Abstract: A spirally wrapped, round bale transporter and feeder comprising a support frame having first and second ends and including a pair of bale-supporting members; an assembly for coupling the frame to a wheeled vehicle; a plurality of wheels coupled to the frame; a power assembly for raising and lowering the frame relative to the wheels to load bales onto the frame and unload bales from the frame; and a feeding assembly at the second end of the frame for spirally unwrapping and feeding bales transversely of the frame onto the ground. The wheels are pivotally coupled to the frame substantially centrally thereof. The feeding assembly comprises a pair of endless conveyors having bale-gripping fingers and being pivotally coupled to the frame and movable between a stowed position outboard of the bale-supporting members and a feeding position inboard of these members.

Abstract: In a hydrostatic gear machine of the type having an internally toothed outer gear and an externally toothed inner gear wherein the gears have different numbers of teeth, the gears being meshed with the outer gear surrounding gear, particularly advantageous relationships between the numbers of teeth and the shapes of the tooth flanks are provided to permit economic manufacture of the machine for use as a motor or pump.

Abstract: In a housing (1) having an inlet (3) and an outlet (4), a rotor (20) has been mounted rotatably. The rotor has rows of bristles (25) in axially extending, circularly spaced apart rows. The axes of the inlet radially extending inlet (3) and of the outlet (4) are angularly related relative to each other only so far that at least two rows of bristles fit against the inside lying peripheral wall (2) and thus guarantee a good seal of the spreading device. The shaft (22) of the rotor (20) is coupled with the drive shaft (31) of an electromotor (30) by means of a coupling (32) which in the direction of rotational torque is resilient or elastic, in order to keep the starting load of the motor (30) low. The electromotor (30) is entirely capsulated and is surrounded by a housing (33) which is connected with the housing (1). At the point of connection, a sleeve (34) provides a hermetic seal.

Abstract: There is disclosed a composition for the treatment of acne, hyperpigmentary dermatoses or skin hyperpigmentation which contains dicarboxylic acids containing 7 to 13 carbon atoms or certain derivatives thereof that contain reducing functional group or a salt thereof. There are also disclosed methods for preparing mercapto derivatives of these dicarboxylic acids.

Abstract: There are disclosed esters of retinoic acid and alcohols which are azetidinone derivatives. These esters are useful as anti-cancer agents.

Abstract: An apparatus for controlling a single action piston and cylinder having means biasing the piston toward a retracted position within the cylinder and having a non-return valve openable toward the cylinder connecting the cylinder with a fluid pressure source comprises a control valve and a proportional valve. The control valve has an inlet in fluid communication with a supply tank, an outlet in fluid communication with a supply tank, a control port in fluid communication with the fluid pressure source, and a control element movable between open and closed positions for controlling flow of fluid pressure from the inlet to the outlet. The control element is spring biased toward the open position and forced toward the closed position by pressure entering through the control port. The proportional valve regulates the pressure entering through the control port.

Abstract: White, chromium cast iron having shock and impact resistance which comprise iron together with:______________________________________ Carbon: 2.2 to 3.6% by weight Chromium: 12.0 to 30.0% by weight Molybdenum: 0.0 to 3.0% by weight Nickel: 0.0 to 3.0% by weight Manganese: 0.0 to 2.0% by weight Copper: 0.0 to 3.0% by weight Vanadium: 0.0 to 1.5% by weight ______________________________________are disclosed. The casting are produced by casting the molten alloy in a metallic permanent mold, removing the solidified casting from the mold at a temperature above the A.sub.c3 temperature and cooling the casting sufficiently quickly to prevent the formation of pearlite as well as secondary carbide precipitation.

Abstract: Desensitization of carbonless copy systems is provided by contacting an electron-accepting, color-reactant material capable of reacting with a substantially colorless chromogenic compound to form a visible image with a desensitizing agent comprising, in combination, a non-volatile, polyoxygenated compound and a strong chelating agent. In this manner, acid-reactive clay coatings typically used in carbonless copy paper systems are effectively desensitized and prevented from reacting with conventional chromogens, such as crystal violet lactone and benzoyl leuco methylene blue.

Abstract: Preparing a foodstuff for human or animal consumption by sowing seeds of at least one quick-germinating plant of a type such as to produce strong root systems in peat which is allowed to lie in a layer having a thickness in the range of from 40 to 200 mm for a vegetation period of from 10 to 21 days, there being at least 900 Kg of seeds per hectare of the layer and recovering the germinated seeds and the peat as the foodstuff.

