Abstract: A chandelier that has, in addition to its conventional illuminating purpose, an audio system such as a stereophonic radio or a security system incorporated into its structure, the former to furnish, for example, music, while the latter has as its purpose to warn of unwanted intrusions and disasters, for example, such a fires, by means of stimulus-responsive warning signals. Control, sensing and energizing means may be provided within a common housing. The modular construction of the device makes assembly and disassembly convenient without the use of special or any other kinds of tools.

Abstract: In a manufacturing operation, a stretched diaphragm is used to support a quantity of small parts which are individually secured to the diaphragm in predetermined spaced relation. An individual part is elevated relative to the remainder of the array, for purpose of inspection or test, by displacing and even further stretching the associated portion of the diaphragm; then it is permitted to return to its original place in the array. When the parts are to be incorporated into manufactured assemblies each selected part is again elevated by displacing and stretching the associated portion of the diaphragm. The method is applied to the manufacture of microminiature electric circuits in which a flat wafer is first formed, and the wafer is then cut into a number of chips which must be individually tested and then they are incorporated into circuit assemblies.

Abstract: In securing a semiconductor chip to a substrate of ceramic material or the like, a de-focused laser beam having a wave length to which the substrate is substantially opaque is directed over a relatively large area of the reverse side of the substrate. Heat generated at the reverse side of the substrate then flows through the substrate to heat bonding material that is placed between the engaging surfaces of the chip and substrate. In this manner direct heating of the chip is avoided or minimized, and damage to both chip and substrate is also minimized.

Abstract: A mechanism for locking a dental model in a desired position of adjustment includes a sphere, an elongated member extending through an opening in the sphere, and means for gripping the sphere in a selected rotational position while at the same time gripping the elongated member in a selected longitudinal position.

Abstract: A variable focus flashlight has a cylindrical flashlight body and a separate flashlight head which is threadedly secured to the body. A bulb is supported in fixed relation to the body, and a reflector is supported in fixed relation to the head. Rotation of the head changes its longitudinal position relative to the body, hence moving the reflector either forwardly or rearwardly relative to the bulb and thereby adjusting the focus of the flashlight beam.In order to retain the selected focus adjustment, an expansible spring is disposed partly inside the flashlight body and partly inside the flashlight head, the corresponding ends of the spring being seated in respective ones of those members. The expansive force of the spring biases the interengaging threads of the flashlight head and body, producing a substantial frictional force so as to retain the desired rotational position of the head.

Abstract: An improved revolver hand and hand spring which permits the revolver to accommodate a multiplicity of approximately equal hand lengths.

Abstract: A switching apparatus contained inside box B consists of standard electrical units, and arranged in a way which is particularly advantageous for the purpose at hand. One of these units is a circuit breaker box containing two interruptible circuits, and having a mechanical reset switch. There are also a pair of magnetic contactors. Each magnetic contactor is used for switching a single conductor, and includes a pair of contact plates which are normally open so that current cannot pass through them, together with a coil which can be energized for causing the plates to close. In addition to the circuit breaker box and the magnetic contactors, there are heavy copper conductors, or buss bars, which make the necessary connections between the circuit units.

Abstract: A mechanism for quickly and precisely positioning one body relative to another body, which relies upon three support points between the two bodies. At a first point a hemispherical surface is received in an opening having the form of a trihedral pyramid. At a second support point a hemispherical surface is received in an opening having the form of a diahedral prism. At the third support point a rigid sphere held in loose confinement engages a flat surface.

Abstract: A simulated bright brass finish is produced by electroplating onto a metal base a gold-silver alloy coating having a thickness of the order of one ten-thousandth of an inch. The gold content of the coating is about five parts by weight for each four parts of silver. The surface of the coating is polished.

Abstract: An ornamental snap-together light fixture in which spring means associated with a bulb socket not only holds the socket in a metal cup, but also secures the metal cup to a base member. In addition, the metal cup has a circumferential ridge which is spaced a substantial distance from its bottom end, and an ornamental member positioned upon the base member and about the cup is held in place between that ridge and the base member, through indirect action of the spring means of the socket.

