US2012189A - Automatic casting machine for metal bars as used in composing machines - Google Patents

Description

Aug. 20, 1935. FRrrz 2,012,189 AUTO-MAT-IC CASTING MACHINE FOR METAL BARS AS USED IN COMPOSING MACHINES Filed May 20, 1952 s Sheets-Sheet 1 H. FRITZ Aug. '20,- 1935.

AUTOMATIC CASTIKG MACHINE 1 0R METAL BARS AS USED IN COMPOSING MACHINES Filed May 20, 1932 8 Sheets-Sheet 2 F m. U

HE. FRITZ;

AUTOMATIC CASTING" MACHINEEOR'; METAL BARS; ASE USED IN COMPOS-I- NG MACHINES Eimem May 20; 1 9,32?-

8 Shaa1s-$heet 3 Aug. 20, 1935. H. FRITZ 2,012,189

AUTOMATIC CASTING MACHINE FOR METAL BARS AS USED IN conp-osme MACHINES Filed May 20, 19:52 8sSheets1-Sheet 4 Fig.2].

rzm g H. FRITZ I AUTOMATIC CASTING MACHINE FOR METAL BARS AS USED IN COMPOSING MACHINES Aqg. 20. 1935'.

Filed May 20, 1932 8 Sheets-Sheet 5 Aug-20,- 1935. v -rz 2,012,189.

QJJTOMATIC CASTING MACHINE FOR METAL BARS AS USED IN COMPOSING MACHINES- Filed May 20, 1952 I 'a'spe'ets-sneet "a H. FRITZ Aug.- 20, 1935.

AUTOMATIC CASTING MACHINE FOR METAL BARS AS USED IN COMPOSING MACHINES Filed May zofiesz 8 Sheeis-Sheet 7 Fig. I5.

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Aug. 20; 1935. H. FRITZ 2,012,189 AUTOMATIC CASTING MACHINE FOR METAL BARS AS USED IN COMPOSING MACHINES Filed May 20, 1932 8 Sheets- Sheet 8 Patented 20, 15935 UNITED STATES AUTOMATIC CASTING MACHINE FOR METAL BARS AS USED IN COMPOSING MACHINES Hanns' Fritz, Wurzbnrg, Germany, assignor to firm Schnellpressenfabrik Koenig & Bauer Aktiengesellschaft, Wurzburg, Germany Application May 20, 1932, Serial No..612,541 In Germany April 29, 1931 30 Claims. (01. 22 r) The object of the invention concerns an absolutely automatically working machine, which remelts the line or letter material derived from the form after its use in the stereotyping or printing 5 department, and casts it into bars which are then valve or a tap and moulds turned by hand, no

longer answers modernrequirements. It is, on

, account of the open handling with lead, injurious to health and dangerous, besides requiring a large staff and much time. These disadvantagesinjury to health, danger, waste of employees and timethe new machine entirely removes. The melting and casting in the new machine take place completely under cover. The cooled bars are automatically deposited on a truck so that the workman who has to wheel them away, does not come into contact with either liquid or congealed lead.

The machine consists of three parts, the elevator (not shown), the melting furnace and the casting device.

a The method of working of the machine is as follows:-- l

The old material to be re-melted, comes out of the individual rooms in small box-shaped carriages into the melting kitchen and are raised and dumped into a preheating bunker.

The pre-warming bunker hangs on the ceiling of the melting kitchen in an iron construction. It has two movable trap doors on hinges which can be opened or closed as desired by means of a hand wheel. On opening the doors, the contents of the bunker slide into the melting tank of the furnace underneath. Between the melting tank.

and the bunker is a tightly closed jacket which directs the metal vapours into the chimney and allows the heat of the melted metal and of the furnace to ascend to the bunker. It is of course provided with doors to allow the metal to be cleaned and alloyed before the commencement of channel anascending passage which, whenthe mold is full, serves at the same time as an overflow. The tank itself is a rotary body devoid of every bulge, a fact to be noticed especially on account of the durability of the tank.

