US855655A - Ingot-mold. - Google Patents

Description

No. 855,655. PATENTBD JUNE 4, 1907.

F. MOMAHON.

INGT MOLD. v

APPLICATION FILED JUNE 23,1906.

ATTOR/l/EVU dlesex trated 'in the accompanying drawing, lin

pended on the sling. in

i ottom. Fig. 3, is a similar view, showing the ed to the body, compressin` lever mechanism UNITED STATES Specification of Letters Patent. A Application neuw 23.1906. serial N9. 323,152.

To all whom it may concern:

Be it known that I, FRANCIS McMAnoN, residing at Cambridge, in the county of Midand State of Massachusetts, have invented a new and Improved Ingot-Mold', of which the following is a specification.

This invention, which relates generally to means for forming steel ingots,` more particularly seeks to provide an improved mold havingcombined therewith a sim le and ef-. fective mechanism for ap lying a eavy and continuous pressure on t e molten metal as it is congealing. f

My invention, in its generic nature, comprehends a mold, and means combined therewith for effecting a constant and powerful pressure on the top of the metal while in its iquid state, said means bein actuated by the weight of the moldsA andD the ingot orv metal contained therein. y 4

My invention, in its more complete nature, comprises a mold body having a taper metalreceiving bore, a bottom detachably connectconnected to the upper end of said body, operable under the Weight ofthe mold and ingot during the process of con ealing the ingot, and a sling having means or detachably connecting the'sling to the mold to tiltably suspend the said mold.

j In its more subordinate features, my invention consists incertain details of construction and peculiar combination 'of parts, all of which will be .hereinafter fully explained, pointed out in the appended claims and illuswhichzi Figure 1, is 'a side elevation, partially in section, of my improved construction of mold and ingot compressing means, hung on the suspended sling. Fi 2, isa side elevation, showing the mold wit the ingot tiltably susposition to remove the mold suspended on the sling, the latter being connected to the compressinglevers which n now act as ejectors for forcingthe ingot out of themold. Fig. .4, is a horizontal section `on the line 4-4 on Fig. 3. Fig.A 5, is a top' planlview of the mold and the'compres'smg.l

devices. Fig. 6, is a detail view ofthe sling.

In carrying out my invention, I employed a mold body 1, `havin the usual external shapeand provided wit a tapering bore 1.0, the upper or small end of whic terminates 1n a contracted or neck portion 11 that jolns I 4iwith the r'educed throat or pouring lopening 12, which, aslshown, is square in cross sectionv butmay be of any other desired shape. The

bottom of the mold tom is formed with or seat 12b,

isvopen and the said bota shallow pendent flange that engages the solid bottom Patented .rane t, 19e?. f

piece 13, which,whenfittcdin lace, is firmly held against'the seat' l12"'by t e'clamp bolts 14 that pass up through the o posite edgesof the bottom piece-'131.and..t efz'lateral base iflanges 12s' formed on the lowerend of the mold body, said bolts 14 being secured by the nuts 15,' as shown. By providing the seat portion 12b, space 16 is provided between `the ottom I4 and the lower' end of the mold' clay to prevent any bod for holding packing outow of the metal. y

At the upper` end, the mold body 1 has a -transverse socket 16a that bisects the pourl mg opening, and in the opposite ends of which .are mounted the4 com ressing devices, consistingvof the short l1nks 20-20 pivotally mounted on the cross bolts'21-21, ably fitted inthe upper 'end of the mold to cross the socket 16a. The links 20 are of suflicient length'to extend above the up er end of the mold and'to ea'ch set of said lin 20 is fulcrumed a combined compressing and ejecting lever 30,-each of whichconsists of a arm 31 having a transverse aperture 32 at the outer end and an inwardly bent cam or crank like end 33, saidjend 33 being so formed that when the levers are at their operative position, the said ends project down into the pouring openin ofthe mold. y y

y reason o the peculiar connection and construction of the compression levers and links, they can be readily swung back out of the Way, to thepositionvindicated in dotted lines in Fig. 3 during the pouring of the metal. 40 desi ates apresser or follower block, which is p aced on the and against Which-thel eversexert ressure during the operation of. cooling an setting the ingot.

