US2642180A - Slug casting machine - Google Patents

Slug casting machine Download PDF

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Publication number
US2642180A
US2642180A US116700A US11670049A US2642180A US 2642180 A US2642180 A US 2642180A US 116700 A US116700 A US 116700A US 11670049 A US11670049 A US 11670049A US 2642180 A US2642180 A US 2642180A
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US
United States
Prior art keywords
line
rod
casting
detents
jaws
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US116700A
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English (en)
Inventor
Joseph F Krusberger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mergenthaler Linotype GmbH
Mergenthaler Linotype Co
Original Assignee
Mergenthaler Linotype GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mergenthaler Linotype GmbH filed Critical Mergenthaler Linotype GmbH
Priority to US116700A priority Critical patent/US2642180A/en
Priority to DEM6041A priority patent/DE835600C/de
Application granted granted Critical
Publication of US2642180A publication Critical patent/US2642180A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B11/00—Details of, or accessories for, machines for mechanical composition using matrices for individual characters which are selected and assembled for type casting or moulding
    • B41B11/38—Devices for aligning or clamping lines of matrices and space bands

Definitions

  • This invention relates to slug casting machines, such as Linotype machinesof the general organization represented in United States Letters Patent to O. Mergenthaler No. 436,532, wherein circulating matrices and expansible spacebands' are composed in line 'by the manipulation of a keyboard, the composed line transferred to a slotted mold for the casting of a type bar or slug, and the matrices and spacebands thereafter separated and returned by a distributing mechanism to the magazines from which they started.
  • slug casting machines such as Linotype machinesof the general organization represented in United States Letters Patent to O. Mergenthaler No. 436,532, wherein circulating matrices and expansible spacebands' are composed in line 'by the manipulation of a keyboard, the composed line transferred to a slotted mold for the casting of a type bar or slug, and the matrices and spacebands thereafter separated and returned by a distributing mechanism to the magazines from which they started.
  • the invention relates to machines of this character equipped with quadding and centering devices, in order that the machine may handle not only lines of full length as ordinarily, but in addition lines of less than full length (regardless of their actual length), lines of the latter kind in machines of this character being'composed merely with the matrices necessary for the printed matter and indented at the left or at the right end of the line or centered as desired.
  • the grip element later (after the line has cleared the jaws) being disengaged from the vertically movable member to permit it to ascend to its uppermost position and return the jaws to their positions of maximum separation.
  • Frolander and Mead patents referred to contemplate the closing of the jaws against the composed line under pressure and thereafter effecting a positive separation of the jaws for a limited distance for the free expansion of the spaceb-ands in justifying the line, the justification pressure being sufiicient as in regular machine operation) to spread out the line tightly between thejaws.
  • the line closing zpressure might squeeze the line sufficiently to straighten the matrices, but when one-half or more of the total number of matrices in the line must be straightened to obtain a tight lock-up, as is frequently the case, the line closing pressure may be far from adequate.
  • Fig. 1 is a front elevation of the casting mechanism of a Linotype machine, equipped with the present improvements, certain portions being broken away and other portions shown in section to reveal structural details; 7
  • Fig. 2 is a vertical section taken on the line 2-2 of Fig. l; a
  • Fig. 3 is an end elevation (taken from the left in Fig. 1) of the quadding and centering mechanism as shown in normal position and set for a quadding operation;
  • Fig. 4 is a front elevation of the parts shown.
  • Fig. 5 is a horizontal section taken 5-5 of Fig. 4;
  • Fig, 6 is a vertical section takenthrough the on the, line locking devices for the jaw operating rod and,
  • the matrices i and the expansible spacebands 2 are composed in line in an assembler in the usual way and transferred to a. vertically movable transporter or first elevator 3, which thereupon descends to position the line between the left-hand jaw i and the right-hand jaw 5 (see Figs. 1 and 2) and in front of a slotted mold 6 indicated by the dotted lines in Fig. 2.
  • the mold then advances from the rear into contact with the line and with the two jaws for the slug casting operation, the line, priorto casting, being alined and justifiedin the same manner aswhen the machine is being operated under the usual conditions.
  • the mouthpiece of a melting pot (not shown) is advanced from the rear into contact with the rear face of the mold and molten metal then injected into the mold for the casting'of theslug against thecomposed' line.
