发明名称 |
Dynamic strength tester for paper cores |
摘要 |
<p>A testing apparatus for determining dynamic strength of sample paper cores includes a rotatably driven pneumatic chuck for engaging the inner surface of a sample core to rotatably drive the sample core, and a variable-tension belt assembly having a flexible belt which is looped over the sample core and tensioned to simulate the load applied to a paper core in actual use. The belt is tensioned by a pneumatic cylinder which is controlled under feedback control by a servo valve and a computer controller so that the load applied to the sample core accurately tracks a predetermined desired load schedule versus time. <IMAGE></p> |
申请公布号 |
EP0969278(A2) |
申请公布日期 |
2000.01.05 |
申请号 |
EP19990301013 |
申请日期 |
1999.02.11 |
申请人 |
SONOCO PRODUCTS COMPANY |
发明人 |
STAPLES, JOHN FREEMAN;TAYLOR, DENNIS;VAN DE CAMP, JOHANNES W.;LYLES, STEVE;STEPHENS, JASON T. |
分类号 |
G01N3/02;G01N3/32;G01N33/00;G01N33/34;(IPC1-7):G01N3/32 |
主分类号 |
G01N3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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