摘要:
A pull-chain switch system comprising several components in combination. First provided is a pull-chain switch with a spring of a first stiffness. Next provided is a switch subassembly having mounting portion and a pivoting member and a spring having a second stiffness. The second stiffness is greater than the first stiffness. Lastly provided is a means for coupling the subassembly to the pull-chain switch.
摘要:
A ceiling fan control switch box, which includes a casing, a pull switch received inside the casing and having a hollow screw rod extended out of a wire hole on the casing and fixed in place by a screw nut, an angle pipe having raised ribs on the inside fitting around the screw nut to stop water from entering the wire hole, a fan motor forward/backward switch received inside the casing and having a switching lever extended out of an opening on the casing, and a flexible water sealing cap fastened to the casing and mounted around the switching lever to stop water from entering the casing through the opening without affecting the switching operation of the switching lever.
摘要:
A safety switch mechanism for use in connection with a recoil starter using a rope or cable. Such a starter is used on the usual internal combustion engine mounted on a vehicle such as a tractor which carries with it a powered tool such as a grass cutting unit. The mechanism is particularly adapted for safety systems wherein the engine is short-circuited so that the engine can not be started by pulling the rope or cable unless both the clutch of the tractor and the clutch of the powered tool are disengaged. This safety switch mechanism has a unique construction enabling it to be locked in open position so that the switch mechanism is not inadvertently opened by vibration or other means after the engine is started and the tractor and powered tool are being used. This is an abstract only of the specific illustration of the invention given by way of example, and is not to be used in the interpretation of the claims nor as a limitation on the scope of the invention.
摘要:
A switching device comprising an electrically insulating movable element included in an insulating housing together with a spring member, an insulating stationary element inserted in an opening of the housing so that it normally contacts the movable element, a pair of contact terminals provided on the stationary element to be brought into contact with a contact on the movable element, and an outer cable incorporated with an inner cable, running through the movable element and the stationary element, for acting on the movable element from the stationary-element side. The insulating stationary element is located in a large diameter portion of the housing but abuts a shoulder forming the interface between the large diameter portion and a smaller diameter portion.
摘要:
A switch for closing any low voltage electric circuit is disclosed. The invention resides in the provision of an elongated, flexible, dielectric element having a conductive wire, a terminal at either end, means at the median to attach it to a support member such as a wall, and a shaped nonconductive pull cord secured to its ends, and arranged to bring the terminals together to make electrical contact to close the circuit when tension is put on the pull cord.