US36476A - Improved machine for nailing on the soles of boots and shoes - Google Patents

Description

Massachusetts,

a tube,"m,

`Two Slots,"5,

Gnoncnvv. PAR-nonnen LYNN, MASSACHUSETTS;

` IMPBOVED'MACHIVNE FQRNAI'LING'ON THE SOL Es or BoorsrANo shots Speciiication ibljming'pnrt o' Letters Patent No. 36,476, dated Septehiher 1-6, 1569.

To @ZZ whom it may concern.-

Be it vknown that I, GEORGE W. PAR'Ro'rr,

of Lynn, in the vco Fig. 3, a plan ofthe under side of the table on which the lastis supported 9, 10, 11, 12,'v4

and revolved;v Figs. 4, 5, 6, 7, l 8, 13, 14, and 15, details to be referred to.

The'maehine which is the subjectv of 'my present invention is for nailing the soles of boots and `sl1oes to being driven through and clinched'dowu o n a metal-plated last, andis,n1oreparticularb1 ap# i plicable to the manufacture of `thinsoled boots or shoes,

we ar. y

That others skilled ini-theart may nnder stand and use my invention, 4I will proceed to describe thc mann rin which I have carriedit ont.

In the said drawings,

such 1s-'those intended for ladies A is the bed of themachine, supported o'nlcgs a. From this bed l B, in-snitable bearings, on theI rises a frame,

top or' .which is carnied the main shaft C,

which is revolvedin the direction ofthe ar-y row byany suitable power applied'to the pul-v ley- D. A brace, b, connects the two end pieces ofthe frame B. 'A short vertical shaft, E,"sup ported in a bearing, g, attached to this brace b, carries a 4beveled gear, e,-wh'ch engages'with a gear, 7, on the shaft C." `A crankattached to the lower end of the shaft E has pivoted to y it a ro'd, h, which is pivoted at 3 to 'a block, F, which slides back and forth as theshaftC is revolved in waysi, supported on the'frame B and ou a cross-brace', 7;, of the frame. This cross-brace is attachedv to the frame B bya pin and slot, 45, which permits the brace to be raised andlowered to change the inclina.- tionof a nail-rod, There is also attached'tothc frame B and crossbracek a frame, 1, (detached in Figs.y 4 and 5,) 'through a. hole, 4, in the head of which (detached. in Fig.; 6,) `which is cient `lengthto`^fpss 'throught/the brace n n ty of Essex and 'State of have invented. au: Improved-1V Machine for Nailing on theSolesl of ]3oots,andif. following is a full, clear,

panying drawings, makina part of;

vertical section through lthe to be presentlydescribed.;-1

paS'SeSf he inclineofthc tube are cut one',through` ech Sifdfot on the .upper 'end of this inthe t'ube'by ou .each side, of the metal strip. '1 As theframei vs 'andhed p aredrawnback by the lever G,

this tube for about `halt' its-length and havey t through the head o. f Aringor ho1low head,p,(detached inFigLjV spring-rods, i", which f' are beveled at the outer end 'and lie-in the slots f corresponding notches .cu

l17,)1hasattached to it-two '5 of "the tube m, beyond they head 0'.

within the frame l and is distance in' the following manner: A pin, 7, which projects from one of, the side railsaof the frame s, just below the rail and 2,which is'pivoted at S tothe longitudinal brace b. Slots 9in the brace andfleverpermit which issecuredlby ,i o'rflowered, 'and the vlength of the vibrations of 'the lower'end of the positionof the pivot'8, a screw-nut, to be raised the lever to bevvaried.. ApinI and roller, 1 0, lever entera groove, 11, in a cam, g, on the shaft C, v the groove be-v ing so formed as to give therequiredmotion to the frame s1' to hold it stationaryforau instant while the nail is being cut off. The metal stri p or nail-rodt passes through a guide-tube,

