Hose clamps have been around for more than a century. The first patent for a screw-type band clamp was issued in 1896. Still, it was not until 1921, when a retired British naval commander started commercially manufacturing them under the Jubilee name, that they came into everyday use.
These clamps have an embossed band versus the slotted band of the traditionally manufactured hose clamps.
The slotted band will extrude the hose through the slots when tightened on the hose.
This cheese grater effect not only damages the hose material, it also hinders the clamp from smoothly riding over the hose when tightened. The interlocking of the hose with the band slots creates a reactive torque moment that needs to be overcome with a higher installation torque. In addition, the small contact surface between the screw thread and the band slots generates high friction, therefore even LESS torque is converted into band tension. The trapezoidal shape of the embossed band allows for more contact with the screw threads, therefore MORE torque is converted into band tension.
Embossed hose clamps have roll-formed band edges that minimize damage of thee hose material as well as the risk of injury to the installer.