US1209071A - Corrugating-machine. - Google Patents

Description

J. H. TAYLOR.

CORRUGATING MACHINE.

APPLICATION 111:0 111 123. 1915.

LZGQQH. 1 Patented Dec. 19,1916.

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By H ys 1. HL TAYLOR. CORRUGATING MACHINE.

APPLICAHON FILED )APR. 23, 1915.

1,299,071 Patented Dec. 19, 1916.

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Patented Dec.19,1916.

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J. H. TAYLOR.

COR'RUGATING MACHINE.

APPLICATION mzn APR. 23.1915.

J. H. TAYLOR.

CORRUGATING MACHINE.

APPLICATION HLED APR. 23. 1915.

1,209,071. Paten- Dem 19,1916.

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JAMES HALL TAYLOR, 01' OAK PARK, ILLINOIS.

To all whom it may concern:

' Be it known that 1, JAMES TAY 'IAm, a citizen of the United States, residing: at Oak Park, in the'county of Cook and State of Illinois, have invented a certain new and useful Improvement in "Corrugating-Ma chines, of which the following is' a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming'a part ofthis specification. j

The present invention relates to corrugating machines ofthe type for "forming transverse. corrugations in pipes, tubesand the like. Machines of this type arepanticularly useful in forming corrugated fiues for boilers of the internally fired type. f1

Heretofore it has been found very 'diflicult to roll large and heavy tubes without causing surface abrasions. This difficulty has arisen primarily in feeding the metal through the. rolls due'to the manner of'driving of the rolls as 'practisedin the present art. a v 'p 'One of the chief objects of my invention is tov provide an improved method and means foroperating corrugating'rolls or the like. V

, 'A'notherf object to provide" improved means for adjusting the main zroll's and the guide'rolls. I 1 j Another object of my invention'is' to provide] means for adjusting theflength of: the corrugating rolls, andfa, still further object is to provide means for opening and closing the rolls at different speeds,

When a heavy tube is to be rolled the stiffness of the'metal demands a large d'riving friction between the driven rolls and the metal. This can only be secured'by' an increase of the pressure but increase in'fpressure on the roll tends to increasethe depth of the corrugations and. consequentlvincreases the difliculty of rolling. This causes the driven roll to slip and the surface of the tube is abraded and an unevenness in the rollingof the tube is developed. In rolls of this type it isfound advisable to make one of the rolls with rounded ridges; and the other with fairly sharp ridges, and dueto increased surface of the'round roll, ,it has been considered advisable to' drive this roll, but the abrasions that are caused are highly undesirable. Attempts'have been made to correct this driving from theothen roll, but the driving surface is greatly r'educ'ed CORRUGATINGr-MACHINE.

' 1 1 Specification of Letterslz'fatent. F Patented Dec, 19, 1916, Application me a rnas, 1915. Serial Nb. 23,38 1. y

and operation "is, unsatisfactory. Thave' solved the. difficillty by applying tractive effort on both" surfaces ofthe tubes during rolling' -The means'which I emplo'yfauto matically compensates for the differences in speedv which are caused by theIvariations'of inner and outerdiameter atflthe points of rolling. This gives a marked improvement in the behavior. of the feed and minimizes any tendency toward abrasion. or crooked rolling. 'I have'l'provided a compensating connection to take care of the different speeds of the-inner and outer roll and drive both rolls froma common source ofpower. I In order to en ble tho's'eIskille'd infthe art to practise the invention, I shall describe in the following specification with, the aid of the accompanying drawings one embodiment in which my nvention may'appear.

