US928220A - Pipe-coiling machine. - Google Patents

Description

L. C. SCHNEIDER.

PIPE GOILING MACHINE. APPLIUATION FILED P3317, 1909.

Patented July 13, 1909.

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LEOPOLD O. b'OHNElDERwOF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE Plllliib DELPHIA PIPPl BENDlNG COMPANY, A CORPORATION 0F NEW JERSEY.

PIPE-comme MACHNE.

Specification o' Letters Patent.

Patented .Tiny 1e, ieee.

Original application filed August 21, 1908, Serial No. 449,626. Divided and this application filed February 17, 19022.

Fig. 3 is a view, partly in elevation, partlyv in4 section, showing means for adjustingD holding the auxiliary back-ceiling or 28 may be adjusted to different angular posiand l tions with respect to the bar ack- 1 Upon the bar is mounted the relier 3.2,

Serial No. 478,443.

To all whom 'it may concern: ed thereon a vertical spindle 2 driven by an B e 1t known that LLEOPOLDOSCHNEIDER, electric motor, belt, or other suitable source .5:3 a citizen of the United States, residing at of power. Secured to the spindle 2 and Philadelphia, county of Philadelphia, and driven thereby is the gear fi which meshes State of Pennsylvania, have invented cerwith and drives the gear 4 mounted upon tain new and useful Improvements in Pipethe spindle 5. Carried by the spindles '2 OoilingMacliines, of which the following is and 5 respectively are the rollers or rolls tu f1 SPGGENDMHML and 7, having concave periplieries to receive My invention relates to improvements in the pipe, rod, or other stock, as well undera machine for ceiling oi' bending pipes, or stood in the art. The gear L and roller i", other articles, composed of metal, such as mounted upon the spindle 5, are adjusial'ile wrought iron, or other materials, and par toward and away from the gear 3 and roller ce ticularly to a machine for ceiling or bending 6 by the screw 8 operating in the brat-kei il. the material while cold. and square headed at 10 to receive a wrench Pipes, rods, and other forms of wrought or the like. To one side of the iindle .5 on iron, or other material, are non-uniform, as the spindle 11 is mounted a rolfer 12, also bought in the open market, in hardness, having a'concave rim or periphery and slid- 7o thickness, or in other regards, and4 in coilable inwardly and outwardly under the coning oi bending them in the manner common trol of the adjusting screw 13, operating in heretofore in the art, uniformity of ceiling bracket 14 and having the squared head 1:3; or bending,` is not attained because of this and on the other side of the rollers Gand Tis lack of uniformity in the stock material. a roller 16, also having` a concave riin or pe- It is the object of my invention to proriphery and mounted upon the spindle 1T duce coils or bends which are uniform in and adjustable inwardly anti outwardly by curvature or shape, and irrespective of this the screw itl, operatingl in bracket 19 am lack of uniformity in the material to be bent square headed at 20. The brackets 2l and or coiled. 22, bolted t-o the base plate 1, are alined with so My invention resides, therefore, in a ma each other and support and secure the bar 2h chine for ceiling or bending rods or pipes, which may bev of square or other suitable or other fornis of material and comprises cross section. Movable along` the bar 2; means for over-ceiling or oval-bending the is the clamp 24 which may be clamped scpipes or rods to a curvature sharper than the curely to the bar 23 at any dcsircdposition. en 'finish curvature, and then coiling or bendingr As seen in Fig. 3the clamp 24 embraces the stock back to the desired sha e or curva# the bar and may be clamped snugly thereture. By this means, perfect y uniform to by tightening,l the bolt25 rl he top ol the coils or bendsrcan` be produced, irrespective clamp 2a is recessed to receive the cylindifwal of the irregularities and non-uniforn'iity of pin or pivot- 26 secured toor integral withthe :io the material of the stock operated upon. clamp 27 which embraces the bar 2S, which .My invention resides also in the features may be snugly clamped thereto by the bolts hereinafter described and claimed. 29. The pivot 26 has an angular groove iff'- For an illustration of onev of the forms my in which may engage the end oi the screu'h invention may take, reference is to be had threaded in tlielbracket-2el, thus previ-zuinig; .i5 to the accompanying drawing, in which: the clamp 27 from biting. outI ol er :may Figure 1 is a plan view of a ceiling or bcndfrom the clamp 24. By this pivotal conne ing machine involving my invention. Fig. tion between the clamps, each may be :u 2 is a vertical elevation, partly in section, justed to, different positions with respect tu of the back-ceiling or hack-bending means. their respective oars 2B and 255, and the bei' ico having): a coi'ieave rim or peripiiery, and mounted upon the spindle or pm 33 carried 10:3

