US1620978A - Slug-casting machine - Google Patents

Description

March 15 1927.

J. G. M NAMARA SLUG CASTING MACHINE Filed March 21, 1924 4 5 Sheets-Sheet 1 SINVENTOR March 15, 1927. 1 1,620,978

, J. G. M NAMARA SLUG CASTING MACHINE Filed March 1, 1924 a Sheets-SheetZ 1 Van/L v March 15,1927. 1 1,620,978

- J. G. M NAMARA iii! Patented Mar, 15, 1927.

NI ED T 1 mama JAMES G. McNAMARA,oF BROOKLYN, NEW YORK; nss'IoNOB TQMERGE T L N XrE c lemma c mB lon F-NEW',YORK.-,

sLUG-oAs In'G Mncnmn,

Application filed March 21, 1924. Serial No. 700,:207. I

This invention has referenceto slug castingimachines, such as linotype-machines of the general organization represented in Let ters'Patentof the United; States No. 436,532

to Mergenthaler, wherein a slug .or lino-V type is cast in a slotted mold against a composed line of matrices which produce the type characters thereon.- In these machines,

the molds are usually-mounted in a vertical;

'intermittingly rotated :diskor' wheel which first presents the selected mold inahorizontal position for the casting of the slug, and thereafter carries it around to'ajvertical position for the ejection of the :cast slug therefrom. f a i I The lpresentzinventionis directed to an improved mounting-of the mold disk-,and one which will :admit of "its instant andconvenien-t removal foncleaning, repair or replacementyor for any otherpurpose. The

invention-also contemplates the combination with the mold disk of a cooling jacket mounted in novel --relation thereto and serv-' ing to prevent the undue heating of-theparts by'the molten metal from which the slugs are produced. "r The exact nature of the*improvementswill-hest be understood'fro'm the detaileddescription to follow; I Referring to t-he drawings v 1 aside elevation ofa portion of a li-notype machine equipped with the pres ent=improvements;- i 7 F g-2 2 front elevation of the same; Fig. 3 isahorizontal section, partly in 'plan bfthe -mold slide, the mold disk, and the associated parts;

g =4 is a -vertical sectiontakenon the UGH .ofFig; 3 as viewed in the direction of-the= -arroWs-; Y a r Fig; 5" is a perspective "-view) of the 'mold slide-as viewed from the; rear, andshowing the 'releasable mold, disk confining means p 5 the inner end of a locking plate-orslideG As usual, the mold-diskA, equipped with one or more molds 1A, is mounted for rotation upon the arm or support B pro ecting laterally from themold slide B which latter 7 ing near its upper end the usugaldisk guiding throughfthe customary connections "by the gear segmentsAfl in such "manner. that durL- ably therefrom. The, journal stud F jects'a slight distance loeyond' the rear face 'of the-armeB and is formed in its proingwcasting the selected mold is presented 1 in a horlzontal position ,to receivethe molten mg is carried around to a vertical position vwhere it registers with a pair, of trimming' knives (not shown) between which the slug is e ected from the mold by the usual ejector,

h ATENT- OFFICE;

metal from the metal pot C, and after casta blade; 0 As is well known, the reciprocation of the mold slide '3 is timedto, move the disk rearwardly when it is to be; rotated to carry the selected mold from casting to ejecting position, or vice versa, and to move the disk forwardly when in either of. such positions, in the one case to insure the close: contact, of the mold with the composed matrix line held in thevise frame D, and in the other to locate the-,moldinproximity,

slug While in the mold is trimmed; icy-ma" back knife B on the freeend of the arm" 13 :as shown in Fig.5 andpast whichthe,

-- commercial linotype machine or of other appropriate construction. i J

to the trimmingknivesrsThebase of the.

As before stated, the'present. invention isf' directed to an improved mounting of the mold disk. 2 In the embodiment illustrated,

thearm'B is provided with aboss E pro.- I 'jecting v forwardly therefrom and formed with a centralbearing opening E passing v through the boss and'arm from front to rear,

Themold disk A has fixed to it a rearwardly extending journal stud F rotatab-lyzmount-ed' in the bearingopening.Ezandf e l rmow jecting end with an annular g-roove F; In this groove F, therens adapted to engage:

movable horizontally in guides G on the rear face of the arm B' The locking plate may be? operated'by any suitable means, but

in the present instance it is'connected by a link G with a hand lever H ivoted-atfitslower end to the arm '13, as at} and carryally confined thereon; whereas, when the locking plate is disengaged from the stud groove,'the mold disk may be drawn forwardly for removal from the supporting arm,it being apparent that the looking or unlocking of the mold disk 'may be instantly effected simply by swinging the hand lever in one direction or the other. By placing the guiding block H on the hand lever, the

disengagement of the locking plate from the mold disk will simultaneously effect the disengagement of the guiding block therefrom. In removing the mold disk, the vise frame D as ordinarily is swung forwardly and downwardly out of theway, as indicated by the'dotted lines in Fig. 1.

