Abstract: The ends of two cables associated with a suspension lever in a negative dobby for controlling a common held frame are fixed in a ferrule of an eyelet which is shaped to engage a fastening section provided on a terminal edge of the lever.

Abstract: A tow bar assembly for a tractor which enables up to three implements to be simultaneously pulled through a field utilizing a conventional hitch of the tractor. The tow bar assembly includes hitch dollies which are pivotally mounted so as to be moveable about both horizontal and vertical axes to a primary support beam and a pair of outrigger beams which are pivotally connected at opposite ends of the primary support beam in such a manner that the dollies are permitted to follow the natural terrain when the tow bar assembly is in use. Implements, such as hay balers, may be selectively hitched to the dollies.

Abstract: A device for mechanically connecting and assisting vertebrae with respect to one another which includes at least one securing device cooperating with a ball joint adapted to be connect to a vertebra and a compressible body maintained along an axis of the securing device. The securing device includes two end bodies which retain a ball joint and the compressible element therebetween. At least one of the two end bodies is formed as a cup which is adapted to cover a portion of the ball joint and the end bodies are connected together by a connecting element disposed around the compressible member and over the cup of at least one of the two end bodies such that the connecting element is adapted to move over an outer surface of the cup.

Abstract: A method and apparatus for high speed and uniform manufacture and assembly of acoustical diaphragms having electrical conductor circuits applied thereto to frame components used with acoustic transducers wherein a web of diaphragm material having a plurality of spaced circuit carrying diaphragm sections applied thereto is moved relative to an applicator station wherein each section of the web of diaphragm material is placed under a predetermined tension and a frame component is bonded to the tensioned section, afterwhich the section of diaphragm material is severed from the web of diaphragm material.

Abstract: A cartridge has a case comprising a body housed telescopically within a sleeve. The body encloses a main chamber which contains gas under pressure, and a valve mechanism for venting gas from the chamber into an expansion chamber. The pressure of the gas in the expansion chamber causes the body to move rearwardly relative to the sleeve to apply a force to the breech block of the weapon in which the cartridge is used, thereby to initiate the reloading cycle. Gas is vented from the expansion chamber to eject a projectile when a spigot projecting from the body is withdrawn from an aperture in the end wall of the sleeve.

Abstract: A machine for applying labels distributed uniformly on a strip to items which includes a swinging arm mounted on a support for engaging the items and a drum for driving the strip of labels. The drum is rotated incrementally by a drive mechanism and means are provided for controlling the drive mechanism and for detecting movement of the arm by engagement with an item. The means for detecting movement of the arm detect the initial movement of the arm to thereby initiate the means for controlling the drive mechanism to index the drum through one complete step thus advancing a label for application to the item.

Abstract: A process for the production of a superelastic material out of a nickel and titanium alloy, characterized by the fact that it consists in obtaining an ingot starting from a mixing of nickel and titanium consisting in 55.6%.+-.0.4% in weight of nickel and to proceed with a thermal treatment of martensite plaquettes generation by subjecting said ingot during 5 to 45 minutes to a temperature comprised between 480 and 520.degree. C. The process allows the obtaining of a truly superelastic material at room temperature.

Abstract: A method and harvesting apparatus for stacking cut sod wherein the cut sod is formed into rolls at a rolling station carried by a machine and wherein alternating first and second series of rolls are conveyed in a first direction relative to a stacking station so as to form in the stacking station alternating first and second layers of rolls which are oriented generally perpendicularly to one another and wherein the rolls in each layer are oriented generally parallel with respect to one another. The second series of rolls are partially rotated approximately 90.degree. as they are conveyed to the stacking station so the second series of rolls are oriented generally perpendicularly with respect to the first series rolls. The apparatus also includes a wrapping device which is movable with respect to the stacking station so as to be maneuverable about the layers of sod rolls which are formed within the stacking station.

Abstract: The invention is a single-wheel floor-polishing machine provided with drive wheel comprising two coaxial, opposite cup-shaped elements connected with each other by means of one or more traction elastic elements suitable for raising the polishing wheel from the floor. The upper cup is mechanically connected with the electric motor and the lower cup is connected with the rigid rotary plate that supports the polishing wheel. The polishing wheel rotation generates a centrifugal air vortex under the polishing wheel itself, which results in the formation of an area below normal atmospheric pressure, as a consequence of which the polishing wheel is attracted to the floor. In the starting phase the polishing wheel is raised from the ground and free to rotate; the polishing wheel does not overheat because the pressure is automatically regulated according to the polishing wheel rotation speed, to the type of floor and to the elasticity of the traction springs.

Abstract: Supplemental guards are pivotally mounted on opposite sides of a conventional saw blade housing associated with miter saws. The supplemental blade guards are mounted so as to normally extend outwardly beyond the cutting blade whenever a miter saw blade is not engaged with a workpiece. The supplemental guards are positively guided as they are pivoted relative to the saw blade by contact with a workpiece as the miter saw blade is lowered to a cutting position.

Abstract: A method and apparatus for shoreline reclamation which includes utilizing groyne structures including stanchions to which are mounted at least one porous screen and wherein the screen is vertically adjustable as material is deposited during the reclamation process.

Abstract: An external lock assembly for sliding doors and the like, cooperating with a tubular frame mounted element, which has a thickness and form such as to enable it to be mounted within the limited space available in between a pair of sliding door panels (glass panel and shutter panel). The external lock assembly comprises at least one and preferably a pair of sliding bolts and effects a locked condition of the sliding door when the sliding bolts enter within a central vertical hole of the tubular frame mounted element.

Abstract: Screens for protecting the intake openings of pool skimmer systems which include a body portion having front and opposite side walls. Retention flanges extend from the body rearwardly relative to the front wall of the size to extend within the intake openings for retaining the screens within the intake openings. In some embodiments the screens may include top and/or bottom sections or an optional outwardly extending debris receiving tray.

Abstract: A film carrier including a strap adapted to be worn by an individual and which is selectively connected to one or more belt segments which support a plurality of receptacles for housing rolls of film and wherein each receptacle includes a removable lid which is tethered to the belt segment on which the receptacle is supported.

Abstract: An apparatus for demonstrating various phenomena associated with the earth's movement about the sun, having an upright fixedly attached to a base, at least one arm having two ends and being mounted on the upright in such a way as to be rotatable in a vertical plane, a crooked bearing housing for a spindle located near one of the ends, carrying a rotatable globe and constituting the axis of rotation thereof, all in such a way that, with respect to a line normal to the plane defined by the are, the axis of rotation of the globe is imparted a downward inclination of about 23.5.degree.. The apparatus further includes a light source unit attached to the arm at a point near the other end thereof and producing a light beam of a spatial extent sufficient to fully cover the globe, and drive means for causing the globe to rotate about its own axis, and for causing the arm to rotate in the vertical plane.

Abstract: A method and apparatus for permitting use of an ABS electrical power circuit associated with a tractor-trailer vehicle to provide auxiliary power whenever the trailer is parked and which provides for full power to an ABS brake control circuit through the ABS electrical power circuit in response to air pressure in the emergency brake supply line of the tractor-trailer vehicle being above a predetermined minimum which is sufficient to release the trailer's emergency brake and permit movement of the trailer.