Abstract: Measurements made with an electrical resistance sensor that is used for monitoring electrolytic plating are isolated from adverse effects of the strong plating currents flowing in the bath by momentarily disconnecting the resistive sensing element from the plating power source for a very short time interval during which resistance of the test element is measured.

Abstract: A bend arm assembly pivotable about a given axis of a bending machine and including a clamp die mechanism with a clamp die for coaction witha rotary bend die for clamping a workpiece for bending, the bend arm assembly including the clamp die mechanism then pivoting through the desired bend angle, as a unit, about the axis of the bend die. The bend arm assembly includes a back plate, with first and second guide slots, with the clamp die assembly mounted on the end of a clamp die block, which has laterally protruding guide bolts extending into the guide slots. A cam plate is secured to the clamp die block in depending relation, and is provided with a cam slot. A hydraulic cylinder driven cam actuator arm assembly includes interconnected parallel arms, which pivot about an axis, which is pivotally coupled to the structure about which the bend die pivots, with a cam follower rod extending through the cam slot.

Abstract: A waterstop splicing method and apparatus including a table having first and second coplanar aligned table top surfaces that simultaneously and equally, open and close by mechanical means driven by adjustable compression springs which provide equal forces to both tops. The table is equipped with two identical clamping arm assemblies in proximate relation to the facing edges of the two table surfaces, with one clamping arm assembly for each side, each of the clamping arm assemblies being provided with a bar having slidably and lockably assembled thereon a plurality of clamp devices, which are individually adjustable for pressure, width and cross-section of the waterstop strips for enabling securing of a waterstop to the table at any desired angle without puncturing. A removable recessed channel is provided in the middle of the table for supporting a thermoplastic welding iron having opposing heated parallel surfaces for simultaneously contacting the ends of a pair of aligned strips.

Abstract: A pipe holding collet is provided with an insert assembly that can be readily and quickly changed without the use of tools so as to adapt the collet to hold tubes of different sizes. The insert assembly is formed of a number of identical longitudinally separate segments, radially urged outwardly by compression springs and held together in a unitary assembly by a segment encircling retainer ring. The radially contractible and expandable assembly is releasably held within the bore of a master collet by means of an interengaging circumferential groove on the inner surfaces of the master collet fingers and circumferential ribs on the outer surfaces of the insert segments.

Abstract: A manual control valve for a remotely operated munitions magazine sprinkler valve employs a compact body, a pressure input port and first and second output ports to which are secured tubular seat housings, each carrying a valve seat. First and second poppets are slidably mounted in the tubular seat housings and are spring urged to closed position. One or the other of the poppets is pulled open by means of a handle operated rotary cam, which allows both poppets to be closed by spring and water pressure. A modified valve configuration provides a three-way valve.

Abstract: A portfolio presentation folder is made of a single blank sheet of cardboard for custom decoration and instant assembly by the user in a home, school or office environment. The blank sheet is separable into a pocket part and a front cover part so that the latter may be separately and independently decorated by standard office machines, desk-top publishing equipment, etc., or by hand. Both parts are provided with cutouts forming handle flaps and handle openings arranged for registry with one another so as to provide strong, multi-layered handle regions when the cover and pocket parts are connected to one another after the pocket part has been folded to form a pocket.

Abstract: A sliding door safe with an anti-intrusion locking mechanism, wherein a one or two door arrangement slides in a given direction on rails or ledges between first and second grooves of unequal depths in opposing walls of the valuables receiving chamber. The locking mechanism is carried by the door adjacent the deeper groove and includes a key actuable barrel with a lock arm carrying a blocking member, which, upon locking, is interposed between a position of one door and the adjacent portion of the wall of the chamber to preclude forcible sliding of the door or doors in the given direction. The locking assembly also includes a plate member of a bracket secured in spaced relation to the inner surface of the door in alignment with the lock arm and in proximate relation thereto to deter displacement of the lock arm under force of a punch applied to the lock. The bracket and the blocking member are deterrents to forcible entry and removal of the door.

Abstract: A safe having a valuables receiving chamber with a generally rectangular access opening with a first ledge arrangement for placement of two plate-shaped separable steel doors thereagainst, with first and second grooves formed on the opposite walls transverse to the first set of opposing walls. A second ledge arrangement is placed in parallel relation to the first for enabling slidable receipt of one door member therein, with the second ledge arrangement being dimensioned so that the ends thereof, along with the grooves retain both the first door member and a second door member. The width of the grooves and the distance between the two sets of ledges are of a dimension slightly more than the thickness of the door, with one of the grooves having a depth substantially greater than the other. A first door is dimensioned to occupy less than one-half the access opening, and the second door is dimensioned to occupy the majority of the remaining area.

Abstract: An optical probe for measuring various parameters of bent pipe comprises a substantially U-shaped housing defining a sensitive area across which light is projected from within the housing toward first and second light sensors mounted to the legs of the probe and having fields of view directed toward the inner portion of the probe. A pipe positioned within the sensitive area of the probe occludes sections of the fields of view of the sensors, which occluded sections have a direct relation to the position of the pipe with respect to the probe. Positions of the occluded sections of the fields of view defines the position of the pipe relative to the probe. By moving the probe in a scanning path along the pipe, a large number of measurements are made so that a best fit line will effectively average a large number of measurements to more accurately define three dimensional position and orientation of the pipe centerline.

