发明授权
US4236481A Measuring instrument 失效
测量仪器

Measuring instrument
摘要:
A dial type indicator in which the zero point on a scale fixed to a rotatable tubular outer frame can be set to the position of the pointer by rotating the outer frame around a circular inner frame. An elastic element at one side of the inner frame is pressed against the inner peripheral face of the outer frame by compressing the element in the thickness direction of the inner frame, using a manually adjustable arrangement to compress the element and cause it to extend laterally. In this manner the inner and outer frames can be reliably fastened together without damage to the outer frame and the operability of the outer frame is improved.
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