Abstract: Improvement in the art of exhibiting fish comprising a vertical aquarium consisting of a transparent fish tank and a metal cowl, the aquarium requiring the usual accoutrements for proper operation thereof, the fish tank standing vertically and having a height greater than its width or depth, the cowl standing vertically and having a height, width, and depth greater than that of the fish tank, the cowl covering the accoutrements and silencing in part the noise from the operation thereof, the cowl having a cutaway portion in the front and side walls thereof so as to expose the fish tank to view, and the fish tank having radiused front corners and no seams therealong so as to present from the front and sides thereof a full and unobstructed view thereof, the cowl having vertically extending sheet metal stanchions at the rear corners of the fish tank, the cutaway portion extending continuously around the sides and front of the cowl from one rear corner stanchion thereof to the other, whereby the cowl is wholly dev

Abstract: A mounting plate is formed from plastic and with a first one of its planar surfaces substantially flat and otherwise formed to be affixed to a dental model. A connecting rib, formed to extend out from the other planar surface of the mounting plate, and along its entire length, has a modified "T" shaped configuration with a vertical leg extending up from the planar surface and a cross-arm extending out to each side of the leg so as to form a groove to each side of the vertical leg between the planar surface of the plate and the opposed surface of the cross-arm. A slot is formed through the central rib of each articulator with a shoulder extending from each wall of the slot into the slot but so as to leave a narrow passage sized to receive the vertical leg of the modified "T" shaped rib.

Abstract: A pea harvester incorporates a threshing device and a system, known per se, which maintains the device in a fixed orientation in space irrespective of the ground contours. To feed the threshing device a series of conveyors is pivoted so that these can continue to supply the threshing device without crop loss even if a local ground irregularity deflects a forward pick-up reel which discharges on to a first one of the conveyors. The pick-up reel has a width at least equal to the widest track of the harvester wheels and the first conveyor has substantially the same width. A number of cleaning stages is incorporated and peas are received from the threshing device by two inclined vibratory conveyors the inclination of each of which is adjustable. A hopper assembly for peas is arranged forwardly of the threshing device and includes an auxiliary hopper which automatically takes the place of the main hopper when the latter is moved to its discharge position.

Abstract: An articulated-limb toy animal has a pair of front limbs and a pair of hind limbs articulated to the trunk of the toy animal. In each limb pair, the limbs are joined to each other by a respective horizontal axis cylindrical stem and the trunk is provided at the front and hind portions thereof with seats for a pivotal engagement with the stems.

Abstract: A mowing machine has an elongated beam that supports side-by-side rotors with pivoted cutters positioned to cut overlapping paths in front of the beam. The rotor units include an upper rotatably hub with pivoted blades and lower bodies which house corresponding driving shafts. The units are releaseably fastened to the beam and in one embodiment, spaced apart supporting elements are fastened to the front side of the beam and a unit is fitted and bolted between elements. In another embodiment, the body of each unit is hollow so that the beam can be passed through units and the latter abutted to one another and secured in place with a single bolt. The driving shaft of each unit is interconnected to adjacent driving shafts by sleeve connectors that form an elongated drive shaft that is parallel and in front of the beam.

Abstract: A pet shelter utilizes a hollow housing having a pair of openings on one wall and a large opening in another opposed wall thereof. One of the pair of openings is provided with a transparent plastic-like hinged door, with the other opening adjacent thereto provided with a slip hinge arrangement for mounting a transparent window or screened panel thereover. The opposed opening is covered with a pair of slidable screen-like doors. An awning is disposed over the pair of adjacent openings, one of which is provided with a cleated ramp. The pair of openings may be maintained in a closed position if desired. The shelter is installed having the awning and ramp and pair of openings on the outside of the building permitting ingress and egress of the pet to the shelter-like structure of the housing. The pet may be precluded from entering the interior of the house by closing the sliding screen panels.

Abstract: A lure for training racing dogs in which the lure is conveyed along a track just ahead of the dogs. The lure, which includes a hollow cylinder of sufficient strength to prevent crushing by the dogs, is suspended for swinging and a limited up and down movement. An air operated sound producing device is supported within the cylinder and, in turn, supports the upper end of an extendible bellows having a weighted lower end whereby endwise shaking movement of the lure will cause a sound to be emitted simulating an animal in distress or being chased. The cylinder is encased within a resilient compressible casing surrounded by a tough flexible skin to simulate the feel of the body of an animal.

Abstract: A simplified combination animal call has a casing divided into identical upper and lower half sections held together by a securing elastic band. Symmetrical channels of different widths spaced longitudinally along half sections provide airways through the casing whose openings act interchangeably as mouthpiece openings along one side of the casing and sound-emitting bells on the opposite side. Air blown through any such airway vibrates a second elastic band which spans each airway to produce an animal-like sound. Multiple airways of different widths make available several different pitch ranges at once. Changing either the size or tension of the vibratory elastic band changes the pitch that is available at each slot. Finally, the pitch produced may be dynamically varied either by changing the tension on the vibratory elastic or by compressing the mouthpiece side of the casing while the device is in use.

Abstract: A rock picker in the form of a wheeled vehicle for travel over a field that has rocks scattered superficially and/or near superficially therein, comprises a wheeled chassis that supports two coacting, endless chain conveyors of draper chain type having their working runs in confronting relationship and widths extending transversely of the chassis. One of the conveyors is elongate and disposed below the other, which is relatively short. The short upper conveyor has its working run of widespread, substantially V configuration, with the vertex of the V extending transversely of the lower conveyor at or near its lower end, which is disposed at or near ground level, thus forming entry and exit bights therewith. The forward, entry bight receives rocks lifted thereinto by a scraper blade, which is mounted on the frame immediately in advance of the conveyors as a ramp leading substantially smoothly into the throat between the two conveyors.

