US2140841A - Barrel drier - Google Patents

Description

Dec. 20, 1938. J. w. LEONARD ETI/A1.v 2,140,841

BARREL DRIER Filed MaICh 18, 1938 5 Sheets-Sheet l /7'4L l df/@ y 2%.]

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.fissi M a Dec. 20, 1938. J w LEONARD ET AL 2,140,841

BARREL DRIER Filed March 18, 1958 5 sheets-shea 2 haag 20, 1938. J. w. LEONARD ET AL 2,140,841

BARREL DR IER Filed Maron le, 1958 5 shams-sheet s Muff/@ 22mm-nk.

Dec- 20, 1938 J. w. LEONARD E? Ax. 2,140,841

BARREL DRIE-R Filed March 18, 1938 5 SheefLS-Sheel 4V Dec, 2o, i938. y

BARREL DRIER Filed March 18, 1938 J. W. LEONARD ET AL 5 Sheets-Sheet 5 Patented Dec. 20, 1938 UNITED STATES PATENT OFFICE BARREL DRIER Application March 18, 1938, Serial No. 196,588

14 Claims.

This invention relates to improvements in means and methods for drying out the shell or body of a barrel after the staves have been assembled, and prior to the charring of the barrel.

In the manufacture of barrels, particularly those for holding liquids, stave stock of proper length is arcuately cut to conform in cross section to the diametrical cross section of the barrel. Stave blanks so formed are tapered from the middle toward both ends in such manner that when a barrel is formed therefrom it will have the desired end and mid-diameters and longitudinal curvature.

These staves, in proper number to form a barrel shell, are assembled and the staves temporarily but solidly secured at one end by a heavy iron ring, with the opposite ends of the staves flaring apart, these flaring ends are then slightly drawn inward and a light ring placed thereon and the shell is thoroughly steamed to permit subsequent bending of the staves. After steaming, the ilared ends of the staves are drawn together and a second heavy ring placed thereon to solidly hold the staves together, and form the barrel shell. These shells are then dried out and the rings driven clown to tighten the staves. Subsequently the shell is charred, crozed, and further operations carried out to complete the barrel.

The present invention relates to a machine by which the drying is accomplished, and to the method of accomplishing this drying as by the use of such a machine.

The objects of the invention are:

To provide means for drying barrel shells in a continuous and uniform manner.

To provide, in connection with the drying means, means for conserving the drying heat and steadying the shells during drying, and means for displacing such conserving and steadying means to release the shells successively for removal;

To provide means for ejecting the shells successively and automatically after their release; and,

To provide means for coordinating the action of the various instrumentalities used, and to improve the design and construction of the device as a whole, and of the details thereof.

The means by which the foregoing and other objects are accomplished and the method of their accomplishment will readily be understood from the following specication on reference to the accompanying drawings, in which:

Fig. 1 is a plan view of the machine with the overhead walkway and other overhead construction largely omitted.

Fig. 2 is a corresponding front elevation with the barrels in place for drying.

Fig. 3 is a sectional elevation taken as on the line III-III of Fig. 1.

Fig. 4 is an enlarged elevation of the ejector valve looking in the direction of the arrow IV in Fig. 3.

Fig. 5 is an enlarged section taken on the line V-V of Fig. 3 looking in the opposite direction from that of Fig. 4.

Fig. 6 is an enlarged sectional elevation taken as on the line VI--VI of Fig. l, and

Fig. 7 is a plan view taken as on the line VII- VII of Fig. 6 with the barrel removed.

Fig. 8 is an enlarged plan view showing the ejector mechanism.

Referring now to the drawings in which the various parts are indicated by numerals:

I is the floor level of the room in which the device is placed, and II, a pit below this floor level, this pit being shown in Fig. 1 as circular in plan with the exception that a portion II--A is enlarged to receive certain mechanism. I2 is the floor of this pit and I3 a rail disposed along a circular path to form a` trackway concentric with the center post I4.

