US1328146A - Matrix j - Google Patents

Description

H. R. FREUND.

MATRIX FOR TYPOGRAPHICAL MACHINES.

APPLICATION FILED NOV- 3.1919.

Patented J an. 13, 1920. Q

d\ n Y WE m M. N z

Mm W WITNESSES "W dw UNITE SAT PAENT OFFICE.

HERMAN R. FREUND, 0F BROOKLYN, ITEVT YORK, ASSIGNGR TO INTERTYPE CORPORA- TION, (3F BROOKLYN, NEVJ YORK, A CORPORATION OF NEW YORK.

MATRIX FOB TYPQGBAPHICAL MACHINES.

Specification of Letters Patent.

Patented Jan. 13, 1920.

Application filed November 3, 1919. Serial No. 385,305.

To all whom it may concern:

Be it known that I, HERMAN R. FREUND, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in Matrices for Typographical Machines, of which the following is a specification The present invention relates to improvements in matrices for typographical machines, and more especially to those of the type which circulate through the machine from the magazine to the casting point and are subsequently returned to the magazine by distributing mechanism which embodies a ribbed combination rail from which the matrices hang or are suspended, and from which the matrices drop at the entrances of the respective magazine channels.

Typographical machines of the linotype class employ circulating matrices which cooperate with a combination rail in the manner described and the handling of thin matrices in the manner stated presented no serious difficulty while these matrices were used. More recent developments in typographical machines, however, require the use of very thick matrices to enable the casting of large face display or advertising type characters, and the handling of such thick matrices in the same manner usual with thin matrices has presented certain difficulties, due pri marily to the fact that the teeth which support the matrix while it advances along the combination rail of the distributer have been heretofore relatively short in length and were located at the advance side of the matrix, while the center of weight of the matrix is located about midway between the advance and rear sides of the matrix, in consequence of which the matrix, when so constructed, will hang from the ribbed combination rail in an inclined position instead of an upright or plumb position. This has resulted in faulty or improper distribution of the matrices and it has also caused disengagement of the matrices from the con veyer screws which are used to advance the matrices along the combination rail.

The primary object of the present invention is to provide a novel and improved matrix which is capable of use in the casting of large type such as those employed for advertising and display printing and which obviates all of the objections herein referred to, the matrix, according to the present invention having its supporting teeth so formed and arranged that the matrix will be suspended in a true vertical or upright position as it travels along the combination rail, and hence correct distribution of the matrices is insured and the disengagement of the matrices from the conveyor screws is prevented.

In the accompanying drawing Figure l is a perspective view of a partially completed matrix to be made in accordance with the present invention.

Fig. 2 is a view similar to Fig. 1 showing the matrix in a further stage of completion.

Fig. 3 is a perspective view of the matrix showing it in a still further stage of completion.

Fig. l is a perspective View of the matrix in its complete form, except that it has a full set of teeth instead of a combination of teeth and tooth spaces.

Fig. 5 is a side elevation of a portion of the ribbed combination rail of the distributer showing thereon at the right a matrix constructed in accordance with the present invention, and at the left a matrix as heretofore constructed.

6 is a perspective view of a wide matrix as heretofore constructed, and

Fig. 7 is an end elevation of a finished matrix constructed in accordance with the present invention.

The matrices constructed in accordance with the present invention are applicable generally to typographical machines of the type wherein the matrices circulate through the machine and then are supported during their circulation by teeth formed in the matrix and which engage a ribbed rail or equivalent member. The improved matrices are especially applicable to typographical machines of the well known linotype class, wherein the matrices during distribution are suspended from a rail or bar which is provided with combinations of ribs to engage the combinations of teeth on the matrices, whereby each matrix will drop from the combination rail at the proper point, to enter the respective matrix channel in the magazine. In the present instance, Fig. 5 shows a combination rail 1 which corresponds to the combination rail of a distributer such as that commonly used in typographical machinBS, 0f the linotype class,

the lower edge of this combination rail being il-shaped, with the convergent sides thereof formed with combinations of ribs 2, the combinations of ribs corresponding to the combinations of teeth formed in the matrices to distin nish the difiierent matrices of the font and to cause the matrices to drop from the rail as they reach the ap' propriate channels of the magazine.

