US2510407A - Metal pouring mechanism - Google Patents

Description

June 6, 1950 F. D. MASCARO METAL POURING MECHANISM 2 Sheets-Sheet 1 Filed Aug. 23, 1947 INVENTOR FRANK D. MASCARO BY ATTO NEY June 6, 1950 F. D. MAscARo METAL POURING MECHANISM 2 Sheets- Sheet 2 Filed Aug. 23, 1947 INVENTO I RANK D. MASCARO Z ATTok EY Patented June 6, 1950 METAL POUR-ING MECHANISM Frank D. Mascaro, Ben Avon, Pa., assignor to American Steel Foundries, Chicago, 111., a corporation of New Jersey Application August 23, 1947, Serial No. 770,272

2 Claims.

tion to prevent the pot from accidentally tilting on the trunnions from which it is suspended and thus spilling molten metal when it is being transported from place to place in the foundry.

'Another object of the invention is to devise a latch mechanism which is easy to operate, is of simple construction, and is capable 'of withstanding severe use in service.

These and other objects of the invention will be apparent from the specification and the drawings, wherein:

Figure 1 is a side elevation of one form of my" invention with the keeper and hand guard being shown in vertical section;

Figure 2 is a view taken from the right of the structure shown in Figure 1;

Figures 3 to illustrate my novel keeper, Figure 3 being a top plan View thereof, Figure 4 being a side elevation thereof taken from the bottom as shown in Figure 3, and Figure 5 is an end view thereof taken from the right as shown in Figure 3; and

Figures 6 and 7 illustrate another form of my invention, Figure 6 being a top plan view thereof, and Figure 7 being a side elevation thereof.

Describing the invention in detail and referring .7 first to the modification shown in Figures 1 to 5, the pot or ladle 2 is provided with horizontally extending trunnions 4 and 6 upon which the pot may be suspended from hangers I0 and I2 forming part of a hail, the lower or hook ends 14 and [6 of the hangers being hooked under the trunnions 4 and 6, respectively, and the upper ends of the hangers being connected in any convenient manner as by nuts l8, [8 to a cross piece 20 designed'forconnection to an overhead means (not shown) for conveying the pot.

The pot, after having received a charge of molten metal, is poured or teemed by hand into the molds by rotating the pot on the trunnions by means of a lever or tilting handle, generally designated 22, said handle being in the form of an L-shaped bar comprising a vertical extension or upstanding arm 24 spaced from the pot and a horizontal extension or arm 26 (Figure 1) extending parallel to the axis of the trunnion 4* and having a down-turned portion 28 at its inner end adapted to fit into a socket 30 in said trunnion 4 for thus removably keying the handle to the pot, it being understood that movement of the handle will eifect corresponding movement of the pot.

A sheet metal shield or hand guard, generally indicated at 32, is provided at the upper end of the arm 24. The guard is, in general, semicylindrical in form and comprises top and bottom webs 34 and 36 connected at vertically spaced points as at 38 and 40, respectively, to the arm 24 of the tilting handle in any convenient manner as by welding, A semicylindrical web 42 extends between the top and bottom webs and is connected at its upper and lower edges as by welding at 44 and 46 to the edges of the top and bottom webs remote from the arm 24. The web 42 with said top and bottom webs defines a pocket 48 large enough to conveniently admit an operator's hand, the guard serving to protect the operator's hand from the heat radiated by the molten metal in the pot.

A V-shaped elbow lever or latching member 50 is disposed in the pocket 48, said lever being pivoted at its elbow on a pin or bolt 52 extending through said lever 50 and through a pair of lugs 54, 54fixed to the arm 24 at a point intermediate the points of connection 38 and 40 between the arm and the top and bottom webs of the uard. v

The lever 50 comprises'a diagonally upwardly extending leg 56 (Figure 1) and a horizontally extending leg 58, the leg'58 merging at one end into the lower end of said leg 56 and at its other end extending through an opening 50 in the web 42 of the guard. It will be noted that the leg 55 serves as a handle for operating the latching member, and the leg 58 serves as a latching bolt as hereinafter described.

