Transverse Keys Patents (Class 295/19)
  • Patent number: 4723807
    Abstract: A wheel and track system wherein the track comprises a base and a pair of spaced apart upstanding sides is provided for guiding movement of a vehicle having four wheels over a controlled path and at least two of the wheels are mounted for rolling movement over the base and between the spaced apart upstanding sides and wherein a scuff plate is provided between the two wheels and the upstanding sides of the track so that there can be relative rotational movement between the scuff plates and the wheel and relative movement between the scuff plates and the upstanding sides of the track in the event of contact between the scuff plates and the upstanding sides of the track so as to minimize any tendency for the wheel to ride up the upstanding side and also to protect the upstanding side and the wheel from damage.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: February 9, 1988
    Assignee: Portec, Inc.
    Inventors: David M. Pruett, Robert D. Brown
  • Patent number: 4212491
    Abstract: A resilient wheel is provided comprising a hub and web having a rim mated to and resiliently bonded to the web with an elastomeric adhesive. Depending on the application the outer circumference of the rim may have a flange machined into it so that it serves as the tire for the wheel or machined smooth to accept a separate tire. To prevent the rim from shifting relative to the web as the elastomeric adhesive ages, a plurality of locking pins are inserted through the rim and bond line into the web and bonded into place. The rim is thus effectively prevented from shifting even if the adhesive substantially or even totally disbonds from the mated parts. Several variants of these locking pins are possible to achieve improved economy for maintenance purposes or improved longevity of the wheel.
    Type: Grant
    Filed: October 2, 1978
    Date of Patent: July 15, 1980
    Assignee: The Boeing Company
    Inventor: Robert L. Pinckney
  • Patent number: 4183572
    Abstract: The present noise damping apparatus is especially intended for damping the noise caused by wheels running on rails. For this purpose there is provided a noise screen connected to at least one surface of the rail wheel in a force transmitting, yet removable manner. The noise screen comprises vibration damping reed members. This screen prevents noise generated by the wheel proper from radiating outwardly and it also acts as a noise absorber for the impact noise propagating in the wheel and other solid bodies.
    Type: Grant
    Filed: November 10, 1977
    Date of Patent: January 15, 1980
    Assignee: Messerschmitt-Bolkow-Blohm GmbH
    Inventors: Helmut Albrecht, Oskar Bschorr, Helmut Hassel