Abstract: Fluid control apparatus including inlet and outlet check valve assemblies connected to a mounting block, filter means operatively associated with the check valve assemblies and a pulse damper device positioned on the mounting block for maintaining a continuous pressure on fluid after it has passed through the check valve assemblies.

Abstract: An elongated frame including tree clamping jaw means at one end and a shear-type cutting blade supported from the frame for movement therealong between an inactive position remote from the jaw means and an active position cooperable with the jaw means to shear a tree member clampingly engaged by the jaw means, the frame being pivotally supported from the forward end of a mobile platform for pivotal movement about a horizontal axis extending transversely of the frame and the mobile platform and vertically adjustable relative to the latter.

Abstract: Tubular metal articles are produced by centrifugal casting in a rotary metal mold lined by centrifugally distributing a quantity of a dry finely particulate free flowing refractory material on the active mold surface with the quantity being in excess of that required for the lining, densifying the layer by rotating the mold at a rate such that the refractory layer is subjected to centrifugal force adequate to establish an equivalent specific gravity of at least 7.5, determined by multiplying the actual specific gravity of the refractory material by the number of gravities of centrifugal force, contouring the densified layer and removing the excess refractory material, rotating the mold at the casting rate and then introducing the molten metal for casting while continuing to rotate the mold at least that rate. Articles so cast have relatively smooth outer surfaces which require only finish machining.

Abstract: A loudspeaker enclosure comprises a housing defining therein a principal volume having a front wall and a substantially smaller minor volume. The minor volume has a rear wall common to the front wall of the principal volume. The common wall defines a port which communicates the minor volume to the principal volume. A speaker mounting opening is defined in a front wall of the minor volume. The speaker mounting opening defines the only opening from the exterior of the housing to the interior thereof.

Abstract: An automatic anti-oxidation fluid replenisher system for processors of photosensitive material has an improved, digital electronic control system. The control system includes a digital binary counter which is counted down if use-related chemical replenishment is not occurring in the processor, and is counted up (generally at a different rate) if use-related chemical replenishment is occurring in the processor. When the counter reaches a predetermined value (e.g. zero), a detection circuit triggers anti-oxidation replenishment and resets the counter to its original value for further operation. A special circuit protects against counter roll-over should the counter reach its maximum capacity due to frequent chemical replenishment activity.

Abstract: A waveform transition sensitive Josephson junction circuit having sense bus and logic applications is disclosed. In a preferred embodiment, a device capable of carrying Josephson current is shunted by a utilization circuit. Current flowing in the device is diverted to the utilization circuit in response to only one of a pair of transitions of a pulsed input applied to the device. On one transition of the applied pulsed input current, a current is induced in a current path which follows the input until the threshold of a switchable device in the current path is exceeded. The switchable device switches and the induced current drops to zero. If the current generated by the transition is in the opposite direction to current in the Josephson device, the Josephson device remains in its unswitched state.

Abstract: A starting device for a gas discharge lamp, to whose electrodes AC voltage is applied, comprises:a. first means electrically connected with at least one lamp electrode to apply to the lamp a transient voltage pulse which initially changes in amplitude in a polarity direction relatively in opposition to the polarity of the main voltage simultaneously supplied to the electrodes,b. said first means including circuitry to cause said pulse to thereafter change in amplitude in a polarity direction in aid of the polarity of the main voltage simultaneously supplied to the electrodes.

Abstract: An optical apparatus and method for multiplexing (that is splitting) an optical ray or rays emanating from a line object disposed at the platen of a scanner. The procedure enables multiple images of a line object to be formed at the image plane. The apparatus includes a plurality of fixed and movable mirrors disposed to fold the rays along separate optical axis through a common lens onto a plurality of linear photosensitive arrays. The arrays are disposed at the image plane of the scanner. The arrays are configured with the centers of each array being disposed symmetrical with respect to the principal axis of the lens.In one embodiment a plurality of optical filters are disposed so that each filter intercepts one of the optical axis exiting from the lens. The rays which are associated with each axis pass through the filters onto the linear photosensitive arrays. The configuration is ideally suited for use in a single pass color scanner.