A stop lug 62 (Figure 1) is formed on the lever 50 on the outer side of the elbow formed by the juncture between the legs 56 and 58 thereof, said lug 62 being adapted for abutment as at 64 against the arm 24 to limit counterclockwise rotation (Figure 1) of the lever 50 for a purpose hereinafter described.

A keeper or socket member, generally designated 66 and illustrated in detail in Figures 3 and 5, is sleeved over the hanger ll] of the bail and may be fixed thereto as by welding. The keeper comprises a cylindrical portion 68 with an opening 10 accommodating sleeving of the keeper onto the hanger ID. A pair of spaced vertical webs 12 and 14 extend from one side of said cylindrical portion, said vertical websmerging at their upper ends into a horizontal web I6 extending therebetween, said horizontal web I6 merging at its inner end into the cylindrical portion 68 and being downwardly offset as at I8 at its outer end and with said side webs defining a socket 80 adapted to receive the adjacent end of therleg 5'8-.of the=latch-rmember--50 when theipot is in an upright position.v .The web I2 is formed with an upwardly extending lug 82 at one side of the socket 80, said lug82 serving as a stop, it being adaptedto. abut. against the adjacent end of the leg 58 when'saidleg"58 is in raised position to prevenhbackward tilting of the pot. At the opposite side ;of-wthe;socket 80 the web I4 is formed with a laterally extending downwardly sloping web .84 which, as hereinafter noted, is adapted to guide theleg 58 into the pocket 30 when the pot is being zreturne'tl from a tilted position= to its upright position. A .pair'of vertical depending webs 8B-and are sformedyat opposite sides-of them eb=84, said webs '08 :and -90 :m'erging-"at one 9 end -;into :the web 114 --and at the other rend merging into -.a vertical depending 1-web =92 extending ztherebetween a and integrally formed with the leading edgelof the web -84. The web 90'; is continued on -.the 1 01- ward edges of the webs16 and "I2 :-arrd.-is..coi-'ed away Et'thGISGGkBt 80.

In operation,:to-tilt the pot-fromrits-upright position after it has i been charged with 'molten metal, the operator -insrts hand into the ..guard.pocket 48 simultaneously graspingrthe arm 24 of *the' tilting handle and the handleportion or leg 56- of the lever +50 and,:by,--sgueezing his hand; rotatestheclever 50: in a clockwiseldirecticn (Figure 1) causing the leverato assume ithe posi- TtlOILShOWn inphantom lines inrEigurel, thus lifting-the leg -r58 tor bolteportionof the lever wout of the '*-socket .80. The tilting handle hmay then-be rotated in-.-a--clo.ckwise direction ('Figure ,-2) counterclockwise rotation: or rearward: tilting of the pot and handle.beirrgprevented-byz the stop 'lug 02. Theoperator,latter' havingitilted the 1 potas described, imayrelease'his holdaonthe latch .member. Aftercompletingeaoh pouring'opera- .tion the operator? may rotate thGgDOt to-an up- .right position. :the ;pot and tilting handle are being rotated --to :the upright position, :the latch member; if; the:releasedposition-'asshown in phantom lines in Figure 1, is caused torotate in 1a counterclockwise direction rby -gravity, "the deg :58 of the latch :member :being :providedwith ":9, lug 80 r to increase its weight :and cause -such 'm'ovement. zThe' latch: memberriszlimitewinrthis :rotat-ion'bytthe'stoplug 62 =which,=-after=the latch memberassumes: a certain gpredetermined [position, abutsagainst the arm .-24 of thezitilting hand-1e. -As: therotation: of 1 the pot to: its upright position continues; therlega58-iofathe -latch member engages the-sloping we-b 84 of therkeeperr-and -r-i'des thereon, thus; bemgr-guided -into the socket 130; the1-leg:58,' .after reachingtthesocket, dropping Ethereinto of itsown weight.-

-If theoperator? should: accidentallyrelease his 6 hold=on the :tiltingahandle when the pot is in tilted or pouring position, :thepot and handle will abe r caused to rotate to an. upright i position inasmuch as :the trunnions =4 ezan d 6 are above :the'..center of gravityiof -tl1-epot-and=it will be -..observed'that as the g'pGt"-SWingS':tO SuCh upright :position, the latching-nmember will act (in the :same manner.- as -When the-pot is intentionally xrotated from the tiited etc rthe --iupright, position.

