| 254 / | HD | IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE |
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| 264 | DF | APPARATUS FOR HAULING OR HOISTING LOAD, INCLUDING DRIVEN DEVICE WHICH CONTACTS AND PULLS ON CABLE {4} |
| 266 | DF | .~ Device includes rotatably driven, cable contacting drum {34} |
| 278 | DF | .~.~ Plural drums or drum with plural distinct sections {7} |
| 294 |  | .~.~.~ Having common drive source or mechanically interlinked drive trains {10} |
| 295 | DF | .~.~.~.~> Including intermeshing gears in drive {7} |
| 311 | DF | .~.~.~.~> Including sprocket wheel and chain in drive |
| 312 | DF | .~.~.~.~> Including power transmitting pulley and rope or belt either in drive or in cable return means |
| 313 | DF | .~.~.~.~> Including contacting friction wheels having noncollinear axes of rotation in drive |
| 314 | DF | .~.~.~.~> Including expansible, noncombustible, fluid motor in drive (e.g., air, steam) |
| 315 | DF | .~.~.~.~> Including noncompressible fluid motor or pump in drive |
| 316 | DF | .~.~.~.~> Including electric motor in drive |
| 317 | DF | .~.~.~.~> Including clutch mechanism in drive having coaxial, rotatable, relatively shiftable axially, power transmitting components {2} |
| 320 | DF | .~.~.~.~> Including ratchet wheel and interengaging driving pawl in drive |
| 321 | DF | .~.~.~.~> Including means for preventing or retarding rotation of one or more drums in at least one direction {1} |