Abstract: A magnification lens (12) is disclosed which fits into and is retained in a window (11) in the dial of a calendar wristwatch and is arranged to magnify indicia (10) on a date ring rotatable beneath the window.

Abstract: Photographic silver halide emulsions show increased speed and reduced latent image fading when a compound of the following structure is incorporated: ##STR1## wherein: X is --O--, --S--, --Se--, or ##STR2## Y represents the atoms completing a fused aromatic nucleus; Z is ##STR3## and R is hydrogen or lower alkyl of from 1 to 5 carbon atoms.

Abstract: Temporary disposable apparel, such as a bib is formed in a multilayer arrangement with at least one absorbent panel and a non-absorbent panel. The absorbent panel forms the front and the non-absorbent panel forms the back with the non-absorbent panel offset downward or longitudinally terminating in a free flap. A series or strip of such bibs are tear line connected and may be packaged in a roll. The offset feature of the two panels provides for protection of an adhesive strip on the upper inside of the absorbent panel by the free flap of the adjacent bib in the strip. Tear lines between connecting or adjacent bibs in the strip provide for convenient packaging.

Abstract: A suspension system for protective headgear comprising a plurality of straps of a relatively inextensible material extending up in the headgear toward but stopping short of the crown of the headgear secured to the headgear at spaced intervals around the inner surface of the headgear. Each strap is formed with transversely extending pockets and has elastically deformable tubes in the pockets enabling extension of the strap within a limited range of extension upon tensioning of the strap, whereby with the headgear worn by a wearer and upon application of an impact load on the top of the headgear, the headgear moves down toward but stops short of engagement with the wearer's head and the tubes in the straps deform to attenuate the shock upon the wearer from the applied load.

Abstract: The prosthesis comprises an annular frame and a disc-shaped obturator which is coupled to the frame and is pivotable, under the action of the blood flow, between an open annular position and a closed angular position, so as to allow the flow of blood through the aperture of the annular frame in one direction and the interruption of the flow in the opposite direction, respectively. The obturator is coupled to the frame in such a way that, in the open position, it may orient itself in a direction substantially perpendicular to the plane of the frame. The side of the obturator which faces away from the central axis of the annular frame in the open angular position is defined, at least in its peripheral part, by a surface which is generated by the rotation, about the central axis of the obturator, of a curve the locus of the centers of curvature of which lies on the opposite side of this curve from a curve which generates, by rotation around the central axis, a surface defining the other side of the obturator.

Abstract: A toilet connection, coupling, gasket sealing device which is designed in one or more pieces to provide a combination of uses in completing the connection of a toilet outlet to the sewer drain pipe to prevent odors from escaping from the connection.

Abstract: A fabricated floor drain for waste reception. The drain has a receptor body having an outwardly extending top rim and a flange which extends outwardly about the entire exterior of the side walls of the body. The flange functions both to anchor the drain as well as to provide a seal for a water proof membrane. Seepage drain holes are positioned at the intersection of the flange and side walls.

Abstract: A two piece molded fiberglass shower unit includes a square base having a vertical peripheral ridge extending along three sides of the base and a single piece shower wall section. The wall section includes a continuous groove for receiving the ridge. The ridge fits tightly into the receiving groove, preventing leakage of water through the junction between the base and the wall section and rigidly attaching the wall section to the base.

Abstract: The device is designed to be mounted at the rear of the sink. A surface, supported at an incline towards the sink, has a recess adapted tor receive a single control-type faucet such that the device extends behind and around the faucet. The front portion of the device extends into the interior of this sink. Structure for mounting various kitchen articles are mounted on the surface. Drainage ports are provided in the surface to permit drainage into the sink. A movable towel rod is mounted to the device. Provision is made to accommodate a spray nozzle.

Abstract: The heat setting machine comprises a channel along which a lasted shoe upper is conveyed to be subjected to heat. The apparatus comprises a resiliently deformable member extending along and secured to one side of the channel. The resiliently deformable member, which may be in the form of an inflated bag, is arranged to extend across the channel to engage a cooperating member secured to the other side of the channel and thereby close the top of the channel. By deformation of the resiliently deformable member, the leg portion of the lasted upper of high-legged boot can be inserted between the members to be supported thereby as it is conveyed along the channel.

