US1985501A - High speed hot coiler - Google Patents

Description

."5 Sheets-Sheet 1 E B. HUDSON HIGH SPEED HOT COILER` Filed Julyl, 1931 S mm MM m V n m A Y n Nimm M j K MHH *VE Q wm w@ ec. 25, i934. E, IB, HUDSQN HIGH SPEED HOT COILER Filed July l, 1931 3 Sheets-Sheet 2 A T10/maya Dec. 25, 1934.

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Patented iDec. 25, 1934 UNITED STATES Pa'rlazN'r OFFICE HIGH SPEED no'r colLEn Edwin n. ncdscn, Middlctcwn, omc, signor tc The American Rolling Mill Company, Middletown, Ohio',a corporation of Ohio Application July 1, 1931, serial Nc. 548,169

17 claims. (ci. 24a- 78) As exemplary of the field to which my invention the strip to leave the guides or to fail to form the relates, it may be pointed out that in accordance initial turns in a satisfactory manner not only with modern continuous methods of producing results in a spoiling of the material, but is dangermeet iron and steeLIslabs or billets are hot rolled, ous to life and to the machine.

5 usually in a train of tandem four-high hot mills One object of my invention, therefore, is to 5 to form a strip sheet, which is a piece of metal of secure the advantages of high speed discharge sheet width and of indefinite length, depending, without the disadvantages inherent in the radial of course, upon the character of the starting piece discharge type of machine, and to get a coiling and the amount of reduction made therein. Atspeed vcomparable yto and exceeding thecoiling l the end of the hot mill train, it is the usual pracspeedsheretofore attained in the axial discharge ll0 tice to coil the strip sheet. f type of machine. f An object of my invention, con- My invention relates and it is its objectto pr sequently, is'the provision of means for guiding duce a coiling machine of a simple and practical the strip from the `,bending rolls to coil-forming design, but whichis capable of running at a high position and'to maintain the coil in coiling puil surface speed for coiling hot strip metal. It is an tion during a high speed operation. It is thus an 15 object of my invention to provide a-machine which object of my invention to provide improved guidmay beoperated continuously and with entirev ing means to this end. Further objects of my insafety'and satisfaction at as urface speed of 1200 vention have to do with features of control, and it. per-minute, more or less, las may be required in one aspect of my invention with an improved in .theparticular use, and which consequently can means for bending the strip. By my invention I 20 receivehot strip material from a continuous hot have provided a machine capable of operating at mill train of the standard type, such as two-high such a high speed, and so simple of operation that orvfour-high mills in tandem. It will be underonly one machine is required 'to take the' output stood, of course, that the particular use mentioned ofthe modern train of tandem mills. It will be 25. is exemplary only of situations to which my lnunderstood, of course, that the speed set forth vention is particularly adaptable. Other objects hereinabove is illustrative of the attainment of thereof will be developed inthe course of this dismy machine in meeting the requirements of a closure, or will be apparent .to one skilled in the. modern mill train and is not hunting. art upon reading these specifications. The objects of my invention are attained by There are two general types ofcoilers incurthat certain construction .and arrangement of 30 rent use, the axial discharge type and the radial parts of which I shall now give a full, clear and discharge type. The axial discharge machine opexact description, reference being had to the eratesat a fairly high coiling speed, but the time drawings, wherein: required to remove the coils from the machine Figure lis a longitudinal sectional view of my Vmakes the use of more than one machine necesmachine taken on the center line of the hot mill 35 sary to take the output of the modern mill. The table along which the product to be coiled is fed; radial discharge machine has provision for the Fig. 2 shows an arrangement of pyramid bendquick discharge of the formed coils, but such malng rolls; d

