Abstract: A hands-free talk-back two-way intercommunication system is disclosed. The system includes a plurality of local stations connected to a main distribution station. Also connected to the main distribution station may be a direct station selector. At least one of the local stations includes a telephone and at least one of the other local stations includes a transducer element. The telephone and the transducer element may be connected in communication with each other through the main distribution station which includes a listen/talk channel controlling member, a call monitoring member and a station selecting member. The listen/talk channel controlling member includes apparatus for adjusting the balance between the listen and talk channels. The channel controlling member also includes apparatus for providing a notification signal to any transducer member which is addressed by the telephone.

Abstract: A clip-on identifier is provided for a loose-leaf ledger book of the type having a front binder bar with a front cover pivotally attached thereto. The clip-on identifier is formed from a transparent material and includes a middle portion extending across a flat front side of the front binder bar of the ledger book, and inner and outer edge portions for closely engaging inner and outer edges of the front binder bar. The outer edge portion of the clip-on identifier includes an integral magnifying lens for enlarging the appearance of an identifying label located adjacent the outer edge of the front binder bar.

Abstract: An apparatus for reproducing sound from data which are electrically stored in an electronic memory is disclosed. This sound reproducing apparatus includes a member for providing timing control to associated electronic circuitry. There is also a member for retrieving the individual elements of the data from the memory and electronic components for converting the retrieved elements into respective audio signals. Furthermore, there are electrical circuit elements for audibly broadcasting the respective audio signals. The duration of the broadcasting of each respective signal is controlled by a circuit which is responsive to the timing control member and the retrieved elements. The present invention may also broadcast sounds from externally input signals. This is effected through an external source element for obtaining such external input and a switch means for connecting either the stored elements retrieved from the memory or the external input from the external source to the audible broadcasting member.

Abstract: Disclosed is an apparatus for providing generally lateral or rearward vision at a plurality of selectable angles. This apparatus is electro-mechanically rotatable and may be remotely actuated. The apparatus includes a support member used to support the apparatus and connect it to whatever it is to be used with. Also included is a rearview structure having a housing, a mirror, a mechanism for rotatably connecting the mirror to the housing, and another mechanism for symmetrically rotating the mirror through the various angles. The apparatus also includes a mechanism which can be remotely operated to actuate the rotating mechanism of the rearview structure.

Abstract: A small diameter fluid-driven pump for subterranean fluid sampling, and including an elongated cylindrical body formed by a centrally disposed control valve block assembly and a pair of hollow motor piston chambers on opposite sides of the valve block and joined thereto. Within the centrally disposed control valve block assembly in axial alignment with the motor pistons are a spool pilot valve and a spool fluid distribution valve. The spool pilot valve is constructed to obviate stalling during its reciprocation under the impress of a power fluid directed thereto, and it functions to control the shifting of the distribution valve to which it is internally connected within the valve block assembly.

Abstract: Apparatus for sawing which can be used either in portable, manually operated form, or as a stationary bench-mounted sawing device for sawing through a workpiece along predetermined angles of cut. The apparatus comprises a portable chain saw which includes a prime mover secured to one side of a flat mounting plate. A saw blade guide plate projects from the prime mover through a slot provided in the mounting plate, and in a plane substantially normal to the plane of the mounting plate. A saw blade is extended around, and guided by, the guide plate, and is protected by guard means pivotally mounted on the mounting plate. A cradle frame structure releasably receives and clamps the mounting plate in a table sawing position when the chain saw is to be so used. A cradle frame pedestal pivotally supports the cradle frame structure for pivotation about a horizontal axis.

Abstract: A thin film magnetic head is disclosed which includes a substrate, a first layer of magnetic material having a first offset portion, a second layer of magnetic material having a second offset portion overlying the first offset portion, and a layer of conductor material disposed within the cavity defined by the two offset portions. In one embodiment the offset portion of the first magnetic layer is disposed within a recess in the substrate. In a second embodiment the offset portion of the first magnetic layer is disposed between two insulation layers mounted along the top surface of the substrate.

Abstract: An artificial intraocular lens device which utilizes a distendable, resilient superior loop and affixure to form a lobular positioning structure for implantation. The lens includes a superior haptic rim and large superior loop that may be secured to the haptic rim to provide spring-like lobes. In addition, various configurations of inferior loop and/or inferior haptics may be utilized in combination to provide a pseudophakia for implantation in the anterior chamber, transiridial position, or posterior chamber.

Abstract: An improved pipe guiding apparatus for vertically aligning pipe section joints in a derrick having a worktable and an elevator for vertically suspending at least one pipe section above the worktable. The apparatus is comprised of a rotary axle for horizontal attachment in the derrick, a frame attached to the rotary axle, a power cylinder for rotating the rotary axle, a pair of guide jaws pivotally attached to the forward end of the frame, a cylinder for moving the guide jaws between open and closed positions attached thereto and control for remotely operating the power cylinder for rotating the axle and the cylinder for moving the guide jaws so that that frame can be selectively moved to a position whereby the guide jaws are adjacent a vertically suspended pipe section and the guide jaws thereafter closed on the pipe section.