Abstract: A hairbrush has a pair of rigid side members and a flexible bristle plate disposed therebetween. A first face of the bristle plate has bristles extendingly outwardly therefrom. The side members include means for selectively manipulating the brush to flex the first face of the bristle plate into a concave or a convex position.

Abstract: A duster of an improved type for dust capturing efficiency, comprising a cylindrical stem with a continuous spiral thread extending along a portion thereof, a grip engaged with said stem, and fabric materials comprising a band of fiber or fibril bundles which are made of a ductile synthetic resin film or foil which has been split into fibers or fibrils and crimped. The bundles are arranged in a meandering manner. One edge of the band comprises loose edges while the other edge is held together by one or more strings. The secured edge is disposed within the thread with the ends of said material being engaged, respectively, by a supporting member provided at the tip of said stem and an engaging member provided at the root portion of the thread.

Abstract: Apparatus for cleaning air ports in a chemical recovery furnace includes a face plate removably received in a frame secured to the outer wall of the wind box associated with the furnace. The face plate pivotally carries a plurality of tubes which sealingly receive rods adapted to slide in the tubes toward and away from the air ports on the interior furnace or firebox wall. An actuating cylinder moves the rods toward the air port openings, while a reciprocating mechanism rotates the aforementioned tubes causing cleaning tips on the rod ends to enter the air port openings and clean char buildup along the edges thereof.

Abstract: A vacuum cleaner handle lock for releasably retaining the handle in a storage or transport position. The handle is connected to the vacuum cleaner nozzle by a connector defining a latch shoulder. The handle lock includes a mounting portion pivotally mounted to the nozzle, a shoulder portion defining a stop shoulder releasably engaging the latch shoulder of the handle connector, a spring portion biasing the handle lock into engagement with the latch shoulder, and a pedal portion for manipulation by the user to disengage the stop shoulder from the latch shoulder to release the handle when desired. The handle lock is formed as a onepiece element.

Abstract: A spring balancer having a compression coil spring and a friction ring. Properties of the spring and a friction force provided by the ring are designed to fit the moment of revolution of a lid that can be opened or closed upward and downward around a revolution or pivot axis. The balancer makes it possible to open or close the lid with a small force and allows stopping of the lid at any position in the whole process of the opening or the closing.

Abstract: A pair of oppositely wound torsion springs and a pair of oppositely wound spiral ribbon actuators therefor are provided in a unitary construction as a window sash balance. There are torques developed between each of the spiral ribbon actuators and its respective spring. The two torques are in opposite directions and cancel each other. This eliminates torque which would otherwise, when applied to the window sash, increase the friction between the sash and the window jam and make difficult the operation of tilt type and removable sashes.

Abstract: In the hinge bracket-mounting plate assembly the mounting plate is provided on both sides with parallel guiding grooves, in which sliding lugs angled inwardly from the flanges of the channel-shaped hinge bracket are slidable as far as stops formed by end faces of the grooves, and detents are provided for releasably locking the hinge bracket to the mounting plate. The mounting bracket is formed with a recess, which extends transversely to and connects the guiding grooves. Two sliding plates are provided, which overlap each other in the middle region of the mounting plate and are guided in the recess and formed with two substantially diagonal slots, which cross each other and extend between parts of diagonally opposite corner portions of respective sliding plates. The mounting plate is formed in its center plane between the guiding grooves with a bore, which is parallel to said grooves.

Abstract: A wire connection for two end portions of a wire including a closed loop at the first end portion of the wire and a projecting portion at the second end portion. The closed loop is inserted to a point to enable the projecting portion to extend through the closed loop. The projecting portion is deformed under loading into a configuration providing enhanced strength characteristics.

