G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 5/08 (2006.01) G01L 1/02 (2006.01)
Patent
CA 2292081
A force gage for measuring a tensile force in a pneumatically-operated device, includes a parallelogram linkage having a pair of longitudinal arms in spaced- apart parallel disposition, and a pair of transverse arms in spaced-apart parallel disposition and hingedly interconnecting the longitudinal arms, with a first one of the longitudinal arms being acted upon by a tensile force and movable by the tensile force in the direction of the tensile force, whereby the pair of longitudinal arms is oriented in a direction parallel to the tensile force. A probe is positioned between the transverse arms and securely fixed to a second one of the longitudinal arms for generating a pneumatic pressure signal commensurate with the tensile force. The probe has a casing and a sensing element which projects out of the casing and is acted upon in dependence on the tensile force by a force-applying structure which may be either the first longitudinal arm or one of the transverse arms. In order to permit application of the force gage for hoists of varying load-carrying capability, a first elastic element is connected with at least two of the pair of longitudinal arms and the pair of transverse arms, such that the movement of the first longitudinal arm in response to the tensile force is opposed by an elastic force applied by the first elastic element, and a second elastic element, with the sensing element being connected in series with the second elastic element and supported by the force-applying structure.
Bittenbinder Wolfgang
Kuhn Robert
Fetherstonhaugh & Co.
Mannesmann Aktiengesellschaft
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