Abstract: There is disclosed apparatus for rapidly transferring samples for analysis by thin layer chromatography from a sample container to the chromatography plate and in which a chromatography plate is supported in a housing through which drying air, preferably heated, passes over the working surface of the chromatography plate. A plurality of sample applicators are precisely positioned above the plate by means of a transverse mounting plate having a transverse array of holes through which the applicators are passed to engage the working surface of the plate, the applicators taking the form of an imperforate sleeve surrounding a porous core projecting from the end of the sleeve and sharpened to a point to minimize exposure, with the other end of the sleeve projecting beyond the inner end of the porous core to define a solvent reservoir which if desired can be packed with fiber wadding to control fluid flow and with the reservoir adapted to be closed by a sealing cover member.

Abstract: A reel assembly for rapidly feeding wire from heavy coils over a range of sizes, with the coil being clamped in a basket rotatably mounted within an inwardly tapering conical shield and with wire being guided from the coil by a split annular deflector bar coaxial with the coil and opening into a wire-confining guide which is vertically adjustable. The frame supporting the reel assembly extends away laterally from the conical shield to carry a support for a spring guide through which the wire passes on its way to a forming machine.

Abstract: There is disclosed an apparatus for injecting fluids into flowing aggregates such as injecting water into a traveling dry cementitious mix in which a substantially annular fluid slot surrounds the flow path for the aggregate to establish an inwardly moving sheet of fluid to impinge on the aggregate.

Abstract: There is disclosed a tape deck for receiving standardized tape cartridges for data interchange in which the cartridge is accurately positioned by the combination of the forward thrust of a pair of resiliently biased pivot plates working in the notches of the cartridges and the resilient upward thrust of a leaf spring, with the cartridge near the plane of the interface of the recording head with the tape, having precision reference bearing points engaging complementary positioning pins anchored in the deck. The pair of pivot plates are restrained to remain in phase by means of a cross-coupling linkage and means are provided for the automatic ejection of the cartridges.

Abstract: A number of conveniently manufactured and easily installed fastening devices are disclosed for use with conventional cabinets and enclosures. Each of these devices inherently utilizes the physical fact that a child's hand span is smaller than that of an adult. The devices make it impossible to open an enclosure by individuals having a hand span less than a predetermined length. Each fastening device, or pair of devices, includes a spring-biased latching means that engages a fixed strike plate internal to the enclosure being protected. Latch release means are provided on the outside of the enclosure and these latch means are operable in conjunction with a further release means, both combining to successfully open the enclosure.

Abstract: There is disclosed a radiant energy device for bonding thermoplastic films without contact between the plastic films and the radiant energy sources in the form of resistance wires heated to incandescence by pulses of current timed to occur when the plastic films have been supported in tension and the wires have been brought to a point of close proximity to but spaced from the films. The wires are received in contoured reflecting cavities to focus and control the radiant energy, and the cavities are ducted to a source of coolant fluid which is applied in pulses timed in relation to the current pulses to cool and solidify the plastic seals and to cool the system to a reference temperature level at the conclusion of each cycle so that uniform sealing standards can be maintained. Resiliently biased, movable end supports for the wires maintain uniform tension under changes of wire length with temperature so that the distance of the wires from the films is uniform and unchanging at all points along its length.

Abstract: The method of generating data for files containing information regarding three-dimensional surface configurations, involving selective compilation of area data through use of projected rays of differing orientation, recording of the radiation patterns produced by these rays on the surface, and correlation of records from overlapping fields of view to meld information from contiguous areas into a continuous data bank.

Abstract: An exercising device for gymnasium or playground structurally designed to support an occupant in a partially reclining position. The structure is basically conical and includes a personal support area surrounded by a structure support area that is designed for contact with the ground or floor surface. Suitable means are provided within the conical structure for the occupant to position his hands and feet so that the unit may be thereafter moved in a rotational fashion by shifting the center of gravity of the unit-occupant combination.

Abstract: There is disclosed apparatus for automatically extracting compounds of clinical significance from a plurality of biological samples simultaneously by elution using a multi-channel system with common sources of wash reagents and eluent and common pre-programmed controls for all channels including means to purge wash and dry the channels between stages and means to inject essentially inert gas plugs as the interfaces between subsequent liquid phases. The extracted compounds can be mixed with reagents, mechanically agitated and examined qualitatively and/or quantitatively as by spectrophotometry to yield output readings for all channels. The flow patterns within the channels are determined by liquid-apportioning means and fluid distribution and metering, including both liquid and gaseous is accomplished by valves which respond to single control inputs to effect flow in all channels simultaneously.

Abstract: An environmentally controlled unit to receive specimens in standard vessels, such as petri-dishes, within a sealable chamber. Passageways are provided through and around this sealable chamber to provide a controlled flow of fluid throughout the chamber and an additional flow of temperature controlled fluid within the unit adjacent to said chamber.

Abstract: A temperature probe that does not perturb incident electromagnetic fields which includes a high resistance thermocouple mounted within a rigid needle structure. Special leads connect the thermocouple to appropriate metering means to register the temperature sensed by the thermocouple.

Abstract: There is disclosed a self-actuated pilot-controlled pressure-responsive valve for fluid pressure systems wherein the main valve is arranged to be seated by the fluid pressure in the system and a normally balanced piston and cylinder assembly pulls the main valve from its seat in response to elevated system pressure in a spring-loaded, tandem pilot and stabilizing valve assembly which in turn establishes a driving pressure differential across the piston, with the initial unseating of the pilot valve occurring substantially independently of the stabilizing valve which thereafter closes to hold the pilot valve open until reduced system pressure is achieved. At this time, the tandem valves operate as one with the pilot valve closing and the stabilizing valve opening against a force derived from system pressure through a conduit having a metering orifice which effects a pressure drop in the tandem valve assembly which insures full and chatter-free operation until the main valve is again closed.

Abstract: A hand-operated tool for cutting sheet glass; the tool including a flat plate which near one end supports a rotatable circular cutter blade for scribbing a scored line on a glass surface, a spherical knob at an opposite end of the plate serving as a hammerhead to strike at the glass on an opposite side of the scored line so to deepen the cut of the score, and the plate having a series of different width notches along one side edge for grasping one end of the glass and breaking it off about the scored line; the plate additionally including a storage compartment inside for storing extra circular cutter blades.

Abstract: An arrangement for controlling a plurality of synchro receivers from a single command position. The system requires very little power relative to the torque produced in the controlled synchros. The desired synchro movement is achieved by selective interconnection of the stator terminals at appropriate times to effect desired rotation of the rotor.

Abstract: A uniquely designed smoking pipe having a removable lighter mounted within the body of the pipe itself. The pipe components and design provide cleaning features, a variable volume tobacco bowl, and compatible use of the pipe with the lighter unit.

Abstract: A compressed air engine having specially designed cylinder heads and piston configurations in order to reduce friction and maximize the application of air from a pressurized air source. The disclosure includes a lubrication system whereby the mechanical parts receive oil via a lubrication arrangement including a conveyor chain continually bathed in oil.

Abstract: An ashtray and cigarette box including an adjustable timer cooperating with a snuffing out cover and an audible alarm which alerts the user if the cover has not been closed after a preselected interval of time.