US1011558A - Type-casting machine. - Google Patents

Description

E. B. BARBER. TYPE, ms'rma' 11110111112.v MPLI'OL'IIQI FILED 1'33. 18, 19 11. BEIEWED 1 01. 11, 1011 I 1,01 1,558. Patented Dee 12,1911.

'4 SHEETS-SEEM 1.

INVENTOR ATTORNEY 2.3.3.11113511. TYPE CASTING 1110mm APPLICATION PILBD 11B 13, I911. BEIEWEQINWL 11. N11.

Patented 1m. 12,1911.

mmrron 2813M.

lnozawzr WITNESSES:

BARBER.

' TYPE ASTING 114011132. r Arguauxon Hun 3.1:, 911. nmvjzwnn gov. 11, m1. 1,01 1,558. Patented Dec 12, 1911' i k I I! i I mum g mu VII I ,4 TTORNH E.B,BA RBER. I TYPE CASTING MACHINE. A-PPLIOA'IIOR FILE-D H1113, 1911 RENEWED NOV. '11; 1911.

1,611,558. I Patented Dec/12,1911;

4 sums-sum 4.

WITNESSES: -)WENTOR W W&

UNITED STATES PATENT OFFICE.

nmvnsr snnu umjnnmsnn, or NEWYORKQN; Y., assronon' r mH E on'mnio TYPE j i Specification o'f'Letter'sjhtent. 7 .a i iiq noam argtmar 1a, 1911,'S eria1 No. 608,440. Renewed November 11,1911.. Serial m). 659,840.

mncnmn oo mjraiwmmrrnn, or TORGNTO, CANADA, A CORPORATION or-oANA JA.

TYPE-CASTING MAGHINE' rapentea neeriz,i911.

To all whom it may concern:

Be it known :that I, ERNEST BENJAMIN .BARBER, of the borough'of Brooklyn, in the county of Kingsz-and city and'State of New York, 'have'invnted certainnew and use- ;1. ful- --Improvements 1 in Type-Casting 'Machines; and Ihereby declare that'the followingis a'.full,1clear, and exact description. 10f the same. a I

' In my application for machines forcasting and composing types,:- filed March 2, 1909,: 'Serial"No;:480-,828, have-shown and described two'melting pots, one alarge sup-' plypot from which the molten-metal is pumped to the smaller or working pot, both I potsbeing supplied; with suitable burners :i'for-= heating, w and means whereby the over- *flow returns from the workingpot to the ,Supp1y p c e g p having a 'flilitervalsf 'P elector desqends and ticalpiston well in which,-and at proper ;i-' displaces a body of molten'metal' forcingj it 1 through the nozzle into" the moldicavlty.

In thesame application I=have shown and videdwith a foot plate to form the foot of the type body, this footplate being attached described the type bodym'old to'be proto the mold structure and providedwith an inlet iaperture. alined with the mold cavity. In my application Serial No. 564,29Q, filed May 31, 1910, I haveshownand describe d -certain structural'::changes in the mach neforming the subject matter ofniy I Vsaid pplicationASOfiQS, and owingto these structural, changes to increase and ther *thetlype production, I have redesignedthe workin melting pot to make it practical -for a high speed operating machine, and I I in have provided the type bo'dymold with a revoluble foot plate having a'plural' number "of inlets successivelybrought into'relation with the mold cavity at each casting operation, cleaned and" in condition forthe unobstructed flow Ofthe type-metal :forthe cast;

Inorder to obtain-the required rapidity of action I" have'provided the working meltton well removably suspended in the'type ing pot with af horizontally"arranged pis- 'metal reservoir 'in parallel relation to the type-bodymold and submerged below the level ofthe type metal with an' inletbelow' """f'the-scum surface, and I have arranged the metal reservoir, piston well and-piston ejector,"withinthe working melting pot, in .such a manner as'to be quickly and easily separated, clea-ned,fand reassembled without disturbing the organization or arrangement of their related parts. I have also providedapositively acting piston ejector and an actuating mechanism causing the piston ejector to reciprocatewithin the piston well and force a stream of molten metal through the nozzle into? the mold cavity ateaoh casting operation, 1 the body of metal displaced by theaction of thepiston ejector being-suflicient only'for the casting of the largest type-body size. I I have also arranged the mouth of the nozzle to form a metal tight joint withithe footplate when formedby the overrun of typemetal, and

I have'provided means to remove the gate and metalfia'kes-from the foot plate sothat eachinlet will be; brought toiexa'ct position with the moldcavity cleaned and in condition for the cast.