"As an .alternative the operatortmay holdlther =50 zontal leg I50 of the tilting handle.

latch member and tilting handle in all positions of the pot and may, upon completion of the pouring operation, bring the tilting handle to an upright position and simultaneously release the 5 latching member and tilting handle, whereupon the leg 58 of the latching member will drop into the pocket 80 of its own accord.

z-Referring now to Eigures fi and 1-7 1 illustrating anothemmodificationpf the invention-"the ladle or pot carrier I00 is substantially square in top plan view and is adapted to receive a pot I02 of complementary form therein in the usual manner -'to--aflord support therefor, the pot being shown in'Figurefl phantom lines.

w'lheacarrier isgprovided with shields I00, I06 :zandrtrunnions:lfiarand I I0 at diagonally opposite corners thereof. The trunnions I08 and H0 are rotatably'mounted'on the lower ends of a pair of -hook'tbolts or hangers H2 and H4 forming part of a bail which is designed for connection to overhead. means (not. shown) fort conveying I the ,pot.in :amanner as will-be readilyhunderstood by thoseskilled in the .art. The .trunnion I08 ,is formed with; an. Leshaped tilting handle orf lever H5, the handle being adapted to be grasped by an operator .and trotated .to.-. tilt .the ..pot. The vertical leg of the handle. IV [6. mountsat its upper end andL-shapedguard II.8 comprising a horiizontaLweb. I20andn vertical web l I24, said horia ZOl1t8l webubeing connectedas ate I22 .(Eigure 7) to v.said yertical .leg of I the handle intermediate the topand bottom thereof, .and said vertical .web I24 being disposed, intermediate the ,vertical legrof .the handle andthe pot. V .A rveshaped bell cranklever lafi is pivotedgatitswelbow.asat I28 to a pair of lugs.I3i0,,l..30. on,the ,verticallegof the .tiltinghandle, the lugs being disposed below the-horizontal web of the guard. The lever I25 comprises a diagonally upwardly extending leg -.;4o,..l.3z,projeeting throughaslot-IM (Figure 6) in the-horizontal webof the guard andialeg I36 angularly related to the leg'l3.2,.the ,16gl10rnially underlying the horizontal Webof the guard. The free end of the. horizontal legl36 is pivoted asat L38 .to-oneiend of adownwardly extending ro.d M5, the opposite -endof which ispivotedas at [42.210 alink orlatchingbolt I44 intermediate the: ends thereof. The .link .l.44.i pivoted atone endas .at I46 to.a.pair of '.lugs.I.48 ,onthehori- .The vfree end. of ithe link I44iextends towards .the. adjacent hanger: II Land inthe locked. position..of;the .pot -.isdisposedat onehside of a..keeper. or catch I52 which is in the form of a plate fixed to ,,one. of

"5 thelegs citric-han er H2. .Attheoppositeside ef I the plate .I 52 is v disposedia vertically extend- .ing .lug I v54 formed. integrally, on the horizontal leg of --the tiltinglhandle adjacentvthe trunnion I 08, the lug I 54 .being. adapted to abut against BO-Athe adjacent side ;-of thekeeper I52 .toprevent .bacltwardetiltingof thei pot, anddthe link I44 being adapted ,.to =abut. against the opposite side otthe keeper when the potlis-in a lockedupright position toprevent for-ward tilting of the pot.

-In operation, to tilt the: pot. from its upright locked? position the. operator inserts. his hand into the guand, 1 simultaneously rgrasping the vertical -leg of the: tilting handleo-and-the diagonallyaextending leg of the;bell--.crank-leverland, byzsqueezr7 inghis hand rotatesz the lever. in a counterclockwwise direction-.(Figure7l, thus raisingtheleg L35 thereof and.- causingthelever torassume ,Ithe aposition shown; in phantom! lines inc-Figure .7, the web I24 of the guardbeingslotted-asat[-56 (Fi .Ziture '7) :to accommodate such :movement. The

lever raises the rod I40, which in turn raises the free end of the link I44 above the keeper I52 whereupon the pot is permitted to be rotated forwardly for pouring. Upon the completion of each pouring operation, the operator again raises the link I44 by actuating the bell crank lever and, upon returning the pot to its upright position, releases the bell crank lever whereupon, due to gravity, the bell crank lever is caused to rotate in a clockwise direction (Figure 7), the rod connected thereto moving downwardly and the link I44 dropping behind the keeper I54.

