US2857115A

US2857115A - Apparatus for handling coiled metal stock

Info

Publication number: US2857115A
Application number: US519373A
Authority: US
Inventors: Robert B Foulks
Original assignee: Kaiser Aluminum and Chemical Corp
Current assignee: Kaiser Aluminum and Chemical Corp
Priority date: 1955-07-01
Filing date: 1955-07-01
Publication date: 1958-10-21
Anticipated expiration: 1975-10-21

Description

Oct. 21, 1958 R. B. Fou Ks' APPARATUS FOR HANDLING COILED METAL-STOCK Filed Jul 1, 1955 5 Sheets-Sheet 1 INVENTOR- ROBERT a. FOULKS N? Ha M 9 m or mm N ON Vm A ORNEY Oct. 21, 1958 R. B. FOULKS APPARATUS FOR HANDLING COILED METAL STOCK 5 Sheets-Sheet 2 Filed July 1, 1955 o ooooooo -Oo INVENTOR ROBERT B. FOULKS ORNEY Oct. 21, 1958 R. B. FOULKS 2,857,115

APPARATUS FOR HANDLING comm METAL sTocx- Filed July 1, 1955' 5 Sheets-Sheet 3 INVENTOR ROBERT a. mums Oct. 21, 1958 R. B. FouLKs APPARATUS FOR HANDLING COILED METAL STOCK 5 Sheets-Sheet 4 Filed July l 1955 INVENTOR ROBERT B.

FOULKS I I I y v N. mm M m NM ATTORNEY Oct'. 21, 1958 R. B. FOULKS APPARATUS FOR HANDLING COIL-ED METAL STOCK Filed July 1, 1955 5 Sheets-Sheet 5 REEL EXPANDING OYL.

con. ELEVATOR BEN mus ROLL CYL SENDING ROL C YL.

INVENTOR. BY ROBERT a. Fouuxs STRIPPER OYL -A Tram/5f United States Patent APPARATUS FOR HANDLING COILED METAL STOCK Robert B. Fonlks, Spokane, Wash., assignor to Kaiser Aluminum & Chemical Corporation,..()akland, Calif a corporation of Delaware Application July 1, 1955,'Serial Na 519,373

11 Claims. (Cl. 2. 12 -79) This invention relates, in general; to apparatus for" handlingmetal stock in .coiled form. .More particularly, it is concerned with providing a noveliele'vator apparatus which operates in conjunction witha coil stripping iapparatus so as to, transfer coiled metal-stock from an axial coil support such as a reel, mandrel or block to :othercoil haildling apparatus.

Accordingly, it is an object of thisinvention to provide a. novel'coil handling and.transferring apparatus of improved design with respect to the manner in which coiled stock is transferred from an axial coil support to other coil handling apparatus.

It is another object of this invention to provide an improved form of mechanismfor engaging. and transferring coiled metal strip from a winding or blocking reel or mandrel wherein contact with the coiledstrip is first made by means of rollers disposed in axial alignment with the axis of the coil and thereafter by rollers whose axis is located transversely to the axisof the aforesaid first mentioned rollers.

It is another object of this invention to provide a novel coil transferring device comprised of a coil elevator which is. adapted to receive coiled metal stock from a winding or blocking reel or mandrel and to transfer the coiled material in a direction parallel to the axis of. both the reel and the coiled material.

It is a further object of this invention to provide a:nove1 coil .transferring mechanism which is especially-adapted for handling highly finished strip metal in a manner afiording maximum protection to the surface finish of the metal.

It is another object of this invention to provide a novel coil transferring mechanism for removing coiled strip.

from, a coiling reel or mandrel and transferring the same to other coil handling apparatus wherein the possibility of loosening of the wraps of the coil is reduced to a minimum.

It is a further object of this invention to provide a novel coil handling apparatuswhich is adapted to remove a strip of coiled material from a reel or other similar apparatus and transfer the same to another coil handling apparatus together with novel control means for operating the same.

