Abstract: A board book for preschool children comprising a plurality of generally quadrilateral panels in side-by-side, congruent, stacked, relation, to define the book top edging, outside edging, bottom edging, and inside edging, with the panels being bound together at their inside edges to form the book spine, and for connecting consecutive of the book panels to the book spine for, when the book lies flat, approximate 180 degree free swinging movement relation relative to the book spine from positioning at one side of the book spine to the other side of the book spine, in paging the consecutive panels through the book, with the book front and rear panels being similar in fabrication to the book intermediate panels, and with those of the book panels following the book front panel, at their respective outside edges, being consecutively progressively indented toward the book spine, through the book rear panel, for, when the book lies flat, as on its rear panel, permitting a preschooler to readily page through the book u

Abstract: An instrument probe has two sensing elements; one is a self heated thermistor that serves as the air velocity sensor, and a second sensing element in the form of a chip thermistor, that are separately but simultaneously exposed, in the use of the instrument probe, to the air flow, with the self heated thermistor and the thermistor chip are incorporated in a self regulating bridge circuit, that, when the unit is powered, generates a non-linear signal that is applied to signal processing circuitry within the unit housing to adjust same for gain and off set with the resulting signal being applied to a linearizer circuit also within the unit housing wherein the signal is electronically processed to supply the unit output signal in the familiar 4-20 milliamp range. The transmitter device is arranged to be powered by either an alternating current or direct current supply that is in the range of about 22 volts to about 28 volts.

Abstract: A weight transfer linkage arrangement for connection between the three-point hitch of a tractor, a tool bar carrying agricultural implements and a hitch. The linkage arrangement includes a first parallel linkage connecting the tool bar and the hitch and a second parallel linkage connecting the three-point hitch of the tractor and the tool bar. The first and second linkages are both adaptable to be moved between corresponding cooperative lowered and raised positions, such that the tool bar may be raised and lowered without raising and lowering the hitch. Force applying means are connected to the first linkage to apply downpressure on the tool bar when the linkage arrangement is in a lowered position.

Abstract: An initiator device for activating air crew escape systems comprising a housing of elongate cylindric configuration defining a central chamber having a propellant gas discharge bore at one end and being open at the other end for receiving and static pressure mounting in the central chamber a pyrotechnic cartridge that is held in mounted position by a separate screw threaded head screw threadedly mounted in the housing open end, with the cartridge including a metallic body defining a compression chamber having at the portion of same that is engaged by the housing head, and having a piston received in the compression chamber that is frangibly secured to the cartridge body; the cartridge body also defines a separate pyrotechnic material receiving chamber that is open to the body compression chamber with a column of suitable pyrotechnic materials, tailored in light of the job to be done by the initiator, being mounted in the pyrotechnic material receiving chamber having a head end and terminating with an initiato

Abstract: For grinding use on the base underside of continuous in-track welded rail type track defining a railroad right of way, for removing rail excess weld metal from the underside of the rail base, at the weld joint thereof, after ballast has been sufficiently removed from between the ties at the joint involved, in which the apparatus comprises a cart that is wheeled to ride on and extend crosswise of the track, and defines at one end a carriage way that extends to one side of the right of way, with the carriage way being equipped with a carriage which carries a post structure that is adjustable lengthwise of same, and that carries an adjustably mounted grinding head that rotatably mounts on the upper side of same a grinding wheel that is applied, when in its operative relation, to the underside of the rail base, from outside the right of way and under the rail involved, in which the grinder head may be raised by adjusting the post structure lengthwise thereof to bring the uppermost portion of the rim of the grindi

Abstract: An adjustable roller assembly for sliding doors including a housing adapted to be snap-fit into a recess provided in the upper or lower surface of a door frame, the housing defining a cavity which is open at the lower end. A roller carrier is mounted in the housing cavity and is vertically adjustable with respect to the housing. The lower end of the roller carrier defines circular flanges in which is rotatably mounted a roller having an integral hub. A camming arrangement associated with the roller carrier is accessible for adjustment from the side of the door frame and is operable to adjust the vertical position of the roller carrier and roller to adjust the slack between the door and the track upon which the roller is adapted to ride.

Abstract: An ejector arrangement for aircraft store racks that are carried by military type aircraft and the like for releasably attaching to the aircraft stores such as conventional or nuclear weapons, in which the ejector arrangement is duplicated in mirror image form at the usual fore and aft positions of the rack, with each ejector arrangement being in the form of an elongated housing with which the usual fore and aft sway braces are respectively integral, which ejector housing internally defines an elongate internal chamber in which are mounted an outer cylinder and inner cylinder that in the dormant relation of the ejector are in substantially telescoped coaxial relation with like ends of same disposed adjacent one end of the housing to which the rack ballistic gas is supplied, with the ejector cylinders at their other ends being exposed externally of the other end of the housing and keyed for sequential movement to their extended relations under the action of the ballistic gas involved, to thrust the store which

