Abstract: An excavating wheel is disclosed which includes a plurality of digging buckets each comprising a wall supported for pivotal movement between a material receiving position and a material dumping position. A plurality of cylinders each connected to one of the movable walls are selectively actuated under fluid pressure to pivot each movable wall to the material dumping position. A plurality of springs each connected to one of the movable walls are provided to pivot each movable wall to the material receiving position.

Abstract: A combined desalinization and extraction process for brinewater having a salinity of 71/2% to 9%. The brinewater is introduced to a concentrator basically similar to a shell-and-tube type heat exchanger vertically arranged with upper and lower chambers above and below the tube section and communicating with each other through the tubes. A heating element in the lower chamber causes the brinewater to be heated until it reaches its boiling temperature. Vapors are removed from the upper chamber and are externally compressed so as to create a partial vacuum in the upper chamber. The compressed vapors are passed from the compressor to the concentrator into the spaces on the outside of the tubes where the vapors are condensed as liquid water. The condensed fresh water on the outside of the tubes is removed. The remaining brinewater within the tubes, which is concentrated at 28% salinity, is conducted to a plurality of electrolytic cells having positively charged anodes and negatively charged cathodes.

Abstract: An improved arrangement for preheating feedwater in a steam boiler system prior to the feedwater entering a fuel economizer in order to prevent corrosion due to condensation of flue gas in the fuel economizer and in the exhaust of the boiler system. The feedwater, prior to entering the fuel economizer, is heated in a preheater with a portion of steam from a boiler. The amount of steam entering the preheater is regulated by two temperature control valves. A first temperature control valve is regulated by the temperature of the feedwater prior to entering the fuel economizer. A second temperature control valve is regulated by the temperature of the flue gas in the boiler exhaust stack.

Abstract: An apparatus for standardizing typewriting margins comprising a front sheet having lateral and longitudinal edges which has a window, and a back sheet attached along a seam adjacent three edges to the front sheet which leaves an opening along one edge. A leaf of paper is placed between the front and back sheets along the seam for holding the leaf in place. The window is of a certain given size such that the portion of the leaf showing through the window is the portion to be typed upon. The predetermined margins on the leaf of paper, both lateral and longitudinal, are covered by the front sheet. A scale is disposed adjacent a lateral edge to indicate the number of typewriting spaces remaining before a predetermined margin is reached. Graduations are disposed adjacent both longitudinal edges for indicating the number of lines remaining before a predetermined margin is reached.

Abstract: A method of altering the photometric output and distribution of a light beam produced by a lamp having a fluted sealed beam lamp lens cover, the light beam having a certain beam shape which, in the absence of the present invention, does not conform to the photometric specifications for auxiliary low beam automobile head lamps; the latter specifications require the lamps to have specific maximum and minimum candela(s) output at various photometric points within the beam pattern.Specific areas of certain flutes molded into the lens cover of a non-conforming sealed beam lamp are partially or totally covered with an opaque material or obstructed by a shield to restrict the candela output of unwanted light at various photometric points within the beam pattern, and thus permit the total beam pattern of the treated lamp to meet state and Federal photometric specifications for auxiliary low beam automobile headlamps.

Abstract: An improved seal assembly for a well head including a ring-shaped seal body positioned in the tubing head, a tubular coupling formed to the seal body and adapted to connect between adjacent portions of inner tubing, a lower seal ring positioned in the tubing head above the seal body and surrouding the coupling, a pliable rubber gasket positioned in the tubing head above the lower seal ring and surrounding the coupling, and an upper seal ring positioned in the tubing head above the gasket and surrounding the coupling. The seal body has a central circular opening and a radial slot for a cable. The lower seal ring has an inner circular section and an outer circular section split into an arcuate outer front section, and an arcuate outer rear section. The outer section has a semi-circular opening along the inner edge. The inner section is provided with a semi-circular opening on the outer edge which mates with the semi-circular opening on the outer section to form a passageway for the cable.

Abstract: An apparatus for hoisting a wheel chair into and out of an enclosure including a swivel base having a stationary section that may be secured within the closure and a section rotatable on the stationary section about a vertical axis. A motor mount is positioned above and is connected to the rotatable section of the swivel base. An angled arm is pivotally connected to the motor mount and is capable of standing rigidly upright when in use and capable of folding down when not in use. A cable, attached to a reel at one end, has a series of pulleys located on the angled arm to guide the cable over the angled arm. The reel is formed to the motor mount and is connected to a motor on the motor mount through use of gearing. A hook is formed at the other end of the cable for use in hoisting.

Abstract: A combined cooking, draining, and mashing apparatus for food including a pot having a cylindrical side, a flat bottom and an open top and capable of being heated in order to cook said food, a removable lid capable of fitting snuggly in the open top of the pot, and a section on the lid adapted to open having vents or holes for draining. A crank, exterior to the pot and lid, is connected to a mashing attachment inside the pot through a gear arrangement.

Abstract: A hanger for supporting plants or the like from a vertical wall in horizontally spaced relation and providing for simple installation without unduly defacing the wall, comprising three legs, each leg having a first end and a second end opposite from the first end whereby the first ends of the three legs are spaced in such a fashion as to form a triangular base. The three legs extend convergingly away from the base and are connected together at their second ends to form a common vertex point being provided with a hook for holding a plant or the like. The first ends of two of the legs are connected by a cross-piece near the triangular base.

