Joints and connections – With indicator or inspection means
Patent
1981-06-22
1983-10-11
Kundrat, Andrew V.
Joints and connections
With indicator or inspection means
403 43, 411 10, B25G 300
Patent
active
044089252
ABSTRACT:
A turnbuckle assembly has a self-contained tension pre-load indicator utilizing internally mounted compact conical spring washers (belleville washers) and a radially projecting movable stem which is rendered immovable when the washers are fully compressed into a flat configuration. The turnbuckle sleeve has an arcuate slot through which the stem extends for accessibility to the operator who determines the attainment of the desired tension pre-load force by the immovability of the stem. The stem is connected to a plane washer disposed adjacent to but slightly axially spaced from the peripheral convex edge surface portions of the end spring washer which when flattened engages the plane washer and prevents it from moving.
REFERENCES:
patent: 97238 (1869-11-01), Shock
patent: 3389924 (1968-06-01), Bush et al.
patent: 3925869 (1975-12-01), Thompson
GTE Products Corporation
Kundrat Andrew V.
Lawler John F.
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