chines have hitherto had to be operated at low Fig. 3 shows an arrangement of a pinch type 40 coiling speeds. This has been due in part to the y of bending roll equipment having an adjustable 4o failure of any provision for guiding the strip into feature; the ceiling position from the bending rolls. In Fig. 4 is an elevation of my machine upon the the use of such machines, it is necessary, 'as will drive side; and be understood, to form the rst turn of the coil Fig, 5 is en end elevation of my machine with from the head end of the strip, and then to precertain parts shown in section, the view being 45 vent the partially formed coil from flying apart baken from the entering side. due to centrifugal force until the weight and mass Broaeuy, in the practice of my invention I proof the coil become Sumcient t0 prevent thisvide a type cfccucr in which the strip is :ed by Hence the radial discharge type has likewise been pinch rens over a bending m11 to give if, the proper unsuited fOr high Speed ODSIBMODS- initial curvature. I also provide means for ad- 50 It will be understood that the Coiling 0f 110i justing the relative positions of these rolls, while metal is at best an operation which calls for very 'at the seme time providing guiding means which careful control; and when to other factors the ere not brought out of guiding relationship by requirement of high speed is added, the dimculthe adjustment aforesaid. The mechanism 5 ties are enormously mcreased, Anytendency for. whereby this is accomplished will be described 55 at length hereinafter, and I believe it to be broadly novel. I also provide rolls or other means for sustaining the coil as it is being formed, together with suitable guiding means. A portion, at least, of the guiding means is movable to take care of the growth of the coil as it is being formed, and also to release the coil after the complete formation thereof. Finally, I provide means for ejecting the coil from the coilng' device irr a radial direction. It is both a characteristic and an advantage oi' the particular embodiment of my machine illustrated in the accompanying drawings, that the coil, after formation, is ejected from the machine back along the path of travel of the strip from which the coil is formed, although if desired, a modification might be made in my structure permitting the withdrawal of the-coil in other directions. It will be understood, however, that if a coil can be ejected, automatically if desired, so as to be removed by gravity, there is no occasion to slow up the operation of the device while waiting for cranes or other devices for removing and transporting the coils.

Upon a base 1, I mount side housings 2 which may betied across laterally with castings 3. The castings may bemounted directly upon the housings 2 or upon the pinch roll guide housings 4 and 5, as shown. These parts represent the main structure carrying the bending rolls, guiding means, and other auxiliary equipment. By reason of their more positive operationA and better adjustabilit the bending rolls which I prefen to use in my machine are those which may be called the "pinch type", although bending rolls of any other suitable type may be used, such as those shown in Figs. 2 and 3. It will be understood that the guiding means which I have described and claimed herein are an important factor in the high Lio speed of my machine, and that although I have disclosed a preferred type of bending roll structure and assembly, my guiding means may be applied to other bending means, and high speeds obtained; In the preferred type of bending means,l

a lower lpinch roll 6 is mounted so as to bein contact with an upper pinch roll '7, and a bending roll 8 ismounted behind the pinch rolls and bears auch a relation to the path of travel of a sheet or strip fed to the pinch rolls as to produce therein the desired curvature. Consequently, it is necessary for the relationship of pinch rolls 6 and 7 to remain constant while the roll 8 is adinstable. Before describing the arrangement and operation of my structure, a specific improvement which I have made may be better defined by pointing out that which has hitherto been employed in coilng machines. In Figure 2, I have shown an arrangement of bending rolls known as the pyramid type, together with a set of pinch rolls. The pinch rolls are indicated at 21 and 22, and the pyramid rolls at 18, 19, and 20. This arrangement of bending mechanisms is in use at the present time; but it presents a great hazard in coilng steel strip if the speeds are increased substantially above 300 ft. per minute. This is due to the downward path indicated at A between the several pyramid rolls. Should the strip fail to enter the bending group, the pinch rolls 21 and 22 will continue to feed the strip forward, causing a cobble between the two groups. Again, if the strip enters the bending group, but instead of passing between rolls 19 and 20 passes between rolls 18 and 1.9, difliculty and danger will also be experienced.

