Abstract: A method of producing a rocket thrust chamber includes positioning sleeved cooling tubes within a structural jacket to form a tube bundle, and positioning a liner within the tube bundle thereby sandwiching the tubes between the jacket and the liner. The tubes are then subjected to high internal pressure and inflated at high temperature while the liner is simultaneously subjected to the same high pressure, thereby forcing the sleeved tubes into intimate contact with adjacent sleeved tubes, the liner and the jacket, and the temperature is maintained until bonding has occurred between the liner, sleeved tubes and jacket.

Abstract: A method of manufacturing an ink jet head including the steps of: laminating a dry film photoresist 51 on an inner surface of a nozzle plate 2, the dry film photoresist being a photohardening resin; exposing the photoresist 51 with such energy as to half-harden the photoresist while superposing thereon a photomask M1 having a predetermined masking pattern; developing the thus exposed photoresist 51; laminating a photoresist 52; secondarily exposing the photoresists 51, 52 to form a partially hardened portion 5C; bonding an elastic plate on the portion 5C; and integrating the bonded plates while hardening them by heating.

Abstract: A receiver dryer for an automobile air conditioning system embodies a cylindrical housing having a spin-closed top end; an inlet tube and an outlet tube inserted in holes drilled in the top end of the housing and both extending through the housing to their respective predetermined positions; and an axially inserted desiccant bag and thermoplastic perforate filter. The outlet tube extends through a hole in the filter to a predetermined position from the bottom end of the housing, and a retainer clip holds the filter at a set position in the housing while the bottom end of the housing is spin-closed. Spin closing the bottom end creates a thermal gradient in the wall of the housing such that the thermoplastic perforate filter is thermally bonded at its edge to irregularities of the inner surface of the housing thereby forming a barrier to any particulates which might otherwise have passed by the filter.

Abstract: An oil radiator structure particularly for heating rooms has a main body which is defined by a plurality of mutually associated radiating elements, inside which a hot fluid circulates, each radiating element includes at least one shaped plate-like element which has heat propagation formations suitable for reducing the heat on its outer surface and for simultaneously increasing the efficiency of the radiating element.

Abstract: The object of the invention is to provide an attachment heavy duty shear of reduced weight. This shear has a single-row upper jaw and a single-row lower jaw, with the upper jaw being driven by a built-in hydraulic cylinder to open and close with respect to the lower jaw. The forward end of the lower jaw has a 7-configured guide member for precluding a lateral displacement of the upper jaw in shearing. This construction provides for reduced overall weight and positive grip and shearing.

Abstract: Hand held fluid operated shears comprises first and second blades. The blades are pivotally connected for movement of one relative to the other about an axis. The shears include a thumb-receiving handle and a finger-receiving handle. One of the handles is supported for pivoting about the axis independently of both blades. The other handle is fixed relative to the first blade. A fluid actuator is coupled between the fixed handle and the second blade. A fluid operated servo mechanism is controlled by the second blade and the pivoted handle to control operation of the fluid actuator to move the second blade relative to the first blade in coordination with the movement of the pivoted handle. The rate of movement of the second blade decreases relative to the rate of movement of the pivoted handle as the second blade moves from an open position at an acute angle relative to the first blade to a closed position where it overlies the first blade.

Abstract: A knife consisting of a blade with a tang which is mounted in a handle. A guide, preferably made of plastic, in which the tang can be quickly moved to and fro by an oil-pressurized piston against the pressure of at least one spring, is provided in the handle. The piston runs in a cylinder provided in the handle of the knife. The oil line is connected with a central station located some distance away.

Abstract: A hammer driven double cut shear device (10) for punching and cutting sheet metal in a precision fashion; wherein the device (10) includes a handle unit (11) having a punching blade (33) projecting outwardly from one side of the handle unit (11) a cutting blade (32) depending downwardly from the handle unit (11) and a hammer impact surface (25) projecting outwardly from the opposite side of the handle unit (11).