These and other objects of the invention will become more apparent from a review of the following detailed description when taken in conjunction with the accompanying drawings illustrating a preferred embodiment of the.- invention, wherein:

Figure l is a plan view of the novel coil elevator and transferring apparatus of the instant inventionand shows its position with respect. to an additional-handling device;

Figure 2 is a side viewof the .novel coil elevator and transferring apparatus shown inFigure 1;

Figure 3 is a transverse sectional view' ofthe apparatus disclosed in Figure 2 when taken alonglines 3-.-3 thereof;.. Figure 4 is an enlargeddetailed sectional viewofthe novel ironing roll mechanism associated with the elevator apparatus of Figure 1;

Figure 5 is a partial elevational view of the instant device similar to Figure 2 but in detail and in partial section; and

Figure 6 is a schematic view of a suitable type of hydraulic or pneumatic control system that may be used for operating the apparatus disclosed in Figure 1 as well as associated apparatus used-therewith.

In general, the apparatus comprises an elevator 1. This coil elevator 1 in turn is provided with a coil receiving platform or table 2. The coil receiving platform or table 2 is formed from a pair of opposing upstanding elongated plates or plate members 3 mounted in parallel spaced relationship to one another. The lower edges of each of the side platesi3 are welded to an elongated bottom'plate 4. Bottom plate 4 is interrupted intermediate its ends to provide a generally centrally disposed portion 4' for purposes to be hereinafter described. Journaled between the plates 3 and above the plate 4 at each side of the coil table 2 are groups of

rolls

5 and 5'. Located between the groups of

rolls

5 and 5 is an ironing roll assembly 6. Ironing roll assembly 6 in turn is comprised of a pair of ironing rolls 7 The function of the ironing roll assembly is to engage the outer periphery of the coil as the last turns thereof are made on the reel or mandrel and, in so doing, to keep these turns folded and against the coil proper until the reel has stopped rotating so that the trailing or tail end of the strip will not flap about or be uncontrolled as the mandrel slows and stops. These ironing rolls 7 are rotatably mounted by means of bearings 8 onshaft 9, the shaft 9 being journaled in spaced pairs of bracket members 10. As indicated particularly in Figures 4 and 5, bracket members 10 are suitably Y secured on a vertically movable, horizontally extending block member 11. The block member 11 rests on the centrally disposed portion 4 which in turn is reinforced by a heavy plate member 12 secured to the plates 4 by bolts or other suitable removable fastening elements. A

pair of parallel, spaced side plates 13, 13' are Welded to the block 11 thus defining a channel-like receptacle which is adapted to be fitted within the generally elongated channel-shaped receptacle formed by the side walls 3 and the adjacent end bottom plates 4 of the coil table 2. Thus it may be seen that the axes of rotation of ironing rolls 7 are disposed at a right angle with respect to the axes about which the

rolls

5 and 5' rotate. Further, it is apparent that the assembly 6 may, by reason of the fact that the block member 11 is vertically movable, be raised and lowered with respect to the elongated channel assembly such that the peripheral surface of the ironing rolls 7 may be positioned both above and below a horizontal plane such as is in effect generated by accumulated surfaces of

rolls

5, 5'. for raising and lowering the two ironing rolls 7. The means may comprise a piston-like member 14 mounted within an annular recess 15 in the central portion of block 11. Fluid is adapted to be directed into the annular recess or opening 15 by the medium of conduit 16 which is connected with a centrally disposed port 16' in piston-- like member 14,- as indicated particularly in Figure 4. Entry of fluid through conduit 16 and port 16' into the annular recess 15 in block member 11 will cause vertical displacement of the block member 11 as the hydraulic fluid Within the recess 15 exerts pressure against the annular end 15' of'therecess 15,'since the piston like member 14 is rigidly atfixed to the plate 4 in turn reinforced by members 12. Movement of block member 11 along with ironing rolls 7 will be effected-at a predetermined time as will be hereinafter described.