Figurel is an elevation of one embodiment of my invention; Fig. 2 is a plan view :of the same; Fig-3 is a-vertical longitudinal cross-section; Fig. 4 is an enlarged detail view of the slippage connection between the rolls;

Figs. 5 and 6 are'detailsshowing the manner of connecting the adjustingscrews with the bearingsyFig. Tjis an end View, taken from the leftof Fig. 1; Fig. 8 is a cross-sectional view taken on the line 8, 8,015 Fig. 2; Fig. 9 is atransverse cross-sectiontaken on theline'9, .9, of Fig. 2"; Fig.v 10 is an end [elevation of the driving I from the right of Fig.1.

mechanism taken The corrugating machine comprises eslsentially the two cooperating rolls land 2,

which in the machine I have illustrated, are placed one above the other, These rolls are made up of sections built up upon shaftsB ande in such manner that the width of the corrugated portion may be varied at will. To this end the intermediate-bearing post 5 is laterally adjustable as-viewed in Fig. 1', the sections 6 and'7 being removable in order to increaseor decrease'the width of the corrugated portion of the rolls 1 and 2. The

upper. roll l is relatively fixed and the shaft 3, which supports it, has bearings relatively fixed in the yoke '8, the movable pillar 5 I and the stationary pillars 9 and 10. Special provision is made for the bearings 11 at ,the outer end of the roll in the yoke 8 as will be described later.

F The lower shaft 4 has adjustable bearings 12, 13, 1 4 and 15 inounte'din the pillars 16, 5, 9 and 10, re-

spectively. The shaft3 whichibears the roll having the relatively sharp corrugations has a gear 17 keyed to the inner end thereof. This gear meshes with a pinion 18 mounted on the shaft 19 which has the gear 20 keyed upon the outer end thereof. The gear 20 meshes in turn with a pinion 21 secured to the clutch shaft 22. The clutch shaft 22 has the clutch elements 23 and 24 mounted there 13 upon, these clutch members being engageable sides of the tube. the shaft 3 and below it on the shaft 4, but free to rotate thereon, is a similar gear 37.

with cooperating clutch members secured to the gears 25 and 26 respectively, as shown more clearly in Fig. 2. The gear 25 is driven by a pinion 27 mounted directly on the motor shaft 28 which may be driven by any convenient source of power as, for instance, an electric motor 29 as I have shown inFig. 10. The gear 26 is driven in the reverse direction by means of a pinion 30 which is below the shaft 28 but geared thereto by means of the pinions 31 and 32 mount- ;ed upon the motor shaft 28 and the countershaft 33, respectively. The clutch members 23 and 24 are controlled by a hand lever 34 mounted upon an operating platform 35 and by throwing in the forward or reversing clutch, the corrugating rolls may be driven in the forward or reversing direc- 'tion as desired, or maybe disconnected from the driving motor. Thus by means of the gearing just describedthe upper roll 1 is driven by the motor. v

I shall now describe the means whereby I am enabled to apply a tractive effort to both A gear 36 is secured to Gears 38 and 39, mounted on the counter- ' shafts 40 and 41, respectively, mesh with the gears 36 and 37 and with each other. It can thus be seen that as the shaft 3 is driven forward it will drive the gear 37. A flanged collar 42, (see Fig. 4) is keyed to the shaft 4 and rotates therewith. The flange on this collar is clamped between two " flange members 43 and 44 which are normally held in contact with the flange on the collar 42 by means of the bolts 45 and springs 46. Suitable lining may be placed between the flanges 43, 42 and 44 in order to furnish the. proper degree of friction.

' The flange 43 is keyed and bolted to the pinion 37so that the same is compelled to ro tate therewith when driven by rotation of l the shaft 3. This provides a slippage connection between the shafts 3 and 4, such that there is always a tendency, determined by the amount of friction between the collar 42 and the flanges 43 and 44 for driving the shaft 4. The ratio ofthe gears 36 to 37 may be varied as desired.

