Abstract: A hand held appliance including a handle, a head part for use in performing a treatment on a body of a user of the appliance, an electrically operable vibration generating device, and a control device to control operation of the vibration generating device. The control device is proximity or touch sensitive and has a sensor element located at the head part. The vibration generating device is actuated in response to a user of the appliance moving the head part into close proximity to, or into contact with, the body for treating the body.

Abstract: The invention relates to a hand held electrical appliance having a handle and a head part to be brought into contact with the body of the user, such as a toothbrush with a brush head or a safety razor with a head part in the form of a blade unit, including an electrically operable vibration generating device, for example an electric motor and eccentric weight, and a control device for controlling operation of the vibration generating device. The control device is proximity or touch sensitive and includes a sensor element, such as an electrode formed by a blade of the blade unit, so that the vibration generating device is actuated in response to a person using the appliance and moving the blade unit (or other head part) into close proximity to or into contact with the body area to be treated.

Abstract: The invention relates to a hand held electrical appliance having a handle and a head part to be brought into contact with the body of the user, such as a toothbrush with a brush head or a safety razor with a head part in the form of a blade unit, including an electrically operable vibration generating device, for example an electric motor and eccentric weight, and a control device for controlling operation of the vibration generating device. The control device is proximity or touch sensitive and includes a sensor element, such as an electrode formed by a blade of the blade unit, so that the vibration generating device is actuated in response to a person using the appliance and moving the blade unit (or other head part) into close proximity to or into contact with the body area to be treated.

Abstract: A primer for an explosive charge which is to be initiated by a fuse cord is sensitized by a loose charge of a high explosive, this high explosive being contained in a rigid, impermeable container which is so shaped that at least partially surrounds the fuse cord. The container is of plastics or metal and preferably comprises at least one elongated concave surface which mates with and is supported by at least one metal rod which protrudes from the base of a mold in which the primer will be cast and which establishes a channel for a fusecord.The primers of this invention have more sensitivity and robustness than known primers, and wire fusecords of lower charge weight.

Abstract: A primer for an explosive charge which is to be initiated by a fuse cord is sensitized by a loose charge of a high explosive, this high explosive being contained in a rigid, impermeable container which is so shaped that it at least partially surrounds the fuse cord. The container is of plastics or metal and preferably comprises at least one elongated concave surface which mates with and is supported by at least one metal rod which protrudes from the base of a mould in which the primer will be cast and which establishes a channel for a fusecord.The primers of this invention have more sensitivity and robustness than known primers, and require fusecords of lower charge weight.