Abstract: An internal pipe coating apparatus for coating the interior surface of uncoated weld joints in an otherwise internally coated pipeline comprising a frame having wheels at the forward and rear ends thereof, the forward end being oriented or directed towards the uncoated weld joint to be coated, and a drive motor for driving one pair of wheels to move the coating apparatus towards and beyond the uncoated weld joint. A feeler mechanism is located at the rear end of the apparatus. Means are provided to elevate the feeler mechanism into contacting position against the internal surface of the pipe when the drive motor is actuated to move the apparatus in a forward direction. The feeler mechanism comprises a pair of electrically conductive arms adapted to bear against the internal surface of the pipe and to create a completed circuit through the pipe when the feeler arms engage the bare surface of the uncoated weld joint to stop the drive motor.

Abstract: A sliding door for a doorway comprising a door frame, an upper horizontal housing extending across the top of the door frame, a rear stationary panel mounted within the door frame to one side of a door opening in the door frame, and means for mounting the sliding door for horizontal sliding movement from a closed position over the door opening to an open position in front of the stationary panel. A vertical side of the sliding door abuts over a vertical side of the stationary panel, and a vertical track is mounted on the vertical side of the sliding door between the sliding door and the stationary panel. A vertical pivot arm is pivotally mounted adjacent its upper end in the upper housing in substantial alignment with the vertical side of the sliding door when the sliding door is in its closed position. A guide roller is mounted on the lower end of the vertical arm and received within the vertical track.

Abstract: A system for determining and registering the amount of food consumed in a given period of time by each of a plurality of animals, such as cattle, comprising a feed station which the animals can enter individually and separately for feeding purposes. The feed station includes a food hopper mounted on a load sensing means whose output changes as the amount of food in the hopper changes. Means, such as a photo-electric sensing device, are provided to determine the presence of an animal at the feed hopper. The actuation of the photo-electric sensing means will energize a scale weight measuring means which sends a series of pulses corresponding to the weight of food in the hopper to a consumption measuring means. Actuation of the photo-electric sensing means will also energize an interrogation coil which repeatedly sends electromagnetic pulses to the animal to actuate an identification tag attached to the animal. The tag includes a small R.F. transmitter capable of transmitting an R.F.

Abstract: An air car capable of flying above the surface of the ground and above the ground-effect distance comprising a substantially rectangular frame structure defining a front end, a rear end, lateral side ends, a top and a bottom; a turbine engine mounted in the forward end of said vehicle and having an intake opening leading thereto at the forward end of said vehicle, a pair of rearwardly directed exhaust ports located adjacent the center of the rear of said vehicle and connected to the exhaust of said turbine, a pair of lateral exhaust openings adjacent the forward end of said vehicle and connected to the exhaust of said turbine, a pair of lateral exhaust ports located adjacent the rear of said vehicle and connected to the exhaust of said turbine, a pair of spaced fan assemblies mounted at the forward end of said vehicle and adjacent the sides thereof adapted to draw air from above said vehicle and force the same downwardly through openings at the bottom of said vehicle, a second pair of spaced fan assemblies mo

Abstract: A system for spraying powder circumferentially around a pipe comprising a yoke engagable with the pipe for more than 180.degree. of the pipe. The yoke has a powder dispenser mounted thereon and means are provided for driving the yoke circumferentially about the pipe. The system also includes a powder suspension device and a blower-suction device providing a stream of air under pressure to the powder suspension device for creating an air-powder suspension therein. The powder dispenser has an inner housing and an outer housing both having openings adjacent the surface of the pipe and arcuately shaped to conform with the curvature of the pipe. The outer housing forms a space around the periphery of the inner housing. A first conduit connects the powder suspension device to the inner housing of the powder dispenser to provide a spray or stream of air-powder suspension to the surface of the pipe.

Abstract: A latching mechanism for a hoisting hook of the type having a C-shaped body portion with a stem at one end and a tip at an opposite end spaced from the stem to form a mouth, a longitudinally extending latch pivotally connected at one end to the stem for pivotal movement towards and away from the body portion about a horizontal pivot axis perpendicular to and spaced from the central axis of the stem, the tip having a recess means therein terminating in a stop means, the latch being provided with a projection means adjacent the opposite free end, whereby, when the latch is pivoted about its pivot axis away from the body portion, the projection means will pass into the recess means until it engages the stop means, constituting a closed position of the latch with respect to the hook, a spring means for urging the latch away from the body portion towards and into engagement with the tip, and rotatable locking means at the opposite end of the latch and selectively engagable with the upper end of the tip for retaini

Abstract: A connective means which provides a variable attitude between a torch and a pipe beveling machine including a fixed plate with a flat surface attached to the pipe beveling machine. The plate is provided with two slots in the flat surface, a central slot and an outer slot. The longitudinal center line of the central slot is perpendicular to the longitudinal center line of the outer slot. The torch is seated in a saddle and a pin and bolt are each attached at one of their ends to the saddle. The pin and bolt are received into the central and outer slots, respectively, at right angles to the flat surface of the plate and are slideably movable longitudinally there along. A clamp means for placement on the bolt is provided to clamp the plate and saddle together with the saddle resting against the flat surface for maintaining a selected attitude during the operation of the pipe beveling machine.

Abstract: A device for transferring article carriers from one carrier tube of a pneumatic transfer system to another carrier tube provided by a hopper movable along a guide. A plurality of gated incoming carrier tubes are positioned above the hopper. When the slide gate of an incoming tube containing a carrier is opened, the carrier is dropped into the hopper positioned below. A plurality of gated outgoing carrier tubes are positioned below the movable hopper for receiving the carrier dropped from the hopper when a hopper gate is opened and the slide gate of the desired outgoing carrier tube is opened.