US1663541A - Typesetting and line-casting machine - Google Patents

Description

March 21, 192s. 1,663,541

y v Y W. BUSWELL TYPE SETTING AND LINE CASTING MACHINE A Filed 18.11.10,4 1925 yx I y QI Patented Mar. 27, 1928.

y UNITED'v STATES UParl.=;i-1r OFFICE.

WALTER BUSWELL, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR T0 STANDARD COM- POSITOR AKTIENGESELLSCHAFT, OF BERLIN., `GER-MANY.

TYPESETTING AND LINE-CASTING MACHINE.

Application filed January 10, 1925, Serial No. 1,598, and-in` Germany February 14, 1924.

This invent-ion relates to type setting and type bai casting machines embodying a rotatable mold carrier in the forni of a toothed wheel and driven by a toothed wheel meshing with the teeth of said carrier andopcrative to intermittently advance the carrier to position the molds relative to the. casting means and to meansto eject the cast type bars from the molds. As is well known there .is more or less lost or idle motion between a toothed driver and a toothed driven member and this lost motion becomes more pronounced when the teeth become worn. It is therefore impossible to accurately and correctly position the, carrier relative to the y casting` means and ejecting means which results in defects in the Cast type bars` and` moreover an inaccurate castingY position results in a premature wearing lout oi? thej matrices. Y i n y It is the object of the present invention to overcome the above disadvantages and to provide means for accurately positioning the carrier relative to the casting means and to the means .tor ejecting the cast lines by t-he provision of braking mechanism which is operativo when the casting wheel approaches either the casting position or the eiecting position. which braking mechanism is gradually applied and is most e-iectively applied when said wheel reaches said position, thereby maintaining the sides of the teeth of both driving and driven wheels in constant contact so' that'there will be no free movement oiv the *casting wheel and assuring the accurate positioning i of 1 said wheel.

In the drawing accompanying and forminfnT a part ofthis speciiication there is shown an embodiment of the yinvention in which Figure 1 is an elevational view of the casting wheel of a type bar casting machine and the n y Y tion. A cam or eccentric 4C lined to the pinion view, partly in section,

wheel 1 arranged .with circularly disposed movement to position the same relative to Athe 'tiisedinetal carrying; pot and away from said position, but as this does not constitute an essential part ot the invention illust-ration v and description thereof is not deemed necessary to an understanding of the invention Y by one versed in the art. Assuming the casting. wheel, as shown in Figure l, has been moved to position relative to the casting means, in which position axial movement is imparted thereto to move it toward a iiXed stop member 16. s During such movement of the casting wheel one of a series of perforations 14V in the casting wheel intermediate the mold openings 8 is slidably engaged by a- .pin 15 carried by the stop member whereby the casting wheel andthe moldA is `aided in its move-ment toward and away from 'ther castingv means. In order that the casting` wheelwill he brought to rest with a. perforationl in alinenient or register with the positionineV pin 15. and to assure the accurate positioning of the mold relative to the casting means and the' ejecting means for the cast typebar, brakingV means is provided. This braking means comprises a pinion 2 meshingwith the teeth of the casting wheel in somewhat opposed relation to they pinion 17. said pinion 2 being fixed upon a 'spindle 18 rotatably mounted in a tired part of the framework. The ratio between the pinion 2 and casting wheel or carrier in the present instance isti to l.V although this may be of any desired-,ratio to suit a. particular condishaft-l. which cam ,is engaged by a roller 6 carriedv in a bifurcation at the end or a phinger 7 slidably mounted in an extension 5 ofthe bearingr support for the pinion 13,'the vopposite reduced end of the plunger slidably engaging ina bearing 9 threaded into the end of the plunger supporto. The plunger is forcibly though yieldingly urged in a di- `rection with the roller 6 to engage with, the

9. The pressure With which the".` roller .is urged into engagement with the eccentric4 may be increased or decreased by screwing the bea-ring 9- intos and;y out; from thefplunger" support thereby increasingiv and decreasing the tension of the spring 8, the bearing being locked in adjusted positionbyJ a`r set. screw 1l threaded into an opening 12 in the plunger support 5 engagingthe threadof the bearing. To prevent rotation of the plunger should the same be made of circularv form in cross section a. set screw 10-is provided with a part to-engage in alongitudinalv slot inthe plunger.

