US2097688A - Apparatus for lining tubular members - Google Patents

Description

Nov. 2, 1937. y c. w. EGGENWEILER E1' AL 2,097,688 APPARATUS FOR LINING TUBULAR MEMBERS Filed Dec. 17, 1954 :s sheets-shea -1 v lll INVENTOR S CHARLES W. EGGENWEILER WILIM J FIE EL /60 ,u ATTORNEYS Nov. 2, 1931.

2.l w.EGGENwE|| ER ET AL y APPARATUS FOR LINING TUBULAR MEMBERS Filed De'c. 17, 1934 3 Sheets-Sheet 2 J 1 l .Yi :l I Il l 59 u' wvl-:mons 1 CHARLES w. EGGENWEILER ,4 w|LLlAM J. FlEGEL ATTORNEYS Nov. 2, 1937. c. w. EGGENWEILER ET AL 42,0973588 APPARATUS FOR LINING TUBULAR MEMBERS n Filed Dec. 17, 1934 3 Sheets-Sheet 3 INVENTORS ID N HA LES WEGGENWEILER o 5 m@ my WM www J .HGETEORNEYS A v WV Patented Nov. 2, 1937 UNITED STATES PATENT OFFICE APPARATUS FOR LINING TUBULAB MEMBERS poration of Michigan Application December 17, 1934, Serial No. 757,926

19 Claims.

This invention relates to an improved apparatus for casting a liner upon annular surfaces and refers more particularly to the art of lining bearing shells.

One of the principal objects of this invention is to simplify, render more efllcient, and appreciably reduce the cost of manufacture of articles embodying a cast lining by providing a method of casting the lining capable of being expediently effected with relatively simple and inexpensive apparatus.

In accordance with this invention, a shell of a length predetermined in dependence upon the capacity of the apparatus is heated to a temperature found most suitable to effect an eflicient molecular bond between the liner and the shell, prior to pouring the molten metal of the liner into the shell, and the latter is rotated during the heating operation in order to more uniformly heat the shell. The shell is rotated at a relatively slow rate of speed, during the preheating operation aforesaid, so as to not only avoid deformation of the shell, but to also render the cooling effect of the rotation negligible insofar as lowering the temperature of the shell is concerned. After the shell has been heated to the required temperature the molten metal forming the liner, composed in some instances of a mixture of lead and copper, is poured into the shell and the speed of rotation of the latter is simultaneously increased sufficiently to provide the centrifugal force required to insure uniformly depositing the lead or similar metal upon the surface of the shell. The shell is then cooled while rotating at the relatively high speed employed during the pouring process, and thereafter is removed from the apparatus.

In addition to the foregoing, the present invention contemplates relatively simple apparatus .capable of expediently performing the several steps of the method with the minimum amount of handling of the shell, and the novel manner in which the apparatus performs the method of casting the liner in the shell will be made more apparent as this description proceeds, especially when considered in connection with the accompanying drawings, wherein:

Figure 1 is a fragmentary side elevational view, partly in section, of our improved apparatus;

Figure 2 is a sectional View taken on the plane indicated by the line 2-2 of Figure 1;

Figure 3 is a top plan View of the construction shown in Figure 1;

Figure 4 is an enlarged fragmentary sectional view of a. portion of the apparatus featured in Figure 1;

Figure 5 is a fragmentary longitudinal sectional view through another portion of our improved apparatus;

Figure 6 is a front end elevational view of the construction shown in Figure 1;

Figure is a fragmentary end elevational view of the clamping means for securing the shell to be lined in position; and

Figure 8 is a cross sectional view taken on the plane indicated by the line 8 8l of Figure 5.

The apparatus selected herein for the purpose of illustration is particularly adapted to cast a liner upon the internal annular surface of a bearing shell, although it will be apparent as this description proceeds that the principles involved may be advantageously utilized Wherever it is desired to cast a lining upon an annular surface.

The apparatus shown in the drawings for performing the several steps of our improved method, briefly outlined above, comprises a furnace I5 having a chamber I6 therein equipped with electrical heating units I'I vhaving a capacity suicient to heat the interior of the chamber to the desired temperature. As shown in Figure 4, the heating chamber is of suilicient dimension to accommodate a tube A of a length predetermined in dependence upon the number and size of bearing shells it is desired to form from the tube. The front wall I8 of the heating chamber is formed with an opening I9 therethrough of sufficient dimension to permit extending the tube A into the chamber and to accommodate the rotatable chuck 20 for holding the tube A. The rear wall 2l of the chamber is formed with an opening 22 therethrough arranged in alignment with the opening I9 and operable to permit the molten metal forming the lining for the tube A to be poured into the latter.

