Self Locking Pivot Mount for Machine Mounted Devices

1) Enclosed mechanism self locking pivot mount for devices used on machines comprising:

• a pivot shaft, said pivot shaft comprising a nominally cylindrical shape, one or multiple receptacles operable to engage one or multiple pins and provisions for connecting a structure or device along a portion of its length;
• one or multiple locking pins, said locking pin or multiple pins each comprising a shape, dimensions and material strength operable to engage one or multiple pivot shaft pin receptacles and restrain rotation of the pivot shaft when engaged;
• one or multiple springs, said spring or multiple springs comprising a spring force and length sufficient to hold the pivot shaft laterally against the locking pin or multiple pins, move the pivot shaft laterally so as to engage the locking pin or multiple pins with one or multiple pivot shaft receptacles when said pin or multiple pins and receptacle or multiple receptacles align and retain said engagement;
• a fixed mount, said fixed mount enclosing the self locking mechanism, said self locking mechanism comprised of a pivot shaft comprising one or multiple locking pin receptacles, one or multiple locking pins and one or multiple springs, said fixed mount structure comprising a housing for the pivot shaft, said pivot shaft housing comprising a non-restraining rotating and sliding fit for the pivot shaft, said fixed mount structure further comprising one or multiple spring cavities, said spring cavities comprising a shape and dimensions that accommodate one or multiple springs, said one or multiple spring cavities further comprising intersection with the pivot shaft housing and operable to interface one or multiple springs with the pivot shaft, said fixed mount further comprising one or multiple holes to accommodate one or multiple locking pins, said locking pin hole or multiple holes intersecting the pivot shaft housing.