I For an understanding of 'my, invention reference is to be had to the followi'ngidescription :and to the accompanying drawings-in which Figure 1, is a perspective view showingthetype body mold, the foot plate,- the workmg melting pot and-itsactuating mechanism the working melting pot being partly broken away to show its. internal construction. Fig; 2, is aplan view partly in section, with the'working melting pot and'its associated parts locked at their casting position. Fig; 3, is a perspective view of; the'piston ejector. Fig. 4,-is a perspective viewof the piston well. Fig; 5; is a vertical section on F the line 'a'-.a Fig. Fig. 6, is a similar view to Fig. 5, with the parts in theirre- "tracted pos tion; Flg. .7,-1s arear View of the mold," T the foot plate, and; actuating.

mechanism. "Fig.8, .is a perspectlve view of :theparts 'shownxin 7, with thea foot plate removed. Fig. 9, is a section on the line cZcZ Fig. 7. f

'Like characters of reference refer to'like parts throughout the specification and 5 drawings. e i The type metal reservoir a of the working melting pot is small in comparison to the quantity of type metal used during the operation of a type casting machine and it is 10 to be understood that the reservoir is to be constantly supplied from a larger pot similar to that shownin my said concurrent application 480,828, the

aburner b placed beneath it.

I Surrounding the reservoir a is a jacket 0 fastened at its base to the main frame 0 formed, to direct the heat from the burner around the reservoir aiand nozzle of, and, to-prevent the radiation of the heat to the other parts of the machine. The upper edge of the reservoir is providedwith outwardly projecting lugs a which slidably rest in the recessed part c of the upper edge of, the jacket 0 for the purpose. of movably supportingthe reservoir within the jacket as hereinafter described. The piston well a is horizontally disposed in the metal reservoir a below the normal level of the type bar a is fixedly attached tothe nozzle a of the piston well a and its ends rest in notches a in the upper edge of the met-al;,

reservoir (1, to removablysupport the forward part of the piston'well 1n a fixed posi-' tion with relation to the reservoir. The rear end of the piston well a rests against the inner wall of the reservoir a and is removably supported upon a shoulder a provided within the reservoir. v

The piston well is provided with a nozzle when the arts are in their casting position extends slightly beyond the outer surface of the jacket 0, The mouth a" of the nozzle a is concaved and formslwith the foot plate d, when locked up, a metal-tightjoint around the inlet. al to prevent splashing or leakage of the type metal during they cast, the concave formation of the mouth also providing for the overrun of metal. The nozzle a does not, as heretofore been usual, enter the inlet (Z in the foot plate d, but surrounds it when lockedup against the face of the foot pla'te, thus eliminating binding or hang- .mg when retracting after the cast and rendering the, action of the working melting pot practical for a high speed operating machine. v During the operation of the machine,. .the working melting pot is moved forward in the jacket '0 until the mouth of the nozzle is ward in the piston well to l the mouth of the type metal in the res 'ervoir being kept in a molten condition, by

metal and has an inlet or below the scum,

a projecting through the reservoir and locked against the adjacent face of the foot plate d, andtforms with it a met-a1 tightj oint. The piston ejector is then moved for eject type metal for the cast, the type metal flowing through nozzle, and the positioned inletrl, into the mold cavityE, and when the cast is made, the reservoir and its asso ciated parts are retracted from the foot late. p Inorder to effect the reciprocating action ofthe reservoir and its aseociated parts, I provide the working melting pot with a rock shaft f having a crank arm. 7 to which is connected one end of a link f, the other end of the link being connected to the lever f fulcrumed to the main frame 0, and actuated by a. .cam f on the high speed shaft 7.

'I also provide the rock shaft f with a crank arm 7 having its free end connected by a link f with the body part of the piston well a During the rotationof the high speed shaft f, the cam f revolves and moves the upper end of the lever f in the direction indicated by arrow in Fig.l1,-moving the lower end of the lever f and link f in the opposite direction. This movement of the link, through the agency of the crank arm f, turns the rock shaft f in the direction indicated by arrow in the same figure. and

moves the crank arm f toward the working melting pot. This movement of the crank arm 'f", through the agency of the link 7", pushes the piston Well toward the type body mold E. The piston .well being stationary .in the reservoir a, imparts to the reservoir the motion communicated by the crank arm f and link f causing the reservoir to move forward in the jacketc to the limit of the movement of the parts, this movement being provided for by t-heolength of the recesses 0 and determined by the cam f when the mouth of the nozzle has been tightly locked up against the foot plate cl.