There is less likelihood of trouble in a. structure in which pinch rolls feed the strip over a slightly offset bending roll. Such an arrangement-is indicated in Figure 3, where pinch rolls 6 and 7 feed the strip against and over a bending roll 8'. Whereas the arrangement shown in Figure 2 provides little or no adjustability for varying curvatures, the roll 8' of Figure 3 may be mounted so as to be slidable in the 4ways 17 so that-its position with respect to the -pinch rolls may be changed by appropriate means. However, it is necessary to insure that the strip, after passing through the pinch rolls, goes over the bending roll 8 and not between the bending roll 8' and the pinch roll 6', which would be disastrous. Consequently, it is necessary to provide guide means 15' between the lower pinch and the bending rolls; but it will b e clear from a consideration of Figure 3, that a change `of position of the bending roll 8' will produce maladjustment of the guiding means, and that this is exceedingly diilicult to overcome. In low speed machines. such bending means as are illustrated in Figures 2 and 3 can be employed with a degree of com mercial success. If anything goes Wrong, the machine may usually be stopped relatively quickly, and the slowspeedof movement'thereof is less likely to produce in the strip a tendency to follow undesirable paths of travel. -In a high speed coilng machine, however, absolutely accurate cooperation of parts Aand complete guiding means must be employed in perfect adjustment at all times, since a displacement of the strip is dikely immediately to result in breaking the machinaand perhaps in serious injury to workmen. My invention is not', however, restricted to the particular type of bending means which Ihave 'shown Other bending means, while less advantageous, might likewise be employed, and this is true to some extent even with the bending means illustrated in Figs. 2'and 3. For example,

the bending roll arrangement shown in Fig. 3 ."co u1d'be used either withor without the metal guideyor by substituting for the 'metal guide a .high-pressure water spray along the'entire length of the roll, with the water spraying upwardly between the rolls 6' and 8', thereby guiding the end of the strip safely over the roll 8. Similar practice may be employed in my preferred arrangement substituting a water spray for the'guide 15'. Since it is necessary to provide water for cooling, it

may also be used for the purpose of guiding.

Yet, particularly with metallic guides, adjustment is desirable as aforesaid, and to provide this I have devised and'employed a construction which will now be set forth. The bending roll 8 is mounted, asv shown, in bearing castings 9. There are two of these castings, one revolvably mounted upon each of the side housings in a bore or bearing member 10 of circular formation. These castings are held apart laterally, and are positioned by means. of separator bolts l1, of which there are three in the embodiment shown. The lower pinch roll 6 and the bending roll 8 are iixedly mounted upon the end castings 9. The axis of the roll 6 coincides with the center of the circular bore or bearing portion 10`, so that as the castings 9 revolve the position of the roll 6 is not changed. The end castings 9 are somewhat segmental in shape, as shown.

The roll '7 is mounted in bearing blocks 4l sliding in ways onV members .4 and 5 of the housings. These members are surmounted by blocks 45 in which hold-'down screws 42 may be mounted. These screws bear against heads 43 betweenwhich and the bearing blocks 41 coil springs 44 are po, sitioned, whereby the pressure of the pinch roll 'l against the pinch roll 6 may be regulated and maintained. The axis of the roll 'I is directly above the axisof the roll 6, and by reason of the arrangement hereinabove described, the end castings 9may be caused to revolve to a greater or less arc of motion without at all varying the relationship of the pinch rolls 6 and 7 or the par- -ticular alignment of their axes. However, rotation does vary the position of the roll 8 with respect to the direction of feed of a strip passing between the pinch rolls; but since the rolls 6 and 8 are both mounted in the castings 9, such relative movement of the roll 8 does not at all change its relationship to the roll 6, or its distance therefrom. Consequently, I may provide guiding means 15 located between and bearing against the rolls 6 and 8, if desired, and I may mount this guiding means upon my castings 9, controlling it by means of springs 16, as shown.