' 'H', in which it'is free to turn over, the tubev u, which mayug'the brace being supported in a cross-(brace, beadj usted by raising or. loweri u .t o correspond .withthe brace k, the brace being attached o n-reach side to the frame B by a pin and slot, 50.

p, which is held. central each edge of the stri of wood which lies*- a lsmall rod the cl'ai'nps r take a fresh grip of the metall `strip t, and at the uext'vi brationof the lever carry thc strip forward an amount equal to the thickness of the nail tothe cut.

caused to grasp the edges of the metal strip t with' suticient force to'feed it inthe following manner: To` the -headiat .tched by pivots 3 two 'ends .of which are 'drawnl together to adjust `4. yA. srnall frictionroll, 5, is attached to Veach block of such a di-l f off the frame s are atb'locks, of, the opposite them by a screw-bolt,

ametcr that it extends beyond the edge ofthe block.,. Aslthe nail'is t m andthe nail-rod)and A1t fis .necessary 'to'.:zpr'esent thcunfailto: the vdriver,

the ends projecting-slightly f v v `-The`headp isattachedrto' f the-@head 6 of a,.fran1e,`s,fFig. 4, whichnlies capableot. beingl movedback and forth longitudinally-a, short vof thefra'me. Z, enters a slot in the lower end of alever, Gr, Figs. 1

This strip thenl vpassesA through the tube m, the rods -r lresting one on They are cnt slightly taperiug`(by withth'ep 'oint downward, 'thenetalistrip must e acens be revolved a half-turn cach time a nail is cnt off. This is done 4in thcfollowng manner: A

cylinder, I, Fig. 4, ylies within'the frame s, the

r are moved back and forth by the vibrations' of the lever G to produce the' feed the cylinder I, with the tuhe -m and metal strip t, are revolved a half-turn (tereverse the position of the strip t) each time the shaft C is revolved. NVlien the cylinder is in the position -shown in Fig. 4:` theclamps 'r may be drawn back; but when revolved a hal'ffturn as in Fig'. 15, the

clamps 1- press against the small rolls 5,: and

the clamps are pressed desvn'ontothe edge `ot' the strip t to graspit, ready for the next feed movement. i i

The vmanner in which a nail is cut 'from the l strip tand is driven at each revolution of the shaft Cwill nowbe'described.

Ablock, K, (shown detached irl- Fig 9,).is attached by pins 14 to a. head or collar, L,

which hangs 'on an eccentric, m, on the shafty ,0, 1. A slight lateral motion is given to this b ock K sutiicient to cut o a. nail, as fol' lows: An eccentric, v, on the shaft C is embraced by a strap, to 'which is pivotedat 15 a lever, M, which is' attached to one end of a short shaft, lui, which has' its bearing `in. the side of the frame B; (See Fig.,9.) j. A crank, y, attached to the other end of this shaft, carries a pm, 416, which plays in a slot, 17,'in the block K," sothatas the shaft C is'revolved a slight lateral motion. is given tothe block' K sutiicientto cut 4oli' apail. Pins 18 pass through slots in the lower end ot'. the block K to steady it'. The Vmovement of this block' K is, (of

course, 'properly timed with respect to` the feed of themetal strip A piece, z, (shown enlarged in Fig. 14,) attached to the lower end of the block. K, has a p in, 19, passing through it, which is secured in place at'ter being adjusted by a. screw passing through the' top of the block z. To this pin is pivoted a tapering'bar, o, which plays in a recess in the block, and is pressed out at its lowerendf by a,

spiral spring which encircles a screw, r, the

end of which 'serves as a lstop or limit tothe swing of the bar oaf 'Against 'this bar os the strip tis thrust by the feed to regulate the thickness of the nail cut.` The end ofthe nailrcd being inclined, the nail, after beingcut oti .der the driver if it. simply fell inte' a'straight recess; The piece on is therefore necessary to Keepthe nail central with its-point in the axis ofthe driver.4 i

