Abstract: A tearable and disposable retainer for temporarily holding and positioning an apertured element such as a washer in place along the length of an elongated, generally cylindrical part. The retainer of the present invention includes a singular, generally planar member made from a manually tearable material. The retainer member defines a generally centralized hole or opening with a series of cuts or slits radially extending therefrom. A series of angularly shaped segments are defined between the slits, with each angularly shaped segment having a formed arcuate edge at a distal end thereof for frictionally engaging the outer cylindrical surface of the part over which the washer is loosely fitted.

Abstract: A staple for maintaining netting in an installed position on a ground surface, which netting is used to enhance the growing of turf or sod. The staple has a pointed end and a medial portion extending to a distant end. The distant end has a head portion which is of a width that is greater than the width of the pointed end and the medial portion and is likewise wider that the smallest distance defining the opening in the netting. A method and apparatus for installing the staple is also disclosed.

Abstract: A threaded paper tube includes a multiple paper tube having an inner tube with spiral ridges on its outer surface, and an outer tube and a tightening robe each having grooves on their inner surfaces which are in the same pitch as the spiral ridges. The total length of the threaded paper tube may be changed by adjusting the screwing extent between the inner and outer tubes, and the total length may then be fixed by tightening the tightening tube against the outer tube. The ridges and grooves are provided as steps formed on the inner tube's outer surface, the outer tube's inner surface and the tightening tube's inner surface using a ribbon-like shaped paper material which is adhered and fixed at the same pitch on the surfaces of the tubes.