Abstract: A method of manufacturing a travelling wave parametric amplifier (TWPA) includes forming a superconducting junction on a substrate. Trenches are etched away through a metal surface and into a layer of dielectric material. The trenches define a plurality of fingers positioned in an interdigitated arrangement of capacitors defined by a metal and a dielectric material that remains from the etched away metal surface and the layer of dielectric material.

Abstract: Woven fabric of continuous, untwisted carbon yarn is impregnated with a modified cyanate ester resin or oligomer, preferably at least about 10% by weight of the combined weight of the cured resin and fabric. The cured fabric may be employed as a wet friction material suitable for use in transmission fluid couplings, and the like. The cured composite sheet can be backed with an adhesive film or liquid bonding paste for ease of bonding to one side of the metal portion of the transmission or clutch. Where thicker material is required, two or more cured composite sheets can be bonded together for applications such as transmissions.

Abstract: Woven fabric of continuous, untwisted carbon yarn is impregnated with a modified cyanate ester resin or oligomer, preferably at least about 10% by weight of the combined weight of the cured resin and fabric. The cured fabric may be employed as a wet friction material suitable for use in transmission fluid couplings, and the like. The cured composite sheet can be backed with an adhesive film or liquid bonding paste for ease of bonding to one side of the metal portion of the transmission or clutch. Where thicker material is required, two or more cured composite sheets can be bonded together for applications such as transmissions.

Abstract: The present invention provides a novel amorphous carbon-coated carbon fabric which comprises a single ply of a woven carbon fabric comprising interwoven strands of yarn. The yarn strands are formed of bundles of individual fibers and have amorphous carbon disposed between the individual fibers.The present invention also relates to a method of forming an amorphous carbon-coated carbon fabric. The method comprises the steps of (1) impregnating a woven carbon fabric with a resin; and (2) heating the resulting resin-impregnated carbon fabric to a temperature which is sufficient to char the resin to form a residue of amorphous carbon, thereby forming an amorphous carbon-coated carbon fabric material.

Abstract: Bale handling apparatus including a base portion, a bale storing portion, a bale moving portion, a bale distributing portion and a control portion; the base portion including a frame section, wheeled carriage supporting the frame section, a hitch member disposed at one end of the frame section; the bale storing portion including a bale supporting section disposed on the frame section, the bale supporting section extending from the rear end of the frame section remote from the hitch member toward but spaced from the hitch member, side rail sections extending upwardly from longitudinal edges of the bale supporting section; the bale moving portion including a transverse rear rail section disposed between the side rail sections, the rear rail section being movable from the rear end of the bale supporting section to the front end thereof; the bale distributing portion being disposed on the frame section between the hitch member and the bale storing portion, the bale distributing portion including a frame, bale rot

Abstract: Bale handling apparatus including a base portion, a bale moving portion, a bale distributing portion and a control portion; the base portion including a frame section, a wheeled carriage supporting the frame section, a hitch member disposed at one end of the frame section, a ramp section having a lower receiving end and an upper discharge end, the lower end of the ramp section being adjacent the end of the frame section remote from the hitch member, the ramp section extending upwardly from the end of the frame section toward the hitch member a distance more than one-half the length of the base portion, a closure located adjacent the lower end of the ramp section, a retainer associated with the longitudinal edges of the ramp section; the bale moving portion including conveying mechanism disposed longitudinally of the ramp section and between the longitudinal edges thereof; the bale distributing portion being disposed on the base portion adjacent the raised end of the ramp section, the bale distributing portion

Abstract: A capstan winch for pulling cable through conduit includes means for measuring the torque applied to the capstan and a take-up reel. The torque measuring means comprises an inner drum connected by a tension spring to a concentric outer drum. A patterned disc on the inner drum is visible through a window in the outer drum. The pattern indicates the relative position of the inner and outer drums, which is correlated to the applied torque.