US1255942A - Typographical casting-machine. - Google Patents

Description

3. SMITH.

- TYPOGRAPHICAL CASTING MACHINE. APPLICATION FILED mmao, 1915.

1 ,5,9%2. Patented Feb. 12, 1918.

"IN I SAMUEL SMITH, 0F BROOKLYN, NEW YORK, ASSIGNOR TO COMPANY, A CORPORATION OF NEW MERGENTHALER LIN'OTYPE YORK.

TYPOGRAPHICAL CASTING-MACHINE.

Specification of Letters Patent.

Patented Feb, i2, 191%.

Application filed January 30, 1915. Serial N 0. 5,197.

To all whom it may concern Be it known that I, SAMUEL SMITH, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in 'Iypographical Casting-Machines, of which the following is a specification, reference being had therein to the accompanying drawin My invention relates to typographical casting machines, such for instance as linotype machines of the class represented in United States Letters Patent to O. Morgenthaler, No. 436,532, wherein a bar or slug is cast in a slotted mold against a composed line of matrices, which form the type characters thereon, and thereafter is ejected from the mold and carried between a pair of trimming knives into a receiving galley, the knives acting on the opposite side faces of the slug to bring it to the required thickness.

For obvious and well-known reasons, it is necessary that the slug be trimmed with great accuracy, and it is therefore important that the cutting edges of the knives be-absolutely. straight and parallel. This condition, however, is diflicult to maintain in practice, as it is found, due to one cause or another, such for instance as warping or regrindlng, that the cutting edges of the knives will lose their parallelism and consequently fail to trim the slug with the proper exactitude.

In order to overcome these objections, I propose to divide one or both of the knives transversely into short complementary sections, and to provide means whereby they may be adjusted relatively or independently to bring their cutting edges into proper alinement. The cutting edges of such short sections can be kept practically straight, as there is very little or no tendency of the sections to warp, and no substantial difficulty involved in regrinding them with accuracy. As a result, when the sections are mounted in the machine, with the capability of independent adjustment, a long straight cutting edge to trim slugs ofany length may be readily provided. Furtl1ermore, the sec-.

tions are free to be adjusted to compensate for wear or to cooperate in such other manner as their independent adjustment will permit.

In the accompanying drawing, I have shown my invention in preferred form and by way of example, and as applied to the specific style of machine already mentioned, but obviously many changes and variations may be made therein, Which will still be comprised within its spirit. Generally speaking, I desire it to be understood that I do not limit myself to any specific form or embodiment, except in so far as such limitations are specified in the claims.

Referring to the drawing:

Figure l is a horizontal section taken through a portion of a linotype machine, having my invention applied thereto;

Fig. 2 is a side view, partly broken away, of one of the trimming knives as mounted in the machine; and

Fig. 3 is a detached perspective View of the knife with it's sections separated.

The slug A is cast in the mold B and subsequently removed therefrom by the ejector C, which carries it between the trimming knives D and E and into the receiving galley F at the front of the machine. The knife D is fixed in position, while the knife E is carried upon an adjustable slide G, whose position is controlled and maintained by the adjusting mechanism II. All the parts so far described are or may be substantially the same as those presented in United States Letters Patent No. 1,002,281, to D. S. Kennedy.

According to my present invention, I divide the adjustable knife E into two complementary sections, E and E which are held in place upon the slide G by the clamping screws J, passing through openings J in the sections. It will be noted that the openings J are somewhat enlarged in order to permit the edgewise or angular adjustment of the sections. These adjustments are effected by means of set screws K, carried by the slide G, there being two such screws for each of the sections, and arranged to engage the rear edge of each section near its opposite ends. By this construction, the knife sections may beadjusted independentlyof each other, either edgewise or angularly, to bring their cutting edges into exact alinement and into parallelism with the edge of the companion knife D, and due to theirlocationupon .the adjustable slide G, the knife sections may be set in different positionsifrom:therknife ,D without disturbing their relative posi- Each of the, sections is; a stud L which is entions on the slide. also provided with circled by a spring M, bearing-againstits head portion and, the slide G respectively, and tending to urge the corresponding sec-, tion away from the knife I)" and hold it in firm contact with the set screws K. It will beunderstood of course that the clamping screwsJ are loosenedprevious to the adjistment'of the'sections and tightened therea ter.