It is to be understood that I do not wish to be limited by the exact embodiments of the device shown which are merely by way of illustration and not limitation as various and other forms of the device will, of course, be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

I claim:

1. The combination of a pot having trunnions, a. bail rotatably suspending said pot from said trunnions, one of said trunnions having a transverse opening therethrough, means for rotating the pot for teeming the same, said means comprising a handle member having an end portion extending through said opening for removably interlocking said member with the pot, said member having an intermediate portion extending from said end portion away from the pot and seated on top of said one trunnion, a handhold portion integral with said intermediate portion and extending angularly thereto, said handhold portion in the upright position of the pot being located in the vertical plane of said bail, and means for releasably locking the pot in upright position comprising a latch element disposed be tween said handhold portion and said bail and comprising a pair of angularly related interconnected legs, means pivotally connecting said element at the juncture of said legs with said handhold portion on an axis disposed between said handhold portion and bail and angularly related to said plane, one of said legs sloping upwardly from said axis away from said handhold portion toward the bail, the other of said legs extending generally perpendicular to said handhold portion toward said bail, a keeper on said bail disposed below said other leg and having an upwardly open socket receiving an end of said other leg therein, an abutment lug on said keeper extending upwardly at one side of said socket, a downwardly sloping web at the opposite side of the socket, said legs being rotatable toward and away from said bail and, when rotated away from said bail, raising said other leg out of said socket whereupon said member may be rotated to teem said pot, a lug at the juncture of said legs extending downwardly from said axis toward said handhold portion, said lug being adapted to abut against said portion to limit rotation of said element toward said bail to prevent said other leg from moving to a position below said keeper when said handle member is rotated from upright position whereby when said handle member is rotated from an inclined to an upright position said other leg is caused to engage said s1oping web and to slide thereon into said socket, said handle member being disconnectable from said keeper in the upright position of said handle member by lifting said handle member upwardly to withdraw said end portion of said handle member from said opening in the trunnion and lift said other leg of said latch member out of said keeper socket.

2. The combination of a pot, a bail rotatably suspending the pot, a handle connected to the pot for rotating and teeming the same, said handle having a handhold portion extending upwardly in the upright position of the pot, and means for releasably locking the pot in upright position comprising a latch disposed between the handhold portion and the bail and comprising a pair of angularly related legs, means pivotally connecting said latch at the juncture of said legs with the handhold portion on an axis extending angularly to the plane of the bail, one of the legs sloping upwardly from the axis toward the bail and the other leg extending generally perpendicular from said handhold portion toward the ball, a keeper on the bail below said other leg and having a socket receiving said other leg therein, an inclined surface on the keeper sloping downwardly at one side of said plane and extending to said socket, said latch being manually rotatable away from the bail by grasping said one leg and portion together to raise said other leg out of the socket whereupon said handle may be rotated from an upright to an inclined position for teeming the pot, and a lug at the juncture of said legs extending downwardly from said axis toward the handhold portion for abutment therewith to limit rotation of the latch toward the bail to prevent said other leg from moving to a position in a path below the keeper when the handle is inclined and the latch is released whereupon, when said handle is rotated to upright position, said other leg is positioned in a path intersecting said sloping surface whereby said other leg is caused to slide on'said surface into the socket.

FRANK D. MASCARO.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 665,499 Baldt Jan. 8, 1901 878,002 Imboden et al. Feb. 4, 1908 1,139,960 Fazakerley May 18, 1915 1,226,653 Goldberg May 22, 1917 1,493,714 Wells May 13, 1924 1,674,214 McGaughey June 19, 1928 1,721,660 Goldberg July 23, 1929 1,722,777 Wellman July 30, 1929 FOREIGN PATENTS Number Country Date 215,019 Germany Oct. 25, 1909

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