A structural connection between adjacent ends of vertically superimposed precast columns in a structural framework of precast beams and columns. As in precast columns of the prior art sections of tubing are cast in the columns and extend longitudinally of them. However, the tubing at one end of the columns, rather than terminating at or just beyond the column end face, projects outwardly of the column a substantial distance, preferably through an opening formed through a beam at a beam-column in...

The disclosure relates to a connection for connecting at least two members to each other, the first member having at least one projection and the second member having at least one recess for accommodating the projection. A through-hole is provided in the first member, in which hole a self-threading screw may freely run and which merges into a groove disposed in and along the periphery of the projection. The screw is inserted, via the hole, into the groove and threads itself into the material of ...

Branch connection for a pipe, which connection comprises a saddle-shaped part provided with an internally screw-threaded tubular member integral with said part, and a tee piece provided with a screw thread which engages with the first-mentioned screw thread, a sealing member being disposed between the end of the tee piece nearest to the pipe and the external screw thread on said tee piece.

A high pressure, antigalling, thread interference pipe connection for use with well pipe includes pin and box members, the thread pitch lines of which are curved at the entrance of the box member and at the nose of the pin member so that sharp corners on the threads at the end of one member do not engage the threads of the other mating member and, also, so that pressure due to thread interference is built up in a smooth fashion over several threads rather than as a sharp pressure spike created b...

A rail attachment assembly for attaching an end of a sinuous spring band to a steel rail. A vertical or a horizontal flange of the rail is apertured or cut-out to facilitate passage of an anchor link for band element. The aperture or cut-out is elongated along one axis to permit pivotal movement of the link or band through a substantial arc without interference.

A fitting for connection between two locations in a transfer system whereby fluid or gaseous substances pass from one point to another through the fitting. The fitting comprises a hollow cylinder, a hollow stem with an enlarged bullet-shaped head and slidably extending through the cylinder, a passageway providing an escape path of least resistance to leaks occurring between the bullet-shaped head and corresponding fitting in a unit into which it is placed and an annular depression at one end of ...

A hose connection for pneumatic tools and other apparatus consists of a recess in the tool or the like having three annular shoulders at the inner ends of two concentric bores of different diameters. A stiffening member with an annular enlargement is fitted in the hose end portion and produces an annular enlargement on the hose. A sleeve fitting the outside of the hose presses the hose and the enlargement thereon against said shoulders.

A hose connection between a nipple and a hose which includes a sleeve having a plurality of axially extending finger portions mounted over the hose and a clamp with one or more folds adapted to be contracted for securely clamping the sleeve onto the hose and thus the hose onto the nipple.

A plurality of electrical leads retained in spaced parallel relation and passing through apertured guide blocks disposed at both ends of the leads. The conductor portions of the leads extend through the apertures for connection at one end to terminal lugs on a transformer housing. The opposite ends of the leads are stripped to permit the connection thereof to a circuit board.

A connection device having an intermediate member, a first connector, and a second connector. The first and second connectors are releasably retained to the intermediate member, and the first and second connectors are rotatable with respect to the intermediate member. The first and second connectors have a plurality of separate annular channels, and the intermediate member has a plurality of annular channels. The channels of the first and second connectors communicate with the channels of the in...