The casting apparatus which is screwed on to the casting channel of the metal conveyor, consists principally of a'mould and. a core as well as a drive for the turning of the core. The casting mould is a double walled cast'iron piece, which is put with its foot-flange on top of the gearing box. The interior of the mould is cylindrically ground out and has an opening which makes'the depositing of the metal bars possible. It is intensively water cooled. The corehas, for example, 20 milled out indentures in its circumference which serve as moulds for the bars to be cast. The casting mouth of the mould is so wide that it always supplies two moulds with metal simultaneously. When a certain time after the casting has elapsed the core is turned some way further correspond ing to two moulds on the circumference of the core. Assoon as the first moulds are filledwith metal, i. e. the first cast metal bars, have reached the delivery, two pestles, which lie in the interior of the core and are guided by means of fixed unround grooved rolls, move automatically forward and knock the bars out of the mould. Two pairs always work simultaneously so that two bars are always knocked out at the same time. The knocked out bars come to lie on a delivery device which is driven in step with the core. The delivery device then moves downwards until the bars lie on a roller-slope. As soon as thedelivery device has released the bars, they slide out on the said roller slope and push ag st the elastic stop which is fitted on the frame f an endless conveyor. The conveyor, moving by steps, is likewise driven from the core. 'When the bars reach the end of the conveyor they glide off over two conductors on to a truck which embraces a part of the conveyor band, the platformof such truck being formed in the shape of an U. This truck is likewise guided by guiding rollers on rails in order to secure a perfect entrance and exit.

Fig. 1, a'vertical section of a preheating bunker and coacting parts,

a Fig. 2, a section of a melting tank, showing coacting parts,

Fig.3, an elevation of a metal pump, partly in section,

Fig. 4, a horizontal section of a casting mold,

Fig. 5, a similar section showing ejecting means for the molds, I

Fig. 6, a vertical section of parts shown in Fi Fig. '7, a plan of a tangent wedge coupling,

for castings,

Fig. 15, a plan of the same, partly in section, Fig 16, an elevation of a'conveyor for castings, Fig. 17, a plan of the'same, Fig. 18, a vertical cross section of the same, i Fig. 19, an elevation of a truck. for finished bars, r

. Fig. 20, a plan of the same, and

Fig. 21, a wiring-diagram for the casting machine.

. lines.

In Fig. 1 the pre-heating bunker 48 with the dumping mechanism is shown in cross section. The bunker is, according to the construction of the building, mounted on an iron construction. It is either suspended from the ceiling or also supported from the floor and has slightly conical walls, so that a conglomeration of line material cannot take place. .The trap doors 53 and 54 are made fast to the bimker by means of hinges 55 and 56 running along the whole height of the doors. Two connecting rods 51 and 58 are connected to the. doors 53 and 54, such bars being connected with two double levers 59 and 80.-

These are operated simultaneously by nuts GI .and 82, which are provided with-right-handed surrounded by a jacket 58. This stands on the edge of thedurnace 89 in which the tank 'lflis suspended. Fig. 2.,shows a cross section of the furnace 89. Here the simple bowl shape of the tank is clearly seen. The tank will preferably be heated by means of the compressed air gas burners ll, whereby the burning gas is reversed through .an inserted fire guiding plate I2. Between the mantle 13 surrounding the tank and the fire clay work H, in these boilers an intermediate wall with insulation is employed.

, The mode of operation of an insulation so placed is an advantage, because the iron walls of the furnace are, from the beginning, less highly heated than when the insulation is placed outside the walls of the furnace. The effect of an insulation so placed is considerably greater than the outer insulation usual upto the present.

The metal supplying mechanism (Fig. 3) is so The underneath part of the bunker I8 is r to serve to drive the worm elevator", shaft 88 being driven by a motor I86 (Fig. 21).