Abstract: A device for contactless determination of a rotary angle has two bodies which are movable relative to one another, at least one sensor coil through which an alternating current flows and whose inductivity and alternating current resistance value changes due to a relative change of a size of regions of a first one of the bodies which regions are associated with the at least one coil and composed of a material selected from the group consisting of an electrically conductive material and ferromagnetic material, the first body being arranged with mechanical prestress relative to a second one of the bodies.

Abstract: A doorframe template apparatus is provided which includes a T-shaped first straight edge member which includes a straight top member and a straight middle member extending perpendicularly from a middle portion of the top member. The straight top member includes a top flange member and a bottom flange member at right angles to the straight middle member. A second straight edge member is connected to the straight middle member by a lockable pivoted joint. The lockable pivoted joint enables the T-shaped first straight edge member to be adjusted with respect to the second straight edge member at angles that conform to respective doorframe angles when the straight top member of the T-shaped first straight edge member is placed against a doorjamb, and the second straight edge member is placed against a horizontal doorframe member. The straight middle member includes a first aperture.

Abstract: A vehicle wheel alignment system includes a battery powered wheel alignment sensor assembly and a a storage station for the sensor assembly. The storage station is designed to hold the sensor assembly by the wheel adapter in a predetermined position with respect to the storage station. It also includes a power source for charging the sensor assembly battery. An interlock arrangement automatically interconnects the sensor assembly battery and the power source to charge the sensor assembly battery when the sensor assembly is disposed in the predetermined position. A display is operatively connected to the wheel alignment sensor assembly for displaying measured alignment information. A battery level measuring circuit measures the state of discharge of the sensor assembly battery by examining the battery voltage and generates a signal proportional to the measured battery voltage.

Abstract: A support base of an angular velocity sensor is supported rotatably at one end, and the support base is vibrated by a piezoelectric element. By this vibration, a known rotational angular velocity is applied to the angular velocity sensor. For example, a difference of two output signals of the angular velocity sensor is measured. This difference of the output signals is detected in synchronism with phases which differ from each other by 180.degree., in two synchronous detection circuits. The detected signal is smoothed in smoothing circuits, and further, amplified in amplifying circuits. An output signal of the amplifying circuit is composed in a variable resistor as a composite circuit. Meanwhile, from the output signal of the amplifying circuit, the output signal of the variable resistor and a signal corresponding to the known rotational angular velocity are subtracted.

Abstract: A device for assisting in the adjustment of sights for a hand gun including a base elongated in the direction of the axis of the barrel of the gun. The forward end of the base includes a pair of lateral spaced support legs, and the rear of the base includes a single vertically adjustable support leg. Adjacent the forward end is a spacer block having a bolt hole extending laterally therethrough. A clamping jaw is located adjacent each lateral side of the spacer block, with the clamping jaws having resilient foam or similar material on their inner faces. These inner faces are adapted to abut against the lateral sides of the frame of the hand gun to retain it in position and absorb recoil when the gun is fired. To move the clamping jaws into a clamping engagement with the hand gun, there is provided a bolt extending through the hole in the spacer blocks and the associated clamping jaws, with a manually operable nut threaded upon the bolt to provide a clamping force.

Abstract: A length measurement device for measuring the relative position of two objects is disclosed wherein a graduation on a scale carrier is scanned by a scanning unit for obtaining measured position values. The scale carrier is connected to a first fixed reference point within the measuring length in a rigid manner, and is connected with a carrier member so as to be longitudinally displaceable, for compensating for measurement errors which are caused by temperature variation. The carrier member is rigidly connected with a first object at a second fixed reference point within the measuring length and is connected so as to be longitudinally displaceable with the first object 1. The first fixed point and/or the second fixed point are changeable or movable within the measuring length.

Abstract: A tool for locating a sole plate parallel to and a preselected distance from a foundation edge for marking locations for anchor stud bolt holes is then used for locating the holes in the sole plate to accept the studs set vertically in the foundation between the temporary location of the plate and the foundation edge. The tool is, preferably, made of a single plate shaped to have a rectangular rule port ion with a narrowed neck extending to a right angle bend to provide an index surface, with a wider hook head extending at a right angle from the index surface, away from and parallel to the hook portion. The hook head has arcuate notches on each side arranged such that the center of radius coincides with the plane of the index surface and a line extending along each edge of the rule portion.

