Abstract: A drill stand for a hand-held drilling machine (30) has a length-variable support (2, 4), on which a clamping chuck (20) for the drilling machine (30) is mounted in a displaceable manner. A spring (50) presses the drilling machine (30) in the advancement direction. The drilling machine (30) is raised, via the spring (50), by means of an adjustable adjustment unit (40) on the support (2, 4), and the spring (50) is compressed in order to produce the advancement force.

Abstract: An afterbirth retaining device has a container for supporting a placenta and at least one clamp for securing an umbilical cord thereto. The container also has end walls, one of which has a handle and an adjacent handle shield. The retaining device is utilized by an individual to hold the afterbirth of a newborn child and safely permit the drawing of blood from the umbilical cord without accidentally sticking the individual with perhaps diseased or drug-containing blood.

Abstract: A novel child safety seat assembly for utilization in an automotive vehicle is comprised of a base sub-assembly having a pair of arcuate side rails, of a seat sub-assembly slidably supported on the base sub-assembly and having a pair of arcuate side rails engaged with the base sub-assembly arcuate side rails, and a collapsible energy absorber element functionally positioned intermediate the base sub-assembly and the seat sub-assembly.

Abstract: A pulling or lifting apparatus for a flat, flexible strap connected to a load operates with two pairs of reciprocating jaws. The pairs of jaws have flat gripping surfaces corresponding to the flat faces of the flexible flat-profiled strap. Two guide members are disposed along each of the two broad faces of the strap and follow its longitudinal direction in order to prevent the strap from moving to form a fold or loop between the two pairs of jaws when these approach one another.

Abstract: A self-centering spring hanger assembly has a housing with a top wall, a bottom wall and a central vertical wall therebetween. A coil spring adapted to receive a hanger rod is mounted on the bottom wall. A spring cap is located on the top of the spring. The spring cap has a plurality of concentric depressions adapted to receive a fastener.

Abstract: A direct support type of rigid railbound railroad trackwork frog assembly is provided with a core frog casting, a pair of compliant, non-metallic spacer elements contacting laterally opposed sides of the core frog casting, a pair of wing rails respectively contacting the compliant, non-metallic spacer elements, and a threaded bolt and nut fastener joining the casting, spacer elements, and wing rails into a rigid unitary structure.

Abstract: Methods and apparatus for the electric arc welding of metal workpieces utilize a current comprised of squared waveform high-amplitude current pulse groups alternated with squared waveform low-amplitude current pulse groups, the current pulse groups being developed or developed and algorithmically varied in response to detected welding arc voltage/current condition changes and with respect to pulse group periods, pulse group peak current amplitudes, pulse group repetition frequencies, and pulse group current rise/fall rates for particular applications.

Abstract: A drinking container is provided having a liquid containing portion and a slidably displaceable sleeve member. The slidably displaceable sleeve member is located adjacent the liquid containing portion. The liquid containing portion has a bottom surface. The sleeve member has a sidewall and a bottom surface. The sleeve member in a first position has its bottom surface spaced apart from the bottom surface of the liquid containing portion a first distance, while the sleeve member in a second position has its bottom surface spaced apart from the bottom surface of the liquid containing portion a second distance. The drinking container preferably has an upwardly projecting wall having at least one engaging member. Additionally, the sleeve member has a plurality of channels formed in its sidewall. The drinking container is formed having a first wall member and a second wall member, such that the sleeve member is retained between the first and second wall members.

Abstract: A multi-piece jack handle having selectively assembled and disassembled elongated rod sections is provided with a novel molded retainer sleeve having integral prong elements in one elongated rod section that are selectively engaged and disengaged from co-operation with an integral retention collar in another co-operating rod section.

Abstract: A novel brake shoe assembly is provided with a brake shoe table having a generally arcuate friction material support surface, a friction material preform supported by the brake shoe table friction material support surface and having a peripheral side groove, fixed retainer clips mounted on the brake shoe table and engaging the friction material form groove, and relatively rotatable retainer clips removably and threadably mounted on the brake shoe table, engaging the friction material form groove, and imparting additional clamping forces to said friction material preform when being tightened and rotated counterclockwise relative to the brake shoe table.

Abstract: Press-type apparatus for thermally bonding thermoplastic sheet material workpieces is provided with a pair of opposed platen assemblies which each include an inflatable set of compliant diaphragm members, a pair of opposed heat sources which may be brought into and retracted from contact with the diaphragm members, and a source of pressurized fluid for inflating the diaphragm sets and for cooling the heated workpieces. The method for operating the press-type apparatus basically involves both heating and cooling the assembled workpieces while they are simultaneously being retained in a condition of being clamped by the inflatable sets of the diaphragm members.

Abstract: A training manikin for use in connection with cardio-pulmonary resuscitation procedure training is provided with an airway tube element insert that is automatically folded to restrict the flow of air from a mouth/nose element insert unless the manikin head face and chin with included mouth/nose element insert is initially properly pivoted to clear the airway tube element for the passage of air.

Abstract: A railroad trackwork frog assembly is provided with a pair of wing rail components, with a centrally positioned body component comprising an integrally formed V-shaped point element having a pair of gauge lines, an integrally formed pair of wing elements having a pair of guard lines, and integrally formed flangeways separating said point element from said pair of wing elements, and with fasteners joining the body component wing elements to the wing rail components in a manner whereby the point element gauge lines are truly parallel to the wing element guard lines and are uniformly separated from said wing element guard lines uniformly by a distance of approximately 13/4-inches.

Abstract: A friction brake subassembly is provided with a metallic backing plate element and with a friction material brake lining element integrally adhered to the backing plate element, the brake lining element friction material composition comprising friction material particles and an epoxy resin binder preferably in the approximate range of from 10% to 40% of the friction material composition total weight. Methods are disclosed for integrally bonding the brake lining element to the backing plate element.

Abstract: A railroad trackwork spring frog installation having a conventional wing rail with attached wing rail horn fitting is provided with an improved co-operating hold-down comprising a weld block element component, a separate, readily replaceable, riser component supported by the weld block component, a housing component positioned over the wing rail horn fitting and supported by the weld block component, and bolt-type fastener devices joining the hold-down components into a unitary structure.

Abstract: A hand tool for aligning misaligned adjacent ductwork sections having return flange terminations is provided with a sheet metal base area having integrally formed side flanges and an integral V-shaped notch element which functions to align the ductwork sections for subsequent installation of a flanged cleat interconnection when the hand tool is advanced manually to its final position.

Abstract: An improved interlock panel for incorporation into a cargo space divider assembly is provided with a pair of stepped grooves throughout its length to facilitate manual insertion and manual removal of the panel into cooperation with another interlock panel, and with a retention clip member that restricts panel tilt about its base and thereby improves panel vertical stability.

Abstract: Apparatus and method steps are provided for accomplishing the pressurized filtration of a slurry mixture to separate a liquid solvent constituent from a particulate solids constituent having particles with varied particle average diameters. The apparatus makes use of a novel generally-helical array of stiff-wire brush bristles contained within, and retained in position by, the frictional engagement with the interior surface of a cooperating tube-like, open-ended array peripheral enclosure.