By reference to Figure 4 of the drawings, it will be noted that the opening 22 through the rear wall 2l of the chamber is normally closed by a fixture 23 having a cylindrical reduced portion 24 sleeved within the opening 22 and having an enlarged cylindrical portion 25 located exteriorly of the furnace at the front side of the latter. Extending into the heating chamber from the rear end of the reduced portion 24 is a pilot 26 arranged in axial alignment with the tube A and having a diameter less than this tube, but sufficient to provide a seat for the annular ange 21 extending inwardly from the rear end of the tube.

In the present instance, molten metal is supplied to the interior of the tube A within the heating chamber i6 through the fixture 23. 'Ihe foregoing is accomplished in the present instance by forming a well 23 in the enlarged portion 25 of the fixture for receiving the molten metal, and by providing a passage 29 establishing communication between the bottom of the well and the interior of the tube A through the pilot 26. As will be observed from Figure 4, the passage inclines downwardly from the bottom of the Well 28 to the pilot 26 in order to provide a gravity feed for the molten metal.

In pouring the molten metal into the tube A it is desirable to eliminate oxidization of the metal, and this is accomplished in the present instance by burning the oxygen in proximity to the receiving end of the well 26 during the pouring operation. In detail, a heating chamber 39 equipped with a gas or oil burner 3i is secured to the front side of the furnace below the enlarged cylindrical portion 25 of the fixture 23. As shown in Figure 6, the arrangement is such that the fiame produced by the burner 3 i is directed around the enlarged cylindrical portion 25 so that the molten metal introduced to the well 28 is actually poured through the iiame.

The metal employed in lining bearing shells usually comprises a mixture of lead and copper, and in order to provide an efficient molecular bond between the lining and shell, the present invention contemplates rotating the tube A at a relatively high rate of speed during the pouring operation. The tube A is rotated at the desired speed and is supported Within the heating chamber by means of the assembly designated generally in Figure 5 by the reference character 32. The assembly 32 comprises the chuck 26 previously described as engageable with the rear end of the tube A to support the latter, and also comprises driving mechanism 33 for revolving the chuck. By reference to Figure 4, it will be noted that the chuck 20 comprises a tubular member 34 longitudinally split as at 35 from the foreward end thereof to provide opposed semi-circular gripping portions 36 engageable with a correspondingly split collar 31 mounted upon the rear end of the tube A for securing the latter in clamping engagement with the plug 38 sleeved within the rear end of the tube. The plug 38 is preferably formed of graphite or some similar metal capable of withstanding considerable heat, and cooperates with the inturned flange 21 at the forward end of the tube to limit the axial flow of the molten metal within the tube A. The opposed gripping portions 36 of the chuck are urged into clamping engagement with the split collar 3T by means of a reciprocable cam member 39 slidably supported within the chuck 20 and having opposed rearwardly extending fingers 40 engageable with the portions 36 to move the latter toward each other upon rearward displacement of the cam member 39. In this connection, it will be noted that the inner surfaces 4| of the fingers 40 are tapered in opposite directions outwardly with respect to the axis of rotation of the chuck for engaging correspondingly tapered surfaces 42 extending forwardly from the opposed gripping portions 36. With this construction, it will be apparent that as the cam member 39 is moved in a rearward direction, or toward the cooperating gripping portions 36, the fingers 40 of the cam member will engage the tapered surfaces 42 on the gripping portions and, due to the direction of inclination of these surfaces, will move the latter portions toward each other into clamping engagement with the tube A.

