Splash arrester apparatus

Claim 2

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, a level sensing device carried by the body, an indicating means disposed exteriorly of the mold for indicating the position of the sensing device with reference to the level of the molten metal within the mold, and means for automatically raising the device progressively as the level of the molten metal rises in the mold.

Claim 3

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, the device including an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body through which the molten metal is discharged in ribbon-like form from the body, and a second body in the form of a hollow member which is carried by the body and depends therefrom and into which the molten metal discharged from the body is further encompassed.

Claim 4

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, the device including an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body through which the molten metal is discharged in ribbon-like form from the body, and a second body in the form of a hollow member which is carried by the body and depends therefrom and into which the molten metal discharged from the body is further encompassed.

Claim 5

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, the device including an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body through which the molten metal is discharged in ribbon-like form from the body, the impact member having a substantially pyramidal shape, the apex of which is adjacent the vertical center of the body and the base of which cooperates with the body to form channels through which the molten metal flows, the body of the device having walls which diverge upwardly and outwardly from the bottom, and the impact member having a portion thereof shaped so as to be complementary to the slope of the walls whereby the impact member is held by gravity in its position within the device.

Claim 6

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, the device including an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body through which the molten metal is discharged in ribbon-like form from the body, the impact member having a substantially pyramidal shape, the apex of which is adjacent the vertical center of the body and the base of which cooperates with the body to form channels through which the molten metal flows, the body of the device having walls which diverge upwardly and outwardly from the bottom, and the impact member having a portion thereof shaped so as to be complementary to the slope of the walls whereby the impact member is held by gravity in its position within the device.

Claim 7

An apparatus according to claim 2, wherein a platform is positioned between the ladle and the mold, and wherein the means for raising and lowering the device are mounted on the platform.

Claim 8

An apparatus according to claim 4, wherein the platform is detachably connected to the ladle and is suspended from it during the pouring operation.

Claim 9

An apparatus according to claim 2, wherein the device includes an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body, through which the molten metal is discharged in ribbon-like form from the body.

Claim 10

An apparatus according to claim 4, wherein the raising means comprises an electric motor and sheaves mounted on the platform, together with cables which extend over the sheaves and are operatively connected to the motor and to the arrester device respectively.

Claim 11

An apparatus according to claim 6, wherein the impact member has a substantially pyramidal shape, the apex of which is adjacent the vertical center of the body, and the base of which cooperates with the body to form channels through which the molten metal flows.

Claim 12

An apparatus according to claim 1, wherein the top of the lower member is spaced from the bottom of the upper member and wherein the bottom of the lower member is adjacent the level of the molten metal within the mold.

Claim 13

An apparatus according to claim 2, wherein the level sensing device comprises a float which is adapted to engage the level of the molten metal within the mold and is carried by the body but is movable with respect thereto.

Claim 14

An apparatus according to claim 2, wherein the smallest outside transverse dimension of the body is at least 35 percent of the smallest transverse dimension of the cavity.

Claim 15

An apparatus according to claim 2, wherein said body is generally polygonal in configurAtion, in top plan, including a plurality of slab members secured in end-to-end relation and defining a passageway between the open top and bottom thereof.

Claim 16

An apparatus in accordance with claim 2, wherein said body includes a frame, and a lining of refractory material carried by said frame.

Claim 17

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, a level sensing device in the form of a thermocouple which is carried by the body and is sensitive to the heat within the mold, and means actuated by the thermocouple for indicating variations in the change in temperature in the mold in the region of the sensing device.

Claim 18

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, a level sensing device in the form of a thermocouple which is carried by the body and is sensitive to the heat within the mold, and means actuated by the thermocouple for indicating variations in the change in temperature in the mold in the region of the sensing device.

Claim 19

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, a platform positioned between the ladle and the mold, said means for raising and lowering the device being mounted upon the platform, and an indicator mounted on the platform for indicating the position of the device with reference to the level of the molten metal within the mold.

Claim 20

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow body of refractory material, said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle, to discharge it through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, a platform positioned between the ladle and the mold, said means for raising and lowering the device being mounted upon the platform, and an indicator mounted on the platform for indicating the position of the device with reference to the level of the molten metal within the mold.

Claim 21

An apparatus according to claim 2, wherein a level sensing device is carried by the body, and an indicating means is disposed exteriorly of the mold for indicating the position of the sensing device with reference to the level of the molten metal within the mold.

Claim 22

An apparatus according to claim 8, wherein the volume of the impact member above its base is at least equal to 7 percent of the volume enclosed by the walls of the body between the base and a horizontal plane passing through the apex of the impact member.

Claim 23

An apparatus according to claim 8, wherein the slope of the pyramidal portion is between 30* and 70* with respect to a plane passing horizontally through the base of the impact member.