A rorhu, which risesand falls verticallyin bearin gs iu the4 block K`,has' attached to its upside next would not beheld steady and straight uni per end a roll,` 20, Vwhich hears on,v a. cam, Fi

.2,1,whenV the rod is throwndow'n by a spirali spring, c, nail. A driver or hammer, eHFigs'. 2 yand 9, rattached tothe lower. end'of thcrod a, plays the block-K, opposite to a slot, 22, in a block,

,2, Fig. 11', attached'to the framcB.- The strip of metal t is fed through this slot 22 into the .recess in which the; hammer c? plays land against the stop o, and as the blockl K lis viybrated-the nail isy cnt off by the face of thtl 'block K,'(w hich` formsa pair of shea'rs with the blockf) and isthen ldriven bythe hainmere. i i i The shoe to; be nailed is placed` on a metal or metal-plated lasts- OL The-sole is tacked on',` anda plate, gfof less size thanthe soleyis secured on it.

.of `the block K aud'serves as aguide to regulate t-he distance at which the nails are driven from the edge `of the sole, and alsd'serves 1 to reep a the shoe beneath the driver willnow he` 'described. A1 table, I?,`(a plan ot' the under siile v ot' which is shown in LFi'g. 3 and a partial plan ofthe' top` side in Fig. 13 issu pper-ted at the thebed A on a frame, h?,`to which"V i it is pivoted' at 24, and which traine ispivoted shaft', Q, "whichfhasit-s bearings -in the stand- `ofi the machine:

'poisefweigh 1 audgan adjustingweiglit, m, which support the w'eig'htot'thc front o tf the table P anjd hold thefshoeiup to its werk. 4The the front edge of the table whenhe hastofre-v move or replaeea shoe on the jack 4z A shortV shaft, 25, which hasits bearingsiira bracket, 26,1 attachcd to the stand a, hasattachcd to it l a'halnd-lever, n, vand a lever, o", which is piv-` otedat27 toa rod, p, thelowcr end ot'whieh is pivoted to one of the arrns", asshewn dot- 1, so that by vibrating the lever n" l thes'haft -Q isroeked and the frontedgeofzthe 3 ted in Fig.

table 'Pf is raised foffthis tableis pvoted to legs r", which pro-1 ject one `en each sidelfreni a shams?, vvhichisV pivoted at 2S toa block, It, which 'cairbeadjusted in heightv byscrew-bolts Land nutsqz, passing through slots29inpthe stand a. This permits the inclinationof the table P tobe varied, by which the direction or inclination at` `which theinails are driven may be changed,

or the table befadjnstedto sxlt'diiierentsized 'ward the bed A and kcepsthefplateg@ in coni which is pivoted Vto a sliding block u, atfthe` gs.2 and 10, attached to theend ofthe shaft-. 1C, which sof such a forni as `to raise the rod 1 a? until theroll-20 drops 0d" from the shoulder with sufficient lforcegtodrivc thel up and down in'- a. recess yin' the lower end of This plate'` bears `against a i tongue, 23,)v`vhich` projects from thelower end thin sole datand smooth.` T-he feed'ot` at each side to an arm; z?, prqiectingt'roin a An1ever,"k",` 1 irojeeting-froni the middleof'lthe shaft Q, carries a counterf, l v

followingjdcvice enables the operator Ato lower' 1 lasts.' fAspringmf. attached to one ofthe legs` v which vibrates freelyjon the shaft b3.

opposite end of this carriage, supportsthe toe of the last.. j Stops 3l and 32, attached to the blocks u 4and u, project a short distance beneaththe Two racks, w2 w",.are attachedto the under side of the carriage. These engage alternately with a pinion, y2, Fig. 13, which projectsl above a disk, T, which is set inthe table P and is free to revolve therein at certain times, aswi'll be presently explained. Two guide-blocks,y 33 and 34, project above the carriage.

disk T and lie between -thel racks vw2 a2,- keenf ing the pinion engaged with therack on the upper side. Thepinionis eccentric to the disk T. These blocks are attached through 'slots in the disk to a bar, a3, which slides in guides 441cm the under side of the disk. This bar has a slight longitudinal motion. The shaft bs, which carries the pinion y, is supported in a step, ca, suspended by braces di from the lower side of the table P,- (see Figs. 2 and 3,)- passing` through au eye, 35, in the bar.

