US1078147A - Nail making and driving machine. - Google Patents

Description

L. E. JOHNSON. NAIL MAKING AND DRIVING MACHINE. APPLICATION rILnnnoma, 191a. J

1,078,1 4:7. 3 Patented Nov. 11, 1913..

. a bums-sum Wbmsask fll W 5* 0 -Lwn1nr:

-' LawrenoeEJohnson L. E. JOHNSON. NAIL MAKING AND DRIVING MACHINE.

APPLIOATION IILIED NOV. 8, 1912.

, Patented N0v.-11, 1913.

- s SHEETS-SHEET 2.

Lawrensc E.Jo1mson,

L.'E. JOHNSON." v NAIL MAKING AND DRIVING MACHINE.

I APPLIOATIQH TILED HQV. 8, 1912, I I 1,078,147. Patented Nov. 11, 1913.

a sums-sum a.

I son, a citizen of the United States of remove from one edge of blan'klapor- 4 tion of thestock, thus forming a nail -1e sembling a brad with a head progecting nnwi tnnen n. a 'onnson, or

"PATENT OFFICE.

wmrzrnon amssacnusn'rrs, AssIGNon TO JULIUS ARsT, or woncns'rnn, MASSACHUSETTS.

nAm AKine Ann nnrvine MACHINE.- I

Spe'eificatidn of Letters Patent.

PatentedNov.1 1,191 3.

" Application fi1edNcveinber-8-,'1912. Seria1N-o.730,488.

To all whom it may concern: V

Be it known that I, LAWRENCE JOHN- America, and a resident of Winthrop, inthe county of Suffolk and State of- Massachusetts, have invented certain new and'useful Improvements in Nail-Making and Driving-Machines, of whichthe following is a 1 specification.

This invention relates'fto; machines for. making shoe nails andparticularly-to that class of machines in which the nail is formed from a cc-ntinuousstrip of flat wire intermittently fed to cutting devices which in' turn sever a blank from the wireand then from one side of the body-.-

of nail, other devices controlled thereby will actuate the wire or blank being fed to move I it intosuch position that whenthe cuttlng devices operate substantially the: same amount of stock will always be removed from its point end.

The invention consists primarilydinmeans whereby the end of the blank or w re fed is. always so positioned relative to the cut-- ting mechanisms that substantially th'e'same' amount of stock will be removed from its point end regardless of the length of the nail being formed. a

' The invention further consists in a back stop provided with an inclined end against which the lower end of the blank or wire is adapted to be forced, prior to the operation of the. cutting mechanism, by a pusher or slidable member the position of which is regulated by the operation of the devices for controlling the length of wireto be fed.

The invention further consists in certain novel features of construction and arrangernent of parts which will be fully understood by reference to the description of the drawings and to the claims hereinafter given. 4

Of the drawings: Figure 1 represents an elevation of the front end of a machine embodying the features of the present in- I vention. Fig. 2 represents a left .sideele vation of a portion of the same. Fig. 3 representsa verticalsec-tion of a portion of the same, the cutting plane being on line 33 on Fig. 2. Fig. 4 represents. a hori-- zonta-l section of a' portion of the same, the

said view being drawn to an enlarged scale. Fig. 5jrepresents a similar view to Fig. 4, showing the. position ofthe parts after the nail. hasbeen' formed and moved into posi tion t o be driven. Fig. 6 represents a verticalsectionof the same, the cuttingplane being on line 6-6 on Fig.4. Fig. 7 represents a similar view tov Fig. 6, showing the position of the endof the ,wire when fed for .a short length of nail. fFig. 8 "represents a similar view showin the position of the formed. Fig.9 represents a right side eleing the'sta-tlonary knife, the back stop, and

vation of the. mechanism for'contro-lling the length of wire to be fed, a nd Fig. 11 represents a plurality of nails of various lengths adapted to be formedin said machine substantially the same'siz'edpoints.

