US347696A

US347696A - School-slate

Info

Publication number: US347696A
Authority: US
Publication date: 1886-08-17
Anticipated expiration: 1903-08-17

Description

(No Model.)

J. DU SHANE. SCHOOL S'LATE. No. 347,696. Patented Aug. 17., 1886. l Zig/.1.

Attorney UNITED STATES JAMES DU SHANE, OF SOUTH BEND, INDIANA.

PATENT OFFICE..

'SCH'OOL-SLATE.

SPECIFICATION forming part of Letters Patent No. 347,696, dated August 17, 1886.

Application filed December .1-2, 1835. SerialNo. 186,447. (No model.)

T0 all whom it may concern:

Be it known that I, JAMES DU SHANE, of South Bend, in the county of St. Joseph and State of Indiana,have invented certain new and useful Improvements in School-Slates; and Ido hereby declare that the following is a full, clear, and exact description ofthe invention, reference being had to the accompanying drawings,and to the lettei's of reference marked thereon, which form part of this specification, in Which- Figure l is a plan view of my improved counting and recording slate. Fig. 2 is a longitudinal crosssection ofthe same. Fig. 3 is a view of a double slate embodying my invention. Fig. 4t is a view of a desk having the invention applied to its lid.

This invention relates to educational ap pliances, and has especial reference to slates or desks used in primary schools; aud it consists in the novel construction and arrangement of the parts, as will befully understood from the following description, when taken in connection with the accompanying drawings.

A designates a slate-frame of ordinary construction. One half of the inside of the frame is filled by a slate, B, and the' other half is occupied by a thin board, veneer, or strip of suitable material, C, hereinafter described.

The board C may be divided into similar figures or squares by lines or grooves c, which cross each other at equal distances. The board has perforations d,for the reception of pins d', made preferably at the intersections of the lines c, or in like places in the figures formed by the lines. The lines c may be omitted, as they are only'used as a guide for the eye to enable the scholar to more readily follow the rows of perforations which are made in the board, as described. The board may be large enough to fill the entire frame A,and have the slates B secured on its side or sides at one end of the frame, by means of glue or other suitable fastening, or may have one portion slated with liquid slate in the ordinary manner.

Fig. 3 shows a 4double-hinged slate, one frame, A, of which is occupied by a perforated board, C, as described, and the other frame, A', contains a slate, B.

Fig. 4 shows a school-desk, E, having a board, C, and slate B, such as described, in-

laid in its top or cover, which forms a frame,

answering to frame A for the same.

The invention is especially designed for use in primary schools in which the younger scholars are provided with the slates or have the desks E, as described. Itis used as follows:

The teacher gives the children an example in arithmetic-say in addition, for example. The several numbers to be added are called out and the scholars insert in theperforations -of the boards C, in the different rows, the several numbers named by the teacher. The scholars can then count the number of the separate pegs in the different rows and set down their aggregate amount in pencil on slate B. To subtract a number from the added sumhe would remove as many pegs from the board C as the number to be tak en away, then by counting the remaining pegs in the board would have the correct answer, which could bewritten u`pcn the slate as before.

It is obvious that the invention may be used for various purposes other than those described-such as outlining drawings by means of the pegs on the board, and then copying y the outlines on the slate in pencil, Ste., thus accustoming the child,by simple and practical means, to associate Various things with signs representing them collectively or singly, and also helping him to understand the arithmetical and geometrical proportions of things. The slate is also adapted for use as a gamecounter, as is evident.

Having described my invention, l claim- 1. An educational device consisting of two parts hinged together at their similar edges, one part being composed of' suitable thin material-such as veneerand provided with perforations situated at the points of intersection of equidistant right lines crossing each other at right angles, and the other part composed of some material adapted to be written uponsuch as slatethe two parts being so hinged that when opened apart both can be used at the same time, substantially as specified.

2. The herein described educational device, consisting of the equal-sized rectangular parts A A,hinged together at the side edges of their frame, the part A being composed of suitable IOO thin material-such as veneer-and provided In tostimonytlmb I clai m the foregoing as my 1o with the porlbmt'ions d, situated al; the interown I nfx my signature in presence of two section of the bwo sets of grooves c c,crossing witnesses. each other ab right angles and adapted t-o guide tho pins d into the perforatons, and the pari; A being composed of some material adapt)- JAMES DU SHANE.

ed to bowribton upon--such as slate-al1 c011- Vv'itnesscs: sbl-noted and arranged substantially as and GHAS. W. XVILEY, for the pmposesspeced. I. H. UNRUH.