US1785757A

US1785757A - Apparatus for jarring ingot molds

Info

Publication number: US1785757A
Application number: US356471A
Authority: US
Inventors: Young Lafayette
Original assignee: Laclede Steel Co
Current assignee: Laclede Steel Co
Priority date: 1929-04-19
Filing date: 1929-04-19
Publication date: 1930-12-23
Anticipated expiration: 1947-12-23

Description

Dec. 23, 1930. YOUNG APPARATUS FOR JARRING INGOT HOLDS Filed April 19. 1929 Patented Dec. 23, 1.930

PATENT OFFICE UNITED STATES LAFAYETTE YOUNG, or ALTON, rumors, assrenon TO LAcLEnE sr'EaL eommmr, or s'r. LOUIS, mssouar, A ioonroaamon or mssoum APPARATUS FQB JARRING INGOT HOLDS Application filed April 19,

This invention relates generally to arring apparatus, and more specifically to an improved apparatus for jarring ingot molds, the predominant object of the invention being to provide an improved apparatus of this type whereby a single ingot mold of a plurality of ingotmolds mounted on a truck or other support may be jarred or vibrated independently of the associated molds and of the support, 1

As is very well known in the art of ingot casting, sound ingots which are substantially free from slag inclusions may be' obtained by jarring the ingot molds during the operation of pouring the metal'into said molds.

This jarring has the efl'ect of causing ebullition in the metal within the molds whereby the gases and non-metallic inclusions rise to the top of said body of metal, thus providin for freeing from the body of metal sai gases and undesirable non-metallic inclusions,-and increasing the density of the resulting ingots.

Prior to this invention a common method of jarring ingot molds involved arranging one or more molds on a suitable support, such, for instance, as an ingot car, and jarring the combined mold or molds and support. This method resulted in a great waste of power, in that the support, which in most cases was of substantial weight, was needlessly-jarred. Also, when the support of the ingot molds jarred in accordance with the method just referred to was in the'form of an ingot car, the continued jarring of said car reduced the extent of the period of usefulness thereof.

In view ofthe disadvantages encountered in connection with the method of jarring ingot molds as described above, I have devised the apparatus disclosed herein, which, briefly stated, involves providing; means for" arrin g each individual mold independently pfthe support and independently of the associated molds. Because of this arrangement, only suflicient power need be exerted against each individual mold to lift said mold ,and the- .body of metal therein and jar the same slight- 1y, whereby an economy of power is efiected. Also, in the case where less than all pf a plurality of molds on a support are being used,

1929; swarm. new.

only those molds which are actually receiving metal need be jarred instead of all of said molds togethenwith the support therefor, as heretofore.

Another very important feature of the invention arises from the fact that my improved apparatus provides for elevating an ingot mold and applying sufficient force to said mold while it is's'o elevated to jar or vibrate same. Because of this arrangement the jarring or vibration of the mold is more effectively performed, because'of the absence of supporting elements which would inter-. ferewith the 1arring or vibration of the mold.

Flg. 1 is a view partly in cross-section and partly in elevation showing my improved jarrmg apparatus.

Fig.2 .is a side elevation of the apparatus shown in Fig. 1, parts of the air' cylinders being broken away to conserve space.

In the drawing, wherein is shown one embodiment merely of the invention, A designates my improved apparatus generally, said apparatus including a support B which in the illustrated embodiment of the invention takes the form of an ingot car, although it may,.bf course, be in the form of any other typeof pprtable or stationary support which would suitable for the purpose. The ingot Gar Bis provided with a suitable bed plate 1, suitably supported by side and end members 2, and said s1de and end-members are in turn supported upon under trucks C, which include car wheels ,3 which operate on rails 4, so that the ingot'car may be transported from place to place. Secured to the bed plate 1 of t e ingot c'ar B at the lower face thereof and extended downwardly from said bed plate, is a plurality of guiding members 5,

the purpose of which will be su sehuentlypointed out, the openingg'thro'ug each of said gulding members being alined with an 1 aperture 5' formed through the bed plate 1.

Mounted on the bed plate 1 of the ingot car is a plurality of mold stools 6; eachindividual one of which is ositioned immediately above one of the guiding members 5. Each stool 6 is provided with a downwardly projected extension 7, said extensions being. either formed integral with the associated which a ram ll is arranged for vertical move-' pair of conductors 21, whereby compressed stools or' suitably attached thereto. The stools 6 each support an ingot mold 8- of ordinary construction, said ingot molds being loosely supported by the-stools and the contact between said elements beingsuili'ciently close to prevent seepage of metal between the molds and the associated stools. 'llhe downwardly projected extensions 7 are movably supported in the guiding members 5 and are of such length that the lower ends thereof are located in a horizontal plane slightly below the axles 3 of the trucks of the ingot car, as shown clearly in Fig. l.