Any rotation of the castings 9 will not change the relationship of guiding means`15 to the rolls 6 and 8; and in this way I have secured adjustability without disturbance of the guiding means between the lower pinch roll and the bending roll.`

Above the pinch and bending rolls I have shown small rolls 12 located to receive the coil as itis formed, and to support it during the period of formation. It will be understood that as the pinch rolls 6 andv 7 rotate (roll 'I rotating in a clockwise direction, as viewed in Figure 1) a strip is fed into the machine, caused to lreceive a predetermined curvature by the roll 8, and then conducted by certain guides through a path in which it is caused to formy the initial turns of a coil, rest- .ing upon the supporting rollers 12.*

In order to insure the entry of the strip or strip sheety into'my machine, I provide side guiding members 13, one at either side of my machine, which members have a relatively wide entrance end and a relatively narrow exit end rarranged positively to feed a strip intothe pinch between f rolls 6 and 7. Bottom guide members 14, shown in Figure 5, may be provided for use withgwide strips, and may be maderemovable, if desired, when narrow strips are being coiled. The guide 15 located between rolls 6 and 8 has already been described. A member 23 to guide the strip after it leaves the bending roll 8 may be mounted upon the end castings 9 and one of the bolts 11, and may be held in position by a lug 9. A stationary and supplemental guide 24 may be provided which is an integral part of the `mechanism hereinafter to be described. This guide is primarily a supplementary means, and/is of value chiefly whenever wide curvatures are being produced. 'Ihe guiding means 23, being mounted upon the castings 9, will move with these castings, of course, so as to maintain its relationship with the bending roll 8.

To coil steel strip at high speed, regardless of the methodused in bending the strip, suitable means must be provided to lead the head end of the strip into proper coiling position, and to maintain this position until the weight of the coil grows to a value suflicient to overcome the centrifugal forces which are set up due to the rotationof the coil. The successful coiling of strip at high speed depends primarily upon proper guiding of f the strip, and the construction next hereinafter de-` scribed is an important feature of my invention.

To insure-the guiding of the head end of the 'the strip are accomplished through a Worm 48 strip to its proper position upon the carrying rolls 12, I provide guiding means 26 hinged at 27, guide means 28 hinged at 29, and guide means 30 hinged at 31. Section 26 is hinged to the frame of my device, while sections 28 and 30 are hinged respectively to section 26 and to section 28. In Figure 5, I have shown these guiding sections in solid lines in the position which they assume while a formed coil is beingr ejected from the machine. I have also shown them in dotted lines in the position they assume while the'head end of the strip is being lgiven the initial coil-forming curvature. These guiding members are arcuate in shape, and when in the position of the dotted lines in Figure 1, they are adapted to receive the curved strip from the bending roll 8 and conduct it continuously to the forward one of the supporting rolls l2. In the dotted position, the guiding means are indicated respectively at 26', 28', and 30', and itv will be noticed that the end of the member 30 approaches very closely the forward supportingy roll 12. The guides 26, 28, andr 30 are moved to the various positions shown, and intermediate positions, by an air cylinder 32 having air inlets as shown at 36, whereby the piston thereof may be 'moved in either direction. The piston rod is conf nected to a linkage comprising a lever 34', one end of which is pivoted on the frame of my device, a link 33 engaging the pivot shaft 39 between guides 26 ands28, and a link 35 pivoted to a crank arm 35a affixed to the guide member 30. In its rearward position as shown, the piston of the air cylinder is effective in raising the guiding means to the position shown in solid lines, which is a position in which a completely formed coil may be ejected from ther machine. 'Ihe discharge of the coil is eected by means of an air cylinder 37, the piston of which, operating through a ram 38, is adapted to advance a pushing roller 39 to a position shown 'in dotted lines at 39'." The ram 3.8 passes through `lthe stationary casting 24, which serves in part as tion. Since the casting 24 is fixed to the main' housings 2, 2, it in no way affects the movements of the guide members 26, 28, and 30, although it serves asa fixed fulcrum point for the lever 34. The movements ofthe guides 26, 28, and 30 are controlled entirely by thc air cylinder 32, and the intervening linkage. The air cylinder 37 has an air connectionw, and is` mounted upon the side castings 2 and 5 as shown.