Beyond the roller 2%??- is a bending means.

Referring to the drawing: A base plate 1, j of iron or other suitable material, has mount- I by the rod 2.5.

-greater or iinish diameter of three feet.

other words, at'the roller 16, the stock is oversimilar roller 34 mounted upon a spindle or pin 35 carried by the block 36, which is slidable inwardlfy and outwardly on' the bar 28 by means o a screw 37 provided with the hand crank 38, as seen in detail in Fig.y 2.

In the base plate 1 are provided a plurality of holes 39, in which may be placed a pin or pins to prevent the rod 28 from rotating about the pivot 26 during the operation of the machine.

The operation is as follows: The pipe, rod, or other stock 40 is fed in from the left, as viewed in Fig. 1, between the rollers 6 and 7, and lies against the roller 12.

spindle 2, the stock 40 is, fed or drawn toward the right and engages in theconcave periphery of the roller 16. This roller is set in, by screw 18, a sufficient distance to cause the pipe to coil or bend, as well understood in the art. By the action thus far described, the stock 40 is over-coiled or over-bent, tending to form a coil or bendv of sharper curvature or less radius than the finish coil -diameter of less than three feet. The pi e or stock 40 is, however, guided between t e rollers 32 and 34 which are set out far enough V to determine a coil o'r bend of three feet diameter, the operation being a local backbending or back-coiling after leaving the roller 16 from the lesser diameter to tie n coiled or over-bent, and at the roller 32 the stock is back-coiled or back-bent to the finish diameter, the coiling or bending and backcoiling or back-bending occurring at and bev tween roller 16 and roller 32. By this overcoiling or over-bending and bac coiling or back-bending, the coil or bend will take the desired nish diameter and the diameter of lthe finish coil will be perfectly uniform,

whereas, by merely setting the roller 16 in to a point to roduce a three-foot coil or bend, the finis coil lor bend will not be uniformly of three feet diameter, but will vary considerably from oint to point, and the result is not a pe ectly uniform and smoothl coiled or bent pipe or stock.

It wl be noted that by the apparatus above described, the over-coiling or overbending and the back-ceiling or back-bending is accomplished within less than a complete turn or coil or convolution, and, indeed, Within a small fraction of a complete bend or coil. Thus, the over-bending or over-coiling is accomplished at roller 16 and immediately thereafter, and during the same continuous l stock 40 as it passes between the rolls 6 and Due to fric- Y r tion and the power delivered through the 7 ma be made the same as or diHerent from the istance between the center of the pivot 26 and the axis of the stock 40 as it passes between the rolls 32 and 34.

I have found that by the herein 'described machine, the capacity for coiling stock is very greatly increased, and that an uniform coil or bend is produced, and is made much 1more rapidly and at far lesscost than heretoore.

While I have shown two rollers 32 and 34 for the back-coiling or back-bending operation, it is to be understood that the roller 34 may be omitted, though its presence is preferable.

Upon the base plate 1 there may be provided a single roll or idler 43, or the double roll idler 44 having the rolls 45 and 46, the

latter adjustable by screw 37 and hand crank 38. It 1s to be understood also that the idlers, single or double roll, may be multiplied in number. s

' While the advantages of my apparatus are available for the coiling or bending stock in heated condition, they are partlcularly available-to the cold coiling or bending of pipes, rods, or other stock.

This application is a division of my application Serial No.v 449,626 filed August 21, 1908.

