US633991A - Ladle for casting car-wheels. - Google Patents

Description

No. 633,991. I Patented-oct. 3,18%:.

` 4A. J. FISHER. y

LAuLE 'Fon cAsTme cmwums.

(Appliltion med Aug. 9, 189B.) (lo Modem 2 Sheets-Sheet 26 A fr hmm@ IEI f lllmmum ,'Nn. 6334994. Patented net. 3, |899.

A. J. FISHER. LADLE FR CASTING CAR WHEELS.

(Appltion filed Aug'. 9. 1898A A (No ModoL 2 Sheets-Sheet 2.

UNITED STATES PATENT OFFICE.

ALVA J. FISHER, OF KANSAS CIT-Y, MISSOURI.

LADLE FR CASTING .CAR-WHEELS.

sPnoIFIcA'rIoN forming part of Lei-.ters

Application nea lingua 9, 139s.

To all whom it may con/cern:

Be it known that I, ALVA J. FISHER, of Kansas City, Jackson county, Missouri, have invented certain new and useful Improvements in Ladles for Casting Car-VVheels, of which the following' is a specication.

My invention relates to that class of ladies for casting car-wheels which discharge the molten metal through an opening in the bottom 5 and my object in this connection' is to generally improve upon the ladles at present in use by providing Aa more reliable, strong, and durable stopper-adjustiug means and a shield or guard to protect certain parts of the device from the molten metal splattered inl the manipulation of the ladle, this shield or guard thereby -expediting the work.

Other objects of the invention will hereinafter appear and be pointed out in appended claims, and in order that the invention may be fully understood I will proceed to describe it with reference to the accompanying drawings, in which- Figure 1 represents a detail vertical section ct' the upper partof a ladle embodying my invention. Fig. 2 is atop plan view of the same. Fig. 3 is a side elevation showing the stopperoperating mechanism. Fig. 4 is a horizontal section taken just above the lever 6 in Fig. 3. Fig. 5 is a detailed elevation of the trunnionbearing.

In said drawings, 1 designates the usual cylindrical'ladle, provided with a lining 2 and a discharge-nozzle 3, arranged eccentrically of its center (see Fig. 2) and provided with a concave or segmental seat 4 in its upper end.

5 designates a slide-rest provided vin Aits outer face with a longitudinal dovetail groove G and bolted, as at V7, in a vertical position to the ladle adjacent to the nozzle 3.l Q

8 designates a slide dovetailed in the groove 6 and provided at its upper end with a horizontal head9, extending radially of the ladle, and provided with a shield or hood for preventing splattered metal from entering the dovetail groove, and thereby rendering impossible the proper manipulation of the slide, the improper manipulation of which is destructive to` the car-wheel being cast. This shield or hood consists of the side wings 10, diverging ldownwardly from opposite sides of the head 9 and bifurcated, as at 1l, to accom- Patent No. 633,991, dated October 3, 1899.

Serial llo. G 88,231. (No model.)

modate the wall of the ladle. It also comprises the downwardly and inwardly sloping wing 12, which projects down into the ladle, and is preferably formed at its upper end and outer side with a downwardly and outwardly sloping wall 13, which tends to deflect inward any molten metal which has splattered up betweenthe wing 12 and the lining ot the ladle. By means of this shield or hood it will be seen that it 7is practically impossible for molten Inetal to enter the groove 6, and thereby interfere with the proper manipulation of the slide. If the metal should enter said groove and sowould be impossible to check the dow of metal .from the ladle at'the exact instant necessary, and would thereby result in a ruined or defective car-wheel. Near its outer end the head 9 is provided with a vertical stud 14 and in radial alinement and inward of the same with a second stud 15.n

l16 designates a plate provided with a hole 17, engaging stud 14, and a slot 1S, engagingv stud 15, in order that said/plate 16 may be laterally adjusted as required. The upper ends of these studs 14 and 15 are engaged by clamping- nuts 19 and 20, respectively, whereby plate 16 is clamped in the required position. The inner end of said plate is bifurcated, as at 21, and bent to form bearing-cavities at op posite sides of the bifurcation and justinward of the latteris provided with a vertical stud 22, engaged at its upper end by a nut 23, Whichsecures plate 24 in position. j This plate 24 is bifurcated at its inner end, as at 25, and said end is bent to form downwardly-disposed bearing-cavities. It is also bent downward at its rear end to form the fulcrum or bearingpoint 26, which rests upon plate 16, thereby giving clamping-nut 23 a leverage in order that plate 24 may be clamped tightly upon the right sleeve 28, the sleeve extending through the registering bifurcations 21 and 25, with plates 16 and 24.

