Abstract: A single barrel mixing syringe in which one material such as a liquid is stored in the bore of the syringe barrel and another material such as a powder is stored in a chamber formed in a resilient piston head which forms not only the powder containing compartment but also the seals preventing leakage of liquid from the syringe. The two chambers are separated by a wall which may be displaced in one embodiment by differential pressure during movement of the piston portion of the syringe and in another embodiment by a separate plunger which displaces the wall.

Abstract: A reversible, side mounted rearview mirror for vehicles adapted to be mounted at the exterior of the vehicle and having opposed reflective surfaces one of which is suitable for daytime use and the other which is suitable for nighttime use. The mirror is supported within the housing for rotation about a horizontal axis and for swinging movement about a vertical axis at one end of the mirror to provide a full range of adjustment and to permit selecting one or the other of the reflective surfaces.

Abstract: A method and apparatus for making a housing member with a projecting bracket receiving adaptor from a sheet of flat material in which the material is formed in progressive dies by displacing material in the direction of die movement and also transversely thereof by a die arrangement movable into engagement with a portion of the material displaced in the direction of die movement to confine that portion while permitting displacement of the unconfined portion transversely.

Abstract: A musical instrument of the percussion type which includes a body member having walls converging from a relatively large open end so that the internal volume of the body member diminishes from one end of the instrument to the other. The instrument is played by striking its top surface with the hands or sticks and sound is amplified and emitted from the open end.

Abstract: A welding machine for automatically welding abutting workpiece portions in which the workpiece portions are aligned by a gauge and after being clamped in such a position, the gauge is automatically removed and the clamped ends are moved into abutting relationship to each other to be welded together. After the weld is completed the gauge is moved automatically to engage and eject the welded part and at the same time position the gauge and place the machine in condition to receive the next part to be welded.

Abstract: A tie pin for holding the wide front and narrow rear portions of a tie relative to each other and to a shirt by way of a pin attached to the rear folds of the tie and flexible members extending to the shirt front to limit but still permit relative movement of tie portions and shirt and in which the arrangement remains concealed by the tie.

Abstract: A double diaphragm, two stage vacuum break device in which the vacuum break plunger operates in a first stage in response to movement of one diaphragm assembly and in a second stage in response to movement of a pair of diaphragm assemblies. Metering valves are employed to cause delay of movement of the vacuum break devices in each of its ranges and delay can be eliminated from a selected one or both of the stages of movement by omitting a valve member. The stages of movement are under the control of separate sources of vacuum, a selected one of which may be under control of a temperature responsive valve. The range of movement of the plunger in its two stages of operation may be adjusted by mechanical means or a member responsive to temperature.

Abstract: A portable seat may be folded to a transport position by disposing the seat and support member in generally parallel relationship to each other and in a plurality of select positions longitudinally of each other, the entire seat assembly being suitable to transport by hanging from the belt or the like of a wearer. The seat is provided with a removable prong which pierces the ground to support the seat assembly when it is not occupied and also may be removed for the purpose of utilizing the seat on hard surfaces such as those encountered indoors.

Abstract: A method of forming annular rings having portions of the ring material disposed radially of the ring axis from strips of flat material by forming cylindrical work-pieces from elongated strips of material with the ends of each of the strip being welded together to form a cylindrical work-piece having its material extending axially of the ring, supporting spaced annular portions at the inner circumference of the work-piece, and displacing a portion intermediate the internal annular portions of the work-piece radially outwardly while the outer perimeter of the work-piece is unsupported.

Abstract: A fence wire mount and insulator device adapted for mounting on a metal fence post of T-shaped cross section in which wire is supported in spaced relationship relative to the fence post by a bracket member which engages the fence post and is shaped to accommodate a variety of configurations and dimensions. The bracket which engages the fence post is provided with a curved offset portion which permits elongation of one portion of the bracket and permits initial easy insertion of the fence post relative to the bracket.

