US1748367A - Machine for grooving wood heels - Google Patents

Description

W. J. SHAW Feb. 25, 1930.

MACHINE FOR GROOVING WOOD HEBLS Filed NOV. 28, 1927 2 Sheets-Sheet l Feb. 25, 1930. w J, SHAW. O 1,748,367

. MACHINE FOR GROOVING WOOD HEELS Filed Nov. 28, 1927 2 sheets-sneer 2 4 E09-J O O .rl-r,

vPatented Feb. 25,1930 l j! UNITED; STATES! PATENT OFFICE f WESLEY J. SHAW, or H Avmnmn MASSACHUSETTS, ASSIGNOR To NEW ENGLAND vwoon co. or HAVERHILL, MASSACHUSETTS, A CORPORATION or MASSA- CHUSETTS c f MACHINE :son Veraooviire Woon HEELS y App'ncaonmea,november. 2s, ieri.l 'serial No. 236,153.

y The present inventionk relatesto machines vvfor,-gro'ovingjthe breasts of wood-heel blocks, and more particularly'Cubanheel blocks.

10' nation.Cuban.'

Thefterm-Cuban"willbeused in the speci- Vvfication'and claims to 'denote heels of the type herein described, and?" as 'distinguished from LouisA or.`FreCh-k heels. The heels lidiowirin` the trade vas"imilitary'heels, for

such, that ytl'ie'vresulting vgroove inv the breast v is transversely curved L1n cross section tromv the heel seat tothe tread'.

,Th'ecorresponding kcross sectional curve of a Cubanheelextends, however, from Side -to side-,of the heel, in a direction at; right angles n i yto'that 'romseat totread. In order to groove f the, breastsf offCubaIkheeL blocks, therefore,

itwis'fimpossible or'iinpractica'ble to use the automatic machineryy designed-,- forv breasting Louis hee/lsl The diiiculties connected vwith the automatic groovingv of Cuban heelsrrhave nocounterpart in thebreasting ofLouis'heels a`nd,'jsoffary as linowmlno one, kprior 4to the f present'. invention, has.. ever succeeded in `building a satisfactory machine for perform ing this operation.

-groovedslowly andlaboriously with handf operated tools..

` Itr is,therefore.anobjectiofthepresent in-y i vention yto provide automatic machinery of novel character for grooving Cubanheel` blocks. Otherobjectswill beeXplained hereinafter andl willbe p lrticularly pointed out f intheappended claims.

- n The invention. willnow be described inv connection` with the accompanying drawings, in which Fig. ll is a diagrammatic viewinl front elevation, .illustrating one embodiment of the invention, a part being broken away for clearness; f. Fig.4 ..2`1 is` a plano/fthe same, .i with parts omitted fory clearness gfFig. Sis aplan of a detail, shown. enlarged withk respect to 'Figs'..l and 2; Fig. k4: kis a similarly enlarged Cuban heels are still section, taken-upon. the line 4-4 ofkFig, 3,

looking in thev direction ofthe arrows; land l Fig. is a perspective view of a Cuban-woodheel block. f f i Cuban-heel blocks, before they are operated upon inthe illustrative machine, have the shape indicated in Fig. 5 by full lines.

-The tread portion of the heel block is shown` at l and the heel-seat portion at 3. The breast 51 is boundedby the tread and theheel-seat portions l and 3 and the side faces 7 and 9. The face A11 opposite to the breast 5 inclines upward fromthe tread portion l to the-'heele seat portion '3.

Blocks of this shape are placed upon an endless carrier, with the side face 9 resting upon the carrier, and with the breast portion 5 disposed at one side; and are advanced by the carrier to a rotating` groovingY cutter 8, by which the breast portions 5 of the blocks are successively cut longitudinally along the dot-and-dash lines yl0, shown-in Fig. 5, from the tread l to the seatS. The cut 10 may, if preferred, be effected in two stages, the Second stage of the cut being ei'ected by a second cutter l2 of larger diameter.