Abstract: An elastic lace for running shoes and the like employing a plurality of spacedly positioned and longitudinally arranged elastic strands covered by textile thread woven around the assembled group of the elastic strands to form an elongated web. The diameter of the strands is larger than the thickness of the web between the strands, thereby forming a ribbed configuration on each side of the web.

Abstract: A simple method of manufacturing a bearing housing coaxially accommodating two bearings is proposed. A male mold with a core and a female mold are used. A fluid synthetic resin is inserted into a space left between the male mold and the female mold to form a bearing housing. This method assures that two bearings are exactly coaxial with each other.

Abstract: A rolling mill roll having adjustable axial compliance is formed by a sleeve in the bore of which is located a stiffening arbor. The arbor is an interference fit with the bore of the sleeve over a limited central part of the roll but on each side of that central part is stepped in diameter to form, at each side, a divergent stepped space between arbor and sleeve. That space is occupied by a number of annular wedges which normally do not give support to the sleeve. At each end of the roll there is a hydraulic actuator which applies axial force to the wedges at that side and expand the wedges progressively against the sleeve. By varying the force applied by each actuator the number of wedges supporting the sleeve can be adjusted, thereby to vary the length of the sleeve supported by the arbor.

Abstract: A panel of thin bendable material is provided and includes one marginal portion thereof for disposition adjacent the worn side of a journal bore in a clock frame plate with the panel disposed parallelly in juxtaposition with one side of the plate. The aforementioned marginal portion of the panel includes a narrow elongated lengthwise outwardly projecting tongue disposed generally normal to the panel for reception in the worn side of the bore. The tongue is concavo-convex in cross section with the convex side opposing and seated against the worn side of the bore and the concave side of the tongue opposing the side of the bore remote from the worn side thereof. The tongue, therefore, defines an insert for renewing the worn side of the bore and against which the corresponding clock component shaft portion may be journaled.

Abstract: The application discloses a dimensionally stable link-belt comprising a multiplicity of helical coils arranged in interdigitated side-by-side disposition and connected together by respective hinge wires threaded therethrough, and also a method for producing the same wherein either or both of the coils and hinge wires, being of a synthetic thermoplastic monofilament material, deform on subjecting the belt to heat treatment under tension so as to impart dimensional stability to the total structure.

Abstract: A method of making a composite gasket. A composite gasket is formed from an annular coiled strip of heat-resistant core material having a metallic tanged core and a facing layer, as of a mica-based material, integrated with the strip. The coil is placed in a first die and axially compressed under a relatively low pressure into a preform having a plurality of crevices in its face. The preform and a temperature-resistant sealing material, such as expanded graphite, are placed in a second die and the graphite and preform are axially compressed under high pressure to integrate the sealing material with the preform and to mechanically interlock the sealing material with crevices in the surface of the core material. The preform and sealing material are substantially deformed during the second axial compression to provide an improved composite gasket.

Abstract: A machining center comprising a tool spindle, a tool magazine, a tool shuttle assembly for transferring tools between the tool spindle and the tool magazine including rail means, a tool change mechanism including a carriage, means for mounting the carriage on the rail means for displacement therealong, a dynamically brakeable motor for driving the tool change mechanism along the rail means in a selected direction, means for stopping the tool change mechanism driven in the selected direction including first proximity switch means secured to the carriage at a selected spacing from the rail means for maintaining the condition of the proximity switch means as the carriage is displaced along the rail means, opening means in the rail means at a selected location for changing the condition of the first proximity switch means as the carriage means is displaced in the selected direction along the rail means, second proximity switch means secured to the rail means, the tool change mechanism including a projecting eleme

Abstract: The punch, stripper and die holders of a punch press are moved bodily toward an indexable turret and automatically pick up a punch, a stripper and a die from the turret preparatory to being shifted bodily away from the turret to perform a punching operation. When the punching operation is completed, the holders return the tools to the turret, the turret is indexed and then the holders pick up a different set of tools from the turret. Means are provided for shielding vulnerable areas of the holders from debris created during the operation of a plasma-arc torch which is associated with the press. The tools on the turret also are shielded from the debris.

