US754044A - Method of typographically printing curves. - Google Patents

Description

No. 754,044. PATENTED MAR. 8, 1904;.. V. A. BRUSSELET. MBTHD 0F TYPOGRAPHIGALLY PRINTING CURVES.

APPLIOATION FILED SEPT. 10, 1903.

UNirnn Srarns Patented March S, 1904.

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ATENT METHOD OF TYPOGRAPHICALLY PRINTING CURVES.

SPECIFICATION forming part of Letters Patent No. '7 54,044, dated March 8, 1904.

Application tiled September 10, 1903. Serial No. 172,552. (No model.)

T all whom t may concern:

Be it known that I, VICTOR ALFRED BRUS- SELET, civil engineer, a citizen of the Republic of France, and a resident of No. 153 Avenue ParmentierParis, France, have invented a new and useful Method of Typographically Printing Curves, of which the following is a specication.

This invention relates to a special method of typographically printing various barometric, thermometric, and other curves, enabling the use or' printing-blocks to be dis- 4 pensed with. The curve to be reproduced is obtained in a very simple manner by suitable juxtaposition of special printing characters constructed according to this invention.

In the accompanying drawings, by way of example, Figure l shows a curve obtained With the special characters according to this invention consisting of white dots. Figs. 2 and 3 are respectively a front and a side elevation of one of the characters. Figs. 4, 5, and 6 are similar views showing curves formed of black dots.

The character in both the examples illustrated consists of a plate a, made of the usual typographic alloy. On the printing side the plate is made thinner along one portion of its height, so as to produce a heavy line 5 in the character shown in Figs. 2 and 3 and a thin line in the characters shown in Figs. 5 and 6. At certain distances on each side of the line o and at regular intervals are cast projections terminating in a rib o in the same plane as the line The cross-ribs c c on each side are exactly opposite eachother and similarly arranged on all the plates or characters which are to constitute the curve. If the curve is intended to give barometric variations, the ribs c c can be distant one centimeter, and by the juxtaposition of the characters abscissae of the curve numbered 740, 750,- 760, 770, &c., are formed on the right-hand side of Fig. l. The lines b b form the ordinates of the curve, and each of them is numbered by agure indicating the hour. These indications are obtained by a block arranged at the top of the character and provided with the indication of the day and date,

as shown in Figs. l and 4. At a certain level of the plate c, Figs. l and 3, the line is interrupted by a notch d and provided on the side with the indication of the height of this notch, whichat theimpression will produce a White dot on the line Z), and that White dot is a point of the curve. Thus if the notch corresponds to the height of seven hundred and fty-four millimeters the number 754 will be engraved on the side of the plate a, as shown in Fig. 2.

It 4will be understood that with a set of these characters it is possible very easily and In Figs. 4, 5, and 6 the. ordinates and thel abscissae are constituted by light lines and the curve by dots. Each of them is obtained by arranging on the character a round boss d', the center of which is on the line b, with which it comes in contact, as clearly shown in the drawings. Whether the curve be obtained by white or black dots the nature of the invention remains the same. c

Instead of having abscissae every centimeter they could be arranged every millimeter by bringing the ribs c c nearer together; but these arrangements can vary to an infinite extent, according to the nature of the curve to be reproduced, and it will be always easy to produce a set of characters fulfilling all requirements of each individual case.

This kind or' characters can also be arranged for reproducing two distinct curves on the same diagramMfor instance, a barometric curve and a thermometric curve. It is suficient for that purpose to have a font of characters suicient to obtain the various combinations or the whole of the dots of the two curves.

Having now particularly described and ascer-tained the nature or' my said invention and in what manner the same is to be performed, I declare that what I claim is- A method of typographically printing curves as herein described, the same consisting in locating, in juxtaposition, printing to this specification in the presence of tWo subehtraeters of proper hleight ard iearing each seribing Witnesses. in ioations correspon ing Wit 1 tie o1' inate and abseissa of one of the points of the curve, VICTOR ALFRED BRUSSELE'L 5 and then printing from the characters thus Witnesses:

disposed, substantially as explained. GEORGE E. LIGHT,

In testimony Whereo` I have signed my name PAUL BACARD.

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