If. desired, guide members may also be provided at the A suitable means is also provided opposite ends of the block 11 such as cylindrical pin members 18, 18' fixedly secured to the centrally disposed portion 4'. These pins are in turn slidably telescopic within suitably provided annular. openings 19 as indicated particularly in Figure 4 in the movable block member 11 at the opposite extremities thereof. Thus it may beseen that the ironingroll assembly 6 comprises an integrally insertable unit which rests within the elongated channel assembly defined by

plates

3 and 4. By theme of removable fasteners 37 and tapered guide pins 37' as shown in Figures 4 and 5, the entire unit 6 may be removed and replaced readily thus facilitating maintenance of the hydraulic equipment It is also to be observed by reference particularly to Figures 1 and 2, that the one end of the coil supporting table 2, that is, the discharge end or right handed end as viewed in Figures 1 and 2, is provided with an extension 2. Extension 2' in turn is connected to the main portion of the table 2 through the medium of the intermediate connecting member 20. The anchoring member 20 may be formed of a casting comprising a fork including spaced prongs 21, 22 which are positioned in face abutting relation against the elongated plate members 3 and are bolted or otherwise fastened in rigid relation therewith. As may be seen from an inspection of Figures 1 and 3, these prongs 21, 22 extend a considerable distance along members 3 and may include stepped portions 21', 22' which may serve to reinforce the plate 12 if desired by welding or otherwise fastening the longitudinal marginal edges of plate member 12 to the stepped portions 21', 22' of the prongs 21, 22 of the intermediate connecting member 20. It is to be noted that the heavy plate member 12 is provided with apertures 12' coinciding with and of similar dimensions to the apertures or recesses in plate 4' through which pins 18, 18 and piston like member 14 may be inserted.

The member 20 also includes a collar-like element 34 I which is so positioned as to surround and be movable with respect to a vertical channel member 40 to be hereinafter described. The member 20 is further connected to the elevator extension 2' by a similarly arranged forked structure which includes bracket-like prongs 23.

The extension 2 is provided as is the case with the rest of the coil table 2 with side plate members 3 and a bottom member (not shown) with a group of rolls being suitably journaled between the upstanding side plate members 3' of the end extension 2 and either the bottom plate (not shown) or side plate members 3 may be fastened by any suitable fastening means to the bracket-like prongs 23. It is to be noted that the prong 21 may also support an apron or strip guiding member 28 on bracket members 39. 1

Means are also provided for raising the coil elevator table 2 together with its extension 2 upwardly, which means are separate and apart from the means used for elevating the ironing rolls. Thus, it is possible to raise and lower the ironing rolls 7 independently of the coil table and its

extension

2 and 2. The means forraising and lowering the coil table 2 and 2' as a unit will now be described.

' These means comprise a pair of

upright jack assemblies

26, 26. One of these jack assemblies is rigidly secured to one end of the coil elevator table 2, while the other jack assembly 26 is adapted to be secured in a suitable manner to the intermediate anchoring member 20. Since both of these jack assemblies are similarly constructed, a description of one will suffice for both. Jack assembly 26, for example, is comprised of a stationary piston 27 having axial ports 27' rigidly aflixed to a base plate 28 mounted on a rolling mill floor. The piston is adapted to be received within a cylinder opening or bore 29 in the bottom of the cylinder barrel member 30. The upper extremity of this cylinder barrel member 30 is provided with a slot 31 which is adapted to receive an outwardly projecting stepped end member.

32 to which the side plates 3 and the bottom plate 4 of the coil table 2 are connected as by welding. The bottom portion of the outwardly projecting stepped end member 32 is adapted to rest in the bottom 35 of the slot. End member 32 is also rigidly secured by suitable bolt means 33 to the upper portion of a cylinder. barrel member 30 as is apparent from an inspection of Figure 5. It will thus be obvious that upon the introduction of fluid through the medium of suitable conduits 36 for each of the

jack assemblies

26, 26 and the passage thereof through ports 27' to the top of the opening 29 will cause the cylinder 30 and thus the entire assembly including table 2 together with its extension 2' to move upwardly. Each jack assembly 26, 26' is also mounted within an upright channel member 40 which serves to guide the cylinder barrel member 30 in its upward and downward travel. Suitable anchoring members 41 may be used for further securing vertical channel members 40 to the floor of the mill. 1