It will also be observed from Figure 4, that the fingers 49 of the cam member 39 are provided with outwardly extending cam portions 33 movable axially rearwardly beyond the cooperating cam portions 64 on the tubular member 34 during movement of the cam member 39 to secure the cooperating opposed gripping portions into clamping engagement with upon movement of the cam member 39 forwardly to release the opposed gripping portions from the tube A. The cam member 39 is movable axially in opposite directions by means of a suitable hand wheel 50 operatively connected to the cam member by means of a shaft 5| having an enlarged portion 52 adjacent the hand wheel threadedly mounted within a sleeve 53 and supported centrally of the sleeve for axial sliding movement by means of a bushing 64. The sleeve 53 is journaled in a housing 55 and is xed against axial movement with the cam member 39 and associated parts, so as to permit axial displacement of the shaft 5i by the hand wheel 50 relative thereto. In this connection, it is to be noted that axial rearward displacement of the sleeve 53 re1- ative to the housing 55 is prevented by a face plate 56 fixed to the forward end of the sleeve 53 exteriorly of the housing and engaging the front side of the housing through the medium of a thrust bearing 5l. On the other hand, forward axial displacement of the sleeve 53 relative to the housing is prevented by means of a pulley 58 secured to the sleeve within the housing and bearing against the rear side of the front Wall of the latter.

'I'he manner in which the chuck is clamped to one end of the tube A having been previously described, reference will now be made to the means for revolving the chuck 2li to effect a rotation of the tube A. In the present instance, the chuck 20 is rotated by a prime mover 59 xedly secured to a suitable table and operatively connected to the pulley 58 on the sleeve 53 through the medium of a variable speed transmission diagrammatically designated in Figure 5 by the reference character 6i. 'I'he transmission may be of any suitable construction, but preferably embodies the Reeves principle, since particularly satisfactory results have been secured with this type of transmission. Of course, it will be apparent from the foregoing, that due to the connection of the cam member 39 with the sleeve 53, the former will be rotated as a unit with the latter from the prime mover 59 and it will also be understood that when the cam member 39 is in its operative or rearwardmost position, the same will transmit the drive to the tube A through the chuck 20. However, provision is also made for driving the chuck 20 from the face plate 56, and this is accomplished by securing the forward end of the tubular member 34 of the chuck to the face plate 56 by means of the removable clamps 62. By reference to Figure 8, it will be noted that the clamps are equally spaced from each other circumferentially of the face plate, and are so constructed as to accurately center the chuck with reference to the axis of rotation of the' face plate.

The foregoing construction is such as to permit rotating the tube A at variable speeds from the prime mover 59 and this is desirable In that it is instrumental in improving the efliciency of the casting operation. For example, the variable speed drive permits rotating the stock at the predetermined speed required to obtain the proper centrifugal action of the molten metal irrespecthe tube A, and operable fil tive of variations in diameter of the stock it is desired to equip with a cast lining. In other words, the provision of a variable drive renders it possible to utilize the machine for the manufacture of bearing shells of widely varying diameter. Moreover, the variable drive offers the possibility of rotating the tube A at a relatively slow rate of speed during the interval the same is heated within the chamber I6, and this is important since it insures uniformly heating the tube prior to the pouring operation.

After the liner has been centrifugally cast in the tube A it is, of course, necessary to remove the tube from the heating chamber I6 of the I mechanism 33 including the chuck 20. In this furnace and this is accomplishedin the present instance by actually moving the furnace relative to the driving mechanism. This arrangement is preferred, since it renders it possible to fixedly secure the driving mechanism, and thereby materially simplifies the construction of the apparatus. In detail, the furnace unit, including the fixture 23 and associated heating chamber 30, is supported upon suitable rollers peripherally grooved as at 66 for engagement with the track 61 comprising laterally spaced rails 88 flxedly secured to the table 68. Movement of the furnace unit toward and away from the driving mechanism 33 is accomplished by a suitable hand wheel 88 secured to a shaft 18 forming an extension of one of the roller shafts and having a gear 1I secured thereto adapted to mesh with a rack 12.' The rack 12 is also secured to the table 68 and extends in the general direction of the track so as to provide for the desired movement of the furnace unit upon rotation of the hand wheel 88. 'I'he construction is such that when the furnace unit is moved forwardly from the position thereof shown in Figure 1, the tube A carried by the chuck 20 passes into the heating chamber I8 through the opening I8 previously described as formed in the rear wall of the chamber t I8. 'Ihe forwardmost position of the furnace unit is illustrated in Figure 4, and it will, of course, be apparent that movement of the furnace forwardly by manipulation of the hand wheel 68 in the proper direction provides for withdrawing the tube A from the heating chamber I8 of the furnace. The furnace unit is automatically locked in the position thereof shown in Figure 4 by means of a spring pressed detent 13 carriedby the furnace and engageable in a suitable opening 111 formed in the table. It will, of course, be apparent that the spring detent must be raised prior to moving the furnace unit to the position thereof shown in Figure 1, and during this travel of the furnace unit the lower end of the detent will ride along the top of the table 80. A similar opening 15 is arranged in the top of the table for engagement with the spring detent when the furnace unit is in the position thereof shown in Figure 1, so as to actually limit the extent of movement of the furnace unit.

