Abstract: One or more devices are provided that are configured to detachably engage within a modular system. The one or more devices are expandable to provide a surface to perform work.

Abstract: A hydraulic pumping unit is provided that is especially adapted for use for pumping oil from a well, and that provides for independent upstroke and downstroke speed control of the well sucker rod. The pumping unit includes a load sensing, pressure and flow compensated pump that is destroked under no load conditions, a pumping cylinder including a polished rod coupled to the sucker rod, and a unique hydraulic valving assembly that couples the hydraulic fluid pump with the pumping cylinder. The hydraulic valving assembly includes a cylinder control module for independent control of the rates at which the polished rod is raised and lowered, and a signal control module for indicating the upper and lower limits of polished rod travel within the pumping cylinder. The cylinder control module provides for soft turnaround of the polished rod, thereby guarding against stretching of the sucker rod and subsequent degradation of the unit's pumping capacity.

Abstract: The facsimile recording machine having a loop electrode which moves along its own locus, a portion of which includes a linear track. The linear track is opposed by a scanning electrode, between which, a printout is produced on a web.The linear track in which the loop electrode moves is transversely adjustable towards and away from the scanning electrode and also includes a lubricious member therein which holds the electrode moving therepast, in a linear path, free of vagaries and against one side of the linear track.

Abstract: A graphic recorder including a viewable well for holding a recording web in a moist condition. The recorder includes a demountable, transparent well cover and a transparent top. Walls are arranged on the sides of the top and they carry a linear electrode and a roller and simultaneously urge the well cover towards the well to seal the compartment and prevent the escape of moisture.

Abstract: A facsimile recorder for marking electro-sensitive paper including a housing with a base and a cover and a platform disposed within the housing for receiving a cassette which contains a web of paper stored as a roll. A scanning electrode is disposed within the housing in front of the platform and a linear electrode is operatively disposed relative to the scanning electrode. The linear electrode is arranged substantially normal to the path of the paper and parallel to the axis of the paper roll. The cassette is held parallel to the linear electrode by means of a plate which extends from the cover and engages the face of the cassette. Through this arrangement, the paper is withdrawn from the cassette precisely normal to the linear electrode and high quality graphic images are produced on the paper without jamming or misalignment.

Abstract: The resolution of an image that is produced by a graphic recorder is related to the rate that recording paper passes through a recording zone and the sweep rate is related to the rate at which a scanning electrode contacts the recording paper. According to the present invention, both the sweep rate and the resolution are simultaneously coordinated through the use of a ratchet wheel and pawl that are interconnected between the scanning electrode and feed rolls. The ratchet wheel is indexed through the movement of the scanning electrode and as the scanning electrode makes a sweep, the feed rolls are indexed by successive or multiply successive teeth in the ratchet wheel. An anti-backlash device is associated with the ratchet wheel to prevent the ratchet wheel and the feed rolls from reversing themselves during operation of the recorder.

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 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.