US354935A

US354935A - Type-casting machine

Info

Publication number: US354935A
Authority: US
Publication date: 1886-12-28
Anticipated expiration: 1903-12-28

Description

' (No Model.) 3 Sheets-Sheet 1.

G. RETTIG.

TYPE GASTING MAGHI-NB. I

Patented Dec 28, 1886.-

(No Model.) I 3 Sheets-Sheet 2. V G. RETTIG.

TYPE CASTING MACHINE. No. 354,935. Patented Dec. 28, 1886,

(No Model) 3 sheets-Sheet 3.

G. R ETTIG.

TYPE CASTING MACHINE.

No. 354,935; I Patented Dec. 28, 1886.

1km asses I Inward or: I

I I in QWGK PETERS Fhollrumognpher, Wilhillgtnn, I): C

UNITE STATES PATENT rrrcn.

GEORGE RETTIG, OF CHICAGO, ILLINOIS.

TYPE-CASTING MACHINE.

"PECIPIC'ATION forming part of Letters Patent No. 354,935, dated December 28, 1886.

Application filed January 12, 1885. Serial No. 172,696. (No model.) Patenttd in Germany Febru ry 17, 18 6, No. 36,420.

To all whom it may concern:

Be it known that I, GEORGE RETTIG, a citi zen of the United States, and residing at Ohicago, in thecounty of Cook and State of lllinois, have invented certain new and useful Improvements in Type-Casting Molds, which are fully set forth in the following specification.

The purpose of this invention is to provide means whereby the jet or tongue of refuse metal, which fills the port of a type-casting mold from the base of the type to the nippleplate, may be detached from the type in the act and process of opening the mold, and may also automatically by the operation of the machine be removed from its lodgment in the mold-port, so that the same may be clear for the fiow of the metal for the next. type.

In general it consists of two parts or feajet while the type is removed and so effecting separation between them, and the second the means for clearing the jet from its lodgment in the port.

v The first part consists in providing some portion of the fixed member of the mold with recess or recesses communicating with the jetport, into which some portion of the metal may flow and form detent points or flange on the jet, whereby it may be detained inthe fixed member of the mold, as set forth. I prefer'to accomplish this by providingin the nipple-plate or apron on the inner face, which abuts against the mold, a hollowed recess adj acent to and merging in the n ipp1e-orifice,co1nmonly called the spout, at the lower side thereof, being in the nature of an eccentric countersink to the spout, and providing in the edge of the lower or stationary member of the mold, as close to the upper surface as possible and in such position as to open into the said recess in the nipple-plate, small holes of slight depth, into which the metal discharged through the spout in the nipple-plate to fill the mold and form the type shall flow and constitute, when hardened, detent points, whereby the jet may be held in the fixed member of the mold, while the type retained in the upper or vibrating member by the usual means-21 pin-printis broken off from the jet in the action of opening the mold, so as to be separately discharged. The flange of metal formed in the recess in the nipple-plate'will, I

in some cases, be sufficient for the purpose of detaining the jet without the addition of the projecting points formed in the holes made in the mold itself, and the latter may therefore be omitted; or, instead of or in addition to both flange and projections to insure the result, provision may be made, for a projection from the side of the jet by providing arecessin thatlateral wall ofthe jet-port which is formed by the lower member of the mold.

The second part consists in suitably connecting to any part of the machine other than the mold itself, but which is actuated synchronously with the openingof the mold, a lever arranged and adapted'to be moved by such moving part past the rear edge of the lower member of the mold to discharge the jet. turesthe first, the means for detaining the.

Figure 1 is a rear elevation of a type-mold in position on the machine and provided with my inventionviz., devices for detaining and discharging thejet. Figs. 2 and 3 are horizontal isometricalprojections, respectively, of the upper and, lower members of the mold, their opposing faces being exposed to view. Figs. 4 and 5 are vertical isometrioal projections, respectively front and rear, of thelower member of the mold, the latter showing also the nipple-plate and the position of its spout relatively to the j et. Fig. 6 is an inner side elevation of the plate, showing the recess or countersink about and below the nipple-orifice or spout. Fig. 7 is a section through on x in Fig. 6. Figs. 8, 9, and 10 are detail views of different forms of the recess in the nipple-plate and its relation to the spout. Figs. 11 and 12 are details showing the form of thejet as produced in a mold having my invention applied. Fig. 13 is a side elevation showing the actuating parts of the rocking frame X and of the lever E.

A is the upper member of the mold. A is the lower member.

a is the jet-port through which the metal enters the mold, being bounded by the faces a and rd of the lower member, A, and by the faces a and a of the upper member, A, having, therefore, and giving to the j et the wedgeshaped form shown in Figs. 11 and 12, thinnest at its junction with the base of the type, so as to be easily detached at that point. The faces a and a ot' the lower member and a and a of the upper member bound the type-cavity, the two members being relatively adjustable for different sizes of type, as well understood. The face a of the upper member has the usual detent pin or pins, 0, to detain the type in that member when the mold is opened.

B is the nippleplate, through whose spoutb the metal reaches the jet-port a, as shown in Fig. 5.

b is the recess on the inner surface of the nipple-plate.

b are pin-holes in the edge of the mold and within the bounds of the recess b.

b is a recess in the lateral wall a of jetport in the lower member of the mold, wherein is formed a lateral projection from the jet. When used alone, without the recesses b and b, it may be located nearer the larger end of the jet; but when used in conjunction with recesses b and b its location is preferably nearer to the smaller end of the jet and to its junction with the type.