In order that the'parts will be prevented from becoming unduly heated by the molten metal injected into the molds during the slug casting operations, a hollow annular cooling jacket J is placed around the boss E and in the space between the arm B and the mold disk A. This cooling jacket is confined in place'and against rotation by means of a number of fastening screws J passing through lugs J on the jacket and screwed into the supporting arm. The heads of the screws J arecountersunk in the lugs J and are so spaced from the front face of the supporting arm as to permitof a limited axial movement of the cooling jacket. Expansion springs K, seated between the supporting arm and cooling jacket, act to press the latter up against the rear face of the mold disk and hold it in yielding contact therewith. A cooling medium, such as water, enters the jacketby a pipe L connected thereto atone side of a partition L, and after flowing around the chamber L leaves the jacket by a pipe L connected thereto at the opposite side of the partition.

In the accompanying drawings, the invention has been'illustra'ted merely in preferred form and by way of example and as applied to a linotype machine, but obviously many changes and variations thereinand in its mode of application may be made without departing from its spirit. It

- is to be understood therefore that the invention'is notlimited to any specific form or embodiment, except in so far as such limita tions are specified in the claims. 7

Having thus described my invention, what I claim is:

1. In a linotype machine the combination of a mold slide movable forwardly and backwardly in the machine, a mold disk equipped with one or more slug casting molds-and rotatably mounted upon the slide, said mold disk being freely removable from the slide, a locking device carried by the mold slide and cooperating with the mold disk to confinethe latter rotatably placed thereon, said locking device being movable at will to disengage the disk for instant disk, a journal nections between said operating member and locking device. I v

2. In a linotype machinelthe combination of a mold slide movable forwardly and backwardly in the machine, a mold disk equipped with one or more slug casting molds and rotatably mounted upon the slide, said mold disk being freely removable from the mold'slide'in a forward direction, a locking device carried by the mold slide and cooperating with the mold disk to confine the latter rotatably in place there-.

on, and means connected to said lockingdevlce and being operable at will from the front of the machine to disengage the mold disk and permit its instant removah .3. In a linotype machine the combination of a mold slide movable forwardly and backwardly in the machine, a mold disk equipped with one or more slugcasting molds and rotatably mounted upon the slide, said mold disk being freely removable from the mold slide, a locking device Jcarried by the mold slide and cooperating with the mold disk to confine the latter rotatably placed thereon, and a-hand lever alsocarried1by the mold slide within easy reach of.

the operator and operatively connected with the locking device, whereby theplatter may the instant v be disengaged at will to-permit removal of'the disk.

4. In a linotype machine, the'conibinatioii of a support provided with a bearing, fa mold disk, a. journal stud fixed to the disk andi removably mounted in the" bearing and formed with an annular groove, a locking device slidably mounted on the support and adapted to engage in the ,stud groove tolcon-y fine the mold disk on the support,and a lever pivoted to the support and connected with the locking device] for disengaging it from the stud to permit the removal of themold disk.

5. In a linotype machine, the combination of a'support provided with a bearing, a mold and removably mounted in the bearing a locking device slidably mounted on the-,supjstud fixed to the mold disk.

port and adapted to engage the stud to confine the mold disk onthe support, a hand lever pivoted to the support and connected to the locking device for disengaging it from the diskstud, and a disk guiding block carried by the hand lever and adapted to be dis; engaged from the disk by the disengage? ment of the locking device.

6. In alinotoype machine, the combination of a moldslide provided with alaterally extending support formed with a bearing opening passing through it from fronta to rear, a mold disk located atthe front of the support, a ournal stud on the mold disk re:

movably mounted in the bearing opening and projecting beyond the rear face of the support, the projecting end of the stud being formed with an annular groove, a locking device movably mounted on the rear face of the support and engaging in the stud groove to confine the mold disk thereon, and means for disengaging said locking device from the stud groove to permit the removal of the mold disk. 5

7. In a linotype machine, the combination of a support, a mold disk rotatably mounted thereon, means releasable at'will for confining the disk'on the support,al disk guiding member carried by the support'and movable to free the disk, and operative connections between said confining means and guiding member whereby the movement of the latter effects the release of the former.

8. In a linotype machine, the combination of a support, a mold disk rotatably mounted thereon, and a relatively stationary, cooling jacket arranged in contact with the side face of the disk.

9. In a linotype machine, the combina -j tion of a support, a mold disk rotatably mounted theron, a floating cooling jacket carried by the support, and means acting to press the j face'of the disk;

10. In a-linotype machine, the combination of a support provided with a hollow boss, a mold'disk rotatably journaled in the boss, and an annular cooling j acket surrounding the boss and contacting with the rear face of the disk. I

eket yieldingly against the rear- 11. In a linotype machine, the combination of a support provided with a hollow boss, a mold disk rotatably journaled in the 4 I the cooling jacket to hold it-yieldingly against the rear face of the disk.

f In testimony whereof, I have aflixed my signature hereto.

JAMES G. MONAMARA,

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