US530560A - Gang-punch - Google Patents

Description

FLETCIIRD. SWANEY, or KANSAS crrY, KANSAS. i

GANG-PUNCH.

SPECIFICATION-forming part of Letters Patent No.` 530,560, dated December 11,1894.

" Appnmion sied May 3,1894. serial No. 599.894. (mman.)

.To all whom t 17mg/ concern/.-

Be it known that I, FLETCHER D. SWANEY, of Kansas City, Wyandotte county, Kansas, have invented certain new and useful Improvements in 'Gang-Punches, of which the following is a -full, clear, and exact description, reference being had `to theaccompan ying drawings, forming a part hereof.

My invention relatesto gangpunches,and

has for its primary objectto producela power mechanism for actuating the punch which is positive and `reliable in operation; which is adjustable'so as to give the operator the desired purchase, and so that thepunch maybe elevated without completing the down-stroke, if necessary or desirable; and furthermore, fto produce a gang-punchha'ving the punches arranged so that they shall not all engage the `material simultaneously; and finally, to produce a punch which is simple, strong, dura ble. and inexpensive of construction.

With these' objects in View, the invention consists in certain peculiar and novel feat ures of construction and combinations of parts, as hereinafter described and claimed.

In order that the invention may be fully understood, reference is to be had to the accompanying drawings, `in which- Figure 1. represents a front view of a gang punch embodying myinventio'n. Fig.2. is a vertical section taken on the line --cc of Eig.

1. Fig. 3. is an end view ofthe same.` Fig. 4. is a view showing the connection between the ratchet-wheel mounted upon theshaft`,and

the actuating or power lever. Fig. 5. is avertical sectional view showing the spring-actu# ated pin engaging the pawl carried by said lever. Fig. 6. vis a detail view showing one set of engaging eccentric and anti-frictiontrollers, and Fig. 7. is a detail View of-thelink which connects Kthe same. i 4

In the said drawings, the frame of the gangpunch comprises the horizontal base'portion \1, and the ange 2, depending vertically from the front margin of the portion 1, and the l portion 3, projecting verticallyupward from each end` of the base portion 1,7which base portion, inoperative position, will be bolted upon a work-bench or stand', and with its de pending portion 2 iitting' against .the front side of the same. The front sides of the projec'tions or standards 3 are provided with longitudinally aligned recesses near their upper ends, `and in conjunction with bearing caps i,

and the base portion `1, at its junction withl the depending ange2, is formed with a longitudinal rib- 8, which connects the standards, and ihas its upper surface occupying the same horizontal plane las the upper surface of said supporting `flanges or ribs 7, so as to form, in' conjunction with said standards, and

saidribs, a solid and substantialsupport for the metal to be punched, and this longitudinal rib 8, from its pointof connection at one end with one standard 3, to its point of connection with the opposite standard 3,'is lo'ngitudinally and centrally slotted as shown at 9, and mounted in recesses at suitable intervals in said rib, are the dies 10, the vertical apertures of which register with the slot 9. A punchfbar l1 is arranged parallel with and vertically above the slot 9 and the dies 10, and the underside of this punch-bar is beveled so as to form the inclined surfaces l2, 12, extending `divergen tly downward from the middle of said punch-bar, and depending vertically from and to equal ddistances below the beveled under surfaces of said punch bar, are the punches 13; these punches being arranged vertically above their corresponding dies 10.` It will be apparent by this arrangement that the dies will operate in pairs and successively upon the material to be punched, so that little power in practice will be required to operate the punch, and that the' number of punches operating upon the material simultaneously, and their arrangement,

may be varied as required, accordingly as the material is easy or hard to puncture.

Rrojecting vertically upward fromeach end of the bunch-bar, are a pair of ears 14, and

connecting the inner or adjacent ears of each" pair is a bracing or strengthening web 1'5, which also projects vertically up from and forms apart of the punch-bar 11, and rigidly mounted in and`connecting each pair of ears 1liv near their upper end, is a shaft 16, upon Iwhich tit loosely upon the hub-anges at each` which is loosely niounted'the anti-friction roller 17, and projecting outwardly from each car 1li at the extreme end's of the punch-bar, is a ilange 18,: which flanges engage and are adapted to operate vertically in the verticalslots 1f), formed between the front side of the standards 3 and the vertical plates 20, which are bolted at their upper ends at 21, to the caps 4f, and the standards 3, and at their lower ends at 22, to the standards.

Rigidly mounted upon the shaft 5, and vertically above and frictioually engaging the anti-friction rollers 17, are the eccentrics 23, and projecting outwardly from the outer faces of the cccentrics 23, are the annular shoulders 24, which are concentric to the periphery of the eccentrics 23; and projecting outwardly fromthe outer `faces of the antifriction rollers 17,'are the annular shoulders 215, which are concentric to the shafts 16, and

engaging said annular shoulders 24 and 25,

are the circular openings 27 and28, respectively, of the link-plates 26; said link-plates being interposed snugly between the eccentrics and rollers and the standards 3 andthe ears 14, projecting from'theends of the punchbar so as lto be incapable of lateral displacement.

