US100799A - Improvement in writing-slates - Google Patents
Improvement in writing-slates Download PDFInfo
- Publication number
- US100799A US100799A US100799DA US100799A US 100799 A US100799 A US 100799A US 100799D A US100799D A US 100799DA US 100799 A US100799 A US 100799A
- Authority
- US
- United States
- Prior art keywords
- writing
- improvement
- slates
- slate
- frame
- 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
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W10/00—Isolation regions in semiconductor bodies between components of integrated devices
- H10W10/01—Manufacture or treatment
- H10W10/011—Manufacture or treatment of isolation regions comprising dielectric materials
- H10W10/014—Manufacture or treatment of isolation regions comprising dielectric materials using trench refilling with dielectric materials, e.g. shallow trench isolations
- H10W10/0143—Manufacture or treatment of isolation regions comprising dielectric materials using trench refilling with dielectric materials, e.g. shallow trench isolations comprising concurrently refilling multiple trenches having different shapes or dimensions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W10/00—Isolation regions in semiconductor bodies between components of integrated devices
- H10W10/10—Isolation regions comprising dielectric materials
- H10W10/17—Isolation regions comprising dielectric materials formed using trench refilling with dielectric materials, e.g. shallow trench isolations
Definitions
- the masses of rubber ⁇ or elastic material may be inserted and arranged, as explained, in each oftheopposite ends of the frame as 'welllas in its sides.
- 'Ihese elastic buers serve to suppolt the writing-slate 'when laid upon a desk .or table, and they not only operate to prevent it from sliding oli' Va desk, .bntalso from making a noise when ⁇ laid dow-n upon the desk or' a table or other body.
- My improvement can readily be applied to almost any-'common'writing-slate having a wooden frame, thereby rendering it less liable to become broken while n1 use.
- slateframes have been provided with elastic cushions, by inserting cylinders of rubber through holes made in the flames, so that the ends of thecylinders may extend beyond the sides of the frames.
- ARings or bands of rubber have also been carried Aaroundthe vbars of the frame, and been forced into witnesseses It. H. EDDY, S. N. PIPER.
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- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Description
hindert genna aient @Wire Toall persons to whom these presente may lcome:
-GEORGE EDWIN Poor, 4or cHAnLEsfroWN, MASSACHUSETTS.
. Letter-.@Putent No. 100,799, dated March I5, 1870.
IMPROVEMENT IN WRITINGSLATES.
The Schedule referred to in these Letters Patent and making part of the saine `Be it known that I, GEORGE EDWIN POOR, of
Charlestown, in the county of Middlesex, and State of Massachusetts, have made 'a new and useful invention or improvement having reference to Writing- Slates; and do herebydeclare the Isame to be fully described in the following specification, and represented in tlie accompanying drawings, of which- Figure 1 is a side view;
,Figure 2, 'a top view; and
Figure 3, an edge elevation of' a writing-slate provided with my invention. l
In carrying.` out Amy improvement, I form the fi'ame A of the slate-tablet B with a series ot' dovetailed recesses, a', to receive cylindrical or round and dovetailed masses or buers, b, of India rubber, or an equivalent elastic material, each ofthe masses being placed and fastened therein, and arranged so as to project beyond the edge as well as each of the opposite sides of the frame, in manner :is-represented `in the drawings.
The masses of rubber `or elastic material may be inserted and arranged, as explained, in each oftheopposite ends of the frame as 'welllas in its sides. 'Ihese elastic buers serve to suppolt the writing-slate 'when laid upon a desk .or table, and they not only operate to prevent it from sliding oli' Va desk, .bntalso from making a noise when `laid dow-n upon the desk or' a table or other body.
` I am aware that a writing-slate has had` its frame made of India rubber,-as shown in sundry' patents heretofore granted therefore I make no claim to such `as my invention.
My improvement can readily be applied to almost any-'common'writing-slate having a wooden frame, thereby rendering it less liable to become broken while n1 use.
. I amalso aware that, prior to my invention, slateframes have been provided with elastic cushions, by inserting cylinders of rubber through holes made in the flames, so that the ends of thecylinders may extend beyond the sides of the frames.
The corners of slate-frames have also been .protected by elastic coverings.
ARings or bands of rubber have also been carried Aaroundthe vbars of the frame, and been forced into Witnesses It. H. EDDY, S. N. PIPER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US100799A true US100799A (en) | 1870-03-15 |
Family
ID=2170264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US100799D Expired - Lifetime US100799A (en) | Improvement in writing-slates |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US100799A (en) |
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0
- US US100799D patent/US100799A/en not_active Expired - Lifetime
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