throughout the'several figures of the draw- 1ngs.g l

In the drawings 10 represents a column having secured to its upper end a head 11, said head being of any suitable shape. to support the working parts. In the head 11 is mounted a revoluble shaft 12, driven in any suitable manner. To the front end of the shaft 12 is secured the driver lifting cam --13, adapted to act upon a collar 14 fixed on the driver bar 15, the lower end 1 cam 13isadapted to lift the bar 15, while a suitable sprin; 17, acting upon a lever 18, is provided to epress said bar. The shaft 12 has also secured thereto the disk 19 having in its front. face a cam groove 20 and in its rear face another cam groove not shown. In the cam groove 20 is positioned a roller mounted upon astud 21 of a lever 22 pivoted at- 23, the lower end of said lever being provided with a segmental rack 24,,

at its outer end a pawl carrying arm 27-.

all of said nails having the same sized heads and Similar characters designate like parts cutting plane beingon line 4-9-4 on Fig. 1,]

pusher when'a full length of nail is to/be 'vation of a portion of the machine supporta 1 the driver guide. Fig. 10 represents an ele-.

of which is-pro-vided with a driver 16. The

the teeth of which engage the teeth of the pinion 25 secured to a short shaft 26 having This arm 27 has pivoted thereto, a ,pawl 28 acted upon by a spring 29 to'nor nal'ly retain it in engagement with the teeth of the ratchet whee130. -The pawl 28 has aB-constant-throw and would consequently always have a definite stroke, thereby moving the strip feeding wheel 31 a definite distance and causing-it to act against one edge of the strip 32 to feed it always for a like distance. In such case the nails would all be of a certain length. In order, however, to vary 1 sired. This lever 34 is moved by hand and the length of the nails this pawlhascombined with it a shield 33 as shown in Fig. 3 attached by screws to the length adjusting- 15 lever 34 having a fulcrum on the shaft 26 alongside the ratchet wheel 30. It is ob- .vious that by moving'this lever 34 the shield may be interposed between the ratchet wheel 30' and the pawl 28 so that the. effective stroke of the pawl 28 in moving the ratchet wheel may be altered as desired to cause the strip to be fed for a greater or less distance. according to the length of 'nail de- 'by a pawl 38 to prevent the shaft 12 from turning backward. The strip 32 is taken from areel 39 suitably mounted on the machine, andis led through'asuitable guide 40 and, then between thefeed roll 31 andacoiiperating roll 41 mounted on a stud carried by a lever 42 pivoted at 43. l The opposite end of said lever 42 is provided with a pressure adjusting device shown as a screw 44 whereby the pressure or force with which .the strip is grasped may be varied. After passing below the feed wheels 31, 41, the strip 32 enters a guideway 45,

said guideway being made of a steel hlock .having its lower end hardened.

The machine 'is provided with a vertical bearing for the shank 46 of an oscillating lever. 47 provided at its inner side near its outer end with a steel block'48 having a I vertical peripheral groove 49 adapted to thereto. The groove 49 extends through a lip 50 extending outwardly from the pereceive 'a' portion of the strip 32 when fed riphery of said block 48, -said lip conforming in cross section to the shape of the head desired for the nails to beformed.

When thelever 47 is moved about the axis of the shank 46 thereof the upper Surface of the block 48 will travel beneath and in close proximity to the hardened end of the I guide 45,-- acting therewith to cut the strip transversely into nail lengths or blanks;

The lever 47 has upon it a loose block 51 retained in place by a-collar 52, said loose 49 arrives opposite the driving block being embraced by aforked block 53 having a shank 54 which is entered loosely in a hole in the lower end of the lever 55 pivoted at 56 and having a roller or other stud 57 which-enters the cam groove in the back'of the disk 19, said cam groove being shown only in dotted lines in Fi". 2 of the drawings. The loose fork enables the two levers 55 and 47, one in a vertical and the other ina horizontal plane, to work freely. The head .11 of the machine has secured thereto .a tubular nose 58 held in position by means of the set screw 59, as indicated in Fig. 1 of the drawings. When the-machine is in operation the nail formed is driven by the driver 16 into the work through this tubular nose 58, the nose resting upon the work presented thereto by the hand of the operator. The tubular nose 58 is partially embedded in theplate- 60 secured by means of the screws 61 to the projection 62 forming a part of the head of the machine. Above the said plate 60 this projection has an inclined slot formed therein in whichis placed side by side a back stop 63, a fixed lmife or cutter 64, and a driver guide 65. 'These members, 63,-64, and 65, are held in adjusted positions by means of the screws 66 threaded to the projection 62. When the strip 32 has been fed through the guide 45 a suflicient distance into the groove 49 thelever47 will be moved causing the strip to be cut off between the upper slde of the lip 50 and the lower hardened end of the guideway- 45., The blank thus formed andv positi'oned within the slot 49 is borne agsrnst the fixed knife 64, thereby causing a portion of the stock to be cut from one edge 'of this blank, and in doing so leaving ahead the full width of the strip and of a depth equal to the depth of the lip 50. The nail having been thus formed the lever 47 continues its movement in the direction in which it started until the peripheral groove 'oove .67 formed in the steel block 68 hel in fixed position opposite to the outer peripheral face of the block or die 48. The block 48 is secured to the lever 47 by means of the screw 69 and constitutes a movable cutter member which coiiperates with the fixed knife or cutter member 64.

