US757099A - Linotype-machine. - Google Patents

Description

No. '757,099. PATENTED APR. 12, 1904- P.T.D0DGE. LINOTYPE MACHINE.

APPLICIATION FILED D3016 1903.

N0 MODEL.

3144mm fez witnesses tri 757,099.

llisirnn Patented April 12 19m n 'PHILIP T. DODGE, OF BRGOKLYN, NEW YORK, ASSlIGllGR TU THALER LINGTYPE CUMPELWY, A COEPOithTlDN HEY? "(EEK l.

LiNQ'lYPE hFlAQHENE,

SPEGIFICATIGN forming part of Letters Patent No. i57,099, dated April 12%, lie-Wis.

' Application fileclDeeembor 16, 1903. Serial lie. 185,368. (No model.)

To all whom it mcti conceive:

Be it known that LPHILIP T. DODGE, of Brooklyn, county of Kings, and State of New York, have invented a new and useful improvement in Linotypelviachines, of which the following is a specification.

My invention has reference to improve ments in the Mergenthaler linotype and kindred machines wherein linotypes or printingloa'rs of type-metal are cast in a slotted mold against a line of matrices at its front. in this class of machines the base of the slug is trimmed flush with the hack of the mold. While it is contained therein, this ior the purpose of rendering" the slug exactly type high. The metal is delivered into the mold from the mouth of a melting-pot, which closes temporarily against its rear face, and when the metal and the pot are separated the ease of the slug is commonly irregular and frequently olf such height that a large amount of metal must he removed. lln practice it is found that when it is attempted to remove this metal by a single shaving-knife, especially if the metal is of such a hard character as is used in printing, the knife is subjected to severe and dangerous strain and frequently the slug is loosened and displaced in the mold, so that it is trimmed to an improper height.

The object of my invention is to overcome this dificulty; and to this end it consists in the combination, with the mold of two trimming-knives or a knife having two trimming edges, the first adapted to remove the greater portion of the metal and bring the slug to ap proximately the required height and the second acting thereafter to remove the remaining metal and by a smooth finishing cut bring the slug to the final dimensions required.

In the accompanying drawings, Figure 1 represents a vertical section through the mold and trimming-knives of a l /iergenthaler machine constructed in accordance with my in vention. Figlflfi represents a douhle edged knife as constructed in a single piece.

A represents the slotted mold in which the linotype is cast rigidly secured in an in r mittingly-rotating Wheel B, by which it is we sented first in position to cooperate with the matrices and the not in order that the slug 5 may be cast therein and thereafter rotated. to carry it past the trimming-knives and finally to the point at which the slug is ejected.

These parts will all he oi. the ordinary construcion and arrangement. 5 5

C and D represent the two knives for tr' mine: the hose of the slug, supported in 7, main frame E and secured by plate otherwise supported and secured; The upper knife U is arranged with its cutting edge a no slight distance away from the face of the passing mold A, in which the slug contained, While the lower Knife l) is arranged so that its edge bears against and passes closel over the rear face oi the mold. The oi- 6a the mold serves to the knife and corn trol its action, causing it to cut the slag in a straight line and limiting e amount r metal removed and determining the hcightoi the slug". When therefore, the advanc mold carries the rear edge oi the slug" p: knife (1, it acts to cut away or rernoi l greater portion of the protruding metal l whieh the knife D in turn acts to remoye the remaining metal and illil'il the base of the sing I 5 finsh with the rear face of the mold.

;t is manifest that the form of the lflli't' the devices for supporting, secn justir them may he chenged at W that tnerc is no deeartnre from t action herein described.

As shown in the dr" 1 slotted longitudinally to "permit of r pendent adjustment to from th are separated by plate or Washer -n to leave an openi throt h which the co produced by lower may readiiy es: cape. The knives may he supported against end motion and lo" means of liner plates I, inserted behind them shown. 9

the drawings or in. any otl" r suitable in The lznife shown 2 is gle piece Vance oi the othe space or onemn escape laterally.

It will be observed that under my organize. tion of parts I am enabled by the first knife to remove from the base of the slug the greater part of the metal protruding beyond the mold without subjecting the slug to pressure against its base or to such strain as would be liable to disturb its position in the mold and that thereafter by the second blade, arranged to rest against and to be controlled by the rear face of the maid, I am enabled to remove the remaining excess of metal and to dress the basev of the slug flush with the back of the mold. in short, the employment of the two knives acting successively is of peculiar and special advantage in the linotype-machine in that I am enabled to remove the exess of metal from the slug without disturbing the latter in the mold and also to give to the base of the slnge smoothness and accuracy of finish not obtainable by 2. single knife required to serve the double purpose of removing the surplus metal romeo and making the finishing cut or out which determines the height.

Having-thus described my invention, what I claim is- In a linotype-machine and in combination with a mold wherein the slug or linotype is past, two successively-acting knives, the first arranged to remove-the principal portion of the protruding metal, and the second acting 3 directly against the back of the mold, whereby :it is adapted to give a. smooth finishing cut and to render the slug of definite and uniform height.

In testimony whereof I hereunto set my 35 hand, this 3d day of December, 1903. in the presence of two attesting witnesses.

PHILIP T. DODGE.

Witnesses:

JOHN F. GEoRon, N. R. KENNEDY.

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