Abstract: A mannequin for use as a tool in demonstrating a variety of hair styling techniques such as hair cutting, permanent waving, blending, texturizing and the like includes a simulated human head having a skull, scalp, and human hair attached to the scalp. The hair is of a length and thickness approximating that of an individual of a prescribed sex, size, and type. In a preferred embodiment as used for demonstrating hair cutting techniques, a plurality of variously colored line diagrams are applied to the hair to defined a plurality of cutting lines to be followed to accomplish a plurality of prescribed hair styles.

Abstract: A rodless linear drive cylinder includes a cylindrical hollow tube, sealed at the ends and containing a pneumatically driven piston. The drive cylinder is so mounted to extend across the ink fountain of a printing machine and includes an ink agitator suspended therefrom into the ink fountain. The agitator is magnetically coupled to the drive piston of the linear drive cylinder.

Abstract: Method and apparatus for automatically and sequentially transferring and inverting preformed pocket-like fabric blanks from a first sewing station where a first seam is applied to an outturned marginal edge to a second sewing station where a second parallel seam is applied to the inturned marginal edge. A first pickup mechanism identifies, lifts, and transfers multiple ply fabric work pieces from the surface of a work table onto a spreading jaw mechanism by clamping on the upper ply or plies of the work piece with a pair of gripping fingers. The first mechanism is inserted between the plies and operable to grip the upper ply of the work piece, even where the confronting, unseamed, marginal edges of the work piece are not aligned. A second spreading jaw mechanism includes a pair of vertically spreadable jaws onto which the fabric blank is placed. A third inverting mechanism slides between the spread jaws to invert the work piece onto a split mandrel.

Abstract: Stacks of fabric plies are sequentially positioned by a carousel feeding apparatus in an unloading position where the uppermost ply in a stack, so positioned, is individually and sequentially separated from the stack, and an edge thereof presented between the jaws of a gripping device. Once the gripping device is satisfied that one and only one fabric ply is in place between the jaws, the single ply is transferred over onto the receiving end of a conveyor for further processing. The fabric separation occurs by means of an aerodynamic technique which tends to lift by suction the uppermost ply from the remainder of the stack. A proximity switch determines the spacing between the gripper jaws which spacing confirms the existence of one and only one fabric ply therein.

Abstract: A transducer formed of one or more electrode arrays is positioned in confronting relation and parallel to the plane of rotation of one or more rotating members. A plurality of phase modulated, two-phase, square wave drive signals of the same amplitude and frequency are applied to each electrode. The signals are combined at a central node or electrode to form, as a result of the signal, the superposition of the algebraic sum of all drive signal pairs. Samples of the resultant signal taken at the same frequency and of a duration of less than one-half the duration of the drive signal period provide a multi-step, synchronously detected signal. The detected signal is a multi-step approximation to a sine wave, the phase angle thereof relative to a timing point being proportional to the angular position of the rotating member.

Abstract: A wire hanger assembly includes a hook member with at least three wire members depending therefrom, which wire members are specially designed for quick attachment to and release from a compatibly designed container. Each wire includes an enlarged protuberant end portion and the rim of the hanging container includes a plurality of substantially T-shaped slots therein. Each protuberance is inserted through the cross portion of one of the T-slots, and then the wire portion above the protuberance is slipped back to a position where the protuberance is seated in a cavity from which it cannot inadvertently slip.

Abstract: An apparatus for dispensing a liquid basting sauce includes an elongated sauce delivery tube having multiple spray nozzles suspended in spaced relationship along the length of the tube. The sauce delivery tube is mounted on the barbecue grill in a position above the food being cooked or, alternatively, intermediately between the food and the firebox. Connected to one end of the delivery tube is a pressurized sauce supply bottle which contains the selected basting sauce. A timer-controlled injection valve connects the sauce supply bottle to the delivery tube, and upon activation of the valve by the selected timer device, sauce is injected under pressure into the tube and dispensed through the spray nozzles.

Abstract: One of the side walls of a tray is provided with a stepladder side rail engaging bracket which includes opposed diverging channel members. Such channel members rest, without any fasteners or the like, upon the exposed upper edges of the side rails or stringers which form one side of the stepladder. The angle formed by the diverging channel members approximates the angle formed by the diverging front and rear side rails of the stepladder when in the open position. The tray may be compartmentalized to carry tools or parts; alternatively it may be partially or totally free of compartments to support paint cans or buckets for other uses.

Abstract: A towing device for connecting an IV-pole to a gurney when transporting a patient from one hospital area to another. The device includes an elongated body portion with a hook means attached on each end thereof. A spring-biased locking member associated with each of the hooks locks the hook into engagement with the respective gurney and IV-pole and prevents disengagement of the hooks therefrom.

Abstract: A tool for sanding, grinding, or polishing ferrous or non-ferrous work pieces which includes a plurality of abrasive particles, such as silica sand or the like, embedded in a binder matrix formed primarily of polytetrafluoroethylene and equivalent polymers. The matrix may further include a stiffening agent for adding rigidity to the tool, such as ground glass.

Abstract: A seat is provided with a downwardly depending tubular casing having a generally open bottom except for a retainer therein. The base includes an open top support cylinder which receives the tubular casing therein. The piston of a gas or hydrapneumatic spring cartridge is mounted at the lower end of the support cylinder in axially and radially fixed relation thereto. Even though the gas spring (cartridge and piston) is capable of swiveling about its longitudinal axis relative to the support cylinder, the longitudinal axis of the gas spring (cartridge and piston) remains substantially vertical at all times. The casing is loosely received or floats within the support cylinder and loosely surrounds the cartridge. Near the upper end of the casing an internal wall operatively engages the upper end of the cartridge in such manner that movement of the cartridge along the piston rod causes a corresponding movement of the casing.