Supported vertically between the rails d is a plurality of supporting elements 9 which are so spaced longitudinally of'the traclrway provided loy said rails that the ingotcar B may he moved to a position on said rails where the downwardly projected entension's 7. of the stools fiare-alined vertically with said supporting elements. Each, of the supporting elements Sis provided with an opening 10 formed longitudinally therethrough, in

ment, the upper end of said ram being adapted to contact with the lower end of the extension 7 positioned thereabove, as shown in Fig. '1. At the lower end portion-of each supporting element 9 is positioned a suitable compressed air hammer 12, which is soassociated with the cooperating ram 11 that said ram mayloe caused to vibrate vertically when the air hammer 12 isoperated. l3 designates conductors associated with each of the compressed air hammers 12 for conducting compressed air to and from said compressed air hammer.-

lhe su porting elements .9 are each provided wit an elongated opening ll through which an-end portion of a lever. 15 passes, said lever at the end thereof which is extended into the supporting element 9 being ivotally secured to the ram 11 Within sai supporting element as indicated at 16. The le-. vers 1.5 are all iulcrumed on theshaft orhard 17, and at the end of each-of the leversopposite to the end thereof which is pivoted to the associated ram 11 said lever is pivotedto a piston rod 18 associated with'a piston-'19 ar ranged for'reciprocal movement ina com pressed air cylinder 20, The compressed air hylinders each have associated t erewith' a air may he introduced into thecylinder 20 at ppposite sides of the piston 19. i a K lln the operational my improved jarring, apparatus, the ingot car B with the moldsmounted thereon is moved to a position where the extension 7 of an mold stools 6 on said-car are positioned. immediately "above the supporting elements'i), The pouring of themetal into the mold is then commenced, and i1'nmedilately compressed air is introduced mto the cylinders'20tocause the rams 11 to be ole-- vated. On upward movement of the rams 11 the upper ends thereof will contact withthe weaver lower end of the associated extensions, 7, whereby these extensions, together with the stools. and molds associated therewith, will likewise be elevated until the lower faces of said stools are spaced apart from the top face of the hed plate l of the ingot car. When the molds have been so elevated and as the pouring of metal into said mold tontinues, the compressed air hammers 12am placed'in operation, with the result that repeated intermittent blows are directedby said compressed air hammers against the lower ends of the rams ll. These repeated blows are transmitted by the rams 11 to the extensions 7, and by said extensihns to the ingot molds, whereby said molds are jarred or vibrated.

the cylinders may be -correspondingly increased to maintain the molds in their elevated positions. lt is obvious, therefore, that there is absolutely no waste of power as the pressure within the cylinders 20 maybe varied hy the operator, so that only sufficient power is present to perform the required work.

uDue the fact that the molds are held in elevated positionshy the mechanism assoeiated with the compressed air cylinders, it is plain that the jarring mechanism, the compressed air hammers 12, do not do any great amount of lifting, and hence all of the power exerted hy the compressed air hammers is utilized in jarring the molds. Also, because of this jarring action-taking place when the molds are balanced in an elevated position, said jarring operation is very efl'ectively performed.

'I claim: 1

1. i l jarring apparatus for an ingot mold mounted on a support, comprising means for elevating the ingot mold above its normal support, and means independent of said elerating means for jarring said mold while it is so elevated.

2. jarring apparatus for an ingot mold mounted ona support, comprising means for" elevating the ingot mold above its normal support, and means independent of said elevatlng means for transmitting repeated light blows to said mold for jarring same the last mentioned means comprising aQcompressed air hammer. I I r 3. A garring apparatus for an ingot mold mounted on a support, comprising means including a compressed air cylinder having a reciprocatory piston arranged therein for to one end of which said verticallly elevating the ingot mold above its normal support, and means independent of said elevating means forjarring said mold while it is so elevated.

4. A jarring apparatus for an ingot mold mounted on a support, comprising means for elevating the ingot mold above its normal support, said means including a vertically movable elementarranged to contact with a portion of said ingot mold and associated with means for moving said element vertically at will, and means for transmitting repeated light blows to said vertically movable element for the purpose of jarring said ingot mold.

5. A 'arring apparatus for an ingot mold mounte on a support, comprising means for elevating the ingot mold above its normal.

support, said means includinga vertically tension on the mold extended through and arranged for vertical movement withm said guiding member, means for elevatingsaid mold by applying upward ressure against said extension, and means or jarring said mold by transmitting repeated light blows to said extension.

' In testimony that I claim the foregoing I hereunto 'aflix m signature.

LAFAYETTE YOUNG.

movable element arranged to contact with "a portion of said ingot mold, a pivoted lever to one end of which said vertically movable element is pivotally attached, and means at the opposite end of said lever for raising and lowering the first mentioned end of said lever, and means for transmitting repeated light blows to said vertically movable element for the purpose of jarring said ingot mold. I

6. A jarring apparatus for an ingot mold mounted on a support, comprising means for elevating the ingot mold above its normal support, said means including a vertically movable element arranged to contact with a portion of said ingot mold, a pivoted lever movable element is pivotally attached, an means at the opposite end of said lever including a compressed air cylinder provided with a reciproca-tory piston cooperatively associated with said lever for raising and lowering the 1 to one end of which said vertically movable element is pivotally attached, and means at the opposite end of said lever including a compressed air'c'ylinder provided with a reciprocatory piston cooperatively associated with said lever forraising and lowering the first mentioned end of said lever, and means comprising a compressed air hammer for transmitting repeated light blows to said vertically movable element for the purpose of jarring said ingot mold.

8. A jarring apparatus for an ingot mold,

comprising a su port, .a guiding member r1g1 ly associate with said support, an ex-