  • themelting 4 pot is moved rearwardly out of contact with the mold and the latter likewise moved rearwardly out of contact with the composed line, whereupon the mold is carried around from its horizontal casting position to a vertical ejecting position by a three-quarter rotation of the mold disk 1, the first elevator in the meantime being raised to deliver thecomposed line to the matrix and spacebanddistributing devices and finally coming to rest in its original or line receiving position.
  • the melting pot is mounted upon a pair of supporting arms 8 (only one of which is shown in the drawings) pivoted at their lower ends upon a transverse rode. in the fixed vise frame ID.
  • the two jaws A and, 5 are mounted for movement in the vise frame in the customary manner, being carried by H which may be connected at its upper end to the respective jaws through the medium of two small but oppositely disposed bell crank levers l2 and I3 pivoted at M and I5 to the vise frame, the longer arms of said levers being connected by short links it and H to the supporting blocks for the respective jaws, and the shorter arms of said levers bein arranged for connection to or disconnection from the rod H.
  • asuitable device in the nature of a segmental grooved member 58 is provided at the upper end of the rod 1 i for connecting the jaws thereto, this grooved member being adjustable by'a handle 59. through a rack and pinion arrangement 26 so as selectively to connect either or both of the jaws to the rod as desired for quadding at either end of the line or for centering.
  • a second handle 2 pivoted at 22"
  • the rod l I is slidable in upper and lower-bearings in the vise frame and is operated through a train of connections, indicated generally by the reference numeral 26, from an edge cam (not shown) fast to the main shaft of the machine;
  • This cam which'makesione complete rotationat each cycle of-operationofthe machine, acts to movethe rodafirst downwardly to effect the inward or closing movement of. the jaws. andthen upwardlyto effect the outward -or..separating movement'ofthe'jaws.
  • Thejustification of the composed line is effected in the usual way by a two-stage upward thrust of the bar 21 against lower ends ofthe longer or pendant wedge sections of the spa'cebands to force them upwardly between the matrices and to ex'-. pand the line between the clamping jaws.
  • ' is'carried:'at the upper ends of two spaced vertical rods 28' and'29 slidable in upper and lower bearings in the vise frame. Between the bearings, the rods are formed with collars 30 and 3
  • a new formof locking device is provided 'to hold the rod II in its downwardly moved position during a quadding-or centering operation.
  • This locking device comprises a plurality of pawls or detents 40 (four shown by way of example) disposed horizontally one upon another in vertical stack formation and enclosed within a box or cage 4
  • the detents are each formed at their rear ends'with a series of uniformly spaced rack teeth for engagement with similar but oppositely disposed rack teeth 42 formed directly in the rod
  • the teeth 42 extend practically throughout the length of the rod II or, in any event, for a distance equal to the full extent of movement of the rod for quadding or centering.
  • the spacing of the teeth on both the rod and detents is of the orderof .084", which enables the teethjto be made strong enough to'resist shearing under the heavy line squeezing pressure Gater to be described) which is applied through the rod.
  • Such wide spacing of the teeth is permitted by arrangingthe teeth on the detentsin stepped or staggered relation as'between thedetents, such stepping or staggering being of the order of .021" and thus insuring engagement of at least one of the detents with the rod in any given position of the rod within that small dimension.
  • Figs. 7 and 8 whichshow the first and third detents (counting from the top) fully engaged with the rod in slightly different positions thereof.
  • the rack teeth Of'both the rodand detents are bevelled to facilitate their mutual en,- gagement, this bevelling acting (if need be) to depress the detents as a unit (as permitted by upon which the detents are supported, a front wall 4
  • Normally, or when the locking mechanism is inactive, the cage 4
  • is mounted for such backward and forward movements in a housing 43 which contains the upper bearing 25 for the rod At its forward end, the housing 43 is provided with a fixed nut 44 into which is threaded a short rotatable screw 45 formed at its rear end with a grooved stem portion which makes a swivel connection to a plate 46 attached to the cage 4
  • a short rotatable screw 45 formed at its rear end with a grooved stem portion which makes a swivel connection to a plate 46 attached to the cage 4
  • the new locking mechanism is operated by independent mechanism which, in the preferred embodiment illustrated, includes two sets of connections, one set actuated by the melting pot as it is swung into casting position and which effects the lockinga'ction before casting, and the other set actuated by the first elevator as it is moved upwardly from casting position and'which effects the unlocking action after casting.
