Abstract: A combination snorkel breathing tube and mask strap retainer clip includes a snorkel breathing tube having an externally threaded portion, a tubular barrel configured to circumscribe the threaded breathing tube, a tooth disposed on the tubular barrel for engaging the threads of the breathing tube to adjust the vertical position of the barrel relative to the breathing tube, a mask strap retainer and a retaining stud disposed on the tubular barrel and configured for swivelingly accommodating the mask strap retainer thereon.

Abstract: A continuous motion decorator for cylindrical containers is provided with a direct printing unit for printing an auxiliary image on the cylindrical surface of a container that has been imprinted with a main image by an offset blanket segment of the decorator. The direct printing unit includes a plurality of direct printing plates disposed in tandem on a closed loop belt means with each of these plates bearing a different auxiliary image. The offset blanket segments are mounted on the periphery of a continuously rotating blanket wheel. An individual direct printing unit, mounted to the blanket wheel, is provided for each blanket segment and includes an anvil disposed at the upstream end of the blanket segment to support one printing plate at a time in its printing position. For each revolution of the blanket wheel the belt means is advanced by an incremental length to bring a new printing plate to printing position.

Abstract: An individual breathing equipment comprises a head covering provided with a neck joint defining a space which is separated from the outside all around the head and a mask for isolating the respiratory tract. The mask is provided with a breath-in valve and with a breath-out valve exhausting directly to the atmosphere. The breathable gas feed circuit opens into the space defined by the head covering. The outlet of the feed circuit and the outlet of the breath-in valve for taking air from said space are so located that the breathable gas ventilates the head before reaching the breath-in valve. A buffer volume is placed upstream of the opening into said space, defined by a breastplate.

Abstract: A dot line printer has a plurality of print hammers accommodated in a hammer bank, which make dot impressions on a sheet of print paper as the hammer bank reciprocally moves in a print line direction perpendicular to the direction in which the sheet of print paper is fed. To print L dot lines at a time with each of forward and backward movements of the hammer bank, the print hammers are divided into a preselected number of groups so that each group includes N number of print hammers where L and N are integers equal to or greater than 3. The print hammers in each group are displaced one dot line distance from one another in the sheet feeding direction. The print hammers in each group are further displaced in the print line direction by respective predetermined distances from their home positions so that the respective hammers in each group do not impinge upon the sheet of print paper simultaneously.

Abstract: Disclosed is a key switch including a key base fitted into a key hole on the frame of a keyboard body, two contact plates fastened inside the key base, a key cap covered on the key base, and a slide supported above a vertical stub tube inside the key base by a spring and having a bottom rod inserted in the bore of the stub tube, wherein the bore of the stub tube pierces through the bottom of the key base, and the bottom rod of the slide is maintained in flush with the bottom of the key base before it is being pressed; each contact plate has a contact leg extended out of the key base through a respective side hole and then bent downwards by 90.degree. angle.

Abstract: A V-shaped spring system has opposite ends formed by first and second arms and a pair of intermediate coil springs joined by a bridge. One of the coil springs pivotally receives a fixed axle, and the first arm extends from each spring. The second arms extends from the other spring. The spring operates to exert a substantially constant and limited force when the first arm is moved through an angle of up to 90.degree..

Abstract: A heat-sensitive stencil master sheet having good perforation properties, having prevented reduction in the resolution and setting-off of ink to the surface of printed matters and affording a good printed image is provided,which sheet is prepared by laminating a thermoplastic resin film on a permeable sheet of fibers wherein the sum of the clearance areas surrounded by fibers of the sheet same as or less than the area sought by a product of the primary scanning pitch of the thermal head of a heat-sensitive stencil printing device to be used, by the secondary scanning pitch thereof in the advancing direction of the sheet occupies 80% or more of the total of the clearance areas of the sheet.

Abstract: In a stencil printing including the steps of supplying ink in the form of a layer on one side of a perforated stencil sheet, contacting another side of the stencil sheet to a surface for printing, applying a pressure to the ink layer by a pressing means so as to transfer the ink of the ink layer through perforations of the stencil sheet from the one side to the other side of the stencil sheet and to attach the ink thus transferred onto the surface for printing, and detaching the surface for printing from the other side of the stencil sheet, the improvement is which the surface for printing is detached from the other side of the stencil sheet at a portion thereof where a movement of the ink layer relative to the stencil sheet is substantially impeded by the pressing means so that a drawing out of the ink from the ink layer onto the surface for printing due to the adhesiveness and viscosity of the ink does not occur when the surface for printing is detached from the stencil sheet, thus also allowing the extrusi

Abstract: A keyboard wrist support apparatus having an operator-proximal edge portion extending substantially toward the operator such that it maintains proper wrist angle during keyboard use. The invention includes a keyboard housing apparatus, as well as an overlay apparatus useable with a keyboard housing, and affords an efficient, economical approach to the problems associated with carpal tunnel syndrome. Through the use of this invention, proper wrist angle and degree of support are provided such that the incidence of carpal tunnel syndrome is substantially lessened.

Abstract: To clean dusts from a printing cylinder of a blanket, an impression drum or the like can be simply discharged with no adhesion in a casing of a cleaning machine. A cleaning device incorporates a rotary brush in the casing which is disposed opposite to the printing cylinder. An opening is formed in a cylinder confronting portion of the casing, and the cylinder surface can be cleaned by the brush, with some portion of the brush fronting. Provided in the casing is a scraper for eliminating the adhered substances while contacting the brush. A dust discharge port is formed in the wall surface of the casing, and an air blowout means for forming an air layer is provided in the bottom portion of the casing. The dusts taken in by the brush are carried through the air layer to the discharge port while floating the dusts and can be discharged from the discharge port.

