Cutting – Means to drive or to guide tool – Means to change datum plane of tool or tool presser stroke
Patent
1998-06-23
2000-03-28
Rada, Rinaldi I.
Cutting
Means to drive or to guide tool
Means to change datum plane of tool or tool presser stroke
83527, 100257, 72446, B26B 508, B30B 1500
Patent
active
060416858
ABSTRACT:
Adjustable apparatus (20, 20a) is provided, preferably in the form of an impact micrometer, which includes first and second interfitted bodies (22, 24, 22a, 24a) cooperatively defining therebetween an enclosed, constant volume internal fluid chamber (58, 58a). An adjuster (26,26a) is also provided which is connected to one of the first and second bodies (22, 24, 22a, 24a) and has an element (68, 68a) movable within the chamber (58, 58a). Preferably, the adjuster (26, 26a) is threadably coupled with the first body (22, 22a) through fine micrometer threading (36, 62, 36a, 62a). In use, the apparatus (20,20a be adjusted through rotation of the adjuster (26,26a) causing corresponding movement of the element (68, 68a) within the chamber (58, 58a); this in turn results in displacement of the fluid (59, 59a) to change the shape but not the volume of the chamber (58, 58a) and consequent movement of the first body (22, 22a) because of the incompressible nature of the fluid (59, 59a). When an impact load is experienced by the apparatus (20, 20a), such load is transmitted via an internal transmitting surface (44, 44a) and through the fluid (59, 59a). A substantially reduced portion of such load is transmitted to the threading (36, 62, 36a, 62a) because of the reduced load-transmitting surface area (72, 72a) of the element (68, 68a), as compared with the load-bearing surface presented by the second body (24, 24a).
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Preco Industries, Inc.
Rada Rinaldi I.
Vaughn T. Anthony
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