Abstract: A mechanism for releasably coupling an auxiliary wheel with an original wheel of a vehicle is disclosed, characterized by a cylindrical coupling member upon which the auxiliary tire is mounted. The cylindrical member contains a plurality of cutouts in one edge thereof and a plurality of tightening devices adjacent the cutouts. A plurality of locking cams are secured to the rim of the original wheel. The tightening devices of the coupling member are adapted to releasably interlock with the locking cams on the original wheel rim to releasably couple the auxiliary wheel with the original wheel.

Abstract: An oil filter assembly is disclosed, characterized by a sectional housing and a removable filter member arranged therein. The housing includes base and cover members having adjacent planar faces which contain a plurality of corresponding, circular, concentrically spaced grooves which define a plurality of ribs. A radial groove in the face of each member extends through each of the associated ribs to afford communication between the associated grooves. The radial grooves of the housing members extend diametrically radially outwardly in opposite directions and the housing contains inlet and outlet openings communicating with the radial grooves, respectively. The filter member has a planar configuration, is removably mounted between the base and cover members, and extends between the circular grooves contained in the base and cover members on opposite sides of the filter.

Abstract: The trimaran has a lateral hull which is fixed at the end of a beam rotatably mounted on a longitudinal axis, which itself is supported by an outrigger protruding from the central hull. A jack allows the lateral hull to rotate around the axis (arrow). Openings are provided in the lateral hull, in order to fill and flush it. The catamaran can be righted from the capsized position by a rotation of the water-filled side hulls through about 90.degree., because the side hulls then act as ballasted keels. After emptying the lateral hulls and returning the beams to their normal position, navigation may be resumed.

Abstract: A method is disclosed for increasing the cycle stability of a latent heat accumulator medium consisting essentially of a pure or saturated sodium sulfate salt melt. The cycle stability is increased by adding sulfuric acid to the latent heat accumulator medium in an amount of from 0.5 to 3%, by weight, based on the weight of the latent heat accumulator medium. The pH value of the latent heat accumulator medium is lowered without precipitation of impurities or the occurance of supercooling in the latent heat accumulator medium.

Abstract: A method and apparatus are disclosed for forming a novel corrugated paperboard web of indefinite length, which web includes a planar facer layer and a corrugated layer the flutes of which extend longitudinally the length of the web. The web is formed by splicing together sections having offset planar facer and corrugated layers of generally equal dimensions, respectively, whereby at one end the facer layer projects beyond the corrugated layer and at the other end the corrugated layer projects beyond the facer layer, the flutes of the corrugated layer extending from one projecting end to the other. Successive sections are spliced together with the projecting facer layer portion of one section overlying the projecting corrugated portion and the facing layer of another section, preferably with the adjacent portions of the corrugated layers of the two sections being in flute-enmeshing engagement.

Abstract: A weighing apparatus is disclosed including a vertically movable load receiving member, and a scale pan carrier resiliently connected with the load receiving member for limited movement with respect thereto, thereby to protect the weighing system against damage upon the occurrence of lateral impact during handling. In the preferred embodiment, a horizontal scale pan carrier arm is connected at one end with the load receiving member for limited movement (a) horizontally axially in a direction normal to the vertical axis of the load receiving member, (b) pivotally upwardly about a horizontal pivot axis, and (c) rotationally in a horizontal plane about the vertical axis of the load receiving member.

Abstract: The present invention relates to an improved air-purifying device for respirators of the positive pressure type.The device comprises an expandable chamber having an outlet for connection to a facepiece, for example, a face mask, and an inlet connected to a pump for drawing ambient air into the device through a filter and pumping it into the chamber. In use, the wearer of the face mask draws air from the chamber and that air is replenished by operation of the pump.Apparatus is provided for sensing the degree of expansion of the expandable chamber and is coupled with a device for varying the power supplied to the pump so that the pump means supplies only sufficient filtered air to maintain the chamber inflated. A bias is provided on the chamber, advantageously coupled with the sensing apparatus for maintaining a positive pressure in the chamber.

Abstract: A composite container for fluent materials in the liquid or semi-frozen state is disclosed, together with a method for making the same. The container includes a vertically arranged body member that is flared at its upper end, and an end closure member is provided including a circular central panel portion arranged within and extending across the upper end of the body member, annular chuck wall portion extending upwardly from the central panel portion adjacent the flared portion of the body member, and an annular connecting flange portion extending radially outwardly from the upper end of the chuck wall portion. The invention is characterized in that the connecting flange and chuck wall portions cooperate with the flared portion of the body member to define an annular space in which is arranged a resilient annular mass of sealing material.