The lower part of casing 18 provides space for the worm elevator while the upper part forms the outlet channel to the bar-casting apparatus. The

upward continuation 84 of the pipe to which the downwardly inclined pipe '19 is connected, allows the air of the casting room to escape and supplies during the casting process, owing to it being filled with lead, the hydrostatic pressure for the cast bars. The foot plate 11 provides a stepbearing for the elevator worm shaft' 18 and also provides several metal inlets 85. Through these inletsthe liquid lead flows into the worm elevator which, as a result of the working of the worm,

guides it into the bar-casting apparatus.

The bar-casting apparatus is illustrated in Fig. 4 in horizontal cross section. The bars are cast standing perpendicularly. In the drawings the moulds for the bars. are shown in about half cylindrical cross section provided with small conical to projections. Every desirable form of bar ca be manufactured in this manner. The foot 81 of the casting mould 88 is screwed on to the gearing box. It is provided with hollow walls and with water cooling. The opening 88 in the mould provides a space'for'the operation of means serving to knock out and deposit the bars. The cast iron socket 89 makes a tight joint with the metal channel of the elevator mechanism. The core 99, which is turnable in its bearing in the casting mould 86, has in the illustrated example, 20 moulds 9|. It is likewise made as a double walled body and provided with water cooling.

The device for knocking out the bars is illustrated in Fig. 5 in horizontal cross section and in Fig. 6 in vertical cross section. In the middle of the revolvabie core 98 is a stationary non-rotary spindle 92. Onthis spindle two grooved cams 98 and 94 are splined. Almost the entire circumference of the grooved curve is circular there being arise only at the point where the bars are knocked out. Between the two grooved discs is a piece 95, which is revolvable on the shaft. and is secured to the core 98. On the upper and lower side of the guiding piece 95,,ten radial straight guiding channels 98 and 91 are milled out. In these 29 channels the same number of blocks 98 fit which bear the plungers 99 for lmocking out the bars. Besides these plungers the blocks 98 have also journals Hill on which the rolls llll can turn. The rolls llll move in the grooved cams 98 and 98 when the core 90 turns. As can be seen in the Fig. 5, the faces of the plungers are in a straight line with the moulds 9|. Only at the point where the bars are knocked out do they project in the drawingout of the moulds 9| owing 'to the guiding of the cams93 and 94. Since two bars are always simultaneously. cast, two bars are also appropriately knocked out simultaneously. In order to accomplish this the plungers 99 are arranged at different heights "nd two grooved curved disks 93 and 94 are employed which are offset relatively to each other to the necessary extent circumferentially of the core.

The casting machine requires, for the casting process and for the cooling time, the stoppage of the mould, then a further onward movement corresponding to two casting moulds and then again another stoppage. The drive of the core must therefore be interrupted at regular intervals. For this purpose the tangent wedge coupling illustrated in Figs. 7 to 11 is embodied in the drive at,

a suitable place. A gear I05 is splinedto a steelshaft I04, lying in ball bearings I02 and I03. The shaft I04 has a semicircular. slot I06 extending under the gear I05 into which slot a tangent wedge I! is fitted. This is a turnable tangent wedge which in one position releases the coupling gear and in the other position clutches the latter to the shaft. Fig. 9 shows the position of the tangent wedge in the unclutching position and Fig. 8, the clutching position. The tangent wedge I0'I has a projection I08, which, when released is turned by a spring' I09 into the coupling-position. The tangent wedge I01, which is fullycylindrically turned for working together with the part nearest to the projection I08, is held by means of a ring IIO made fast on the shaft I04. The gear III which is constantly driven by a gear III- on a shaft I31 hereinafter describedruns loosely on this ring and on the projection I I2 of the III is connected with the shaft I04. The gear I now follows the revolution of the gear III until the latter by the presence of the stop H4, is'

again disconnected and thereby stopped.