In order to provide for equalization of the upward and downward movement of the jack assemblies 26, 26',

a pair of similar links 42, 42' are connected to the cylinder members 30 through a suitable slot 41' in the channels 40. These links are journaled at 4310 cylinder members 30 and include an articulated connection by means of pivots 45 and levers 44 with a shaft 46 to which levers 44 are keyed. Thus, since shaft 46 is interconnected to both

hydraulic jack assemblies

26,26 neither most position, as shown in dotted lines in Figure 2, of

the elevator mechanism.

Although the coil elevator of the instant inventionrnay be advantageously used with various 'types' of coil handling apparatus the preferred embodiment of the inven-' tion contemplates that it be employed with a collapsible type reel or mandrel 200 of conventional design and located adjacent the exit end of a rolling mill.

described hereinafter, and thereafter transfer the coil along a line parallel to the axis thereof and onto another coil handling apparatus or system such as that shown in line of rollers is suitably mounted upon

standard members

55, 56. A detailed discussion of the mounting means for these plates is not believed necessary since it does not form any part of the instant invention. also be noted by reference to Figure 1 that the plate members 54 for each line of rollers are so spaced from one another that they provide an opening 57 therebetween within which the extension 2' of the coil apparatus is adapted to recede at the time that the coil elevator 1 is retracted or at the time fluid is evacuated from the' top of the cylinder bores 29 in the

jack assemblies

26, 26'. of rollers 51 and 52 are also inclined slightly so that the The coil" elevator is adapted to receive the coil 47 indicated in dotted lines in Figure 3 after the collapsible reel or mandrel 200 is collapsed by a suitable mechanism to be It will It will also be noted that the rollers in each line coil, will be moved across the conveyortrough 50 onto another coil handling apparatus, or device such. as that disclosed in copending application S. N. 519,312. In addition, it is also contemplated that the coil elevator mechanism may-be used in conjunction with. the col-. lapsible reel 24 of a coiling block as well as a bending roll assembly 70 comprised of two

stationary rolls

71 and 72 along' with a bending roll 73 which is adapted to becomeseated in the. two

stationary rolls

71 and 72 at the proper time. A suitable type of bending roll apparatus is disclosed in Patent 2,699,904 to Wood along with suitable apparatus for operatingthe same. Accordingly, a detailed description of the. means for operating the bending rolls is not believed needed in this application with the exception, to be discussed hereinafter, of the hydraulic cylinders whichmay be employed for operating the linkage mechanism for the bending roll, namely, hydraulic cylinders 74 .and 75 whichare shown in Figure 6.

In addition, suitable means are also provided such as a. stripper bar 60, well known in :the art, for moving the. coil oil of the collapsible reel or mandrel 200, after the samehas been collapsed in a manner well'known'in the art. The stripper bar 60 in turn is connected to a piston rod 61Which is adapted to reciprocateina hydraulic cylinder 62 suitably mounted adjacenttthe collapsible reel 24 and adjacent the coil elevator. 1.

A suitable type of hydraulic system is provided for operating the stripper bar. 69, expanding and contracting the collapsible reel or mandrel 200, actuating the hydraulic jack assemblies, 26", the bending roll assembly 70% well as the ironing roll assembly 6 and the bending roll hydraulic cylinders 74-and -75.--. This by? draulic system is. diagrammatically shown in Figure 6.

As may be seen from inspection of Figure 6 the system isvcomprised of a reservoir tank 81., Mounted on thetank is a pump 82 adapted to be driven in a suitable mannerby a motor 83. The exhaust port 84'of the pumpis connected to a conduit-85 and the intake port 86 of the pump is connected by line. 87 to the tanlc, Conduit; 85 is connected to a four-Way solenoid operated Valve 90.