The outer end bearing 11 of the upper roll 1 is provided with a suitable bearing box 11 held against upward movement by the yoke 65 8. The yoke 8 and the bearing box 11 are by a hand lever 65.

suitably secured together by means of the pin 47 which serves as a key. The bearing box 11 is normally supported upon a rod 48 pivoted at 49 to the yoke 8. The yoke 8 is pivotally'mounted upon the shaft 50 so that it can be swung out to clear the end of the roll in order to slip a tube or pipe over the roll 1 preparatory to rolling the same between the rolls 1 and 2. The rolls 1 and 2 are separated sufficiently at this time to 5::

the yoke 8 is moved upward the rod 48 is thrust upward due to the toggle action between this'rod and the short length of the yoke between the bearings 49 and the shaft 50. The pin 47 is thereafter inserted and the yoke remains in place to give the proper support to the shaft 3 when the rolls are pressed together during the operation of rolling a tube. The bearing boxes 12, 13,

'14 and 15 for the lower shaft 4 are supported upon jack screws 51, 52, 53 and 54, respectively. These jack screws may be raised by means of a threaded worm wheel 'each of which cooperates with a worm mounted on the shaft 56. The ack screws 52 and 53 are connected to their respective bearings by means of the couplings 131 shown in Figs. 5 and 6. The reduced end of the jack screws fits in a socket 57 and has a key 59 passing diametrically therethrough which key rests in a suitable slot 58 in the socket. This connection allows of ready separation of the parts even if the key 59 should become twisted or partially sheared. The jack'screw 54 is connected by means of a tapered key 60 passing through a hole in the bearing box 15. Inasmuch as 3 l the weight of the shaft 4 and the roll 2 is upon the opposite end to that of the bearing 15 this bearing will need to support an upward pull and hence the same is keyed to the ack screw 54 as above indicated.

I have provided means for drivmg the raislng and lowering mechanism at different speeds of operation in order that the roll 2 may be raised slowly during the operation of rolling or corrugating a tube and may be 1531 lowered quickly as when it is desired to insert or remove a tube from the rolls. To this endI have provided a gear 61 loosely mounted on a shaft 62 meshing with a pinion 63 secured to the'motor shaft 28. The

gear 61 may be connected with the ,shaft 62 by means of a suitable clutch 64 controlled The shaft 62 is connected by meansof suitable gears of different ratios, selectable by means of the clutch i 66, tothe countershaft 67, The shaft 67 may then be placed in driving relation of either forward or reverse direction with the shaft 56 by means of the clutch 68 and the bevel pinions 69. The clutch 66 for changing speed'and the clutch 68 for changing the direction of drive are controlled by hand levers 7 Oand 71, respectively. I

As above explained, it may be found desirable to shift the bearing post 5 in order to increase or decrease the 'length of the rollers l and 2. This is especially desirable for rolling various lengths and thicknesses of tubes. WVhen a short heavy tube is to be rolled the bearings are brought closer together to prevent springing or bending of the rolls. 1 To this end the shaft 56 is splined, as indicated in Fig. 3, in order to allow the worms, cooperating with the worm-wheel 55 of the jack screw 52, to be moved laterally without changing the height of the bearings 13. The bearing posts 16 and 19 are connected by suitable rods or stringers 72 and 73." I provide also a pair of guide rollers 74 and 75 on each side of the main rolls 1 and 2 for guiding the tubes which are to be corrugated and for supporting the same during the process of rolling. These rolls may be provided with rounded collars. 76, as

shown in the drawings" The guide rolls 7 4 and 7 5 are mounted in suitable bearings 7 8 in the bearing posts 16 and 9, which bearings are provided with means for raising and lowering the same similar to the means for lowering and raising the main roller 2. The ack screws 79 are, secured to the bearings 7 8 by means of pins and sockets similar to those shown in Figs. 5 and 6, the jack screws 7 9 beinglowered and raised by "means of suitable worm wheels 80 driven by worms 81 on the shafts 82. The yoke 8 which supports the outer end bearing 11 of the main shaft 3 may be suitably counterbalanced as by means of the weight 83 to lighten the work of raising and lowering the same. This yoke is steadied against lateral motion by means of the guide 84. When the roller 2, which is mounted on-the main shaft 4, is

raised or lowered, the distance between cen ters of the shaft 4i and the main shaft 4 is varied slightly.

