Abstract: In an elastic cylindrical hose clamp consisting of a rectangular and uniformally thick resilient plate having a first gripping lug protruding centrally from one side of the plate and two gripping lugs protruding from the opposite side of the plate at each their own side of the first lug, said lugs at their free ends having radially outwards protruding tongues to be used when expanding the clamp, the tongue of the first lug being so designed as to engage and travel along the track defined between said second lugs, the amendment that said three lugs are designed broader adjacent to the rectangular plate than at their free ends.

Abstract: The invention is a tube clamp which is used to connect a first pipe to another pipe. The invention can be used, for example, to add a pipe extension to the exhaust pipe used on a car. The tube clamp is made from a plate having a first and second flat portion, each having a hole wherein said holes are equal. The holes are connected by a slot and the plate has first and second flanges surrounding and remote from the hole in the first and second portions of the plate. The plate is transversely bent between the first and second flat portion to a degree to form a connector passage, the plate being bent so that the first and second flat portions are in contact with each other and said holes are substantially coaxial with the first and second flanges directed away from each other. Connector means selected from the group of rivets or welds connects the first and second flat portions. A connector means going through a connector passage connects the pipe flange.