I-Ieretofore it has been attempted to use wide matrices adapted for advertising or display printing, in typographical machines of this type adapted for the handling of the usually relatively thin matrices. F1 wide faced matrix, such as those heretofore used, is shown in Fig. 6, it comprising a wide body X to conform with the relatively wide type face a and teeth I to engage the combination rail and thus support the matrix duringdistribution. 'Ihese teeth, however, as heretofore constructed, have been relatively narrow, as shown in Fig. 6, and they have been located wholly at one side of the matrix. When a matrix of the construction shown in Fig. 6 is applied to the combination rail it will assume a position such as that assumed by the matrix X in Fi 5. In other words, the matrix will hang in an inclined position, owing to the relative shortness of the supporting teeth on the matrix and the location of these teeth at the advance side of the matrix. In using the relatively thin matrices, no serious diliiculty has been caused by the hanging of the matrices out of plumb, but where relatively thick matrices, such, for example, as those shown are used, the weight of these matrices, which is considerable, and the degree to which the supporting teeth in the matrix are oflset relatively to the center of weight of the matrix, causes these thick matrices to sag or incline to such a degree as to interfere seriously with the handling of the matrices, it giving rise particularly to faulty distribution or the matrices as the matrices will not always drop from the combination rail at the exact point intended, they will drop in an inclined or twisted position instead of in an upright position, thereby interfering with their proper reception by the channel en rance of the magazine, and furthermore, sagging or tilting of the matrices is likely to cause disengagement of the matrices from the conveyor screws which advance the matrices along the combination rail. These faults in the handling of wide matrices, as heretofore constructed with the narrow supporting teeth offset wholly to one side of the center of weight of the matrix, are aggravated or increased by wear as it develops upon the matrix supporting teeth and the ribs of the combination rail.

The present invention provides an improved matrix which obviates these di'liiculties which have been previously experienced, and it insures correct handling and distribution of the matrices. According to the present invention the supporting teeth of the matrix are so formed that the matrix will hang in a true upright or vertical position, as indicated, for example, by the matrix M at the right of Fig. 5. It consists broadly in providing a matrix with supporting teeth which extend across a vertical plane passing through the center of weight of the matrix. In the preferred embodiments of the invention, the matrix supporting teeth are of graduated or varying lengths, the, longer teeth being located at the top of the matrix and the shorter teeth being located toward the body of the matrix, the longest teeth preferably; extending over half way across the matrix. Inasmuch as these longest supporting teeth on the matrix extend more than half way across the matrix and the center of Weight of the matrix is about midway of, the thickness of the matrix, the matrix in consequence will hang vertically on the distributor instead of tipping or sagging at an angle thereto, as indicated by the old form of matrix X in Fig. 5. If. all the supporting teeth of the matrix were made long or wide to conform, for example, with the length of the uppe teeth, the movement of the matrices along the ribbed. combination rail would be facilitated, but in pr cticeit would be a diflicult and expensive operationto punch orbroach the teeth at the point where the space between them is narrowest, that is to "say, at or near the apex of the V-shaped notch formed in the matrix, and the two lower teeth of the series would probably require a very delicate punch and a great many successive operations for finish ing.

The preferred mode of constructing the matrices is represented diagrammatically in Figs. 1 to 1, inclusive, which represent the economical method of manufacturingthe matrices, and' the matrices thus producer will utilize the advantages tobe obtained by the use of the wide or long supporting teeth in the matrices. In Fig. 1 the matrix comprises the matrix body with type characters therein and the usual lugs on the corners thereof, and a cavity 3, preferably cylindrical in form, is drilled or otherwise formed vertically to extend from the bottom to the top of the matrix body. The boc y of the matrix is preferably provided. with this cavity as it reduces the weight of the matrix, and hence the falling of the matrix by gravity through the magazine is less apt to cause damage either to the matrix or to the parts of the machine which it may come in contact with. In this figure of the drawing the upper end of the matrix is left blank in-so far as the combination teeth are concerned.

