US384199A - frost - Google Patents

Description

(No Model.) m 3 SheetS-Sheet 2. J. B. FROSJ..

RIVETING MACHINE.

Patented June 5., 1888.

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wmvfssfs v (No Model.) 3 Sheets-Sheet 3.

, J. B. FRGST.

RIVETING MAGHNE; NQISMJQQ. Patentad June 5, 1888.

vas will enable others skilled inthe art to UNITED STATES PATENT Fries.

JOHNIB. FROST, OF AKlON, OHIO, ASSIGNOR OF OEYHALF TO GUE.

SITET,DON,OF SAME PLAGE. i

MACHINE.

SPECIFICATI'ON forming part of neuem Patent No. 384.199, dated Ilm@ 5. 1888.

Application filed Deel mller 9, 1"'

ToaZ whom, it may concern:

Be it known that 1,.'JonN B. Fnos'r, of A k ron, in the county of Summit and State of Ollio, have invented certain new and useful Inlprovelnents in Rivetingdllaehines; and `I do herebydeelare the following to be a full, clear, and exact description of the invention, such which it pertains to lnalle alld use the same.

My invention relates to improvements ill riveting-nlaehines for attaching the cutterblades or so-ealled seetionsi7 to the sectionllar to fol-nl what; is known as the knife ill reaping and mowing` machines, ill wllicb wires are drawn into the4 machine and eut tol'eug'llls for rivets', the sections and section-bar are brought into position for riveti.ng,':lnd the rivets are inserted ill their places and sinnlitaneously riveted or upset ateither end, the entire operation of the machine being,r alltomatie,to the elld tllat the wol-k is wel l, cheaply, and quickly d'one.

Vith these objects ill view nly invention consists in certain features of construction and in combination ol parts hereinafter described, and pointed ont in the claillls.

In theaecolnpanying drawings, Figli rc l is a side elevation.v ligfZ is an enlarged elevation, in longitudinal section.' of the one-half of the machine. Fig 3 is a plan,"partly in section, of the central pol-tion of the machine. Fig. 4 is all elevation ill crosssection on the Fig. 5 is an elevation ill sectio'n on the lille y y, Figel. `l `i G is :ln ele vation in section on the lille .'rlr, Fig. Fig. '7 is a side elevation of the central portion of the machine, illustrating more especially the sectioirfeeding device. Fig. S isV a plan of cross-head J and the ways between whiell the vcross-head operates.

A represents a supporting-fralne having suitable boxes, ill which isjournaled the driving-shaft l. On the one side of thehlachine (see Fie. 4) and connected with franle A project brackets j', and A2, fol.l supporting the upright shaft (j, the-two shafts being intergeared, as shown, with unter-gear. On the upper elld of' shaft C is mounted crank (Y, the Wrist of which latter is connected by a pitnlan, C2, with cross-head D, for reciprocating the lat ter on way LV. (Sec Figs, 5 and 6.) This way stl-inl waste-Loo. (No molt-l) connected with frame A and having elongated holes or slots,tllrongh which the bolts D2 pass, that secure the way to the brackets to render the way adiustablesidewise, to bringitin lille with other parts of the machine. (See Fig. 3.) To cross-head l) is adjustably secured the angie plate D, the heads of the securingbolt d operatiugin undercut slots r2' of the cross-head, to render the angle-plate adjustable lengthwise of the erosshead. A puslrbar, di, is attached to the fare of the angleplate. rllle plate is of considerable length and width, bllt corresponds in thickness with sect-ions f, and being thus thin it is supported by al stift eningbar, rl, secured along the upper edge of theplate. The section-bar F and the'seetion, f, that is to be riveted tothe bar at one end thereof are placed by hund into the machine in'position for riveting.

A quantity of sections are placed in the holder F', the latter consisting ol' a bottom and Sides supported from brackets A. A nlovable head, F, operates ill this bow-dike structure, and has a col-lbf, attaclled,tllat lcadsover sheaves f, and has a weightJ", secured to the elld of the cord for pressing the sections against the sectiol'l-bar. llle pusll-bar draws back past the section-holder, wllerellpoll weiglltj" moves the section toward the section-bar,

bringing the forward section ill lille with the puslrbar. The next forward lnovelllentoi' the push-bar slides a` section along by the side of the section-bar until the nlovingsectiou strikes the ser-lion last riveted, alld from thence on lllov'es theY section-bar, leaving at the end ot'` the stroke the section-bar and loose section in position to be. riveted together.