Disposed in the pit, is a carrier or turntable, which includes a hub l rotatably disposed around the post I4 and plates I6 integral with or secured to the hub as by welding. Disposed between the plates I6 and integrally secured thereto are radial arms I'I, each of these arms preferably being made up of a pair of channel irons shown disposed with their flanges facing. Adjacent their outer ends the arms I'I rest on a pair of channel irons I8, I9, disposed with their webs facing and spaced apart to receive therebetween wheels 20. The wheels are journalled as on pins 2I which extend through the webs of the channels and are secured against longitudinal displacement by keys or pins 22. Preferably the wheels 20 are provided with hubs 23, adapted to abut against the webs of the channels I8, I9. The channels I8, I9, preferably are curved each to form a continuous circular beam concentric with the post I4, and are secured to the under side of the beams I1 as by welding on in any usual or desired manner. The beams I'I preferably extend beyond the channels I8, I9, and are secured to peripheral struts 24 which may be straight between the beams Il. 25 are similar struts, spaced preferably at the same distance radially inward from the beam I 8, that the struts 24 are outward from the beam I9. 26 are floor plates, preferably of metal, which are secured on the beams I1 and the struts 24 and 25, to form a floor for the carrier.

30 are posts, preferably each made up of a pair of channel irons having their flanges facing, which posts each respectively rest on and extend upward from a beam I1 adjacent the inner edges of the oor plates 26, the posts preferably being integrally securedto'thebeams I1 as by Welding.

3l are heaters or furnaces, each resting on a floor plate 26, each heater preferably having a heavy base 32 built of insulating refractory material, and an upper annular section 33, also of refractory material. Thecentral opening 3'4 in the annular section is preferably-of inverted frusto-conical form, with HVan .inwardly Ikprojecting annular ledge 35 at the bottom. 36 is an opening extending radially inward from one side of the heater, this openingforming Ya combustion chamber lying along the --top of A.the .base 32. The outer end of this openingisclosed by blocking 31 disposed around burners to -behereinafter mentioned.

49 are angle iron supports -whichare secured to the posts `3l] .as lby weldingVand rwhich supports each extendfrom one post vto the next. 4I

,are struts secured to the door plates 26,-.as by welding, and extending upward therefrom. .Each pair of these struts is -capped .by an .-angle iron 42 corresponding to the support 4.0 and integrally secured tothe struts. 43 are .barrelsupport bars, a pair of these bars zresting on -the -supports 4.9 and 42 and .being .rigidly .secured thereto. The bars 43 are-slightly above:the topsof theheaters 3I and are spaced .apart somewhat `more than the top diameter of the central opening34 of the heater so that they are .out of .the direct .-line of the heat arising =therefrom. The .topof .the bars are a trifle higher than -the floor level I0, so that barrels :may be slid from theebars tothe iloor Without catching-on'the oor edge.

44 are stop blocks eachvmounted on a-bar 43. These blockspreferably-eachcomprise'a flat strap bent substantially into 1U shape, and vdisposed with the -U ylegs upward, Ythe bottom -45of the U being conformed to encircle:its-barl43. .Thetwo leg :portions are spaced apart and are .adapted to be-clamped together by -a :'bolt-48, lvsuch clamping action also clamping the encircling `portion 45 of the U on 'the bar 43. The stops are adjusted'alongthe bars so tthat `they `will -stop and center the barrel shells over the heaters.

56 are covers `adapted to-rest onthe barrel --5I while it is beingheated and to-'conserve-the heat. Each of these covers preferablyconsistsof a refractory material designated Vby the cover numeral 5I) and a sheet 'metal backing52. From the sheet metal backing twolpars of rigidlysecured U shaped loops 53 extend upward. Each pair'of loops is disposed over an arm`54, which arm has a limited amount'of movement'between the backing 52 'and the top 'of'the'loops 53,this movement permitting the cover to'adjustablyeseat and rest solidly on the rtop of `the barrel when the arms C54 are lowered. The :arms '54 are ;in tegrally secured .to .and lextend substantially .at right angles respectively from the tops .of guide rods 55; each rodis s'lideablylmounted in a pair of brackets 56 .extending laterally from the side of a post '36. The'pair of arms 54 over each heater are connected together'by 'a substantially A shaped cross mem.ber`55,.thelegs of the Albeing rigidly lconnected to lthe 'two arms 54. yA

portion.

wheel 56 is journalled on a suitable bolt or pin 51 at the apex of the A member.

