US1039725A

US1039725A - Method of and means for stripping ingots.

Info

Publication number: US1039725A
Application number: US62368111A
Authority: US
Inventors: Emil Gathmann
Original assignee: GATHMANN ENGINEERING Co
Current assignee: GATHMANN ENGINEERING Co
Priority date: 1911-04-27
Filing date: 1911-04-27
Publication date: 1912-10-01
Anticipated expiration: 1929-10-01

Description

'UNITED sTATns PATENT oFFicn. f

EMIL GATHMANN, OF N EW YORK,

N. Y., ASSIGNOR TO GATI-IMANN ENGINEERING COM- PANY, 0F NEW YORK, N. Y., A CORPORATION OF MAINE.

1vrrxrnon or AND MEANS ron STRIPPING INGoTs'.

Specification ofetters Patent.

Application led April 27, 1911.` Serial-No. 623,681.

To all whom 'it 'may concern: y

Be it known that LAEMIL GATHMANN, a citizen of the United States, residing in the city, county, and Stateo-f NewYork, have invented certain new and useful Improvements in Methods'of and Means for Stripping Ingots, of whichthe `following' is a.

No. 921,972 of May top and the practice has been' 1n4 such cases ljeetionasble pipes vices which raise the position it occupiedto reverse the mold with its contained ingot,

c'. e., to turn the mold bottoml side up and then liftthe mold This method of that when early vertically from the ingot: procedure has the objection are produced owing to the fact that the liquid or unsolidied metal which remains at t-he top or larger end of the ingot before the the reversal of rise toward the, upper or smaller end of the ingot and cause the formation of pipes inthe body `ofthe ingot. By my present invention I avoid this reversal of the ,mold

and thus prevent the formation 'of low deep' seated pipes. This I accomplish by providing the ingot at its upper or larger end with means adapted t engage lifting' deingot out ofthe mold While the latter remains undisturbed in the while being teemed.` It 1s also a lcommon practice in molds of this class to make 'the mold lin two sections, that is to say, the mold is longitudinally divided and thel sections are l secured together by bolts or the nlike and after the rringfot is' cast the bolts are removed and the mold sections Withdrawn. This'avoids the reversalof the mold but this onstruction is objectionable in some cases s' being-relativelyexpensive and necessitating the expenditure of considerable time and labor in separating and assembling the mold parts, while by my inventhe mold chamber is larger at the' stripping is attempted ob-` mold'is reversed, will after, the mold cause a cavity toy -vided with a boss a thereof,

scribed tion the mold may be made in one single casting without any deformation of the body of the ingot and ingot. p v

In the accompanying drawings, Figure l shows a vertical central section through a mold with an ingot therein and provided with devices which form in the top or crop endof the ingt means adapted to engage devices for lifting the ingot from the mold chamber. Fig2`shwsa vertical central section through the .upper portion of a mold and an ingot and illustrates how lifting devices may be applied to the larger end chamber without in any way disturbing theA a modification in which mold. Fig. 3 shows a recess is formed in the centrgl portion of without any reversal of the PatentedOct. 1, 1912. d

of the" 'ingot to lift it verticallyfrom the mold the crop end of the ingot which is adapted to i receive lifting devices. ',Fig. 43 is a view similar to Fig. 3 but showing'in addition how lifting devices are applied to the central recess of the ingot.

The meid is made 0f Suitable man with.

a mold chamber-largerat top than-at bottom and the lower portion A is made relatively thick, while the upper Vportion or neck N is made relatively thi-n in order that the lo'wer portion of the ingot may cool more rapidly thanthe upper portion in the mannerA described in my`v patent above mentioned and in other prior patents `granted to me. TheV bottom'of the mold may be proadapted to rest in the socket bof a stool B.' f I prefer ,to teem the mold at` the top. The walls may be ribbed inthe manner described in my former patents, but my invention is not necessarily limited to ribbed molds because'in some casesd by. properly proportioning the thickness vof the mold Walls to promote heat, radiation and absorption in the lower portion of the mold and to-retard heatA radiation at the top piping may bei greatly reduced and confined in my former patents.A

AIt'is Well understood that in casting v'ingotsthe upper end thereof is usually cut or" or cropped. Often this cropped end vconstitutes a considerableortiol of the ingot. By the inventions descri ed'in my prior p atents the piping is confined to small portion at the top of the to the upper-end of the ingot as dea i relativelyl ingot so that