Browse Prior Art Database

HARDNESS GAUGE FOR SELENIUM

IP.com Disclosure Number: IPCOM000022746D
Original Publication Date: 1976-Jan-31
Included in the Prior Art Database: 2004-Mar-26
Document File: 2 page(s) / 208K

Publishing Venue

Xerox Disclosure Journal

Abstract

Hardness of selenium and its alloys with arsenic may be mea~- sured by means of an instrument employing the following parts: 1. A series of elastomer pads of differing hardness to each of which is attached;

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XEROX DISCLOSURE JOURNAL

HARDNESS GAUGE FOR SELENIUM Proposed Classification
J~F. Byrne U.S. CL 96/1,5
mt. CL G03g 5/04

Hardness of selenium and its alloys with arsenic may be mea~-
sured by means of an instrument employing the following
parts:

1. A series of elastomer pads of differing hardness to each
of which is attached;

2. A small bead, or several identical small beads; and

3, A relatively heavy weight covering all the elastomers,

In use, the assembly of weight, elastomers of different
hardness, and the small beads are placed on the area of the
selenium where the hardness is desired, The weight presses
down equally all over the underlying elastomers bearing the
beads, The beads in turn press down on the selenium and may
or may not leave their impression thereon depending on the
hardness of the elastomer holding the bead (or beads) in any
particular section of the gauge. The weight is permitted to
remain on the elastomers for a specified time period. On
removal of the gauge, the selenium will be seen to have a
number of small impressions. The hardness is that number
which specifies the elastomer having the highest hardness
overlying the impressions left by the beads, The instrument
will require calibration in terms of some accepted hardness
scale,

Volume 1 Number 1 January 1976 41

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42 XEROX DISCLOSURE JOURNAL

Volume 1 Number 1 January 1976

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