United States or Caribbean Netherlands ? Vote for the TOP Country of the Week !
The line of matrices is pressed against and closes the front of the mold, the characters on the matrices standing directly opposite the slot in the mold, as shown. The back of the mold communicates with and is closed by the mouth of a melting-pot M, containing a supply of molten metal and heated by a Bunsen burner underneath.
The descending matrices also pass beneath a long depending spring g4, which should be so adjusted as barely to permit the passage of the thickest matrix. Figs. 11 and 12 show the casting mechanism in vertical section from front to rear.
In 1838, Spencer, of London, made casts of coins, and cast in intaglio from the matrices thus formed; in the same year Jacobi, of Dorpat, in Russia, made casts by electro deposit, which caused him to be put in charge of the work of gilding the dome of St. Isaac at St. Petersburg. Electrotyping for the purposes of printing originated with Mr.
"Ah!" sighed the old man, "if I could only write my great book! It is the pleasure debarred me. Years ago I started to collect material; but my affliction came, and now I can only feel the matrices and picture them in my mind. I see through your eyes, dear Gabrielle.
While the justified line is locked fast between the jaws, the elevator, and the mold, the plunger m2 in the pot descends and drives the molten metal before it through the spout or mouth of the pot into the mold, which is filled under pressure, so that a solid slug is produced against the matrices.
Within the pot is a vertical pump-plunger which acts at the proper time to drive the molten metal through the perforated mouth of the pot into the mold and into all the characters in the matrices. The metal, solidifying, forms a slug or linotype bearing on its edge, in relief, type-characters produced from the matrices.
The teeth of the matrix for each letter differ in number or arrangement, or both, from the teeth of matrices bearing other letters, and the teeth on the lower edge of the distributor bar are correspondingly varied in arrangement at different points in the length of the bar.
In the plain stone pavement there are crowded together, to the west of the steps, as many as eleven matrices of brasses. #The Organ#, on the screen beneath the choir arch, owes its present form to Sir G. Scott, who divided it, placing half at either end of the screen, and thus preserved the vista of the choir, when he designed the new case.
It is considered to possess the richest collection in the world of matrices and fonts of types, having them in every written language, and when Pope Pius VII visited the establishment, he was presented the Lord's Prayer in 150 languages.
And then he gave the girl the titles of several works, which she got down from the shelves, and from which she read extracts after some careful search. The sulphur-casts sent with the matrices she placed carefully with her father's collection, and during the remainder of the evening they were occupied in replying to several letters regarding estate matters.
Word Of The Day