| 摘要 |
<p>1,079,437. Counters. SPERRY RAND CORPORATION. June 2, 1965 [June 8, 1964], No. 23581/65. Headings G4D and G4P. [Also in Division F2] A stepping mechanism for digital data pro. cessing equipment comprises a wheel or rack 10 having teeth 16 . . . 23 with assymetric faces a, b and two jets 44, 46 so spaced that when one of the jets (e.g. 44) is aligned with one of the ducts 25 . . . 40 between the teeth the other jet is opposite one of the faces b. A fluid amplifier 48 selectively directs fluids (e.g. air) from a source 50 to the jets 44, 46 in response to fluid flow through control jets 62, 64. When fluid flows through the jet 44 with the wheel 10 in the position shown it passes through the duct 40 to a central aperture 42 and hold the wheel stationary. When the supply of fluid is switched from the jet 44 to the jet 46 the flow from the latter impinges on the face b of tooth 23 and thus turns the wheel 10 until the jet 46 is aligned with the duct 40. With the wheel in this position the jet 44 is opposite the face b of tooth 16 so that further switching of the fluid supply will cause further rotation of the wheel 10. The fluid amplifier may be of the self-locking type wherein fluid keeps flowing from the source to one of the jets after the initiating control flow has ceased. A number of fluid inputs may operate on a single wheel. In Fig. 7 (not shown) alternate flow from jets (102, 104) causes stepped rectalinear movement of a rack (90).</p> |