58 is a rail adapted to be engaged by the wheels 56. This rail in plan is curved to an arc concentric with the post I4, and lies in the path of travel of the wheels 56. In elevation it has a central horizontal portion, an approach portion 59, and a run-01T portion 68, the ends of both these latter portions dipping below the level of vthe"horizontal portion, the approach end 5S being adapted to engage beneath each wheel 56 as such wheel moves into contact with it and "to raise such wheel to the level of the horizontal Such movement raises the A member 55, and raises the two arms 54 carried thereby into engagement with the top of the loops 53, and continuing after such engagement, lifts the Icorresponding cover58-A clear of the top of the barrel, holding the raised cover in such raised position until the wheels 56 pass off the run-off end '60 of the track. 6I are a pair of beams supported by posts 62 vlying outside the circle of the carrier and pit, from which beams hangers 63 depend -into supporting engagement with the rail 58 and its approaches.

-y65 are a'pair of beamssupported at their opposite ends as by . posts 66, 61, which posts rest on diametrically opposite portions of the floor .IIL just outside the circleof the pit II. 68 are boards forming a walkway along the top of the beams 65. 69 are rungs of .a ladder by which access may be ,had to .the walkway 68 from the floor. 10 is a ladder supported by the beam :65 and depending therebelow adjacent the center of thepit. 1I isla hand rail.

12.is a chain belt encircling the beam I9. The

`chain 12 .is driven by suitable gearing 13 from .a .motor .14, the motor preferably being at floor level .and the Vgearing drive preferably including va vertic-allydisposed shaft 15 leading from the vfloorlevel down to thechain level in thepit.

-Each of the Aheaters 3| .is provided with -two burners 8l), adapted to heat acheckerwork-I of refractory material -which is disposed in the cen- ,tralopening 34 of the heater. The burners 80, which are of Well known construction, are supplied with fuel through pipes 84 each individually controlled by 'a cock 85. Fuel is supplied -to these pipes from an annular header 86 through suitable connecting pipes 81 and 88 and a T 89, the T also bein-g connected to a usual form of pressure regulating mechanism 90.

The header-86 is supported on the beams I1 and moves with them as they turn. Fuel is supplied to the header 8'6 through a pipe 9I controlled by a cut-off valve 92. The pipe 9I extends inward and continues upward as a vertically `disposed pipe 93 positioned in axial alignment with the center post I4. The vertical pipe 93 is rotatably connected and sealed through a Sleeve 94 to a stationary pipe 95 which is also vertically disposed and in alignment with the pipe 93.

96 are supporting members carried by the beams 65 and which support the pipe 95. Pipe 95 is fed with fuel from any suitable source of supply, not shown.

IOIl is a second header which is also supported by the beams I1 and moves therewith. This header is also connected to the rotatable Vertical pipe 93 by suitable piping Il, provided with a cut-off Valve |82. In addition to the burners 80, each heater is provided with a pilot light I 03, these lights being fed through pipes I84 from the header |00, and each of the pipes havin-g an individual control cock |05.

The barrels after drying, are ejected automatically by an ejector having a head adapted to engage the body of the barrel, this head being carried on the end of a piston rod I||, which rod extends through a stuffing box ||2 into a double ended cylinder H3. |I4 is the piston. In extended position the head IIO and rod i I have considerable overhang. The stufng boX I I2 is therefore made of extra length to provide, in connection with the piston, for carrying this overhang. The cylinder ||3 is supplied with air through pipes I I5, I i6, the pipe I I5 leading to the outer end of the cylinder and furnishing air to force the piston I|4 inward and Withdraw the ejector head H0, and the pipe ||6 furnishing air to the inner end of the cylinder to force the plunger outward and eject the barrel from over the heater 33. The pipes I I5, I I6, lead from the cylinder ||3 upward and overhead, preferably along the underside of the Walkway beams |55, in this raised position being clear Aof rotating parts of the device. The pipes II5, IIB, terminate at a control valve which may be suitably supported as by a hanger |I8 from the walkway beams 55 or other portion of the overhead structure. |I9 is an air pipe leading from a suitable source of compressed air supply (not shown) to the control valve ||1. The control valve is a typical form of four-way cock having a chamber |20 into which air is admitted through the pipe IIS, and an oscillatable slide I2I, shiftable by oscillation of a shaft |22. The slide I2I, shown in section in Fig, 5, has an enclosed chamber |23, the top of which is cut away in this view, and is held in place by the air pressure in the chamber |28. |24 is an exhaust port open to the atmosphere. |25 and |26 are ports to which the pipes H5, H6, are respectively connected. The shaft |22 extends through to the outside of the casing and has a squared end |21 on which is secured a lever |28. The valve I|1 is so po'- sitioned that as each barrel on the carrier in its turn reaches the point where it should be ejected, some one of the wheels 56 contacts the lever |28 and in its forward movement shifts that lever to the dotted position |28-A. When in the position |28 the slide chamber |23 is positioned over the ports |24 and |26, thus opening the inner end of the cylinder II 4 through the pipe I I8 to the atmosphere. Likewise the port |25 is in direct communication with the air entering through pipe I IS, and through pipe II5 holds the ejector in retracted position. As the wheel 58 moves the lever |28 to the position IZS-A, it shifts the slide chamber |23 to cover the ports |24 and |25, opening the outer end of the cylinder I|4 through the pipe |I5 to the atmosphere and supplying air to thhe inner end of the cylinder through the pipe IIB. When the wheel 56 clears the lever |28 a spring I 29 shifts the lever back toinitial position.

