US1266060A - Photographic apparatus. - Google Patents

Description

3 SHEEIS-SHEE l.

W. H. SCHWAB.

PHOTOGRAPHIC APPARATUS.v

APPLICATION FILED )AN.I5,1913.

Patented May14, 1918.

W. R. SBHWAB.

PHOTOGRAPHIC APPARATUS.

APPLICATION r|LED-JAN.|5.1913.

Patented May 14, 1918.

/z. vedfor UNITED sTATEs PATENT curi-cn.

WILLIAM R. SCHWAB, OF KANSAS CITY, MISSOURI, ASSIGNR T0 THE CAMERAGRAH COMPANY, 0F KANSAS CITY, MISSGURI, A CORPRATION OF ARIZGNA.

PHOTOGRAPHIC AEPARATUS.

Specication of Letters Patent.

Patented May 14, 1918.

To allzu/1,0m t may concern.'

Be it known that I, WILLIAM R. SCHWAB, a citizen of the United States,y residing at Kansas City, in the county of Jackson and State of Missouri, have invented new and useful Improvements in Photographic Apparatus, of which the following is a specification. Y

This invention relates to improvements in the art of photography, and the object thereof is to provide means whereby photographic reproductions of suitable size may be made with accuracy and facility. According to the present invention, means is provided which indicates the dimensions of the object and serves to center or position the same properly on its support, such means also indicating the necessary adjustments of the object support and the camera lens in order to obtain reproductions of the desired size, and indicating the amounts of sensitized material required for the reproductions of objects of different sizes.

To these and other ends, the invention consists in certain improvements, and combinations and arrangements of parts, all as will be hereinafter more fully described, the novel features being pointed out particularly in the claims at the end of the specili-` cation.

Figure 1 represents an object support in the form of a chart and forming a part of the present invention; l

Fig. 2 represents a card which, when used in connection with the object support or chart, provides the necessary data for the photographer I F'g. 3 is a diagram showing the manner in which the data obtained by the aid of the chart and card is utilized.

Similar parts are designated by the same' reference characters in the several views.

The object support l consists preferably of a board or other suitable at surface, and the object to be' reproduced, such for example as a picture or writing or printed matter contained on a sheet, is applied to the face of the support and may be held in position thereon by any suitable means. 'The present invention is applicable especially to photographic apparatus of the type disclosed fully in Letters Patent, No. 929,757 granted August 3, 1909, to C. J. Ellis, and the object support is adapted to be mounted ,face of the object support embodies a chart which performs the dual function of centerlng or positioning the object properly thereon and indicating the dimensions of the ob- Ject. This chart is composed in the present instance of a series of rectangular diagrams 2 wh1ch increase progressively in size in a direction from the center toward the margin of the support, the diagrams bein concentric. ndex characters 3 serve to Yistinguish the different rectangular diagrams. Fig. 1 shows the chart as elevation, this being the position `that it occupies while in use. Series of lines 4l radiate from the center toward the twolateral sides of the chart, these lines being spaced vertically at predetermined intervals and such lines serve to indicate the lengths ofsensitized material which it is necessary 'to use in making repro'ductions of dierent sizes. These lines are preferably provided with index numbers, as shown which designate directly and by inches the lengths of sensitized material which it is necessary to use in making reproductions of objects which cover or lill but partially one of the rectangular diagrams on the chart. These radiating lines perform this function irrespective of the size of the object, as the vertical distance between such lines varies in accordance with the variations in the size of the object.

A chart of this character is adapted for use in connection, for example, with lthe ofrdinary camera or photographic apparatus which produces a silfigle image or exposes but one side of a sensitized medium. The chart shown, however, is also ladapted for use in connection with a photographic apparatus .of the type shown and described in my prior Patent, No. 1,003,300 granted September 12, 1911, which' is capable of eX- posing both sides of a sensitized medium or two sensitized mediums placed back to back, in which case onesensitized surface receives the image from the object on the righthand side of the object support while the other sensitized surface receives an image from the object on the left-hand side of the object support. For this purpose, the chart is divided centrally to form right and lefthand sections, as shown.

The card 5 which is to be used in connection with the chart is Shown in Fig. 2 and 11 0 viewed in front 4it contains tabulated data which can be obsquares, that is t'o say, the horizontal dimensions of those sections of the rectan lar diagrams at the right or the left si e of the central division `between the chart sections.v The column 8 contains data as to' the horizontal dimensions of the complete squares or rectangular diagrams, while the' column gular diagrams. The chart and card are to be used in connection with photographic apparatus wherein the camera lens front 10 which is mov' able axially of thelens 11 for focusing purposes is provided with a scale 12 which indicates the various focusing positions thereof, and the copyholder or object support is also movable in a direction in alinement with the camera lens and is provided with a'l scale 13 which designates the different positionsthereof. Preferably, the photogra hicaparatus should also embody means or feeding aper or other sensitized material to the V foca plane in measured lengths. It is preferable to emplo a feeding and measuring device such as t at shown and described in my prior patent, No. 1,053,068, granted February 1 1913, as a device of that character not only facilitates the feeding of the sensitized material, but it also-measures the material at each operation. Briefly dei scribed, the feeding and measuring device embodies acrank 14 which is' operatively connected to rollers which advance the paper or sensitized material from a roll. to the focal plane and a handle 15 serves to ad'ust the limit of `operation of the crank to di erent degrees-as may be required; This feed# ing and measuring device is provided with a scale 16 which contains designating numerals or characters which indicate the`diierent positions in which the handle 15 is to be set. The card shown in Fig. 2 contains data which enables the operator to .quickl the object support, lcamera lens, and1 the feedin and measuring device according to the di erent reproductions to .be made, the