Abstract: The ink jet wire marking system is provided with a pretreatment station which employs ultraviolet light to clean and condition a travelling wire. Thereafter, the wire passes through an ink jet printing station for the printing of graphics thereon using UV curable inks. Thereafter, the wire passes through a curing station which employs ultraviolet light to cure the ink on the wire. The wire can then be cut into segments or wound up in a continuous mode.

Abstract: A computer paper printer collection basket constructed with an adjustable bar facilitating the automatic folding of continuous feed printer paper thereacross during the discharge thereof for purposes of stacking. The printer basket may formed with or separately from a discharge area of a conventional printer and disposed immediately therebeneath. The adjustable bar's position to intercept the paper intermediate the fold lines thereof. In this manner, the printer paper will automatically fold thereacross during the collection thereof.

Abstract: A transfer ribbon cassette including a cassette case rotatably supporting first and second reels of the same shape disposed in the same plane, wherein ribbon exposing openings are formed, in the opposite sides of the cassette, parallel with the common side tangents to the cylindrical surfaces of the two reels, the cassette case and cassette interior being of symmetrical construction with respect to an axis parallel with and intermediate between the reel axes; and wherein a thermal transfer ribbon is wound on one of the first and second reels using as the delivery side at first, the delivery end of the ribbon being secured to the other reel in an S-shaped pattern so that the ribbon can be taken up.

Abstract: An ink reservoir (34) capable of maintaining an even distribution of a single color of ink on a printer ribbon is provided. The ink reservoir is used in ribbon cassettes (10) for typewriters and dot matrix printers. The ink reservoir (34) includes a series of cylindrical ink-carrying elements (50) separated by a series of separating sheets (52). The separating sheets (52) restrict or prevent the flow of ink from one ink-carrying element to another element. This maintains an even distribution of ink throughout the height of the reservoir which, in turn, results in an even transfer of ink from the ink reservoir onto a transfer roller and subsequently onto a ribbon. The even distribution of ink in the ribbon results in an even distribution of ink in the characters printed using the ribbon and, thus, improves print quality.

Abstract: An oscillating form roller in the inking mechanism of a printing press includes a roller casing which is rotatable and axially displaceable relative to a roller shaft. During its axial displacement the roller casing encounters set collars that are fastened to the roller shaft so as to be continuously adjustable. Friction surfaces are provided so that, in this contacting position, the set collars and the roller shaft are caused to rotate in synchronism with the roller casing.

Abstract: An adaptation of an inked ribbon cassette to printers of higher printing speed is achieved where a supply spool is used as inked ribbon storage. Furthermore, the problem of an environmentally proper disposal of used inked ribbon cassettes is solved. At least two rotary drivable spool axles (3, 4) are spaced apart from each other on a base plate (1), open toward the upper side and open on the bottom side, where the spool axles (3, 4) are rotary supported on the base plate (1). The inked ribbon reels (2, 5) can be individually attached onto the spool axles (3, 4). A first inked ribbon guide element (7) is coordinated to one spool axle (3, 4). The inked ribbon (6) is guided from a first inked ribbon reel (2) along the first inked ribbon guide element (7) and parallel to the print path (17) and back via a second inked ribbon guide element (8) onto the second inked ribbon reel (5).

Abstract: A keyboard arrangement in which a conventional keyboard is divided into two sections, each of which is separately supported on a joint which is freely rotatable and pivotable. The joint in turn may have a supporting base adapted to rest on or to be clamped to a table top or other support surface. Alternatively, the joints supporting the respective keyboard sections may be mounted on a supporting based member, which may have an adjustable width so that the separation between the two keyboard sections can be varied.

Abstract: A printing press wash-up system is disclosed comprising a fluid receptacle arrangement, a mounting assembly, a wiper assembly, and a pivoting arrangement. The fluid receptacle arrangement is constructed and arranged to operably receive fluid from a printing press roller when it is mounted to the printing press by means of the mounting assembly. The wiper assembly selectively removes fluid from the printing press rollers in operable association with the fluid receptacle arrangement to direct fluid from the roller to the fluid receptacle arrangement. The pivoting arrangement selectively pivots the fluid receptacle arrangement between a first and second extreme position, the first extreme position occurring when the fluid receptacle arrangement is operably positioned to selectively receive fluid from the printing press roller and the second extreme position occurring when the fluid receptacle arrangement is positioned such that it cannot selectively receive fluid from the printing press roller.

Abstract: A roller for moving one of ink and water through a printing press is disclosed as an elastomeric covering on a solid journal. The elastomeric covering includes spiral lands and valleys adjacent the lands having depths ranging from 0.002 to 0.004 inch for ducting water, and ranging from 0.002 to 0.015 inch for ducting ink. At valley depths of greater than 0.015, ink is carried solely on the lands for the purpose of lubricating the ductor system. One embodiment includes reversed spiral land and valley end segments that direct ink inwardly from the ends of the rollers to prevent ink buildup at those positions on a ductor roller.

Abstract: A cleaning apparatus and method for cleaning a print band utilizes a self-contained housing with pulleys arranged vertically or horizontally. One of the pulleys is motor driven at relatively low speed. A print band to be cleaned is installed around the pulleys in the housing and is urged toward a high-speed rotating brush by a spring-biased pressure plate. Air jets can be used downstream of the brush station to dry cleaning solution that remains on the print band.