"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
|7083372||Washer and fastening element|
A washer for a fastening element, having a circumferential flange, having an annular washer body provided with an opening, and having at least one holding web, wherein on the inner face of the opening there are disposed at least two claws, which jut radially into th...
A quick-operating locking fastener assembly for use in connecting members together, the fastener assembly comprising a fastener having a threaded shank, and a lock nut assembly receivable on the shank. The lock nut assembly includes a retainer having a pa...
|5098134||Pipe connection unit|
A connector for joining the ends of two pipes has a pair of half-sleeves, which fit around the pipe ends to form an inner sleeve. The inner sleeve has a tapered or conical outer surface, against which an outer sleeve presses. The outer sleeve is a single-...
|4671716||Locking screw for the adjustable connection of a hinge strap|
The locking screw for the adjustable connection of a hinge strap to a base plate of a hinge has an external thread, with which the locking screw is screwed into a corresponding threaded hole in the hinge flap. The end face of the bolt portion of the locki...