Abstract: A carrier is disclosed for supporting an optical blank in the chuck of a lathe, for machining the optical blank into a lens. The carrier has a substantially cylindrical body formed of a machinable material. The cylindrical body has an opening at a first end thereof through which an optical blank can be inserted, and a retaining portion for securing such optical blank in place. In a preferred embodiment, the retaining portion is an annular shoulder extending inwardly at a second end of the cylindrical body.

Abstract: A screen printing apparatus is provided, having a table on which the blank to be printed may be placed, and with the screen being brought into overlying relation to the blank for engagement of the screen by a squeegee for forcing through the screen, ink that has been applied to the screen, onto the work, with the squeegee generally downwardly pressing the screen a predetermined amount, to engagement with the work, as the squeegee traverses the screen from one end to the other. The screen is pivotally mounted at one end, and the other end is upwardly liftable to peel-off the screen from the work, as the squeegee traverses, so that those portions of the screen through which ink has already been applied to the work may be physically removed from the work to prevent smearing of ink on the work, as well as to prevent distortion. The upward movement of the screen away from the work is synchronized with the traversal of the squeegee across the screen.

Abstract: A car top carrier assembly which is characterized by a light weight carrier container with an overall rectangular solid configuration, having its edges and corners radiused between all intersections of planar surfaces. The container has no internal frame, but rather the frame itself is comprised of a horizontal deck member, vertical corner support members, and horizontal edge supports, with the planar top and side portions being simple rectangular pieces of sheet material which are flangedly connected onto the corner and edge supports to define the overall container. The car top carrier is mounted upon a car top through a pair of contracting support tubes, which exert a contractive force proximate the edges of a car top, while inherently locating the superposed container in a fixed position as a consequence of the engaging step.

Abstract: An adjustable car top carrier support which is operable for use on a gutterless car top including ledges at its opposite sides. In one embodiment, the carrier support is significantly characterized by having a clutch upon a crankshaft, for limiting the amount of the contractive force which may be applied by the carrier upon the car top. The adjustable car top carrier is further characterized by car top engaging combination which includes a pivotable foot pad, together with a ledge hook for ensuring that the contractive forces of the carrier are inserted into the vicinity of the opposite ledges of a car top. The present invention is particularly useful on a gutterless car top, though may be employed upon any form of a vehicle roof member that conventionally includes a ledge on opposite sides thereof.