The gear I05 transmits the movement as illus trated in Fig. 13 by means of a set of gears I I5 to a shaft I I 6, this by a pair of bevel gear wheels I I1 and- H8 to a shaft H9 which has -a worm I20. The worm I is geared to aworm wheel I2I which is splined to the core axle I22 which'may be an enlarged continuation of shaft 92, or be fixed to shaft 92, if separate therefrom. A stepb'y-step movement is therefore transmitted from the wheel II I' to the core. To bring ,about the interruptions in this drive the action of thestop II 4 for the tangent coupling must be controlled accordingly. For one revolution of the core,

since the core contains 20moulds and every'two moulds should be simultaneously filled, 10 casting periods and 10 advances of the core, each advance comprising two moulds, are necessary.

The core is therefore to be stopped 10 times.

For this purpose the underneath side of the worm -wheel,is provided with ten guide indentures I23 in which ten slide blocks I24 move. These slide blocks bear flexibly suspended arms I25 which have depending stops II4 while the arms I25 carry on their extensionjournals the rollers I26. These roller s'run on a ring I27. The ring I21 has a depression. at the point where it crosses the shaft P044 i. e. where'the projection of the tangent wedge I06 rotates. As soon asa roller I26 comes within range of the depression, it falls automatically into this depression and brings the stop II4 within reach of the projection I08 of the tangent coupling. The projection I08 meets at this moment the stop H4 and the drive of the mould is put out 'of action. When the casting and solidifying time'has elapsed, this stop II4 must again release arm I08 so that the core drivemay again beput into operation. Forthis purpose the blocks I24 have rollers I28 which run in a groovel29. The groove is-milled. into the worm wheel I30, the greater part of the length v of the groove lying in a circle and 'having' only wards. when the arm-and stop are drawn backwards to release the core drive, the projection of the tangent wedge is rendered free and the spring I09 makes the coupling effective, whereby the core is turned by one .tenth of its circumference. The worm wheel I30 which runs loosely on the core shaft I22 and has the said groove I29, is driven by a worm I3I, which is fixed to a shaft I32 which receives its drive over a gearing I33, a shaft I 34and a pair of bevel gear wheels I35 and I36. This drive is taken from the constantly revolving shaft I37 which receives its drive over a connecting worm I38 from the motor I86.

The constantly driven worm wheel I30 therefore decides the time during which the'core remains stationary. The time for one revolution of the worm wheel I30 corresponds to the time for one casting and solidifying period, as well as for p the advance of two casting moulds. Since however the control takes placeby means of parts .at a given moment andfor a determined time supplies the current for the fluid metal pump. The control of the metal pump therefore results from the wheel I30 and the slip ring I39. The

ring I39' is so adjusted that ,as soon as the move ment of the core is ended, the motor of the metal pump is switched on. The switching will be again referred to later.

Figs. 14 and 15 show the delivery for the bars. An oscillatory double depositor MI is fixed to a shaft I 40.' This depositor receives its movement over a swinging lever I42, 2. connecting 'rod I43 and a driving crank I44. This crank makes the same number of revolutions as the worm wheel I30 so that it makes one movement for every casting operation corresponding to the knocking out of two bars The bars which are knocked out of the core 90 by means of the previously described knocking-out device, are laid on the roller conveyor MI, by means of the oscillatory [depositor wherein they stand/ with their lower The bars strike upon the conveyor band illustrated in Figs. 16, 1'7 and 18 the carrying belt of v which is covered with polished metal plates to guarantee a, good'sliding of the bars. Opposite the opening of the core 90 for knocking out the bars there is astop I50 on the frame of the conveyor band, which limits the rhovementof the bars and assures that the bars I 5I lie in proper arrangement on the conveyor band. The

Since the rolls I49 are.

drive of the conveyor band is ,takenifrom' the shaft H6 (Fig. 13) so that when the core turns the conveyor also makes acorresponding forward movement. Inthismanner the bars have still time to cool thoroughly on their way to the truck. On the frame I53.'-of the conveyor band I52 two guiding rails I54 and'I5'5 are made fastwhich serve for guiding the truck into proper position for receiving the barsfrom the conveyor band. The steps I56 and I5I'are provided as. termini for the wheels of the truck for transporting the bars. 1