The endless carrier 6 comprises a plurality oflinks 16 connected by. pintles 18 that are adapted to be engaged by teeth 2O of a driving wheel 22 over which the carrier 6 is mounted. The driving wheel 22 may be KAdriven froml any ldesired source of power I( not shown). The driving Wheel 22 is shown `in Fig.. 1 at `the left-hand end of the ma-V chine. Thecarrier 6 is mounted also over an idler wheel v24 at Vthe right-hand end yof the machine. The idler wheel 24 is provided with a'circular periphery and withlanges 26 betweenwhich the links of the carrier 6 are on substantially straight'` tracks 28 and 80v (Figfll) located at the sides ofan-opening32 in the frame ofV they machine, 'over which opening the carrier is'suspended. This construction involves less friction than iii' the carrier dragged over a solid bed bottom.

The. substantially straight tracks 28 and 30 ensure that the portion of the path of travel of the carrier between the driving wheel 22 and the idler wheel 24 shall be substantially' straight. In order to prevent vibration of Y the carrier during its travel, itis confined on one side between the track 28 and a ledge 34, and on the other side between the'track 30 and a ledge 36. The ledges 34 and 36 may be secured to the frameof'the machine in any desired manner, as by means of screws 37,

Fig.4.

The blocks are successively placed ,uponV the carrier 6 at A, with the 'breast portion 5. projecting at one side of the carrier. As

y each blockris advanced forward toward the cutters, its breast engages an aiming face vward beveled part 45 of the jaw 40 first forcesv the tread 1 of the block into firm engagement 39 of analining gage 41 which, positioned atone side ofthe path oftravel ofthe jaws, pushes the block transversely across the'carrier, into proper position to kbe engagedby the cutters. In this position, the breast 5 of the block extends slightly sidewi'sebeyond 2.5

the carrier in the range of action of the cutter 8; -While being'so pushed, the tread 1 of the" block slides along a aw 88 that is mounted upon a link of the carrier so as toY move therewith. The plane yof the jaw 38 is sub'- stantially'at right angles to the path of travel of the link 16, so that the tread 1 of the block may engage the jaw 38 snugly when resting longitudinally ofthe carrier, as illustrated -more particularly in Fig. 8, and as hereinafter more fully described.l The block then travels under a clampingjaw 40. The forwith thejaw 38, after which the remainder of thejawrclamps theblock tightly against the corresponding link 16 of ythe carrier. The* clamping effect is thus obtained after the block `has `first become properly positioned against the jaw 38, but before it has 'been advanced tothe cutter 8. At the time that the breast 5 of the block is presented to Y the cutter, therefore, it is firmly clamped bethough severe, clamping action.

tween its side faces 7 and 9 anditsftread 1 is'engaged snugly against the jaw 38 the cutter acting at a point intermediate between the carrier 6 below land the vjaw 40 above, and to one side of the carrier 6 and the jaw ,40,

- Unless the block is thurs lirmly clamped,

with the block resting snugly on Vthe carrier,

tively, the `40 is intermediately pivotedV at114 upon a plungery 116that is vertically yieldable, in opposition'to the action of the spring 118, in a framework 120 that is vertically adjustable by means of a handwheel by means of a hand-Wheel 124 that is adapted to control the transverse adjustment of a slide 126 that carries the frameworkk 120.

The pivotal movement of the jaw'40 labout Vits intermediatev pivotal point 114l is yieldingly. resisted by two coil springs 128- and 130 mounted between the framework 120 and the aw 404 on each sideof the pivot. lVhen a 'block is `forced v`underthe jaw 40, the spring v128 isy lirstcompressed. The spring 130- isy 122. Transverse adjustmentmay be e'ected compressed later, as the block "isadvanced`- if' be'yo'ndtheaw 40," The'spring 118 is called l y into play for blocks of extra thickness( t ,'The position of the groove '10 upon the cutters 8 and 12, iThese should be situated substantially in the planeof movement, and

t-o one side of the'vpath of travel of the jaws;

38, Aor slightly above the'links 16, at=intermediate positions of the carrier 6,'as illustrated l,block 2 will depend upon the height of thef more particularly in lFig.f1.A [The cutters are' i mounted uponspindlesy 86 that rotate in bearings 88 and 9() and that are driven by motors or pulleys 92. The spindles 86, bearings 88 anu90 and motorsor" pulleys 92 are mounted as a unit upon vertically adjustable yplates 94. i The plates 94 may be secured in verticallyl adjusted position by bolts 198 "extending through elongated openings `100.Y The verti- K, cal adjustment may be facilitated by hand wheelslOQ secured to threaded stems 104 that extend through lugs 106 inthe frame ofthe machine and that engagev the plates 94.

