US727355A - Matrix-truing apparatus. - Google Patents

Description

No. 727,355. A PATENTED MAY 5, 1903. H. G. HANSEN. MATRIX TRUING APPARATUS.

APPLICATION FILED DBO. 14, 1901.

N0 MODEL.

UNTTEE STATES Patented May 5, 1903.

HANS O. HANSEN, OF NEWTON, MASSACHUSETTS.

MATRlX-TRUING APPARATUS.

srncxsroa'rrolv forming part of Letters Patent No. 727,355, dated May 5, 1903.

Application filed December 14, 1901. Serial No. 85,889. (No model.)

To all whom it may concern:

Be it known that I, HANS O. HANSEN, a citizen of the United States, residing at Newton, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Matrix-Truing Apparatus, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

In the production of a matrix for casting type or characters for printing in a type-casting machine it is now customary to file the face of the matrix to a level and to then file or dress the sides of the matrix to bring them at right angles to the face thereof. This done, the face of the matrix outside of and about the character contained therein in intaglio must be further filed until said face is exactly parallel with the bottom of the impression representing the character.

I have aimed to facilitate the production of matrices and avoid hand-filing, which lessens the cost of their production.

In my invention I may take two pieces of metal and insert in a hole in that one of said pieces which is to form the face of the matrix the character formed in usual manner, preferably of a different metal from the plates, and I may secure said plates together in any usual or suitable way, or I may sink in one face of a metal bar in any usual manner the character desired. With a matrix formed in any usual manner, the manner of forming the same in the first instance being immaterial to my invention, I may apply the partiallyformed matrix without any filing to an apparatus which I have devised to hold said matrix while its face is being finished mechanically parallel to the bottom lines of theintaglio character in the matrix, the finishing being done by a suitable tool of a metal-planer or similar machine.

I believe that I. am the first to complete a matrix by a tool in a machine instead of by hand-filing, and I intend to cover, broadly, an apparatus for doing away with handfiling whatever its construction.

My novel apparatus, as herein shown in one of the best forms now known to me, comprises an adjustable matrix-holder shaped externally so that it may be tipped in the direction of the length and Width of the matrix, the holder for the best results being spherical. The holder is maintained frictionally in its adjusted position by a suitable clamp, and the holder has a notch to receive the matrix to be surfaced, suitable means coacting with the matrix in the notch to retain it firmly in the holder. The clamp is made adjustable, that it may be moved in a guide toward and from the line occupied by the tool used to surface or plane the face of the matrix, and by tipping the holder any part of the face of the matrix may be placed with relation to the path of the tool used to remove any part of the matrix which is not truly parallel with the entire bottom of the intaglio impression in the matrix.

Figure 1, in perspective, shows the clamp, theframe containing it, the matrix-holder containing a matrix, and a depth-gage applied in position to detect any difference in level between the bottom of the impression in the matrix and the face of a testing-surface. Fig. 2 is a view showing some of the parts represented in Fig. 1, a part of the clamp and the gage being omitted. Fig. 3 is an inner side view of the part of the clamp left 0% from Fig. 2. Fig. 4 is a vertical section of the parts shown in Fig. 1 with the gage and matrix-holder omitted. Fig. 5 shows one form of matrix-holder in perspective. 4

Referring to the drawings, A represents a guide composed of two like plates at a, presenting parallel ends 2 3, and a connected bar a (see Figs. 2 and 4,) the plates and bar being firmly united by suitable screws a the ends 2 and 3 constituting testing-surfaces, to be described.