- The pinion y2 is Vrevolved in the directionV of its arrowA in the following manner: The lever M, which, as 'before explained, is vil' brated bythe eccentricoon the shaft C, is pivoted at its lower endl at 36 to a bell crank, U, Fig. 3, which is` pivoted at 37 to the under side of the table P- To the opposite end of this frame o r bell-crank U is pivoted at 38 a rod, fi, which is pivoted at'39 to a lever, g8, A slot inthe end 39 of the lever gra and another slot, 40, in the crank U permit the adjustment 4 of the vibrations of the lever g, to the outer end o f which is pivot-ed a dOg, "53, which is held by a spring in contact with theteeth of a cog- ;wheel, V, secured to the shaft b3. Thisadjustmentjofgtlie throwvof the leveigq's siheessary to canse the wheeljT to be fedalnngene, two, or more teeth ateach vibration Aofthe carriage S andthe vshoe faster or slowerto space the nails one from the other. xA ange '6r ri ni",41', projects from thelower side of the disk T. It is cut away on opposite sides in 'line with the bar a.

-A dog,h3,pivoted to the under side ofthe table P,is held upby a spring; l, and falls into one o f the notches in the rim 4l .against t'h'e vend of the bar a3. -A dog,42, is .pi'voted to each end of the bar a. Each dog is so placed'and held up to its work by asmall spring that'when the bar a is pushed along`in the direction ofthe arrow, Fig. 3,' and the dog h is pushed back by it out of the recess inthe of the table P, which prevents the'b'ar from' table P may be varied' without being accidentally pushed back,- which would .disengage the dog 42 from Athe .wheel V. As

the shaft b3 and cog-wheel y2 are eccentric to the disk T, the disk is supported independently of the shaft, revolving in a circular opening in the table P and being supported on friction-blocks which rest on the cog-wheel V, which,l in addition to its,` support on its Sha'ftba, has. one or more friction-blocks, 45, placed between it and the'braces d3, the pressnre or friction being adjusted by a set-screw passing through the brace d?. I have placed thisblock 45 on`the lower or down-hill side of the table P, as the j ack and last are held inclined to the direction of motion of the hammer e2, andv any tendency the disk T may have to vary -from the plane of the table Pis thus opposed. The portion 1 of the bell-crank U, which is pivoted to the end of the lever M, is also pivoted vertically at 46 (see Fig.' 2)v to the part 2 of this crank, so that the inclinatiouof the altering the connection of lthe crank with thelever M As itis desirable to place the nails in the rowl around the heel or around the toe at a somewhat greater distance one froml the other,l to prevent a crowded appearance, particularly in small-sized shoes, I make the following ad justinent of the parts to accomplish this: The

lever ga (see Fig. 3) has a slotin which the pinv 39, on which the vrod f3 pivots, is adjustable.-

By changing the pin in this slot the opposite end of the lever g3, tached,is carried at each vibration of the leverhigher or lower with'respect to the position' of thestationary dog It. l ver g is adj listed (by pin 39 in slot'40 of crank U) so that the dog i willffeed so many teeth of the wheel V as will give the required spaces` to the nails on the half-circle of the heel or toe while the plate T isrev'olving 'withthe wheel- V, at which time Vthe dog. h3 is pushed back bv the bar as.. Outside of the rim 41' of thei'sk lIthetail or longerend of the dog i3 maynow be carried, as the lever g vibrates, past the head3 of the dog h,- but when the'har af is pushed back, as in Fig. 3, and the'fcedfis'lto -.be along the sides of the shoe, the head 3 ol" 'the dog h enters oneoi` thenotches' of the rim 4110i' the disk T, and in this position intercepts the path of the tail of the dog 3,and does not allow this dog i5 to catch in theteeth of. the wheel V at the lat-ter part of the vibration of the lever gl-and consequently-the feed of the wheel is one orjtwo teeth lessandlhc nails are placed a litt-le closer along 'the sides of the shoe than they are at ,the-heel or toe.

