ltov provide,

uidingmeans for the o posite sidesof the ,'13,

ife block arms, an adjustable weaiplate 60 being provided' betweensaid casinfg porv Y tion 58,and arms 53, 54. The middle por@` .tion` of the block is, transversely slotted to' provide ways 51.', 'between whichsaid blockl -50 is slidably mounted,- so, that, when said shaft '43 isi-rotated, said blockY 51 will'b'ef reciprocated on its said guideways.

' A' cover plate 61 is secured -'against the lugs 56,- 57 and the edgesof casing ortions58vand. I

l59-to close the casing ant. to -serveas. a'

side guide for the knife block. t A knife 62.is i

clamped' againstone side of-theblock 51 by means 'of a clamping plate 63, said-knife be-v ing held parallel with the guideways'of ther block 51 and having a cutting edgeI '62 on' one side which extends from the lower end thereof adistance as great as the lengthfof I the channel to be cut thereby. The knife is provided with a narrow, chisel-shaped end and the back thereof iss'omewhat tapered 11o and. rounded so that there are no sharp cor-'1v A bolt'64 is arranged in suppQI-t 4,0, tnsfverselyof the'sleevez41,-and is provided with a recess 64 in one side thereof, through-winch said sleeve is adapted to be passedl. A-nut` 65011 said bolt -is adapted 'to' draw itsogth'at one side l,of its recess 6 4' will be forced intoclamping engagement with said v sleeve to 1 lock the same rigidly in any longitudinal position, withfce'rtain limits, to which itma be adjusted. With this lconstruction,it Wi be apparent that the inclination and V.transwithout withdrawing the eccentric pin 49 from the block 5), theihaft'143 being unaffected by. said-'adjustment' "lnoperati'on the: sole to. be''channeled is :fedl from front-torear and thevcutter is rotated so that its Vblades move'` the,4

versc. position. `ofthe .knife maybe varied senses ytable 3, and perpendicular to the' direction inwhich the sole is fedv at the point of engagement. As reviously-stated,.the cutting kedges of t e blade extend obliquely rearward from 'the'shank, and therefore lob- 1 liquely rearward with relation to the edge of the corner at its edge sharp the' sole at the oint engaged, `so that, in forming the shou der, or u per receiving seat on the sole, the leather. att e edge is cut away in advance of-the portion more .remote from the.- edge. As the ends of theblades are `behind the base ends thereof, as they advance,

the tendency is to beat or force the `leather in from the sole edge as it is cut, thus leaving and smooth'. The leather in front of the. blade is also thus enabled to act as a su -port to hold the chi s 'until they are com fdtely severed.

advance of the'shank portion, then the-tendency would.. to be' force the 'leather` toward the edgeas itis removed, and this would also be the case'lif the cutter were rotated about" an approximatelyvertical axis, so that, in

either instance, the chips at the edge would l being highly unsatisfactory.

To assist the cutter .in completely removing the chips, and 'to prevent the' blades thereof from 'lifting the sole'from the table,

"thev `presser-foot 21 is provided, which is dentoo dee forced into yielding engagementv with the leather by the spring 28 closelyadjacent the point where 'the blades' leave lthe leather,-

thereby acting to hold the leather vdown while the adjacent portion is beingA severed,

and, also, at all times Afirmly holding the sole against-'the table, thereby counteracting the tendency which the blades' have of lifting the so rom'the table and thus cutting the shoul- This foot 27, and the adjacent shield 26 .W `ch connects-ittothe collar 24,

extend over approximately one-half the cutter'and performthe-function of a lchip uard,

i 'said guard havin fits'lower edges hel close gator; l ,I

- Whileinchannehng a to the surface-o theV sole: y,at all timesand pre'venting the chipsre'moved by the cutter om being thrown into the face of the operj shoe having a broad toe the exact osition ofthe kchanneling knife with relation toy the vertical plane of vthe cutters is of little consequence, provided it'liesa proximately'within said plane, yet in channe ing a shoe having a very pointed toe,