Keyed rigidly and centrally upon the shaft 5, is a ratchet-wheel 29, and said ratchetwheel is provided at each side with the hubianges 29a. A lever comprises the sleeves 30,

side of said ratchet, and are provided with the extensions or arms 32', which are bolted together and to the interposed lower end of.

the handle-portion 31 of the lever at their upper ends, and pivotally mounted upon a bolt 33, connecting said extensions or arms 32, is the double gravity-pawl 34; said pawl being provided, preferably, with the handle-portion 35, and this pawl is providedupon one face, and arranged concentric to the axis of said pawl, with the conical recesses 36, 37 and 38,

one of which is always engaged by the coni-' cal or beveled end of the spring-actuated pin `39, carried by the extension or arm of one of said sleeves.

When it is desired to operate the lever forwardly or toward the front of the machine in the punching operation, the gravity-pawl occupies theposition shown in Figs. land 5; the spring-actuated pin 39 engaging the recess 36, and holdingl the front end of said pawl in engagement with the ratchet-wheel, so that with the operation of the lever the ratchet q will beturned in the corresponding direction.

In order to prevent the p-unctured material from rising as the punches are withdrawn or moved upward, a longitudinal retainer-bar 41, is bolted or otherwise rigidly secured at its opposite ends in recesses formed above the recesses f6 in 'the standards 3, and with the lower side of said bar a suitable, distance above the upper side of the rib 8 and the flanges 7, so as to allow the insertion to andthe removal from position, of the mater-ialto be punched.

desiredl'iue parallel with its front or rear margin, gages are provided, which are constructed as l'ollo'ws: A pair of right-angled brackets,` consisting of the horizontal arms 2 and the depending arms/lf3, is secured near ti. opposite ends of, and to the front side ot", the depending lianges 2 lof the machine; and the arms 43 of said brackets are provided with longitudinal slots 4t, which terminate in enlargements 45 at their lower ends, and these brackets are supported' upon the headed bolts Jcdprojecting outwardly from the liange 2; the neck of said bolts being engaged by the upper and narrow ends of the slotsttl. Projecting vertically through longitudinal slots 47 in the arms 42, are bolts which also project through the gage-plates 48, and these gage-plates are held at any desired point of adjustment upon said arms by the clampingnuts47, which engage the projecting ends of said slots. The gage-plates '4S are recessed lat their front' ends at 49 to receive the outer margin of the plate to be punched, and projecting vertically from said gage-plates outward of said recesses, are the vertical pins 50, the object ot which hereinafter appears.

In order to adj ust the plateto be punctu red so that'the line of said punctures shall beat v pivotally adjusted tothe required position,

and clamped in such position by the tightening of the nut. t

In the operation of the machine', the plate to be punched is slipped through from the front or rear beneath the retaining bar 4-1 and the punch-bar 11, and is supported upon the rib 8. It introudced from therear its length vmust not exceed the distance between the endstandards, so th'at it may rest also upon th'e supporting Vribs 7. To adjust the plate so 'that the punctures shall be made in the required line, the gage-plates 4S are adjusted properly, and the front margin of the plate rests in the recesses 49. The lever is now operated in the direction of thew arrow, Fig.l

4, or toward the front, and the rotation of the ratchet-wheel causes, through the frictional actionV of thev eccent'rics upon the antifriction`rollers 17, the=punchbar to be moved beA apparent by the arrangement of said punchesthat the ,full power exerted is only required to puncturethe material intwo places at the same time. Itv will be necessary, probably, to make two or more strokes of the 'downward and puncture the plate, and it will lever before the eccentricinakes a half` revolution, whichis necessary to Amove the punchl bar down to its lowest point,` 'and with each upwardfrnovement of the lever the .pawlis .grasped and operated'so as to d isengage the' pinl 39, from recess 36, and immediately the.V limit of said upward movement is reached "said recess andsaid pinare re-engaged. -The 'Continued inove'rnent of the 'lever in afor- `ward direction willcoxnplete the revolution of the eccentriaand will kcause the saine to elevate the punch-bar to its original position, as shown in Figs. l and 2, through the operation off the eccentric shoulders "24 in the openings 27 of; theliuk-plates 26. It will` thus: be' seenlthat the eccentrics operating 4directlynp o'nlthe, 'rollers 17, 'exert a constant andfgradually increasing .power tomove the :punch downward,`and that said-punches,

