发明名称 |
Flow camera film transport |
摘要 |
A flow camera having film that moves only when an exposure is being made. A three-piece cassette is assembled and coacts with film path rollers for easy threading upon the rotation of a knob. Subsequent rotation of the knob fastens the cassette in place and positions capstan and dancer rollers for defining the operating film path. A double spring determines the egress film tension and a lever-roller combination having mechanical connection to the ingress dancer arm determines the ingress film tension. A fast slow motion is provided by acting upon the mechanical connection between the ingress dancer arm and the ingress film clutch.
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申请公布号 |
US4007889(A) |
申请公布日期 |
1977.02.15 |
申请号 |
US19750621255 |
申请日期 |
1975.10.09 |
申请人 |
TERMINAL DATA CORPORATION |
发明人 |
LANGFORD, FORREST L. |
分类号 |
G03B19/18;G03B1/56;G03B17/26;G03B27/32;G03B27/58;(IPC1-7):G03B1/04;G11B15/32;G11B23/04 |
主分类号 |
G03B19/18 |
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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