In making use of the device, with all the control cocks |05 closed, fuel is turned into the header |80 by opening the pilot valve |02. The cocks |85 are then opened one at a time, and each pilot light in turn as it is supplied with fuel, is lighted. After all the pilot lights have been lighted, the cocks |05 are individually adjusted to provide an even pilot iiame in each of the heaters. With all the control cocks 85 closed, fuel is turned into the header 86, by opening the main valve 92. Each of the cocks 85 may now be opened in turn and its burner ignited by the compleinentary pilot flame. With all the burners ignited the pilot valve |02 is closed, simultaneously cutting oi all the pilot lights, and each of the main burner cocks is adjusted to provide substantially identical flames from all the burners. Subsequent control of the burners is accomplished, as an entirety, by opening or closing the main valve 92.

In subsequent operation the pilot lights are turned on each evening by opening the pilot valve |02, and the main burners are then cut off by closing the main valve 92. During the night it is usually found advisable to maintain what may be termed an excessive pilot flame to keep the heaters partially warmed up. On starting up for operation each morning the main valve 92 is opened, the pilot lights igniting the burners, after which the pilot valve |02 is closed.

In operation the burners, after ignition, are allowed to heat up the refractory checkerwork 8| until it is brought substantially to incandescence, and the device is ready for barrel drying,

'I'he motor is started and the carrier or turntable set in. motion. As the covers 50 approach the rail 58, the inclined approach 59 engages each wheel 56 successively and raises the covers to the positions 50-A.

As each heater reaches substantially the position 3I-A (Fig. 2) near the center of the rail 58, a barrel shell 5|-A (Fig, 8) is placed by hand on the support bars 43 and pushed back against the stops 44 which serve to position the shell both laterally' and longitudinally of the bars. Shortly thereafter the run-off incline releases the cover 50 over this shell and the upper end is closed to conserve heat and steady the shell. During placing of the shell in position, the carrier and the heaters continue their movement, so that a second heater, as the heater 3|-B, is moving into position to receive another shell. 'Ihe loading operation is continued until substantially the entire carrier has been loaded. At this time, a shell which has been dried by the heaters nears the track approach 50 and as further movement continues the roller 56 climbs the approach raising the cover 50 to the position 50-A and releasing the shell beneath such cover so that the shell may be ejected. During this cycle, the rollers 56 in succession contact the valve lever |28, and with each contact air is admitted first to the inner end of the cylinder ||3 moving the ejector head outward, and then to the outer end retracting the head. This action is repeated as the first shell placed moves into alignment with the cylinder, and this shell is ejected automatically, furnishing space for an undried shell to be put on, and permitting the cycle of operations'to continue. l

It will be obvious that the number of heaters on the carrier and the speed at which the carrier turns should be so regulated that the barrels will be tho-roughly dried between the time they are placed on the carrier and removed therefrom and, that these factors must be coordinated to the speed at which assembling and other operations are performed prior to drying, and finishing operations are carried out subsequent thereto. If it is found that the barrels are being under-dried the burner temperatures are increased by further opening the valve 92, or if over-dried the temperatures may be reduced by reducing such opening until proper treatment is accomplished.

It will be understood that many changes in detail may be made without departing from the spirit and intent of our invention and it is to be understood that we do not Wish to limit ourselves to such detail except as in any claim that may be set out.