The motion offthe block K, which cuts olf the nails, is peculiar. It has not only the lat eral motion atits lower end, given to it by the lever M,bnt also an up-and-down motion given by the eccentric m, on which it is hung. This latter motion causes the lower end of the block 'to press'- down on the soleof the shoe while the nail 'is being driven and relieves the-shoe;

of the pressure while the block is to whichthe dog i is at' ward: the shoe.

brated in the direction counter to the feed of the shoe. Otherwise the block wouldvohstruct the feed.

The followingis the operationl of this niaehine: The shoe vto be -nailed is put on thelast y O, the sole is put on, and the metal gudelplatcg'f s'taeked down on it. piu on the block u2 and the `aek 'vl spressed,

up against and supports the toc of the last. The distance of the blocks uffa apart. will depend on the lengthv of the last` used, and thisdeterniiues the point when the disk T shall* commence `to revolve to turn thelast to have 'the row oi'uiailsdriven around the hcelor toe of the shoe. i proper vinclination by adjusting, the blocks R. This determines :the inclinationv at' which the nails shall be driven. V'lhe'fronto'l the table is raised bythe Vbami-lever a? to Ibring thev edge ofV thesole (commencing tov nail near the toe) up under the block' K, witlrtheguideplate g bearing' against tlxevstop 23 'on the lower end of the block K. audspring t keep the shoe up tothe block K. A thin Vstrip of copper orother suitable metal or al loy is passed through the tubes I-I and m and is presented `to the block K, whiclrcutsothe nail in an inclined position, (adjusted by raising'or lon-'cring the braces k and za) so that a nail rnay'be eut from't-he strip, which nail is tapering toward'its point which is down t0- rlfhis vibrates the block K and cnts'off a nail from the rod t, whichhas been lthrust out thronghjthe=slot 22 in the. piece f, Fig. 11, against the spring-stop 03, Fig.,14. which accommodates ilselfto the inclined end of the nail-rod t. and hol'ds the nail after it is ent olt'in the proper position to be driven.

rPhe canilil on the shaft C, which has raised the hammer rod f as it continues to revolve, drops the roll 20, attached to this rod, from the shoulder 21V ot' the cam, Awhen the spring c2 throws down Vthe rod and its hammer il and d rives the nail through the sole of the shoe, elinehing it downA on the metal-plated last-O.

After anail is cut from the metal stript it is necessary that the stri p should beturned over to bring the point of the next nail down and he fed forward `toward the block KJ, VAS the shaft C is revolved the cogsf e revolve the sha'ftE. lhisthrough the rod/islides the block F in its ways @and the pin 12,1noving'in the4 groove 13 of the cylinder i, revolves this cylinder a hnltturmaml the clamps a' act as splines, sliding in grooveson theinside of the cylinder l, and also lie in the grooves 5 in the tube m, this tube is revolved'with the cylin-l der and the rod Ilis turned over. Immedi-v ately before the cylinder I is revolved the can] Aq on the shall'. C vihrates the lever G, whichis connected by the pin 7 to the small frame `s, which is drawn hack in the direction ofthe arrow,'1 `ig. 4, and carries back 'the clamps r, "which-rest one -on each edge `ot` the rodtto The last is Seton the The table P-is adjusted at ,thel

The weights' Zz m2 .The shaft Gfis revolved in? thedircclion of the arrow by power applied toy Ythc pulley D.

take a fresh grasp ofthe rod. 'When the cylind-er1 and tube m are revolved, these clamps` 'r strike on the small rolls `5,; asshown in Fig.

