Abstract: According to this invention there is provided a soil cultivating implement comprising a plurality of downwardly extending tines arranged in a transverse row and rotatable ground engaging members that are located in front of and behind the row of tines with respect to the intended direction of operative travel of the implement, at least one of the rotatable ground engaging members being in the form of a roller which is mechanically driven during operation, said roller being disposed to the rear of said row of downwardly extending tines and comprising a number of longitudinal elements which extend in the direction of the axis of rotation of the said roller.

Abstract: A structural element constituting a panel for a floor, wall or roof of a space defining elongated box-shaped prefabricated section which includes a rectangular concrete slab with a peripheral rectangular frame of beams. A reinforcement network is attached to the frame beams. With I-beams constituting the frame beams, one side of an upper flange is cast within the slab, such flange being connected to the reinforcement network. Recesses are provided at the corners of the slab to receive upright extensions affixed to the top of the upper flanges of the I-beams, such extensions being adapted to receive for attachment columns or other components of the section. The recess provided for the extensions may be spaced therefrom and being filled in with a concrete or other plastic type material when the further component is received on the extension. The extension may extend above the slab without a recess. A covering material may be applied to the top of the slab and folded over its edges.

Abstract: A cultivating implement has an elongated frame portion and soil working members journalled in the frame portion to rotate about upwardly extending axes. Each soil working member has a single downwardly extending tine that is spaced from a shaft that defines the corresponding axis of rotation. The upper ends of the shafts of the members are secured to pinion gears and the gears of neighboring shafts are meshed with one another so that a power take off connection to a central pinion drives all of the pinions and adjacent soil working members rotate in relatively opposite directions. The members are staggered in two straight transverse rows so that their axes of rotation are arranged at the corners of an imaginary zig-zag line when the implement is viewed in plan and the members of a leading row are rotated in common in a direction opposite from those members of a rear row. The tines of the members in each row are preferably orientated in the same direction.

Abstract: A soil cultivating implement is structured to work soil across a broad path and includes a frame that can be towed when hitched to trail substantially behind the rear of a prime mover. The main frame supports a central frame portion and an outer frame portion is pivoted at each lateral end of the central portion. Each frame portion is elongated with a corresponding group of soil working members being rotatably mounted on upwardly extending axes. The frame portions and groups of soil working members are located side-by-side in a row that extends transverse to the direction of operative travel. For transport purposes, each outer group is pivoted by a hydraulic system to an upwardly tilted position to narrow the implement's width. Ground wheels are hydraulically interconnected to the frame and positioned at the rear of the central portion to sustain essentially all of the implement's weight. The height of the implement frame is adjustable with the wheels.

Abstract: A false floor assembly of square panels is supported on pedestals above a foundation. The panel corners rest on the pedestals and the adjacent sides of neighboring panels between pedestals are secured together by releasable ties that pass through the sides of each neighboring panel. The area below the panels is accessible by simply removing the ties and lifting one or more panels from the assembly. Loads applied to any one panel in the assembled floor are resisted by neighboring panels and the floor remains substantially flat without uneven deflections.

Abstract: A building constructed of five prefabricated space-bounding elongated parallelepiped sections with a roof having four sides shaped substantially like a truncated pyramid with a single chimney projecting through the truncated portion and the angle of incline of the roof sides being reduced in the areas adjacent its perimeter. The sections are each constructed with like frameworks of metal beams and connected in a side-by-side relationship to form a rectangle as seen in plan. All heating and plumbing facilities are in the center section and the necessary vents therefor lead through the aforesaid chimney so that additional openings in the roof are not required. The center section also has roof supports connected to and across the upper portion of its framework of metal beams near where the chimney projects so as to be pivotable from a horizontal position for transport to a vertical position where it is secured to support the roof about the chimney.