Branch lines

88, 91 connects conduit 85. toa second -four+way solenoid .operatedvalve 89. Valve89 is provided with a main intake port 93 and a main exhaust-port 94 which is connected by line 9110 thereturn mainconduit 96. which leads to the tank. Valve 89 alsocontains anexhaust port 97 which is. connected by line-98 and 98" tothe rod end of the bending roll

hydraulic cylinders

74 and 75. The other exhaust opening .99 of valve 89 is connected by

lines

95 and 100 to the bottom portion of the hydraulic cylinders 74 and-75. Conduit 16 also connected to line 95 leads to the piston like member14 and annular. recess 15 for. controlling the movement of the ironing rolls 7 afixed to the coil table 2.

The four-way valve 90 is provided with a main intake port 101 and a main exhaust port 102, the latter of which is connected to the return main-conduit96. The other two

ports

103 and 104 of valve 90 are connected to

lines

105 and 106, respectively. Line 105 is-also connected to line 107, one end of which leads into the rod end of the hydraulic cylinder 62 for actuating the piston r0d61 which controls the stripper'bar 60 for removing thecoil from the collapsible reel 200. The other end 104 of valve 90, Port 104 of valve .90'is1also connected to the. jack assemblies 26 and .26'--through'..the..me.dium. of lines 120, valve 117 and lines 121,. 1211'; and 'valve 118'; and lines 122. Having described the. components form-Q. ing the hydraulic control system, reference isagain made. to Figures 1 and din-consideringthe.operationof. the: instant arrangementwhich is as follows:

The last or tail. portion of,.the..strip. ,totrbe. coiled as. it advances close to .the reel operates .the.s0lenoid oper.-. ated valve 89 in such a manner as to actuatezthe. bending. roll motors 74 and'75. The. expansion ofthese motors; moves the top bendingroll 73 of tl'iebending roll assem.-.. bly 70 into a nestedposition'upon thestrip and betweenrolls 71 and 72 so, as to, put-a positive..bend. .in.the.tail; end of the strip as indicated in the referred. to.;patent ..to. Wood. Fluid for actuating the -ironing roll pistomlike. member 14 and recess 15 .al sotwillqcomeirom the line... to move the ironingrolls. 7 upwardly... At. approxi:.: mately the same time, thecoilingfrnachine, operator will; actuate valve 89 such that port:93--is connected to po t- 99 and port 97 is connectedto. port 94.. .Thusfluidwillt pass from the pump 82 through conduit 85 and branch. line 88, valve 89 and through .lines 95.ar 1d.10.0.into the.v bending hydraulic ,cylinders74 and 75. thus, causing ex pansion thereof and operation of the top bending roll-73.: At the saime time, fluid will also. be. caused torpass throughvconduit 16. connected to1ine-95 into theannue. lar recess 15 for operating the ironing rolls .7...-.In the meantime, of course,.. fluidin the .top. of the.

hydraulic cylinders

74 and 75 will be caused to pass outofrthese; cylinders through

lines

98, 98, valve 89,..and through 91, to line 96 and back to, the. reservoir. 81. Thus,z when the top bending roll. 73 and .theiironing rolls 7.are,:actu-;: ated, the ironing rolls will becaused .to be-raised: slightly; above the level of the remaining. rollassemblies 5 and 5' on'the coil elevator table 2..;At this. time. .also, the. coil elevator 1 is still maintained in,its lowermost posi: tion. When the coil begins to slowdown in; its move-H ment, as the motor for driving. theblockorreelon-the. coiling device. referred to isdeenergized, theapreferred, embodiment of the inventioncontfimplatesthat the.,cQil-- elevator 1 iscaused to movempwardly toapoint where; the ironing roll 7 will be broughtintoicontact with the; lower portion of .the coil-onthe collapsiblereel or ma11- drel 200. This is accomplishedby having, theaoperatorr manipulate valve to the pointwhere intakeport;101 will be connected to port 104 and-port103 .willtbe connected to exhaust port 102.. Whenth above. portsare: so connected fluid will then pass-under pressure, fromi pump 82 through line 85 and. valve .90 into; lineil l i. where it is first passed .through:li nes.120, 12.1,:121' and: 122 as well as valves 117 and .118;into.-the bottom'o f; the jackassemblies 26 and 26., thereby causing the cyl inder barrel portion 30 of the jack assemblyv to be raised: and in turn causing a raising of the-coil elevator assern: bly as a whole.