Loosely mounted upon the rock shaft f is a sleeve g provided with a crank arm 9 connected by a link with the lower "end of a lever g, the upper end of the lever g" being actuated by a cam g mounted on the high speed shaft f. The sleeve 9 is also provided with a crank arm 9 connected by a link g with the lug 0a of the piston ejector a When the mouth ofthe nozzle is locked against the foot plate, the-cam g aot-uates'the lever g to rock the sleeve 9 and move the crank arm 9 andlink g". toward the type body mold E. This motion of the crank arm and link pushes the piss ton ejector in the direction of the nozzle of the piston well and causes the ejection of type metal through the nozzle into the mold.

Coiled upon the link is a spring gtwhich effects the return of the parts to their normal position when the lever g is relieved if the influence of the cam g. This spring g bears against a lug 0 forming part;.,of

the main frame 0 and against a collar g on the link g3, forcin the linkinthe (tire in uence of the cam g and reverses the movement of the crank arm 9 and link '9 retracting the piston ejector a in the piston well, until the shoulder g comes into en: gagement with thelug P, and by its continued movement restoring the reservoir a to its initial position. 1

It is through the agency of the parts enumerated. that "the reservoir and its associated parts are locked in the casting position, and the type metal is ejected from the piston well into themold cavity, and subsequently returned to their normal or initial position.

The constructive details of the type-body mold E are slightly different from those shown in my said concurrent application, but they operate in substantially the same manner. j g g As the mold forms no part of my present application itwill not be necessary to'refer to its construction further than to describe fao the mold cap e".

the operation of its parts in conjunction with the action of the foot plate and-locking member. o v

, Mounted upon the high speed shaft f is a ram 9, which, upon each rotation of the cam shaft, causes the oscillation of the rock shaft a", and through its connections raisesand lowers at proper intervals the mold cap e 7 e In order "to lock the mold parts tightly to 'getheif during the cast there is rigidly attached to the'rockshaft e" acrank connected by a link a witha locking member 6' which alternately opens from and closes against The locking member 6 is loosely mounted to rock upon the hollow stationary shaft 0 supported in lugs-,0?"

projecting from the stationary part as of shaft 6 is the stud e' of a ratchet wheel d7 j intermittently rotated by a'spring tensioned ratchet pawl 01, pivoted to the locking memher a, Fixed on' the" stud" 6 is the foot plate d having inlets kl corresponding.

number and pitch with the teeth ofthe into position with the mold ratchet wheel df so that the. intermittent. v rotation of the ratchet wheel will intermittently and successively brin the inlets d The edge of the foot plate 03 is provided with notches (Z to receive the spring deten't d, preventing. the reverse rotation of the foot plate and holding it in its fixed position until rotated by the action of the ratchet pawl 03'. "The inlets (1* are beveledto-form. knife edges at the inner.- face of the foot. plate, and these lmife edges operate to shear off the gates formed'on the ty ')e'.-

r With each rotation of the high speed shaft f the cam e operates to oscillate the rock shaft 0, the resultant actions of this oscillation' being tobring the mold cap e into its closed position against the stationary part e of the mold, through the agency of the cranks e and links 6 and succeeding the action of closing the mold cap, the crank e and its link connection a operate to close-the locking membere against the mol d,c apaan d hold it securely in its closed position during the casting of the type body. Coilncident with the closing of the lockingmember a against the mold cap e the ratchet-pawl d engages a tooth of :the, ratchet wheel ,df for the next partial rotation of the shaft 6 and foot plate 01. The cams f and g now act simultaneously, the one to move the type metal reservoir a and its associated parts toward the type mold E until the mouth of the nozzle a engages the foot plate 01 and forms with it a metal tight joint. The cam 9 continues its action and causes the intervening parts to force the piston ejector a forward in the piston well a" to eject'a stream of molten type metal through the nozzle a and inlet 0Z into' the mold E. The cam g is so timed that when the ejection of typermetal has taken place, it releases the parts and they are then returned to their normal position under the influence.of the spring 9.

During the retraction of the parts effected by the spring g, the shoulder g of the link connection 9 comes into-contact with an overhanging lug f of thelink connection f" attached to thebody part of the piston well a, and effects the retraction of the link connection f piston well a and metal reservoir a, bringing all the parts back to their normal position. Upon the return of the Working melting pot and its-related parts to their normal position,ithe came acting uponthe rock shaft c" releases the locking member e from. the mold cap a, and by its action causes the ratchet pawl dflto rotate the ratchetv wheel d", and foot plate d.