As the head end of the strip enters the machine, itis carried forward by the pinch rolls, bent over the `bending roll 8, and with the guides in the position shown in Figure 1 in dotted lines, it is carried around in a curved path to and over the supporting rolls 12, when it begins to wind up on itself to form the completed coil, which is indicated at 25. The supporting rolls 12 are stationary, and there is located between them stationary guiding means 12a. As the coil increases in size, the guide mzans 26, 23, and 30 move to compensate for its increase. When the coil is discharged, it rolls over the forward supporting roll 12 and the apron plate 47 onto any suitable means for carrying it away. Such means may comprise a conveyor, not shown, which receives and moves the coil laterally.

The adjustments of the roll 8 for overbending and a worm gear 49, which is bolted to the casting 9, as shown. The worm is mounted upon a worm ing of my machine. The shaft may be driven through mitre gearsr52 and 53, the latter of which may be carried on a shaft -54 mounted in bearings on the housings 2 and connecting the operating side of the machine with the drive side. The bearing casting 9 upon the drive side may be adjusted by a handwheel 55 which is carriedupon the shaft 54, whereas the casting 9 on the operating side may be adjusted by means of a handwheel 56 and the mitre gear which idles on the shaft 54. Handwheels 55 and 56 can be made to operate simultaneously by means of a friction clutch 57, the engagement of which may be controlled by means of a smaller handwheel 58 running on a screw upon the end of the shaft 54.

After the rolls 6, 7 and 8 have been adjusted for a particular character of strip, i. e. with respect to its gauge, temperature, etc., no other adjustments are usually required, so long as these conditions do not change. In actual practice, with this type of coiling machineI have found that when these adjustments Ahave been made the machine will operate for many hours without further attention.

The side guides 13 may be operated laterally, i. e., shifted so as to accommodate a narrower or wider strip by a right and left hand screw member 60 mounted in' a bronze block 61. The shaft 60 may be manually operated by means of a handwheel 62, the threads of the shaft engaging in threaded portions connected with the guides 13. Turning the handwheel 62 in one direction will cause these'guides to approach, whereas turning it in the other direction will cause them to separate. A

The carrier rolls 12 may be driven as through spindles 63, and I have shown the bending and pinch rolls 6, 7, and `8 as driven respectively' through spindles 64. Coupling boxes 65 engage the splined endsy of the said rolls and are held in position by the split collar spacers 66. I have not illustrated the driving means, since any prime mover or source of power, together with appropriate power transmitting means, may be employed.

Modications may be made 'in my invention without departing from the spirit thereof. The essential novelty of my invention and what I desire to secure by Letters Patent, I have set forth in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, isz- 1. In a coiling machine, the combination ofv upper and lower pinch rolls and a bending roll,l

said bending roll being mounted for revolution about the axis of one of said pinch rolls, whereby its position with reference to material being fed to said pinch rolls may be changed without varying said bending rolls relationship to said one of said pinch rolls, and guiding means located between said bending roll and said one of said pinch rolls, said guiding means being mounted for movement with said bending roll.

2. In a coiling machine, supporting means, an upper pinch roll mounted in said supporting means, a frame structure mounted for rotation in l"said supporting means and bearing a lower pinch roll and a bending roll, said lower pinch roll mounted so that its axis coincides with the axis of rotation of said frame member.

shaft turning in bearings 51 upon the housin said supporting means and bearing a lower pinch roll and a bending roll, said lower pinch roll mounted so that its axis coincides with the axis of rotation of said frame member, and guiding means mounted on said frame member and positioned between said lower pinch roll and said bending roll.