Thestopper of the ladle consists of the head 29, of any suitable material and at its lower side of hemispherical form in order that it may effectually close the ,discharge-nozzle when seated in recess 4, as indicated by dotted lines in Fig. 3.` This stopper is secured lidify at its lower end, it is obvious ythat it oppositely-projecting trunnions 27 of the up-y its trunnions ttiu g in bearings formed in the` in any suitable manner upon the lower end of rod 30, extending up through the sleeve 2S and engaged at its upper end by the clamping-nut 3l, and surrounding said rod is a protective covering 32, which prevents the rod getting so hot that it will bend'. This covering connects with the stopper 29 at its lower end and at its upper end is embraced by a cap 33, and between said cap and the lower end of the sleeve are washers 34. In practice the plate 16 is adjusted to dispose the sleeve 28 vertically over the center of the discharge-y nozzle, so that when the stopper is clamped to the perpendicular sleeve it will close said nozzle, provided the slide occupies its depressed position, asshown in the drawings. As frequently happens, however, the rod 30 may not be perfectly straight,therefore throwing the head 29 of the stopper out of line with the upper end of rod 30 and the discharge-nozzle, With the result that an imperfect stoppage of the latter is effected. To correct this evil, the clamping-nut 23 is loosened and the trunnions 27 turned in their bearing to dispose the sleeve 2S vat such an angle that the head 29 of the stopper will accurately iit in the recess 4 and effectually close the dischargenozzle, or if the bend of the rod 3() is of such character that a lateral adjustment is necessary such adjustment can be effected by loosening nut 2O and swinging plate 1G to the1 right or left, as the case may be, on the pivotpin 14E, slot 1S engaging pin l5, permitting this adjustment to be made. If the bend in the rod should be neither directly inward nor lateral, but between the two, then it would be necessary to adjust the sleeve 2S in addition to the adjustment of plate 16. It will therefore he seen that this construction gives practically a universal adjustment of the stopper. In order to manipulate the slide and the stopper connected thereto, I provide the following construction: 35 designates a pitnian which is pivot-ally mounted at its upper end upon a stud 36, projecting from the slide, and at its lower end upon a pin or bolt 37, carried at the front end of a lever 38. Said lever is fulcrumed upon a stud or bolt 39, projecting from the slide-rest, and is provided with a handle 40, preferably detachable. By depressing said handle through the medium of the pitman 35 the slide and stopper are instantly raised and the molten metal permitted to flow out of the ladle through the discharge nozzle thereof and into the mold. (Not shown.) When the handle is released, the slide gravitates back to its original position, and this gravitative action can beldepended upon, owing to the fact that thereis no possible chance for the molten metal obtaining access to the groove in which said slot operates.

The stoppercarrying rod 30 is preferably constructed of wrought-iron, and a protective covering for the same is made of a composition consisting of molding-sand, silica-sand, and lire-clay, preferably four parts each of the molding and silica sand and one-fifth part lire-clay, dampened to render it plastic. This composition in practice is found to answer admirably. The ladle is constructed of steel, by preference, and the slide and resttherefor of cast-iron. It is to be understood, however, that I do not restrict myself to the use of any material or compositions of materials except as hereinafter indicated in the claims.

Having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is*

l. A ladle for casting car-wheels, having an opening in its bottom, a vertically-grooved slide-rest secured to the ladle, a slide arranged in said groove and carrying a stopper for the opening of the ladle, and provided with a shield or hood for protecting the groove of the slide-rest from the entrance of splattered molten metal from the ladle, said shield consisting of downwardly-diverging bifurcated side Wings, which overhang the upper end of the slide-rest and embrace the upper edge of the ladle, and a wing extending downward and inward of the ladle, substantially as described.

2. A ladle for casting car-wheels, having an openingin its bottom, a vertically-grooved slide-rest secured to the ladle, a slide arranged in said groove and carryingastopper for the opening of the ladle, and provided with ashield or hood for protecting the groove of the slide-rest from the entrance of splat tered molten metal from the ladle, said shield consisting of downwardly-diverging bifur cated side wings, which overhang the upper end of the slide-rest and embrace the upper edge of the ladle, and a win g extending downward and inward of the ladle, and provided at its outer side with a Wall 13 sloping downward and outward, substantially as described.

3. A ladle for casting car-Wheels, having an opening in its bottom, a slide, a stopper for the ladle-opening, a sleeve mounted upon the stern of said stopper and provided with outwardly-projecting trunnions, and a bifurcated bearing engaging said trunnions at opposite sides of the sleeve and carried by said slide, substantially as described.

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4. A ladle for casting car-wheels, havingA an opening in its bottom, a stopper therefor provided with a stem, a slide, and means to operate the same, a plate secured to the slide and provided With a bifurcated bearing,a plate bolted upon the plate secured to the slide and provided with a companion bifurcated bear ing and a fulcrum or bearing-shoulder,a sleeve upon the stopper-stem extending through said bifurcated bearing and provided with trunnions mounted in said bearings, and means to clamp the upper bearing-plate down upon the plate secured to the slide and uponsaid trunnions, substantially as described.

5. A ladle for casting car-wheels, having an opening in its bottom, a stopper therefor, a slide, and means to operate the same, studs projecting upwardly from the slide, a plate carrying the stopper and resting upon the slide, pivoted upon one bolt and provided with a slot engaging the other, and clamping-nuts engaging said studs to secure said plate at the desired point of adjustment, substantially as described.

6. A ladle for casting oar-Wheels, having au opening in its bottom, a stopper therefor provided with a stern, a slide, and means to operate the same, a laterally-adjustable plate secured to the slide and provided with a bifureated bearing, a plate bolted upon the plate secured to the slide and provided with a com-

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