US730274A

US730274A - Ingot-casting apparatus.

Info

Publication number: US730274A
Application number: US12428602A
Authority: US
Inventors: Horace W Lash
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-09-22
Filing date: 1902-09-22
Publication date: 1903-06-09
Anticipated expiration: 1920-06-09

Description

NA.' 79.0,:z'74.l l A PATENT'BDJUNB 9', 1903. y yH. .W.ALAsH.Ay

INGoT CASTING APPARATUS.

ArrLroA'rroN funn snrT. z2. 1m. xo MODEL. f Y Y a SHEETS-sanmz.

No. 730,274. i I A'.r.B1.\ITE1)` JUNE 9, 41903,.

v11. W. LASH.

INGOT CASTING APPARATUS.

` APPLIGATIoN FILED snr'rfzz. 1902. No Monat.. 4 l asuma-SHEET 3.

No. 730,274; Y

UNITED STA-Tas Patentedfxune 9, 1963.

HORACE W. LASHQOF CLEVELAND, OHIO.

lNGOT-I'CASTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 730,274, dated June 9, 1903. Appiicmon met' settember 22,1902, smal 110.124.386. (No linden' To a/Z whom t may concern: Be it known that I, HORACE W. LASH, of Cleveland, Cuyahoga county, Ohio, have invented a new and useful Ingot-Casting Apparatus, of whichthe following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation, partly in section, showing a group of small ingot-molds arranged for bottom casting and provided with my invention. Fig. 2 is a horizontal section on the line II II of Fig. 1. Fig. 3 is a vertical section on the line III III of Fig. 2.

Fig. 4 is a plan view of one of the shear-bars, and Fig. 5 Vis a cross-section showing the shearing ofthe ingots.

The object of my invention is to provide means for separating ingots from the runners or sprues which are formed in bottom casting; and it consists in providing the bottomv plate with shearbars which are rammed in the sand immediately under the molds in line with the runners and adjacent to the bottom of the molds, so that when the ingots are cast and while the metal is still in a liquid or semiliquid condition the shear-bar can be moved so as to separate the runners from the ingots and renderl the ingots freely removable.

In the drawings I show a stool formed of three horizontally divided portions. The lower portion or bottom 'plate 2 is preferably made in two halves bolted together for con# venience in removing steel in case it iss pilled`V The nowel 3, forming the intermediate.

over. section, contains. th'e baseportion, of silica, sand, or other material, andthe cope et is provided with ythe projecting guides 5, between.l

This cope is 1 'a mold having a runner enteringat the botwhich the ingot-molds areiset.

preferably provided with steadypins,as inl the ordinary-iiask, and is also provided with projecting lips on the under side'to aid in lifting the sand when the-cope is'lifted'to draw out the pattern. It is also iitted with clamps and key-bolts 6 to fasten the central runner down and prevent its being lifted by the pressure of gas or of the molten steel. Each of the three parts is preferably provided with oppositely-projecting trunnions 7 7 to allow handling and lifting by a crane in turning, drawing the pattern, &c. The fountain upwardly-projecting gates or feed-openings In molding the runners leading into thev bottom of the mold-I ram in the sandshearbars 1l 1l, using, preferably, one shear-bar for each cross-line of molds. These shearbars are shown in Fig. 4. and consist of metal bars having openings l2 therein adapted to register with the runner-openings of the molds and are so set that they can be moved longitudinally.

When the steel is poured into the central fountain, it passes throughthe runners and rises in and fills the molds, and the ingots and the runners then constitute one integral casting. It is very important that the ingots be easily detachable from the runners in order to render the operation of casting economical and practical. This I eect by the shearbars, for when the casting is completed and while the metal is still in a liquid or semiliquid condition these shear-barsare moved forward either by the stroke of a'sledge or ram or by a pushing force applied `by suitable power. The bars then act as shears and cut o the runners which extend through the openings 12. ners and can be removed easily from the molds. Y

-'Within the scope of'iny invention as dened in the claims the construction and arrangement of the'moldsand of the runners maybe varied by those skilled in the art, since my invention relates, broadly,to the shearingbars. 'y

IclaimY l., Apparatus forcasting ingotscomprising tom, and a shear-bar underthe mold in prox- Aimity to the'runner, adaptedfto be moved to sever the runner; substantially'as described.

The ingots are thus freed from the run- 2. Apparatus for casting ingots comprising a series of molds having sand-molded runners extending into the bottom of lthefmolds for bottom casting, and a shear-bar rammed in the sand and adapted to be moved to sever the runners;` substantially as described.

3. Apparatus for casting ingots,comprisin g a series of molded runners extending into the TOO bottom of the molds for bottom casting, and shear-bars rammed in the sand or other material and adapted to be moved to sever the runners, each shear-bar having a plurality of shearing portions adapted to register with a corresponding number of molds; substantially as described.

4. Apparatusforoastingingots, comprising a mold having a runner entering at the bottom, and a shear-bar under the mold in proximity to the runner, adapted to be moved `to sever the runner, said shear-bar consisting of a metal bar With openings therein for surrounding the runners; substantially as described.

In testimony whereof I have hereunto set my hand.

HORACE W. LASI'I.

Witnesses:

H. D. SMITH, J. C. CROMWELL.