Abstract: The present invention relates to a measuring device for the bend angle of a metal sheet or plate in a press brake of the type having a reciprocable punch with a sharp bending edge, and a die having two bending edges on either side of a substantially V-shaped groove or channel, the measuring device comprising a rotatory measuring element, the cross-section of which has a circular peripheral part centered around the axis of rotation of the measuring element, and a linear peripheral part which is shorter than the diameter of the circular peripheral part.

Abstract: An apparatus for measuring crimp height between crimped opposite sides of a terminal which has been crimped to an element is provided. The apparatus is particularly useful for measuring the crimp height of a terminal when one or more of the crimped opposite sides has a surface profile that is non-planar, or when a soft insulation sleeve is present on the terminal in the crimp area. The apparatus includes a pair of opposed probe members which are relatively movable between open and closed positions. In the open position the probe members are spaced apart- In the closed position the probe members are biased against the crimped opposite sides by springs. The probe members are specially configured to match the surface profiles of the crimped opposite sides.

Abstract: An apparatus is provided for cooling warm granular product. The apparatus includes a grate system having a first grate overlying and second grate. The first grate has a plurality of parallel generally spaced apart members, whereas the second grate has a plurality of parallel equally spaced apart beams. The first and second grate reciprocate relative to each other between a first position in which the product is retained on the grate system and a second position in which the product flows through the grate system. Each of the members in the first grate includes an air flow deflector defining a primary and secondary air outlets for dividing a flow of air into primary and secondary air streams. When the grates are in their relative second position, the secondary air stream is increased to minimize fluidization of the pellet product as it flows through the grate system.

Abstract: An evaporation device for drying sludges includes a heatable, hollow cylindrical, approximately horizontally oriented evaporator provided at one end with a product inlet and at the other end with a product outlet while in its product-charged interior an essentially radially oriented, externally driven rotor is disposed which is equipped with vanes that extend essentially over the length of the evaporator. At least in the region upstream of the product outlet, the walls of the interior are provided with at least one cutting zone that extends essentially in the longitudinal direction of the interior and interrupts the circular outline of the cross section of the interior.

Abstract: An improved method and apparatus for removing moisture from a wet material.

Abstract: In a preferred embodiment, a positively ventilated shoe, including: an air pump disposed in the shoe to provide a flow of air; and apparatus to selectively reverse direction of the flow of air to pump air into or pump air out of the shoe.

Abstract: A shoe sole and heel member has a sole portion and a heel portion. Bulges are molded into the heel portion and the metatarsal region of the sole portion defining heel and metatarsal cavities. Passageways between the cavities enable air to move back and forth therebetween. A sealing member is attached to the sole and heel member to hermetically seal the air in the cavities and the passageways. In one embodiment, a single U-shaped heel cavity communicates with a single metatarsal cavity through a Y-shaped passageway. Rigid stabilizers laterally flank the cavity-defining bulges. In another embodiment the heel cavity has forward and rearward portions interconnected by a narrow channel, the portions respectively communicating through separate passageways with opposite sides of the metatarsal cavity, with oppositely-directed one-way valves in the passageways. In a third embodiment, there are two separate metatarsal cavities and two separate heel cavities respectively intercommunicating through two passageways.

Abstract: A bucket wheel has a conical supporting body constructed as an inner shell rotatably mounted on the bucket wheel axis and a device which co-operates with the supporting body to accommodate the buckets on the outer rim of the bucket wheel. The supporting body is prolonged radially by a prismatic-type outer shell arranged on the supporting body parallel to the device, which has cell-forming dividing walls on its radially outward peripheral region. The prismatic shell, viewed in the radial direction, is shaped from a plurality of approximately trapezoidal steel plates which are welded to one another, making a plurality of bends, to form a polygonal conical envelope.

