Abstract: An elevating type scraper for earthmoving purposes having an open-fronted bowl with a scraper blade along the leading edge and with a rearwardly inclined elevator for sweeping the loosened soil from the blade into the bowl, the back of the bowl and the base of the blade being fixed to the bowl. The bottom of the bowl is enclosed by front and rear floor members, each of the floor members having a pair of side plates which are pivoted within the sides of the bowl so that each floor member is pendulously supported for fore-and-aft swinging movement about a transversely extending axis. An actuating means is provided for swinging the floor members between the normally closed, or collecting, position and the open position for dumping the contents of the bowl. A striker blade associated with the front edge of the rear floor member, and which projects downwardly from the bowl when such floor member is in its open position, serves to level the material dumped from the bowl.

Abstract: Methods for positive displacement casting and/or for positive displacement bonding and, more particularly, for automatically locating the bonding apparatus with respect to the workpieces, locking thereon, and, thereafter forming, on a continuous, reproducible basis, fusion bonds devoid of structural, electrical and cosmetic defects between two or more workpieces by moving a heated electrode into the area to be bonded so as to uniformly heat and melt the portions of the workpieces to be bonded while, at the same time, displacing substantially all of the molten material from the area to be bonded into a storage area or reservoir surrounding the heated electrode where such molten material is maintained in its uniformly heated molten state, and then retracting the electrode so as to permit the molten material to return to the cavity formed by the electrode in the workpieces where such molten material is allowed to cool and solidify, thus forming a flawless bond between the workpieces--thermal or fusion bonds are

Abstract: A sheet delivery arrangement including a conveyor for depositing sheets on a pile and a jogger for squaring up the pile, the jogger having an associated interceptor member spaced slightly above the pile for intercepting the curled edge of a sheet deposited on the pile to prevent such curled edge from being inserted between the jogging element and the pile. The interceptor member is coupled to the conveyor for movement between an interposed position phased with the arrival of a sheet and a retracted position clear of the pile in which the engaged edge of the sheet becomes fully supported on the pile. In the preferred embodiment the interceptor member is mounted upon the jogging element for movement with the latter, and in an alternate embodiment the interceptor member is independently mounted for movement synchronized with the arrival of successive sheets.

Abstract: A flush toilet bowl of water reservoir containing and pedal operating type which is compact, easy to assemble and convenient and economical in operation is provided. The toilet bowl comprises a bowl unit including a bowl and a water reservoir formed between the bowl and an outer case and a supporting unit separable from the bowl unit and having a dropping port normally closed by a slidable valve and communicated with discharging port in the lower part of the bowl. The supporting unit comprises a diaphragm pump communicated with the water reservoir in the bowl unit for pumping its water to inner wall of the bowl, means for sliding the valve to open the dropping port, means for operating the diaphragm pump and treading pedals for operating the respective means separately. A further pedal is provided for simultaneously operating the treading pedals.

Abstract: A delivery arrangement including a conveyor and take-off mechanism for delivering a series of printed sheets onto a pile in which nozzles are provided distributed along the width of a sheet, for directing a jet of air to the underside in a direction opposite the sheet movement. A guide plate spaced under the sheet and extending upstream from the nozzles serves to confine the jet. Formed on the surface of the guide plate are a plurality of upraised islands, spaced from one another over the area of the guide plate, the islands presenting plateau surfaces at approximately the same elevation above the guide plate. Consequently, when a sheet is sucked downwardly by the jet of air it engages the plateau surfaces in light frictional engagement to apply frictional drag to the body of the sheet. The source of pressurized air for the nozzles includes means for automatically varying the pressure, and hence the frictional drag, in accordance with the speed of the press.

Abstract: A self-drilling fastener includes a shank having a drill tip integrally formed on one end thereof and a head on the other end. The drill tip is defined by two concave grooves formed one on each side of the shank and intersecting with two planar heels formed on the end of the shank to define two cutting edges. Each of the cutting edges is formed with a positive rake angle along the entire length thereof with the rake angle increasing in magnitude upon progressing outwardly along the cutting edge and toward the periphery of the shank. The axes of the grooves are straight and form an acute included angle bisected by the axis of the shank. The heels also intersect at an angle bisected by the axis of the screw, the edge of intersection of the heels defining a chisel edge at the tip of the shank.

Abstract: The present invention relates to a counter feed mechanism as used in digital clock comprising a cam member adapted for advanced rotation and another cam member adapted for delayed rotation both arranged on a common axis so that the advanced rotation of the first-mentioned cam member under a drive force transmitted from a clock mechanism twists a coil spring stretched between both cam members, which is, in turn, charged with energy for rotation of the second-mentioned cam member and, upon rotary displacement of the first-mentioned cam member by a predetermined angle, said second cam member is released to be rotated at once so as to advance a rotary wheel step by step.

Abstract: A series of ion exchangers are connected in parallel in a water treatment system and are electrically interlocked against simultaneous regeneration. After an exchanger regenerates, it is held in standby status and is automatically returned to service use when another exchanger begins its regeneration cycle.

Abstract: Sheet coating means for a printing press including a back-up cylinder and form cylinder having an associated fountain, the fountain having a fountain roller rotating adjacent the form cylinder. Also rotating adjacent the form cylinder is a first form roller which is coupled to the fountain roller via a dosing roller. The fountain and its associated rollers are mounted upon a subframe having provision for (a) shifting the fountain roller into liquid transmitting contact with the form cylinder and (b) shifting the first form roller into liquid transmitting contact with the form cylinder thereby, selectively, to change the length of the liquid transference path from the fountain to a sheet carried by the back-up cylinder in accordance with the drying speed of the coating material.

Abstract: A clock "friction" for use in clocks having plastic gear wheels which permits manual setting of the hands but in which a reliable level of frictional torque is obtained without requiring use of any auxiliary parts. The centerwheel of the clock has an interference fit with respect to the center, or minute hand, shaft upon which it is telescoped, and the minute hand shaft is formed with an annular groove lying generally in the plane of the centerwheel into which the plastic relaxes and flows for maintaining the centerwheel in a desired axial position. The minute hand shaft has a setting knob, and means are provided for precluding axial shifting of the center shaft, by pushing or pulling, which might result in stripping of the plastic in the groove.