long" ulpp'er'end of the ingot detaching two gled"and apertured to receive the. clamping nuts and bolts as's'lrownf lshaped members, eachofwy Aich has a trunnion-stud 51y and their-endsare anif -The sling or mold'` suspension means,. tl 1'e y construction of. which lseho'wn 1n.-deta'1l '1n l l64 swiveliy edn-z nected thereto by the link 65, and formed with a hook 65 for engaging the apertured ends of the compressing levers and with.

shown in dotted lines on Fig. 3 the molten steel is poured from the ladle into the mold or crucible, which, in practice, is lled to Within six inches of the top of the small end thereof. As the small end cools and sets quicker than the remainder, the presser block is applied while the bulk of the cast is still in a molten state. The compressing levers and the sling are thenadjusted, and then by the aid of -the power crane, the mold or crucible with the ingot is lifted ,and the sling hung upon a rack or other support indicated by 93 in the drawing, where it remains during the cooling process, thus utilizing the weight of the crucible and the ingot,

for acting on the compressing levers for compressing the ingot, which el'ects a powerful and continuous pressure on the ingot during the time it is congealiiig in the mold, which expels all the gases troni-the ingot and practically reduces the danger of blow holes re- -maining in the finished product to the miniefl'eetinp muni, and since the bore of the mold is tapering, 'prevents the steel from binding on the walls of the crucible or mold while shrinking during the cooling process. After the ingot is cooled and set, the cruciblc or mold is lowered to the iloor, when the sling is discounected from the v compressing levers and hooked on to the trunnion frame, when the crane is actuated to lift the mass sullicient to permit of turning the mold to allow for removing the bottom, when it is again lowered to the licor.` The sling is now again connected to the compressing levers, and the massis again raised by the crane, which now causes the lever devices to act as a means for ejeoting or starting the ingot from the mold.

By reason of casting the metal through tho small end of the mold and holding the mass within the mold while a powerful pressure is applied to the small end of the ingot, an ingot perfect its entire length is produced, thereb f a great saving of steel, as the small end wil be practically free of blow holes and hence need not be cut off and Wasted as is usually necessary in casting iiigots by the ordinary methods now employed.

llavingtliiis described my invention, what l claim and desire to secure by Letters Patent, is z- Y 1. Ameans for forming ingots, comprising a closed bottom mold, mechanism for engaging the mold` and lifting the saine, and conipressing devices o erated by the Weight of the mold and the meot for compressing the ingot within the molt '2. A means for forming ingots, comprising a mold, a detachable bottom therefor', mechanism for lifting the mold, and com ressiiig devices operated by the weight of tiie mold and the ingot adapted to engagethe'top ol the ingot and compress the saine while theI mold bottom is on, and which act to eject the ingot when the bottom is removed.

3. A means for forming ingots, which couiprises a mold open at the top, a bottoni therefordetaohably connected to the mold, compressing devices for engaging the top of the ingotl, lifting devices for detacliably coniieeting with the said compressing-devices and ar-y ranged to transmit the weight of the mold and ingot to the said compressing devices, and

trunnions on the mold substantially midway the ends thereof adapted to detachably connect with the aforesaid lifting devices when they are disconnected froni'the compression devices, for the purposes described.

4. In an iiigot forming means of the cintracter described, in combination with the mold having aitransverse socket in its upper end; of oppositely disposed links pivotiilly mounted in. the saidsocket, levcrs-pivotnlly mounted 011 said links, said levers having apertured outer ends and their inner ends formed with cam like portions, a presser v.block movable in the bore of the mold with which the cain portion engages and a sling having hook portions for engaging the apertured ends of the sald levers, as set forth.

5. In an ingot forming means o l the character described, the combination with thev mold having a transverse socket in its upper end; of oppositely disposed links pivotally mounted in the said socket and adapted 'to swing outward over the edges of the mold, levers pivotally mounted on the said links, said, levers having outwardly extending portions and `their inner ends formed with cani like portions adapted to extend down into the boro of the mold and moans for applying v pressure to thelevers, for the purposes stated.

FRANCIS Marianen,

Witnesses'.

JnnnMiAii J. MoCAnTiiY, WILLIAM H. MURPHY.

IIO

Images