Abstract: A stretchable arm of a deep excavator comprises top, middle and base arms wherein a bucket is suspended from the top arm and a working unit is fixed to the middle arm. Two hydraulic cylinders constituting the working unit are arranged in parallel with each other while cylinder rods thereof are oppositely directed, wherein the cylinder rod of one hydraulic cylinder is coupled to the base arm and the cylinder rod of the other hydraulic cylinder is coupled to the top arm. It is possible to extend and contract each arm of the stretchable arm synchronously with one another at higher speed compared with a conventional deep excavator having a single hydraulic cylinder. The oil under pressure which flows out from the discharge chamber of each hydraulic cylinder can be merged into the oil under pressure for extending each hydraulic cylinder so that the amount of oil to be supplied to the pressure chamber is increased.

Abstract: A side wing attachment assembly for moldboards includes hydraulically actuated, spaced wing plate members capable of being placed predetermined distances from one another, forming with the moldboard material moving surface a containment pocket for material to be moved or directed. The side wing assembly includes the ability to move the wing plate members away from the material moving surface of the moldboard, or repositioning the wing plates to accommodate reorientation of the moldboard material moving surface.

Abstract: An excavating tool tooth includes a mounting area (10) and a working area (11). The working area (11) includes longitudinal bars (14-18) made of a hard material. The bars are inserted in the steel and snugly contact the tooth's cutting face. The presence of the rods made of a hard material substantially increases the tooth's service life. The bars are produced by infiltration.

Abstract: A greeting card has on its front surface a picture frame formed of a single, integral piece of magnetic sheeting. The magnetic sheeting picture frame is held to the front of the card by adhesive which will release the frame when the frame is pulled away with a small amount of force. The one-piece integral frame has a central opening for cropping and displaying a photograph or other picture on the front of the greeting card, inserted between the front of the greeting card and the back of the magnetic frame. The releasable adhesive can be in contact with the back surface of the frame along three legs but not along the fourth, so that a purchaser of the greeting card can slide a picture down between the card and the frame. Alternatively, the adhesive can contact all four legs of the back surface of the frame, with the frame to be pulled off and replaced by the purchaser to retain a picture behind the frame.

Abstract: A windowed display panel assembly for retaining multiple flat collectible items such as sports cards, photographs and other flat items in such manner that the items can be viewed from both sides without removing the items from the panel. The assembly has a rigid transparent front panel, a flexible transparent pocketed rear sheet which is retained in surface contact with the front panel by a peripheral frame to form a rigid assembly which provides both front and back viewing of cards displayed in the assembly and permits the cards to be easily removed and replaced in the assembly.

Abstract: An illuminated sign assembly for use on a communications antenna tower. The sign assembly encloses the antenna tower. The sign assembly is mounted to the exterior of the antenna tower by paired support arms connected to the tower legs. The support arms provide an open area between the sign assembly and the tower face. A lighting panel is mounted to the exterior face of the tower within the open area. The sign assembly includes fabric side panels secured to side panel frames carried by the support arms and curved corner sections, which completely enclose the antenna tower.

Abstract: An apparatus for reducing air drag against an apparently flat message surface when the message is intended for day or night viewing from approximately directly in front or behind. Symbols comprising the message, or their backgrounds are inclined backwards as louvers to allow free air passage. The symbols or their backgrounds may be placed on a plane behind and parallel to the apparent message surface, and viewed through hole(s) cut in that surface, with a gap between the two planes allowing air flow. Night-lights above each symbol may be provided to ensure accurate night viewing.

Abstract: A street identification sign and supporting post assembly designed to be essentially theftproof and vandalproof. The sign boards are preferably made of cast aluminum and contain an integrally cast elongated rod that is also cast into the open top of the supporting post. The various components of the assembly are all integrally joined together with cast metal into a unitary street sign structure or assembly. Also disclosed is a method for producing the unitary structure or assembly using aluminum castings.

