US785375A - Die-case equipment for type-machines. - Google Patents

Description

PATENTED MAR. 21, 1-905.

F. H. PIERPONT. I DIE GASB EQUIPMENT FOR TYPE MACHINES.

APPLICATION FILED SEPT. 15.3904.

No. 785,375. Patented March 21, 1905.

NITED STATES PATENT O FRANK HIN MAN PIERPONT, OF HORLEY, ENGLAND, ASSIGNOR TO LAN STON MONOTYPE MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF VIRGINIA.

DIE-CASE EQUIPMENT FOR TYPE-MACHINES. V

SPECIFICATION forming part of Letters Patent N0. 785,37 5, dated March 21, 1905.

Application filed September 15, 1904:. Serial No. 224,599.

To whom it y COTWWW' assembled in the frame they will occupy and Be it known that I, FRANK HINMAN PIER- retain the proper relative positions. More- PoNT, a citizen of the United States, residing over, in use the separately-movable matrix- 5 at Horley, England, have invented certain blocks, with their conical centering-recesses,

, new and useful Improvementsin Die-Case have developed certain drawbacks and defects Equipment for Type-Machines; andIdo herewhich it is one of the principal objects of this by declare the following to be a full, clear, invention toavoid or removesuch, for exand exact description of the same, reference ample, as the clogging of the centering cavi- 55 being had to the accompanying drawings, ties, the enlargement and distortion of said forming a part of this specification, and to cavities, due to the fact that the conical centhe figures of reference marked thereon. tering-pin frequently takes but a line bearing The present invention relates to the conon one side of its seat, the absence of means struction of die or matrix cases and the final whereby high and low quads and spaces may 60 centering mechanism therefor, and is adapted be produced. The depth of drive required for 5 for use in connection with type-casting and the matrix-cavities is such as that many reanalogous machines wherein a plurality of cuts are necessary, and owing to the reladies or matrices are associated together to be tively small contacting-surface presented to acted upon by centering or positioning dethe mold the latter soon becomes worn, ne- 5 vice-s in a manner to locate individual dies or cessitating frequent resurfacing and adjustmatrices opposite a station or mold common ment.

to the series; and it is specially designed for The invention consists in the construction, use in connection with type casting and comcombination, and arrangement of parts hereposing machines of the kind illustrated in inafter described, the novel features being 7 Patents No. 625,998, of May 30, 1899, to specified in the claims.

5 J. S. Bancroft, and No. 633,088, of Septem- In the accompanyingdrawings, illustrating ber 12, 1899, to Tolbert Lanston, both for ima preferred form of embodiment of the invenprovements in type casting and composing tion, Figure 1 is a side elevation, partly in machines. section, of the die-case or matrix-block and 75 It has been usual heretofore to provide the the centering-plunger. Fig. 2 is an end ele- 3 die-case with a frame to which the centering vation of a portion of the matrix-block, showmechanism is connected for adjustment and ing'the location of one of the;clam1;)ing-bolts. in which is assembled a series of independent Fig. 3 is a top plan view, and Fig. 4 a bottom and separately-movable blocks bearing the plan view, of a section of the matrix-block. 0 characters. Usually each block has been pro- Fig. 5 is a perspective view of a section of the vided at its end opposite the character with bottom or face plate. Fig. 6 is an end view a conical cavity to receive the correspondof the centering-plunger. Fig. 7 is a peringly-shaped end of the centering-plunger by spective view of a type. means of which the selected block brought The same numerals designate like parts in 5 to position by the centering mechanism is the several views.

5 4 finally centered and clamped upon the open The matrix-block is preferably formed in end of the mold. Although highly satisfacthree sectionsto wit, a back or centering tory results have been obtained by the use of plate 1, a front or faceplate 2, and an interdie-cases so constructed,theirmanufactureand mediate or matrix plate 3-said sections being 9 maintenance is expensive as compared with secured together to form an integral structhe present system, due in part to the skill ture adapted to be inserted and held within required and time consumed in justifying the the die-case frames of the prior patents mencharacters on the separate blocks so that when tioned, replacing therein the series of separate matrices and their supports heretofore employed. The die-case frame and mold are indicated by dotted lines in Fig. 1.

The matrix-plate 3 consists of a single piece of metal, preferably copper or gun-metal, in one face of which the series of characters comprising the font are driven or otherwise formed. The entire series of characters may be driven in one or several operations by punches suitably arranged and operated, or they may be driven in groups of a single row, or otherwise. It is not deemed necessary to enter into a detailed description of the methods of mounting and securing the punches for this operation, as there are several ways in which it may be done, it being sufficient for present purposes to state that the matrixcavities are arranged and justified in rows in two directions, being spaced uniformly in one direction and differentially in the other after the plan described in the prior patents mentioned to accommodate the two adjusting or centering systems there described. It may be noted, however, that the drive for the characters need not be so deep as with the separate matrix-blocks, it being sufiicient if they are just deep enough for a good countersay .023 of an inch, which is a drive that the punches will stand with safety. It is not essential that the matrix-plate should be in one piece, although such is preferred, as it is obvious it might be formed in sections each containing one or more rows of characters, said sections or bars being rigidly united and constituting, in efiect, a single plate. Owing to the relatively shallow drive, only a small portion or section of the character end of the type is cast or otherwise formed in the matrix-plate 3, the end of the type-body immediately adjacent the character and upon which it is sustained being formed in the face-plate 2. This face-plate 2, preferably built up of a series of bars 4:, rigidly secured together, as by rivets or rods 5, or, if desired, composed of a single piece of metal, is provided with an opening 6 opposite and in register with each matrix-cavity. The openings 6 are slightly less in height columnwise than the typebody to be produced and not quite so wide individually as the unit of the character opposite which the opening is located, so that the cross-section of the end of the type bearing the character will be slightly less in area than the adjacent portions of the body, as

illustrated in Fig. 7, wherein the line my represents the face and a small portion of the neck as formed or cast in the matrix-cavity in plate 3, while the line 1 designates the neck or portion formed in plate 2, the remainder of the body being formed in the mold proper.