Abstract: A method for providing high density multiple level metallurgy for integrated circuit devices in which a relatively thin layer of plasma produced silicon nitride is deposited over a first level of interconnection metallurgy formed on a layer of silicon oxide. Overlap via holes are etched in the nitride layer followed by deposition of a thicker layer of polyimide forming polymer. A second set of via holes larger than the first are provided in the polymer layer and a second layer of interconnection metallurgy is then deposited by a lift-off deposition technique.

Abstract: A structure is provided which affords radiation protection to semiconductor devices and which specifically prevents soft failures in semiconductor memories caused by alpha particle radiation. The protection is provided by a metallic radiation shield formed on but insulated from the semiconductor memory array. The radiation shield is formed on the semiconductor devices while they are still in wafer form but after the normal device fabrication has been completed.

Abstract: An end cap assembly for a direct current motor. The assembly includes a brush retainer supported by the end cap that engages spring biased brushes to maintain the brushes in a retracted position. When an armature shaft is assembled to the end cap a portion thereof engages the retainer to move it relative to the end cap to a position where the brushes now engage the commutator of the armature. The retainer becomes a part of the motor. The end cap is formed as a one-piece plastic part that carries metallic brush holders and a circuit breaker. The circuit breaker is connected to one of the brush holders and to a terminal by C-shaped clips.

Abstract: A composite head structure having a front core consisting of a non-magnetic spacing device for separating a read-write magnetic flux path from an erase magnetic flu path and first and second core chips adhered together with the spacing device interposed between them. A read/write gap is formed at the central portion of the first core chip which is parallel to the longitudinal direction of the spacing device and whose width is defined by first and second notches which extend from respective side edges of the first core chip. Erase gaps are formed in the second core chip which extend between the side edges of the second core chip parallel to the longitudinal direction of the spacing device and whose widths are defined by a third notch formed at a position substantially corresponding to the read/write gap as viewed along the direction of the arrangement of the first and second core chips.

Abstract: An improved utensil for cutting pizza or the like is disclosed having a sharpened cutting wheel and a planar blade with a sharpened edge, the edges of both the wheel and blade are aligned so that the cutting paths traversed by each coincide. The pizza crust edges and the pizza body can then be cut respectively by the blade and cutter wheel in one cutting stroke across the pizza. The blade end further includes angled corners for completely separating the pizza at the pan corners. The planar blade is of sufficient width to hold a piece of pizza thereon for serving, and includes a serrated cutting edge to aid in inserting the blade between the pizza and the pan.

Abstract: An improved knife block for storing and protecting cutlery wherein the knife pockets provided for receiving knife blades are formed by removable members which can be located in a variety of locations to form knife pockets of the required size for the particular cutlery to be stored and protected.

Abstract: Disclosed is a blade for a cross-cutting saw that includes a plurality of alternately splayed cutting teeth wherein a certain number of said cutting teeth disposed at various points along the length of the blade are splayed with an angle less than that of the main cutting teeth, such that the less splayed intermediate cutting teeth cut away the ridge that is formed laterally between the main cutting teeth, to cut a kerf with a substantially flat bottom that does not unduly resist the action of the saw. Also disclosed is a method of manufacturing the blade of the present invention by splaying alternately all the teeth by a substantially uniform angle to the central plane of the blade, machining the edges of the teeth to provide a suitable cutting edge, and then pushing back the teeth designated as intermediate auxiliary cutting teeth so that they are splayed by a smaller angle than the remaining main cutting teeth.

Abstract: An insulation depth gauge for measurement of insulation depths within an attic at remote locations has a handle for extending linear measuring means to remote locations and indicia to indicate the depth of insulation at that location.

Abstract: A new device is provided for measuring where to make cuts for electrical outlets, windows, etc. in wall paneling. Exact locations of the cuts to be made are determined using this device which comprises an upper body member detachably affixed to a lower body member, each body member having an upper and a lower arm assembly. The body and arm members are preferably of aluminum stock and are fastened together with copper coated rivets. The measuring device of this invention can be placed on a wall to be paneled and the body and arm members positioned at the location of wall intersections or junctions and electrical outlets, windows, etc., respectively. The entire device so positioned can then be easily transported to the panel to be cut, the appropriate cutouts can be exactly marked on the panel, and the exact cuts needed are then easily made.

