초록 ▼

An improved trolley for use on a track. The improved trolley is of a sandwich construction having a wear resistant interior and a pair of metal end plates. The wear resistant material is preferably plastic or other material designed to avoid damaging a track along which the trolley rides. The end pl

An improved trolley for use on a track. The improved trolley is of a sandwich construction having a wear resistant interior and a pair of metal end plates. The wear resistant material is preferably plastic or other material designed to avoid damaging a track along which the trolley rides. The end plates are preferably stainless steel and of a diameter greater than the diameter of the center wheel to prevent the trolley from becoming dislodged from a track. By providing a sandwich of long wearing and non brittle materials, the longevity of the trolley is increased and corrosion concerns associated with prior art devices is substantially alleviated.

대표청구항 ▼

[What is claimed is:] [1.](a) a center wheel having a first hole and a first diameter, wherein said center wheel is constructed of an abrasion resistant material;(b) a first end plate having a second hole and a second diameter, wherein said first end plate is constructed of a material less brittle t

[What is claimed is:] [1.](a) a center wheel having a first hole and a first diameter, wherein said center wheel is constructed of an abrasion resistant material;(b) a first end plate having a second hole and a second diameter, wherein said first end plate is constructed of a material less brittle than said abrasion resistant material;(c) a second end plate having a third hole and a third diameter;(d) wherein said second end plate is constructed of a less brittle material than said abrasion resistant material;(e) wherein said second diameter and said third diameter are greater than said first diameter;(f) wherein said first hole and said second hole are substantially aligned;(g) an axle extending through said first hole, said second hole, and said third hole; and(h) means securing said first end plate and second end plate to said center wheel.