Abstract: Draw tape bags are provided on a roll, preferably folded longitudinally with the hems containing the draw tapes extending beyond the body of the bags for smooth rolling. The bags are side sealed with perforations between bags for separation of the bags, and the hems containing the draw tapes are side welded so that the hemmed areas are substantially separated. The bag machine for making side sealed bags includes a side welding unit in line with the sealing unit so the sealing and perforating, and welding, are accomplished in one step. The side welding knife has a large radius and high temperature to effect a weld in the multiple layers and the thick draw tape.

Abstract: A method and apparatus for forming draw tape bags wherein the bag material moves continuously during the manufacture, except for the last step. A roll of folded web is provided, and the loose edges are turned inwardly to form upper hems for the bags. The web continues to move, and a cutter is actuated to move through a circle and engage the web to punch finger holes in the hem. The web is further carried to a tandem sealer, the web passing over a roll where heated air is directed at the area of the hem. A "Teflon" strip is placed between the hems to prevent sealing them together. The web continues to a second sealing roll where the opposite side is sealed in the same way. The final step utilizes a stop-start apparatus with a side sealing blade. The side sealing blade has one radius for the body of the bag, and a larger radius for the hemmed area.

Abstract: A back rest and a chair seat are pivoted to each other about a displaceable axis and the back rest is pivotally attached to a support along an axis parallel to that axis. The back rest and the seat are continuously displaceable with respect to each other between a sitting position and a recumbent position of the user. At least the displacement of the chair seat is guided at the end opposite to the axis of pivotal attachment of the seat to the back rest along a curve so determined that, when the back rest and seat undergo a displacement between the two positions mentioned above, the center of gravity of the user's body moves away from a horizontal plane over a distance which is sufficiently short to ensure that the user can modify the relative position of the back rest and seat by exerting acceptable efforts without any need to rise from the chair.

Abstract: A method and apparatus for stacking brick in packages suitable for shipping or handling is disclosed. Such package is provided with two spaced voids adapted to receive the fork of a lift mechanism for handling the package. Arrays of rows of superposed pairs of brick are received at a setdown position and are conveyed to a transfer position where they are assembled in grids for stacking. A void row grid is formed by removing as a unit the upper layer of selected rows of brick to form a first void and such upper layer is subsequently inserted between adjacent superposed pairs of brick at another location to form a grid having a full lower layer and an upper layer having spaced voids therein. The void row grid is transferred to the stack by gripping the lower full layer thereof.

Abstract: A method and apparatus for dehacking and stacking brick or the like is disclosed for automatically removing arrays of brick from a hack and for producing stacks of arrays suitable for packaging. A gripper transfer grips full arrays of brick resting on the kiln car and deposits such arrays on one of two compacting tables. While resting on the tables, the arrays are compacted to ensure lengthwise and lateral abutting alignment of the brick in the arrays. The brick are subsequently transferred after compacting directly to a stacking elevator on which the stack is formed. One compacting table is utilized to produce void rows and operates to withdraw compacted arrays from the stacking location so that brick can be removed to produce the required voids. The array with void rows is then returned to the stacking station for transfer to the stacking elevator at appropriate times in the machine cycle.

Abstract: A trailerable utility crane having a compound articulated mast to provide variable working configurations and foldable on itself to provide a relatively compact storage configuration as well as an extended length sufficient to load and unload a tow vehicle. Transport wheels for road travel are carried by the mast in a manner that allows the base of the crane to be lowered to the ground automatically with extension of the mast. The mast is supported for azimuthal movement on the base and outriggers for stabilizing the base are safety-interlocked with the azimuthal support.

Abstract: A single pivot connection for a legrest of a vehicle seat and the like includes a shaft extending from a bracket attached to the seat and an arm bracket attached to the legrest and pivotally supported upon the shaft. The arm bracket has a cylindrical portion and there is a hub on the end of the cylindrical portion with a circumferentially extending notch therein which receives a key formed in an annular member rotatably positioned upon the hub. A gear mounted on the shaft is engageable with a pawl and there is a braking disc between the end of the cylindrical portion and gear such that the application of a predetermined force on the legrest will pivot the legrest with respect to the seat. The pawl engages the gear as the legrest pivots to a horizontal position and pivoting beyond the horizontal to the vertical up position causes cam surfaces on the annular member to disengage the pawl from the gear so that the legrest is free for pivotal movement.

Abstract: A stacker blender for bricks is disclosed in which a plurality of pallets move progressively down an inclined conveyor and are progressively positioned in a series of course receiving positions. The angle of inclination of the conveyor is arranged so that, after indexing, the uppermost course of a stack on each pallet is positioned at a predetermined horizontally aligned level to receive a subsequent course. A gripper transfer simultaneously grips a plurality of courses from a supply conveyor and transfers a course to each stack at each stacking location. Because each partial stack has one more course than the preceding partial stack the courses transferred during a given transfer operation appear at different levels in the different stacks. This assures complete blending. A void course is transferred at a predetermined location during each cycle so a simplified void course forming system is utilized.

Abstract: This tie down for seat cushions, such as single and multiple mounted type vehicle seat cushions resides in tabs swivelly attached to the opposing sides of the seat cushions and depending downwardly therefrom with the apertures being formed therein adjacent the free ends thereof. Upstanding hooks having bent ears thereon are anchored in the seat frames adjacent the side and center arm rest frames whereby cushions horizontally supported by the seat frames may be detached therefrom and rotated or reversed and reattached to and restrained by the hooks so as to present a clean or unworn seating surface when desired.

Abstract: A device for mounting chairs relative to the floor mounting tracks or rails in railroad dining cars and aircarft and the like so as to permit sliding movement of the chairs but restrains them from being dislodged and upset in the event of accidents or sudden stops. This device includes a bracket anchored to a floor rail and spanning & clampingly engaging the lower leg portions of a chair so that the latter may slide fore and aft relative to the bracket and rail and yet be restrained against other movements.

Abstract: A multiple dolly system for transporting large loads in which individual dollies are simultaneously power-steered through a fluid linkage steering control. Castered wheels of the dollies are steered by fluid power actuators having appropriate ones of their working chambers connected in parallel circuit arrangements, wherein ground reaction forces on the castered steerable wheels are equalized by the tendency of the parallel fluid circuits and actuator chambers to reach a balanced minimum pressure, and whereby the wheels, seeking a path of least resistance, are self-synchronizing in their steering displacements.