15,and the clamps are-pressed by the rolls onto the edges of the rod t, so that at the next vibration of the leverG, the frame s,elamps r,

l and rod t are carried forward to make the feed, y the rod t, as before, being fedup against the stop o, ready to havefanother nail cut off'at the next vibration ot theblock 1C.

driven and' while the bloclrl( is slightly raised Vby the cam m, on which it is hung, the shoe is fed forward the requisite distance. This is done :bythe lever M, operated Vby the concentricav'on the shaft C, which vibrates the bell-crauk U and lever g, (which hasbeen previonslyadjnsted l to give the required amount offeed.) and revolves the 'cog-wheels V and q2. This latter wheel, engaging with the rack fw, nieves the carriage S in the direction of the arrow, .i Fig.

12." This `.feed-is repeated at each revolution lof, the shaft. fC'untilv thestopl, attached to the block u, strikes the stop 33, which projects above the disk 'I,Fig. 13, `and no'ves the bar.; a3 in thc direction of its arrow, Fig. 3. This throws out tliedog h3 and engages one ot' the dogs 42 withtlie wheel V, when the dislcl is revolved along with the wheel V, and thclast Oand the shoe are' revolved afhaltcir'ele tol place the row of`inai1s around the' heel of the shoe. XVhen this half-circle is completed, the

dog h again falls intojthe notch inthe rim 4l of the dis-k, ypushes back the bar a, and dsengages 'the dog 42 from the wheel V, when the cog-wheel gft engages' with the 'rac'k x". and feeds the shoe along to complete the nailingot' the opposite 'side of the shoe. A When ,this is' done, the stop 32,

vdisk '1 is revolved to place the row 'of nails around the toe-of the shoe and complete the operation'. i

JI am awarethat -a lnail to be driven into a shoe has been eut from a strip of metal by a swinging gate or cutter. I dotnet, therefore,

'claim this, broadly; but

Vhat I claim as my invention,- and desire to secureby LcttersPatent, is-

1. The vibrating block K,for cutting oi the .Inail when the block is .hung on 'an eccentric,A

mi, by whieh'it is'raised to. relieve the press:

ure on the shoe while the shoe is being fed along under,it,substantially in the man-,neri

set forth.

' 2. Inclining the nail rod or stript tothe block or cutter K to cut the nail tapering and y turning over the strip after each out to prer sent the nail to'be driven with its point down, substantially in the manner specified.

:5. The lclamps r and the parts connected therewith for-feeding forward the stript,"in

combination with' the mechanism for revolvingl 'the said strip, substantially as ielscribed- `The form Y of the'eam `q holds the rod ,t stationary for an instant while it is being cut ofi. After a nail' is i attachedto the block ainear ,the other end of the carriages, strikes the' st o'p Sidand in the same manner as before the 4. The sliding block F, pin 12, and grooved cylinder I, for revolvin the strip t, substantially as set forth. .I 5. The adj nstahle braces k and u,for.'s ei;l;ing the :milj-rod 'at any required Vinclination to the block or cutter K.

6. The mechanism, A scribed, for feeding the shoe and turning round to place the row of nails around the heel and toe. v

f?. Adjusting thelver g3 so that the dog'i3 `on it shall strike the head of the'dog ha or other stop at; part of the vibration of the lever and thereby vary the feed, to make the spaces bei' substantially as deit tween-the nails dierentalong thesides of-the shoe and around the heel and toe.

8. Placing the c'og-whe'elgy2 eccentric 'to the.

disk T, so'that it shall engage vqith the rack, w orgawhich may be'on the upper side, substantially as specified.

l 9. The plate g', appliedV to lthe sole of the shoe, in the man ner and for the purpose specified.`

G. W.; PARROTT. Witnesses:

THos. R. Roma, P. E. TESCHEMACHER,

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