Abstract: A transaction card having in it a semiconductor microcomputer with data storing capability is inserted into a receptor having circuitry for interacting with the microcomputer. Operating power and a clock signal for the microcomputer are transferred from the receptor to the card via an inductive coupling between a coil and magnetic core in the receptor and a coil and ferromagnetic member constituting a flexible wafer inductive device ("FWID") in the card. For purposes of data transfer between the card and receptor, the card includes two additional FWIDS which, when the card is in the receptor, are inductively coupled with corresponding coils in the receptor. One of such additional FWIDS is used to transfer data from the microcomputer in the card to a microcomputer in the receptor, while the other additional FWID is used for data transfer in the opposite direction between these two microcomputers.

Abstract: A polyhedral ring mirror is manufactured by molding a synthetic resinous blank having in it a cavity in the form of a four-sided pyramid. The wall surfaces of the cavity are metallized to make them light reflective. The blank is then sliced through in a plane normal to the cavity axis to sever from the blank a minor portion, and to leave behind a major portion in which the form of the cavity has been converted into a truncated pyramid having opposite its original opening a smaller opening. The modified blank with the doubly open cavity is placed, smaller opening down, on a printed wire wiring board around a rectangular electrical component on the board to permit visual inspection from a single viewing point above the component, of all of its sides. The size of the large opening of the cavity can be adjusted by slicing away another portion of the blank.

Abstract: A connector assembly comprises an electrically nonconductive post (300) having a plurality of channels (310) in its upper surface for receiving individual insulated conductors. The upper surface of the post also includes slots (320) extending orthogonal to the channels (310). The slots (320) receive legs (220) of an inverted U-shaped contact (200), the legs comprising slotted beams (222) that depend from a base (210) of the contact. The contact base (210) is captured on a screw terminal (100) which threads onto the upper surface of the post (300). The screwing in of the screw terminal (100) causes the slotted beams (222) of the contact (200) to penetrate the insulation of the conductors placed in the channels (310) to electrically interconnect the conductors, contact (200), and screw terminal (100).

Abstract: At least three private branch exchange program-controlled telephone equipments (PBX's) in different countries form a system in which the PBX's are interconnectible by direct tie lines, tandem lines or direct distance dialing lines. Each PBX is equipped with the feature of Automatic Route Selection ("ARS") which, when a subscriber at an extension of a one such PBX in one country dials the full string of digits used for an international call to a remote station in another country, selects, out of the tie lines, tandem lines and direct distance dialing lines outgoing from such PBX, an idle one of such lines providing for such call a transmission route yielding the least cost for completing that call. Each such PBX includes the improvement feature of modification of the code signals produced by the dialing of such string of digits to cause outpulsing from such PBX of only those of such signals which are necessary for completion of the call over the transmission route selected therefor by ARS.

Abstract: A vertical support shaft projects down from the underside of a telephone booth shelf and supports the inner end of an arm swivelable horizontally about the shaft. The outer end of the arm is hingedly coupled to a telephone directory binder so that the binder is pivotable about a horizontal axis at such end and transverse to the arm's centerline. The binder's centerline is parallel to a reference line passing through such axes at an acute angle b. When the arm is on "in" position the binder is stored beneath the shelf in primary alignment with its width. When the arm is pulled out and the binder is pivoted out, up and over, the binder goes through a motion equivalent to an angular displacement of 2b to come to rest face-up with an alignment parallel to its former widthwise alignment.

Abstract: There is disclosed a multiple electrical contact switch which has a comb block whose teeth are inserted into receptacles of a mounting block thereby wedging pairs of electrical spring contacts, which are also inserted into the receptacles, between the teeth and the receptacles without bending the spring contacts. The electrical contacts extend from the receptacles and are activated by an operating card, which engages the extended portions of the electrical contacts to open or close electrical conduction paths. When pressure on the spring contacts from the actuating card is released, the spring contacts then move the operating card to an original position wherein the sequence of open and closed contact springs is as if there were no contact with the operating card and the contact springs.

Abstract: An electret sheet is clamped on an apertured support around the aperture so that a sheet portion stretches all across the aperture. A tension-producing ring is advanced against the sheet portion normal to its stretch direction to produce progressively increasing tension therein. Concurrently, a loudspeaker on one side of the sheet emits constant-amplitude sound waves of fixed frequency and directed against the sheet portion to cause it to vibrate at that frequency. When, because of the increasing tension in the sheet portion, it's vibration amplitude rises to a predetermined value at or near resonance, the advance of the mentioned ring is ended, and the sheet portion is adhered to another ring which retains in that portion the tension then existing in it. Such tensioned sheet and adhering ring are then used to make electret diaphragms for electret microphones.

Abstract: In a plastic injection apparatus comprising a barrel, an axially reciprocable, rotatable, plastic working screw in the bore of the barrel, a nozzle for injecting melted plastic from out of the front of the bore into a mold, and a plurality of axially spaced heater bands ringing the barrel over its length, the heat control for such apparatus is improved by subdividing the barrel into rear and front parts, impeding outward flow of heat from the rear part by the use of thermal insulating material and a heat reflective surface, and promoting outward flow of heat from the front part by the use of cooling means and of a tubular barrel cover which encloses such front part and has inner and outer surfaces which are heat absorptive and heat reflective, respectively. In one embodiment, the mentioned thermal insulating material is incorporated in a tubular insulating shroud enclosing the heater bands in the rear part and of greater I.D. than the O.D. of such bands.