The transport truck for taking away the bars is illustrated in Flgs. l9 and 20. The'platform rotating, without operating the switch I81.

of the wagon I58 is so cut out that it can surround the conveyor band I52. bars projecting over the conveyor bandrest on the elevations I59 and I58 of the truck. If the truck while itis being loaded is slowly drawn backwards by the handle I5I the bars are piled up. When the truck is being wheeled in the wheels of the truck are outside the rails I54 and I55. In this case the rollers I54 and IE5 coact with rails I54 and I to give the truck the neces-' sary parallel position to the conveyor band I52.

Fig. 21 shows the wiring diagram for the drive of the casting machine. The motor I82 is set in motion by means of the starter switch I8I. Hereby the core mechanism and also the slip ring system is set in rotation. If now the switch I8! is switched on, a. remote switch I84, on one point of the slip ring, is, as the illustration shows,

switched on for the length of the segment of the slip ring, such remote switch also'setting in motion the motor I86 for the metal conveyor. The slip ring a runs past under the brush b and at this moment the remote switch I84 falls and stops the motor I88 and thereby also the metal conveyor. The push button I85 has a locking device and serves the purpose of setting before being set in action the working of the machine can be examined.

Method of working The method of working of the machine is as 1ollows:--'I"ne workman wheels the old letter material which is to be re-melted and which is contained in a truck to the elevator mechanism (not shown) where it is raised and dumped into bunker 48. When the bunker 48 is filled with an amount oi. old material corresponding to the content of the boiler, the workman operates the hand wheel 58 (Fig. 1). Thereby the trap doors 58 and 54 of the pre-heating bunker are opened and the metal falls into the boiler I8. when the blmker has been emptied it is again closed by the hand wheel 58 and during the melting of the metal filled into the boiler the workman can again freshly fill the bunker. As soon as the material in the boiler is melted and l the necessary temperature the metal is cleaned,

scrapedand newly alloyed. The metal is there-' fore now ready to be used for casting. The workman presses the button I85 so that the motor I85 for the metal conveyor I8 cannot be set in motion by the switching on of the machine. After that he lets the casting machine begin to run by operating switch I8I.' He thereby makes sure that everything in the machine and in its mechanism is in good working order. Duringthistimehecanalsoeasilygreaseallrevolving parts. Alter unlocking the press button I85 and while the machine is continuing V to run, two bars are always cast simultaneously,

The parts of the.

on to a double depositor and gently laid on the conveyor band. This conveyor band which like the core moves forwards step-by-step, lays the bars arranged beside each other on a specially constructed truck on which they can be further conveyed to the required placethe composition room. When the casting machine itself is in operation, it works absolutely automatically. The workman has simply to attend to the changing of the truck for the bars. A soon as the boiler is emptied the worker switches off the casting machine by operating the starter switch I8I, fills up the boiler III with old material, 2 melts and alloys the lead and then allows the machine to run further in-the manner previously described.

Although I have only described .and illustrated one form of the invention, I am convinced of the fact that this invention can also be employed without the use of the described details. On that account I do not wish to be limited to the details which are shown and described.

Having thus fully described my invention, what I claim is:

1. In a casting machine for metal bars, a casting apparatus, a fixed cylindrical casting mold and a revolvable cylindrical core therein having grooves forming casting molds, a plunger for each casting'mold and means for actuating the plunger to knock out the metal bar in a predetermined position of said core.

2. In a casting machine for metal bars, a casting apparatus comprising a cylindrical core, driving means for rotating the core about a vertical axis, a track concentric with the core said :rack having a low place, a series of pivoted arms rotating with the-core and supported by said concentric track, and 'means operated by a pivoted arm for stopping the core when such arm driving means 101 105851118 the core about a vertical axis, including a clutch; and unclutching means therefor, a track concentric with the arms acting on said unclutching means for stopping the core when any arm reaches said low place in the track. V y

5. In a casting machine for tal bars, a casting apparatus comprising a cylindrical core, driving means for rotating the core about a vertical axis, including a clutch and unclutching means therefor, 11 track concentric with the core said track having a low place, a series of pivoted arms rotating with the corev and supported by said concentric track, each of said arms acting on said unclutching means for stopping the core when any arm reaches said low place in the track, and means rotating about the axis of the core for withdrawing an operative arm to thus reestablish the core drive.

