Abstract: An electrolytic facsimile recorder with a scanning helix cooperating with a blade electrode in a recording zone to mark a recording web drawn through the zone comprises a housing with a base and a cover. The base has a web support wall approaching the recording zone, and the cover has a compartment for receiving a roll of the moist, electrolytic web, the compartment overlying the web support wall on the base so to locate the moist web roll close to the recording zone.

Abstract: An electrical connector which can be mounted on a panel. The connector includes a self contained locking mechanism with a pair of integrally molded resilient arms that are spaced from the body of the connector by hinges and which are designed to oppose a shoulder disposed around the perimeter of the face of the connector and to grip the panel for a secure fit.

Abstract: A locking mechanism for panel-mounted components having apertures with a transverse dimension narrower than the elongate dimension, the mechanism including a pair of flanges adapted to fit through the aperture and engage one side of the panel and a backing surface with bosses that are designed seat in the aperture with the backing surface resting against the other side of the panel. A variety of electrical components can be secured with this locking device, such as female connectors, switches and lamps.

Abstract: A facsimile recorder for marking an electrosensitive web with a remote scanner signal including a periodically interrupted framing signal and a video signal comprises a scanning electrode and a cooperative electrode for marking the signals on the web during successive scans across the web. Scanning of the web is controlled by a framing circuit which compares the remote scanner framing signal with a recorder generated signal and uses the asynchronism of the two signals to control the scanning electrode until it frames the recorded scanner signal on the web. The recorder pulse generator comprises means sensing the voltage impressed through the web by the scanner signal. When the scan completes its crossing of the web the voltage drop across the scanning electrodes increases producing a recorder pulse which is delayed and applied to the framing circuit.

Abstract: An electrical connector including male and female sections which are adapted to be joined together and clamped with extensions from the sections to insure a tight fit without permanently stressing the yieldable material which is used to form the device.

Abstract: A cassette for a facsimile recorder comprises a plastic housing for a roll of recording web with opposed lips forming an exit path for the web. At least one lip has two parallel ribs pressed in the sheet material extending across the web path so as to stiffen the lip and urge it against the opposite lip and the web in between.

Abstract: In a facsimile recorder receiving a cassette holding a supply of recording paper and having a linear recording electrode, the recorder has a frame detachably receiving the cassette. A scanning electrode on the frame cooperates with the linear electrode on the cassette to mark the recording paper with electrical signals applied to the electrodes as the paper is drawn from the cassette. A cover hinged to the frame carries a resilient member engaging the cassette to urge the linear electrode toward the path of the recording paper and scanning electrode thereby insuring good recording contact with the paper.

Abstract: A facsimile recorder of moist electrolytic recording paper includes a tray under the helical scanning electrode which traverses the paper. The tray performs the dual function of collecting chaff abraded from the paper by the scanning electrode and of containing a supply of moisture for the paper.

Abstract: Facsimile apparatus which graphically records electric signals on recording paper drawn through a recording zone has a linear recording electrode on one side of the zone and a cooperative scanning belt carrying one or more recording styli. The styli are orbitted on the other side of the recording zone by a drive sprocket wheel engaging the belt. At the other end of the recording zone the belt passes over an idler guide which has integral flanges at each end of its semicylindrical body receiving the belt. The guide also has a plunger portion sliding against a spring in a socket on the recorder frame, the spring causing the guide means to tauten the belt.

Abstract: An improved electrochemical recording medium is provided which comprises a support impregnated with an electrolytically conducting solution containing an electrolyte, a chelating or sequestering agent, and a marking compound; and characterized by the inclusion of a six-membered hetero-aromatic nitrogen-containing compound having at least one acidic substituant adjacent to a nitrogen atom of the hetero-aromatic ring. The hetero-aromatic compound unexpectedly provides improvement in color, tone and definition of recorded mark.

Abstract: A stylus for attachment to a facsimile recording belt is formed of springy sheet metal such as stainless steel in the form of a foot with a toe bent downwardly from the end of the foot, and a leg extending upwardly at an angle over the toe to a recording surface. The leg has a cut-out portion intermediate the recording surface and a flexible hinge between the leg and the foot.

Abstract: In a cassette for a facsimile recorder with a moving electrode which scans across a recording web and marks the web with graphic signals electrically applied between the moving electrode and a cooperating linear electrode, the cassette has a tubular housing and a lip extending from the housing. The linear electrode is polygonally cylindrical in cross section and is attached to the underside of the cassette lip.

Abstract: In a facsimile recorder of the type having a relatively fast moving helical scanning electrode opposed by the linear portion of a very slow moving looped electrode or blade, the linear portion is guided in a track with a wall engaging one side of the blade. On the opposite side of the linear portion a strip with spring fingers holds the blade electrode precisely straight against the track wall.

Abstract: A facsimile recorder using an endless scanning belt which carries styli for electrically marking graphic signals on a recording web has a pulley for the belt at the finish of a scan across the web. The belt includes conductive means connected to or integral with the stylus which contacts the pulley as the stylus passes over the pulley. During the pass the stylus touches a contact adjacent the pulley thereby completing a framing pulse generating circuit through the pulley and contact. This recorder framing pulse is compared with a synchronization (sync) pulse of an incoming facsimile signal and used to synchronize the scanning belt with the signal.

Abstract: Facsimile recording apparatus for electrically marking graphic signals line by line transversely of a recording web uses a scanning belt carrying styli which traverse a scan line along a recording zone through which the recording web is fed. The belt is composed of one or more sections each having identically spaced perforations or equivalent feed elements, and additional coupling perforations in the same predetermined relation to the feed elements in each section. By joining the belt sections with fasteners extending through the styli and coupling perforations of overlapping belt sections the styli are precisely positioned with respect to each other and to the feed perforations. The fasteners may also serve as signal conductors.

Abstract: A graphic record such as a bank signature card with a signature portion of limited area is registered by a framing clip on a carriage moveable under a photoelectric facsimile line scanner. The carriage is manually moved to an inner, start-of-scan position where it is arrested by a stop and a motor drives it back to its initial outer position past the scanner. The stop is spaced with respect to the carriage the same dimension as the selected signature portion of the card so that only the signature is scanned in a minimum of time. The stop is adjustable out of the carriage path so that the card or other graphic record can be scanned beyond the selected signature portion.