During thisjmovement of the footplate d, -the' knifejedgerof the inlet d trimsthe vgatefrom the type then withinthe moldjE, the

gate'ibeing carried by the foot plate ,{to a pick d attached to some convenient part of the machine structure, which removesit, this movement of the foot plate also bringing a succeeding .inlet cl, into position with the mold cavity for the" next cast. foot plate revolves between the pick di-ion one.

side, anda'wiper d onthe otherside to respectively; remove the gates and metal flakes. from, the foot plate as it revolves so that each inlet 01. when itipassesf-{the pick and wiper Will be thoroughly cleaned to provide an unobstructed passage for the type metal into the mold. The mold cap e isthenlifted and the ty e is delivered by the ejeetorblade e from e mold to the place of assemblage. Y The continued action of the parts closes the mold cap against the sta tlonary mold part c and brings the locking member a up to engagement with, but not tightly against, the mold cap.

The special feature of this construction of a working melting pot is that its parts can be quickly and easily detached,'separated, cleaned, repaired, reassembled and. replaced, and by the arrangement of the piston well in parallel lines with the type chamber, it is possible to provide for the displacement of metal necessary for rapidcasting, and to reduce to a minimum the disturbance of the metal ahead of the pistonejector, which, in the present instance, is so slight as not-to require any considerable exertion of power or strain of the parts, and by the use of a revoluble foot plate, it is possible to bring to exact position to f0rm-the base of the type a foot plate with inlets cleaned and in condition for the cast.

By providing the piston well with a nozzle to deliver the type metal to a type'body mold in the same direction as the action of the piston, the displacement of. metal by' the piston to eflect the cast has been to reduced as to increase the rapid operation of the machine. v

Having thus fully described my invention what I claim asnew and desire to secure by Letters Patent is 1. In a working melting pot for a typecasting machine, a .pistonwell, and a nozzle for the piston well having a cup-shaped mouth to contain the overrun of metal from the change of type body size.

2. In a working melting pot for a type casting machine, a stationary jacket, a metal reservoir suspended to .reciprocate within the jacket, a piston well horizontally and removably supported within the metal'reservoir, a piston. ejector operating in the piston well, and a nozzle for the piston Well to deliver the metal horizontally to a type body mold. 3. In a working melting pot for a type casting machine, a stationary jacket, a metal reservoir supported to reciprocate within the jacket, a piston well horizontally suspended in the metal reservoir, and actuated to cause the metal reservoir to move in a forward direction, a piston ejector operating in the piston well actuated to eject the metal for the cast and to return the metal reservoirwith the piston well and piston ejector to their normal position. f

1. In a type-casting machine, in combination, a type body mold, and a revoluble footplate having an inlet with a shearing edge.

as .the foot plate rotates, and means forcausing the intermittent rotation of the foot plate and bringing the inlets successively into relation with the type body mold.

7. In a type-casting machine, in combination, a type body mold, and a rotatable foot plate having a plural number of inlets successively brought into relation with the type body mold-and having shearing edges to trim the feet of the type bodies as the foot plate rotates.

8. In a type-casting machine, in combination, a type body mold, a rotatable foot plate having a plural number of inlets having shearing edges to trim the feet of the type bodies as the foot plate rotates;'means ,for causing the intermittent rotation of the foot plate,'and means for cleaning the inlets whereby. they are successively brought into relation with the type body mold cleaned and in condition for casting.

9. In a type-casting machine, in combination, a type body mold, a rotatable. foot plate having an inlet with a shearing edge to trim the foot of =a type body as the foot plate rotates, and means for cleaning the foot plate.

' 10. In a type-casting machine, in combination, a type body mold, and a rotatable inlet therefor having a shearing edge to trim the foot of a type body, brought during its rotation into operative relatlon with the type body mold cleaned and in condition for casting.

11. In a working melting pot for a type casting machine a stationary jacket, a metal reservoir movably supported therein, a piston well horizontally supported in and unitedly movable with the metal reservoir,

a piston ejectoroperati'ng in the piston well and operable means causing the movement ofthe metal reservoir to bring the piston well into operative relation with a type body mold.

1 Brooklyn, N. Y., January 21st 1911.

El tNEST BENJAMIN BARBER. Signed .in the presence of--- CHAS. H. Rrorms, CECELIA HANSEN.

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