Servomotors

"Servomotor" means a fluid-pressure actuator, e.g. a piston and cylinder, directly controlled by a valve or other device which is responsive to operation of an initial controlling member. The initial controlling member may be adjacent to the servomotor or at a distance, and could be a hand lever. The "servomotor" does not include telemotors, meaning a system or device in which a substantially constant amount of fluid is trapped between an input member and an output member to act as a fluid link.

Questions

• I can't tell without more examples how to distinguish telemotors from servomotors. In the first example, is the valve responding to something external? Whereas the telemotor is one in which the input member IS the control, and there is no intervening valve? Then we can give an example of a telemotor that will make the distinction clear. Econterms (talk) 19:53, October 26, 2019 (UTC)

References

This wiki has 12 patents in category "Servomotors".

Patents in category Servomotors

• Patent US-1869-88431 (English title: Improvement in devices for controlling fluids under pressure, Inventors: Jearum Atkins, Filing date: 1869-03-30)
• Patent GB-1891-19228 (English title: Flying machine, Inventors: Hiram Stevens Maxim, Filing date: 1891-11-06)
• Patent US-1898-626071 (English title: Stop mechanism for engines, Inventors: Joseph Matthews, Filing date: 1898-09-22)
• Patent FR-1909-407737 (English title: Gyroscopic stabilizers for devices moving in fluid media, Inventors: Paul-Nicolas Lucas-Girardville, Filing date: 1909-01-06)
• Patent US-1912-1201648 (English title: Method of and apparatus for balancing aircraft, Inventors: John P. Tarbox, Filing date: 1912-08-15)
• Patent FR-1913-468076.19580 (English title: Implement of transmission linking up at will motors and the servomotor of a dirigible, between them and otherwise serving, Inventors: Adolphe Clément-Bayard, Supplementary to patent: Patent FR-1913-468076, Filing date: 1913-03-14)
• Patent FR-1913-468076 (English title: Implement of transmission linking up at will motors and the servomotor of a dirigible, between them and otherwise serving, Inventors: Adolphe Clément-Bayard, Filing date: 1913-04-13)
• Patent US-1913-1086465 (English title: Power steering-gear, Inventors: Edward P. Robinson, Filing date: 1913-05-09)
• Patent BE-1914-266182 (English title: Possibly dirigible transmission apparatus, based on successor patent, or possibly the aircraft more generally, Inventors: Adolphe Clément-Bayard, Supplementary to patent: Patent FR-1913-468076, Filing date: 1914-03-30)
• Patent BE-1914-274451 (English title: (addition) – Transmission apparatus binding the motors and the servo-motor of a dirigible, between them and taking auxiliary functions into account, patent granted, 30 March 1914, under the no. 266182 ; improvements constituting the object of a patent filed in France, 10 December 1914, Inventors: Adolphe Clément-Bayard, Supplementary to patent: Patent BE-1914-266182 • Patent FR-1913-468076 • Patent FR-1913-468076.19580, Filing date: 1914-12-10)
• Patent FR-1916-520777 (English title: Device for automatic stabilization of flying machines, Inventors: François Dergint, Filing date: 1916-10-23)
• Patent US-1917-1472257 (English title: Servo-motor for aeroplanes, Inventors: Morris M. Titterington, Filing date: 1917-11-09, Applicant firm: Sperry Gyroscope Company)

Enclosing categories	Motors, Actuators
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