An apparatus for attaching fiberglass handles to tools and for making other fiberglass connections. Four gear wheels are intermeshed for simultaneous rotation 90.degree. out of phase with each other. Cup members connected to the gear wheels engage the upper ends of four tool handles. As the gear wheels rotate, the cup members force the handles downwardly into the eye openings of tool heads. Downward movement of the handles becomes progressively slower along the final portion of the insertion so ...

The present invention provides a narrow orthopedic casting tape which can be handled in longer lengths suitable for economical production of coated fabric products. The narrow casting tape of the present invention is knitted as a wide fiberglass fabric with at least one removable connecting yarn in the length (i.e., warp) direction of the fabric which acts to connect two narrower strips of fiberglass fabric. The removable connecting yarn is subsequently removed from the fabric by a heat treatmen...

A generally horizontal log of fiberglass honeycomb material defining side-by-side upstanding adjacent cells substantially throughout the log is provided and the log includes a hard outer covering enclosing the log on all sides. The covering is bonded to the opposing side surfaces of the log and the opposite ends of the log include vertical bores therethrough having thrust sleeves of substantially the same length tightly received in and extending through the vertical bores. The hard outer coverin...

A fan assembly including a fan hub engaged with a driving means for rotation, a streamlined hub cover and a plurality of fan blades attached to the fan hub. The fan blades have an exterior fiberglass skin, filled with high-density polyurethane foam, and a reinforcing steel spar positioned within the exterior skin. The spar is fabricated in a tapered "H" cross section to provide maximum strength without impairing the efficiency of an optimum airfoil.

A closure assembly is provided assembled from framing sections being fiberglass pultrusions having thin walls, sufficiently thin so as to require reinforcing of the pultrusion proximate the ends and at predetermined positions to allow for (i)joining adjacent pultrusions together and (ii) assembling hardware to the pultrusion, (iii) mounting the pultrusions when assembled in an opening.

Fiberglass filament hulls are cut to form fiberglass staple fibers with an apparatus comprising a cutting roller with a plurality of equally spaced, circular, diamond coated cutting blades separated by circular spacers having a diameter less than the diameter of the cutting blades; a circumferentially grooved pressure roller positioned parallel to the cutting roller and forming a nip therewith, with the periphery of the blades extending in non-engaging relation into the grooves; and a conveyor f...

Fiberglass filaments are cut into fiberglass staple fibers having a maximum predetermined length with an apparatus comprising a cutter to cut the filaments into fiber segments; a fiber aligner to align the fiber segments in a given direction; and a chopper for cutting said fiber segments transverse to the given direction at spaced intervals having a spacing equal to the predetermined length.

A tool for putting a male taper on the end of a length of pipe includes a supporting member which rotatably carries an expandable collet and pivotally carries a cutter blade assembly having a cutter blade thereof extending directly above the expandable collet. A combination handle and blade advancer is utilized to rotate the cutter blade relative to a length of pipe received over the collet and at preselected intervals to advance the blade onto the outer wall of the pipe to obtain the desired an...

A laminated fiberglass fabric composition is prepared by laminating a non-woven fabric to a knitted or woven fiberglass fabric with a plastisol laminating adhesive. Heat compressing the assembled materials envelops the individual fiberglass yarns with the non-woven fabric producing a fabric composition which is highly resistant to damage caused by severe twisting or flexing forces applied to the fabric. The use of a flame resistant laminating adhesive imparts flame resistant to these fabric comp...

An improved process for the preparation of a polyester resin that can be solubilized in water as formed, and, when partially cured is insoluble in, but permeable to, polymerizable monomers such as styrene which comprises admixing a mixture of polycarboxyl-affording substances with a polyhydroxyl-affording substance and heating the mixture in the temperature range of 300.degree.-450.degree.F. until a thin sample of the material cures at 392.degree.F. in from about 10 to about 40 seconds. The meth...