Differential and push-pull control system

Details Differential and push-pull control system Differential and push-pull control system

1977-05-10

1979-05-08

Scott, Samuel

Machine element or mechanism

Control lever and linkage systems

Multiple controlled elements

74501R, 74473R, 74479, 74484R, 74491, G01M 1168, G01P 320

Patent

active

041529502

ABSTRACT:
A two cable differential and push-pull system uses both cables simultaneously to operate a controlled device. The two cables are tensioned together or pushed together, or one cable is tensioned while the other is pushed, to operate a single device. Controls which have used separate cables for separate functions use paired cables for the multiple functions, reducing stress on individual cables without increasing the number of cables in the installation. In the illustrated transmission control a differential motion, which includes pushing and pulling forces, is applied through the cables to select a rail. A coincident pushing or pulling force is applied through both cables to shift the rail.

REFERENCES:
patent: 2561558 (1951-07-01), Bright
patent: 2618447 (1952-11-01), Lecarme
patent: 3541876 (1970-11-01), Gressard
patent: 3541877 (1970-11-01), Houk
patent: 3590934 (1971-07-01), Wappler et al.
patent: 3604284 (1971-09-01), Houk
patent: 3611827 (1971-10-01), Bottum et al.
patent: 3620096 (1971-11-01), Scolari
patent: 3625302 (1971-12-01), Lauck
patent: 3808907 (1974-05-01), Yamaguchi
patent: 3831633 (1974-08-01), Comer
patent: 3891042 (1975-06-01), Braun
patent: 3936014 (1976-02-01), Morin
patent: 4060005 (1977-11-01), Bost

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