M which the cliannel-turns'at.a-sharp angle,`

.morder to avoid laceration ofthe lip or fiap,

`fit is neeessaryto .have theel/Knife. accurately A "whichis very If t e Vend portions of the ladeswere arranged in ment,` havediscovered that in order l,to orm j the edge shoulder about the toe of a sole ointed, with a minimum laceration of 'the of the knife should lie inthe vertical .plane' of the cutters axis, so that, as illustrated 'in the Aiagrarn of Fig. 20, the rounded ,back ofthe nife may serve as a guiding pivot about which the/'cutter may bev swung in shaping the edge about the toe. In ether words the back of the knife is held lap roximately at-f'the point which represents tiie vertex ofthe angle lof thefchannel, as the sole is swung to shape it about the toe, said back -being held against the lip which has been cut just pre-- vious toy turning, and, while it will roll back the lip slightly ,it will notvlacerate it,.the only laceration which will be caused being due to the necessity of running the front. edge of theknife slightly beyond lthe vertex of theehannel, consequential. I

The knife may be adjusted to the vrecise, point desired by simply loosening the olt 64 and sliding the sleeve 41 forwardly or rearwardly, the block sliding o n the crank pin 49 as the sleeveis adjusted, and said bolt act- .ing `to lock the sleeve firmly in any 'position to whichit maybe adjusted.

In practice the knife 62 is re'cipiocated at avr high rate of speed, the'reciprocations vbei-ng very short, so that, aside from the time when the knife is first lowered into lthe channel, practically all the cutting of the. channel is performed by the longitudinal edge 62 ofthe knife( The depth ofthe channel is determined by the vertical position of the support 4() which 4*is adjustably connected to the framesection 10.

, The `form of guiding means for the knife blockis also a featu'refof importance, as. the four guiding arms eectively prevent all .transverse vibration of the knife and provide ample opportunity vto take up wear.' The connection between the block and shaft -which `reciprocates it is compact and especially adapted for use but as the' knife is very narrow, this is in 1p, the back or rounded edge Having thus ldescribed my invention, i

what l claim/as new and desire to secure by Letters Patent is 1 1. machine of the character described comprising a sole support, aknife mountedk toA rotate on an axis" approximately parallel to said support, and extending longitudinally of said axis in position to form an up` perzreceivingseat on the upper edge portion f la sole held on saidgsupport, said liquely rearward from its sole-edge-engaging l knife hav- .mg lts, cutting edge disposed vto extend obportion, sotliat the. leather' atthe edge 'of the solefis removed advance of that more ref""niot'ely situated from' the edge, 'substantial-ly as described. f

'.comprisingfa sole. support. and :means for moving the jsole thereoverin la-.predeter- 'l '2. A machine ofthe character described' mined direction', a 'shaftirotatable'about an axis approximately perpendicular t`o the di- 10 rection' in which the sole isffedand'parallel to the' face of said; support-a cutter mountedon said -shafthaving a knife extending longitudinally thereof in' .position to' 'engage .the upper' side; of the' sole, adjacent its edge,' W. 'e

n ,held-on'sjaid support, means forrotating "said shaft so 'rthatathe Aknife is advanced,

I'in the o posite' direction to that in vs fhich'thel sole 1s f ed' While-.in engagement therewith,- saidfknife. -having'its cutting edge extending 2c rearwardly, with, relation Lto, its direction" vof rotation, .from its"A soleeedge-engaging tion, to remove thetleatl'ierI at the edge o the sole. in advanee'of that 'situated more re- .motely' fro'rnI-its. edge,. su.bstantially. as y'de- 25Scrbed.

comprising a rotary shaftihavi'ng a knife mounted thereon Withits cutting edge, ex# tending longitudinally thereof, means for .holding a sole-With its'upperside approximatelyparallel lto the' axis of. the knife and fforfee ing; it against the vrotation ofthe machineof the 'character -der-scribed.

knife,-l a` 'presser-foot' .having a sole-engaging, face extending longitudinally of the knife' surface ofthe sole in advance' of ythe knife, :substantially as described.

