Abstract: A device for measuring shear properties of asphalt mixtures includes a machine for testing the material strength, equipped with an operational frame, fixing elements and driving mechanism, the machine including a steel socket equipped at at least one of a bottom and a top edge thereof with an inner flange to accommodate a testing specimen, the testing specimen having a central open hole, and a steel insert adapted to be inserted into the open hole in the testing specimen, the steel insert being equipped with a rim at at least one of an end thereof at the top edge of the steel socket and at end thereof at the bottom of the steel socket, while a size of a clearance between the inner flange and the rim being between 5 to 60 mm, and the steel insert being equipped with elements for fixing to clamping elements of the device, and measuring probes being connected to the steel insert.

Abstract: A walker for use by those with limited mobility. The walker includes a seat assembly that assists the user in rising from a seated position or sitting from a standing position. The seat assembly is mounted in a frame and includes at least one gas spring mounted between the seat assembly and the frame that deflects the seat assembly while the user is rising from the seat or dampens the deflection of the seat when the user is sitting. The walker may include other capabilities and attachments, including a braking system and mountings for ancillary equipment.

Abstract: A walker for use by those with limited mobility. The walker includes a seat assembly that assists the user in rising from a seated position or sitting from a standing position. The seat assembly is mounted in a frame and includes at least one gas spring mounted between the seat assembly and the frame that deflects the seat assembly while the user is rising from the seat or dampens the deflection of the seat when the user is sitting. The walker may include other capabilities and attachments, including a braking system and mountings for ancillary equipment.