'yoke48 and the yoke is swung outwardly.

The guide rolls 74c and 7 5' are moved-downward and the lower roll 2' 'is' dropped a of the tube or pipe between the rolls. soon as the same is 'in'place the yoke 8 is sufficientamount to allow ofready insertion As swung back intoplace, the rod 48 lifting the roll to its proper'position so that as the yoke 8 is brought up into position the bearing will be camnied or toggledinto position so that the'same-may be secured by the pin 47. The guide rolls 7 4 311(175'211'6 then brought upward to bring the tube againstthe upper roll 1. "'TheIlower-roll 2 is thenraisedto bring suitablepressure luponthe tube between the rolls. J The operation ofrolling is then carried on until the corrugations have been'made of suitable depth, after which the I do not'intendto be limited to the precise details of construction shown, as it is obvious that". numerous modifications and changes are. posslble wlthout departing from the scope of my invention. p

What I claim as new and deslre to secur by Letters Patent, is thefollowing: I

1. In combination, a pair. ofcorrugating rolls, common means for drlvlng sald. rolls, and a compensating connection between. one

of said rolls and said driving means.

.2. In combinatlon, apalr of corrugating rolls, common means'for'driving; said rolls,

said rolls 7 and said 3 driving means, and meansfor varylng. the space between sa d rolls.' I H 3; In combination, a pair of corrugating rolls, a gearing between said rolls, a compensatmg connectlon 1n. said gear1ng,and

common means for driving both of said rolls;

4. In combination, a pair of corrugating rolls, a driving connection between them,

compensating connection, driving means connected to one of said rolls, and means for varylng the spacebetween said rolls.

6. In combination, a pairofcorrugating rolls, one of said rolls having relatively sharp ridges, the other of said rolls having a compensating connectionbetween one of rounded ridges thereupon,'means to drive thefirst roll, a driving connection between said second roll and said driving means,

said connectioncomprising a compensating .element.

I 7. In combination, a pair of corrugating rolls, a shaft for each of said rolls, gears on said shafts, a pair of countershafts, gears. on said countershafts connecting with the other gears and witheaoh other and a compensating connection between one of said gears and one of said shafts.

' 8. In combination, a pair of corrugating rolls, each of said'rolls comprising a shaft,

gears on said-shafts, a pair of countershafts,. gears on each of said countershafts, said gears meshing with the other gears and with :j';each";other,i a compensating connection be-' tween one of. said gears and one of said shafts and means for adjusting the space between said rolls.

9. In combinatlon, apair of corrugatmg rolls, one, of said rolls having relatively sharp ridges thereupon, each of said rolls comprising a shaft, gears mounted on said shafts, a pair of countershafts, gears on said countershafts, said gears meshing with the other gears and with each other, a compensating connection between one of said gears 'and one of said shafts and driving means geared to said roll having relatively sharp ridges.

port for raising the end bearing, said means comprising eccentric means.

12. In combination, a pair of corrugating rolls, intermediate bearings and end bearings for said rolls, a yoke for supporting the outer end bearing of the upper roll, a shaft for said yoke, a rod connected to said yoke and mounted ecc'entrically of said shaft, said rod serving to raise said bearing into alinement with said yoke.

13. In combination, a pair of corrugating rolls, intermediate bearings and end bearings for said rolls, a yoke for supporting the outer endbearing of the upper roll, a shaft, said yoke rotatably mounted on said shaft, a rod connected to said yoke and mounted eccentricallv of said shaft, said rod serving to raise said bearing into alinement with said yoke and means to look said yoke to said bearing.

14:. In combination, a pair of corrugating rolls, one of said rolls being mounted above the other, a removable bearing support for the. outer end of said upper roll, a positive drive for one of said rolls, a compensating drive for the other of said rolls and means for advancing one of said rolls toward or from the other.

