US2467970A

US2467970A - Ingot car and dumper

Info

Publication number: US2467970A
Application number: US693764A
Authority: US
Inventors: Faris Wood
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-08-29
Filing date: 1946-08-29
Publication date: 1949-04-19
Anticipated expiration: 1966-04-19

Description

April 19, 1949. w. FARIS INGOT CAR AND DUMPER 3 Sheets-Sheet 1 Filed Aug. 29, 1946 INVENTOR 8y W000 Far/s H15 ATTORNEY April 19, 1949. w. FARlS 2,467,970

INGOT CAR AND DUMPER Filed Aug. 29, 1946 5 Sheets-Sheet 2 Jig. 2.

INVENTOR W000 Far/s BY L H15 ATTORNEY April 19, 1949.

W- FARIS INGOT "CAR AND DUMPER 3 Sheets-Sheet 3 Filed Aug. 29, 1946 W000 For H/J ATTORNEY Patented Apr. 19, 1949 UNITED STATES PATENT OFFICE ,4

INGOT CAR AND BUMPER Wood Full, mm, M0 Application August 29, 1948, Serial Nata/I64 greatly reduced and delays in the operation of the blooming mill due to breakdown of such ingot car and dumper are almost entirely eliminated.

These and further objects of the invention will be more readily apparent in the following description.

In the transfer of heated ingots from the soaking pit to the receiving conveyor roll table of the blooming mill it has been customary to employ an ingot car having at its forward end a pivoted ingot holder or pot in which the ingot is placed in upright position after being lifted out of the soaking pit by the charging crane. The ingot car is then advanced at an appreciable speed toward the end of the roll conveyor until the pivoted ingot holder contacts a fixed bumper. The momentum of the car and ingot function, when the ingot holder contacts the bumper below its pivotal axis, to overbalance the ingotand holder and, in effect, to throw the ingot upon the table. It will be appreciated that the shock to the ingot car and its parts and also to the bumper is most severe, since the ingot itself will ordinarily weigh in the neighborhood of 18,000 pounds. Such shock is necessary to the operation, since it is relied upon to tip the ingot, in spite of its being placed an appreciable distance on the stable side of the pivotal axis of the holder. Then, too, such design requires that the ingot after having attained a horizontal position shall fall a distance on the order of 18 inches onto the table.

The present invention provides an ingot car and dumper which functions to turn the ingot from a vertical to a horizontal position and to deposit it upon the conveyor table in a manner 4 Claims. (CI. 21442) since the ingot fails a relatively short distance tlliereon after it has reached a horizontal posi- The invention is illustrated in a preferred em-- bodiment in the accompanying drawings, in which:

a Figure 1 is a view in side elevation of a portion of the apparatus including the ingot car and ingot holder, the lngot holder being shown in upright loaded position;

Figure '2 is a view in plan of the apparatus shown in Figure l;

relatively free from shock, the operation being carried out independent of the speed of advance of the ingot car and not depending upon any impact between such car and a fixed member, such as a bumper. Thus, the wear and tear upon the car and its attendant parts is much less than Figure 3 is a view in vertical cross-section throughthe portion of the apparatus in the vicinity of the ingot holder, the ingot holder bein shown at the dumping station and tipped to discharge the ingot in horizontal position on the conveyor table.

The ingot car 2 of the present invention is designed to run upon tracks 4 from aposition adjacent a soaking pit (not shown) to a position in which its forward end lies adjacent to the. rear end of the blooming mill receiving conveyor table, indicated generally at 6, such conveyor table includes multiple parallel rolls 8, power driven by means not shown.

The ingot car is provided with two wheels III on a forward truck and two wheels II on a rear truck, the forward wheels being driven by means of an electric motor I2 driving into the reducing gear box it through drive shaft II. The output shaft from the gear box drives the axle, to which wheels II are afllxed, through the medium of the bevel gear and pinion set l8, more clearly shown in Figure 2. The motor I2 is equipped with a solenoid brake 20. 'Control of the motor in the forward and reverse directions, and the application and disengagement of the solenoid brake. are eifected by means of. conventional motor starting, stopping and braking controls (not shown).

The ingot car is provided on its forward end with two spaced parallel arms 22 projecting generally parallel to the length of the car and to the tracks 4. The forward ends of arms 22 are provided with bearings 24 which support ingot holder 26 through the medium of the trunnions 28 afllxed thereto. The ingot holder is in the form of a shallow box having an open rear side, so that an ingot 32 in upright position may be stably placed therein when the ingot holder is in the upright position shown in Figure 1. The trunnions 28 are positioned generally equidistant from the by contact of its forward face with the horizontal cross member 34 at the upper edge of the forward wall of the holder.