4. In a coiling machine, supporting means, a pinch roll mounted in said supporting means, a frame structure mounted for rotation in said supporting meansl and bearing a lower pinch roll and a bending roll, said lower pinch roll mounted so that its axis coincides with the axis of rotation of said frame member, guiding means mounted on said frame member and positioned between said lower pinch roll and said bending roll, and additional guiding means mounted on said frame member and located on the side of said bending roll opposite said lower pinch roll. y

5. In a coiling machine, the combination of supporting members and an upper pinch roll slidably mounted in said supporting members, frameV members journaled for rotation in said supporting members and bearing a lower pinch roll and a bending roll, said lower pinch roll being located directly below said upper pinch roll, its axis coinciding with the axis of rotation of said frame member, guiding means between said lower pinch roll and said bending roll mounted on said frame member, a pair of supporting rolls positioned to support a coil above said upper pinch roll, and articulated guiding means adapted when in closed position to conduct a strip through substantially the arc of a circle to one of said supporting rolls.

6. In a coiling machine, the combination of supporting members and an upper pinch roll slidably mounted in said supporting members.

frame members journaled ior rotation in said supporting members and bearing a lower pinch roll and a bending roll, said lower pinch roll being located directly below said upper pinch roll, its axis coinciding with the axis of' rotation of Said frame member, guiding means between said lower pinch roll and said bending roll mounted on said frame member, a pair of supporting, rolls positioned to support a coil above said upper pinch roll, articulated guiding means adapted when in closed position to conduct a strip through substantially the arc of a circle to one of said supporting rolls, and means for retracting said articulated guiding means, whereby a coil on said supporting rolls may be ejected.

7. Ina coiling machine, the combination of supporting members and an upper pinch roll slidably mounted in said supporting members, frame members journaled for rotation in said supporting members and bearing a lower pinch roll and a bending roll, said lower pinch roll being located directly below said upper pinch roll. its axis coinciding with the axis of rotation of said frame member, guiding means between said lower pinch roll and said bending roll mounted on said frame member, a pair of supporting rolls positioned to support a coil above said upper pinch roll, articulated guiding means adapted when in closed position to conduct a strip through substantiallyv the arc of a circle to one of said supporting rolls, means for retracting said articulated guiding means, whereby a coil on said supporting rolls may be ejected, and power actuated pushing means for dislodging a formed coil ing means, and a plurality of articulated guiding means adapted to guide a fed strip substantially through the arc of a circle from said bending to said supporting means, and means for moving said articulated guiding means to release a coil in a direction transverse to its axis.

9. In a high speed coiling machine, initial guidi" ing means, feeding and bending means, supporting means, and a plurality of articulated guiding means adapted to guide a fed strip substantially through the arc of a circle from said bending to said supporting means, land means for moving said articulated guiding means, said means corn,-v

prising power means and means for transmitting power to the articulated portions of said guiding means, whereby said portions are given unequal increments of motion.

10. In a high speed coiling machine, initial guiding means, feeding and bending means, supporting means, and a plurality of articulated guiding means adapted to guide a fed strip substantially through the arc of a circle from said bending to said supporting means, and means for moving said articulated guiding means, said means comprising power means and means for transmitting power tol the articulated portions of said guiding means, whereby said portions are given unequal increments of motion, and power means for ejecting a formed coil from said supporting means.

1l. In a high speed coiling machine, initial guiding means, feeding and bending means, supporting means, and a plurality of articulated guiding means adapted to guide a fed strip substantially through the arc of a circle from said bending to said supporting means, and means for moving said articulated guiding means, said means comprising power means and means for transmitting power to the articulated portions of said guiding means, whereby said portions are given unequal increments of motion, and power means for ejecting a formed coil from said supporting means, said ejecting means adapted to operate through one ofv said guiding means.