  • a double-armed lever 50 Pinned to the forward end of the screw 45 is a double-armed lever 50 having one arm connected by a'bent vertically disposed link 5
  • A- long off-center tension spring 52 is employed tovhold the partsin oneiposition ori-the other.
  • This spring is anchored at its upper end tota pin 63 projecting laterally .from' the, supporting bracket 54 and is attached at its lower end to a' pin 64 projecting laterally from thefreeendof an arm 65 depending from the rock'shaft'53 be.- hindthe arm 52.
  • the spring 62 will be disposed rearwardly of the axis of the rock shaft. 53,. but when the parts are in their operative position, as. shown by the dotted lines, the spring will-be dis. posed forwardly of the axis of-the rockshaft.
  • the first elevator- Projecting forwardly from the screw turning lever 50, in overhanging relation thereto, is a cam plate formed on the upper end of the arm opposite that to which the lifte ing link 51 is attached.
  • the first elevator-is Tocooperate with the cam plate, the first elevator-is; provided with a small rocking lever H pivotedto the elevator at T2 and held normally in horizontal position by a spring 73 and set screw 14.
  • the lever At the rear, the lever is formed with an upstanding bevelled finger I5 which is arranged to engagethe under faceof the cam plate 10 when the screw turning lever-occupies the position indicated by the dotted lines in Fig.
  • th e locking detents 400i are mounted in the housing 43 not only for a rearward and forwardmovement, as above describedbut'also for a limited vertical or upwardand downward movement with; reference: thereto, itbeingnoted;
  • the grooved stem. portion; of th screw is designed to permit such upward and downward movements without breaking its swivel connec- 8
  • the plunger 86- is provided witha handle 82 extending down-. wardly through an opening in the bottom wall of the housing.
  • The'downward movement-of thelocking detents v; is; effected after they; have been engaged with the.,vertically movable ,rod. 1 l and CORSB-r quently is-impartedito, saidzrod in order-to. force the; clamping jaws. inward.” from, their line'cona tacting, positions to. squeeze the line before the; casting operation.
  • the mechanism employed for. the purpose is; substantially, the same as, that, more fully shown and described in said Hilpman patent, comprising a-foreeand-aftslide 90 having a pin and slot connection 91 with thehousing The rear 43 at oneside thereof (Figs. 3 and 4).
  • the slide 90 is hook-shaped to cooperate with -.a hooked plate 92, carried by a spring-actuated link 93- controlledv by a cam (not shown). onthe maincam shaft of the machine.
  • the slide v9i] isbent to provide a lip 94 arranged to engage-in front of a cam arm 95 pivotally-suspended from the free end of a lever. 95 pivoted at v91 to the housing 43 at the.
  • the lever 96 overlies the housing 43 and is formed with a lug which; passes through the top of-the housing ancl bears upon the uppermost detent 40.
  • thelip. 94 engagesandrocksthe cam; arm 95 which, by its engagement with the roller '98, draws the lever 96 downwardly'to apply the full downward pressure of the actuating connections to thelocking detents and through them to the rod l I. After the casting;operation-, and when.
  • roller arm 58 when the machine is conditioned for quadding' or centering, as indicated by the full lines in the drawings, the roller arm 58 will be located directly in frontof the plunger 59 and will tran'smit the rocking motion of the melting pot to the locking detents 40 to engage them with the verof the locking device.
  • the-locking device fafter the aligningmachinefequipped with aligning mechanism for the" composed line and with a meltingpot-rnovable to and'from casting position as well as with a transporter to carry the composedline toand from casting position and including, in combination,- a pair of line clamping jaws movable one toward the other in quadding, mechanism for effecting such quadding movement of the jaw, alocking device to hold? the jaw igits' "linefg'contactingiposition,
  • a slug casting machine equipped with aligning mechanism for the composed line and with a melting pot movable to and from casting posifor looking the justifyin mechanism to render' it'inoperative to expand-the line .Whenthe latter is quadded, and common manually adjustable means for rendering the pot actuated means inactive and the justifying mechanism active during a regular machine operation.
  • a vertically movable rod for effecting such quad-i ding movement of the jaw, said rod being provided with a series of uniformly spaced rack teeth, a plurality of detents having correspondin stepped relation to insure the engagement of one or another of the detents with the rodin minutely varying positions of the rod, a cage in which the locking detents are mounted and in which they are arranged horizontallyone upon another-in vertical stack formation but with engagement of'thedetents with and fromthelo vertically movable rod-and,slidable vertically in; opposite directions to. apply oppositevertical thrusts to the jdetents while engaged with the. rod; means: forefiecting such horizontal, move;