I- f l 40' 4. A machine of -the'character descrlbed von'lprising'a rotary shaft having a knife mountedthereon with its cutting edge eX-.

with'its rear'edgadi's O sedl closely adjacent the path .ofi-the .edge o 'the knife, and means `for yieldingly pressing said foot against Vthe f tendinglongitudinally thereof, sole sup ort-A [ing'and feeding meansfor holding a so e ti-position to-be engaged iat its upper side by 'theknifea-nd for moving itagainst the rotation thereof, and-'a presser foot' disposed to bear againstthe surface of the s ole closelyT atijacent. the point` at vwhich the .knife moves aigle engagement with the sole, said foot 55'. .of fthe 'charactelf .described niggneans for 1-holdinge@ solev in sa id b1ock,}and a 4support having guidewfay's "f for said arms dis osed at opposite-sides tending longitudinally thereof, sole', support-'- 8. A machine of the. character' described;

edge thereof closely ladjacent fthe surface of the sole, substantially as' described.

'56. A machine of the character 1 described comprising a rotary shafthavin'g a knife mounted thereon with its cutting edge-exi7@ ing and feeding means for holding a. solein position to `be'engaged-at its up 'er side bythe knife and moving it against t e rotation thereof, 'a supporting ring mounted tomo've circularlyof sai'd shaft, adjacent. said knife,

. a guar-d. plate extending from'said ring longi tudinally of the knifeand adjacent the path.

' thereof, said' plate havin .fa sole engagingy f portion at one edge thereofand means for' circularly moving'saidring to press said en-j gaging portion yagains`t .the sole `adjacentthe pathof the knife, substantially .as described'.

7. A machine ofthefcharacter 'described' comprising sole feeding and supporting-55 `means, aV rotary lcutter' disposed to -engage a sole `held therebytoformian upper receiving seat thereon, a knife block havinga channel -cutting knife mquntedfthereon, va ysupport ha'vinfr vuideways' on' said 4block isrcpo l D c n ciprocally mounted, means for reciprocating arms, permitting said block to reciprocate at right angles to said shaft and eccentric con- 105.

necting devices betweensaid block and said shaft and-'disposed between lsaid supports,

substantially.as'descrihed.l

9; A lmachine of 'the character*- described comprising a knife block, composed foftwo l13,0 pairs of oppositely extending parallel larms 'and having an intermediate,transversely disposed slot, a rotary shaft having an eccentric portion extending into said slot to L engage said block, "andvguiding supports. disposed of said slot, substantially asdescribed, l0. A machine of comprisingv a knife'block "composed of two' pairs of oppositely. extendingparallel arms and having an intermediate7 transversely disposed slot, a'rotaiy shaft'having an eccentric portion extending into sald-slot., toengage the character described 'y '1"' thereof,- substlltialy .as described;

11: A'mavch'ineof'the .Character des Cilbey l "Stmme 'about horizontal axls'm'posmon 1310- ini' between eachof said pairs of arms and at opposite sides end lies insthe Vertical a-Xiai plane of the cutters axis, substantially as described.

12. A maehine of the character described comprising a soie support7 a cut-ter disposed y to rotate about a horizontal axis in position to engage the edge portion of a sole held on ,said support, a channeling knife having a sin 00th, rounded back and a cutting edge eX- tending from its end, and means for reciprof eating said knife in such av position that the back thereof adjacent its end lies in thevertical axiai piane of the cutters axis, substantially as described. in testimony whereof, l have signed'my name to this specifieffztion, in the presence of 20 two subscribing Witnesses.

EDWIN A. WEBSTER;

W'itnesses;

L. H'. HARRIMAM H.- B. DAVIS.

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