A device for coupling two shaft members of differing diameters. The device includes a barrel and a reaction mass. The barrel is hollow and includes an outside coupler formed by the exterior surface of an upper portion of the barrel, an inside coupler formed by the inside surface of the barrel, and a reaction mass interface formed by the exterior surface of a lower portion of the barrel. The outside coupler is sized to fit inside a hollow end of the first shaft member. The inside coupler is sized...

A spacer coupler for ganging together two or more wall outlets by coupling the outlets together in a spaced manner. The outlets are fastened to the spacer coupler by spear connectors on the spacer coupler which are inserted into complimentary holes in the wall outlets. The spacer coupler can be used with existing communication cable receptacles and face plates to form a pleasing and easily accomplished ganging of the receptacles.

A fusion welding socket (18) for coupling together plastic pipes, is adapted to receive the pipe parts to be coupled together with a tight fit. The diameter of the ends (19) of the socket is greater than the diameter of the socket along an intermediate part (20) and the diameter at the ends is adapted to receive with a tight fit an outer pipe (1) and the diameter of the intermediate part is adapted to receive with a tight fit an inner pipe (2) of a double-pipe conduit which includes two coaxial ...

An auger coupler for a folding grain conveyor is disclosed which operates to connect an upper auger to a lower auger. A drive member adapted to be connected to the lower auger include a pilot shaft designed to help align the drive member with the driven member and an annular thrust bearing surface surrounding the pilot shaft. Spaced outwardly from the thrust bearing surface is an annular row of drive teeth. The drive teeth project axially upwardly from an annular base surface which is parallel t...

A coupler for connecting first and second shafts has a male cross member pinned to the first shaft and a female body member clamped onto the second shaft. The female body member has a housing with internal splines interlocking with mating external splines on the cross member. A longitudinally split clamp has a sill portion integral with the female body member and a half clamp member engageable with the sill portion. The split clamp has a single locking bolt which reduces the time required for in...

A means for attaching a camcorder to a telescope which allows the camcorder to be moved with the telescope to follow celestial bodies and record events such as eclipses. The means provides a rigid mounting bar, an adjustable sliding connector mounted on the bar, a bracket to align a camcorder at an angle to the optical tube and an adjustment rail attached to the bracket. The adjustment rail allows the camcorder to be aligned with the eyepiece of the telescope and to be withdrawn to change the ey...

A directional coupler including a substrate having a length and containing a material that exhibits electrooptic properties, the substrate being divided into a plurality of reversed polarization domains along a direction of length. At least two optical waveguides are formed in the substrate in the direction of length thereof and substantially parallel to a main surface thereof. An electrode is disposed above a portion of each optical waveguide for modulating light waves propagating through the w...

First and second microstriplines disposed substantially in parallel to each other and coupled with each other are formed spirally in a substantially quadrangular shape with the first microstripline being disposed inside. The space between the first and second microstriplines is set at least partly wider than the space between the adjacent turns of the pair of first and second microstriplines.

A subterranean coupler for slidably receiving a pipe therethrough and for coupling the pipe to a subterranean vessel. The coupler is mountable to a reinforcing grid prior to the coupler and reinforcing grid being cast in a concrete wall of the subterranean vessel. The coupler includes a longitudinally-extending axis and a cylindrical wall defined about the axis, the wall having an inner surface, an outer surface, and first and second ends. The coupler further includes a plurality of radially-ext...

The invention relates to an antenna coupler (1) for testing mobile transmitters and/or receivers, in particular mobile telephones (2). Said coupler has a receiving element (4) and/or a bearing surface (20) for the mobile transmitter and/or receiver and at least one antenna element (5, 25, 35). According to the invention, the antenna element (5, 25, 35) is configured as a loop that is essentially closed in spatial terms.