To reduce shock to the ingot car when the ingot is charged into the holder, and to restrict movement of the holder in a counterclockwise direction about its pivotal axis, there is provided on the car a forwardly extending shelf 36 which carries spaced aligned springs 38 retained thereon by suitable holding means engaging their lower ends. The rear bottom edge of the ingot holder is provided with a foot 40 extending thereacross, such foot resting upon the upper ends of springs -38, which, together with trunnions.

28 and bearings 24, and guide wheels 44, presently to be described, bear the weight of the holder and ingot. It will be apparent that springs 38 are compressed to cushion the holder when an ingot is. charged therein.

Positioned on the forward face of the ingot holder 26 near the opposite sides thereof are two spaced parallel arms 42 projecting in a forward direction. On the forward ends of such arms are-mounted the guide Wheels 44 riding upon the spaced parallel fiat tracks 46 which extend back a suflicient distance to support the ingot holder in upright position through the entire extent of travel of the ingot car except for that portion immediately adjacent to the roll conveyor table. At such portion there is provided an inclined guide pocket 46, having inclined tracks made up of hardened inserts 50 lying in the same vertical planes respectively as the two tracks 46. Two upper guide members52, which are parallel to each other and to members 50, and are correspondingly spaced, define a passage receiving the guide wheels 44, as shown in Figure 3, with but a slight amount of play. The guide pocket is made up, as will be apparent, by the spaced parallel plates 56 which are affixed to the ends of the table beams 54, on one end, and to the end ofthe structure supporting tracks 4 and 45, on the other.

When the ingot car is advanced toward the conveyor table to such an extent that Wheels 44 begin to travel down the inclined track members 50, the ingot holder tips gradually, since the. centers of gravity of the holder, and of the holder and ingot, lie to the right of the trunnions, thereby tilting the ingot holder and the ingot held therein. Travel of the car is slowed at this point orbefore it, so that the car comes to a stop when the holder is fully tipped. There is thus no impact between the ingot car and a fixed member, such as a bumper, and the ingot is shifted smoothlyfrom a substantially vertical position to a horizontal position, tending generally to pivot about its lower forward edge during such travel. During this time, of course, the ingot car continues to advance and the ingot holder continues to turn in a clockwise direction. The ingot does not, therefore, fall freely but is restrained to a great extent in its travelas it approaches the rollers 8, by the cross member 34 of the inset holder. Thus the shock upon the conveyor table is relatively small as compared to that inherent in the described prior designs.

After discharge of the ingot from the holder the car is reversed in its direction of travel. Thereupon the guide wheels 44 travel up and out of the guide pit, restoring the ingot holder to its upright position when they reach the flat level track 46.

The delivery conveyor table is provided with an inclined guard 68 to deflect scale falling of! the ingot when it is deposited upon the table from the guide tracks and guide pit for wheels 44. The guide" pit is provided with an opening (not shown) in the bottom thereof, whereby it may be flushed when necessary by use of high pressure water sprays.

Having thus fully described and illustrated the preferred embodiment of the improved ingot car and dumper I desire to claim as new the following.

What I claim is:

1. In the combination of a conveyor table and an ingot delivery car and dumper travelling toward and away from the table to convey an ingot in an upright position and then to tilt it and deposit it in horizontal position on the table, the improved ingot car and dumping mechanism which comprises an ingot holder for supporting an ingot, said holder having a bottom upon which the bottom end of the ingot rests when the holder and ingot are in upright position, means mounting the holder on the forward end of the car confronting the table, said holder mounting means permitting tilting of the holder about a horizontal pivotal axis from a horizontal to a vertical position, resilient stop means projecting from the forward end of the car adjacent the holder, guide means on the holder, and a longitudinal guide on a fixed part of the supporting structure, the resilient stop means, guide means and guide cooperating to maintain the holder upright throughout its travel except in the portion adjacent the table and to tilt its top portion toward the table when it reaches a location adjacent the table, said guide comprising a horizontal straight portion remote from the table and aligned therewith and an inclined portion adjacent the table.