The apparatus is also provided with means for cooling thc tube A subsequent to casting the liner, and in the present instance the cooling means automatically moves into and out of operative relation to the tube A in timed relation to the movement of the furnace unit. In'the present instance, the cooling means moves into operative relation to the tube when the furnace is moved to the' rea-rwardmost position thereof shown in Figure l, and is moved out of operative relation to the tube when the furnace is moved to the position thereof shown in Figure 4. In detail, the cooling means comprises a header 11 supported in brackets 18 spaced from each other longitudinally of the header and having the upper ends secured to a rockshaft 19 which in turn l is journaled in brackets 88 fixed to the forward end of a frame member 8| and having the rear end secured to the furnace I5. 'I'he header 11 is supported from the frame member 8| in such a manner that when the furnace I5 is in the position thereof shown in Figure 1, the header assumes a position directly above the tube A and is provided with a series of openings 82 through the lower side thereof adapted to permit a cooling medium to be discharged upon the tube A while the latter is rotated by the driving connection, it is to be noted that one ed of the tube is closed by a suitable cap 83, while the opposite end communicates with the delivery side of a water pump 84 located Within a tank 85 and driven by a suitable prime mover 88. The arrangement is such as to provide for discharging water under pressure of the pump 8| upon the rotating tube A through the header 11 in order to effectively cool the tube subsequent to casting the lining into the same. It may be pointed out at this time, that the conduit 88 establishing the communication between the header `11 and delivery side of the pump 84 is flexible in order to permit unobstructed swinging movement of the header about the axis of the rockshaft 18 in the manner to be more fully hereinafter described.

The cooling medium discharged upon the tube by the header 11 is collected by a container 81 formed of complementary semi-circular sections 88 and having end walls 88 suitably recessed to receive the tube A therebetween. The container 81 extends for substantially the full length of the tube A, and the cooperating sections 88 thereof are pivotally4 mounted upon a trough 88 formed integral with the lower ends of the brackets 18 for swinging movement as a unit with the header 11 about the axis of the rockshaft 18. As shown particularly in Figures 5 and '1, the complementary sections 88 of the container 81 are secured to rockshafts 8l supported by the trough 88 within the latter in juxtaposition to each other and are operatively connected at the front side of the trough by means ofthe intermeshing pinions 82. The arrangement is such as to permit the complementary sections to be readily moved from the full to the dotted line positions thereof shown in Figure '1 by manipulation of a suitable control 83 secured to one of the rockshafts. By reference to Figure 2 of the drawings,.it will be noted that the cooling medium escaping from the container 81 is collected by the trough and returned to the tank 85 by means of the conduit 85.

` From the foregoing it will be observed that when the complementary sections 88 of the container 81 are in the dotted line positions thereof shown in Figure 2, the trough 80, header 11, and container 81 may be swung as a unit labout the axis of the rockshaft 19 to move the same out of operative relation lto the tube A. When the aforesaid parts are in their inoperative positions illustrated by the dottediines in Figure 2, the tube A may be removed from the chuck 2U and replaced by a tube blank, whereupon the said parts may be moved forwardly beyond the tube blank by movement of the furnace unit forwardly to the operative position thereof shown in Figure 4.

As stated above, means is provided in the present instance for swinging the coling means into and out of operative relation to the tube A in dependence upon movement of the furnace unit by the hand wheel 69. In detail, the means referred to comprises a follower 95 slidably supported upon a frame member 96 fixed to one side of the furnace and extending forwardly therefrom. 'Ihe lower end of the follower is equipped with a roller 91 engageable with an upwardly inclined forwardly extending cam surface 98 adjoining, at the upper end thereof, and elevated track 99 supported in a position substantially parallel to the track 61. 'I'he upper end of the follower is pivotally connected to the one end of an arm secured intermediate the ends to the rcckshaft 19 and having a segment |0I at the opposite end connected to a flexible cable |02 in the manner clearly shown in Figure 2. 'Ihe cable |02 is reeved around a pulley |03 carried by the furnace through the medium of the frame member 8| and the opposite encl of the cable is secured to a weight |04 forming a closure for the opening I9 when the furnace unit is in the forwardmost position shown in Figure 1, permitting the temperature within the heating chamber I6 to be raised to the desired degree preparatory to extending the tube A into the chamber.