Fig. 2 shows the matrix after the next operation has been performed thereon. This.

than half the thickness of the matrix. This recess 4 intersects the cavity 3 and it is of a width sufficient to remove the metal of the matrix which would otherwise require re moval or would require punching through in the formation of the supporting teeth.

Fig. 3 shows the matrix after the next step in its manufacture has been completed. This later step consists in milling the top of the matrix with a stepped cutter which forms the parallel steps 5 which correspond in location and arrangement to the teeth which are to be subsequently formed in the matrix.

Fig. A represents the matrix after the steps 5 have been converted into undercut teeth 6. The teeth 6 are formed by a punching or broaching operation.

Owing to the presence of the cavity 3 which extends vertically through the body of the matrix, the lower teeth which are relatively close together are of a minimum length, and hence the punching or breaching operation necessary to form these teeth, an operation which requires a delicate punch or broach, may be performed without requiring the exercise of a considerable amount of power or pressure. Also, owing to the presence of the cavity 3, which extends through the body of the matrix, the teeth become longer as the top of the matrix is approached the uppermost teeth being of greatest length and of a length to extend preferably more than half way across the thickness of the matrix so that these longer teeth will overlie a vertical plane passing through the center of weight of the matrix, in consequence of which the matrix will be caused to hang in a true vertical position from the combination rail.

After the teeth have been formed in the matrices, as shown, for example, in Fig. 417 the matrices may be provided with the different tooth combinations corresponding to the different combinations of ribs on the combination rail, one of these tooth combinations being shown in Fig. 7.

The present invention enables the production of relatively wide matrices which are capable of being handled efficiently and without difli culty in typographical machines of the types using circulating matrices which are supported during distribution by combinations of teeth on the matrices which engage similar combinations of ribs on a distributing rail. The relatively long supporting teeth of the matrix prevent tilting or sagging of the matrices during their advance along the supporting rail so that correct distribution of the matrices is insured. By constructing the matrices in the preferred manner herein set forth, substantial advantages in the manufacture of the matrices are also attained, as the recess which is cut in the upper rear corner of the matrix leaves the uppermost teeth of such length that they will insure support of the matrix in an upright position, while the cavity which extends through the body of the matrix reduces the amount of metal requiring removal in the forming of the lower teeth which are relatively close together and require the use of a delicate punch or broach. The graduation in the length of the teeth from the shortest teeth at the apex to the longest teeth at the top of the V-shaped notch which contains these teeth, is preferably determined, as shown, by the intersection of this V-shaped notch with the central vertical cavity in the matrix, which is preferably circular in cross section, although it may be otherwise shaped in cross section.

I claim as my invention- 1. A relatively thick matrix adapted for use in typographical machines of the type embodying a distributer rail along which circulating matrices are adapted to travel, said matrix having distributer teeth of different lengths measured in the direction of the thickness of the matrix, the longer teeth intersecting a plane passing vertically through the center of weight of the matrix.

2. A circulating matrix having convergingly-disposed distributer teeth of varying lengths, the teeth toward the apex being relatively short and the teeth remote from the apex being relatively long.

3. A circulating matrix having a cavity extending vertically therethrough, a recess formed in the upper rear corner thereof and extending partially through the thickness of the matrix and intersecting said cavity, and a V-shaped notch formed in its forward upper corner and intersecting said cavity, the conver ent walls of said notch being formed with distributer teeth, the teeth toward the apex of the notch being short and the teeth remote from the apex of the notch being'of progressively increasing lengths.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HERMAN R. FREUND. Witnesses:

THOMAS S. HoMANs, CHAS. O. PARKS.

Images