The machine as thus far described is substantially the same as that shown and de-,. scribed in Letters Patent No. 562,597 issued a June 23, 1896 to J. B. Flint and A. J. Howhave thicker points than the longer nails chineregardless of length should have their points of substantially the same: dimension: Inorder to obtain this result the} distance between the inner end ofthe-- bottom of the back stop -63 and, the innerwall of the groove'or' slot491ise'qual to'the w idt'h of the strip 32, while thedistance between i the: upper part of the inner wall oi the groove:

or slot 49 and the; end 70 of the back stop63 is greater; Bythis means i'f'the strip 32isfedsuficiently'to: form. a full length nail the lower end thereof'when fed .will contact at one edge with theentire inner wall of the groove 49'while' its opposite-edge will contact" with the extreme lower portion of -.-the inclined wall '70. Should the lever 47 be operated when the-strip 32 has been fed into the peripheral groove 49" a distance equal tothe length ofthe longest nailga nail will beformed similar to-that shown'at Should thea: in Fig. 11 of the drawings. strip-32 be fed for any shorter length of mail it is necessary in order to secure thesamedimension of point thereto that the lower extremity of the wire or stripthus fed should be forced against the-inclined walls 70 0f the back stop63- before the cutting the'slidable member 71-." When-.the 1ever47 is inits normal position the slidable memb'er' devices operate. 1

In Fig. 7 of the drawings is shown the strip 32 fed into the peripheral groove 49 a distance suihcient to form the shortest length of nail, as for instance the nail b shownin Fig. 11 ofthe drawings It is evident that in order to form this nail it is necessary that the portion of the strip 32 fed below the guide should be bent to the right as indicated in said Fig. 7 until its lower extremity contacts with the-inclined wall 70, and some means must be provided to retain this bent portion in contact with theback stop 63 until the-cutting'operation takes place. The means provided for forcing the fed portion of the strip 32 against the inclined wall is the slidable-memberor pusher 71, this slidable member beingp'ositi'on'ed in a groove inthe under side of the lever 47 and held in position therein by means of the plate 72 secured to the under face of said lever. This slidable member 71 is provided at its inner endwith a thin ex tension 73 of the same width as the width of the groove 49. This extension 73 is normally positioned in the groove 74 cut transversely. of the steel block 48 forming the movable cutting member, said groove 74 communicating with the peripheral groove 49 in the same plane therewith. The extreme end of this extension 73 is downwardly inclined as at 75, so that as the strip 32 is fed from the guide 45 its end "will strlke the inclined end: 7 5 when the slidable member 71 This-cam member is a part of the- .34 carrying the shield 33 regulating; the stroke of the-pawl 28. Theface oi the'c'am- "has moved from its normal position theri'ghb' asindicated 'im said Fig. 7. As thi strip 32 continues-to be fed downwardly, it is "obvious thatits-jextreme lower end will be forced'into contact with the'inner end 70' Of thBback 'stopi'fitl; This pusher or' slidable member 71' and its extension 73 are=held iiorma-lliyin theposition shown in Fig; 8101 the drawings by means- 0fthe spring 76' which- 'forcessaid member "-71- into contact with the inner wall of the lever'77 pivoted at:78' and provided at its upper endwiththe roller"79= held. in contact with the iace'of'the cammember 80 by means of said spring ever member 80 is so formed that it willmove,- throu h the lever 7 7, the sl-i'dabl'emember 71- -a-.su c'ient distance to frce the strip 32 intocontact with the inner wall" 70 01- the back stop" 68 for any given length Osman; Inother words, when the full l'ength'nail is= to be formed no movement of the enable member 71- is necessary, but for any shorter' length of nail it is necessary that, the slid-- able member 71- should: be moved toward the greater the distance it isnecessary to move:

