US298891A - Assigitob to augustus waekee - Google Patents
Assigitob to augustus waekee Download PDFInfo
- Publication number
- US298891A US298891A US298891DA US298891A US 298891 A US298891 A US 298891A US 298891D A US298891D A US 298891DA US 298891 A US298891 A US 298891A
- Authority
- US
- United States
- Prior art keywords
- frame
- slate
- strip
- augustus
- waekee
- 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
- 239000004744 fabric Substances 0.000 description 8
- 239000010454 slate Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 235000013405 beer Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001419 dependent Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000002459 sustained Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
- H01L21/76229—Concurrent filling of a plurality of trenches having a different trench shape or dimension, e.g. rectangular and V-shaped trenches, wide and narrow trenches, shallow and deep trenches
Definitions
- My invention relates to a modification of an improvement in noiseless slates for which Letters Patent of the United States were granted to me on the 5th day of June,1883, No.278,744.
- a strip of cloth or other suitable material is drawn around the edge of the slate-frame and secured by means of notches in said frame and by keys securing the strip therein.
- a corded fabric is thought to be more durable than a loom-woven material; and to the furtherance of this object my present invention is designed.
- the edge of the slate-frame is notched in a dovetailed 7 form, though recesses whose sides are parallel will serve the purpose.
- Figure 1 represents a side View of a section of the slate and frame embracing a corner.
- Fig. 2 is a section dividing the frame parallel -to the plane of the slate-
- Fig. 3 is a cross-section of the frame on a line near the inner terminals of the recesses.
- A represents the slate-tablet
- B the slateframe
- ct is the mufling-strip
- a is a mufiiing and binding cord.
- strip a is drawn into each recess,where it is secured by the tightly-drawn and interlacing cord a.
- cord and cloth By the combination of cord and cloth, as herein shown and set forth, a cord of proportionate and reasonable diameter, and not too far removed from the edge of the slate-frame, in 5o combination with a strip no wider than the thickness of said frame, will protect the latter from solid contact with the desk-that is, if the cord is placed proportionately to its diameter sui'iiciently near the edge of the frame, 55 an angle drawn from its upper-surface to the edge of strip a, although the latter does not extend to a greater distance than the thickness of said frame, will protect any uncovered portionof thelatterfrom contact.
- Fig. 3 the cord is shown removed from the sides of the frame to better deiine it, thoughy in practical use it is drawn tightly.
- the strip a In combination with a slate-frame provided with notches or recesses, the strip a, conforming to the indented edge of said frame, andthe binding-cord a, drawn directly from notch to notch, substantially as and for the purpose set forth'.
Description
J. RIDGE.i
NoIsBLBss SLATE.
(No ModeL.)
No. 298,891. Patented May 20, 1884.
aufn/ossea.
NITED Srnfrns JOSEPH RIDGE, OF CHICAGO, ILLINOIS, ASSIGNOR TO AUGUSTUS WARNER AND JOHN H. BEERS, BOTH OF SAME PLACE.
NOISELESS SLATE.
SPECIFICATION forming part of Letters Patent No. 298,891, dated May 20, 1884. Application filed November 19, 1883. (No model.)
T @ZZ whom, it may concern.:
Beit known that I, JOSEPH RIDGE, of the city of Chicago, county of Cook, and State of Illinois, have invented new and useful Improvements in Noiseless Slates, of which the following` is a full and complete description,
tablet.
reference being had to the accompanying drawings.
My invention relates to a modification of an improvement in noiseless slates for which Letters Patent of the United States were granted to me on the 5th day of June,1883, No.278,744. In the instance referred to a strip of cloth or other suitable material is drawn around the edge of the slate-frame and secured by means of notches in said frame and by keys securing the strip therein. By this construction a noiseless side contact is dependent entirely upon said strip, whose edges project beyond the limit in thickness ofthe slate-frame. A corded fabric is thought to be more durable than a loom-woven material; and to the furtherance of this object my present invention is designed. In the present example the edge of the slate-frameis notched in a dovetailed 7 form, though recesses whose sides are parallel will serve the purpose.
In the drawings, Figure 1 represents a side View of a section of the slate and frame embracing a corner. Fig. 2 is a section dividing the frame parallel -to the plane of the slate- Fig. 3 is a cross-section of the frame on a line near the inner terminals of the recesses.
A represents the slate-tablet; B, the slateframe. ct is the mufling-strip, and a is a mufiiing and binding cord.
B represents the notches or recesses in the frame. Said notches B', for a better appearance of the slate When mufded and to a better protection of the sides of the frame, should occur at or about even intervals around the ,edge
of said frame.
As apparent from the drawings, strip a is drawn into each recess,where it is secured by the tightly-drawn and interlacing cord a. By the combination of cord and cloth, as herein shown and set forth, a cord of proportionate and reasonable diameter, and not too far removed from the edge of the slate-frame, in 5o combination with a strip no wider than the thickness of said frame, will protect the latter from solid contact with the desk-that is, if the cord is placed proportionately to its diameter sui'iiciently near the edge of the frame, 55 an angle drawn from its upper-surface to the edge of strip a, although the latter does not extend to a greater distance than the thickness of said frame, will protect any uncovered portionof thelatterfrom contact. The greater 6o use of the slate, and consequent wear, is on the sides of the slate-frame. When mufiie'd as herein described, the burden of this wear is sustained by the cord, the cloth strip being only incidentally brought into contact with the o 5 desk.
In Fig. 3 the cord is shown removed from the sides of the frame to better deiine it, thoughy in practical use it is drawn tightly.
Having thus fully described my said inven- 7o tion, what I claim, and desire to secure by Letters Patent, is-
In combination with a slate-frame provided with notches or recesses, the strip a, conforming to the indented edge of said frame, andthe binding-cord a, drawn directly from notch to notch, substantially as and for the purpose set forth'.
JOSEPH RIDGE.
Vitnesses: S. B. CLARK,
G. I. WAGNER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US298891A true US298891A (en) | 1884-05-20 |
Family
ID=2368071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US298891D Expired - Lifetime US298891A (en) | Assigitob to augustus waekee |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US298891A (en) |
-
0
- US US298891D patent/US298891A/en not_active Expired - Lifetime
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