US22659A - Improved machine for bending u m b rella - Google Patents

Description

PATENT OFFICE.

FE tDlNAND Llillill, OF HOBOKEN, NEWY JERSEY.

IMPROVED MACHINE FOR BENDING UMBRELLA-RIBS.

Specifirnlion forming part of Leiters Intent No. 22,659, datt-d January 15,1559.

To a-Z wit-071i, t may concern:

Be it known that I, FERDINAND Lin-uc, of Hoboken, in the county of Hudson and State of New Jersey, have invented, made, and applied to use certain new and useful Improvements in Machinery for Bending Umbrella- Ribs and Similar Articles; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the saine, reference being had to the annexed drawings, making part of this speciieation', wherein- Figure l is a plan of my machine complete. Fig. 2 is a side elevation. Fig. 3 is an end View. Fig. 4 is a vertical longitudinal section showing the apparatus for bending the ribs; and Fig. 5 is a ypartial section showing the feeding-pinchers and parts opposite to those in Fig. 4.

Similar marks of reference denote the same parts.

,serve like holes in the ribs for thejoints and for receiving the stretchers, it being distinctly understood that my invention does not relate to the rib or spoke itself when bent, the saine being patented by Henry Kurth, of Brooklyn, New York, April 29, 1858.

The machinery I make use of for accomplishing the above-mentioned purpose of bending or eoiling wire into loops for forming nmbrella-ribs may be divided as follows: first, a reciprocating jaw or pincher which feeds or draws the wire,after it has been straightened, into the maehine,and then opens, and,leaving the wire to be operated on, turns down out of the way and is drawn back, then turned up, and again seizes the wire; second, a shear having aY compound motion to come up and out oi the wire, and then move back out of the way; third, clamps `holding the wire near the middle and toward one end while the loops or eyes are being formed; fourth, mandrels and turning-stubs that bend or coil up the wire to form 'a loop or eye near one end and in the middle part of the rib; fifth, a mandrel and turningstub which takes the end of the wire after it has been bent at the middle to form the loop land turns thereon a loop or eye for the joint,

bywhich the end of the rib is attached. The parts then return to their former position and Y. the ribY drops.

The operation of bending the spokes or ribs being performed in the above order by my maehine,the description will correspond thereto in its plan, although but one machine is used and that for producing one article.

In the drawings, a is a shaft sustained in vboxes b b, and rotated by competent power through the crank c and handle or crank-pin G, or otherwise.

A is the side frame carrying the mandrels, and Bis the other side frame, carrying the turning-'stubs and parts thereof.

First. On the side frame, A, isaV-slide, g', carrying the sliding block g, on whicha short stud, 2, is attached, that carries the pinchers e e', and on this stud 2 the pinchers can turn down against the stop 7, in the position show n in Fig. 2 by dotted lines, or be turned up against the stud 6, as seenin Fig. 5. The pinehersecare attached together by the screw 5, and formed with horizon taljaws partially to the side, which take the wire, as shown by red lines in Figs. l and 5. The side e of the pinchers is longer than the side e', an d extends dow n ward through a guide-slot, 4, and has a pin or stud, 8, projecling therefrom toward the outside of the maehine,wherc it receives one end ofthe link f, the other end of which is provided with a slot, l, that receivesthe crank-pin c. 9 is a spring tending to open thejaws, the saine be- -ing attached to the parte and acting on a pin,

8, on the parte', said pin 8 also preventing the jaws opening too far. d isa guide through which the wire to forni the rib orspoke isled after it has been straightened. The operation of these pinchers is as follows: The crank-pin c' being revolved in the direction of the arrows, the link f draws the slide g along from the position in Fig. 2 to that of Fig. 5, the pinchers being outof the way ofthe other parts by the pull on the stud 3 acting to turn the pinchers down against the stop 7. So soon as the crank c passes its center, the slide g has arrived at its extreme forward movement. As the link f is lifted, the pinchers e e are turned up vertically above the shaft 2, as seeniu Fig. 5. The spring 9 keeping the jaws open, they pass over the wire as the same projects from the guide d, and as soon as the pin c' takes against the end of the slot l the pressure irst closes the jaws, grasping the Wire, and then the. further movementcauses the link f to face the slide g along to the other end of the machine, drawing the necessary length of wire through the guide d. Other parts, hereinafter described, then comcup and holdthc wire, at which moment the crank c passes its eenter, the pressure is released, the spring9opens the jaws, droppingthc wire, the spring f', taking the stud 3, throws that forward, inclining the pinchcrs, as in Fig. 2, and then the pin c', taking the end ofthe slot 1, draws the slideg back as before. The spring f might be dispensed with; but it makes the pinchers throw backward and downward more quickly, instead of there being a pause while the pin o travels the length of the slot 1. A similar spring (to f) might be used at the other end to throw up the pinchers; but the same is not al ways required.

