发明名称 |
Step and repeat mechanism |
摘要 |
Apparatus for moving sheet material, primarily microfiche, into a plurality of X and Y axis positions by means of a gas cushion formed on a plate in which the sheet material is shifted by means of ducted gas jets or sweeps; location of the sheet material is achieved by means of movable stops, sweeps or sensors; the stops are controlled by electromagnets or pneumatic means; a feed device is provided in one example to feed the sheet material onto the gas cushion and to enable removal of the sheet material from the apparatus.
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申请公布号 |
US4176947(A) |
申请公布日期 |
1979.12.04 |
申请号 |
US19770838724 |
申请日期 |
1977.10.03 |
申请人 |
H A H SPENCE BATE |
发明人 |
BAIN-SMITH, TIMOTHY;SPENCE-BATE, HARRY A H |
分类号 |
G03B27/32;G03B27/58;(IPC1-7):G03B27/32;G03B27/42;G03B27/62 |
主分类号 |
G03B27/32 |
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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