8. In a casting machine for metal bars, a rotary core having a plurality of molding cavities about its periphery, means for stopping the core at a plurality of points in each rotation thereof, and means for restarting-the core after a predetermined period.

' 'I. In a casting machine for metal bars; a rotary core having a plurality of molding cavities so I ported by said concentric track, each or said 1 l'i riod, said rotating means including a clutch, said stop-at the side of said horizontal conveyor op- I stopping means including a plurality of spaced pivoted arms rotating about the axis of the core and movable at-one point in their rotation into position -to uncouple said clutch, and timing means for withdrawing said arms radially from their unclutching position after a predetermined interval.

8. In a casting machine for metal bars, metal feeding means, a driving motor therefor, a time gearing, a circuit for driving the motor, a continuously'driven worm wheel, a slip ring on the worm wheel, a contact for engagement by the slip ring to close said circuit, and a segment on the slip ring.for breaking the circuit to stop the motor, said circuit being again closed to start the nrjnotor after said segment has passed said conact. E

9. In a. casting machine for metal bars, a vertical molding core, driving means. therefor including a tangent wedge coupling, means for unclutching said coupling at regular intervals in the rotation of the core, and timing means for restarting the core after a predetermined interval. I, i

10. In a casting machine, an elevated melting tank, a grooved casting core, a fixed casing coacting with the grooves of, the core in casting bars, means for rotating the core ste'p-by step abouta vertical axis, means for feeding melted.

,for receiving a vertical casting and layingit on said gravity conveyor, means for-positioning a truck at the discharge end of said traveling conveyor, and correlated automatic control means for controlling the step-by-step rotationof the core, for causing the feeding means to operate only when the core is stationary, and for operating the receiving means and the traveling conveyor in timed relation with said ejecting means. 11. In a casting machine, an elevated melting tank, a longitudinally grooved casting core, a fixed mold member coacting therewith, means for rotating said core step-by-step about avertical axis, means for feeding molten metal to a groove in said core while the same is stationary, means for ejecting a finished casting from *another r ve at such time, handling means for the finished castings including a horizontal conveyor, a gravity conveyor arranged to slide such castings endwise into a position crosswise 'of the horizontal conveyor, and an oscillatory device to receive said castings from the core and lay them on said gravity conveyor.

12. A device as in claim 11, including correlatedautomati'c control means for controlling the rotation of the core,for causing the feed to operate only when the core is stationary, and for operating the oscillatory device and the horizonposite to said gravity conveyor for arresting the movement of the castings across said belt conveyor. I

14. A device as in claim 11, including a correlated automatic control means for controlling the rotation of the core, for causing the feed to operate only when the core is stationary, and for operating the oscillatory device and the horizontal conveyor in timed relation with the casting operations.

15. A device as in claim 11,combi'ned with a I stop at the side of said horizontal conveyor 01)- posite to said gravity conveyor for arresting the movement of the castings across said horizontal conveyor, and correlated automatic control means I for controlling the rotation of the core, for causing the feed to operate only when the core is stag tionary, and for operating the oscillatory device and the horizontal conveyor in timed relation with the casting operations.

16. A device as in claim 11, including motors for driving the core, the metal feeding means,

the oscillatory casting receiving device and thelating the operations ofsaid motors, and means in said control circuit for cutting out the motor of the feeding means without interrupting the operation of the casting and conveying means.