Abstract: A storage bin arrangement especially suited for bulk solid material storing and discharge in accordance with impelled retrieving concepts, in one embodiment of which essentially the entire bin itself is arranged for responding to a circular conveying type vibratory helical stroke movement generated by a pair of electric motors secured to the opposite sides of the bin in oppositely oriented positions to dispose their respective driving shafts at opposite, typically, 45 degree angulations with respect to the horizontal, and with each such motor shaft driving a pair of eccentrically oriented weights, with the bin having a low profile bottom section equipped with one or more vertically oriented, vertically rectilinear, discharge chute arrangements and having one or more inverted cone inserts applied internally thereof in spaced relation above the bin low profile bottom section, and in a second embodiment, a bin actuator having the features indicated above is mounted below a large discharge opening in a convention

Abstract: An enclosed tilted axle caster with an internally mounted brake mechanism includes a caster body, a caster wheel and a braking element of singular resilient construction completely internally disposed within the caster body. A cam element enclosed within the caster body is actuable by an operating pedal which extends out of the caster body for engagement by a foot to move the resilient braking element from its normally biased, released position, to a braking position in which the caster wheel is locked against rotation.

Abstract: A square butt hollow door frame including upper and lower rail members, and a pair of stile members wherein the inner walls of the stile members are provided at each end with a recess defining inwardly laterally extending flanges adapted to be received in corresponding slots defined through each end of the upper and lower rail members, such that when the respective flanges are received in the respective slots, a locking mechanism is positioned, thereby securing the side members and rail members together to form a door frame.

Abstract: A target fluid flow indicator gauge comprising a non-magnetic housing defining a target chamber having a rounded portion that is curvilinear about an axial center that is coaxial with a fluid flow central axis through the gauge, with the chamber rounded portion lying in a plane that extends normally of such axial centers, a leaf spring mounted in the housing chamber and adjacent one end of the spring, which leaf spring at the other end of same has fixed to a rigid lever arm that mounts a disc-like target in centered relation within the chamber portion with the housing further defining inflow and outflow fluid ports on opposite sides of and centered on the axial centers and on the target for directing fluid flow against the target and out of the chamber; the lever arm carries a driving magnet assembly adjacent the target that is magnetically coupled through an imperforate wall structure of the housing to an externally located follower magnet assembly that acts through a short lever arm to pivot an indicator po

Abstract: A hand-held, rotatable, cylindrical drum provided with a series of sequentially interchangeable stimulus patterns that cover the drum which, when rotated in front of a patient, induces optokinetic nystagmus which is used to non-verbally assess the visual acuity of a patient.

Abstract: A printed insert for food packages consisting of a film laminate including a central core layer of biaxially oriented polymeric film printed on one or both sides, then coated on both sides with a layer of adhesive over which is laminated an outer layer of transparent, grease-resistant, biaxially oriented polymeric film, the resultant laminate sealing the printing ink.

Abstract: A multicoil tube type pressure gauge arranged for direct drive of the gauge pointer and for safely handling overpressure in the event of Bourdon tube rupture comprising a casing of round configuration defining a planar upright main chamber, with the casing being indented rearwardly adjacent the axial center of the gauge to define a supplemental chamber, a mounting plate that is common to all the working parts of the gauge secured to the gauge casing over the supplemental chamber and mounting cantilever fashion a tubular spool journaling the gauge pointer shaft, a multicoil Bourdon tube encircling the spool having its sealed end secured to the shaft within the supplemental chamber, and a pressure connection fitting in the form of a connection block anchored to the mounting plate and having a pressure cavity to which the Bourdon tube other end is sealingly secured with its bore in communication with the fitting pressure cavity, with the Bourdon tube direct driving the gauge pointer shaft; the working parts of t

Abstract: A differential pressure switch assembly that includes a conventional snap action switch for controlling the off-on modes of operation of state of the art equipment, which assembly comprises a high pressure plate that defines the high pressure cavity and a high pressure port of restricted size therefor, a low pressure plate that defines a first subchamber of the assembly low pressure cavity and a low pressure port therefor, a diaphragm clamped between the high and low pressure plates and separating the switch assembly high and low pressure cavities, a piston mounted in the low pressure plate for movement perpendicularly of the assembly diaphragm and biased toward the diaphragm by an adjustable range spring device, the range spring of which can be adjusted to provide the set point for the switch assembly, with the range spring device being formed to dispose the range spring in a second low pressure subchamber that is in open communication with the first low pressure subchamber to form a composite low pressure c

Abstract: A tensioning arrangement is provided to position belt cleaner blades relative to conveyor belt, which arrangement includes an inflatable bladder which acts to move a pivotally mounted crank, which, in turn, moves a support shaft, which carries the cleaner blades. Pressurization of the bladder causes it to expand thereby engaging the arm which moves the support shaft to a position at which the cleaner blades engage the belt to be cleaned.