We claim:

1. In a barrel drier, a horizontally disposed circular carrier, means for rotating said carrier, a plurality of heaters mounted on said carrier for movement therewith, a plurality of burners, at least one for each of said heaters, an annular header mounted on said carrier, and movable therewith, pipes from said header each leading to a said burner, each said pipe having a control valve, a vertically disposed supply pipe at the center of rotation of said carrier, a valve controlled, axially aligned pipe rotatably coupled and sealed to said supply pipe, and extending outward to said header; a plurality of means mounted on said carrier, each adapted to support a barrelshell above a said heater, a' like plurality of barrel-shell covers, each above a said heater, means each for engaging said covers, means for successively raising each said engaging means and cover to permit ejection and replacement of said barrel-shells, and means for lowering said engaging means and covers to permit said covers to rest on said barrel shells.

2. In a barrel drier, a rotatable carrier, means for turning said carrier, a plurality of heaters mounted on said carrier for movement therewith, a plurality of burners, at least one for each of said heaters, an annular header mounted on; said carrier and movable therewith, pipes from said header each leading to a said burner, each said pipe having a control valve, a vertically disposed supply pipe at the center of rotation of said carrier, a valve controlled, axially aligned pipe rotatably coupled and sealed to said supply pipe, and extending outward to said header; and a plurality of means mounted on said carrier, each adapted to support a barrel-shell above a said heater.

3. In a barrel drier, a horizontally disposed rotatable carrier, means forrotating said carrier, a plurality of heaters mounted on said carrier for movementtherewith, a plurality of burners at least one for each of said heaters, and means for supplying fuel to said burners; a plurality of means each mounted on said carrier and each adapted to support a barrel-shell above a said heater, a like plurality of barrel-shell covers, means each for loosely supporting a said cover above a said heater, means for successively raising each said support and cover, to permit removal and replacement of said barrel shells, and for lowering said supports and covers to permit said covers to rest on said barrel shells.

4. In a barrel drier, a horizontally supported carrier, means for advancing said carrier, a plurality of heaters mounted on said carrier for movement therewith, a plurality of means each mounted on said carrier and adapted to support a barrel-shell above a` said heater, a like plurality of barrel-shell covers, each above a said heater, support means each for loosely engaging a said cover, means for successively raising each said support and cover, to permit removal and replacement of said barrel-shell, and for lowering said supports and covers to permit said covers each to be supported on a said barrel-shell.

5. In a barrel drier, a carrier, means for advancing said carrier, a plurality of heaters mounted on said carrier for movement therewith, a plurality of means each mounted on said carrier and each adapted to support a barrel-shell above a said heater, a like plurality of barrel-shell covers, each above a said heater, a plurality of supports eachloosely engaging a said cover, each said support having track engaging means, a track rigidly supported in the path of said track engaging means, said track having an inclined approach portion, a substantially horizontal center portion, and a run-off portion and being adapted to underrun said track engaging means, and respectively raise, support, and lower said supports and covers successively.

6. Means for drying barrels, including a working iloor, a pit having a floor depressed below said working floor, a center post, a circular track concentric with said post carried by said pit floor, a carrier centered on said post, and having supporting wheels running on said track, means for turning said carrier, a plurality of heaters mounted on said carrier for movement therewith, the tops of said heaters being below said working floor, a plurality of means each adapted to support a barrel-shell above a said heater, the tops of said support-means being substantially at said working floor level, a like plurality of barrel-shell covers, each above a said heater, means for supporting a said cover, means for successively raising each said support and cover, and for lowering r said support and cover to permit removal and replacement of barrel-shells, said lowering permitting said covers to rest on said barrel-shells.

7. Means for, drying barrels, including a working floor, a pit having a floor depressed below said working floor, a circular track carried by said pit floor, a carrier having supporting wheels running on said track, means for turning said carrier, a plurality of heaters mounted on said carrier for movement therewith, the tops of said heaters being below said working oor, a plurality of means mounted on said carrier, each adapted to support a barrel-shell above a said heater, the tops of said support-means being substantially at said working floor level, a like plurality of barrel-shell covers, means each for supporting a said cover above a said heater, means engageable with said supports in succession, for raising and sustaining said supports and covers, to permit removal and replacement of barrel-shells and for lowering said supports to seat said coverson said replaced shells.

