Jenkin Bells are a manufacturing company specializing in general signal devices. including signaling devices, warning bells, trolley bells, alarm bells and more. Jenkin Bells is registered trademark bells are the Supering and Flashering bells which come in vibrating, single stroke, pulsating, and low drain in AC or DC voltage. Most bells are UL and ULC approved. We also have a line of mechanical bells that can be used in the mining industry.