Abstract: A method and apparatus is provided for segregating and separately recovering fractions of a mixture of low density solids and high density solids, such as mixtures of clam shells and free detached clam meat. The mixture of solids is submerged in a laminar flowing stream of liquid which has a specific gravity about the same as that of the low density solids and such that the low density solids are substantially non-buoyant in the liquid. The bottom of the laminar flowing stream of liquid is defined in part by an upper foraminous conveyor surface which is moving in the same direction as the laminar flowing stream. The mixture of solids is flowed across a turbulent zone of rising air bubbles, and low density solids are removed from the top of the liquid and high density solids are removed from the bottom of the laminar flowing stream. Advantageous apparatus embodiments are provided for conducting the method.

Abstract: A welding sleeve has an inner body with a grooved outer surface, a surrounding outer body and a resistance heating wire therebetween. The inner wall, between the bottoms of the grooves and inner surface of the inner body, increases in thickness toward the axial center of the sleeve. During welding, the center of the sleeve and the adjacent axial ends of the parts to be joined are heated later than the axial ends of the sleeve, thereby increasing the stability of the joint formed. Also, disclosed are improved mold assemblies for forming the welding sleeve.

Abstract: A compact hydraulic pumping and switching apparatus capable of pumping a hydraulic liquid in connection with an operating liquid supply tank, a clean liquid tank and a dirty liquid reservoir tank in three different modes. One mode fills the supply tank and filters the liquid. A second merely filters liquid from the supply tank. And the third drains the supply tank without filtering the liquid. The apparatus comprises a carrier coupling together, into a single unit, a motor, a pump, a filter and a switching device. The switching device has two spherical stop cocks therein, each with a passage comprising two perpendicular portions. The switching device is connected to the supply tank at two connections and to the clean liquid tank and to the dirty liquid reservoir tank at one connection respectively.

Abstract: Replaceable T-head bolt for attaching a wheel rim to a wheel body are mounted in the body with the head positioned in a U-shaped recess having side surfaces and a bottom wall through which the bolt shaft extends. A washer on the bolt is held by a cotter pin passing through a hole in the bolt which is angularly offset from the long dimension of the T head. The washer is positioned by shoulders on the outside of the bottom wall, the shoulders having different heights. An L-shaped slot permits lateral insertion of the bolt head after which it is rotated 90.degree..

Abstract: The disclosure relates to methods and apparatus for closing a bag mouth of a bag formed from a heat weldable material after filling the bag through the open mouth thereof. The bag mouth is supported from within the mouth by flat elements held apart across the mouth to draw the mouth into an elongate form and then the sides of the mouth are pressed together between an elongate heating element and an elongate anvil and the heating element is activated to heat weld the sides of the mouth together to close the mouth.

Abstract: Articles of furniture such as showcases, desks, etc. are formed using side and leg members joined at corner structures, the side members defining an opening for receiving a panel, each side member having an elongated, lipped channel which receives a retainer for holding a panel such as a retainer for holding a panel such as a glass pane. Each retainer has a flange portion which is longitudinally slidable into engagement with the lipped channel, a surface which abuts the side member and an upstanding wall to engage the panel edge. In one form the wall has a bent edge to overlie the panel, preventing the panel from being lifted out of the opening in a direction parallel with itself. Interconnection structures and trim strips usable with the structure are also disclosed.

Abstract: A method of making a violin including forming the body, neck, sound post and backplate as a unitary structure from a single piece of material such as wood. The fingerboard, shim and nut is also formed as a single piece. The top plate, bridge, tailpiece and peg structure are separately provided and assembled with the body-neck and fingerboard members in a simple and inexpensive instrument. A kit with components thus formed is disclosed.

Abstract: A menu board includes a housing containing a light source, a translucent front panel and a plurality of parallel, spaced ribs with flanges attached to the face of the panel. Menu information strips are insertable between the ribs. Picture units having faces with translucent pictures thereon have opposite side walls with hook elements to engage flanges on any two ribs.

Abstract: A looper used in the manufacture of asphaltic roofing felt comprising a driven endless belt of spaced tubes adapted to carry loops of felt between adjacent tubes, a track inclined toward said loops, a trolley having fingers adapted to contact the foremost loop in the looper, rollably mounted on the track wherein the improvement comprises a chain driven at the same rate and in the same direction as said endless belt and means on said trolley to interlock with said chain actuated when said fingers have contacted the foremost loop whereby the trolley travels with the foremost loop and the fingers maintain a constant pressure or contact on the foremost loop, until the loop is pulled out of the reach of the fingers, whereby the fingers drop and deactuate the interlock means, allowing the trolley to roll by force of gravity until the fingers again contact the foremost loop and the operation is repeated.

Abstract: A seal and closure for a container end includes a metal foil seal having a cylindrical part sealed to the inner surface of the container adjacent the end, a transverse diaphragm part recessed inwardly from the end, and a tear tab on the diaphragm. An annular groove is formed in the cylindrical part between the container end and the diaphragm, the groove defining a tear line so that the membrane and the inward portion of the cylindrical part separate from the remainder thereof when the tear tab is pulled. An insertable lid covers the seal.