Abstract: A visor and vanity mirror assembly in which the vanity mirror is illuminated through electrical circuitry mounted on the back side of the mirror.

Abstract: A dashpot assembly having a single annular diaphragm the inner periphery of which forms a valve movable relative to a metering passage between chambers formed at opposite sides of a plunger assembly in the dashpot. Upon movement in one direction the valve element requires air to pass through the metering passage and upon movement in the opposite direction the valve moves out of engagement to permit free flow between opposite sides of the plunger. The dashpot incorporates a ring element which serves to maintain the metering passage free of obstructions and dirt and which extends the effective area of the diaphragm.

Abstract: A method of forming annular rings having portions of the ring material disposed radially of the ring axis from strips of flat material by forming cylindrical workpieces from elongated strips of material with the ends of each of the strip being welded together to form an endless cylindrical workpiece having its material extending axially of the ring and displacing a portion intermediate internal annular edge portions of the workpiece radially outwardly while the outer perimeter of the workpiece is unsupported. When the finished annular ring is to have all of the material in the annular edge portions extending radially, the inner annular edge portions are unsupported and when the annular edge portions are to extend axially in the finished ring, only the spaced inner annular surfaces of the edge portions are supported.

Abstract: A visor assembly including a vanity mirror supported on a visor in a one piece housing including a frame and hinged cover. Protection against flying glass fragments in the event of shattering of the mirror is provided by the cover and also by a flexible backing on the mirror which also holds a mounting arrangement for fastening the mirror and housing to the visor.

Abstract: A glare shield adapted to be positioned within the passenger compartment of a motor vehicle adjacent to the windshield to absorb and intercept light rays in which the glare shield is made up of flexible material forming compartments containing ballast material acting as a base to support a relatively flexible shield member which may be deflected to various positions relative to the base member.

Abstract: A wheel trim assembly having a plastic trim portion with a plurality of metal retaining members attached to the plastic portion for securely attaching the assembly to a vehicle wheel flange. The metal retaining members including circumferentially spaced hooks for engaging opposite edges of the plastic portion and spring clips for engaging in recesses in the plastic portion to secure the retaining members to the wheel trim.

Abstract: A milling tool having multiple parts to facilitate tool change in which detachable metal cutting edges are mounted on an annular ring supported from an adapter mounted on the milling machine. The adapter includes a support plate for supporting the cutting ring and a pilot member which is biased against the cutting ring to insure that it is centered relative to the axis of rotation.

Abstract: A rearview mirror assembly for motor vehicles having a plurality of like mirror sections which are supported relative to each other and interconnected so that movement of any one of the mirrors about a generally vertical pivot axis results in similar movement of the remaining mirror sections about corresponding axes so that the sections remain parallel to each other. In their adjusted position about their vertical axes, the plurality of mirror sections may be adjusted as a unit about a generally horizontal axis.

Abstract: An improved heating device such as a heating pad comprising a fabric base and insulated resistance wire mounted in said pad, preferably in a backward and forward sinuous pattern, at least one thermostat connected in series with the resistance wire element at both ends by means of lead wires of a low resistance metal such as copper, each thermostat being positioned intimately with a span or straight portion forming part of a sinuous loop of resistance wire, a switch connected in series with the resistance wire, and a plurality of bars of a metal such as lead mounted in the pad. In an improved embodiment the insulation on the resistance wire is formed of a plastic material able to withstand the elevated temperatures attained by the resistance wire during operation.

Abstract: A wheel and grease cap combination in which a plastic covered portion on a vehicle wheel is provided with a radially inwardly facing annular groove positioned adjacent to an opening in the wheel for receiving the grease cap and radially inwardly of the bolt circle for receiving bolts to attach the wheel to the axle hub. The groove receives a plurality of attaching means formed on the grease cap which deflect radially inwardly upon attachment and detachment of the grease cap. The attaching portions firmly engage the bottom of the groove to prevent both axial and rotational displacement of the grease cap relative to the wheel.