18. In combination, a melting tank, a longitudinally grooved bar casting device, automatic means for intermittently rotating said device about a vertical axis, automatic means for feeding metal to a groove in said device between movements thereof, automatic means for simultaneously ejecting finished bars, a horizontal conveyor on the floor, and automatic means for translating said bars from vertical position to horizontal position on said conveyor.

for putting the metal feeding means out of action without interrupting the operation of the casting and ejecting means.

20. In a, casting machine for metal bars having an elevated melting tank, a preheating bunker above the same and an endless conveyor belt to receive the :lnished bars, the combination of a stationary circular casting mold, a core'therein said core having grooves symmetrically distributed on its periphery, means for rotating the core step-by-step' about its vertical axis, means to supply molten metal from the tank to two adjacent grooves of the core after each stepin its rotation, ejecting means for forcing the cast bars out of said grooves after the core has made nearly a complete rotation from the point where the molten metal is supplied thereto, means to engage the vertical bars ejected from the core and to move them into a horizontal position, an endless conveyor having a horizontal portion to receive 40, 19. A device as in claim 18, including means said horizontal bars, a truck having a bifurcated body adapted to straddle said horizontal portion axis, means for feeding molten metal to a plurality of grooves at each step of rotation, plungers mounted in said core, and means for forcing the plungers against a plurality of finished bars opposite said gateway for ejecting them from the core.

22. In a casting machine, a longitudinally grooved casting core, a fixedmold coacting therewith, means for rotating said core step-by-step about a vertical axis, means for feeding molten metal to a groove in said core, meansfor ejecting a finishing casting from another groove while such feeding is taking place, means for receiving the ejected vertical bar and moving it into a substantially horizontal position, and conveying means for receiving the bar when so positioned.

23. In acasting machine for metal bars having an elevated melting tank, a preheating bunker above the same and-an endless conveyor belt .to receive the nnished bars, the combination of a multiple-bar casting mold having a fixed casing and a. core rotatable about a vertical axis, means to supply molten metal incrementally to individual bar forming upright grooves of said mold, means for ejecting finished upright bars from said mold,fand handling means for bringing said bars into horizontal position on said conveyor belt.

24. A device as in claim 23, including a belt conveyor, means for sliding said bars crosswise of said conveyor, and means for moving said conveyor step-by step to receive said bars.

25. A device as in claim 23, including a belt conveyor, means for sliding said bars crosswise of said conveyor, means for moving said conveyor step-by-step to receive said bars, means for positioning a truck to take the bars off the conveyor, and means for moving the truckas the bars are placed thereon so as to cover the truck with a layer of cast bars.

26. A device as in claim 23, including a belt.

conv'eyor, means for sliding said bars crosswise means for ejecting a finished bar from said core 5 at each step in its rotation.

2'7. Ina machine for casting metal bars, a casting core rotatable on a vertical axis said core having longitudinalmolding grooves, a delivery device swingable on a horizontal axis from an upright receiving positionto" a substantially orizontal delivery position, and means for rem ving a bar from said device when in delivery position.

28. Molding mechanism comprising an axially grooved core mounted for rotation about a vertical axis, a casing for said core said casing having a gateway, ejecting means for the moldings,' a downwardly inclined conveyor adjacent said gateway, and oscillatory handling means for re-' ceiving the castings in vertical position and laying them on saidconveyor.

29. Molding mechanism comprising an axially grooved core mounted for rotation about a vertical axis, a casing for said core said casing having a gateway, ejecting means for the moldings, a downwardlyinclined conveyor adjacent said gateway, oscillatory handling means for receiving the castings in vertical position and laying them on said conveyor, and interconnected means for rotating said core and oscillating said pivoted handling means. k

30. Molding mechanism comprising an axially grooved core mounted for rotation about a vertical axis, acasing for said core said casing having a gateway, ejecting means for the moldings, a downwardry inclined conveyor adjacent said gateway, oscillatory handling means for receiving the castings in vertical position and laying them on said conveyor, and interconnected means for rotating said core, for operating said ejecting means and for oscillating said handling means.

HANNS FRITZ.

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