The face-plate 2 is preferably approximately one-eighth of an inch in thickness, so that by omitting the perforations 6 or forming recesses of greater or less depth therein at those points brought opposite the mold when quads or spaces are to be formed the latter can be made of any height desired, and said openings 6 may approximate in section the character or the type-body, preferably the latter, and may be formed on a taper, as shown, to facilitate withdrawal after the cast.

Heretofore it has been possible in machines of this kind to cast quads or spaces but .050 inch shorter than the character type; but with the present invention they may be .145 inch shorter or approximately the same length as type-founders short quads. The danger or liability of the quads or spaces blocking up in printing is thus avoided. The face-plate 2 being flat and hard, its contact with the mold will be firm and uniform, owing to the extended bearing-face presented, thereby diminishing wear and avoiding the necessity of frequent regrinding of the matrix-face of the mold, such as was incident to the use of separate matrix-blocks and very objectionable where adjustable molds are employed. The block-plate 1 is equipped with aseries of frusto-pyramidal projections 7, symmetrically disposed at equal distances apart in two directions at right angles, thus presenting two series of parallel grooves extending in transverse planes, from which any obstruction or dirt can be readily removed by means of a brush or other convenient implement.

The centering-plunger 8, which effects the final centering of the selected matrix and holds it tightly in contact with the face of the mold when the cast is being made, is equipped on its engaging surface with transverse wedge-shaped projections or ribs 9, extending parallel with the two sets of grooves or recesses on the back plate 1 and adapted to enter szfid grooves and in so doing to not only center but to accurately position the matrixcavity. The opposing inclines on the back plate 1 and plunger 8 possess the advantages of the conical plunger and cooperating seat of the prior machines so far as the final centering of the matrix-cavity is concerned; but they possess an additional advantage or function in that they operate to fix the angular position of the character in its relation to the mold, and thus preserve the proper relation of the character to the sides of the body upon which it is formed. This action is due to the fact that the gaging-surfaces are located or extended on lines radial to the axis or centering-point and at two or more points in fixed angular relation thereto. Thus the plunger not only accurately centers the matrix, but it corrects angular displacement of the character due to the twisting of the matrix-block. It is not essential that the projections or ribs 9 on the plunger should actually intersect at the center, as shown, for the same effect would be produced if the portion within the dotted circle, Fig. 6, was omitted, in which case the four remaining ribs or projections would serve equally well for positioning the matrix.

As applied to machines now in use the only.

change required in addition to the substituted matrix-block and plunger is a reduction in height of the mold by .095 inch in order to bring the type to standard length.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A matrix-block for type-machines such as described, provided with a matrix-cavity corresponding to the character and a small section of the body adjacent thereto, combined with a mold the cross-sectional area of whose cavity is greater than that ofthe matrix-cavity.

2. The combination to form a sectional matrixblock for type machines such as described, of a matrix-section containing the drive, and a shoulder-section containing a perforation or cavity registering with thedrive and of smaller cross-section than the typebody.

3. A matrix-block for type-machines such as described, comprising three plates or sections to wit; a matrix-section containing the drive, a front plate provided with an opening in register with the drive, and a centering or back plate applied to the matrix-section and provided with centering means.

4. A matrix-block for type-machines such as described, provided with an integral matrixsection containing the drive, and a sectional shoulder-section.

5. A matrix-block for type-machines such as described, provided with a matrix-plate containing the drive anda front plate or section secured thereto and containinga shoulder-perforation registering with the drive, said lastnamed section being divided ona line perpendicular to the face of the matrix-plate.

6. A matrix-block for type-machines such as described provided on its rear face with a plurality of grooves in intersecting planes for cooperation with a ribbed centering-plunger.

7. A matrix-block for ty pe-machines such as described provided with a plurality of character-matrices symmetrically arranged in rows in two directions and with a corresponding series of projections forming intersecting grooves or channels for the reception of the final centering devices.

8. A die-case or matrix-block such as described, provided with a series of characters and a com plemental series of projections symmetrically arranged in rows in two directions.

9. A die-case or matrix-block such as described provided with a series of characters and a complemental series of pyramidal projections symmetrically disposed in rows in two directions.

10. A die-case or matrix-block provided with a series of characters and a complemental series of pyramidal projections symmetrically arranged in rows in two directions and adapted to move in two directions to bring any character opposite a centering-point in combination with a centering-plunger provided with two or more ribs or projections disposed on intersecting lines and adapted to enter between the projections on the die-case or matrix-block, to position the selected character.

' 11. In combination with a multiple-character die-case or matrix-block provided with a series of pyramidalprojections symmetrically arranged in rows in two directions, of a centering-plunger provided with a plurality of gaging surfaces or ribs registering with the projections in two directions.

FRANK HINMAN PIERPONT.

\Vitnesses:

LESLIE G. WHEELER, WALTER E. ROCHE.

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