Supported On Rail Type Side Forms Patents (Class 404/119)
  • Patent number: 4115976
    Abstract: A screed support and method for screeding cement comprises digging a plurality of arranged holes in the bed surface of the area to be cemented. Unsolidified cement is poured into each of the holes, a hollow sleeve is inserted into the wet cement and positioned therein in a substantially vertical orientation, and the cement is cured to a solidified state. A rail support member having a threaded rod and a mating, adjustable collar, is telescopically inserted into each of the sleeves. Screed support rails are connected with each rod, and the elevation and inclination of the same is adjusted in infinitely small increments by manipulating each collar in accordance with the desired, predetermined requirements. Additional unsolidified cement is then poured between the rails, and a self-propelled screeding machine is passed thereover to smoothen and level the uneven free surface of the additional cement.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: September 26, 1978
    Assignee: John Rohrer Contracting Company
    Inventor: Walter J. Rohrer
  • Patent number: 4030873
    Abstract: A lightweight and portable vibrating screed is provided with an elongate open structure frame which may be made up of a plurality of interconnected frame units. A shaft is supported for rotation in spaced bearings along the frame and extends outwardly beyond the bearings at each end of the frame. Variable speed drive means is provided for rotating the shaft at a sufficient speed to cause deflection of the portions of the shaft between the bearings and the portions of the shaft extending outwardly beyond the bearings to impart uniform vibrations throughout the length of the screed.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: June 21, 1977
    Assignee: Lewis T. Morrison
    Inventor: Donald R. Morrison