The metal flowing through the spout b will fill the recess Z2, and thence pass into the holes b, while the otherportion of it flows on through the jet-port a and into the mold to form the type. When the mold has withdrawn from the nipple-plate and opened, as in the ordinary operation of type-casting machines, the flange and projections formed in any or all of the several recesses described in the nippleplate and the lower member of the mold detain the jet therein, while the body of the type detained by the usual means---the pin cin the upper member is broken off from the jet at the base of the type, where the jet is thinnest.

I find it desirable to produce the recesses described by drilling in the mold before it is hardened small pin-holes, and after the mold is hardened driving into such pin-holes soft iron or steel pins or plugs b, leaving only the desired depth of recess in front of the pin, so that if in dressing up the'mold, as is done to insure and preserve its accuracy, those recesses which are veryslight should be dressed out they may be readily restored by driving in or cutting into the soft pins which fill the holes.

In order to discharge the jet and clear the mold for the next type, I have provided the arm D, which, as illustrated, is a lever pivoted to any part of the machine, which is fixedin its position relatively to the lower member of the mold-as to the rocking frame X, which carries the entire mold. Said arm D is connected by the link D to any part, as the arm E, which moves while the mold is open, and is thereby actuated, so as to cause the free end D to move close to the rear side of the fixed member A of the mold and strike the projecting points e of the jet and detach and discharge it from the mold.

I provide several of the holes 12, to adapt the device to all sizes of type to which the mold is adapted.

I do not limit myself to the use of separate holes bf,- but a continuous *groove might be substituted, though with the disadvantage that the entire groove would fill with metal even in making small type. When theseparate holes are used, the lateral extent of the recess 1) should be only suificient to embrace one or two of them, and as the position of the spout is changed for different sizes of type different holes, but not more of them, will be brought into use.

The structure of the type-casting machine in connection with which my invention is shown is the familiar one, the rocking or vibrating frame X being pivoted at an a: to the base or main frame of the machine X and caused to rock over the said pivots by the cam Y on the revolving shaft 1, the arm E being vertically oscillated by the said rocking motion of the frame X by means of the connecting rod or lever Z, which is pivoted by balland-socket joints z and z to the base-frame X and the arm E, respectively; but my invention is independent of this particular structure, and in a differently-constructed machine the arm D might be actuated by a different and di-fl'erently-actuated part without departing from the substance of my invention, for I do not limit myself to the precise arrangement of the arm D, nor to so connecting it that its motion shall be that of a lever, nor to connecting it to the arm E; but any arm actuated at the time the mold is open by connection with a moving part of the machine, and located so that it shall in its motion strike the projecting points of the jet to dislodge it from the mold, will be within the scope of my invention.

I do not claim, broadly, providing the two' members of the mold one with a type-detainer and the other with a jet-detainer, whereby the opening of the mold breaks the jet from the type; nor do I claim, broadly, combining with a mold so constructed an arm which moves past the jet end of the jet-detaining member after the breaking is effected to discharge the jet, for I am aware that such an arm hasheretofore been used, rigidly fastened to the moving member of the mold and moving past the fixed member, which is made to retain the j et 5 nor do I claim to be the first to employ the recesses to form on the jet the detent to hold it in the mold, nor to be the first to combine with a mold having recesses for such purpose a jet-discharging arm actuated bya moving part of the machine and moved close to the jet end of the mold; but

WVhat I claim is p 1. In combination with the mold having a j et-casting portion, the nipple-plate or apron provided on the face toward the mold with a recess adjacent to and merging in the aperture through said plate by which the metal is conducted to the mold, said recess extending laterally beyond the jet-aperture of the mold,

'whereby a flange is cast on the jet against the face of the mold, substantially as set forth.

2. In a typecasting mold, in combination with the nipple-plate having a recess on its inner face adjacent to and merging in the spout, the lower or stationary jet-block provided with recess orrecesses in its rear edge communicating with the recess in the nippleplate, substantially as set forth.

3. In a type-casting mold, in combination with the movable type-detaining member of the mold, the nipple-plate having a recess on its inner face adjacent to and communicating with the spout, the lower or fixed member of the mold having in its rear edge a recess or recesses communicating with the recess in the nippleplate, and having also a recess in the.

the fixed member of the mold while the same is open, substantially as set forth.

5. In combination with the jet-retaining member of the mold, an arm pivoted on the mold-carrying frame and actuated during the opening of the mold past the jet end of said jet-retaining member, substantially as and for the purpose set forth.

6. In atype-casting machine, the fixed member of the mold A, having recesses to form detents on the jet, the arm D, the link D, and the arm E, combined and cooperating as and for the purpose set forth.

7. Ina type-casting machine, the mold having in its vibrating member detents to detain the type and in its fixed member devices to detain the jet, in combination with the arm E, the link D, and the lever D, substantially as and for the purpose set forth.

8. In atype casting mold, the lower or fixed member having holes leading from the jet port or cavity communicating therewith, and provided with pins or plugs of softer metal than the body of saidmold, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand, in the presence of two witnesses, at Chicago, Illinois, this 5th day of January, A. D. 1885.

enonen nnrrre.

A-ttest:

CHAS. S. BURTON, L. 0. Brass.