On drivingshaft 'l are mounted two eccentrics, B, for operating the riveting mechanisln, and by the side of these eceelltrics are mounted two cani-disks, ll, for operatingthe dies that ellt the wire into lengths for rivets,- an eceelltrie and the adjacent disk being` usually connected together, as shown, by a stud; also, there is mounted on shal'tlla eanrdisk, l, for operating,r the feed-rolls that draw the wire illto the machine. l )isk iii has a cam-groove, b, on the faee thereof, and disks lli have caln grooves b2 on their respective faces.

The wire for the rivets is in two coils mount 'ICO ed on reels, (not showin) and is drawn from thence into the machine by means of feed-rolls E and 'E'. These rolls are intcrgeared, and are provided with two sets of grooves, e, for grasping the two wires, the grooves being located the exact. distance apart to correspond with the holes in the sections and section-bar. The trunnions of the upper roll, E, are jotlrnaledin stationary boxes, while the trunnious of the lower roll are journal'ed in bonesl E, that slide vertically in housings E, 'with flat springs e' located below the boxes, upon which the latter rest, and by the tension'ot` these springs .the necessary upward pressure is had on the lower roll for feeding the wire. provided with gear c2, that engages a drivinggear,G. The latter gear is mounted on a stud, G', the stud being secured to a lever, l2. This lever is fulcrumcd at G, the bolt or stud at the fulcrum being tightened sufticiently to hold the gear in mesh, while the opposite end of lever GZ serves as a handle by means of which the gears may be disconnected or thrown into mesh. Connected or integral with gear G is a ratchet-wheel, y. A lever, y', ofthe bell -crank l variety, is mounted on stud G', the short arm of the lever being provided with a pawl, g2,

for engaging the ratchct-wheel. The long arm of this lever is connected by rod gii with lever II. Lever 1I is fulcrumed at II', and is provided with a laterally-projccting wrist, 112, that operates in cam-groove bs of disk B3. By means of the cam-groove andl the connecting mechanism just described the feed1'olls are in- Itermittently'rotated the necessary distance to draw the wire i nto the machine with each stroke nof the latter the distance required forthelenglh of the rivets." y

Ihe mechanism for severing the wire into rivets is as follows: To a part of frame A is bolted plate I, the latter having transverse slots Iand l", said slots having undercut walls, forming dovetails with dies t' and i', these dies being adjustable crsswise of plate I, and are preferably held in place by means of a driving lit. To frame A are secured ways I, bctween which ways reciprocate the cross-heads J. The cross-head is provided with depending arms J', these arms having laterally-projecting wrists, on which respectively, arejournaled rollers J, these rollers operating yin canrgroovesbt' ol" the respect-ive disks B2., by means ol' which the cross-head J land attach ments are given the necessary vertically-reciprocating movement. recessesin cross-head .I are seatedl the two blocks J, the securingboltsj` passing through verticallyelongated holes and the blocks resting on setscrews j', by means of which the blocks may be adjusted vertically. On top of blocks J vare secured the die`holders K, these holders having depending ribs 7c, that it in corresponding grooves made in the upper faces of blocks J, and the securingbolts 7c' passing through elongated holes, by means of which the die-holders maybe adjusted in the direction toward or from each other. Tov

The lower roller is' In suitable verticalv die-holders K are respectively secured the dies L, for cutting the wires and for elevating thev severed pieces or rivets in position for entering the holes in the section and section-bar. The

dies have bevcledlowcr ends, L', that tit-in corresponding seats in the dieholder,(see Fig. 2,) these dies being secured by bolts L. f The upper end of each die has a semieircular cutti ug-edge, Z, and an upwardly-projecting lip, Z', on one side of the cutting-surface. Onthe other side of the cutting surface, opposite lip Z', is a spring, Z2, the same being secured to the die and hauing an incline, Z, as shown in FigsA and 5. Tapcring holes i extend through plate Iaud the contiguous part of frame A, v

and extend, respectively, through dies i', leaving a cutting-edge on these dies on the face thereof ncxtto line of dies L, the latter in their rceiprocations passing close to if not absolutely colliding with dies i', the co-operation of these two sets of -dies, forming shearing cuts that sever the wires into lengths ,for rivets. As the dies L on their upstroke come up under and against the wires protruding from dies i', the springs Z are pressed back a trie by means ol' inclincs Z", and the recoil of the springs as the wires engage the cuttingedges presses downward and toward lips Z', and hold the rivets after they are severed lirmly in place on dies L during -the balance of the upstrokc of the lat-ter, and at the cud .of the-upstroke these rivets are in position to enter the holes of the section and section-bar, the-latter lying ilatwise against dies I1'. The

latter dies are merely for steadying the section-bar, and have tapering holes '172, through which the rvetingplungcrs enter from this side.

