US177892A - Improvement in drawing-slates - Google Patents

Description

CHARLOTTE L. SLADE.

DRAWING-SLATE. v

No.-177,89z. Patented m 23,1876.

INVENTOR 40464 Jam a N. PETERS, FHOTQLHHOGRAFHER, WASHINGTON, D C.

PATENT OFFICE.

UNITED STATES CHARLOTTE L. SLADE, OF NEW YORK, N. Y.

IMPROVEMENT m. DRAWlNG-SLATES.

Specification forming-part of Letters Patent No. 177,892, dated May 23, 1876; application filed i i April 22, 1876.-

To all whom it may concern: 7

Be it known that I, CHARLOTTE L. SLADE, of the cityfof New York, in the county and State of New York, have invented a new and useful Improvement in Drawing Slates, of

which the following is a specification:

- This invention relates to devices for e11- couragin g and facilitating the use of childrens slates, and especially for developing taste or talent for artistic drawing.

The present invention consists, primarily, in the combination of a transparent slate and an opaque slate, to train the hand for sketching by the more simple work of tracing copies,-

and to afford diversity of entertainment.

The invention consists,"secondly, in thin paper copy-sheets, each provided with copies for the transparent slate and for the opaque slate, respectively, and adapted to be kept between the two slates.

The invention consists, thirdly, in a frame or support rabbeted'to receive the slates and copies at top, and adapted to accommodate paper, pencils, 850., beneath these, the entire internal area being utilized for this purpose, and for the accommodation of a transparent slate of large size.

The improved slate is of superior lightness, simplicity, and durability, a thin silicate sheet being employed as the opaque slate with the thin paper copies,while the form of the latter obviates any necessity for complex provisions for their accommodation, and tends to insure vtheir preservation in the slate. If either slate is broken, it can be readily replaced, and pictures and sketches from old books and papers can be added to the collection of copies.

Figure 1 is a vertical section of a drawingslate illustrating this invention, the same being adjusted for tracing. Fig. 2 is a similar section, showing the opaque slate on top for sketching. Figs. 3 and 4 are face views of the improved slate 011 a smaller scale, corresponding, respectively, with Figs. 1 and 2.

Like letters of reference indicate corresponding parts in the several figures.

This improved slate consists of a wooden frame or support, F, a transparent slate, A, of

ground glass, termed the white slate, a thin silicate slate, B, termed the black slate, and one or more thin paper copy-sheets or copies,

The former, which is only to be traced, can be morercomplex, as indicated in Fig. 3. The whole is designed and adapted to be printed at one operation on one side of the paper. The pile of copies is accommodatedbetweeu the slates, the uppermost being in position for use.

The white slate A covers the whole area of i the exposed copy-sheet, and fills the entire top of the frame, as shown in Figs. 1 and 3. It thus provides for first tracing the copy y, which is to be sketched or copied on the black slate B, and forms an efficient cover for the slate as a whole, obviating necessity for any other. While in use simply as a cover, it can be inverted, so as to protect its ground surface.

The black slate B is made of less width from top to bottom than the other slate and the copy-sheets, so as to expose its copies 3 above it, as shown in Figs. 2 and 4. This slate is supported by the white slate while in use, and can consequently be made of thin flexible material, as proposed, the rigidity of the white slate answering for both. When beneath, it is protected by the white slate, and supports the copies beneath the latter.

The top of the frame F is inclined or slanted, so as to present the slate surfaces in convenient position, and is rabbeted to form a continu'ous shoulder, .12, around its upper edge on'the inside, for the support of the slates and copies. Buttons w, turning on their attachingtacks, hold the slates and copies in place, and pro vide for their ready removal when the relative positions of the slates or copies are to be changed, and to give convenient access to the interior of the frame, which forms a receptacle for paper, pencils, slate-cleaners, and other articles, the whole internal area of the frame beneath the slates being available for this use.

A fixed back, o, forms the bottom of this chamber. A kerf or groove, to, at the top of the slate receives and holds the upper edges of the copies, so as to keep them flat while the black slate is being used, and a shelf, 2?, is provided to form, in connection with the black slate, a support beneath the whole area of the copies while the white slate is being used. Two light cross-bars, .91", are arranged; in the frame to support the shel'f t and the black slate B beneath the copies, and the latter, 1, serves to hold the slate-cleaners, &c., in the front part of the chamber of the frame.

With moderately stiff copies, the support afforded by the cross-bars, shelf, and black slate will obviously be unessential, and the groove 20 can beylispensed with.

The opaque slate B. may be a stone slate instead of a silicate slate, or may be made of light color, and adapted to be marked on with lead-pencil, like the transparent slate, if preferred. The transparent slate A may also be made of the same dimensions as the opaque slate, and the copies for the respective slates be printed on separate slips, without wholly departing from this invention.

The improved slate is intended to be made of different sizes, and each size provided with a variety of copies in one or more sets. Copies for writing and ciphering, as well as for drawing, will be furnished.

The association with a single slate of a hollow inclined support, and copies for use in connection therewith, broadly considered, is not claimed as new.

I claim as new in this my invention- 1. The combination of a transparent tracingslate, A, and an opaque slate, B, with copies for the respective slates, and a frame common to all, substantially as herein illustrated and described.

2. A thin paper copy-sheet, 0, provided on one and the same side withtwo copies, 2 y, for use in connection with the transparent slate and with the opaque slate, respectively, and adapted to be held between the slates, as set forth, for the purpose specified.

3. A frame, F, having a close back or bottom, '0, and an internal supporting-shoulder, m, at top, in combination with the pair of removable slates A B, resting on said shoulder,

and copy-sheets (3,:held between the slates,

the same forming a covered space of the entire internal area of the frame, for the reception of other articles, as herein shown and described, for the purpose set forth.

JAS. L. EWIN, FRANK W. SLADE.

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