At this time the ironing rolls 7 will be :under greater; hydraulic pressure than the main coilelevatorl andgas. such, the main coil elevator will not-beincontact with the lower portion of the coil. It is contemplatedsthat the actuating pressure on the ironingroll'j is suchthat, it is just slightly above that onthe main coil elevator- 1;? At this time a workman may jog. the coil:on the coiling; machine by causing slight rotation .of the collapsiblereel; 24 until the tail end of the coilwill. be; locatedin'the bottom area or in substantially immediate contactwitht the ironing rolls 7. Because, of the pressure on thezirona'. ing rolls 7 due to their contact with the coil-stockthe; piston like member 14 and annular recess 15 willjact: 38 a hydraulic lock preventing. further upward movement;

of the jack assemblies 26,- 26'. At; this time. .alsotrthe fluid which is being passed throughvalve .90, :lines.120," 121, 121' as well as 122 will be caused toabackilupzzin. the several pressure control sequence"valveszrlfl'sqandu 118.

After the coil has been jogged around to the proper position so that the tail end thereof is located at the bottom of the coil the pressure on the ironing rolls 7 is released by reversing valve 89. Reversing of valve 89 causes a connection of

ports

93 and 97 and 99 and 94. Thus, fluid will be caused to pass into the top of bending roll

hydraulic cylinders

74 and 75 from line 98 through valve 89. and lines 98 and 98'. The fluid exhausted from the bottom of the cylinders will then be allowed to pass along with the fluid from the annular. recess 15 for the ironing rolls 7, from

lines

95 and 16 through valve 89 and into line 91 which leads to line 96 and back into the tank 81. As the pressure for ironing roHs 7 is relieved the hydraulic lock which prevented upward movement of the cylinder barrel members 30 of the jack assemblies 26 and 26' will be released. Thus

valves

117 and 118, respectively, will open thereby allowing fluid to be passed again from line 120 through valves 117 in line 121 as well as line 121' and valve 118 and line 122 into the hydraulic jack assemblies so as to cause upward movement of the cylinder barrel members 30 and in turn continued upward movement of the coil elevator 1 until the roll assemblies and 5' come into contact with the outer periphery of the coil. As the fluid is evacuated out of the annular recess which is operated to hold the ironing rolls 7 in their proper position, these rolls will fall a slight amount below the top surface generated by

roll assemblies

5 and 5 on the main coil elevator, which rolls will then be in contact with the coil, such that the ironing rolls cannot interfere with the free movement of the coil and the other rolls Sand 5' of the coil elevator 1. By this manner of operation the tail end of the coil will be constantly under pressure so that it cannot be released from the coil proper and will remain folded or wrapped thereagainst. It will also be noted by referring to Figure 5 that the cylinder barrel of the jack assembly 26' is provided with a cam portion 140. A suitable switch mechanism 141 is adapted to be tripped by this cam portion. As the elevator moves upward this will cause a closing of the solenoid operated valve 111 which causes

ports

112 and 113 to be connected. Fluid can then pass by pressure through line 106, valve 111,

lines

110 and 109 into the stripper cylinder 62 and the reel expanding cylinder barrel 108.

