Abstract: A harrow has an elongated frame beam supporting a row of rotatable soil-working members mounted side-by-side on upwardly extending shafts. The frame beam and row of soil-working members extend transverse to the direction of travel of the harrow. At each lateral end of the row, a screening plate is positioned and pivoted to the frame beam. Each screening plate extends in a substantially vertical plane in the general direction of travel. Also, each plate has a lower support portion that rides over the ground and side edges that are inclined upwardly. The screening plates are supported on arms that can be pivoted to relocate the plates 180 degrees so they can rest in inverted positions on top of the frame beam during transport. A roller is pivoted to the frame and positioned to the rear of the soil working members and the screening plates are located between the roller and the members, when seen from the side.

Abstract: An implement has rotatable cultivating members that are driven to rotate about upwardly extending axes. Each member includes a horizontal support arm and downwardly extending tools journalled at each end of the arm for free rotation. Along the length of each tool, are radial, superposed soil-working elements that are flat; the lowermost element can have cutting edges. The elements are separated from one another by spacer sleeves and are angularly offset relative to one another. Also, the elements can be different in configuration from one another and in one version, the tools are rotatable about axes that converge towards the axis of rotation of the corresponding member. When rotated and moved through the soil, the elements work ground at different levels to intermix the soil.

Abstract: A soil cultivating implement has an elongated frame portion and a plurality of rotatable members mounted at the lower ends of respective elongated shafts. Each member includes a carrier and tools on radial arms are connected to the carrier. The carrier is fastened to a nonrotatable tube through a hood and flange arrangement that prevents stalks and the like from fouling the shaft housed within the tube. The tools can be rigid tines or resilient strip-like blades which are angled downwardly in the direction of rotation. Guides in the form of rods can be mounted to coextend with the tools, upwardly to the rear so that soil loosened by the tools is displaced upwardly by forces that crumble the displaced soil before the latter falls rearwardly. Drive to shafts is effected through a gear box on the frame portion and further shafts that have pinions in mesh with those on the soil working member shafts. A further implement can be linked to the frame portion and driven via a rear shaft of the gear box.

Abstract: A rear-vision mirror for attachment to the outside of an automobile or other vehicle which is caused to spin by an electrical motor or relative wind to dislodge water, snow or ice. The mirror may be in the form of a disc or a cylinder.

Abstract: An implement has a hollow frame portion and tool means on shafts journalled for rotation on the frame portion. The upper ends of the shafts are held in bearings in housings located in the top wall of the frame portion and pinion gears are housed within the frame portion below the housings. The bearing housings are each formed by two separable portions that hold a bearing between them. The upper housing portion has a deformable relatively thin cover that visibly deforms if the bearing breaks and the separable portions contain any broken parts. A further, lower bearing can be held by the bottom wall of the frame portion. Fastening means such as bolts on a surrounding ring secure the housings in place.

Abstract: An overload coupling includes an automatically positioned frangible portion to replace a just fractured frangible portion. A first coupling member caused to rotate by the power take-off of a tractor, or the like, has a rotary advancing spring connected thereto which can be hand wound to bias a removable magazine for the frangible element carried by a housing mounted on the first coupling member so as to be rotated by the advancing spring. A second coupling member is journalled on the first coupling member and drivingly connects to an agricultural implement or the like. It further connects through the frangible element to the first coupling member. The first coupling member defines a guide for the end of the frangible element, a portion of which is received in a slot or opening in the second coupling member.

Abstract: An implement has rotatable soil working members that are driven to rotate about upwardly extending axes. The members each have a downwardly extending carrier that is releaseably connected to a driven shaft, and spaced apart soil working elements mounted along the length of the carrier. The elements are spaced apart by spacing pieces and the lower elements are fastened to their respective carriers by one or more bolts that pass through the lower pieces. At least one element, preferably the lowermost element, has obliquely extending portions that exert upward pressure on the soil being worked at different levels.

Abstract: A mowing machine which extends laterally of a tractor and is connected to the lifting device of a tractor which has a frame and two rotors driven through gearing from the power take-off of the tractor. Each rotor includes a hollow tube driven by gears in the frame which causes the rotor to rotate and each rotor carries two cutter members which are driven by rotation of the rotor and through meshing with a stationary gear mounted from a stationary tube which is coaxial with the hollow shaft in the rotor. Six cutters extend from each cutting member and are thus rotated in a direction opposite that of the rotor at a substantially greater speed. A plate member extends from each hollow shaft which has tines connected thereto for moving crop cut by the cutters under the frame and to the rear. The rotors shield the cutters through about 180 degrees of their rotation. Swath forming members are connected to the frame to receive cut crop moved to the rear by rotors whereby same is formed into a swath.

Abstract: An implement mounts a plurality of working members through couplings, each coupling having a first member that can turn relative to a second member, upon overload. A shear pin normally prevents relative turning between the two members until overload and the pin is mounted on a holder that is releaseably connected to the coupling. The pin is in severable portions, one portion being sheared upon each overload and the remainder of the pin being automatically advanced to re-establish operative connection between the members when the latter are again in operative alignment.

Abstract: A putter wherein the shaft between the grip and the head includes three folding guide ribs which can be pivoted to a position flush with the shaft or extending outwardly therefrom at right angles for the purpose of surveying a golf course green between the hole and the golf ball. Optionally, a level indicator can be included in one or more of the ribs. The ribs are secured relative to the shaft by a surrounding threaded ring in both the flush position and the outwardly extending position. In one embodiment, the ribs extend from only one side of the shaft, and in another embodiment, from both sides.

