| 摘要 |
An automatic lubricator which includes a cylindrical oil container, a piston reciprocated in the oil container, a container holder covered on the bottom open end of the oil container and having an oil inlet and an oil outlet, two reversed coil springs concentrically mounted in the oil container to force the piston downwards in closing the oil inlet and oil outlet of the container holder, a control switch fixed to the container holder and having an adjustment screw turned to control the flow rate of the oil outlet, and a valve assembly installed in a hole on the control switch to control the passage of the oil inlet of the container holder.
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