Second. i is a shear attached by a screw, 11, tothe bedpiece h. hf is the other half ofthe shear, jointed to by the screw 12 and carrying the cutter yi. The end of the shear h projects as a lever toward the shaft a, where a cam, h, acts on the same and gives a compound motion thereto as follows: The part 10 of the cam h, acting on the shear-lever h', moves said shear out of the way of the wire and pinchers e e', (see Figs. l and 5,) said shear turning horizontally on the screw 11. When the wire has been drawn through, as aforesaid, the end of h' being no longer acted on by cam 10, the spring i, which serves to open the shears as well as to draw the end of li' against the cam, on account of its diagonal position, moves the shears laterally, so that the jaws pass above and below the wire, and the cani h., now acting, throws down the cutter i" and separates the wire, aiter which the cani 10, again operating, moves the shears laterally out of the way.

Third. The wire is laid along by the pinchers e e above the ledges 13 14, Fig. 5, the turning-stubs and mandrels p p' are brought up, as hereinafter shown, which prevent the wire escaping. The clamping-levers k la are then brought down to hold said wire firmly by the following means,while the turning operations, Fig. 4, are performed. The levers k k' are on fulcrulns in the blocks k" k. Their outer ends are connected by links 15 15 to bent levers 16 16, the ends of which are connected to the sliding bar L in guides Z. Z3 is a spring acting to slide said bar l lengthwise and force up the outer end of the levers It k' and cause the inner ones to clamp the wire. Z is a cam on the main shaft, which, acting against the end of the barl and being properly shaped and timed, raises the inner ends ofthe levers 7c k', while the finished spoke drops out and the wire is laid by the pinchers on the ledges 13 and 14 and beneath the ends of said levers k k', as aforesaid.

Fourth. To coil or bend up the wire at the middle and one end to form the eyes or loops, I cause the motion of the bar Z, aforesaid, to project and retract the inandrels z z, that are fixed to the slides mm', and determine the size of the loop or eye formed in the wire rib. 18 18 are levers on the fulerums 19 19, attached at the upper ends to said slides m m in the blocks k and k3. The lower ends of these levers 18 18 set in diagonal jaws or slots 20 20 on the bar l, so that as the bar l is moved by the spring l3 to clamp the wire by the levers k It', the mandrels z z are projected out of the blocks 7a2 k, so as to be ready to have the wire bent around the same by the means next described. n is a cani on the shaft a, which acts on the slide-bar u', from which links 22 22 connect to cranks 23 23 on the lower ends of vertical shafts u* n. 24 24 are arms on the upper ends of the shafts In, connected by links 25 25 to the stocks o o, that move in V-slides o o', and carry the turning shafts p p and stubs ma', and 2l is a spring acting to slide the bar n toward the cani n3. The operation of this partis, that the cam n, being properly shaped and timed, moves from and releases the slide a immedi ately aft-er the pinchers e e have passed along,

carrying the wire, as aforesaid, so that the spring 21, acting through said bar n, cranks 23 and 24, links 22 and 25, and the shafts n, projects the stocks o, so that the ends of the shafts p p' come up and hold said wire, the turningstubs :c being above the wire, as seen in Fig. 4, and the ends of the shafts p p being provided with holes into which the mandrels z z pass when projected, as before set forth. The shafts p p' are revolved while pressed against the wire by means of the gears r and 7', there being three gears r and two gears 1', so that one movement of the rack r will turn said shafts 1J p in opposite directions, which causes the stubs x :c to turn or twist the wire, around in the manner represented by the red lines and arrows, Fig. 4, the inner faces of the blocks k2 and k being formed as an incline from the ledges 13 and 14, so that the wire, when turned into an eye, is coiled or laid double at the back ofthe eye, the spring 21 allowing the shafts p p to move slightly back as the turning progresses. It will be seen that the shaft p acts near the end to forni the eye to which the edge of the umbrella-cover is attached, and that the shaft p and its stub sweeps the wire around, as shown in Fig. 4, to form the eye near the middle, and causes the moving end of the wire to pass down between the jaws 32, beneath an offset and over a mandrel on which the wire has an eye bent up at the end thereof, as heretofore described. The rack i' receives its motion from a crank, q, at the end ofthe shaft a, with its pin acting in a slot, 27, of the eonnectingrod q', that is attached at 26 to the said slide r, the object Lof the slot 27 being to allow a pause after the turning operation, before described, for the end to have an eye turned therein, and for the cam n to force along the slide-bar n and slide the stocks o o and shafts p p away from the finished rib, when the crank-pin, taking the other end of the slot 27, slides the rack r to its former position, turning back the shafts p jp', ready to be again projected and act upon another wire, as before spccitied.

