Abstract: A body attachable bag for suspension from a person's shoulder, constructed of a plurality of panels that individually are substantially non-selfsupporting but which collectively interact with one another to develop and maintain a geometry of the bag that substantially conforms to, i.e. partially wrap the person's torso over a substantial surface area thereby having a reduce tendency to swing when suspended from the shoulder and substantially reducing undesirable pressure points.

Abstract: A shoulder suspended semi-flexible bag configured to conform to and substantially wrap the torso of a carrier, comprising flexible crease resistant panel means secured to the sides of the bag, reinforcing support thereto, such panel means being capable of sufficient flexing as permits the bag to be turned insideout without permanently creasing the reinforcing panels.

Abstract: Method and apparatus for electro-pneumatic control of a stitching machine, operable either in the automatic or semiautomatic mode. Following initiation of a stitching operation through actuation of the present control system, the system internally of itself develops a plurality of interlocks that require the existence of selected conditions for continuation of normal machine operations and which respond to abnormal conditions by precluding machine operation past preselected termination points. Thread conservation is a principal benefit.

Abstract: An elongated ski boat is provided for producing a relatively small, well-defined wake and a relatively smooth working table. The boat comprises an elongated hull which includes a bow, a stern, a port side, a starboard side and a transom. The hull comprises a starboard keel panel and a port keel panel, each of which extends from a location above the water line near the bow to the stern of the hull. The keel panels join one another at a center keel line to form a V-shaped keel section having a starboard edge and a port edge. The V-shaped keel section defines an obtuse angle at the bow which progressively increases to an angle of slightly less than 180.degree. at the stern. A starboard chine panel and a port chine panel are each joined to the respective edge of the keel section, extending forwardly from the stern to a location above the water line near the bow.

Abstract: A tennis serve training device is provided which includes an elongated rigid handle adapted to being gripped as a tennis racquet is gripped. The handle includes a first end and a second end portion. A pair of elongated flexible pouches are secured directly to the second end portion. Each pouch is adapted to receive at least one tennis ball.

Abstract: Masonry units are cured in a kiln having a gaseous atmosphere including water vapor. A portion of this atmosphere is withdrawn and mixed with a flowing stream of heated water. This mixture is injected into a body of water disposed within the kiln at a plurality of spaced apart locations and beneath the surface of the body of water whereupon the gaseous atmosphere is heated and rises to and escapes from the surface of the body of water in the form of bubbles. In a preferred embodiment, the apparatus for withdrawal of atmosphere from the kiln includes an aspirator incorporated in a conduit which also circulates heated water to the body of water within the kiln.

Abstract: A method and apparatus for removing longitudinal gussets from a flat tube of flexible material, such as paper, including a conveyor for conveying the flat tube along a guide path to a gusset removal station having means operative to separate opposite side panels of the flat tube at their leading edges while simultaneously effecting a drag on one of the side panels as one of the forward leading edges enters the nip of feed rolls so that the gussets are removed and lie substantially coplanar with the opposite side panels of the tube to enable subsequent forming of cuffs at one end of the tube preparatory to replacing the gussets and closing the opposite end of the tube.

Abstract: A flaming engine system for an internal combustion engine of the Otto-cycle type comprises primary and secondary pre-ignition chambers serially interposed between an engine cylinder and a spark plug, and self-actuated of means metering high combustible fuel into the primary pre-ignition chamber. The flame commenced in the primary pre-ignition chamber is enhanced and promoted as it is caused to pass into the secondary pre-ignition chamber, then through geometrically designed openings and into the cylinder for ignition of the base-air-fuel mixture contained within the cylinder.