US101798A - Improvement in slate-frames - Google Patents
Improvement in slate-frames Download PDFInfo
- Publication number
- US101798A US101798A US101798DA US101798A US 101798 A US101798 A US 101798A US 101798D A US101798D A US 101798DA US 101798 A US101798 A US 101798A
- Authority
- US
- United States
- Prior art keywords
- slate
- frame
- compound
- corners
- improvement
- 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
- 150000001875 compounds Chemical class 0.000 description 36
- 239000010454 slate Substances 0.000 description 10
- 240000002027 Ficus elastica Species 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920001195 polyisoprene Polymers 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching Effects 0.000 description 2
- 239000002023 wood Substances 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
- the object of the' invention is to'prevent noise in the use ofthe slate or when it falls, and to prevent it from 'breaking when it falls, and to prevent the slate. frame from marring or scratching whatever it rests upon.
- the corners of the frame are rounded a little, if they are not already, and three holes of, sa-y, one-sixteenth to one-eighth of an inch in diameter, are bored through the frame near the corners, as seen in the drawing, one near the corner of the slate, near the inner edge of the frame, and the others near the outer edges of the frame, and which are lled, also, with the compound, in the process of vulcanizing it upon the corners, as aforesaid, and which the more securely fastens the compound upon the corners ofv the frame, and fastens the slate-frame together the stronger.
- the drawing contains but one figure, and represents one side of the common slate-flame and slate, with my improvements complete on three of the corners, and
- one corner, D with the compound shaved off on the side exposed to view, as seen in the drawing, in order that it may be-the better seen in what manner the corners are covered with said compound and the holes through the corners filled.
- A is the slate
- C is the compound, vulcanized onto the corners, as aforesaid, and shaped as seen inthe drawing, the compound extending outside the corners and edge of. the slate-frame some one-sixteenth of an inch or so, and is about that thickness on each side of the frame.
- D are the holes before spoken of, made through the corners of the frame, and which are filled with the compound when the corners are covered with it, as aforesaid, and hence, in the process of vulcanizing the compound onto the corners of the frame, the compound in the holes is united to the compound on thc sides of the frame'.
Description
dutd @States @me eine.
Letters .Patent No. 101,798, dated April 12, 1870.
-*bop* IMPROVEMENT IN SLATETFRAMESV.
The Schedule referred to in these Letters Patent and makugpart of the same.
I, WILLIAM A. WILBE, of Malden, in the county of Middlesex and State of Massachusetts, have invented an Improvement in School Slate-Frames, of which the following is a description and specification.
A Nature (mtl Object of thel Invention.
It is made by vnlcanizing India-rubber compound, or other elastic compound, upon the corners of the common slate-frame, so as to entirely cover the wood part of 'the slate-frame at the corners, on the outer edge and sides, and so shaped on the sides of the frame that the edges of the compound, form a line with the inner edges of the frame, as represented in the drawing hereto annexed, so that in whatever position the slate-frame may be, when the corners are thus covered with the compound as aforesaid, whether setting up edgewise or lying flatwise upon the bench, desk, or table, the bearing will be wholly uponsaid compound.
The object of the' invention is to'prevent noise in the use ofthe slate or when it falls, and to prevent it from 'breaking when it falls, and to prevent the slate. frame from marring or scratching whatever it rests upon.
To prepare the counnon slate-frame for vulcanizing the rubber, or other elastic compound, upon the corners as aforesaid, the corners of the frame are rounded a little, if they are not already, and three holes of, sa-y, one-sixteenth to one-eighth of an inch in diameter, are bored through the frame near the corners, as seen in the drawing, one near the corner of the slate, near the inner edge of the frame, and the others near the outer edges of the frame, and which are lled, also, with the compound, in the process of vulcanizing it upon the corners, as aforesaid, and which the more securely fastens the compound upon the corners ofv the frame, and fastens the slate-frame together the stronger.
Description. of the Accompanying Drawing.
The drawing contains but one figure, and represents one side of the common slate-flame and slate, with my improvements complete on three of the corners, and
one corner, D, with the compound shaved off on the side exposed to view, as seen in the drawing, in order that it may be-the better seen in what manner the corners are covered with said compound and the holes through the corners filled.
General Description.
A is the slate, and
B, the frame of it in common use.
C is the compound, vulcanized onto the corners, as aforesaid, and shaped as seen inthe drawing, the compound extending outside the corners and edge of. the slate-frame some one-sixteenth of an inch or so, and is about that thickness on each side of the frame.
D are the holes before spoken of, made through the corners of the frame, and which are filled with the compound when the corners are covered with it, as aforesaid, and hence, in the process of vulcanizing the compound onto the corners of the frame, the compound in the holes is united to the compound on thc sides of the frame'.
I claim as my inventionrlhe vulcanizing of the India-rubber compound, or other elastic compound, onto the corners of the common slate-frame, to wit: the parts C and D, as shown in the drawing.
- XVILLIAM A'. VILDE.
Witnesses:
E. B. SMrrH, 'L. W. Howes.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US101798A true US101798A (en) | 1870-04-12 |
Family
ID=2171273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US101798D Expired - Lifetime US101798A (en) | Improvement in slate-frames |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US101798A (en) |
-
0
- US US101798D patent/US101798A/en not_active Expired - Lifetime
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