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  • Moulds For Moulding Plastics Or The Like (AREA)
US116700A 1949-09-20 1949-09-20 Slug casting machine Expired - Lifetime US2642180A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US116700A US2642180A (en) 1949-09-20 1949-09-20 Slug casting machine
DEM6041A DE835600C (de) 1949-09-20 1950-09-17 Schraubstock einer Matrizensetz- und Zeilengiessmaschine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US116700A US2642180A (en) 1949-09-20 1949-09-20 Slug casting machine

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US2642180A true US2642180A (en) 1953-06-16

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DE (1) DE835600C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699863A (en) * 1948-07-19 1955-01-18 Thomas H English Centering and quadding device
US3127486A (en) * 1961-03-06 1964-03-31 Siegler Corp Electric switch having object sensing operating means
US3502202A (en) * 1967-07-25 1970-03-24 Robert B Stemler Lead line device and system for typographical casting machines

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1941378A (en) * 1932-05-09 1933-12-26 Andrew James Madison Stretcher jack
US2053232A (en) * 1936-02-24 1936-09-01 Intertype Corp Line casting machine
US2092220A (en) * 1936-04-11 1937-09-07 Mergenthaler Linotype Gmbh Slug casting machine
US2100507A (en) * 1935-08-14 1937-11-30 Linotype Machinery Ltd Typographical slug casting machine
US2116035A (en) * 1936-12-10 1938-05-03 Mergenthaler Linotype Gmbh Slug casting machine
US2166170A (en) * 1936-09-18 1939-07-18 Mergenthaler Linotype Gmbh Slug-casting machine
US2255254A (en) * 1940-08-03 1941-09-09 Mergenthaler Linotype Gmbh Slug casting machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1941378A (en) * 1932-05-09 1933-12-26 Andrew James Madison Stretcher jack
US2100507A (en) * 1935-08-14 1937-11-30 Linotype Machinery Ltd Typographical slug casting machine
US2053232A (en) * 1936-02-24 1936-09-01 Intertype Corp Line casting machine
US2092220A (en) * 1936-04-11 1937-09-07 Mergenthaler Linotype Gmbh Slug casting machine
US2166170A (en) * 1936-09-18 1939-07-18 Mergenthaler Linotype Gmbh Slug-casting machine
US2116035A (en) * 1936-12-10 1938-05-03 Mergenthaler Linotype Gmbh Slug casting machine
US2255254A (en) * 1940-08-03 1941-09-09 Mergenthaler Linotype Gmbh Slug casting machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699863A (en) * 1948-07-19 1955-01-18 Thomas H English Centering and quadding device
US3127486A (en) * 1961-03-06 1964-03-31 Siegler Corp Electric switch having object sensing operating means
US3502202A (en) * 1967-07-25 1970-03-24 Robert B Stemler Lead line device and system for typographical casting machines

Also Published As

Publication number Publication date
DE835600C (de) 1952-04-03

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