From the foregoing it will be understood that upon initial movement of the furnace forwardly, the follower 95 is moved upwardly by the cam surface 98, rocking the arm |00 `and shaft 19 in a direction to lift the weighted closure |04 to open the aperture I9 through the front wall of the heating chamber. Of course, rocking the shaft 19 in the aforesaid direction effects a swinging movement of the several parts of the cooling means to the inoperative, or dotted line positions thereof shown in Figure 2, permitting the same to be advanced forwardly beyond the driving mechanism by the furnace unit. In this connection it may be pointed out that lifting the several cooling parts to their dotted line positions shown in Figure 2 by the follower 95 is somewhat expedited by partially counter-balancing the weight of these parts through the medium of a weight secured to the segment |0| above the axis of swinging movement of the cooling parts and spaced to the side of this axis opposite the side toward which the parts swing. It will be understood that the parts of the cooling means will remain in the inoperative positions thereof shown by the dotted lines in Figure 2, until the furnace has been moved rearwardly sumciently to permit descension of the follower from the track 99 whereupon the weight |04 returns under the action of gravity to its closed position with respect to the opening I9 and, in so doing, functions to move the several parts of the cooling means to the operative positions thereof designated by the full lines In Figure 2.

Operation Assuming that the parts of the apparatus are in their relative positions shown in Figure 1, with the exception that the complementary sections 88 of the container 01 have been moved to their dotted line positions shown in Figure 7, and that it is desired to cast a lining in a tubular blank A, the latter is gripped in thechuck 20 by actuating the cam 39 lthrough the medium of the hand wheel 60 in the manner clearly set forth in the previous description. In the meantime, the interior of the chamber I6 is heated by the velements I1 to the predetermined temperature required to effect an eicient molecular bond between the tube A and molten metal forming the liner. The furnace I5 is then moved forwardly from the position thereof shown in Figure 1 toward the tube A by retracting the spring urged detent 13 and manipulating the hand wheel 69. It will, of course, be apparent that the several parts of the cooling means and the follower move as a unit with the furnace, inasmuch as they are directly connected thereto.

Upon initial forward displacement of the furnace and associated parts, the follower engages the cam surface 98, so that as the furnace continues to move forwardly, the weighted closure |04 is raised out of registration with the opening I9 and the several parts of the cooling means swing outwardly to the positions thereof indicated in Figure 2 by the dotted lines. When the parts of the cooling means are in the aforesaid positions they are entirely free from the chuck 20 and permit the tube blank A to be extended into the heating chamber I6 through the opening I9 during the final portion of forward travel of the furnace.

When the tube blank A is in its final position within the heating chamber I6, shown in Figure 4, the same is rotated at a relatively slow rate of speed by the Reeves transmission 6I, in order to insure uniformly heating the blank to the desired predetermined temperature. Upon completion of the preheating operation, the mixture of molten metal selected to form the liner is poured into the tube through the fixture 23 in the manner previously stated. and the speed of rotation of the blank A is simultaneously increased suiliciently to develop the centrifugal force required to urge the proper constituent of the molten metal mixture in contact with the inner surface of the tube blank. In the present instance, a mixture of lead and copper is used and the blank A is rotated at a speed sufficient to insure contact of the lead with the inner surface of the tube. The foregoing features, together with the fact that oxidization of the lining metal is prevented by pouring the molten metal through the flame produced by the burner 3| and by utilizing electrical heating elements in the chamber I6, provides for securing a highly efficient molecular bond between the liner and tube blank.