The jaw 40 may extend throughout sucha length ofthe machine as to maintain the block e j clamped until afterit has traveledpast the second cutter 12 also, or` a separate clamping jawy 141 may be kprovided vwhich may, if de'- sired, andas is illustrated, be similar' to the jaw40. After the block has. passed the cut-1j terv12, it is released and may 'beremoved from the machine in any desired manner.

fThough `Cuban-heel blocks Vare of the'gen-' eral shape heretofore described, they Yvary Y,

somewhatrin size and in the inclination orangle ofthe breast 5 to the tread 1 and heel-seat portion. ln this respect, among others, the breasting'by machinery of .Cuban-heel blocks presents .problems that are not existent in caser of Louis-heels; for it'becomes necessary to provide .a differentjaw' 38 for practically every different shapeandV size, of, heel block.

'Accordingto a feature ofthe present invention, howevenit is possible to use onev jaw 88 for allv sizes and v,shapes of Cuban-heel blocks that ane used Vinactual practicemerely by providlngasuitable adj'ustmentfor the "i Asa@ jaws 'es teiaibaanuaiiy alike, it

Y j ein? niet@ iias'eabefne jawfes my? The jfafwf38f is pivoted' upon its link 1'6 at one end` 4I2so asy to adaptit to take up different angie y larpositions upon the link, j Theother end of the jawi's provided with a circular slot 44.

Abolt46 extends through theslot44: and intor n the link v16 to clamp the jaw in pivotally ad; f justed'position. f f f In order to'providefor rapid adj ustmentof all the jaws, a gage 48 is'r positioned as illus# trated more" particularly"inFigs y2 andy 3.

V'Ih'e'gage is adjustable transversely -o-f the' carriertopositions 'that may Vbe determined-in advance tojcorrespond to desiredangular po- 1 sitions of the jaws 38. A scale-mayk be provided to yhelp set thel gage inl predetermined transversely adjusted position.

The bolts 46 are firstloosened successively v ifnecessary, andthe jawsare moved about their :pivots 42 to anextreme limit of movement. :.Thegage 48 isfadjusted to the predef v termined setting; and the carrier is' t-hen e started toqmovejslowly. As the successivek c links ltravel' past the gageJlS, the jaws 38 Varey engaged thereby yand are thus moved toa po sit-ion of angular adjustment corresponding tothe predetermined adjustment ofthe gage.

' The bolts 46 a'reth'en retightened to secure the jaws lirmlyin adjusted-position.

"Unless this operation is carefully carried out,there` will be danger of the-jaws being moved by the, gage 48 toov far beyond the desired positionk of, adjustmi-nitf.` A linger 50 (shown in'Fig. lkas'a ball) is theretore'pro` videdineach link 16. Each ball fingere() isr spring-pressed upward intoy engagementgwithv f thefbottoiniace 'of the jaw 38.*, This bottom tacev is provided with a plurality'ot circularly arranged recesses 52 into which the springpressed ball lingers 50 are adapted to enter.

. Asv the spring lingers `lOitend easily' to enter the'rece'sses 52, but tend to leave the recesses only upon the exertion oifa somewhat greater 4firmes, the angular positionety the jaw 3813e-l comes y.relativelj'f fixed(y llt, therefore, the f gage 48 isproperly adjusted, it will move the i aw'38 toa position *such that a ball finger 50y f willfdrop intoone of the openings 52`l and the' jaw will be held in that'po'sition until the bolt 46 is retightened. As a singlecircular row"y ot openings`52 will not'p'rovide a sufficient range oi adjustment,several suchV rows,with

springfpressed ballzfin'gers`v 50 lfor each row,

are' provided, as illustrated'.

" ,loaieatlions may bei mariel vthl the Y spiritand scope/of the invention, as will read' therto, but is defined, by 'the appendedA claims. f

f ilyoccurtol persons skilled lin the art.` It will therefore be understoodl that the machine illustratedand described herein isjillustrative only,r 'andthat the invention is not restricted y f LWhat is claimed' ist'.