Claim 24

An apparatus according to claim 16, wherein the level sensing device comprises a float which is adapted to engage the level of the molten metal within the mold and is carried by the body but is movable with respect thereto.

Claim 25

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow tubular body of refractory material said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle and to discharge it axially through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, a level sensing device carried by the body, and an indicating means disposed exteriorly of the mold for indicating the position of the sensing device with reference to the level of the molten metal within the mold.

Claim 26

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow tubular body of refractory material said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle and to discharge it axially through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, a level sensing device carried by the body, and an indicating means disposed exteriorly of the mold for indicating the position of the sensing device with reference to the level of the molten metal within the mold.

Claim 27

An apparatus according to claim 20, wherein a platform is positioned between the ladle and the mold, and wherein the means for raising and lowering the device are mounted on the platform.

Claim 28

An apparatus according to claim 21, wherein the platform is detachably connected to the ladle and is suspended from it during the pouring operation.

Claim 29

An apparatus according to claim 20, wherein the device includes an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body, through which the molten metal is discharged in ribbon-like form from the body.

Claim 30

An apparatus according to claim 21, wherein the raising means comprises an electric motor and sheaves mounted on the platform, together with cables which extend over the sheaves and are operatively connected to the motor and to the arrester device respectively.

Claim 31

An apparatus according to claim 23, wherein the impact member has a substantially pyramidal shape, the apex of which is adjacent the vertical center of the body, and the base of which cooperates with the body to form channels through which the molten metal flows.

Claim 32

An apparatus according to claim 25, wherein the volume of the impact member above its base is at least equal to 7 percent of the volume enclosed by the walls of the body between the base and a horizontal plane passing through the apex of the impact member.

Claim 33

An apparatus according to claim 25, wherein the slope of the pyramidal portion is between 30* and 70* with respect to a plane passing horizontally through the base of the impact member.

Claim 34

An apparatus according to claim 20, wherein the smallest outside transverse dimension of the body is at least 35 percent of the smallest transverse dimension of the cavity.

Claim 35

An apparatus according to claim 20, wherein said body is generally polygonal in configuration, in top plan, including a plurality of slab members secured in end-to-end relation and defining a passageway between the open top and bottom thereof.

Claim 36

An apparatus in accordance with claim 20, wherein said body includes a frame, and a lining of refractory material carried by said frame.

Claim 37

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow tubular body of refractory material said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle and to discharge it axially through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, the device including an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body, through which the molten metal is discharged in ribbon-like form from the body, the impact member having a substantially pyramidal shape, the apex of which is adjacent the vertical center of the body, and the base of which cooperates with the body to form channels through which the molten metal flows, and the volume of the impact member above its base being at least equal to 7 percent of the volume enclosed by the walls of the body between the base and a horizontal plane passing through the apex of the impact member.

Claim 38

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow tubular body of refractory material said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle and to discharge it axially through the bottom of the device into a pool of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, the device including an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body, through which the molten metal is discharged in ribbon-like form from the body, the impact member having a substantially pyramidal shape, the apex of which is adjacent the vertical center of the body, and the base of which cooperates with the body to form channels through which the molten metal flows, and the volume of the impact member above its base being at least equal to 7 percent of the volume enclosed by the walls of the body between the base and a horizontal plane passing through the apex of the impact member.

Claim 39

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow tubular body of refractory material said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle and to discharge it axially through the bottom of the device into a pool Of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, the device including an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body, through which the molten metal is discharged in ribbon-like form from the body, the impact member having a substantially pyramidal shape, the apex of which is adjacent the vertical center of the body, and the base of which cooperates with the body to form channels through which the molten metal flows, and the slope of the pyramidal portion is between 30* and 70* with respect to a plane passing horizontally through the base of the impact member.

Claim 40

A splash arrester for insertion into a mold during the pouring of a stream of molten metal from a ladle into the mold comprising, an arrester device having a hollow tubular body of refractory material said body being open unrestrictedly at the top and bottom and being adapted to encompass said stream of molten metal as it flows from the ladle and to discharge it axially through the bottom of the device into a pool Of molten metal formed in the mold during the pouring operation, means positioned above the mold and operatively connected to the device for raising and lowering it within the mold, the device including an impact member which is mounted within the body intermediate the top and bottom thereof and which coacts with the body to form spaced channels within the body, through which the molten metal is discharged in ribbon-like form from the body, the impact member having a substantially pyramidal shape, the apex of which is adjacent the vertical center of the body, and the base of which cooperates with the body to form channels through which the molten metal flows, and the slope of the pyramidal portion is between 30* and 70* with respect to a plane passing horizontally through the base of the impact member.