Abstract: An alignment, marking or positioning device is provided by a base, a chain and a retractor. The base is concave on a portion of its lower surface and the chain is rotatably attached to the base of the corner adjacent to the surface. On the other side, the base has a slotted arcuate finger. A hook extends downwardly through the slot and engages the chain when it is placed around a shaft, pipe, chuck or the like. The hook extends through the slot, a semi-circular anchor means which slides within the finger and is snugged by a retractor which may be a knurled knob where a threaded hook shaft is utilized or some form of a camming device. The base is provided with a means for attaching gauge holders, scribes, positioning devices, etc.

Abstract: A gravity-flow grain dryer for particulate material comprises a generally vertical drying column having first and second opposed spaced perforate walls, the column being adapted to receive particulate material and direct the material through the dryer. An input is provided for introducing moist particulate material into a top portion of the column and a discharge mechanism is provided for removing dried particulate material from a bottom portion of the column. A blower and heater are also provided for passing drying air into the column through the first perforate wall and out through the second perforate wall, the air drying the material within the column. A dividing wall extends between the perforate walls for dividing at least a portion of the column into at least two channels, of the channels containing a discharging mechanism for removing particulate material from the channel.

Abstract: A heat exchanger for exchanging heat between solid particles and a gas where the particles fall vertically through a column under gravitational forces and the gas flows upwardly in the column. The heat exchanger has at least one stage in the column including a stack of packing elements supported by a support having openings through which gas may flow at a velocity sufficient to form a loose fluidized bed of particles. A grill is positioned in the lower part of the column through which gas may flow to support a dense fluidized bed of particles.

Abstract: An elongated tubular member including inlet and outlet end sections is provided and each section includes inlet and outlet ends. The inlet end of the outlet section and the outlet end of the inlet section include coacting structure universally coupling those ends together for limited universal relative angular displacement about infinite axes extending substantially normal to the center axes thereof and for rotational angular displacement of the inlet section about its center axis relative to the outlet section while maintaining a good fluid seal between the universally connected ends of the sections. Handgrip structure is carried by the inlet section and projects laterally outwardly therefrom. The universally connected ends of the sections are coupled together through the utilization of a hollow partial spherical bell terminal end on one of the ends and a hollow partial spherical bulbous terminal end on the other end universally received within the bell terminal end.

Abstract: An improved walking mechanism for supporting and moving heavy equipment such as a strip mining drag line. The mechanism has a frame with a base pad attached to the frame for supporting the equipment on the ground. To move the equipment, a pair of conventional side pads are actuated with a crank arrangement to engage the ground and lift the base pad and frame off of the ground for stepping movement of the equipment horizontally with respect to the ground. The improvement comprises a cross pad positioned adjacent the forward or loaded end of the frame which is simultaneously actuated to engage the ground and provide partial support for the weight of the equipment when the side pads are actuated. The cross pad is pivotally connected to a force actuator, which in turn is pivotally connected to the frame. The force actuator is operated to extend and retract the cross pad horizontally and vertically between the frame and the ground.

Abstract: An ironing machine comprises two half-manikins including four portions, that is a bust portion, a sleeve top portion, a shoulder portion and a sleeve portion, capable of supporting corresponding portions of a coat or similar cloth articles. The sleeve supporting portion may be horizontally withdrawn or advanced, with respect to the bust-shoulder assembly, and furthermore is provided with a resilient structure for recovering the sleeve size and shape. The half-manikin bust forming portion includes a movable board for ironing the sleeve top portion.

Abstract: A combination wall calendar and support for accommodating writing materials comprising a back panel provided with an aperture by means of which it can be suspended on a wall, a front panel for receiving a calendar pad, photograph or the like, a panel which may optionally be positioned in a plane parallel to the back panel or positioned forwardly thereof at an angle appropriate to provide an inclined writing surface and second and third panels for supporting the first panel in said writing position and defining a pocket for receiving and storing writing materials.