Abstract: A triple-sash double-hung storm window assembly which includes a flanged, multiple channeled extrusion of generally rectangular overall configuration. The primary window or first sash of the assembly is the conventional double-hung window built into the house, and the flange of the multi-channeled extrusion is secured to a framing element which surrounds the conventional window at its outer side. The extrusion defines two staggered or offset compound channels forming an intermediate sash and an outer sash. The compound channel which defines the outer sash is peripherally inset from the compound channel defining the intermediate sash so that window and screen elements mounted in the outer sash can be mounted and demounted from the interior of the house, first through the intermediate sash and then through the conventional double-hung window.

Abstract: An improved universal shaper assembly adapted to rotate various forms of shaper cutters about a vertical axis and, alternately, about a horizontal axis. the assembly is provided with a vertically adjustable horizontal workpiece supporting table for use in conjunction with horizontally rotated shaper cutters. Also disclosed is a horizontal cutter adapter assembly for converting a conventional universal shaper having a vertical spindle to provide a woodworking apparatus for horizontally rotating a shaper cutter over a vertically adjustable workpiece supporting table.

Abstract: A method for formation of thin film inductive magnetic transducers wherein a minimum number of basic photomasks are utilized for deposition of successive thin film winding layers, and wherein all odd-to-even inter-film electrical contact points are disposed in a first transverse alignment through the transducer, and all even-to-odd inter-film contacts are aligned in a second transverse alignment through the transducer that is closely adjacent the first transverse alignment.

Abstract: A sound receiver outputs a signal to a sound level detector and to a notification signal generator. The sound level detector outputs a signal to a first input of a switch, and the notification signal generator outputs a signal to a second input of the switch. Also input into the switch is the program from a program source. Under control of the sound level detector, the switch either outputs the program or the notification signal to an output element of the alarm system whereby the program is interrupted and the notification signal substituted therefor on detection of a sound level greater than a preselected level.

Abstract: A power adapter apparatus for use in providing plural system electrical power outputs from a vehicle dashboard cigarette lighter receptacle, comprising unitary frame means providing a cylindrical connector portion extending into a receptacle portion, said cylindrical portion being of a length and diameter for contacting reception within said cigarette lighter receptacle. The apparatus further including two or more receptacle means disposed in said frame means receptacle portion in like orientation and parallel alignment; first conductor means connected between said cylindrical connector portion and each of said two or more receptacle means to provide system electrical power connection; and second conductor means connected between said cylindrical connector portion and each of said two or more receptacle means to provide system ground connection.

Abstract: Tape deck adapter apparatus for radio reception, especially for reception of citizen band transmission having widely variable noise levels. The device consists of a receiver which is adaptable for use within a conventional tape deck for energization and operation; the receiver then includes an automatic squelch control circuit of the type which is particularly useful in receiving incoming citizen band transmissions. The automatic squelch control includes reactive means controlling input to the output audio amplifier, such reactance means being controlled by a DC feedback component as derived from the audio output signal, for application to control conduction of the reactance means, and therefore, the amplification of the audio output stage.

Abstract: A fibrous materials filter device, particularly raw fibrous insulation material, which is used in combination with a centrifugal blower machine to remove projectible objects from the material while also avoiding damage to the blower impeller and housing. The filter device consists of a housing defining a volume and having a tangential input pipe and axial output pipe for affixure to the axial input of a centrifugal blower machine.

Abstract: A device for use by hobbyist collectors for assembling and saving for display memorabilia relating to selected persons, places or things. The device consists of a recording page in the form of an attested certificate for use by the collector in identifying the particular event, and the first side of the page includes in combination therewith a transparent box for containing selected matter relating to the particular event certificate. In addition, the reverse side of the certificate page includes a transparent plastic retaining cover for securing selected photographs related to the particular event. A plurality of such pages may, of course, then be retained in an album enclosure for permanent storage, or selected certificate pages may be framed for wall display or the like.

Abstract: A method of manufacture for forming a novel magnetic read/write transducer head of the type utilizing thin film materials. The method of manufacture comprises steps which deposit a thin film magnetic recording head on a selected substrate having dimensions which enable batch manufacture of a thin film magnetic transducer in combination with its supporting slider assembly. The substrate of selected material in thick wafer form is subjected to a series of thin film deposition, etching and plating operations to form a plurality of thin film magnetic heads thereon. Thereafter, the substrate wafer is diced around each thin magnetic transducer head with subsequent finishing and polishing to requisite shape thereby to yield the complete slider and transducer head assembly.

Abstract: A safety circuit for protective operation at the interface between certain customer premises telephone installations and the external telephone distribution lines. The protection circuit includes a means for discriminating any voltages of sufficient magnitude having a frequency at or near 60 Hz., and upon such detection, a reactance means is responsive to open the connection between the premises telephone installation and the external telephone distribution line.