(under the class definition) Apparatus including means for transmitting a force to or from a working member, said means comprising a plurality of mechanically interconnected members which are movable relative to each other, one of said members being connected for movement with the working member.
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13.7, for a working member having a relatively movable power transmission element and means adjusting or limiting the motion of said transmission element to vary the working member stroke.
68+, for a plurality of relatively moving working members provided with mechanical motion converting means connecting said working members to a common rotary shaft.
76, for a plurality of relatively movable working members interconnected by a linkage having relatively movable members.
136+, for a linkage or transmission arrangement associated with an expansible chamber device and in which such linkage or transmission includes a gear, thread or spline rigid with working member.
137, for linkage or transmission means associated with an expansible chamber device, including a flexible element secured to the working member. 138, for an expansible chamber device provided with a working member having a pair of spaced end faces and a linkage or transmission means engaging the working member at a point intermediate the spaced end faces.
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74, Machine Element or Mechanism, appropriate subclasses for a mechanical movement or mechanism of general utility. Class 74 takes a nominally claimed expansible chamber device combined with a power transmitting linkage or transmission. (For a more detailed statement of the line between Class 74 and Class 92, see References to Other Classes of the class definition).