2. In the combination of a an ingot delivery car and dumper travelling toward and away from the table to convey an ingot in an upright position and then to tilt it and deposit it in horizontal position on the table, the improved ingot car and dumping mechanism which comprises an ingot holder for supporting an ingot, said holder having a bottom upon which the bottom end of the ingot rests'when the holder and ingot are in upright position, means mounting the holder on the forward end of the car confronting the table, said holder mounting means permitting tilting of the holder about a horizontal pivotal axis from a horizontal to a vertical position, a shelf projecting from the forward end of the car beneath the rear lower edge of the holder, means on such edge of the holder normally spaced from the shelf when the holder is forming a stop means cooperating with the shelf to maintain the ingot in upright position, resilient means positioned between the shelf and the stop means on the holder, guide means on the holder, and a longitudinal guide on a fixed part of the supporting structure, the guide means conveyor table and and guide cooperating to maintain the holder upright throughout its travel except in the portion adjacent the table and to tilt its top portion toward the table when it reaches a location adjacent the table, said guide comprising a horizontal straight portion remote from the table and aligned therewith and an inclined portion adjacent the table.

3. In the combination of a conveyor table and an ingot delivery car and dumper travelling toward and away from the table to convey an ingot in an upright position and then to tilt it and deposit it in horizontal position on the table,

the improved ingot car and dumping mechanism which comprises an ingot holder for supporting an ingot, said holder having a bottom upon which the bottom end of the ingot rests when the holder and ingot are in upright position, means mounting the holder on the forward end of the car confronting the table, said holder mounting means permitting tilting of the holder and ingot supported therein about a horizontal pivotal axis lying closely adjacent a vertical plane transverse to the line of travel of the holder and through the center of gravity of the ingot from a horizontal position to a vertical position of the holder, guide means on the forward end of the holder, a longitudinal guide on a fixed-part of the supporting structure for the car, a shelf projecting from the forward end of the car beneath the rear lower edge of the holder, stop means on such edge of the holder normally spaced from the shelf when the holder is in upright position, the shelf and stop means cooperating to maintain the ingot in upright position, and springs positioned between the shelf and stop means; the relationship of the parts being such that when the ingot holder is in upright position the springs exert a material force between shelf and 'stop means, thereby cushioning the holder and insuring maintenance of the guide means in contact with the guide, the guide means and guide sustaining a portion of the weight of the holder and ingot and cooperating to maintain the holder upright 1 throughout its travel except in the portion ad-' jacent the table and to tilt it toward the table when it reaches a location adjacent the table, said guide comprising a horizontal straight portion remote from the table and aligned therewith and a portion inclined downwardly toward the table adjacent the table.

4. In the combination of a conveyor table and an ingot delivery car and dumper travelling on tracks toward and away from the table to convey an ingot in an upright position and then to tilt it and deposit it in horizontal position on the table, the improved ingot car and dumping mechanism which comprises an ingot holder for supporting an ingot, said holderhaving a bottom upon which the bottom end of the ingot rests when the holder and ingot are inupright position, the said bottom of the holder being so constructed and arranged as to tilt the ingot somewhat toward the table when the holder is upright, means mounting the holder on the forward end of the car confronting the table, said holder mounting means permitting tilting of the holder and ingot supported therein about a horizontal pivotal axis lying closely adjacent but to the rear of a vertical plane transverse to the line of travel of the holder and through the-center of gravity of the ingot from a horizontal positionto a vertical position of the holder, guide means comprising a forwardly and downwardly directed arm on the forward end of the holder, spaced vertical guide wheels supported on the forward end of such arm, parallel longitudinal guides along which the guide wheels travel on a fixed part of the supporting structure for the car, the car having a shelf projecting from the forward end of the car beneath the rear lower edge of the holder, stop means on such edge of the holder normally spaced from the shelf when the holder is in upright position, the shelf and stop means cooperating to hold the ingot in upright position, and springs positioned between the shelf and stop means, the relationship of the parts being such that when the ingot holder is in upright position the springs exert a material force between shelf and stop means, thereby cushioning the holder and insuring maintenance of the guide means in contact with the guide, the guide wheels and guides sustaining a portion of the weight of the holder and ingot and cooperating to maintain the holder upright throughout its travel except in the portion adjacent the table and to tilt it toward the table when it reaches a location adjacent the table, said guides each comprising a horizontal straight portion remote from the table and aligned therewith and a portion inclined downwardly toward the table adjacent the table, the guide wheels on the holder lying a substantial distance forward of the pivotal axis of the holder, the inclined portion of each of the guides including parallel top and bottom members between which the corresponding guide wheel is received and positively guided.

WOOD PARIS.

REFERENCES CITED The following references are of record in the file of this patent:

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