This in turn causes actuation of the piston rod 61 for the stripper bar which moves the coil off the collapsible reel 24 while simultaneously the fluid from line 109 is passed into the reel expanding cylinder barrel 108 causing it to contract thereby facilitating the coil stripping operation from the collapsible reel 24. Fluid exhausted from the hydraulic cylinders 62 and 80 is permitted to return to the tank 81 through the medium of the return lines 107, line 105, the

ports

103 and 102. The coil is thus moved across the table portion 2 onto the extension 2 of the coil elevator 1 until it abuts a stop member 150 at the end portion of the coil elevator table extension 2'. When this has been accomplished the operator then reverses valve 90 so that

ports

101 and 103 are connected. At the same'time,

ports

102 and 104 will be connected. At this time, fluid will be caused to pass from the pump through lines 85 and

ports

101 and 103 of valve 90 into

lines

105 and 107 thereby causing retraction of the stripper bar and an expansion of the mandrel 200 through the medium of the reel expanding cylinder barrel 108. At the same time fluid will also pass downward through the fixed piston of

jack assemblies

26, 26 because of the weight of the coil as well as the weight of the coil elevator mechanism 1. Thus the fluid will pass from the

jack assemblies

26, 26 through the medium of

lines

121 and 122,

valves

118 and 117 and

line

120 and 121 into the conduitline 106,

ports

102 and 104 of valve 90, and finally into the return line 96 which leads back into the tank 81." The lowering of the

jack assemblies

26 and 26'.will then cause the coiled stock to come into contact with the rollers 51 and 52 of the conveyor trough 50. As indicated above, the stock is then transferred onto such other coil handling apparatus as may be de-' sired.

The coil elevator mechanism is then in a condition for repeated operation in the manner described above, after the bending roll cylinders are operated by the solenoid operated control valve 89.

An advantageous embodiment of the invention has been herein disclosed and described. It is obvious that various changes may be made therein without departing from the spirit and scope thereof as defined by the appended claims, wherein what is claimed is:

1. In a coil elevator apparatus of the type to be disposed beneath a coiling mandrel, the combination of a coil supporting elevator table provided with a plurality of coil engaging rollers, means for raising and lowering said table and said rollers, an ironing roll mounted centrally on said table and disposed between a selected pair of adjacent ones of said coil engaging rollers, the axis of rotation of said ironing roll being disposed parallel to the axis of winding of a coil to be placed on said table, and means operable independently of said first mentioned means for vertically raising and lowering said ironing roll above the top level of said elevator table so as to engage the outer periphery of the coil.

2. In a coil elevator apparatus of the type to be disposed beneath a coiling mandrel, the combination of a coil supporting elevator table provided with a plurality of coil engaging rollers, the axes of rotation of said rollers being disposed at a transverse angle to the axis of winding of a coil located on the coiling mandrel, an ironing roll mounted centrally on said coil table and disposed between a selected pair of adjacent ones of said coil engaging rollers, the axis of rotation of said ironing roll being disposed parallel to the axis of winding of a coil on said coil elevator table, means for vertically raising and lowering said ironing roll above and below the top level of said coil supporting table, separate means for raising and lowering said coil supporting table, and a common hydraulic system for operating and synchronizing the actuation of both of said raising and lowering means.

3. In a coil elevator apparatus of the type disposed beneath a coiling mandrel, the combination of a coiled article receiving elevator table, roller means for contacting a rotating coiled article carried on said mandrel prior to operation of said receiving table, said roller means being mounted centrally of said table, said table including separate roller means permitting movement of said coiled article across and lengthwise of said table, means for elevating said coiled article receiving table, and means operable independently of said receiving table elevating means for vertically raising and lowering said first mentioned roller means with respect to the top level of said receiving table, said first mentioned roller means being disposed between a selected pair of said second mentioned roller means.

4. In a coil handling apparatus of the type described, the combination of a coiling mandrel, a coil receiving table adapted to be disposed beneath said coiling mandrel, said table being provided with a plurality of coil supporting rollers, the axes of which are disposed transversely to the axis of winding of the coil, means for raising and lowering said table and said rollers, an ironing roll mounted on said table, the axis of said ironing roli paralleling the axis of a coil disposed on the mandrel, means operable independently of said first mentioned means for raising and lowering the ironing roll above and below the top level of said coil receiving table, a stripper plate for pushing a coil off the coiling mandrel and across the rolls of said coil receiving table, means for operating said stripper plate, and a common hydraulic system for operating and synchronizing the actuation of both of said rais ing and lowering means andsaid stripper plate actuating means.