Abstract: A row crop attachment adapting a combine for efficient harvesting of soybeans and similar crops, has crop-receiving structure disposed forwardly of the cutter for catching beans prematurely separated from the stalks by action of the combine cutter. Multiple, spaced, crop-receiving divider pans for support on the combine in generally underlying relation to the beans define a number of stalk-receiving throats extending fore-and-aft of the combine ahead of the cutter; respective opposed pairs of crop-catching wings are pivotally mounted on the pans for swinging movement in a generally horizontal plane to and from positions closing the throats. In preferred forms, each pair of wings is yieldably biased toward its throat-closing position to maintain the width of the throats at the minimum dimension required to allow passage of stalks to the cutter, whereby the crop-receiving structure presents a substantially continuous expanse for catching prematurely separated beans.

Abstract: An arch block building system to simplify the building of arches in architectural construction and in toy block sets is provided by this invention. The arch block building system, which consists of only four basic shapes, simplifies the builder's construction of arches for use in bridges, entranceways and other structures, and provides an educational tool to teach the principles of arch construction through its use in toy block sets.

Abstract: A multirow sugar-beet harvester has a chassis displaceable along the ground above several rows of sugar beets and is provided with a plurality of pairs of extractor plows which dig up the sugar beets in several rows simultaneously. A grillwork wheel is provided tangent to one of the plows of each pair and is rotated to pick up sugar beets from the plows and displace them backwardly into the transversely extending and elongated inlet mouth of the horizontal stretch of a conveyor. A vertical stretch of this conveyor then transports the sugar beets upwardly and drops them into a bin on the chassis.

Abstract: A haymaking machine with at least one drum rotating about a substantially vertical axis and carrying flexible resilient elements of rubber or plastic in plate-like or bifurcated or various other forms and adapted to lift and impel cut fodder without the use of metal tines.

Abstract: A vibrator utilizing a disposable bite probe subject to vibrations of the vibrator is used to seat crowns, bridges and the like. After cement has been applied to the underside of the crown and the prepared tooth surface and the crown initially positioned, the bite probe is received between the crown and opposing teeth in the patient's mouth or dentist's finger in the absence of opposing teeth, the patient or dentist applying pressure on the bite probe. When the vibrator is energized, the vibrations express excess cement working the crown down into a proper and secure position on the patient's tooth. Continued pressure on the bite probe by the patient and/or dentist holds the bite probe in position, the vibrator itself being disconnected from the probe and the probe itself being retained in a stationary position for a sufficient length of time to assure proper seating of the crown as the cement hardens.

Abstract: A grass catcher having a container and lid operatively attached to the lawn mower to receive grass cuttings in a grass catching mode and nestably related on the lawn mower in a storage mode for shipping. In the grass catching mode the lid is mounted to the lawn mower handle and includes downturned side flanges provided with a longitudinal guide track. The container is relatively deep and includes a rearwardly formed chute portion and upper side flanges engageable with the guide track, so that the container can be selectively separated from the lid. In the storage mode the container is inverted and disposed over the lawn mower motor assembly with the chute disposed rearwardly. The lid is nestably received by the container and can be shipped with the lawn mower in a container only slightly larger than that required to ship the lawn mower itself.

Abstract: The present invention relates to a sonic toy device, and particularly to a gun-like toy. In accordance with the invention, a pair of closely spaced rolls are mounted on a frame to define a nip therebetween. A hand crank is provided for rotating at least one of the rolls and an elongate, stretchable plastic film defining a plurality of longitudinally spaced sealed air pockets is mounted in driving connection in the nip between the rolls, the thickness of the pockets exceeding the spacing of the rolls at the nip whereby, on rotation of the rolls, the strip is progressively advanced through the nip and the pockets are burst, with the accompanying production of a sound at each burst.

Abstract: A multi-row crop header for a forage harvester having a plurality of forwardly extending dividers to provide crop passageways therebetween, the inner ends of said dividers being adjustably connected to a transverse frame member to vary the spacings between said passageways, and a rotatable feed assist roller mounted adjacent the inner end of the outermost divider to assist in guidng down crops picked up by said dividers to the inner ends of said passageways for discharge therefrom and prevent hairpinning of said down crops from jamming said header thereby.

Abstract: Gathering conveyors of the forage harvesting header deliver upstanding, severed crop stalks by their lower ends to an outlet toward which all conveyors of the header converge. The upper ends of the crop stalks are guided and gathered laterally inwardly by apparatus above the conveyors, and a transversely disposed knock-down bar just forwardly of the outlet leans the stalks back toward the front end of the header as they approach the outlet so that the stalks tend to enter and pass through the outlet in a butt-first condition. The knock-down bar is mounted so as to yield upwardly under the influence of crops passing therebeneath in the event that the volume of the crops is so great that they could otherwise not pass through the restriction formed by the knock-down bar on the one hand and the conveyors on the other hand.

Abstract: A horse blanket and hood having improved strap and strap closure assemblies for connecting the blanket and the hood to a horse.

Abstract: A rotary mower having an inverted housing with a discharge opening formed in the rear surface thereof, the opening having a cover plate which is hinged at the rear edge of the housing and biased into a normally closing position. The plate has a pair of integral arms projecting beyond the hinge at its lateral edges. A pair of parallel guide plates are secured to the housing in positions closely alongside the respective arms, the guide plates having angled but parallel slots extending forwardly and downwardly therein. A grass catcher is provided having a mouth dimensioned to receive the cover plate and including a support bar spaced horizontally above the mouth, the support bar, upon insertion into the slots, serving to engage the arms for progressively swinging of the cover plate into a horizontally extending position within the catcher.