Abstract: A power generating apparatus including a watertight sealed buoyant vessel of cylindrical form having an external stabilizer for directing the vessel into the current. Internally, the vessel is provided with a supporting structure on the axial centerline for rotatably supporting the axle or pivot shaft of a lever arm having a weight at the end thereof, the weight being supported on a circumferential rail assembly adjacent the upper end of the vessel. The weight is freely rotatable in either direction thorugh 360 degrees. The lower end of the shaft is coupled to a piston type hydraulic pump, which draws fluid from a reservoir, and pressurizes the fluid into a two stage accumulator, the controllable flow therefrom actuating a hydraulic motor coupled to an electrical generator, Fluid from the hydraulic motor then returns to the reservoir for further usage.

Abstract: A high sensitivity electroplating or corrosion sensor and method for sensing, employing a relatively strong, self-supporting electrically conductive substrate of high resistivity and a test coating that is electroplated directly onto the substrate. For corrosion monitoring, a test element of the sensor is formed of a thick, high resistivity substrate, such as stainless steel, upon which is electroplated a thin test coating of material to be tested in a corrosive environment. For many applications, the ratio of resistivity of the substrate to resistivity of the test coating is substantially equal to the ratio of thickness of the substrate to thickness of the test coating, which ratio may be about 40 to 1. The sensor may be employed in the monitoring of electroplating by immersing the stainless steel substrate in the electrolytic bath with the object to be plated and measuring the decreasing parallel resistance of the substrate and coating that is plated upon the substrate during a plating of the object.

Abstract: Automatic crimping apparatus for crimping contacts of different sizes on electrical wires is positioned at the side of a conveyor that moves successive wires to and from alignment with a crimping station which includes a shaker bowl furnishing contacts to a sender station. The sender station sends the contacts one at a time via a pneumatic line through a hollow chuck and collet to seat the barrel end of the contact end upon a contact locating seat that is precisely positioned within a cam operated multi-pin crimper. The contact end receiving seat is apertured and recessed in one end of a funnel assembly and locating structure having a wire receiving and guiding funnel at the other end to define a wire guide path in alignment with the apertured contact end receiving seat. With a contact end positioned on the receiving seat, a portion of the wire receiving barrel of the contact is in the operative region of the crimper, with the other end being firmly grasped in the collet.

Abstract: A spacer assembly including a spacer with a body having a base portion with a generally centrally disposed support post portion, one end which is formed as a planar surface with a centrally located generally concave saddle portion configured for receiving a reinforcing bar, the planar surface being provided with apertures therethrough on both sides of the saddle. A clamp member is provided for simultaneously securing mutually perpendicular rebars to the chair, the clamp member including a generally U-shaped lower portion, with the depending arms thereof in spaced generally parallel relation for engaging a first bar within the saddle. A pair of generally identical hook arms extending upwardly from the bight portion, the hook arms being oriented for engaging a second rebar in an orientation perpendicular to a first rebar engaged within the saddle portion.

Abstract: The vehicle toy includes a split central roller with end rollers on either side of it, a platform between the segments of the split central roller, side members along the ends of the rollers, and vertical members leading to handrails above the rollers to be grasped by the person standing on the rollers to manipulate the vehicle. The central roller is positioned below the end rollers and the vehicle is symmetrical, allowing either end roller to be selectively engaged with the supporting surface, along with the central roller.

Abstract: An orthodontic apparatus is disclosed comprising a divider like device with three arms. The outer arms operate in normal fashion while the central arm is coupled to the adjusting wheel so that its relative position with respect to the outer arm is constant. The central arm has a bracket retaining reverse tweezer arrangement for holding and positioning orthodontic brackets on teeth. In use the outer arms are located on either side of the tooth and the central arm locates the bracket in the correct position for fixing to the tooth.

Abstract: A nebulizer providing a moistened breathing mixture of aerosol for inhalation therapy is provided with an improved heater having a single heating element arranged in a heating housing, configured so as to support and heat the liquid in the nebulizer container and to also heat the aerosol discharged from the nebulizer so as to most efficiently utilize the heat energy and to most efficiently transfer heat energy from the heater to the aerosol. Passage of the aerosol through and accumulation in the relatively long annular accumulator that circumscribes the heater collects rain out from the aerosol and re-vaporizes the collected liquid to add further moisture to the aerosol.

Abstract: The invention provides for tissue fixation by subjecting the tissue to the vapor of a fixative while the tissue is unstressed. The tissue may be rotated during fixation to avoid collecting condensed fixative at localized areas of the tissue. Intermittent rinsing of the tissue during fixation is possible. The concentration of fixative in the vapor may be varied, increasing after an initial period. Specific rinsing and fixative solutions are disclosed.

Abstract: An auxiliary rifle sight for attachment to the telescope mounting elements of a rifle, and having front and rear sight devices, which, along with couplers, are dimensioned, configured and arranged for being received within and/or coaction with the existing geometrical form or shape of the front and rear portions, respectively, of the telescope mounting elements of the rifle. The rear sight device is configured for attachment to the rear portion of the telescope mounting element, such as a telescope base, and, in one embodiment, includes a block member with T-shaped cutouts in opposing sides thereof for coaction with T-shaped coupling members having the cross-arms thereof fitted within the slots, with the leg portion thereof provided with an arcuate segment having a convex outer surface for coaction with a matingly configured concave shoulder portion of a screw, tightening of the screws into the base camming the block into intimate contact with the rear scope mounting element.

Abstract: A binder strip for home or office use in binding document pages includes a binder sheet having a full back cover section and a narrow front cover attaching flange section with a spine section interposed between the two. The spine section is provided with a number of closely adjacent beads of hot melt glue and the attaching flange section has a strip of peel-off pressure sensitive adhesive affixed to a free edge thereof. A front cover for the binder is totally separate from the binder and initially may not even be a part of the binder. The front cover is processed by any suitable home or office copier, embossing, foil stamping, color printing or like machine capable of custom processing a single sheet of ordinary document size. The processed cover is then attached to the attaching flange by means of the pressure sensitive adhesive.