this bla'nk'to becarried into contact with the fixed cutting knife 64 and a portion ofthe. stock will be cut-away'from-one edge of -the blank as the movable member 48 passes by the shearing knife edge of the member64r Further movement oi the lever47 inxthesame direction carries the nail= thus formed .into a position opposite the groove 67' and beneath the driving member 16. The-driv 'ing member is then free to be operated in the usual manner'to drive the nail: through the nose piece-58 into the stock to benailedz For convenience the level- 34' i'sprovi-ded with an: opening 81 therethrough,-through which the graduated scale '82 -may be-seen-to assist in registering'the-position-=of said le ver 34 and thereby determine the-sizie of the back stop a predetermined. distance, depend ,ent upon the length of nail' to be formed, that is, the-shorter the nail to be formed: the

nail to-be used; It is obvious that when-file lever 34 is moved intoposition fora-given size ofnail: as indicatedon said scale 82,-

shield'33 will" be moved into a position to givea certain: stroke and cause a constant 5 tion of the wire relative to feeding of the-strip 32 until the position of the lever 34 has been a ain changed for another length of--nail. he same movement of the lever 34: will cause the cam member 5 8.0, to operate the slidablefmember 71 and move it the required distancefor the length of nail determined by the position of the lever 34;. The locking member 35 will then retain the lever 34:and all of the par-ts actuated thereby in adjusted position. When the lever 34 has been onceadjusted and locked in position the machine will continue to operate to formv nails of the predetermined length until the lever is shifted for another length. The1ever'77 is provided with. a lug,

.15 83 extending rearwardly from its lower end, said lug having'a cam face 8 1 againstwhich bears the end of the slidable pusher-member 71.- This cam face 84 issoformed that when the blanksevered from the wire 32 into a .position beneath the driver 16 the slidable member 71 will be moved outwardly by means of the spring 76 out of the path of said. driver to when formed. n the reverse movement of .thelever (l7 the cam surface 8e will act upon the member 71 to return it to the position in which it was originallyadjusted.

By means of a machine "constructed as may be formed from-a strip of stock and each length of nail will have apoint suitable for ready insertion into the work being .operatednponand adapted t6 be readily clenched therein. 1 I

It is believed that the operation and man advantages of the invention will be thoroughly-understood from the foregoing description. Y Having thus described my invention, I claim:

1..- I na machine of the class described, the combination of wire feeding mechanism; slabbing mechanism for removing stock m one side of the wire fed, manually controlled means for. severing from said wire-nails. of different lengths; and manually operated means for varying the'posi- 7 said slabbing mechanism-so that the points of all the nails cut therebywill correspond.

; 2, Ina machine of the class described, the combination of a slabbing mechanism for removing stock vfrom one side of a wire;

' mechanism for feeding wire to said slabbing mechanism; and manually controlled means for incliningthe wire thus fed prior to the slabbin operation:

59 3. In a mac ine of the class described,

combination of a slabbing mechanism for removing stock from one side of *a wire; meehanism'adapted-to; be adjusted to feed predetermined lengths of wire to said slabgs-bing mechanism; and manually controlled the lever 47 is moved about its axis tocarryr ermit it to drive the nail herein described nails of various lengths wardly inclined operatin means for insuring the removal of the same amount of stock from the extreme end of said wire for all lengths of nail.

4. In a machine of the class described, the combination of wire feeding mechanism; means for inclining the end of said wire; and means for cutting stock from one side of the inclined port-ion and severing a length from said Wire to form a headed nail.