Abstract: A street direction indicator for displaying both the name of the street and direction thereof includes a surface having inscribed thereon the name of the street and one or more stripes, said stripes being oriented parallel to the direction of the street indicated on the surface,

Abstract: A ticket mounting apparatus which includes a bracket for attaching the ticket support to a shelf or the like. The mounting apparatus includes a structure to permit the label to be mounted in several selected positions. The mounting apparatus is made up of a C-shaped outer member having internal teeth and a slot. A cylindrical C-shaped inner member having external teeth is received in the C-shaped member and a bracket attached to the C-shaped inner member and extends through the slot and can be attached to a bracket holder. The C-shaped outer member can be attached to a support and the bracket can extend out of the slot so that the ticket holder can be swung up and down with the cylindrical member.

Abstract: A Quick Muzzle Loading Rifle is provided that consists of a barrel extension that is threaded into a frame and a short barrel that is pivotally attached to the frame and can pivot between a position in-line with the barrel extension and a position to the side of the frame. When pivoted to the side of the frame, the short barrel is loaded. Once loaded, the short barrel is placed in-line with and forced toward the barrel extension which causes the short barrel to contact a gas seal that ensures leak-tight communication between the short barrel and the barrel extension. While in this configuration, the Quick Muzzle Loading Rifle is capable of being fired. A Quick Loader functions to load the Quick Muzzle Loading Rifle and consists of a main cylinder, a cylinder top, and a cylinder base. The main cylinder bounds, in its interior, a plurality of cylindrical storage cavities.

Abstract: A cartridge magazine for containing and feeding .22 rimfire cartridges including truncated, hollow point or flat nosed cartridges is disclosed. The magazine includes a metal magazine body having first and second sidewalls and first and second end walls. The cartridge storage area is defined by these four walls. The magazine body has a cross-sectional area that is substantially the same throughout the height of the magazine body. The dimensions related to the cross-sectional area are critical to proper feeding of truncated cartridges into the firearm while avoiding cartridge jamming. The magazine body includes an outlet section from which the cartridges enter the firearm from the magazine body. A number of structural members are located at the outlet section to assist in proper feeding of the cartridges.

Abstract: A recoil pad assembly (10) fitted to the stock of a weapon (W) such as a rifle or shotgun for cushioning a shooter (M) against recoil forces produced when the weapon is discharged. A first pad member (12) is installed on a butt end (E) of the stock (T) of the weapon. A second pad member (14) is pressed against a shoulder (S) of the shooter when the shooter prepares to discharge the weapon. The second pad member interfits with the first pad member for movement of the pad members relative to each other when the weapon is discharged. Compression springs (56) then restore the pad members to their original position relative to each other. A seal is effected between the pad members when the weapon is discharged trapping air between the members. Relative movement of the pad members then compresses the air producing a cushioning effect which lessens the recoil force to which the shooter is subjected.

Abstract: A sight mount for interchangeable sighting devices which provides adjustable eye relief and improved stability. The base, affixed to the receiver, is provided with parallel guideways to receive a slide support. Midway on the base is a vertically movable block which frictionally engages the slide support to lock it into position at the desired distance from the eye. A separate slide support is used for each scope for ease of interchange.

Abstract: A firearm having a laser beam capacity for aiding in sighting positioned within the firearm for adjustment therein and having an on-off switch operated by the firearm operator's trigger finger of the trigger finger hand is in position on the firearm grip. The switch can be assembled for operation by finger pressure from a selected side of the firearm.

Abstract: A decoy has a moveable neck which can be flexed in many different directions and which automatically returns to its upright position.

Abstract: A fishing rod includes a reel rest whose top has a reel foot mounting portion, and a grip located in front of the rest, and having a front portion and a thumb contact part which defines a flat top surface having a sufficiently lower height that the top of the front portion. When a fisherman uses the fishing rod while gasping the grip with his hand, a fishline is kept from coming into contact with the thumb of the hand or the portion thereof, which adjoins the thumb.

Abstract: A releasalable sinker for attachment to a fishing line having a lure or bait attached thereto. The releasable sinker has a sinker body and a disengageable attachment member disengageably attached to the sinker body. The disengageable attachment member is attached to the fishing line. The sinker body has first and second angled engagement channels for disengageably receiving springable legs of the attachment member. As the sinker body becomes snagged, the springable legs of the attachment member pull free from the engagement channels so that the disengageable attachment member will disengage from the sinker body without the fishing line breaking. Thus, the lure or bait can be retrieved, even though the sinker body has been lost.

