Abstract: A motor operated circular miter chop saw is pivotally mounted on a generally horizontal axle pivot bolt about which it rotates in a vertical plane with the axle pivot bolt being carried by a cast support base structure provided with means allowing lateral adjustment of one end of the axle pivot bolt and vertical adjustment of the other end. Angular orientation of the work piece is provided by an angularly adjustable fence rotatably carried by the cast base support structure with the fence having lugs cooperating with an arcuate slot or groove provided in the cast base support structure. The cast base support structure is also provided with an arcuate slot to provide clearance for the circular saw blade while an adjustable stop is provided carried by the cast support base to preclude the circular saw blade from contacting the cast support base structure. Spring means are also provided for biasing the saw to an upwardly pivoted position.

Abstract: In a lockstitch sewing machine, a bobbin thread replenishing mechanism for selectively rotating the bobbin to wind replenishment thread thereon from a needle by means of a spindle selectively engaging the bobbin for rotating the bobbin with the machine looptaker wherein a slip clutch provided with an elongated slot is positioned around a flattened end portion of the spindle generally within a central aperture of a bobbin thread control cam. The slip clutch has an enlarged lower flange which rests on the looptaker base and rubs against the thread control cam so that by this arrangement the spindle will be driven with the looptaker by way of friction coupling of the slip clutch between the looptaker and the thread control cam. Should sufficient resistance of the turning of the spindle arise, the looptaker and thread control cam turn freely relative the slip clutch thereby preventing overwinding of the bobbin.

Abstract: A hammer drill having a bypass switch which is activated by the selector ring to prevent the drill from operating in the hammer mode by shunting the reversing switch. This is a precaution to prevent damage to the clutch teeth which are designed for ratchet action when the tool is operated in the forward direction, but will lock down in reverse to stall tool or damage the mechanism. In the drill mode, the bypass switch connects the reversing switch in circuit with the on-off switch.

Abstract: A portable, power operated circular saw having a housing or frame and a base plate pivotally connected at its forward end to the saw housing or frame for swinging movement about an axis parallel the axis of rotation of the blade mounting shaft is provided with new and improved base plate inclination adjustment means comprising an adjustment arm having an elongated arcuate portion provided with an elongated arcuate slot generally concentric the pivotal axis of the base plate and a clamping member extending through the arcuate slot for clamping the adjustment arm selectively at a fixed position relative the saw housing or frame, the clamping member being actuated by relative rotation between a pair of camming members having opposed cooperating interacting inclined ramps or cam surfaces, at least one of the cam members being adapted to be rotated by an operating lever.

Abstract: A housing for a power tool having an access aperture for mounting the brushes of a universal motor which is journaled in the housing. Tabs hold the brushes within a recess, and screws are threadedly connected to the housing to clamp the tabs. A cover is substantially "U" shaped and has posts extending inwardly in superposition to the screws to prevent the screws from backing out due to vibration or other loosening thereof.The cover fits between an upper and a lower housing extension and provides a smooth continuous outer configuration, through which vent slots permit the passage of cooling air.

Abstract: In a power driven, portable surface treating machine, a mechanism is provided for clamping a surface treating material to the back plate of the surface treating machine. The clamping mechanism comprises a back plate having a clamp seat at one end thereof extending horizontally across substantially the entire length of said one end of said back plate, and a device for clamping one end of the surface treating material. The clamping device includes a manipulative over-center camming lever pivotably supported on the back plate, the lever having a power arm section which has a finger grip at its rear and a camming arm section offset laterally from the forward end of the power arm section.

Abstract: Sewing machine stand having an adjustable height telescoping pedestal and adjustable link rods connecting a treadle with the sewing machine wherein the link rods are provided with remotely operable locking means which can be operated simultaneously with the pedestal height locking means.

Abstract: A mount system for mounting sewing machines provided with hinge pin sockets adjacent an edge of the work supporting surface, comprising a pair of elongated equal height mounting brackets having pins adapted to be inserted into and locked within the hinge pin sockets, the brackets being adapted at their other end to be mounted to a machine supporting surface or shelf, together with a machine rest also adapted to be mounted with the machine supporting surface to sustain the front of the sewing machine bed, the system thereby locating the work supporting surface at the desired height independent of the machine bed height or depth through the fixed hinge pin socket distance relationship, and the fixed height of the bracket pin on the bracket.

Abstract: Saw guide apparatus for longitudinal or near longitudinal saw cuts in an elongate workpiece has a base from which at least one saw guide column projects upwards. The base and said column provide respective horizontal and vertical bounding faces which are coplanar so as to define a vertical support plane against which the elongate workpiece can be placed to depend below the base. Location means are provided to set the position of the workpiece transversely to a saw guide plane defined by said guide columns so that the position of the saw cut in the workpiece can be controlled correspondingly.

