Browse Prior Art Database

Glass Polishing Fixture

IP.com Disclosure Number: IPCOM000088241D
Original Publication Date: 1977-May-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

DuBois, LW: AUTHOR [+3]

Abstract

Described is a fixture which is adapted to hold a glass panel, such as a gas display panel, in position for lapping one or both of its sides. Gas panels typically comprise a pair of plates which are spaced apart and sealed around the edges to form an inner chamber which is filled with ionizable gas through a nipple which projects from the back of the panel. During manufacture, the exposed surfaces of the glass plates may be damaged and, therefore, require lapping or grinding within the viewing area.

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Glass Polishing Fixture

Described is a fixture which is adapted to hold a glass panel, such as a gas display panel, in position for lapping one or both of its sides. Gas panels typically comprise a pair of plates which are spaced apart and sealed around the edges to form an inner chamber which is filled with ionizable gas through a nipple which projects from the back of the panel. During manufacture, the exposed surfaces of the glass plates may be damaged and, therefore, require lapping or grinding within the viewing area.

The fixture generally comprises a plate 10 having a backing surface 12, defined thereon, that is adapted to receive and retain the panel. The backing surface is recessed with respect to the periphery of the plate, whereby panel- engaging edges 14 are formed around the edge of the plate coincident with the edges of the panel. A plurality of TEFLON* washers 16 are removably engaged with the plate, adapted to overlap the edges of the panel and retain it against the backing surface.

The Fig. 1 embodiment is designed for grinding the back surface of the panel and includes a corner bracket 20 which supports a tubulation 22 having a roller 24 mounted in rotatable relationship therewith. The tubulation and roller are supported about the nipple which extends upwardly when the panel is secured against the backing surface. The roller serves to engage and deflect the grinding wheel or other objects which might be contacted in the grinding operation.

In the...