' The riveting mechanism is as follows: Crossheads M reciprocatein ways a of frame A. As these two crossheads and the connected parts are alike, a description of one will answer for both, it being understood that the crossheads are set in line and operate from opposite sides ofthe machine. At the .inner end of each cross-headM are set two rivetingplungers, Y

N, the opposing plungers of the respective cross-heads being in line and set at suitable distance apart to engage the two rivets 'that' secure a section. Cross-head M is connected by lilik M' with the upper end lof lever O.'

'lhel link is made in two pieces that are screwed into the respective ends of sleeve M2 with right and left handed threads, by means of which-the length of the link can be accurately adjustedby turning the sleeve. Jam-A nuts m are located on either side of the sleeve -for securing the latter and holding the joint rigid. LeverO, near the center thereof, has

trunions o, that are journaled in boxes a',V

connected with frame A, and the lower end of the lever is connected by eccentric-rod`P vand eccentric-strap p with eccentric Il aforesaid. The two eccentrics are set to throw simultaneously in opposite directions,by means of which and of the connecting mechanism just described the plungers N ofthe respective eross'heads M are caused simultaneously to approach or recede from each other. Just as the two rivets for securing a section are brought up by dies L in front of the holes of the section the opposing plungers N approach each other.. The two plungcrs on the right hand l(sce Figs. l and 2) Erst strike the rivets, driving thenrinto the holes of a section in scction-bar, and just as this occurs the plungers from the left hand engage theI rivets and both oi' the rivets are simultaneously upset.` Meanwhile, as thc rivets are entering the'holes, the downstrok-e of cross-head J carries dies' L down out ofthe way of the plungers. As the plunger-s recede, the next section is moved forward,earrying with it the section-bar,as aforesaid. The next upstroke of die L brings two more rivetsinpositiomand so on unt-il the cntter-bar is eon'ipletvd, the diiterent parts of the machine operating,r a'ut m1aticallyA and bein timed to eo operate to produce the general result.

\Vhat I Claim is 'L The combhmtion, with erossheads sct in line and meehanism,snl istantialIy indicated, for reciprocating the erossheads simultaneously toward and from each other-,ot rivetingplungers connected with the respective crossheads and arranged to form opposing pairs for upsetting,lr the endsl of cachot' the rivets at one loperation, substantially as sei. forth.

2. '.lhccombination,withcross-headshaving riveting-plungers attachclsnbstmilially asindicated, of apnslrbar operntin;r at rightangles tothe movement ofthe riveti|1gpl|nigers, and mechanism, substantially as indicated, for rc ciproeating theilinsh-bar to feed successive seetions and move the section-bar between the plungers in position for riveting,substantially as set forth. Y

3. The combination, with cross-heads and riveting-plungcrs attached, a push-bar, and mechanism for operating the same, substantially as indicated, of a holder for the sections, said holder having a movable head adapted to move the sections toward the seetion-bar,sub stantially as set forth.

4. The combination, with feed-roll having groove for feeding two wiresand reciprocating cross-head, the ,latter having dies attached for severing the wires as they are fed by the rollers, oi' riveting-plunger for upsetting the rivets formed by the sevcring-dies, substantiall y as set fort-h. i

5. The combination, with feed-rollcrand rceiproeating cutting-dies, substantially as indi-i cated, of projecting lip and opposing springs connected with each die adjacent the cuttingsurface thereof, and arranged, substantially as indicated, for holding the rivets in place on the cutting dies', substantially asset forth.

6. 'lheeomhinati-on of riveting.,r device, meehanism for Ifeeding the sections and section-bar, feed-rolls for feeding the wires, and cutting dies for cutting the wire into rivets and earrying the rivets into position for riveting, the parts being timed to cooperate with each other, substantially as set fnv-.tb

In testimony whereof) sign this spzeimtlon, in the preseneect' two wlrnvsergthis 10th day of (lctol'ier. '1987.

.TOIINH FROST.

Witnesses:

ALBERT E. L YNcn, Cms. H. Donna.

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