Patents Assigned to Acrow (Engineers) Limited
  • Patent number: 4177968
    Abstract: An elongate soldier for concrete framework comprising two spaced parallel substantially U-section members interconnected back to back in such a manner as to leave between the members, at least one channel or passage extending along the length of the soldier from each of its ends.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: December 11, 1979
    Assignee: Acrow (Engineers) Limited
    Inventor: David Chapman
  • Patent number: 4122645
    Abstract: An attachment for a builder's prop, scaffold pole of the like comprising a stem screw-threaded along at least a portion of its length and provided at one end with a top bearer plate, an intermediate bearer plate being mounted on a tubular sleeve which is slidable along the stem and adjustably positionable thereon by means of a nut engaging the screw thread, means being provided for preventing rotation of the sleeve around the stem as the nut is rotated to alter the position of the sleeve along the length of the stem.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: October 31, 1978
    Assignee: Acrow (Engineers) Limited
    Inventor: Jack R. Tooley
  • Patent number: 4056254
    Abstract: A fitment for a prop, comprising a head plate, which is connected to the prop body of a standard builder's prop, or to a base plate which is intended for connection to a head plate of a standard prop, by a shank, the shank carrying a support tube and a shuttering element support member, the support tube being rotatable around the shank and the support tube or shank being provided with a screw thread engaging with a correspondingly screwed nut secured to, or forming part of, the shank or support tube respectively, the arrangement being such that rotation of the support tube around the shank raises or lowers the support tube relative to the head plate, the shuttering element support being positioned between the head plate and the support tube, the arrangement being such that the shuttering element support is supported by the support tube in one angular position of the support tube relative to the shank and, in a second angular or "strip" position thereof, being free to slide over the support tube.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: November 1, 1977
    Assignee: Acrow (Engineers) Limited
    Inventor: Jack Raymond Tooley
  • Patent number: D273334
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: April 3, 1984
    Assignee: Acrow (Engineers) Limited
    Inventor: George B. A. Young
  • Patent number: D273619
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: April 24, 1984
    Assignee: Acrow (Engineers) Limited
    Inventor: George B. A. Young
  • Patent number: D273711
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: May 1, 1984
    Assignee: Acrow (Engineers) Limited
    Inventor: George B. A. Young