8. In a barrel drier a horizontally disposed circular carrier, means for rotating said carrier, a plurality of heaters mounted on said carrier for movement therewith, a plurality of burners at least one for each of said heaters, a plurality of pilot lights, one for each said heater, an annular header mounted on said carrier, and movable therewith, pipes from said header, each leadingV to a said burner, each said pipe having a control cock, a vertically disposed supply pipe at the center of rotation of said carrier, an axially aligned pipe, rotatably coupled and sealed to said supply pipe, a continuing pipe extending outward to said header, a cut-off valve on said continuing pipe, a second annular header mounted on said carrier, pipes from said second header each leading to a said pilot light, each said pipe having a control cock, a supply pipe leading from said rotatable pipe to said second header, a cut-ori valve on said latter supply pipe; and a plurality of means mounted on said carrier, each adapted to support a barrel-shell above a said heater.

9. In a barrel drier a horizontally disposed circular carrier, means for rotating said carrier, a plurality of heaters mounted on said carrier for movement therewith, a plurality of barrel-shell supports, each above a said heater, a plurality of burners at least one for each of said heaters, a

plurality of pilot lights, one for each said heater, an annular header mounted on said carrier, and movable therewith, pipes from said header, each leading to a said burner, each said pipe having a control cock, a vertically disposed supply pipe at the center of rotation of said carrier, a continuing axially aligned pipe, rotatably coupled and sealed to said supply pipe, and extending outward to said header, a cut-01T valve on said continuing pipe, a second annular header mounted on said carrier, pipes from said second header, each leading to a said pilot light, each said pipe having a control cock, a supply pipe leading from said continuing pipe inward from said cut-01T valve to said second header, and a cut-off valve on said latter supply pipe.

10. A barrel drier, including a horizontally disposed circular carrier, means for rotating said carrier, a plurality of heaters mounted on said carrier for movement therewith, a plurality of support means mounted on said carrier, each adapted to receive and support a barrel-shell above a said heater` for drying, a like plurality of barrel-shell covers, each above a said heater, means each for engaging a said cover, means for successively raising each said engaging means and cover, to permit ejection and replenishment of said barrel-shells, means coordinated with said cover raising means for ejecting each of said shells in succession, means for replacing each said ejected shell with an undried shell, and means for successively lowering said engaging means and covers to permit said covers each to rest on a said replaced shell.

ll. A barrel drier, including a horizontally disposed circular carrier, means for rotating said carrier, a plurality of heaters mounted on said carrier for movement therewith, a plurality of support means mounted on said carrier, each adapted to receive and support a barrel-shell above a said heater for drying, a like plurality of barrel-shell covers, each above a said heater, means eachI for engaging a said cover, means for successively raising each said engaging means and cover, to permit ejection and replenishment of said barrel-shells, means coordinated with said cover raising means for ejecting each of said shells in succession, means for positioning an undried shell in alignment over the ejection cleared heater, and means for successively lowering said engaging means and covers to permit said covers each to rest on a said positioned shell.

12. Means for drying barrels, including a working floor, a pit having a floor depressed below said Working floor, a circular track carried by said pit oor, a carrier having supporting wheels running on said track, means for turning said carrier, a plurality of furnaces mounted on said carrier for movement therewith, the tops of said furnaces being below said working floor, and a plurality of means mounted on said carrier each adapted to support a barrel shell above a said furnace, the tops of said supporting means being substantially at said working floor level.

13. A barrel drier, including a carrier, means for progressing said carrier, a plurality of furnaces mounted on said carrier for movement therewith, a plurality of support means mounted on said carrier, each adapted to receive and support a barrel shell above a said furnace for drying, and horizontally movable means positioned and operable to eject barrel shells successively from said supports at a predetermined point in the cycle of operations, the tops of said supports being above the level of the tops of said furnaces whereby horizontal shift of said shells can be made.

14. A barrel drier, including a carrier, means for progressing said carrier, a plurality of furnaces mounted on said carrier for movement therewith, a plurality of support means mounted on said carrier, each positioned and adapted toreceive and support a barrel shell above a said furnace for drying, the tops of said supports lying above the tops of said furnaces, horizontally movable means positioned to eject barrel shells successively from said supports at a predetermined point in the cycle of operations, means for operating said ejection means, and means actuated by carrier movement for initiating said operations as such furnaces in succession aline with said ejection means.

JESSE W. LEONARD. WILLARD R. BU'I'IERWORTH, JR. WALKER L. WELLFORD, JR.

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