Abstract: A femoral sizing guide of the type in which a sizing guide block is located at the distal femur utilizing locator feet for engaging the posterior condyles to assist in the location of a femoral cutting guide of suitable size in the implant of a femoral knee prosthesis includes a coupling arrangement by which locator feet of selected size are independently coupled interoperatively with the sizing guide block for enabling a surgeon to compensate for conditions encountered at the implant site, during the implant procedure, and attain a stable placement of the femoral sizing guide at the distal femur for accurate sizing and location of the femoral knee prosthesis.

Abstract: Apparatus for sequentially turning pages of a book or the like includes a turned page holder having a first part movable up and down, and a second part carried by the first part that swings over the turning pages during holder displacement between up and down position.

Abstract: Apparatus for sequentially turning stacked pages includes several actuator driven elements. These include a pusher to frictionally push an exposed page in a turn direction and resulting in upward bulging of the page; a foot to clamp a page to be turned to facilitate development of the bulge; at least one flipper arm to swing under the bulge and flip the page over; and a turned page holder that temporarily lifts to allow a turning page to be received on a stack of turned pages, for subsequent clamping by the holder. The actuator includes a linearly moveable member that is motor driven and that actuates the elements. Also provided are a holder for pages to be turned; a string to hold down groups of turned pages, and a receptacle for a book (as for example a paper back book), the receptacle being capable of inversion to allow a bed-ridden reader to use the apparatus with no effort spent in turning pages.

Abstract: An automatic page-turning apparatus for books, magazines and the like comprising a transparent housing having a hinged top to allow a book to be positioned in the housing and seen through the top thereof. Disposed within the housing is a slip-clutch assembly attached to an operating knob located on the exterior of the housing. A monofilament cable is interconnected to the slip-clutch assembly, and is arranged to be operably supported by a plurality of pullies, the cable including a transversely attached page-turning band, which traverses over the pages of the book to engage each succeeding page to be turned. A page-separating wheel is operably synchronized with the movement of the page turning-band to allow the band to engage the page to be turned. When the book is being read, the page-turning band acts as a page hold-down means for one side, while a separate hold-down band is used on the opposite side of the book.

Abstract: A stationary cylinder is jacketed to provide a first passage for a first heat exchange medium and forms a chamber for throughflow of a product to be heated or cooled. The cylinder contains a coaxial rotor comprising a shaft having a cylindrical outer surface and forming a second passage for a second heat exchange medium, whereby said stationary cylinder and said shaft surface are heated or cooled by said media. Each of a plurality of tubes has its opposite ends secured to the shaft and has an intermediate portion extending outside the shaft in spaced relation to its cylindrical outer surface. The second heat exchange medium is fed through one end portion of the shaft to adjacent ends of said second passage and said tubes and is discharged from the opposite ends thereof through the other end portion of the shaft. Scraper means protrude from the rotor between adjacent tubes and are operable to sweep the inner surface of the jacketed cylinder.