US119368A - Improvement in slate-frames - Google Patents
Improvement in slate-frames Download PDFInfo
- Publication number
- US119368A US119368A US119368DA US119368A US 119368 A US119368 A US 119368A US 119368D A US119368D A US 119368DA US 119368 A US119368 A US 119368A
- Authority
- US
- United States
- Prior art keywords
- slate
- ruler
- recess
- improvement
- frames
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000010454 slate Substances 0.000 description 26
- 239000000463 material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000002393 scratching Effects 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B1/00—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways
- G09B1/32—Manually or mechanically operated educational appliances using elements forming, or bearing, symbols, signs, pictures, or the like which are arranged or adapted to be arranged in one or more particular ways comprising elements to be used without a special support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/02—Slates
Definitions
- My invention relates to combining, with a slate used i'or school or other purposes, a ruler for said slate, in such a manner that the ruler when not in use may be kept securely ⁇ within the frame of said slate, and when needed is always at hand.
- Figurel is a view in perspective of a slate and ruler embodying my improvements, and showing how the same are combined.
- Fig. 2 is a vertical plane section through the center of that side of the frame of said slate into which the ruler when not in use is placed, and showing the slot or recess for the ruler, and the ruler lying within it.
- Fig. 3 shows a spring employed instead of a button to hold in the ruler.
- a A A A" are the respective sides of the frame of an ordinary slate, inclosing the slate itself.
- B is a long slot or recess, cut at the mid dle of the outer edge of side A into said side to a depth a very little greater than the width oi the ruler.
- This slot extends longitudinally in A, and is suiiciently long and wide to receive a ruler, R, and sufficiently deep to allow the ruler to lie in the recess and not protrude beyond the edge of the slate.
- a small portion of this recess at the end K is left covered with wood, or is cov- ⁇ ered with a flat piece of metal.
- R is a ruler made of any desirable material, sufficiently narrow and thin to be easily accommodated within the slot B, and just long enough to nicely bridge the length of slate S and restupon the pieces A A of the frame, as shown by the dotted lines, across the slate in Fig. 1. l
- the mode in which my improvement is used is as follows:
- the ruler R when not in use, is placed within the slotted recess B by rst putting one end of the ruler under the plate K, and
Description
INVENTR .P at ented Sep. v26, 1871.,
W. KNIGHT Figui.
@Qmbifed--- .Slat e) and H111@ WILLIAM KNIGIIT, OF COVINGTON, KENTUCKY.
IMPRovEMENT IN sLATE-FRAMS.
Specification forming part of Letters Patent No. 119,368, dated September 26, 1871.
To all whom it may concern:
Be it known that I, WILLIAM KNIGHT, of the city of Covington, inthe county of Kenton and State of Kentucky, have invented certain new and useful Improvements in School and other Slates, of which'the following is a specification:
My invention relates to combining, with a slate used i'or school or other purposes, a ruler for said slate, in such a manner that the ruler when not in use may be kept securely` within the frame of said slate, and when needed is always at hand.
In the accompanying drawing, forming part of this description, Figurel is a view in perspective of a slate and ruler embodying my improvements, and showing how the same are combined. Fig. 2 is a vertical plane section through the center of that side of the frame of said slate into which the ruler when not in use is placed, and showing the slot or recess for the ruler, and the ruler lying within it. Fig. 3 shows a spring employed instead of a button to hold in the ruler.
A A A A" are the respective sides of the frame of an ordinary slate, inclosing the slate itself. B is a long slot or recess, cut at the mid dle of the outer edge of side A into said side to a depth a very little greater than the width oi the ruler. This slot extends longitudinally in A, and is suiiciently long and wide to receive a ruler, R, and sufficiently deep to allow the ruler to lie in the recess and not protrude beyond the edge of the slate. A small portion of this recess at the end K is left covered with wood, or is cov-` ered with a flat piece of metal. Instead of this button any equivalent device--as for instance, a spring, L, (see Fig. 3,) upon the edge of A, or
a slide within the edge of A, to cover a portion of recess B-might be used. R is a ruler made of any desirable material, sufficiently narrow and thin to be easily accommodated within the slot B, and just long enough to nicely bridge the length of slate S and restupon the pieces A A of the frame, as shown by the dotted lines, across the slate in Fig. 1. l
I propose to make this ruler of thin sheet-iron, and to bend over its edges to give it the requisite thickness, and to, prevent its scratching the slate; but I do not limit myself to such form of ruler, or to any particular material in its manufacture.
The mode in which my improvement is used is as follows: The ruler R, when not in use, is placed within the slotted recess B by rst putting one end of the ruler under the plate K, and
then passing the rest of the ruler into slot B. The button A is then turned so as to cover and hold down one end of the ruler. As the other end of the ruler is kept down by the cover at K the ruler itself is securely held Within the slotted receptacle B.
The open recess B in the edge of a slate, in combination with the butt-on O or its equivalent, placed at one end of the recess, and the projection. K at the other end of said recess, for the retention of a ruler for said slate.
WILLIAM KNIGHT.
Witnesses:
HENRY ORANDELL JULEs, W. AUSTIN GOODMAN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US119368A true US119368A (en) | 1871-09-26 |
Family
ID=2188819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US119368D Expired - Lifetime US119368A (en) | Improvement in slate-frames |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US119368A (en) |
-
0
- US US119368D patent/US119368A/en not_active Expired - Lifetime
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