Abstract: A soil working member is journalled in the bottom of an elongated implement frame portion and driven to rotate about an upwardly extending axis. The member includes a horizontal support, that normally is rotated adjacent the frame portion bottom, and tines depend from the support. Each tine extends through the support to a fastening, such as a nut, adjacent an upwardly extending screen. The space between the screen and the fastening is occupied by a protective element, such as a cap or a rib, that prevents stones or other hard debris, from lodging in the space and damaging the bottom of the frame portion and/or support. Cooperating strips can be secured to the frame portion bottom to cooperate with the elements.

Abstract: A multi-purpose cargo shipping container having provision for optional individual unit use or plural interlocked use. On the one hand the individual unit may be utilized for carrying relatively high density cargo, while on the other, a pair of interlocked units forming a container may carry low package density cargo. The units are modular to permit more efficient utilization of the cargo stowing area in ships, rail cars and motor carriers.

Abstract: An implement is connectable to the lifting hitch of a tractor and at least one rotary tool is driven to rotate about an upwardly extending axis. The tool or a trestle frame has an overload connection that allows the tool or frame to pivot to an inoperative position upon overload. The tool can be a blade on a carrier part that is pivoted to a support part on a spoke and a shear pin interconnected to prevent such pivoting unless tripped by overload. The parts can have a discharge arrangement that ejects the sheared pin portion from a recess in one part. Upon adjustment of the tool, the pin remainder can effect reconnection. In another embodiment, the trestle frame is coupled to a three point hitch and the implement can be tripped through a pivot connection, including a strut made up of two shaft parts, one of which holds a shear pin and the other receives a pin portion near the junction of the parts. The pin element normally prevents relative pivoting of the implement relative to the tractor connection.

Abstract: An agricultural machine, such as a haymaker, for the displacement of stalks, comprising a movable air-permeable screen and air displacing means arranged to induce a pressure difference across the screen thereby to cause stalks to adhere to the screen under the effect of suction. In a preferred embodiment, a blocking member is disposed to prevent the application of suction at one region of the screen to allow stalks adhering to the screen to be deposited. The air displacing means may be arranged to provide an air cushion under the machine to support the machine above the ground.

Abstract: A method and apparatus for monitoring particulates which are borne by a surrounding gaseous medium, such as found in smokestack or the like, through interception of the particulates by a hot filament having a bias potential in the range of about 100 to 1000 volts whereupon each particulate decomposes into a burst of ions which is collected by a nearby electrode at ground potential, by counting those bursts which produce a predetermined total charge and, at the same time, measuring the DC electric current produced by the bursts and other ion exchange between the hot filament and the electrode. The filament operates at a temperature level wherein infrared and visible radiations are emitted, such radiations being monitored by a phototransistor which receives the radiations.

Abstract: Methods and apparatus for mass analysis of molecular constituents of liquids, including minor constituents, in which an electrospray technique produces electrically charged droplets which divide and evaporate to form gaseous ions of the molecular constituents. The ions are then drawn through suitable differential pumping and focusing arrangements into a mass-to-charge analyzer. A charged capillary tube extending into a small chamber couples a liquid chromatograph or other source of liquid with a mass spectrometer, the electrospray technique being applied in the small chamber as a result of a charged liquid discharged from the capillary tube.

Abstract: An agricultural tractor having at least four side-by-side pneumatic rear tires which provide a relatively narrow path of travel, there being a narrow rear portion of the tractor's body having about the same width or less as seen in plan of each of the tires and which is centrally disposed between the tires. A three-point lifting device and towing bar extend rearwardly from the rear body portion and the lower links of the lifting device or bar part extend normally outwardly relative to the body of the tractor in the vicinity of the adjacent central tires to function as a scraper for mud or other material which accumulates on the tires in use. The towing bar which extends rearwardly from the bottom of the rear body portion is rectangular as seen in plan with its sides adjacent to the internal side walls of the two central tires wherein it also acts as a mud scraper, such towing bar being at a level above the ground of about thirty to forty percent of the tire's radius.

Abstract: A spreader which is for fertilizer or seed is adapted to be carried by a three-point hitch of a tractor, the spreader having two side-by-side hopper portions, each hopper portion having eight triangular-shaped wall parts terminating in a circular flat part through which the shaft of an underlying ejector disc distributor extends and connects to an agitator which is rotated in each hopper portion. A variable sized opening is provided in each flat part and such openings are commonly controlled by a lever at the front of the spreader within reach of the tractor's operator. Each hopper portion is funnel shaped and centrally under the spreader between such funnel shaped portions a transmission is mounted on the frame of the spreader, such transmission being in a casing which is adapted to receive, via a shaft extending therefrom, the power take-off shaft of a tractor.

Abstract: A rake machine has two rake wheels that are driven to rotate about upwardly extending axes. Each member has a rim and groups of tines are pivoted to the rim. The tines can be pivoted from lower, crop working positions to raised, inoperative positions. A respective tine engaging device on a holder can be set to intersect the tines during rotation thereof and displace same upwardly against spring bias. A latch engages each of the inoperatively positioned tine groups until centrifugal force overcomes the resistance and the tines pivot outwardly and downwardly into operative positions. The devices of the rake wheels are linked to a lever which can displace the devices to protective positions for the tines. The rake wheels are displaceably mounted along the length of a transverse beam and the beam is linked to a coupling trestle by a parallelogram linkage that can be set to reposition the rake members.

Abstract: An amusement game that has a flat board with a central pair of axes providing a fulcrum and spaces on either side of the axes. Playing pieces of different weights are received in respective openings in the spaces and the fulcrum is elevated to allow tilting of the board in either direction when the pieces are unevenly distributed. Each side has at least one marked zone of spaces, which zone is preferably T-shaped.