US2125695A

US2125695A - Slug casting machine

Info

Publication number: US2125695A
Application number: US163403A
Authority: US
Inventors: Anthony J Stouges
Original assignee: Mergenthaler Linotype GmbH
Current assignee: Mergenthaler Linotype GmbH; Mergenthaler Linotype Co
Priority date: 1937-09-11
Filing date: 1937-09-11
Publication date: 1938-08-02
Anticipated expiration: 1955-08-02

Description

2 H938. A. J. sToUGE l SLUG CASTING MACHINE Filed sept. 11`J 1937 [N VEA/'TOR @dw/5% 0%@ TTOR-EYS UNITED STATES PATENT OFFHC SLUG CASTING MACHINE Anthony J. Stouges, Queens Village, N. Y., assignor to Mergenthaler Linotype Company, a corporation of New York Application September 11, 1937, Serial No. 163,403

15 Claims.

This invention relates to slug casting machines of the general organization represented in the U. S. Letters Patent No. 436,532 to O. Mergenthaler, whereinV circulating matrices are released from a magazine in the order in which their characters are to appear in print and then assembled in line; the composed line transferred into a line transporter or so-called first elevator; the

i transporter lowered to position the line between pair of vise jaws, which clamp it therebetween, and before the face of a slotted mold mounted on rotatable mold wheel; the mold wheel advanced from its rotating position to carry the face of the mold against the line and the vise jaws; the mold filled with molten metal to form a type line or slug against the matrices which produce the type characters thereon; the mold wheel retracted to its rotating position; and the matrices thereafter returned through distributing nechanism to'tle magazine from which they started.

It is common practice to provide each of the vise jaws with a longitudinally disposed rib which enters the mold slot as the mold is carried for- Ward by the mold wheel to casting position. These ribs in entering the mold slot serve to produce low-quad surfaces on the printing edges of the slugs beyond the type characters. general, such an arrangement for producing lowquad slugs is satisfactory, but it is open to the objection that, unless the" mold slot is directly opposite or at the same level as the projecting ribs on the vise jaws when the mold wheel moves forward during the casting operation, the ribs will not enter and form the necessary metal tight seal or joint between the top and bottom walls of the slot.

To meet this objection, it is proposed, in accordance with the present invention, to adjust the position or level of the mold slot with respect to the position or level of. the projecting ribs on the vise jaws, whenever necessary, and to this end the stud about which the mold wheel rotates ,is adapted and arranged to be adjusted vertically.

In consequence, any variation in the level of the `projecting ribs with respect to the casting level of the mold slot may be easily corrected by ad- "justing the stud vertically to raise or lower the `by Vway of example and in preferred form. Ob

viously, however, many variations and modications may be made therein which will still be comprised within its spirit, and it is to be understood that the invention is not to be limited to any specific form or embodiment, except insofar as such limitations are specified in the appended claims.

In the drawing,

Fig. 1 is a side View, in section, of that portion of the machine embodying the present invention;

Fig. 2 is a rear View of the lateral arm in which the mold wheel stud is mounted; and

Fig. 3 is a view of a so-called low-quad slug.

In the usual operation of the machine, an assembled line of matrices 9 is transferred into a so-called rst elevator or line transporter Ill, which then descends from the full line position shown in Fig. 1 to the dotted line position shown therein to locate the line between a left-hand vise jaw'Y I3 and a right-hand vise jaw (not shown), which jaws before casting move inwardly (either or both according as the machine is set for left-hand or right-hand quadding or for centering) to clamp the line between them. As usual, several molds I4 are mounted on a mold disk I6, each mold, for example, being of a different size to produce slugs of different point sizes. Also, as usual, the mold disk I6 is rotatably mounted on a stud Il' carried by a lateral arm I8 on the fore-and-aft mold slide I9, axial fdisplacement of the disk on the stud being prevented by an annular collar Eil secured to the front face of the stud Il by screws 2i and by the front face of the hub portion of the lateral arm I8.

After the composed line is presented in casting position, the mold slide I9 advances in the usual manner to bring the front face of the mold Ill into contact with the composed line and the casting faces of the vise jaws. The mouthpiece 22 of a metal pot then advances against the rear face of the mold, after which molten metal is forced into the mold to form a type bar or slug against the matrices which produce the type characters thereon.

Each vise jaw is provided with a longitudinally extending rib 23 which projects toward the mold I4 on substantially the same horizontal level as the mold slot I5. The rib 23 on each jaw is preferably formed on a slide 2li rearwardly secured to the jaw, as by tting the slide into a dove-tailed recess in the casting face of the jaw (see the co-pending application of Richard R. Mead, Serial No. 81,394, filed May 23, 1936), this arrangement being desirable to permit the employment of different slides having ribs of `the lower at face 34 on the stud I1.

different widths to suit molds of, different heights for casting slugs of different point sizes. The upper and lower edges of the ribs are beveled or inclined at opposite angles and the front portion of the upper and lower walls of the mold are correspondingly beveled or inclined, as in the Mead application just referred to.

Under the conditions stated, as the mold disk I6 is carried forward by the mold slide I9 to present the front face of the mold I4 against the casting edges of the assembled line of matrices and the casting faces of the vise jaws, the ribs 23 enter the end portions of the mold slot I5 and form a metal tight seal or joint. Then, by forcing molten metal into the mold slot I5, a slug 45 is produced having a character bearing portion 46 and low-

quad end portions

41 and 48, it being observed that the slug shown in Fig. 3 is of the centered Variety.

In the event, however, that the ribs 23 on the Avise jaws are not directly in front or at the level of the mold slot I5 when the mold wheel moves forward to casting position, they will not enter and form the necessary metal tight seal. Since both the mold I4 and the ribs 23 are carried by moving parts of the machine, such mis-alignment may result during assembly of the machine or during the normal operation of the machine after assembly.