Abstract: A firearm has an external hammer that is manually cocked in order to rotate the trigger to its ready-to-fire position. The hammer has an elongated vertically extending recess formed therein, such that when the hammer is adjacent the firing pin, an end portion of the recess is juxtaposed to the firing pin, and the hammer does not engage the firing pin. An elongated safety member is disposed within the recess and movable between retracted and extended positions, the extended position being such that the hammer may drive the safety member into engagement with the firing pin, and the retracted position being such that the safety member cannot engage the end of the firing pin but may lodge beneath its under side. A cam carried by the trigger cooperates with the hammer for controlling the position of the safety member. During firing the safety member swings with the hammer, and the firing pin is actuated by the combined kinetic energies of both.

Abstract: A halter for horses wherein the halter includes a headstall composed of a strap encircling the forward portion of the neck at the head, the strap being provided with a conventional buckle or other separable securing device, and the encircling strap of the headstall also having, operatively coupled in parallel with the conventional buckle, a separable fastener which is disengageable under the influence of a predetermined amount of force tending to separate the encircling strap portions.

Abstract: A noodle making machine including a cylindrical dough magazine with a powered plunger therein and an apertured expressing die on the end of the dough magazine, wherein the expressing die can be removed from the end of the cylindrical magazine, the magazine removed from the remainder of the machine to expose its interior and the surface of said plunger and its supporting rod, the several parts being quickly and readily separable for quick and easy cleaning to comply with Health Department rules and ordinances.

Abstract: A flashlight is equipped with rechargeable batteries inside its main housing. A removable tail cap contains an electronic circuit for recharging the batteries, the circuit being actuated and energized by means of a switch assembly which is accessible through the outer end of the tail cap.A mechanical isolation means is included for protecting the electronic circuit from being damaged by any physical movement of the batteries that may occur.One embodiment of the invention also includes a spare bulb holder assembly which also constitutes the mechanical isolation means.

Abstract: A motion picture printing machine is equipped with separate printing modules for the picture track and the sound track. Each module can be removed from the machine. It is therefore possible to use one set of printing modules for printing one size of film, and then to change to a different set of printing modules for printing a different size of film.More specifically, the machine has a vertical frame member with drive and control mechanisms that are supported on its rear side, while the removable printing modules are attached to its front side. Each printing module includes at least one driven sprocket that is carried on a sprocket drive shaft. The sprocket drive shaft is aligned concentric with, but not directly attached to, a driven shaft that is rotatably supported on the rear side of the frame member. The two plates of a friction clutch are carried on the adjacent ends of these two shafts. A means for activating the clutch is a permanent part of the machine carried on the rear side of the frame member.

Abstract: A shoe sole structure is provided with an upper surface adapted to receive and support the entire foot of the wearer, the sole structure being resilient throughout the full length of its under surface, having a toe portion forwardly of the metatarsal arch region which is easily bendable, but having a relatively stiff and rigid upper surface from the metatarsal region rearwardly to the heel. The sole structure has an elevated central pedestal under the instep region and a separate impact pad underneath the heel, the heel impact pad being very resilient while the central pedestal has limited resiliency. In a running action the heel impact pad absorbs an initial impact with the ground, the central pedestal then provides a rolling support for the entire foot, and finally the bending of the toe portion of the sole structure provides an effective and well-controlled take-off.

Abstract: A resilient inner sole for a shoe is integrally formed from resilient material into a generally flat sheet member. The sheet member has a flat under surface with a plurality of openings which are upwardly enlarged to form air pockets, and the resilient material of the member extends over and thereby encloses the upper sides of the air pockets. When an impact is received upon an upper surface of the member, the member compresses, and air flows from the air pockets outward through the associated openings.

Abstract: .[.The present invention relates to certain novel and valuable improvements in sporting shoes used for running or jogging..]..Iadd.A sporting shoe has a relatively rigid sole whose longitudinal center portion is convexly curved in a longitudinal direction to form a pedestal about which the shoe rotates. It also has resilient sole portions at the heel and toe. .Iaddend.