Upon completion of the centrifugal casting operation, the furnace unit is moved rearwardly from the position thereof shown in Figure 4, and during the final portion of travel in this direction, the follower again engages the cam surface 98. In this instance, however, the follower moves downwardly under the iniiuence of the weighted closure andin so doing, positions the several parts of the cooling means in operative relation to the tube blank. The complementary sections 88 are then moved to their full line positions shown in Figure 2 by the manipulation of the handle 93 and the valve |06 is opened, permitting cooling medium under pressure of the pump 84 to be discharged upon the blank through the header 11. It will be understood that the blank A is cooled during rotation of the latter, and as soon as the same has been cooled sufficiently the sections 88 of the container 81 are again moved to the inoperative positions shown by the dotted lines in Figure 7, permitting the chuck to be operated to release the nished tube A. In the event the finished tube is to be used to form bearing shells, the same is introduced to suitable severing apparatus (not shown), designed to form a plurality of bearing elements from the tube.

2. In apparatus for casting a lining within a tubular member, means for rotating said member, a heating chamber movable axially of the member toward and away from said member and having an opening through the Wall adjacentv the member of sufficient dimension to receive the member upon movement of the chamber in a direction toward said member, means for heating the interior of the chamber to a predetermined temperature, and means carried by the heating chamber and communicating with the interior of the tubular member for discharging molten metal into the latter.

3. In apparatus for casting a lining Within a tubular member, a heating chamber having an opening through one end wall thereof, means for supporting a tubular member adjacent the wall aforesaid of the chamber in a position opposite the opening, means providing for relative movement of the chamber and supporting means toward each other to locate the member within the heating chamber, and means for conducting molten metal into the member while the latter is positioned within said chamber.

4. In apparatus for casting a lining Within a tubular member, a heating chamber having an opening through one end wall thereof, means for supporting a tubular member adjacent the Wall aforesaid of the chamber in a position opposite the opening, means providing for relative movement of the chamber and supporting means axially of the tubular member in directions toward each other to locate the member within the heating chamber, and means operable in dependence upon relative movement of the chamber and supporting means toward each other to register with the interior of the tubular member for conveying molten metal into the latter.

5. In apparatus for casting a lining within a tubular member, a heating chamber having an opening through one wall thereof, means for supporting a tubular member adjacent the wall aforesaid of the chamber in a position opposite the opening, means providing for relative movement of the chamber and supporting means axially of the tubular member in directions toward each other to locate the member within the heating chamber, means for conducting molten metal into the chamber while the latter is positioned within the chamber, and variable Speed means for rotating the member during the interval molten metal is poured into the same at a speed predetermined in dependence upon the diameter of the tubular member and the centrifugal force required to insure contact of the proper metal with the surface of the tubular member. 6. In apparatus for casting a lining within a tubular member, a heating chamber having an opening through one wall thereof, means for supporting a 'tubular member adjacent the wall aforesaid of the chamber in a position opposite the opening, means providing for relative movement of the chamber and supporting means toward each other to locate the member within the heating chamber, aclosure for the opening through the wall aforesaid of the chamber, and means operable in timed relation to relative movement of the chamber and supporting means toward each other to move the closure out of registration with said opening.

7. In apparatus for casting Va lining within a tubular member, means for rotating said member, a heating chamber movable toward and away from said member and having an opening through the wall adjacent the member of sumcient dimension to receive the member upon movement of the chamber in a direction toward said member, a closure for the opening in the heating chamber, and means operable in dependence upon movement of the chamber toward the member to move the closure out of registration with the opening.

8. In apparatus for casting a lining within a tubular member, means for rotating said member, a heating chamber movable axially of the member toward and away from said member and having an opening through the wall adjacent the member of sufficient dimension to receive the member upon movement of the chamber in a direction toward said member, means for heating the interior of the chamber to a predeter- `mined temperature, means carried by the furnace and communicating with the interior of the tubular member for discharging molten metal into the latter, and means also carried by the heating chamber for burning the oxygen in proximity to the last named means to prevent oxidization of the molten metal.

9. In apparatus for casting a lining within a tubular member, a heating chamber having an opening through one wall thereof, means for supporting a tubular member adjacent the wall aforesaid of the chamber in a position opposite the opening, means providing for relative movement of the chamber and supporting means vaxially of thetubular member in directions toward each other to locate the member within the heating chamber, and cooling means operable in dependence upon relative movement of the heating chamber and supporting means in directions away from each other to move into operative relation to said member.