The matrixholder which I have herein chosen to illustrate is composed, essentially, of a sphere or ball B. (Shown in elevation in Fig. 4 and detached in Fig. 5.) The matrix-holder has a suitable notch 19, in which may be laid the matrix I), having in its face a character, as b in intaglio, the character herein shown representing the letter H. The matrix having been laid in the notch 11 is secured therein firmly in any suitable manner, as by a set-screw 12 The matrix referred to is sustained in a suitable clamp composed, as shown, of two plates 0 0', each having a concaved portion to fit the exterior of the matrix-holder. The two plates are clamped firmly together by a suitable screw, as C, so that by their friction they will prevent any movement of the matrix-holder. It is necessary at times to move the clamp and the matrix-holder longitudinally with relation to the guide-block a, and to effect this adjustment that the face of the matrix may be placed exactly in position with relation to the surfacing-tool of usual construction, such as used in a planer or similar machine, I have provided an adjusting-screw D, which is shaped to turn freelyin one member, as O, of the clamp and be restrained from longitudinal motion with relation to said clamp, the threaded end of the screw entering ascrew-thread in the bar a so that by rotation of the screw D the clamp may be moved longitudinally in the guide and toward and from the path of movement of any suitable tool, as stated. After having secured the matrix in the matrix-holder by the screw b the gage E, composed, essentially, of a bar e, having a downturned foot c and held adjustably in a double foot e and provided with a feeler e which is adjustable vertically with relation to said bar, is set upon the parallel ends 2 and 3 of the plates at and a of the guide A, said ends constituting a testing-surface, the double foot 6 resting on one end, as 2, of one of said plates, the downturned end 6 resting on the opposite end 3 of the other plate. This done, the workman turns the feeler until its point meets the bottom of the impression or character made in the face of the matrix, and thereafter the feeler is further turned to raise the end 6 from the end 3 of the plate a, so that the workman may just discern the light between said end 6 and said end 3. In this condition he may move the gage by hand, so that the point of the feeler will traverse all parts of the bottom of the character, and if one part or end of the impression is higher than another, the screw 0 being slightly released, he tips the matrix holder having the matrix fixed therein in one and another direction until the point of the feeler indicates that the bottom line of the character is exactly at a level or exactly parallel to the ends 3 and 2 of the plates at a. When this is ascertained, the screw 0 is set up, causing the clamp to hold the matrixholder firmly in position, and portions of the face of the matrix will stand above the upper edges 4 of the clamp-plate G C, some portions of the matrix-face projecting more than other portions, and thereafter while the guide is held firmly and securely in a planer or simi lar machine the tool of the machine of usual form will be made to attack the face of the matrix, surface and smooth the same, leaving the face of the matrix exactly parallel with the bottom of the character formed in the matrix.

To adjust the matrix holder accurately when the screw C is sufficiently loosened to permit the matrix to be turned in any direction, I have provided the matrix with a stud M, and through the plate 0, I have inserted a screw M, that acts against one side of the stud, a spring m in the opposite plate 0 working against the opposite side of the stud. The inner side of the plate 0 is provided with a rib n, threaded to receive a screw M that acts against a part of the stud ninety degrees distant from the point thereof acted upon the screw M, a suitable spring, as m acting against said stud at a point opposite the end of said screw M The screw M is extended through an elongated slot in the side wall a, of the guide. The inner side of the plate 0 is grooved at n to receive the rib a. By turning the screws M and M the matrix-holder may be accurately adjusted into any desired position and be retained in such position.

I have not herein considered it necessary to show the cutting-tool of a planer or the planer-bed upon which the guide A will be fixedly held during the operation of the tool, as any one skilled in the art will readily understand how the guide may be fixed with relation to the bed and the tool be made to act on the face of the matrix to plane the same to a true level,

Instead of surfacing the face of the matrix in a planing-machine having a traveling bed I may perform this work in any other equivalent machine.

I do not in the present application claim the gage shown herein, as this forms the subject of another and divisional application, filed January 3, 1903, Serial No. 137,656.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a matrix-truing apparatus, a matrixholder provided with means for receiving and sustaining a matrix, truing-surfaces disposed adjacent thereto, a clamp for sustaining the matrix-holder, and means for adjusting the matrix-holder in the clamp to bring the ma trix into truing position with respect to the truing-surfaces.

2. In a matrix-truing apparatus, a spherical matrix-holder provided with means for receiving and sustaining a matrix, truingsurfaces disposed adjacent thereto, a clamp for sustaining the matrix-holder, and means to tip the matrix-holder in the clamp both in the direction of the length and Width of the matrix to bring the matrix into truing position with respect to the truing-surfaces.

3. In a matrix-truing apparatus, an adjustable matrix-holder provided with means for sustaininga' matrix, means for sustaining the matrix-holder in desired adjustment, and truing-surfaces disposed adjacent the matrixholder for determining the position of the matrix-holderin its sustaining means to bring the matrix into truing position.

4. In a matrix-truing apparatus, a matrixholder provided with means for securing a matrix therein, means for sustaining said matrix-holder, plates on opposite sides thereof provided with testing-surfaces adjacent the matrix-holder, and devices for moving the matrix-holder with relation to the testingsurfaces.

5. In a matriX-truing apparatus, a plate having a truing SurfaGe, a matrix-holder for sustaining a matrix, means for sustaining the matrix-holder, said plate being disposed adjacent to the matrix-holder, and devices to adjust the said sustaining means and matrix-holder with relation to the truing-surface to place the bottom of the character-impression in the matrix parallel with the said surface.

6. In a matriX-truing apparatus, a matrixholder for sustaining a matrix, a clamp for sustaining the matrix-holder, truing-surfaces disposed on opposite sides of said matrixholder, means for adjusting the matrix-holder name to this specification in the presence of 30 two subscribing witnesses.

HANS O. HANSEN.

Witnesses:

GEO. W. GREGORY, EDITH M. STODDARD.

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