5. In a machine of the class described, the combination of wire feeding mechanism; manually controlled means for varying the inclination of the end of said wire for various lengths of. nails; and means for cutting stock from one side of the inclined portion and simultaneously severing a length from said wire to form a headed nail.

I 6. In a machine of the class described, the ,combination of wire feeding mechanism; an

oscill ting member movable transversely of the direction'of feed of said wire and provided with a slot adapted to receive a portion of said wire; a fixed knife coacting with said oscillating member; and a slid able member in said slot adapted'to vary the position of the end of wire positioned in said slot.

- 7 In a machine of the class described, the combination of Wire feeding mechanism; an oscillating member movable transversely of the .direction'of feed of said wire and provided with a slot adapted to receive a portion of said wire; a fixed knife coacting with saidoscillating member; a slidable memberin' said slot adapted to vary the position ofthe end of wire positioned in said slot; andm'eans for varying the position of said slidable member in said slot.

8. In a machine of the class described, the combination of wire feeding mechanism; an

oscillating member movable transversely of the direction of feed of said wire and provided with a slot adapted to'receive a portion ofsaid wire; a fixed knife coacting with said oscillating member; and a slidable memberin said slot provided with a downend adapted to bemoved into the .path 0 said wire as fed.

9. In a machine of the class described, the

combination of wire feeding mechanism; an

oscillating member movable transversely of the direction of feed of said wire and provided with a' slot adapted to receive a portion of said wire; a fixed knife coacting with said oscillating member; mechanism for controlling the amount of feed of said wire; a slidable member in said slot adapted to vary the position of the end of wire POSI- tioned in said slot; and means operable by said controlling mechanism for vary ng the position of said slidable member in said slot.

10. In a-machine of the class described,

the combination of wire feeding mechanism;

mechanism for cutting nails from the wire as fed, said mechanism consisting in part of in part of a movable member; a back stop having an inclined end; and means carried 7' movable member for forcing the end "of-the wire against said back stop prior to the-cutting operation.

" 12,-1In'a machine of the class described, the'combination of wire feeding mechanism; cutting mechanism to which the wire is adapted ;.t }o=be fed adapted to remove. an elongateds'ection of stock from one side of the wire; and manually operated means for adjusting said feedlng mechanism to feed a predeterminedlength of wire so that various lengths of nails may be cut with the same shaped points without altering said. cutting mechanism.

13. Ina machine of thewlass described, thecombination of wire feeding mechanism; an oscillating member movable transversely of the direction of feed of saidwire and provided with a slot adapted to receive a portion of said wire; a fixed knife c'oacting with said oscillating member; a back stop; 35,

and a slidable member in said slot adapted to form the end of wire positioned in said slot against said back stop.

14. In' a machine of the class described, the combination of wire feeding mechanism;

an oscillating member movable transversely of the direction of feed of said wire and provided with a slot adapted 'to receive a portion of said wire; a fixed knife coacting J withsaid oscillating member; a back stop normally in the same planewith said slot;-

a movable member in said slot adapted to vary the position of the end of wire po-' sitioned in said slot; and means for moving said member: in said slot and forcing the end of thewire against said back stop.

15. In a machine of the class described,

the combination of wire feeding mechanism; an oscillating member movable transversely of the direction of feed of said wire and provided with a slot adapted to receive a portionof said wire; a fixed knife coacting with said oscillating member; a back stop; and a slidable memberin said slot provided with a downwardly inclined operating end adapted to be moved into the path of theend of the wire as fed thereby forcing it against said back stop.-

'16. In a machine of the. class described,

the combination of wire feeding mechanism;

an lbscillating member movable transversely ling the amount of feed of said wire; a back of t-hedirect-ion of feed said wire and pro vided with a. slot adapted to receive a portion of said wire; a -fixed knife coact-ingwith said osclllatlng member; mechanism for controlstop; a slidablemember in said 5101; adapted to be moved to force the wire as fed against said back stop; and means operable by said controlling mechanism for varying the position-of said slidable member in said slot.

17, In a'machine of the class described, the combination of a fixed cutting member; a movable cutting member provided with a slot to receive wire stock; a back stop; a

pusher carried by said movable cutting member adapted'to force the-lower end of the stock against said back stop; and means for moving said movable member into position to coact with said fixed cutting member and thereby form a nail from said stock.

