DE1972309U - VARIABLE JOBBOARD. - Google Patents

Description

P.A. 165 39if * 23-3.67

Erich Blüzaling utility model registration

of March 21, 196? "variable board"

B_E_S_C_H_R_E_I_B_U | f_ß_H} it_ ^ __ claims for protection

The subject of the application is a variable position board, which is particularly useful for illustrating arithmetic lessons at elementary schools.

It serves to illuminate the decadal structure of the digits up to 1,000,000,000 and above, just like them decimal notation of coins, dimensions and types of bill and thus contributed to the promotion of numeracy and skills

Material; Wood, plastic, cardboard or the like.

The position board consists of the following parts; Base plate (A) with a horizontal division into categories (1-3) on their left half.

Rubric (1) s Die Stellengahlezi 1 to 10 "(2); Abbreviated job designations from E = (liner)

to Md = (billion)
"(3) s number column with zero division on the

Base plate.

Guide rails! (a), (b), (c), for 3 different sliders (B), (C), (!), Cover plate! (E) on the right side of the board, over guide strips

(a + b) _t so that the slide (B) remains invisible here. Insert box (F) with 2 short guide strips (d), (e), for

Accommodation and visualization of various, with abbreviations for coins, dimensions and weights ■ labeled tablet "

Reserved place ι (G), z / ar suspension of 90, in the category (3)

matching and pluggable egg panels, which are individually labeled with the digits from 1 to 9.

Of course, the total number of places on the board can be analogous to be expanded »

"variable job board"

I junktioa

Will slide (B) from right to left, between the Guide strips (a) and (b), fully pushed in, its left half is visible in section (3). This left half carries the division: 1 000 000 000 (1 billion), corresponding to the number of digits in general heading (1) and the abbreviation in Rubric (2).

If I move the slider (B) one place to the right, only the number remains; 100,000,000 (100 million) visible »The number; So 1 000 000 000 was divided by 10. So, depending on what I do, slide the slide (B) by one or more places shift to the right or left, I also illustrate the decadic division * or »multiplication» Slider (C) and (D), which do not have any lettering, serve, by introducing into the leadership complexes (a) + (b) and (b) + (c), only the partial concealment of the lettering in general Headings (3) and (H), depending on the au illustrative number * In heading (3), on the left half of the table (ä) can between the guide strips (a) + (b) optionally various number tablets labeled with the numbers 1 to 9 are inserted so that any number up to 9 999 999 999 can be displayed. The digit 5 0 (zero) is not required because the Section (3) is already labeled with 10 zeros on the basic table (A) is.

Claims (3)

RA. 521027 * -9.9.67 Variable ^ ifell-v!;, F-1 ^ Hirt, -L .: B 70 311 / 42n <ibm 1. Variable steep table _t characterized in that it, according to ZeIChHUHg ₇ , has a square shape and on it 3 guide strips (a), (b) and (c), for the purpose of the slide (B) that can be moved freely to both sides, (C) and (D) are firmly attached. The guide strips (a) and (b) limit the upper and lower edge of the rubric (3) and continue to the right in a straight line to the right outer edge of the board (A), the guide bar (c) delimits the upper edge of the rubric ( 2) 2. Variable board, according to claim 1, characterized in that that on the right half of the base plate (A) a cover plate (E) over both right halves of the guide rails (a) and (b) is firmly attached. 3. Variable board, according to Claim.1 and 2 thereby characterized in that the slide (B) is inserted from the right behind the cover plate (E), and its left Half is visible in sections in the open rubric (3).