column 17 on the card containing data which' indicates the adjustment for the camera lens,

and the column 18 containin data indicating the diiferent ositions in which the object support is to e set. The setting of the measuring device depends on the vertical height of the image cast upon the sensitized material, and this data is obtained upon 9 contains data as to the vertical .be photographed is placed centrally dimensions of the various squares or rectan l :particular diagram, the

cate ence tothe column 6 'of the card after the object has been placed in the proper square on the chart.

For example, the object a, b (Fig. 3)' to on the copyholder or chart so that the o ect fits over or within one of the numbered dia-- also appear that theilens is to be set with reference to its scale 12 so as to be opposite to the-characterlO.- The column 18 ofthe focusing card'indicates that when the object is 1n the form of a sheetapplieddirectly to ,the copyholder chart 1, the co -holder is to be set at 8196 o'n its scale. en abookholder is employed, the column to the right of the column 18 of the focusing card indi-4 cates that the copyholder is to be set at 13g on its scale. In each instance .where kthe object-fills the space withinany diagram,

ioo

the reproduced copy will be of ythegfiillsize,

afforded by the camera.

The `radiating lines 4 are used vwhen.

objects which only partially thedia-li.

grams vertically such as checks, &c., are to be photograph or other object to the up er portion of the sionof which corres onds to the, horizontal dimension of the obJect, and in such a way that the object occupies a space between the" topline of such dia am and one of these radiating lines, it ,wi l be seen by the operator that the measuringdeviceis to feed so magg inches of sensitized material as is indica by'theparticular radiating line 4 with vwhich the lower. edge of the object registers.

For example, if the object has a horizontal dimension equal to the horizontal `dimension of the diagram 15, and. is applied to the upper portion of this diagram so that the upper edge of the object coincides with the topline o this diagram, and if the lower edgeof the object registers with the radiline designated 5, it will then be indiby the chart that a length of sensitized materi l ve inches long will be reating iscl 90 .2. .By reference to the focusing card it wi l quired for a reproduction of such object. The lens and copyholder will be adjusted in this instance as in the preceding instance Where the object completely filled the diagrain and, hence, the exposure takes in the full width of the sensitized material.

Of course, it will be understood that the sensitized material is fed forward the amount indicated by the chart for each object after the exposure of such object has been made. It will also be understood that, in each instance, the reproduction will take in substantially the full width of the sensitized material, this being provided for by the different focuses indicated by the focusing card for the lens and copyholder, and that the radiating lines which subdivide the diagram vertically indicate the length of photographic material required for each object, thus economizing in the amount of sensitized material.

I claim as my invention Y 1. In photographic apparatus, an object support having a chart provided with diagrams for positioning an object, said diagrams being subdivided to indicate the amount of sensitized material required for the reproduction of an object.

2. In photographic apparatus, an object support provided with an object-positioning chart embodying a series of dlagrams of graduated sizes, and means common to and subdividing said diagrams to indicate the amount of photographic material required for the reproduction of an object positioned with reference to the chart.

3. In photographic apparatus, an object support provided with a chart embodying a series of diagrams of graduated sizes having a common center and having means subdividin the diagrams vertically, and means for fee in sensitized materialA vertically before the chart in measured lengths as indicated by the subdivisions of said diagrams.

4. In photographic apparatus, an objectreceiving chart embodying a series of diagrams of graduated sizes having a common center, and radially extending lines subdiindividual index viding the diagrams symmetrically in one direction, and indicating the amount of photographic material required for reproduction of an object.

5. In photographic apparatus, an objectreceiving chart embodylng a series of rectangular diagrams of graduated sizes having a common center and divided centrally into two horizontally spaced complemental sections, and radiating lines subdividing the diagram sections vertically and indicating the amount of photographic material required for reproduction of an object.

6. In photographic apparatus, the combination of an object-receiving chart embodying diagrams of graduated sizes and having characters, and means subdividing the diagrams in one direction, a lens, the lens and chart being relatively adjustable for focusing, focusing scales for the lens and chart, means for indicating the different positions to be occupied by the lens and chart according to the diagrams of the chart, and means for feeding sensitized material in the optical field of the lens in amounts indicated by the subdividing means of the diagram.

7. In photographic apparatus, the combination of an object-receiving chart embodying diagrams of graduated sizes having a common center and having individual index characters, means subdividing the diagrams in one direction, a lens, and means for feeding sensitized material in the optical field of the lens in amounts indicated by the subdividing means of the diagrams, the lens and chart being adjustable relatively to one another and to said feeding means and having scales for determining the adjustments of the lens and chart according to the index characters of the diagrams on the chart.

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

' WILLIAM R. SCHWAB.

Witnesses A. L. PARKS, RUTH WHEELER.

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