5. The combination as defined in claim 4, wherein said means for operating said stripper plate is controlled by actuation of the means for raising and lowering said coil receiving table.

6. In a coil handling apparatus of the type described, the combination of a collapsible coiling mandrel, a receiving table disposed beneath the coiling mandrel, said table being provided with a plurality of coil supporting rollers the axes of which are disposed transversely to the axis of a coil on said mandrel, hydraulically operated means for elevating said table and said rollers, an ironing roll also mounted on said table, the axis ofsaid ironing roll paralleling the axis of a coil disposed on said mandrel, hydraulically operated means operable independently of said first mentioned hydraulic means for raising and lowering said ironing roll above the top level of the coil receiving table and into initial contact with a coil, a stripper plate, hydraulic means for collapsing said mandrel and for operating said stripper plate whereby said stripper plate can push a coil oif of the coiling mandrel and across the supporting rolls of the coil receiving table, and a common hydraulic system for operating and synchronizing the operation of all of said hydraulic means.

7. The combination defined in claim 4, wherein said means for operating said stripper plate is directly controlled in response to movement of the raising and lowering means for said coil receiving table.

8. In a coil elevator and transfer apparatus of the type described adapted to be disposed beneath a coiling mandrel, the combination of a coil supporting elevator table provided with a plurality of coil supporting rollers the axes of which are disposed transversely to the axis of winding of the coil, means for raising and lowering said table and said rollers into and out of contact with the coil, an ironing roll mounted centrally on said table and between a selected pair of said coil supporting rollers, the axis of said ironing roll being disposed parallel to the axis of a coil placed on said table, and means for raising and lowering said ironing roll vertically above the level of said other rollers prior to actuation of said table raising and lowering means.

9. In a coil elevator and transfer apparatus of the type described, the combination of a coiling mandrel, a

coil supporting elevator table provided with a plurality of coil supporting rollers the axes of which are disposed transversely to the axis of a coil on the coiling mandrel, means for raising and lowering said table and said rollers, an ironing roll mounted on said coil supporting table, means for raising and lowering said ironing roll above the level of the other rollers, and means for controlling the operation of both of said raising and lowering means whereby the coil elevator table may be partially raised and the ironing roll fully raised so that the ironing roll may be brought into contact with the coil and thereafter the ironing roll may be retracted and taken out of contact with the coil as the coil elevator table is raised such that said supporting rollers are brought into contact with the coil.

10. In a coil handling apparaus of the type described, the combination of a collapsible coiling mandrel and a coil stripper plate, a coil elevator and transfer table disposed beneath the said mandrel, said table being provided with a plurality of coil supporting rollers, the axes of which are disposed transversely to the axis of a coil on said mandrel, means for raising and lowering said table and said rollers, an ironing roll mounted on said coil supporting table, means for raising and lowering said ironing roll above the lever of said supporting rollers, means for collapsing said mandrel, means for operating said stripper plate, and control means for eifecting operation of all the aforesaid means whereby the coil elevator table may first be partially raised and the ironing roll substantially fully raised until the ironing roll contacts the coil and thereafter the ironing roll retracted as the elevator table is fully raised until the coil is supported by and moved across the fixed rollers by said stripper plate upon the collapsing of said coiling mandrel.

11. The combination defined in claim 10, wherein said means for operating the stripper plate is directly controlled in response to actuation of the means for raising and lowering the coil receiving table.

References Cited in the file of this patent UNITED STATES PATENTS 1,931,484 Bosserdet et a1 Oct. 24, 1933 2,419,699 Wood Apr. 29, 1947 2,738,138 Russell Mar. 13, 1956 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 2,857,115 October 21, 1958 Robert B. Foulks It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction and that the said Letters vPatent should read as corrected below.

Column 10,- line 25,, for lever read level Signed and sealed this 31st day of January 1961.

(SEAL) Attest:

KARL H. AXLINE Attesting Ofiicer ROBERT C. WATSON Commissioner of Patents