Fifth. The rack u, similar to the rack r, also moves in a V-recess in the side B of the bed,

and acts to rotate the shaft p2 and its stub 1r' through the gears n', and said stub fr bends the end ofthe wire into an eye, (see retl lines, Fig. 4,) in the saine manner as before detailed relative to the shaflsp p'. llhc endwise inotion is given to the shalt pi and stock s'in the slides s" by 111cans o1' thelink 31, arin 30, shaft s, crank 2t), and link 28, to the sliding bar n and spring 41, the eain n2 being so formed and positioned that the stock s' and turning shalt p come up and take the end of thc wire as it sweeps around and arrives at the jaws 32, (see Fig. 4,) and simultaneously the inandrel e is projected by a linlt, s, from the arn1 3() to a lever, 34, taking the slide 1112111 the block k, at the c1111 of which slide mf is the said inandrel Ifroni the pin ofthe crank q is a second crank, t, set at such an angle to the former that the pin if, taking the end o1' the slot 35 in the connecting-rod ti, gives the sliding 1110- tion to thc raclc n, and rotates the shaft p2 and its stub as soon as the said shaft p is pressed against the wire, as aforesaid, and when the eye has been bent on the end,as before described, the ealn nL forces the shaft p" back, drawing out the inandrel a', and the spoke or rib falls away completed, and the pin t', taking the other end ofthe slot 8.3, turns the shaft p back to its foriner position. It will 11e evident that by the arrangement of the cranks q and t, in connection with the slots 27 and 35 in the eonnecting-rods q and ti, the operations o1' turning the shafts p and p2 are performed successively, so as to act on the wire first to forni the middle eye and then the end eye or loop.

Having thus described the construction and operation ofthe successive parts, I will briet-` ly recapitulate the various operations: The pinchers seize and draw through the wire, the shafts p p' coine up, the levers h It" clamp the wire, the pinchers open, turn down, and are drawn back out of the way, the center and end eyes are turned by the stubs :r c around the lnandrcls z c as they are projected, the shaft p2 comes up, the mandrel z is projected, and the end eye or loop is turned, the shafts p, p', and p2 move back successively, and the inandrels s .fr c' are withdrawn and the finished rib or spoke drops away complete. The pinchers e c' by this ti 111e have been turned up vertically and again seize the wire, the otherparts have resunicd their former positions, and the motions are performed as before.

I do not claiin a mandrel around which the wire is bent by a revolving stub, as such niandrei has been aliixed to the shaft carrying the revolving` stub. In that case, however, diffe culty existed in removing the spoke or rib, when bent, from off the said mandrel; but by my machine, the mandrels and bending-stubs withdrawing from each other and the 1nandrets pulling ont of the holes or eyes, this difficulty is avoided.

That I claim as my invention, and desire to secure by Letters Patent, is-

'1. A reciprocating pincher taking the wire `fro111 a fixed and thawing the saine through the machine, dropping froni said wire, and then returning belowto its previous position, so as to 1111 out of the way of the bending or ceiling of the wire into eyes or loops, as set forth.

2. Attaching said pinchers on a traveling` carriage by one side thereof, while the power for sliding said pinchers lengthwise of the machine is applied to the other jaw, whereby the clamping and releasing ofthe wire are e1'- fccted by the act o1' ineving said pinchers, as set forth.

3. Attaching one end of said pinchers on a stud or shaft, in combination with the stops (i and 7, spring E), and slotted connecting -link j', whereby the sliding, clamping, depressing, and elevating motions are given the pinchcrs bythe reciprocations ofsaid rod j', as set forth.

et. The shear 1T', receiving the compound inotion set forth fro111 the canis l1 and 10, in the 111anne1` and for the purpose specified.

5. The clamping-levers k lr', in combination with the ledges 13 11 and shafts p p', that press against and hold the Wire while the loops are being formed, as set forth.

6. The niandrels, in combination with the turning shafts and stubs, when the said inandrels are projected froni the blocks or their equivalents, for the wire to bc bent around the same to forn1 the loops or eyes in the spokes or ribs, and withdrawn from said eyes when the saine have been bent, substantially as set forth.

7. The arrangement of the sliding barl and the connections therefrom to the clampinglevers k 711 and slides n1 n1',wl1ercby thc clamps and inandreis are simultaneously actuated, as set forth.

8. The sliding stocks o 0, carrying the shafts p and turning stubs for allowing the withdrawal of said stubs out ofthe way of the traveling pinchers, substantially as set forth, and, in combination therewith, the bar N and connections thcrefroni to said stocks o o, for communicating end wise motion to said stocks, for the purpose and as specified.

9. The sliding n'iandrel s and turning shaft p2, connected as set forth, in combination with the jaws 82, or their equivalents, for turning the eye or loop in the end of the spoke or rib, as described and shown.

10. The arrangement of the cranks q and z and slotted connecting-rods q t, for commu nicating niotion successively to the slides r and `u' and froni the same to the tnrning-stubs or loop-farmers, as set forth.

In witness whereof I have hereunto set my signature this 17th day of December, 1858.

LEMUEL XV. SERRELL, THoMAs G. HAROLD.

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