Abstract: There is disclosed a click disc switch assembly comprising a plate-like base having on it electroconductive ink paths including (a) "row" paths each including a respective row of contact pads in a row-and-column matrix of such pads on the base, and (b) "column" paths corresponding to the columns of the matrix and including respective junction pads. Overlying the columns of the matrix are click disc strips secured to the rest of the assembly solely by being adhered to an overlying sheet sealing the top of the assembly. Interposed between the strips and the "row" paths is an insulating layer deposited on the base to cover portions of the row paths while leaving uncovered their junction pads.

Abstract: A telephone handset arranged to operate completely independently of a base comprises switches for effecting a connection with a telephone line and a manually operable pushbutton for operating the switches. The pushbutton is biased to hold the switches in a first position to place the telephone handset OFF-HOOK. Successive manual operations of the pushbutton places the switches in a second position wherein the telephone handset is ON-HOOK. The pushbutton also includes a lip for latching the switches in the second condition to hold the telephone handset ON-HOOK. A neon bulb is located in the handset to signal when ringing appears on the telephone line.

Abstract: The development is an improved elevator hook forming part of an elevator for transferring ceramic substrates in a tray between a magazine and a stepwise indexable rotatable cage in a sputtering chamber. The improved hook has a vertical shank, a vertical arm disposed on one side of the shank and pivotally coupled thereto, a laterally salient horizontal elevator member disposed at the lower end of the arm for supporting the tab of such a tray, a horizontal retainer member laterally and vertically opposite the elevator member and transversely offset therefrom, and a spring urging the elevator member towards the retainer member. The gap is normally small enough to prevent a tray tab dislodged from the elevator member from falling through the gap.

Abstract: An improved elevator mechanism for transferring ceramic substrates between a magazine and a stepwise indexable rotatable cage in a sputtering chamber includes one or more of the following: (a) a substrate carrying tray having a round pick-up rod engageable by an elevator hook for lifting and lowering the tray into and out of the chamber, (b) a tab on the hook having formed therein a groove for receiving such pick-up rod, (c) a retaining tab on the hook for preventing separation between it and the tray in the event such rod becomes unseated in such groove, (d) an inclined plane for transferring the tray from the hook to the cage to initiate travel of the cage-held tray in the chamber as the cage progressively indexes, and (e) a lifting roller for transferring the tray at the end of such travel back to the hook.

Abstract: The disclosed bracket is attachable to an outrigger of a mobile home and is adapted to mount a service closure containing the protector device in a telephone lead-in connection to the home. The bracket comprises: a longitudinally extending base securable by beam clamps to a flange on the outrigger, a longitudinally extending plate disposed transversely to one side of the base and adapted to have the service closure mounted therein, an adjustable length strut means pivotally connected at opposite ends to longitudinally central parts of, respectively, the base and the plate, and first and second base-to-plate fastening means providing alternatively usable first and second pivotal couplings of the base and plate at locations longitudinally spaced from and on opposite sides of the couplings of such strut means to these elements.

Abstract: A method of producing a high color contrast between nickel and/or copper or their various alloys and a noble metal or noble metal alloy such as in electrical contacts having a nickel or copper base with an overlay of a noble metal or a noble metal alloy bonded to the surface of the base. By making the contact one electrode in an aqueous solution of a readily soluable ionizable solute and impressing a low AC voltage across the solution, a reaction occurs which makes the base of the electrical contact easily visually distinguishable from the metal overlay.

Abstract: There is disclosed electroplating apparatus in which a plurality of anodes and a twice-as-large plurality of first and second cathodes are disposed in a cell such that each anode has on its opposite sides a first cathode and a second cathode, respectively. First and second adjustable constant current sources supply current to, respectively, all first cathodes and such anodes and all second cathodes and such anodes. A plurality of current adjusting units respective corresponding to the anodes are connected on the anodic side of each such current source between that source and each respective anode. The anodes are permanently installed in the cell, while the cathodes are carried by a holder fitting over the top of the cell and removable therefrom. The cathodes may be selectively inserted into guideways in their holder and then locked in place in these guideways until removal of the cathodes is desired, when they are unlocked.

Abstract: A method for manufacturing a printed wiring board having a solder layer existing on circuit paths located on surfaces of the board and a solder layer on the walls of thru holes located in the board involves coating the surface of the board with a layer of photopolymer resist. A shield is placed over selected areas of the solder layer on the surface and the shielded surface is exposed to ultra violet light until the unshielded resist hardens. The shielded resist which has remained soft is removed and the board is washed with solder resist to remove the solder layer not covered by a coating of hardened resist.

Abstract: After a telephone switching system user has dialed sufficient digits to identify a call as extending beyond the system, the system attempts to route the call over trunks which will result in the least expense to the user. If all of these trunks are busy, the system then searches to find an idle trunk in identified groups of trunks. If an idle identified trunk is found, a warning tone is returned to the user and before the system will seize the identified trunk and complete the call, the user must signal with a predetermined code within a certain time period. In a nonpredetermined code is signaled, the call is terminated by the system.