Abstract: A disposable diaper having an absorbent pad attached to one face of a fluid-impervious back sheet formed from two plies of fluid-impervious material which are united along at least two opposed edges. The two-ply back sheet serves as a disposal bag or sheath within which the used diaper can be encased by turning the back sheet inside out to fully enclose the soiled diaper therewithin.

Abstract: A pallet sized unitary load is formed of a plurality of full height separately and tightly bound stacks of containers. Each bound stack of containers is suitable for handling by itself, as a unit, by, for example, a two-wheeled hand-truck. The bound stacks are tightly strapped or wrapped and bound together to form a stable pallet sized load. Each bound stack is formed of a number of layers of containers of product with groups of one or more layers preferably being grouped together in units about the size of ordinary shipping cases and placed in a tray. This allows a stack after it has been unwrapped to serve as a display unit, with product visible above, and in the case of clear trays through, the tray wall and also allows the approximately case sized tray loads to be handled separately.

Abstract: An internal support member for a shrink wrapped package of identical articles arranged in a layer or layers on a base comprises a single generally rectangular sheet of relatively rigid material formed with at least two preferably six parallel folds that extend vertically when the sheet is stood on edge on the base. The folds define compressive load-bearing side portions which are disposed longitudinally and laterally between the articles in the layer to provide a stable non-tilting support for a similar package stacked thereon.

Abstract: Location apparatus for making saw cuts in workpieces has a saw guide and support means for a workpiece to set a side face of the workpiece at predetermined positions to the saw guide. In various forms of the apparatus, said positions are angularly adjustable in horizontal and/or vertical planes. Means are also described for setting the workpiece to a predetermined location transversely of the sawing plane defined by said saw guide.

Abstract: A venting closure is provided which retains the contents of a screw-top container yet prevents distortion of the latter under the influence of a pressure differential applied from without. It consists of a cap fitted with a gasket which is supported circumferentially around the entire rim of the container by a plurality of flanges which at no point have a pitch greater than that of the screw threads; and which are disposed in relation to one another so as to permit air that has passed from the outside of the container along the container threads to enter the space between the gasket and the underside of the cap. The gasket normally seals against a central boss depending from the cap underside; however when external pressure exceeds that within the container by a predetermined level it momentarily lifts the gasket from its seat, admits air into the container through a central hole in the gasket, and tends to equalize the pressures.

Abstract: Legless panty having elasticity around the leg openings thereof which is differentially tailored, as by the application of elastic bands thereto with portions of the elastic bands being prestretched to varying degrees during application, in a manner to gather only the edge portions adjacent the leg opening which in use lie generally along the wearer's groin while leaving smooth and ungathered those edge portions adjacent the leg openings which in use overlie the hips, to thereby provide a smooth outside appearance, reduce bunching under the buttocks and riding up thereon together with self-adjustable easing of the leg openings enabling expansion thereof outwardly from the groin to accommodate thighs of differing sizes and providing a pouch-like non-binding crotch portion firmly held in position by the elastic bands along the groin while readily accommodating natural bodily movements, without pulling, as during walking, sitting, bending, and the like.

Abstract: Tamper-proof closure seal for containers such as bottles, cans, and the like and methods of tamper-proofing and manufacturing tamper-proof closure seals which preclude inadvertent openings of product containers, readily indicate to prospective consumers that a product container has been opened or tampered with and which yet still enables easy intentional opening of such product containers.

Abstract: A regenerative air preheater with cylindrical regenerator chamber and sealing frames at its axial ends with adjustable automatic thermal compensating devices for uniformly maintaining a constant sealing gap by adjustable means under different heat distortions of the regenerator chamber. The sealing frames are movable on spring-loaded pins and the axial travel of said frames is automatically equalized to the axial distortions of the regenerative chamber by said automatic thermal compensating devices in such a way, that they may follow the axial distortion movement of the regenerator chamber in a constant distance of a predetermined sealing gap, which had been adjusted, said compensating devices are controlled by their temperature-responsiveness, preferably in accordance with the mean temperature difference across the mass. As shown, they are made up by partially compensating thermal expansive devices, tied to a lever linkage with adjustable means.

Abstract: Gas treatment such as scrubbing or purificatory heating is carried out by treatment means in permanent gaseous communication with one end face of a rotary regenerative heat exchanger. At the other end face conventional inlet and outlet gas collecting arrangements are provided. A plenum chamber beyond or containing the treatment means allows for flow reversal of the gas treated, so that it may repass through the heat exchanger. Since collecting arrangements are provided at only one end face, the concomitant sealing arrangements need only be provided at that end face, and the rest of a support structure for the heat exchange mass (and which may also support at least some of the further treatment means) may be made of materials chosen solely with a view to resisting the physical and/or chemical conditions likely to be encountered.

Abstract: Absorptive device having a breatheable backsheet resistant to aqueous liquid passage, wherein the backsheet has bosses and small apertures at the apex of the bosses, the apexes of the bosses being located adjacent the absorbent body with which the backsheet is associated.