During the initial movement' of the' driving piniony from the positionof rest as indicated in the'dravvi'ngthe'roller 6 Willride'oif from the high portion of t-he cam gradually reducingl the force ywitl1-wlii`ch the spring urges the roller into engagement' with the cam, whichwill continue-untill the pinion has moved through an arc of`18G^degrees thereby permitting free and easy' rotation ofA the creasing force appliedto retard: the rotation of the pinion andthe maximum. force will be applied when the pinion has been given a rotation of SGOdegrees' or a completey revolution and it reaches its 'position of rest thereby precluding any independent' movement of. the casting wheel or carrier and assuring an accurate positioning of the: carrier l with a perforation 14'. therein in alinement with the positioning pin 1'5L and the molds relative to the casting meansfand the means to eject the cast type bar fromA `the mold.

Having thus described my inventionVI claim:

l. In typebar casting machines and the like, a rotatable toothed -mold carrying wheel, means to rotate said wheel relative to the cast-ing and ejecting positions,iand'1neans to co-operate with the mold carrying wheel operative to forcibly and yieldingly retard the movement of said Wheel as it approaches the casting; and ejecting positions.v

2. In type bar casting machines andthe like, a rotatable toothed mold carryingr wheel, a pinion to .mesh Withthe .teeth of said wheel, and means to`V coo.p'erate withsaid pinion to 4forciblyand yieldinglyretard the movementthereof' andlof the mold4 carrying wheel as it approaches its castingI or ejecting position.

3. In type bar castingmachines and-A the like, a rotatable toothed moldcarrying wheel, a pinion to mesh with said wheel, an eccentric rotatable with thel pini0n,.. and means to engage thel eccentric to"eXert aretarding force to the movement of the pinion at a predetermined point intherotation thereof.

AitxIan typebar casting' machines and the like, a rotatable toothed mold carrying Wheel, apinion. to mesh with the teeth of said wheel, and braking means operative to exert aA retardingforce tothe rotation of the pinion "like, a rotatable toothed mold carrying wheel', a pinion tomesh withvsaid wheel, and means to exertv a retarding forcev upon the pinion; tol the movement thereofat the terminationvv of"A each revolution thereof.

6; In' typen bar castingy machines and the like, a rotatableV toot-hed mold carrying wheel, a pinionto mesh with said Wheel, and brak-ingmeans` to retard the rot-ation ofn the pinion, said braking means being of gradually increasing force and of greatest force when the pinion approaches the termination of as revolutiony thereofv andfthe mold carrying Wlieely rotated a predetermined distance, and said braking force being gradually reducedlduring the initial portion of a successive revolution'of the' pinion.

7l In type'bar ,casting machines and the like, a rotatable toothed mold carrying wheel, a pinion tol mesh' with theI teeth of said wheel, andl braking means to exert a retarding: force to the rotation of the pinion at apredetermined point'y in the rotation thereof, comprising an eccentric rotatable with theL pinion, a plunger yieldingly urged in a direction towardthe eccentric, and a roller, carried by said plunger to'engage they eccentric.

8. In type bar casting machinesand the like, a .rotatable toothed mold carrying wheel, a pinion to meshV with the teeth of said`A wheel', and braking means operative to exert a retardingforce to the rotation ofthe `pinion at ai predetermined point intherotation thereof, comprising an eccentric rotatable witlr the` pinion, a slidably supported plunger to have movement toward and away from the eccentric and carryinga roller to engage the eccentric, and a springto yield` inglyf urged the'plunger in a direction toward lthe eccentric.

Signed at' Bridgeport in the county of Fairfield" and State" of Connecticut this' 5th day ofXIannary, 1925i WALTER BUSW'ELL.

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