after'the puncturing operation iscompletedg are raised quickly by the eccentric shoul ders operating in` the openings of the linkyplates. lIf desired, during the downward ,movement of thelevers, to rearrange the ma# terial to be lpunched before completing said down-stroke, the pawl 34 is operated pivotally until'. the pini-39 engages 4the recess 38and holds the oppositeorrear en d `of thepawl' into engagement with the ratchetwheel;` .The continu'edoperation of the lever will now on its 11p-stroke" rotate the shaft in the opposite direction, and will causefthe eccentric shouldersop'erating in openings ofthe linkplates t which'connect the shouldersof'i'said eccentrios with .the lshoulders of the `anti-friction'` rollers, to. withdraw or elevate, the 'punches .Y without completing the down-stroke. After the plate is punct'ured near.` one vnuelige;in;and

it is necessary to puncture the same nearthe oppositemargin, it is removed, and certain ofthe p nct'ures madegare fitted uponl thek pins projecting upwardly from the adjustable gageLplates, 'seas to hold the' plate' firmly in i/ts new position.` "These pins are neces-V lowsaidyplate-.to'

succeeding? crynext action'of the punchesj erator, which is'positivefan'd thereby and provided'with circ nparentrthat 'Ij'have produced sary, becans'ethe'roughened surface at the lower margiujof said punctu'res 'would not alrest firmly to receivethe' The centralre'cess 37, 'is'engag'ed by the pi 39, when it is desired to hold the pawl out of ith,the.ratchetwhechas will be vread-ily understood. y, 'L From the above description,

itwill be apli algangpunchntrol ofthe opl'y reliable infopfl eration, and which is simple,'strongiurabl andinexpensi'veof construction. g,

Havin' thu described my invention which is under the, perfect co ,what I claim as new, and desire to secu reby Letters Patent, is-1jr@ Y V If y1. In a-gangJpunch, theicombinationzvith a punchlban' and anti-friction ,rollers Acarried ular shoulders. arranged concentric t0 t'heiaxisof said roll ers, of a shaft', eccentrics mounted 'u potsaid shaft and-frictionallyi engaging said anti-fricl tion rollers,and provided with circular shoulders arranged concentric vto the periphery of ingsl engaging` the circular 'shoulders of the anti-friction rollers and of the eccentric's, substantially as set forth.

2. `ln a gang-pu nch,"the combination with a f l punch-bar havin gan oppositelyinclined lower lsurface, and punches depending vertically from said lower surface, and anti-frictionrollers carried by said punch-bar, andl circular shoulders projecting from said anti-friction. rollers and kconcentric to the axis thereof, of a shaft, ecceutrics mounted upon said shaft centric shoulders, and link-plates havingrcircular openings engaging the shoulders of said rollers and of the said eccentrics, substantially as set forth. 1

3. Ina'gangfpunch, the combination with a thereby, cfa shaft, eccentrics mounted upon said shaft and engaging said anti-friction shaft, a lever, and a pawl carried by said lever .and engaging said ratchet wheel, substan` tially as set forth. j

4. f In agang-punch,the combination with a suitable'framework, dies carried thereby, a

ers carried thereby, and circular shoulders projecting from said anti-friction roilers, of a shaft journaledr in'saidV frame, eccentrics iianges engaging said guidslots, anti-fric tion rollers carried by'said punch-bar, a shaft,

gaging said antigfriction rollers, and linkplates-having openingsengaging the circulan trics, substan tiallyras set forth. r

suitable `frarneworkprovided with a longif' tudinallyslotted rib, and dies carried by'said y .saine horizontal plane 'as the'upper surface of gsaidjrib, and brackets carried'by said'ramei` work, "of .alstablee gage-plates;carriedby` said eccentrics, and link-plates having open- 7 and frictionally engaging said rollers, and ecpunchbarand anti-friction rollers carried f rollers, a ratchet-wheel mounted upon said punch-bar above said dies, anti-friction rollroo mounted upon saidshaft and engaging said Y.

iro

of saidl recesses, substantially work, of areciprocatory punch-bar, havingl -eccentrics mounted upon' said shaft and' en` shQuldersarran'gedconcentric to thetaxi'siof 1 j I said rollersf-an'd circular shoulders arranged concentric with the periphery of saidieccenf 6. In agang-puncmthe combination with a said. brackets, a. gage-plate carried by said their inner ends, and pins projecting upward ro frame at one end, and mcans tol adjust said from said gage-plates, substantially as set gage-plate at an angie to the longitndinallyA forth.

extending slot of the rib, substantially as set In testimony whereof Iatiix mysignature'in forth. presence of two Witnesses.

'7. Ina gang-punch,'thc combination with a FLETCHER D. SVANEY. suitable framework, and dies carried thereby, Vitnesses: f of brackets secured to the framework, and G. Y. THORPE,

gage-piates carried thereby, and recessed at M. R. REMLEY.

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