US166523A - Improvement in slate-frames - Google Patents

Improvement in slate-frames Download PDF

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Publication number
US166523A
US166523A US166523DA US166523A US 166523 A US166523 A US 166523A US 166523D A US166523D A US 166523DA US 166523 A US166523 A US 166523A
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Prior art keywords
slate
covering
frames
improvement
frame
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Expired - Lifetime
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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

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  • I slates 3 and it consists in covering the frame of the slate with felt, or other suitable material, which covering has a bead formed all the way around the frame, so as to completely deaden the sound made by the slate in coming in contact with the desk or other objects.
  • Figure l is a side elevation of my invention.
  • Fig. 2 is a detail view of the same, showing different-shaped beads.
  • a represents a common school-slate, the frame of which is covered With'a jacket of felt, c, which jacket or covering is provided with a bead, e, of the same material, and of any desired shape or thickness.
  • this covering serves to a considerable extent to deaden the noise made by the striking of the slate against benches and other hard objects,but does not entirely obviate the great noise that is always made in a school-room.
  • the covering is made sufficiently thick to entirely deaden all noise Without making the covering so thick as to be clumsy and bungling.
  • I claim rIlhe slate-frame having a covering, C, of felt or similar material, provided with a bead, e, substantially as shown and described.

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Description

UNITED STATES PATENT OFFICE.
JOHN HAGGERTY, OF CORRY, PENNSYLVANIA, ASSIGNOR OF ONE-HALF HI RIGHT TO V. Gr. CURTIS, OF SAME PLACE.
IMPROVEMENT IN SLATE-FRAMES.
Specilication forming part of Letters Patent No. 166,523, dated August 10, 1875 application tiled May 26, 1875.
I slates 3 and it consists in covering the frame of the slate with felt, or other suitable material, which covering has a bead formed all the way around the frame, so as to completely deaden the sound made by the slate in coming in contact with the desk or other objects.
Figure lis a side elevation of my invention. Fig. 2 is a detail view of the same, showing different-shaped beads.
a represents a common school-slate, the frame of which is covered With'a jacket of felt, c, which jacket or covering is provided with a bead, e, of the same material, and of any desired shape or thickness. Where the frame is simply covered with felt or rubber this covering serves to a considerable extent to deaden the noise made by the striking of the slate against benches and other hard objects,but does not entirely obviate the great noise that is always made in a school-room. By making this bead as a part of the covering, the covering is made sufficiently thick to entirely deaden all noise Without making the covering so thick as to be clumsy and bungling.
Having thus described my invention, I claim rIlhe slate-frame having a covering, C, of felt or similar material, provided with a bead, e, substantially as shown and described.
In testimony that I claim the foregoing I have hereunto set my hand this 1st day of May, 1875. A
JOHN HAGGERTY.
Witnesses:
S. A. HoLLIsTER, H. O. LINscoTT.
US166523D Improvement in slate-frames Expired - Lifetime US166523A (en)

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US166523A true US166523A (en) 1875-08-10

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US166523D Expired - Lifetime US166523A (en) Improvement in slate-frames

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040120950A1 (en) * 2002-12-20 2004-06-24 Kari Alitalo Modulation of VEGF-C/VEGFR-3 interactions in the treatment of rheumatoid arthritis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040120950A1 (en) * 2002-12-20 2004-06-24 Kari Alitalo Modulation of VEGF-C/VEGFR-3 interactions in the treatment of rheumatoid arthritis

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