\Vhil'e, as before stated, the independent adjustment of theknife sections is intended primarily to effect the alinement of their cutting edges and their, parallelism with the edge of the fix'ed'knife D, it is to be understood that other uses may be made thereof. For instance, in some cases it would be advantageous to set one of'the knife sections further from the fixed knife than its complementary section, so as to trim,,for example, a slug thicker at oneendthanat the other, or a slug having printingcharacters at one end of greater height than those at the other end.

My invention is to be distinguished from known constructions whereinone of I the knives isflformed with;v a sectionwhich can bemovedfrom its operative position to pers mitthe passage of an oyerhanging; type character on the slug. lnthesearrangemerits, the moyableknifesection has no. such capability: of adj ustmentas is present in my construction; it merely occupiesvtwo P051:

tions, one operative and the otherzinoperas tive. It was not 1ntendedtobe, nor can it be, setin different angular positionsto Vina sureitsali-nement with themain. section .of the;knifeor. its ;.parallelism with th'eedge of the other knife, or adjusted independently was to be setin different operative positions in relation to the fixed knife. Having thus described' my invention, its construction and mode of. operation, what I claim and desire to secure by Letters'Patent oftheUnited Statesisas follows:

, 1.- In a typographical, casting machine,

the combinat onof aislug trimming knife divided into a plurality of; complementary sections,v and 5 means whereby the said secs tions be set in different" operative. an

gular; positions to bring their' cutting, edges ntea r pev, linemen 2. In a typographical casting machine,

the combination of a slug trimming knife divided into a plurality of complementary sections,- a support whereon they are independently mounted, and set screws bearing against the rearedges of the sectionsforad-i justing them, angularly relatively to each other to bring their cutting edges into PIOPQIEEIllHBmQILt-J 3. In a typographical casting machine,

tl'lBzi combination of two slug;

knives, one normally fixed in position, a supporting slide carrying the other knife and adjustable laterally to vary the distance between it andithe fixed knife; the "said 'iad justable knife b ing divided into jcompleg inentary sections arranged] end: to iend; and means whereby one ofthe sections of the adjustable knife may be shifted; laterally. toward andfromfthe' fixedl knife to vary the: distance thereb'etween independently of the adj ustment of ,the .supporting slide;

l. In a. typographical casting machine, the combination off two slug trimming knives, oneoffwhichj is dividedinto'complef mentary sections, andimeans whereby each of'fsaid sections may be adjusted angnlarly independently to different operative; ppsi tions to bring its-cutting edge iinto .paral lelismflwith' that of theother' knife-1,.

5; In, a. typographical casting machine, the combination offa. slug trimming knife divided. intora plurality offc mPl mer-itary sections, and fa'fsu-pport therefor," each of said section's-being mounted on the'support 1 so asitovbe rocked or tilted edgewise inde= pendently of 1 another section, .for the pur posevv described. ,7 j

6. In a typogr'aphicalfimfl. Shine, the com bination of; a" sli'lg trimming; knife divided into 1a plurality of fcompleme ntary sections, a support .whjereon they are; independently mounted, andfa pair of" set screws; bearing againstathe. rear tions and ad' pted to adjust it], angularly' iin+ dependentlyof another section.

7 In a typographical caStingmaChine, the. combination of two slug trimming knives, a' supporting slide carrying,thefotherknife and adjustable laterally to vary the distance between it andffthfe fixed knife, thesaid adjustable knife being d'ivided'into. a plurality offcomplementary sections arrangedend ,to

edge ofjeach of said secendand'each offwhich is supported-oaths, I

slide so as :to be adjustable laterally toward andffrom the fixedknifeto vary thedis 11 one normally fixedfin position, and I set screws bearing against the rear edges of In testimony whereof, I have affixed my the knife1 sections to adjulst 1them {c0 difl'ersignature in presence of two Witnesses. ent an u ar positions, anc tle saic sections 4 being Secured to the slide by means of fas- SAMUEL SMITH 5 tening screws passing through enlarged Witnesses:

openings in the sections, all for the purpose ELISABETH G. McNARY, described. EDWARD GRANT.

flopies or this patent may be obtained for five cents each, by addressing the Commissioner of Eatents,

1 Washington, D. G.

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