Abstract: The plate body of a hydrodynamic depressor is composed of a flat central panel flanked along its opposite longitudinal edges by side panels disposed at dihedral angles to the central panel. A housing carried by the forward portion of the body has a cylindrical crossbore receiving a cylindrical weight that can be shifted transversely of the fishing line and the fishing line and bait leader can be offset from the vertical longitudinal central plane of the depressor body to trim the depressor for traveling along a course offset to port or starboard from the course of the leading end of the fishing line. The upper and lower surfaces of the side panels are crinkled or rippled to form light-reflecting surfaces producing a glitter for attracting fish.

Abstract: A mousetrap with a catch portion incorporating a platform and a cup-shaped receptacle on the platform which is spaced inwardly from the edges of the platform to require the mouse to stand on the platform in order to retrieve the bait from the cup-shaped receptacle. When the mouse stands on the platform, it will be tilted as to release and spring the trap.

Abstract: A plant shelter (10) is provided which surrounds a plant (P) and provides a microclimate (M) surrounding the plant (P) for enhanced growth of the plant (P). The plant shelter (10) is formed from a film (20) rolled into a cylindrical wall (25). The film (20) has selective absorption characteristics resulting in the film (20) shielding the plant (P) from ultra-violet radiation (U) and visible radiation which is not of a wavelength corresponding to blue light (B). The shelter (10) can be closed partially on a top edge (22) thereof to further isolate the microclimate (M) from conditions of the climate (C) outside the shelter (10).

Abstract: A specialized doubly tongued stake is designed and engineered to align, connect and ground-anchor post or block-like elements in the creation of one-element-high, one-element-thick, stakeable landscape edgings. Each landscape element is channeled with a tongue-locking keyway on each of two parallel, opposed side edges. The elements may be chained into continuous aligned arrangement by the intermediate insertion of the stakes so as to form long flexible landscape edging segments which may be then be staked to the ground in the creation of permanently aligned edging structures. Each landscape edging element is thus doubly staked to the ground with the number of stakes and staked elements being substantially equal.

Abstract: A plate is provided symmetrically oriented about an axis, having a plurality of annular arrays of openings directed through the plate, with the openings of adjacent annular arrays offset relative to one another to each permit reception of individual flower stems through the guide plate, with the guide plate having support legs removably mounted thereto and permitting positioning of the guide plate within a container for the support of flowers and the like.

Abstract: An improved watering system is provided which consists of a water supply, an area of soil, vegetation within the area of soil and a mechanism for conveying water from the water supply by capillary action to the vegetation within the area of soil, so that the vegetation can grow normally within the soil.

Abstract: A bicomponent tissue and seedling culture bottle includes an upper cover portion having an opening facing downward, and a lower container portion having a closed base and suitable for fitly but detachably connecting to the downward opening of the upper cover portion, characterized in that, a T-shaped air vent consisting of a vertical air passage centered at a top portion of the upper cover and two horizontal air passages symmetrically located at and extending from two opposite sides of the vertical air passage to be communicable with the outside air, so that air or gas produced in the culture bottle during the culture process can escape from the air vent and germs or viruses can be prevented from entering into the culture bottle when the seedlings are matured and/or are transplanted and the survival percent of the bottle cultured seedlings can be raised.

Abstract: A grille for security institutions consists of a body having two opposed faces. At least one passage extends through the body between the opposed faces. The passage has at least two changes in direction defining a generally zig zag course. When a rope is inserted into the passage the series of direction changes severely limit the ability of a person to thread the rope through the passage.

Abstract: A combination manual and electric door opener having a bracket mounted to a door frame at a hinged side of the door. An electric motor is connected to the bracket and in turn connects to a threaded rod. A threaded nut is positioned around the threaded rod. Connected to the threaded rod is a cam arm. Upon engagement by the motor, the threaded nut rotates in a translational direction along the threaded rod. The cam arm is pivoted about a pivot point fastened to the top of the doorway and engages a closed door. The door is thus pivotally acted upon until it is in an open position.