Abstract: A cultivator has groups of soil working members positioned in a row that extends transverse to the direction of travel. Each group includes a plurality of tined soil working members and a drive system that rotates each group as well as the individual soil working members of each group. The drive system is connectable to the p.t.o. of a tractor and comprises an elongated drive shaft that is geared to the central shaft of each group and a sun pinion of each central shaft is meshed with planet pinions on the shafts about which the soil working members rotate. The pinion gears of each group are housed in a circular disc-shaped casing so that the entire casing of each group rotates about its central shaft during operation. A forward coupling member is attached to the frame for connection to the tractor and a rear support roller provides support to regulate the working depths of the soil working members.

Abstract: A cultivator has an elongated beamed frame and a plurality of soil working groups pivoted to a forward beam by at least one parallelogram linkage. The groups are pivoted to turn about pivot connections, that define horizontal axes that extend transverse to the direction of travel, responsive to ground undulations. Driving connection to each group is obtained through gear boxes mounted along a support that extends transverse to the direction of travel, between forward and rearward beams of the frame and each group is rotated about an axis defined by an upwardly extending shaft that is engaged by a transverse driving shaft housed in the support. The support can also be formed by elongated frame portions that are mounted side-by-side with driving shafts mounted on the tops of the frame portions.

Abstract: A belt drive system comprises a drive belt extending between driving and driven shafts. The belt has a flat part, and a rib extending from one surface of the flat part into an annular groove formed in each of the shafts. The grooves are of complementary cross-section to that of the rib, but are wider than the rib so that during operation of the drive system, one side only of the rib engages the adjacent side of the grooves, and the other side of the rib is spaced from the adjacent side of the grooves.

Abstract: A building of prefabricated elongated box-shaped sections wherein several are connected along their longer sides. The roof has a roof portion for each section. Roof portions for side sections are hinged to supports outboard along the section's longer outer and upper edge, such roof portions being pivotable from the horizontal for transport to their ultimate inclined position. An I-beam is mounted along each portion's inboard edge with supports between it and the underlying section's top near its inboard side. A hoist member supported by the I-beams spans across the intermediate space. With one intermediate section, its roof portion is hinged providing two equal width parts folded together for transport. It is hoisted from a connection near the hinge and two furtherhoisting members place each roof part's lower edge on the I-beams (openings provided where hoist members bear thereon). So situated, the I-beams support the intermediate roof portion with the hinged located at the roof's ridge.

Abstract: A roller member structured to support a cultivator type implement and compress worked soil includes spaced apart generally vertical supports on a central shaft. The supports have holes that receive elongated rod elements and position same helically around the shaft to form the outer periphery of the roller. The elongate elements can be removed and replaced by two or more groups of shorter elongate elements that span only two and/or three supports and the elongate elements can be in pairs that are offset from one another around the shaft so that a minimum number of elements are needed.

Abstract: A prefabricated section for a building having a concrete slab floor with a concrete rim elevated relative thereto and spaced inboard a relatively short distance of the slab periphery. Walls are provided which are supported by metal beams which extend upwardly from the rim and have adjacent wooden beams. A ceiling member is provided which is supported by girders which are supported, in turn, by the metal beams. The girders also support the roof so that it is spaced a substantial distance above the ceiling. Insulation is provided immediately above the ceiling and against the inner wall sheets, the insulation being spaced from the roof and outer wall sheets. The upper ends of the metal beams have hoist connection members for receiving through closable openings in the roof hoisting cables and hooks for raising and moving the section. The walls, ceiling and roof are composed of materials which are light in weight compared to the concrete slab so that the center of gravity of the section is low.

Abstract: A rectangular panel manufactured for inclusion in prefabricated building sections having a steel frame of beams in with top and bottom horizontal flanges extending inwardly and flush of the top with a concrete floor slab and on the bottom with a ceiling member, the space between same receiving electrical conduits and the like mounted on the floor slap or ceiling member or both. The longer beams are connected by ribs having approximately a Z-shaped cross-section. At each corner of the panel an opening is provided for a vertical steel tube, each opening being defined in part by recesses in the adjacent flanges to which the tube is welded. A jig plate is provided within the panel to surround the tube together with the corner structure and a castable fireproof material is introduced between the tube and jig plate on the outer sides and between the tube and the beams proximate the corner, apertures being provided in the flanges for this purpose if necessary.

