US81055A - wyckoff - Google Patents

Description

J. H. & W. K. WYCKOFF.

Photographic Camera.

Patented Aug. 11,1868.

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J. H. WYGKOFF AND W. K. WYCKOFF, OF RIPON, WISCONSIN.

Letters Patent .No. 81,055, dated August 11, 1868.

IMPROVEMENT I N PHOTOGRAJPHIG CAMERAS.

TO ALL WHOM IT- MAY CONCERN:

Be it known that we, J. H. WYCKOFF and W. K. WYCKOFF, of Ripon, in the county of Fond du Lac, in the State of Wisconsin, have invented a new and improved device or apparatus, which we call a Curvilinear Multigraph, for making sun-pictures, such as photographs, ,ambrotypes, he); and we do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the annexed drawings, making a part of this specification, in which- Figure '1 is a perspective view of the instrument, I

Figure 2 a perspective view of the cone-shaped light-,oonductor, and

Figure 3 a section of an enlarged registered scale, with letters of reference marked thereon.

The nature of our invention consists in providing an eflieient and cheap device or instrument with which the various kinds of sun-pictures maybe readily made, taking a single impression only,'if desired,.or multiplying the number at a single sitting of the person or subject as high, at least, as fifteen pictures on one plate.

This instrument is commonly used with a single tube and a single set of lenses, admitting of a wide range in its application to the making of pictures, as it will eifectually take the sizes, from a cabinet or imperial card down to the small gem known as thirty-second, including all of the intermediate sizes. With proper manipulation it may also be used with a single tube, or a single set of lenses, in making stereoscopic or stereographic pictures, which ordinarily require two tubes. V

To enable others skilled in the art to make anduse our invention, we will-proceed to describe its construction and operation.

We construct our instrument almost entirely of any suitable wood, the base, A, being about sixteen inches long by about seven inches wide, with a vertical tablet, 13, about twenty-two inches in its extreme'height, and

of the same width withthe length of the base, being fastened to it ina substantial manner nearthe front edge of base.

This upright tablet B is properly secured against Warping or twisting out of shape by cleats fastened across its front surface, and between these cleats, in the centre of the tablet, the opening is made, which admits the light through the lens-tube, placed in the centre of the adjustable extension-box, marked 0, covering the opening, about six inches square, made through the tablet B.

At the top and centre of this tablet B there is an upright extension of the tablet itself, to the upper part of which is secured the pivoted pendant D, in whiehthere is a longitudinal groove or recess cut to receive a sliding'bar, E, held in place with a thumb-screw, and at the lower end of which is fastened the frame F, made about eight inches square, and designed for holding the dark-slide or plate-holder, this holder being kept in place with a spring or catch.

A suitable spring, marked J, holds the pendant- D, with its attachments, E and F, snugly against the plane surface of the upright tablet B.

In the opening, through the tablet B, there is a shield, G, recessed to receive cards with difi'erent-sized openings, the shield and cards shutting out the light, and reducing the openings from the largest to the smallest size.

At or near the lower end of the pendant D, a transverse recess is cut for one or more removable scales, as shown at H, these scales being notched upon their edges to receive a suitable pin or spring, and the whole indieating the lateral movements necessary in bringing the prepared plateproperly across the opening and behind the lenses, the scales being correctly registered, as at H, fig. 3, preventing the possibility of making mistakes in taking the difierenhsizcd pictures.

On the pendant 1) there is a scale marked, which indicates the proper elevation and depression that the sliding rod or bar E should have to bring the prepared plate to its proper point transversely across the opening behind the lens-tube or tubes.

At the bottom and on the under side of the frame F, a hook orcatch is placed, to hold the prepared plates exactly to the centre, as in taking imperial card or cabinet, or all other pictures that may require this position of the plate-holder.

Inside of the adjustable extension-box 0 there is placed a removable cone-shaped tube, represented at I, fig. 2, made of metal, or other suitable material, and designed to conduct the light more directly from the lenses to the prepared plate in making small pictures, thereby quickening the action'of the light upon the chemicals.-

The adjustable extension-box C is held in its proper place with a thumb-screw or a suitable spring.

This device or apparatus is operated similarly to other cameras or instruments for making sun-pictures, with the exception that the adjustable frame F, in its attachment to the pivoted pendant D, allows a to-and-fr0 or a lateral transverse movement on the are of a circle, carrying the prepared plate across the opening behind the lens-tube or tubes, and the whole is properly guided and adjusted by the scale 11, and in raising or lowering the sliding bar E to correspond with the scale marked upon the swinging or oscillating pendant D.

What we claim, is v 1. The adjustable pivoted pendant D, with its sliding bar or rod, E, and the frame F, for holding the darkslide orplate-holder; and, further, we claim this special and particular method with a pivoted pendant made adjustable upward and downvvard, and with a to-and-fro or 'a. lateral transverse oscillating movement on the are of a circle, carrying a chemically-prepared plate acrossthe opening behind the lcns-tube or tubes in making sun-pictures, substantially asset forth and described.

2. The combination and arrangement of these various parts, making the apparatus or device complete.

The above specification of our invention signed by us, this fifth day of June, 1868- J. H. WYCKOFF,

- W. K. WYCKOFR Witnesses J. WASSAN, A. S. Gnoss.

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