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1. 发明专利

GB1111229A Improvements in or relating to filmstrip cassettes 未知
公开(公告)号：GB1111229A
公开(公告)日：1968-04-24
申请号：GB4878265
申请日：1965-11-17
申请人： JOHN ALBERT BELL , GALLEY GEOFFREY H
IPC分类号： G03B17/30

2. 发明专利

GB1111228A Improvements in or relating to film transport mechanism 未知
公开(公告)号：GB1111228A
公开(公告)日：1968-04-24
申请号：GB4877965
申请日：1965-11-17
申请人： JOHN ALBERT BELL , JEOFFREY HARRISON GALLEY
IPC分类号： G03B1/18 , G03B1/40
摘要： 1,111,228. Friction gearing. J. A. BELL and G. H. GALLEY. 15 Nov., 1966 [17 Nov., 1965], No. 48779/66. Heading F2Q. In a film transport mechanism for a teaching machine, including a drum 5 open at one end and coupled to a film-engaging sprocket (not shown), momentary energization of a solenoid 13 moves a link 11 to bring a friction wheel 10, supported by a swing-link 7 and driven by a reversible motor (not shown) via a belt and pulley 14, into driving contact with one surface of the drum to rotate the latter, a pinch wheel 15 on the link 11 engaging the other drum surface to maintain said driving contact until the pinch wheel drops into an axial slot 6 in the drum to allow friction wheel 10 to cease contacting the drum. The spacing of slots 6 is chosen so that each driving step moves the film one frame. The drive direction may be controlled by a photo-electric circuit reading from the film. The solenoid 13 may be controlled by a telephone dial which feeds pulses to the solenoid, the step time of the mechanism being less than the time between pulses. For continuous drive for rewinding, solenoid 13 is energized continuously. In a modification, the friction wheel and pinch wheel are supported by parallel links, the solenoid acting on a vertical link pivoted to the parallel links intermediate their ends. A spring acting on the upper link urges the friction wheel towards its disengaged position.

3. 发明专利

GB1104377A Improvements in or relating to automatic analytical and control apparatus 未知
公开(公告)号：GB1104377A
公开(公告)日：1968-02-28
申请号：GB1781765
申请日：1965-04-28
申请人： GERALD DAVID WHITLOCK , JOHN ALBERT BELL
IPC分类号： G05D11/13
摘要： An automatic analytical and control apparatus for the continuous or intermittent testing of mixtures having components which migrate under the influence of a force field, and which is suitable for the retroactive control of chemical processes, comprises a cell 1 into which a solution, e.g. of glucose is deionized water, is fed through a plurality of inlets 2. This solution has been so modified in 3 as to provide a series of solutions have a systematically varying density, pH or conductivity gradient. Continuous laminar flow is set up so that there is a continuous gradient from top to bottom of the cell. Samples of test solutions or suspensions from line 17 are fed in from duct 20 and are split into the vertical components by the gravitational or electrical field. If desired, these samples may be mixed in 19, with reagents or solvents which alter the mobility of the components before entering the cell. Any desired component of the sample is monitored by means of tube 21 which leads to measuring device 22, which in turn is used to control mixing valve 16 which governs the relative amounts of materials A and B entering line 17. The particular embodiment shown illustrates a mechanically unsupported electro-phoretic cell having electrodes 14 in compartments separated from the main body of the cell by semi-permeable membranes 9 and 10. Electrolyte from a reservoir 12 is circulate through the electrode compartments.

4. 发明授权

US3506173A Film transport mechanism 失效
公开(公告)号：US3506173A
公开(公告)日：1970-04-14
申请号：US3506173D
申请日：1968-05-27
申请人： JOHN ALBERT BELL , GALLEY GEOFFREY H
发明人： BELL JOHN ALBERT , GALLEY GEOFFREY HARRISON
IPC分类号： G03B1/18 , G06K13/22 , B65H17/04
CPC分类号： G06K13/22 , G03B1/18

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