Abstract: A weighing apparatus is disclosed of the type including a horizontal scale pan carrier connected at one end with a vertical load receiving member that is guided for vertical movement relative to the housing, characterized by the provision of a calibration weight removably mounted on the other end of the pan carrier beneath the scale pan, and a device for raising the calibration weight to an inoperable position relative to the pan carrier arm. In the preferred embodiment, the calibration weight comprises a horizontally arranged U-shaped member the center of gravity of which is arranged below the scale pan. In this manner, a compact and simple arrangement of the calibration weight is provided that furthermore facilitates ease of handling and operation.

Abstract: Apparatus is disclosed for use in a digital signal transmission or recording system, particularly for video signals where, as is customary, the number of digital signals (i.e., digital words) is reduced (for example, by a factor of 2) prior to transmission or recording. The apparatus is operable to determine when a digital word fed to an input filter has a characteristic similar to that of a filtered word so that such a word can bypass the input filter and be transmitted or recorded without further filtering. This is achieved by monitoring the words input to the input filter and then operating a bypass around the input filter when the monitoring circuit detects that an input word has a characteristic similar to a filtered word.

Abstract: An improved differential mechanism of the holdout ring type is disclosed, characterized in that the annular holdout rings are mounted concentrically between the driven clutch members and the associated side gears, respectively, and the springs biasing the driven clutch members toward engagement with the driving spider member arranged therebetween includes a pair of compression springs mounted concentrically between the holdout rings and the side gears, each spring reacting at opposite ends between the associated side gear and annular spring retainer member, respectively. Furthermore, the driven clutch members are each provided with only one set of uniform teeth which cooperate both with driving teeth on the spider member and overrunning clutch-disengaging teeth on the center cam member. Consequently, a compact durable positive differential mechanism is provided that is of relatively simple, inexpensive construction requiring a minimum number of parts.

Abstract: A cast string-type measurement cell, including a metallic string member having cast thereto nodal masses, clamping elements, and spring and suspension elements, thereby to define an integral structural assembly that may be formed by a casting mold in substantially finished condition ready for installation in the measuring apparatus. Preferably, the string is formed of an amorphous metal, and the cast components comprise a glass-fiber-reinforced synthetic plastic material.

Abstract: The present invention relates to a respirator of the type called a filtering facepiece which is made from a flat pocket of flexible filtering sheet material having a generally tapering shape with an open edge at the larger end of the pocket and a closed end at the smaller end of the pocket. The closed end of the pocket is formed with fold lines defining a generally quadrilateral surface comprising triangular surfaces which are folded to extend inwardly of the pocket, the triangular surfaces facing each other and being, in use, relatively inclined to each other.

Abstract: The present invention relates to a filtering facepiece made from flexible filtering sheet material.The facepiece is made from a flat pocket 100 of filtering sheet material having opposed side walls 105 and 106, a generally tapering shape with an open end 104 at the larger end and a closed end 101 at the smaller end. The edge of the pocket at the closed end is outwardly bowed, e.g. defined by intersecting straight lines and/or curved lines, and the closed end is provided with fold lines 107 defining a surface which is folded inwardly of the closed end of the pocket to define a generally conical inwardly extending recess 108 for rigidifying the pocket against collapse against the face of the wearer on inhalation.

Abstract: A paperboard blank for forming a dispenser for rolls of sandpaper and the like is disclosed. The blank includes rear, first side, front and second side walls defined by spaced vertical fold lines and rear, first side, front, and second side wall bottom flaps connected with the lower edges of the rear, first side, front, and second side walls by a horizontal fold line, respectively. The bottom flaps are folded about the horizontal fold line and the walls are folded about the vertical fold lines to form the dispenser. The blank is characterized by top flaps connected by horizontal fold lines with the upper edges of the rear, first side, and second side walls and which are folded in different manners depending upon whether the dispenser is to be formed into its closed shipping condition or into its open dispensing condition.

Abstract: A solder removing device is disclosed for absorbing solder which has been rendered molten by the application of heat, including an open-mesh structure comprising a strand and formed by knitting, as a primary example, at least the surface of the strand being metallic and receptive to solder flux (and indeed being coated with solder flux rendering it more capable of wetting with molten solder). The open-mesh structure enables the device to absorb solder more freely and in greater quantities than can prior braided devices in which the multiple strands are contiguous.

Abstract: A cathode ray tube is disclosed which is relatively flat in the viewing direction, including a transparent envelope having at least one generally flat section, a screen arranged within the envelope, an electron gun for projecting an electron beam along a path substantially parallel to the plane of the screen, and first and second deflecting means for causing the beam to scan a line and a frame, respectively, characterized by the provision of a single conductive member of a given potential forming a beam directing electrode spaced from the screen and arranged such that the path of the electron beam lies between the electrode and the screen.