, j l. Ay machinefor grooving the breastsot yCubanlheelblocks in a longitudinal direction, the said'machine having, `in combination, a"

heellblock-grooving cutter, an endless carrier comprisinga plurality ot'links, a jaw mounted upon each link of the carrier so as to move withy ythe carrier and extending substantially at right angles to the path of ytravel ot the jaw so as to be engaged by an end ot a Cubanheel vblock when resting longitudinally on the carrier with the breast extending sidewise beyond the jawV at one'side of the carrier, a

gage situatedat one side of the path oftravel' of thel jaws and adapted to be engaged by the breast of the'h-eel block to'cause the block Y to be positioned on the carrier in engagement with the j awin predetermined relation to the cutter, the jaw being angularly adjustable on A position such that the cutter shall cut a groove in the breast ot'each heel block in av longitudinal direction.

j 2. A machine Jfor igrooving thev breasts of Cuban-heel blocks yin aglongitudinal direction, the said machine having, in combination, a-fheel-blockg`rooving cutter, an endless carrier comprising aplurality of links, a jaw mounted upon each link of the carrier so as vto move with the carrier and extending substantially at right angles to the path of travel of the jaw so Vas to be engaged by an end of a Cuban-heel block when resting longitudinally on the ycarrier ywith the breast extending sidewise beyond the jaw at one side of the carrier, a gage situated at one side of the path of travel of the jaws and adapted to be engaged'by the breast of the heel block to cause the blockto be positioned on the carrier in engagement with Vthe jaw in predeterminedl relation to the cutter, means operable during ioo ibs

the actuation of the' carrier to clamp the block f on the carrier in the saidpredetermined re- 'lationtothe cutter,"and means for actuating the carrier, the cutter being situated at one sideof the path of travel of the jaws, whereby the carrier is adapted to advance to the cutter clamped Cuban-heelblocks nposition such that the cutter shall cut a groove inthe breast of each heel block inalongitudinal direction.

' 3. A machine for grooving the breasts of Cuban-heel blocks inl a llongitudinal direction, the ysaid machine having, in combina-l ris tion, a heel-block grooving cutter, an endless carrier lcomprising a plurality of jaws each adapted to be engaged by an endxof a Cubanheel block when restinglongitudinally on the carrier in predetermined lrelation to the cutter, the jaws being angularly adjustable on the carrier so as to correspond to the breast angle of fdilferent'heel blocks, means' operable.A

ies

during the actuation. of the vcarrier to clamp. the block on the carrier in the said predetermined relation to the cutter, and means for actuating the carrier, whereby the carrier is adapted to advance to the cutter clamped Cuban-heel blocks in position suchy that the cutter Yshall cut a groove in the breast of each heel block in a longitudinal direction. t

4. A machinetorgrooving the breasts of Cuban-heel blocks in a longitudinal direction, the said machine having, in combination, a heel-block-grooving cutter, an endless carrier comprising a plurality of aws each adapted to be engaged by an endof a Cuban-heel block when resting longitudinally on `the carrier in predetermined relation to the cutter, means operable during the actuation of the carrier to clamp the block on the carrier in the said predetermined relation to the cutter, means Jfor actuating thecarrier, whereby the carrier is adapted to advance to the cutter clamped Cuban-heel blocks inl position such that they cutter shall cut a groove in the breast of each heel lblock in a'longitudinal direction, and means operable at a predetermined position in theV path of travel ofthe carrier for an# gularly adjusting the-jaws to correspondto the breast angle of different heel blocks. i i

5. A machine for grooving the breasts of Cuban-heel blocks in a longitudinal direc-ev tion, the said machine having, in combina'- tion, a -heel-block-grooving cutter, an end less carrier comprising a plurality of jawsYY each adaptedto be engaged by an end of a Cuban-heel block when resting longitudinally on the carrier in predetermined relation to the cutter,.means operable during the actuation of the carrier to'clamp thenblockon the carrierk in the said predetermined relation to the cutter,'means for actuating the carrier, whereby the carrier is adapted-to advance to the cutter clamped Cu.ban-heel blocks in position suclithat the cutter shall;

cut a groove in the breast of each heel block in a longitudinal direction, and an adjustable gage positioned at av predetermined position inthe path of travel of the carrier for angu-v larly adjustingthe jaws toy correspond to the breast angle of diereiit heel blocks'. l