The present invention therefore provides means for correcting slight variations in the relative levels of the mold slot I5 and the projecting ribs 23 on the vise jaws to bring them into exact alignment, and to this end the stud I1 upon which the mold disk I6 rotates, instead (as ordinarily) of being xedly mounted in the lateral arm I8 of the mold slide I9, is adapted and arranged to be adjusted vertically therein.

As shown more clearly in Figure 2, the foreand-aft opening 26 of the lateral arm I8 in which the stud I1 is mounted is recessed to provide oppositely disposed

vertical side faces

21 and 28, respectively, and the stud I1 is provided with two oppositely disposed

arcuate portions

29 and 30, respectively, which are Yin sliding contact with the

vertical side faces

21 and 28 of the opening 26. The stud .I1 is also provided with a fiat top face 3| which is connected with the upper 'ends of the

arcuate portions

23 and 30 by slop.-

.lower ends of the arcuate portions 29 and 3D by similar sloping

shoulders

35a and 36a, respectively, the arrangement being such that when the stud I1 is located centrally in the opening 26, it is capable of limited` up and down movement therein.

Adjusting

screws

35 and 36 are provided for moving the stud I1 up and down in the opening, one of the screws being threaded through a tapped hole 31 in the lateral arm I9 with its lower end in engagement with the upper flat face 3| on the stud I1, and the other screw being threaded through a similar tapped hole 38 in the lateral arm I9 with its upper end in engagement with Y The adjusting screws 35 and35 are locked in set position vby set screws 4I) and 4I, respectively, one of which -is threaded through a tapped'hole l42 in the rear `of lthe lateral 'arm IB Vinto engagement with the upper adjusting screw 35, and the other of which .is threaded through a similar hole `43 in the rear In'the -event thefmold slot I5 is slightly above or below the level of the vise jaw ribs 23 when the mold I4 is in its horizontal casting position, the set screws 40 and 4I may be backed off and the adjusting

screws

35 and 36 manipulated to raise or lower stud I1. As the stud I1 is raised or lowered, the mold wheel I6 and active mold I4 carried thereby are raised or lowered accordingly, the contact between the

arcuate portions

29 and 30 of the stud I1 and the vertical side faces 21 and 218 of the opening 26 serving to prevent lateral displacement of the stud during such vertical adjustment. When the mold slot I5 is properly aligned with the ribs 23, the adjusting screws and 36 are again locked in position by the set screws and 4I.

While the adjustment of the mold wheel is herein intended specifically to bring about the alignment of the mold slot with the low-quad vise jaw ribs, it will be understood that the invention contemplates a similar adjustment of the mold wheel for any other purpose.

Having thus described my invention, what I claim is:

1. In a slug casting machine, the combination of a mold wheel carrying a slotted mold, a pair of vise jaws, at least one of which has a longitudinally extending rib on the casting face thereof, means for presenting said mold against said jaws, and means for adjusting the level at which said mold is presented against said jaws to insure entrance of the rib into the slot without disturbing the relationship between said mold and said wheel.

2. In a slug casting machine, the combination of a pair of vise jaws, at least one of which hasA wheel.

3, In a slug casting machine, the combination of a pair of vise jaws, a mold wheel carrying a slotted mold and adapted to present said mold y.against said jaws, and means for changing the level at which said mold is presented against said jaws without disturbing the relationship between said mold and said wheel.

4. In a slug casting machine, the combination .of a mold wheel, and means for changing the position of the axis of rotation of said wheel to permit the presentation of an active mold at different casting levels.

5. In 'a slug casting machine, the combination of a mold wheel, a stud upon which said wheel yisrotatably mounted, and means for changing the `wheel to present an ractive mold in casting position, and means for changing the level at which said mold wheel is advanced.

7. In a slug casting machine, the combination ,of a mold slide, a mold wheel rotatably mounted on the slide, a slotted mold mounted on the wheel, and means for changing the position of the axis of rotation of said wheel on said slide.

8'. In a slug casting machine, the combination of a .mold slide, a mold wheel rotatably -zmounted on `the slide, a slotted mold mounted on lthe wheel, :and means for changing vertically 5.75

the position of the axis of rotation of said wheel on the slide.

9. In a slug casting machine, the combination of a fore-and-aft mold slide having a lateral arm, a stud adjustably mounted in said arm, and a mold wheel rotatably mounted on said stud. 10. In a slug casting machine, the combination of a fore-and-aft mold slide having a lateral arm, a stud mounted in said arm, a mold wheel rotatably mounted on the arm, means for adjusting vertically the position of the stud in the arm, and means for preventing lateral displacement of the stud during such adjustment.

11. In a slug casting machine, the combination of a fore-and-aft mold slide having a lateral arm, a stud mounted in said arm, and a mold "wheel rotatably mounted on said stud, said stud being capable of adjustment in one direction only in said arm.

12. In a slug casting machine, the combination of a fore-and-aft mold slide having a lateral arm,

` a stud mounted in said arm, a mold wheel rotatably mounted on said stud, means for adjusting said stud to a desired position, and means for of a fore-and-aft mold slide having a lateral arm, 10

a pair of adjusting screws carried by said arm, means for locking said screws against rotation, a stud supported between oppositely disposed ends of said screws, and a mold Wheel rotatably mounted on said stud. 15

15. In a slug casting machine, the combination of a fore-and-aft mold slide having a lateral arm, a pair of vertically disposed adjusting screws carried by said arm, means for locking said screws against rotation, a stud positioned be- 20 tween oppositely disposed ends of said screws, and a mold wheel rotatably mounted on said stud.

ANTHONY J. sToUGEs.