Abstract: A soil cultivating machine or rotary harrow has a row of tined soil working members that are driven about upwardly extending shafts. Further soil working or cultivating members between the driven members are mounted for free rotation about axes also located in the same row which extends transverse to the direction of travel. The further members have tines or blades that are supported on respective arms that extend forwardly and are journalled on vertical shafts at the front of a frame portion. The arm of a pair of blades or a pair of freely rotatable tined members is pivotable to and fro between limit stops to avoid obstacles in or on the ground. The tined members are freely rotatable about upwardly extending axes and the bladed members are freely rotatable about horizontal axes to assist in shedding weeds and other debris.

Abstract: A bracket has a base or back that can be attached to a support, and spaced-apart, substantially vertical projections or flanges extend out from the back. The flanges are load-bearing and spaced apart to leave two side-by-side U-shaped recesses of unequal width. The recess of greater width is dimensioned to receive the two flanges that define the recess of lesser width when an identical and second bracket is positioned opposite the first and the flanges of the two brackets interfitted. Thus, a bracket pair is formed with their wide and narrow recesses being interfitted. At the bottom of the narrow recess, a captured nut on an apertured tab is positioned to receive a threaded screw or bolt from above. A strip with holes bridges the upper edges of the flanges of both brackets of the pair and screws can be passed through the holes between the flanges to engage the nuts at the lower ends of the narrow recesses.

Abstract: A haymaking machine has a pair of rotatable rake members that are driven to turn in relative opposite directions about upwardly extending axes, towards one another to pass crop between them. Outwardly extending tines on the rake members define circular paths that intersect or are closely adjacent one another during operation. Beginning at the front of the rake members, with respect to the normal direction of travel, a pair of crop feeders are positioned to guide crop between the rake members and towards the intersecting paths of their tines. The feeders comprise downwardly extending elements that can be curved or configured to shed crop adjacent the ground, near the rotating tines. Further feeders of similar structure are positioned to the rear of the forward pair but within the paths traced by the tines, when viewed in plan. The feeders can be adjustable in a vertical direction and/or deflectable against spring opposition to accommodate heavy crop.

Abstract: A soil cultivating implement with a row of soil working members extending transverse to the direction of travel is constructed to work a broad path of soil but with less than normal power input. Each soil working member has a support with a tine holder at each side of its axis of rotation. Rigid tines extend downwardly from the holders to work the subsoil and further tines are mounted on each holder to work only the top soil, above the rigid tines. The rigid tines are positioned closer to the axis of rotation than are the further tines and only the latter of adjacent soil working members work overlapping paths. The further tines can be of resilient, circular construction and connected to a holder by respective integral spring coils that are interconnected by a tie portion. The further tines and their coils are located at the upper and lower ends of the holder and secured to the holder by the same fastening that secures the rigid tine in that holder. The fastening can be a clamping plate and protective screen.

Abstract: A rotary harrow has a transverse frame, including an elongated hollow beam, and rotatable soil working tined members are mounted on upwardly extending shafts journalled in the beam. A supporting elongated roller has arms that adjustably connect to the frame and the roller also extends transverse to the direction of travel, at the rear of the beam. Vertical plate supports on the top of the beam extend upwardly and rearwardly and a tool bar is interconnected to the rearmost extremities of the supports so that seed drills, etc. can be secured in place to the rear of the soil working members. The tool bar also extends transverse and across the width of the frame.

Abstract: A rotary harrow has a frame for attachment to a prime mover, a portion of the frame having generally vertical shafts with soil-working members journalled therein and arranged side-by-side in a row that extends transverse to the direction of travel. Each soil-working member includes a generally horizontal support, the inner end of which is connected to its respective shaft and the outer end extends radially from the shaft with a tine holder for retaining a single upright tine. Adjacent soil-working members are driven in opposite directions and the working members can be arranged in groups which are positioned out of phase with respect to one another.

Abstract: Projections in door hinge plates penetrate and bear against cooperating slots in opposite plates of door hinges to prevent a locked door from being removed from a doorjamb by removing the hinge pintles.