' 6. A niachineforgrooving the breastsof Cuban-heel blocks in a longitudinal direc# tion, the said mach-ine having, in combination, a heel-block-grooving cutter, anpendless carrier comprising a plurality of` jaws each adapted to be engaged by an end of a Cuban-heel block when resting longitudinally on the carrier in predetermined relation to the cutter, means operable during the actuation of the carrier to clamp the block on the carrier -in the said predetermined relation to tliecutter, means itor actuating the carrier, whereby the carrier is adapted to advance yto the vcutter clamped Cubanlieel blocks in position such that the cutterr shall cut a groove -in the breast of each h eel Yblock in a longitudinal direction, means operable at ay predetermined position in thepath of travel of the carrier for. angularly adjusting the jaws to correspond to the f breast angle of different heel blocks, vandAv I neans for relatively fixing the angiilarly ad-r justed positions of the jaws."` i

7. A machine for grooving the breasts olijf Cuban-heell blocks inv a longitudinal direction, the said machine having, in combination, ya heelblock-grooving cutter, a carrier, jaws mounted upon the lcarrier so as to travel with the carrier, eachrjaw being adapted'to sol on thecarrier in predetermined relation toV theA cuttter, the cutter being Ysituated at Vone v side of the path of travel of the j aws'wherel l cutter`l clamped Cuban-heel blocks in posi'-r tion such that the cutter shall cut a groove in by the carrier is adapted to 'advance to the the breast of eachheel block in .a longitudinal direction. i Y c i Si. A machine for grooving'the breastsV of Cuban-heel 'blocks in Va longitudinal direci tion, 'the' said kmacliinefhaving, in combina-1v tion, a heel-bloclr-grooving' cutter, an" endless carrier. comprising a plurality of links,

' jaws mounted upon the carrier so as to -move with'the carrier,each jaw being adapted to be engaged by an end of a Cubanheelblockf When resting longitudinally on the carrier with the breast extending sidewise beyond the jaw at one side of the carrier, a gage situated at one side of the path ont travel of the jawsy and adapted to be engaged by the breast o f the heel block to cause the block to be positioned on the carrier in engagement with'the jaw in predetermined Vrelation to the cutter,

and'- means for actuating the carrier, the cut?y ter 4being situated at one yside of the path of Y travel yof the jaws, whereby the Vcarrier is adapted to advance to the cutter clamped: i

Cuban-heel blocks in position such that the cutter shall cut a groove in the breast of eachv heel block in a longitudinal direction. 9. A machine for grooving the breasts of Quba'n-heel blocks in'fa `longitudinal direc-. tion, the said machine having, in Vcombina-i tion, a heel-block grooving cutterfan endless carrier comprisingaplurality of links,l jaws mounteduponthe carrier, so as toy move with the carrier, eachjawbeing'adapted to" y be engaged by an end'oif va Cuban-heel blockv when resting longitudinally on the carrier in being angularly adjustableon kthe carrier so Y predetermined relation to the cutter, thejaws i the carrier, whereby the carrier is adapted to advance to the cutter clamped Cuban-,heel blocks in position such'that the cutter shall p 'cutagroove inthe breast of each `heel'blocli l c in a longitudinal direction. v c

. l0. machine for grooving the breasts of i i' Cuban-heel blocks in a longitudinal direction, the said machine having, in combination, a c

4 heelbloclr-grooving cutter, a carriercompris'ingja plurality of jaws each adapted to be engaged by an end ofa Cuban-heel blockV when resting longitudinally on the carrier in predetermined relation to the cutter, means v for actuating the carrier, whereby the carrier vis f adapted to advance to the cutter lclamped Cuban-heel blocks'in position such Y kthat the cutter shall cut a groovein the breast of each heel block in a longitudinal Y scribedmyfname.

direction, and means operable-at a predetermined position in the path lof, travel of the carrier for angularly radjusting the jaws to correspond to the breast angle of different heel blocks.y l y 1 v c In testimony whereof, Irhave hereunto sub- WESLEY J. SHAW.

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