Abstract: Glass sheet forming apparatus (12) and a glass sheet forming method utilize a mold (20) having a curved forming face (22) with holes (26) in which a vacuum is drawn to form a glass sheet. A vacuum distributor (48) of the apparatus distributes a vacuum impulse of at least 0.1 atmospheres of vacuum from a valved vacuum reservoir (52) through a plurality of tubes (58) to a limited number of the holes (26) to provide additional forming of the glass sheet. The vacuum impulse distributor (48) is located within a vacuum chamber of the mold (20) that draws the vacuum by a gas jet pump in the holes (26) to which the vacuum impulse is not distributed.

Abstract: A glass sheet pressing and quenching apparatus including an open center ring having a shape generally corresponding to the shape of the glass sheet and a top support surface extending generally horizontally and conforming to the desired surface contour of the glass sheet. A plurality of flat insulating platelets are removably mounted on the top support surface to define an accurate glass contact surface having low thermal conductivity. The insulating platelets may include a plurality of horizontally inwardly spaced projections with passageways therebetween for communicating quench air therethrough. The ring is mounted on a support frame via a plurality of leveling assemblies, each of which include a mounting plate secured to the ring and adapted to receive a threaded connector having a spherical end portion which is mounted for limited movement within a generally spherical mounting receptacle secured to the support frame.

Abstract: A device for extracting energy from sea waves by the motion of a submerged cylinder held normal to the direction of motion of the waves by tie members at each end of the cylinder. The tie members at their other respective ends are moored to the sea bed. Changes in the load on the tie members are arranged to turn in one direction a drum drivably connected to a vane pump. A spring, or a counterweight acting on a cam-shaped pulley, is arranged to apply a biasing load to the drum in the other direction so as to produce an oscillatory movement of the drum from changes in load on the tie members and drive the pump. A hydraulic motor connected to an electric generator is driven by the pump.The drum may be situated at the moorings on the sea bed, or at the cylinder.