18; In" a machine of the classdescribed,

the combination of afixed cutting member;

a movable cutting member provided with a slot to receive wire stock; a back stop; a. slidable member having anLinclined end; and means for operating said slidable mem-. her to cause said inclined end to enter said slot in the path of said stock thereby forci'n its lower end into contact with said bac stop. 19. In a machineof the class described, the combinatioriof a fixed cutting member; a movablecutting member provided with a slot to receive wire stock; a back stop having its inner face inclined with its lower end distant from the bottom of said slot the "width, ofsaid stock; a slidable member having an inclined'end; and means for-operating said'slidable member to cause said in clined end to enter-said slot in 't-hepat-h of 5 saidstockthereby forcing its lower end into. contact with the inclined edgeof said back stop. o

-20. In a machine of the class described,

the combination of a wire feeding mecha-. 1 10 nism devices for severing and slabbing said wire; a back stop havmg an inclined operating end; a slidable member adapted tov force the wireas fed against said inclined lend;-adevice for regulating the operation of said feeding mechanism; a cam operable thereby and means interposed between said I cam and said slidable member wherebyaa predetermined feed of the wire will impart --a desired movement to said slidable member.

'21..In a machine of the class described, the combination of a wire feeding meohani'sm; devices for severing and slabbing said wire; a back stop having an inclined operating end; a slidable member adapted to force the wire as fed against said inclined end;a device for regulating'the operation of said feeding mechanism; a cam operable thereby; and apivoted lever provided atone end 4 with a cam contacting memb r and at ,the'180 *24.I n. a machine ef the class described the; combination bf a wire :Ee'edin g. m'echr end bi said elidable mflrher nism.;;-deviees, for sev ring; and; "slab l g said an inclined eperater; ade' ted; to force the wirefas- Iagainst said inc ind end; "a

spring; fprf nbrmdlly retaining Shiislidkble member. out f the pith ef saiti wire; a de- Vie'e fOrLreguIatinQ-the operation 6f said feeding mechanism; acam operable there-- I and a..- piveted level; prorided-nflone end with a, cam contacting member and at the ether aid with an in'c'lined surface contact ingwith-the end of said slidable member.

adepte "to receive'i thewire aeffedg. aLJba'ck Step gp'po siite' said-slot having flm'e'tpp efits' inner end ,a greater distance from the" inner wan 36f said 'sldft' than its lovvnegrtelid';' and means eqntrdlled byfthe'wireifeedingmech 'nis'mifor'retaining the end q-f'the wireifed; in e0ntact-,.with.'said inner-emf preparatory to the movement-pf said oscillating member to form a nail;

.In: a; maehine of the enss described,

inner: end a; greater fdi stance from the inner "We-1'1 strid 's'lot 'than'itsflower. end 5' means eol'itrdll'ed by the Wirefeed'm 4 n.- tabtfwith saidrinner end repa-ratery *td'tlie 1y retaining lsaidgjslidhble 'szz' djf i riverfpribr letter.

i n M dmwin .eseiae eeeaimg memm mechanism a'ting member "to after ite-ilhbbing'qperatiowhns been comi'pleted.

memberwhenat the end if its'movmt i' '26. Infa' machine tif'the described,

theflepmbinatibn of wire the combination. of wire slabbm whiclrsaid wireisied; 'a's lifla leanemberz'a'd' ed to be moved 1 a g's tinet"- one edge-0f eaid' Wm: "and position" difiingfthe' cutting -11 'onq a driven; niebhanism Torumo'virgg: the i'io'rmed T-nifil beneeth'the'driverfand'means forwichto lthe fopnfatibn' er the fibrmed nhiI- beposition" it"din- 'mg cutting tion ;a

driver; meehenilnifformwing fthf withdrawing 's aid" fionmg'memhe'r mm the' -paith"6f said "vewrnaw-m Operabemoved against one edge bf'seiawxre'end position'fit iiui'ingfgthe-mftting Operation; :1 driver; mebhenimn' fer mofing the formed m1 beneath the *fifim: means for with- WAnmE,

mechanism"

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