15. In combination, a pair of corrugating rolls,'one of said rolls being supported opposed to the other, means for freeing the outer end of one of said rolls, driving means connected to one of said rolls, gearing between said roll and said other roll, said gearing including a compensating connection, control means for advancing one of said rolls, and means for varying the speed of operation of said control means.

i 1.6. In combination, a pair of corrugating said rolls, means for freeing the outer end of said upper roll, one of said rolls having relatively sharpprojecting ridges between the outer and intermediate bearings, driving means for one of said rolls, gearing connected between said rolls, said gearing including a compensating connection and variable speed mechanism for simultaneously raising or lowering the outer and intermediate bearings of said lower roll.

18. In combination, a pair of shafts, -cor rugating rolls on said shafts, end and intermediate bearings, for said shafts, said end bearings being relatively stationary, and said intermediate bearings being shiftable laterally with respect to said rolls.

19. Incomb-ination, a: pair of shafts, corrugating rolls on said shafts, said rolls beingadjustable in length, bearings on said shafts adjacent the ends of said rolls, one of said bearings on. each roll being adjustable to accommodate adjustment of the length of the rolls.

20, In combination, a pair of shafts, a plurality of rolling collars upon said shafts, idle collars on each shaft, bearing collars intermediate said rolling and said idle collars, and ashiftable bearing post for said bearing collars.

21. In combination, a pair of shafts a plurality of roller collars upon said shafts, idle collars on each of said shafts, bearing collars intermediate said rollers and said idle collars, relatively-fixed end bearings for said shafts, and a shiftable bearing post for said bearing collars.

22. In combination, a pair ofshafts, a plurality of roller collars upon said shafts, idle collars upon said shafts, bearing collars intermediate said roller and said idle collars, a shiftable bearing post for said bearingcollars, and means to traverse one of said rolls with respect to the other.

23. In combination, a pair of shafts, a plurality of roller collars upon said shafts, idle collars upon said shafts, bearing collars intermediate said roller and said idle collars and clamped therebetween, relativelyfixed. end bearings for said shafts, a laterally-sh-iftable bearing post forsaid bearing collars, and means to traverse one of said rolls with respect to the other.

24. In combination, a pair of corrugating rolls, bearing pillars for said rolls, bearings for one of said rolls, said bearings being relatively stationary, bearings for the other roll, said bearings being movable in said pillars, jack screws connected to said bearings, said bearings having seats for said jack screws, open slots through said seats, and pins passing through said jack screws and lying in said slots.

25. In combination, a pair of corrugating rolls, a bearing pillar for both of said rolls, a stationary bearing for one of said rolls, an adjustable bearing for the other of said rolls, a jack screw cooperating with said adjustable bearing, said bearing having a seat for said jack screw, a slot through said seat, and a pin passingthrough said jack screw and lying in said slot.

26. In combination, a pair of corrugating rolls, relatively fixed end and intermediate bearings for one ofsaid rolls, adjustable bearings for the other of said rolls, said adjustable bearings comprising end and an intermediate bearing, jack screws for sald ad ustable bearings, sald bearings havlng seats for said ack screws, an open slot in one of said seats and a closed slot in another of said seats, pins passing through said jack screws and lying in said slots, and means for operating said jack screws in unison. r

27. In combination, ashaft, bearings for said shaft, jack-screws for said-bearings,

said bearings having seats for the ends of.

said j ack-screws, slots across said seats, pins in the ends of said jack-screws and lying in said slots, and common means for operating said j ack-screws in-unison.

28. In combination, a pair of corrugat ing rolls, a shaft for each of said rolls, gears on said shafts, a pair of countershafts, and gears on said countershafts connecting with the other gears and'with each other.

In witness whereof, I hereunto subscribe my name this 21st day of April, A. D. 1915.

JAMES HALL TAYLOR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

- Washington, D. 0.

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