What I claim is:

1. In a machine of the character described, means for continuously feeding pipe, means for continuously locally coiling or bending the pipe to tend'to form a coil of less thanA finish diameter, and means for continuously locally back-coiling or back-bendin said pipe to form an uniform coil of finish diameter.

2. In a machine of the character described, means for continuously feeding pipe or other stock, -a roll for o erating continuously upon said pipe or'stocii) to over-coil or over-bend the same, and a roll operating subsequently and continuously upon said plpe or stock to ,back-coil or back-bend the same to form a coil of uniform diameter.

3. In a machine of the character described, the combination with means for continuously feedn pipe or stock, of means for continuously ocally over-coiling or over-bending said pipe or stock, means for continuously back-ceiling or back-bending the pipe or stock to form an uniform coil of finish diameter, and an adjustable mounting for s aid back-coiling or back-bending means.

" tinuously operating 1n op means-jor continuously fee inpiipe or stoel;

, or bending means encountered bysaid stoc [for continuously locally coilinor said pipe orstock to back-coil i means for continuouslyr 'feeding pipe, means l back-coil or `back-bendI said pipe or other st o'ck to form a-coil'of u iformdiameter.'

9. Ina machineof the haracter described, means for feeding pipe, cally upon said pipe' in a relatively sharply 4. In a machine of the-character described, a plurality of bending or ceiling means conosite directions,

past said plurality of means, t rst coilin o erating to locally over-coil or over-bend t e same, and the means subsequently en* ga yed by said pipe or stock operating-to lo# bending said pipe'to form an uniform coil of cal y baclccoil or back-bend the same to finish diameter. y l form a coil orl bend of uniform nish di- 10. In a machine of the character deameter. scribed, meansjfor feeding pipe, means o 5.- in a machine of the character described, erating locally upon said pipe in a relative y sharply defined region 'for ceiling or-bending` for continuously locally ceiling or bending the pipe to tend to form a Acoil of less than the pipe to tend to form a coil ofless than iin-'l finis diameter, and means .operating locally ish diameter, and means continuously operating u on said pipe before a complete turn region for or convo ution is formed for back-ceiling or back-bending the same to form an uniform coil offinish diameter.

. 6. in a machine oi the character described, means for continuously feeding pipe, means or bendinglthe pipe to tend to form a coil` of less than iinis diameter, and means located a short distance from said first mentioned means. for continuously locally back-coilin or backbending said pipe to form an uni crm coil of l finish diameter. 7. ln a machine oi' the character described, l means for feeding pipe or stock, a roll fer operating upon said pipe or stock to over-'ccil or over-bend the same, and a roll located a short distance from said first mentioned roll and operating subsequently thereto upon or back-bend the same toform a coil of uniform diameter. l

8. ln a machine of the character described,

tol tend to form a coil of less than finish diack-coiling or'back-bending said pipe to :form an uniform coil of finish diameter. v 'l 11. ln a machine of the character described, a plurality of rolls spaced apart, means for feeding pipe over said rolls in succession, a roll engaging said pipe between said separated rolls, the position of' said last mentioned roll, whereby the pi eis first overcoiled or overbent and therea 'ter back-coiled crback-bent to finish diameter of the coil.

scribed, means, of separated' rolls over. which said pipe is ed in succession, a roll engaging said ipe between Said separated rolls, and means or setting said last mentioned roll, whereby the pi first tendsto forni a coil of lessthan desirea nish diameter and to thereafter assume uniform finish diameter.

In testimony whereof I have hereunto iixed my signature in l subscribing meansferfeeding pipe or other stock, `a roll f or operating 4upon said pipe or stock to over- Witnesses.

coil or over-bend the same, and a roll o LEOPOLD C. SCHNEIDER. i erating upon. said pipe or stoclr. subsequent y Witnesses te said first mentioned roll before the com le- G. M. HARDEN,

tion of a turn or convolution oi the .coi te T. FRANK PHINNY.'

defined region for culling or bending 'the'plpe andmeans for. adjusting .12. In a machine of the character de-I4 the combination with pipe feeding the presencel oi' the-tuml means operating .lo-

amet'er, and means for baclscoiling or back` upon said ipe in a relatively sharply defined

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