12. In a high speed coiling machine, initial guiding means, feeding and bending means, supporting means, and a plurality of articulated guiding means adapted to guide a fed strip substantially through the arc of a circle from said bending to said supporting means, and means for moving said articulated guiding means, said means comprising power means and means for transmitting power to the articulated porticns of said guiding means, whereby said portions are given unequal increments of motion, power means for ejecting a formed coil from said supporting means, and means'adjacent to said supportingl means for removing a formed coil from the coiler by gravity.

13. In a high speed coiling machine, side frame members bearing guideways, an upper pinch roll slidably journaled in said guideways, means for adjusting the pressure of said pinch roll, supplementary frame members rotatably mounted in said side frames, said supplementary members bearing a pinch roll and a bending roll, the axis of said pinch roll coinciding with the axis of rotation of said supplementary members, said lower pinch roll adapted to cooperatewith said upper pinch roll in feeding a strip, said bending roll mounted in said supplementarymembers for revolution about said lower pinch roll, guiding means between said bending roll and said lower pinchsaid supplementary members, adjustable guiding means for feeding a'strip into said pinch roll, and

l'adjusting the pressure of said pinch roll, supplementary frame members rotatably mounted in said side frames, said supplementary members bearing a pinch roll and a bending roll, the axis of said pinch roll coinciding with the axis of ro- /tation of said supplementary members, said lower pinch roll adapted to` cooperate with said upper pinch roll in feeding a strip, said bending roll mounted in said supplementary members for revolution about said lower pinch roll, guiding means between said bending roll and said lower pinch roll resiliently mounted on said supplementary members, additional guiding means mounted on said supplementary members, adjustable guiding means for feeding a strip into said pinch roll, and coil supporting and guiding means, said means comprising a pair of supporting rollers journaled in said frame members, guiding means therebetween, and articulated guiding means adapted to conduct said strip through substantially the arc of a circle to said supporting means.

l5. In a high speed coiling machine, side frame members bearing, guideways, an upper pinch roll slidably journaled in said guideways, means for Aadjusting the pressure of said pinch roll, supple.- mentary frame members rotatably mounted in said side frames, said supplementary members,

bearing a pinch roll and a bending roll, the axis of said pinch roll coinciding with the axis of rotation of said supplementary members, said lower pinch roll adapted to cooperate with said upper pinch roll in feeding a strip, vsaid bending roll mounted in said supplementary members for revolution about said lower pinch roll, guiding means between said bendingl roll and said lower pinch roll Aresiliently mounted on said supplementary members, additional guiding means mounted on said supplementary members, adjustable guiding means for feeding a strip into said pinch roll, and coil supporting and guiding means, said means comprising a pair of supporting rollers journaled in said frame members, guiding means therebetween, and articulated guiding means adapted to conduct said strip through substantially the arc of a circle ,to said supporting means, means for moving said articulated guiding means, means for ejecting a formed coil from said coiler by gravity, and means for removing said coil.

16. In a high speed coiling machine, side frame members bearing guideways, an upper pinch roll slidably journaled in said guideways, means for adjusting the pressure of said pinch roll, supplementary frame members rotatably mounted in said side frames, said supplementary members.

bearing'a pinch roll and a bending roll, the axis of said pinch roll coinciding with the axis of rotation of said supplementary members, said lower pinch roll adapted to cooperate with said upper pinch roll in feeding a strip, said bending roll mounted in said supplementary members for revolution about said lower pinch roll, guiding means between said bending roll and said lower pinch roll resiliently mounted on said supplementary members, additional guiding means mounted on said supplementary members, adjustable guiding means for feeding a strip into said pinch roll, and coil supporting and guiding means, said means comprising a pair of supporting rollers journaled in said frame members, guiding means litosisgisoi i 17; In a coiling machine, means for feeding and bending a strip,v supporting means for a coil, and extensible means extending substantially continuously from said bendingto said supporting means through an arc greater than 180 and movable to release a coil from said coiier in a direction transverse to its axis.

EDWIN B. HUDSON.

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