Abstract: A razor has a handle which holds a pair of double-edged blades enclosed by a cartridge member, by means of a fexible yoke having cartridge engaging hooks on each of its yoke arms. Dimple bearing means located on each side of the cartridge keep the yoke hooks in engagement with the cartridge. A central rod holding the yoke bears against an upturned end of a razor handle and acts to spread the yoke arms in loading and unloading the cartridge onto the yoke hooks. The rod holds the yoke and cartridge assembly in either a rigid posture or with allowance for a free float of the cartridge on the pivot bearings of the hooks in the dimples by means of a tooth on the rod in ratchet-like engagement with various slots formed in the handle adjacent the path of travel of the push rod to and from contact with the upturned end of the razor body.

Abstract: A sofa bed has a multi-section bed assembly which is partly storable in the sofa back to become the back cushion support for the sofa and is partly storable sandwich-like in the seat cavity of the sofa to be the seat cushion support for the sofa thereby allowing the bottom of the sofa to be reduced in depth, back to front, permitting the structure to be moved through narrow doorways and the like not heretofore possible in convertible furniture.

Abstract: The following specification discloses an improvement in vertical axis wind machines having upstanding blades. The blades are attached to a rotatable ring which support the blades at an angle of forty five degrees to the horizontal plane of the ring. Associated with the wind machine is a wind velocity sensing device producing electrical signals responsive to the wind velocity. Means is provided the blades attached to the ring to adjust the angle of attack of the blades in response to the magnitude of the signals.

Abstract: A silencer consists of concentric spaced apart longitudinally extending shells connecting two bulkheads, each having an outer imperforate face, the space between the faces of each shell containing noise absorbing material such as rock wool. Each shell has a longitudinally extending duct to enable the gases to escape, the duct in the inner shell being offset in relation to the duct in the next shell; the inner shell is connected to the inlet pipe and the gases escape via the duct of the inner shell, then through the space separating the two shells and finally through the duct of the next shell.

Abstract: The following specification discloses a chesterfield that is convertible into a double bed without a requirement for changing any part of the chesterfield frame and which has the normal seat depth for sitting comfort. The bed is stored beneath the seat cushions and is foldable inwardly lengthwise of the chesterfield with part of the folded bed storable beneath the back rail or deck of the seat. The bed is folded lengthwise and consists of a pair of clam-shell appearing tube members pivotably attached to a pair of channel members with link fabric for holding a mattress stretched between the tubes and a mid-cross tube. The channels and tubes form a `U` shape when folded down into the bottom of the chesterfield with the opening of the `U` facing the back of the chesterfield. The bed frame is held to the lower side frames of the chesterfield by a bearing bracket through a chain of links connected together in pivotable foldable relation.

Abstract: A sprinkler for watering an area having a specific shape using water subject to an intermittent and regular variation in pressure introduced against a patterned plate positioned in the base of the sprinkler. The plate is situated adjacent to a slotted opening in the lower solid side of a hollow head moveable under water pressure within a cavity formed between the base and a cap of the sprinkler. A nozzle is attached to the upper end of the head to distribute the water passing the restricting window and segment of pattern disposed in its path in the base. Springs are associated with the head to provide a torque to the sprinkler head as the head rises in the cavity under pressure of the water on the lower side of the head. A gear and ratchet is provided on the head to prevent the head from returning to the first position upon reduction of the water pressure and resultant reaction of the springs to return the head to its position of rest within the cavity.

Abstract: The following specification discloses a means of converting a head of water from a lake into electric power by directing a flow of water onto a turbine disposed in a crib built below the floor of the lake and having intermittent exploding gas means to create a vacuum for drawing the fallen water from below the turbine back into the lake.

Abstract: The accompanying specification discloses a mine cage safety device comprising at least one friction wheel adapted to roll freely over the shaft wall or mine cage guide timber when the cage is lifted upwards and downwards in the mine shaft. When the cage accelerates past a critical level as in a free fall the friction wheel actuates a hydraulic trigger means that in turn sets off an explosive charge which instantaneously drives braking means against the timber guides to thereby arrest the free fall of the mine cage.