Abstract: A hair removal device having a plurality of springs mounted on a rotary head and arranged to open and close during rotation, to trap and pluck skin hair over a relatively wide area. In a preferred embodiment, the rotary head multi-spring design is provided as a hand-held, motor-powered depilatory device having a cup-like rotor formed with two concentric supports. A plurality of compression coil springs are mounted in in freely rotatable fashion on pins extending radially between the supports. The springs have normally open loops with spaces between them along the pin length. A cam is arranged proximate the pins such that when the rotary head rotates about a shaft, the pins slide radially between the supports in accordance with the cam shape. Radial movement of the pin forces a shoulder formed at one end against the end of the spring, compressing and closing its loops.

Abstract: A hair removal device having a plurality of tweezers mounted on a rotary head and arranged to open and close during rotation, to trap and pluck skin hair over a relatively wide area. In a preferred embodiment, the rotary head multi-tweezer design is provided as a hand-held, motor-powered depilatory device having a rotor formed with radially extending support channels. A plurality of tweezers are mounted on each support channel, each tweezer comprising a pivotable element and a fixed element, which are operated by a slidable actuator. As the rotary head rotates about a shaft, the slidable actuator moves in accordance with the shape of a cam in synchronous fashion, causing it to slide radially inward and outward along the support channel, and forcing the tweezers open and closed.

Abstract: The motor-powered depilatory device for removing skin hair is provided in a compact, efficient, hand-held unit, based on the operation of an axially rotatable hair-plucking element provided as a plurality of discs adjacently coupled in column form. By provision of a central spine comprising a pre-tensioned spring-metal wire, the discs are maintained adjacent one another under tension, while the column is bendable. When rotated axially at one end, the hair-plucking element transfers the rotation via rotational coupling of the adjacent discs in the column. Thus, even if the column is bent in an arched configuration, the rotational motion is transferred across its entire length. Preferably, the rotationally-coupled discs are made of relatively rigid plastic material, and are mechanically coupled by a set of tab-like projections on each disc surface, which engage matching recesses in adjacent discs.

Abstract: A motor-powered depilatory device for removing skin hair which is provided in a compact, efficient, hand-held unit, based on the operation of an axially rotatable hair-plucking element provided as a plurality of discs adjacently coupled in column form. By provision of a central spine comprising a pre-tensioned spring, the discs are maintained adjacent one another under tension, while the column is bendable. When rotated axially at one end, the hair-plucking element transfers the rotation via rotational coupling of the adjacent discs in the column. Thus, even if the column is bent in an arched configuration, the rotational motion is transferred across its entire length. Preferably, the rotationally-coupled discs are made of relatively rigid plastic material, and are mechanically coupled by a set of tab-like projections on each disc surface, which engage matching recesses in adjacent discs.

Abstract: An improved quick-disconnect hose coupling comprising a female coupling half having a ball valve designed with positive interlocking means for retention of a male coupling half in a receptacle formed therein. The ball valve is enclosed in a housing and is arranged to be pivotable therein about an axis, such that the male coupling half communicates with a bore hole in the other end of the ball valve. Pivoting movement of the ball valve provides a flow connection by bringing the bore hole into communication with a hose connector element retained in the other end of the housing, while interlocking pins contained in the ball valve mechanically engage the male coupling half in the receptacle. In one embodiment, a releasable latch engages a contoured slot in the housing for providing positively defined valve operating positions, such that the mechanical connection is completed prior to and separate from the flow connection.

Abstract: Each side of a door opening, e.g., a hinged door and a jamb, or two sliding doors, is provided with a protective hasp for a lock body and shackle of a lock. Each half of the hasp is so formed that, when mated, as on joining of the doors or closing of the doors, provisions are made for insertion of a lock body into the protective hasp, and insertion of a shackle through the hasp and the lock body to lock the closure.

Abstract: A safe comprising a box-like receptacle having a substantially rectangular cut-out opening in one of its walls adapted to be closed by a flat plate-like door. Said door comprising a substantially rectangular outer wall to which is attached a rectangular panel movable relative thereto. One dimension of the panel being longer than that of the outer wall and the opening. A lock on the door is used to slide the panel between a locked and unlocked position. In the unlocked position the panel extends beyond only one side of the outer wall of the door. In the locked position the panel extends beyond the opposite sides of the outer wall of the door. The opening in the receptacle is provided with means for holding the flat plate-like door flush with the outer surface of the box-like receptacle.

Abstract: A locking arrangement using an actuating gear mounted on a cylinder lock for turning a gear wheel having locking bolt means linked thereto for movement to locked and unlocked positions responsive to movement of the cylinder of the cylinder lock. A spring-biased latch normally in the locked position is further provided which can be moved to the unlocked position, when the locking bolt means is in the unlocked position either by separate handle or by the further movement of the cylinder.

Abstract: A dual pin tumbler lock and a key having two planar faces wherein the two planar faces of the key blade have similar concentric projections and depressions on both sides of a longitudinal axis for operating the lock, regardless of into which side of the dual lock the key is placed, and wherein each tumbler of the fixed part of the lock is made of two parts -- one part telescopically slidable within the other, both parts being urged by springs against a corresponding tumbler housed in the rotating cylinder which corresponding tumbler is likewise made of two telescopic parts.

Abstract: A locking arrangement for doors and the like comprising a key-operated cylinder lock mounted in the door or the like and extending at both surfaces, to be operated by a key, an actuating gear keyed to the cylinder of the lock, which by means of a gear wheel and curved links is adapted to move at least one elongated bolt linearly.