10. In apparatus for casting a lining within a tubular member, a heating chamber having an opening through one wall thereof, means for supporting a tubular member adjacent the wall aforesaid of the chamber in a position opposite the opening, means providing for relative movement of the chamber and supporting means toward each other to locate the member within the heating chamber, and a container adapted to receive a cooling medium and responsive to relative movement of the heating chamber and Supporting means in directions away from each other to move into a position wherein the major portion of the member is housed thereby.

11. In apparatus for casting a lining within a tubular member, a heating chamber having an opening through one Wall thereof, means for supporting a tubular member adjacent the wall aforesaidl of the chamber in a position opposite the opening, means providing for relative movement of the chamber and supporting means axially of the ltubular member in directions toward each other to locate the member within the heating chamber, and cooling mechanism for the member rendered operative by relative movement of the heating chamber and supporting means in directions away from each other.

12. In apparatus for casting a lining within a tubular member, a heating chamber having an opening through one wall thereof, means for supporting a tubular member adjacent the wall aforesaid of the chamber in a" position opposite the opening, means providing for relative movement of the chamber and supporting means toward each other to locate the member within the heating chamber, a container adapted to receive a cooling medium and responsive to relative movement of the heating chamber and supporting means in directions away from each other to move into a positionv wherein the major portion of the member is housed thereby, and means for rotating the member when the latter is within the heating chamber. and also when the same is housed in the container.

13. In apparatus for casting a lining within a tubular member, means for rotating said member, a heating chamber movable axially of the tubular member in directions toward and away from said member and having an opening through the end wall thereof adjacent the member of suillcient dimension to receive the member upon movement of the chamber in a direction toward said member, and means for cooling the member including mechanism movable into operative relation to the member in response to movement of the chamber in a direction away from the member.

14. In apparatus for casting a lining within a tubular member, means for rotating said member, a heating chamber movable toward and away from said member and having an opening through the wall adjacent the member of sufiicient dimension to receive the member upon movement of the chamber in a direction toward said member, and a container adapted to receive a cooling medium responsive to movement of the heating chamber in a direction away from the member to move into a position wherein the major portion of the member is housed thereby.

15. In apparatus for casting a lining within a tubular member, means for rotating said member, a heating chamber movable toward and away from said member and having an opening through the wall adjacent the member of sumcient dimension to receive the member upon movement of the chamber in a direction toward said member, a container adapted to receive a cooling medium responsive to movement of the heating chamber in a direction away from the member to move into a position wherein the major portion of the member is housed thereby, and means for rotating the member when the latter is located in the heating chamber and also when the same is housed by the container.

16. In apparatus for casting a lining within a tubular member, cooling member including a container comprising commechanism for the plementary pivotally supported sections movable from an open to a closed position for housing the maior portion of the member, means mounting the container on the apparatus permitting movement of the container into and out of registration with the member in the open position of the complementary sections, and means for moving the container into and out of operative relation to the member.

17. In apparatus for casting a lining within a tubular member. cooling mechanism for the member including a container comprising complementary pivotally supported sections movable from an open to a closed position for housing the major portion o! the member. means mounting the container on the apparatus permitting movement of the container into and out of registration with the member in the open position of the complementary sections, means for moving the container into and out of operative relation to the member, means for discharging a cooling medium into the container in the closed position of the sections, and means for rotating said member.

18. In apparatus for casting a lining within a tubular member, cooling mechanism for the member including a container comprising complementary pivotally supported sections movable from an open to a closed position for housing the major portion of the member, means mounting the container on the apparatus permitting movement of the container into and out of registration with the member in the open position of the complementary sections, means for moving the container into and out of operative relation to the member, means for discharging a cooling medium into the container in the closed position of the sections, and means for directing the cooling medium overowing from the container back to the source of cooling medium supply.

19. In apparatus for casting a lining Within a tubular member, cooling mechanism for the member including a container comprising complementary pivotally supported sections movable from an open to a closed position for housing the major portion of the member, means mounting the container on the apparatus permitting movement of the container into and out of registration with the member in the open position of the complementary sections, means for moving the container into and out of operative relation to the member, means for discharging a cooling medium into the container in the closed position of the sections, and means for directing the cooli'ng ,medium overowing from the container back to the source oi cooling medium supply, said cooling medium discharge means and said directing means being mounted for movement as a unit with the container into and out of registration with the member.

CHARLES W. EGGENWEILER. WILLIAM J. FIEGEL.

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