Abstract: Disclosed is a spotweld removal tool adapted for removing spotwelds which join two or more layers of sheet metal to thereby free the sheet metal layers from one another. The spotweld removal tool comprises a split point twist drill having a central cutting tip (38) having leading edges (44 and 46) and defined by flared walls (56 and 58), recessed surfaces (64 and 66) adjoining the flared walls and peripheral cutting flats (40 and 42).

Abstract: A hose clamp having a pair of jaws between which a hose is clampable. One jaw is a rotatable cam jaw that automatically applies a greater clamping force under the influence of differential pressure in a hose on opposite sides of the jaws, and under the influence of impending sliding movement of the clamp along a hose.

Abstract: Polyurethane foams, varying in nature from soft to hard, tough skin and a process for their preparation comprising reacting approximately equal volumes of substantially liquid mixtures from a two part dispensing system, Part A comprising a substantially liquid, stable mixture of an isocyanate and an epoxide and Part B comprising a substantially liquid mixture of a polyether polyol, a catalyst and an accelerator.

Abstract: Control apparatus for selectively generating and converting control input information into controlling output for position and movement of controlled apparatus. The controlled apparatus includes a fluid discharge device comprising a nozzle disposed for vertical and horizontal movement.

Abstract: A load indicator partly collapses under a predetermined compressive load to provide visual and tactile indications that such predetermined load has been reached or exceeded. The indicator has a longitudinal axis, opposite ends, an outer surface and a central cylindrical hole opening outwardly at the opposite ends. A circumferential groove in the outer surface intermediate the ends divides the indicator into first and second integral parts that move toward one another under a predetermined compressive load by collapsing the groove. A recess surrounds the hole at one end of the indicator so that the surface area of the one end is substantially smaller, and spaced outwardly further from the longitudinal axis, than the surface area of the other end.

Abstract: Apparatus for minimizing water hammer and/or shock waves resulting from closure of a valve member disposed for movement into and out of closing arrangement in valve means included within a fluid flow system. The apparatus comprises a piston and cylinder arrangement having a circular path of travel, the cylinder being formed in part as an incised channel means in a body means, within which body means a rotatable sleeve means is disposed in a longitudinal bore. The inner portion of the cylinder is the outer surface of the rotatable sleeve, and a fluid chamber is formed by said combination. The piston means projects outwardly from the sleeve and is disposed within the channel means, so that the piston means sweeps the cylinder volume as the sleeve is rotated. An adjustable orifice is provided in the cylinder means to constrict the flow of fluid in said cylinder on rotation of the sleeve.

Abstract: Ball and socket members having cooperating fluid flow passages therethrough are connected for universal pivotal movement by a connection located entirely interiorly of the members within the fluid flow passages therein. A brake band interposed between the ball and socket members is selectively operable to releasably secure the ball and socket members against movement relative to one another.

Abstract: A constant pressure discharge nozzle having a pressure-responsive baffle head assembly for varying the size of the discharge opening in response to fluid pressure in the nozzle, and having adjustable stop means, controlled from the exterior of the nozzle, for limiting the pressure-responsive opening movement of the baffle head to selected positions intermediate the minimum and maximum pressure-responsive positions, while still permitting pressure-responsive movement of the baffle head between a selected intermediate position and the minimum flow position.

Abstract: A constant pressure nozzle having a pressure-responsive baffle head movable toward and away from a throat element so as to define a discharge orifice. The throat being movably mounted for retraction by external control means to a debris-flushing position, but means being provided to maintain the throat in a fixed position during normal operation of the nozzle.

Abstract: An incandescent illuminating device having an antifragility coating covering at least a substantial portion of the glass envelope, the antifragility coating comprising a mixture of a relatively clear, resilient heat-stable polymer capable of adhering to glass and a plurality of light-transmitting, impact-absorbing particles, which are preferably small, hollow, heat-stable, frangible microspheres. The particles, preferably hollow microspheres, constitute from about 20% to about 60% by volume of the cured antifragility coating and are essentially colorless, have a high degree of light transmissivity, and have a low density and a diameter less than about the thickness of the antifragility coating. The particles act as a sacrificial material to absorb an impact giving the coating antifragility properties.

Abstract: An automatically regulated constant-pressure fire-fighting nozzle having a pressure-responsive baffle element for adjusting the size of the discharge orifice in response to supply pressure changes. An upstream-directed baffle extension in opposition to the direction of fluid flow for creating a low-pressure zone adjacent said baffle element in response to high supply volume to modulate the effective displacement force acting on the orifice-regulating baffle element. The extension also serving to adjustably restrict the fluid flow passage to said orifice in response to pressure-induced displacement of said baffle element.

Abstract: Permanent repair of a rusted pinchweld in the windshield securing channel of an automobile is effected by replacement of the rusted portion with a highly malleable repair panel of novel design. The repair panel has a generally Z-shaped cross section and dimensions compatible with the pinchweld of an automobile. The panel is secured to unrusted pinchweld by any suitable means and rendered leakproof by suitable body repair procedures. The reconstructed pinchweld offers a base for windshield replacement closely approximating the original construction. Further degeneration is checked by rendering the entire repaired structure leakproof with proper installation techniques.

Abstract: A plurality of circumferentially spaced teeth are positioned in a predetermined manner on the end of a pattern-forming sleeve for a liquid discharge nozzle. Each of the teeth is provided with a stream-deflecting surface which is disposed to deflect portions of the discharge stream angularly into intercepting relationship with each other to increase the liquid particle breakup in the stream and improve the uniformity and homogeneity of the stream pattern.

Abstract: A liquid discharge nozzle having a pressure-responsive movable baffle element overlying the discharge opening and displaceable by fluid pressure in opposition to spring-loading. An open-ended cylinder houses a piston out of the path of liquid discharge flow, which piston presents a pressure surface in opposition to the pressure responsive surface of the baffle to modulate the effective action of the spring as the discharge volume increases.

Abstract: A non-aqueous sealant composition particularly adapted for use in the installation or sealing of fixed glass in vehicles. The composition has a thermoplastic rubber base, suitably modified by plasticizers, tackifyers and a cationic surfactant to provide a sealant system which displaces water from a wetted substrate to which it is applied, permitting it to be utilized under either wet or dry conditions.

Abstract: A swivel coupling having two independent inlets, each communicating with a separate outlet for connection to a dual-flow discharge nozzle. Both outlets swivel about a common axis relatively to the inlets and the pair of inlets are free to swivel about a common axis at right angles to the first axis. One of the inlets is "floating" so as to have both rotational and longitudinal movement for adjustably connecting it to the discharge nozzle.

Abstract: A fluid flow valve, particularly of the ball type, with an improved seal and mounting adapter arrangement to permit the valve to be uncoupled in place and swung out or completely removed for repair of maintenance or replacement without disturbing or disconnecting any other portion of the fluid flow system. The valve also includes an improved valve modulating control arrangement which includes frictional locking means coupling the valve control mechanism to the valve member for flow adjustment; but acting to lock the flow adjusting elements and the valve member itself against any significant change in flow control position in response to flow pressures tending to cause an angular shift or rotation of position of the valve element.