Abstract: This invention provides improved gas-fired heater means for supplying heat to a space, such as a room, house, building, vehicle, or the like.

Abstract: An impedance matching network circuit of either a T, or Pi-type circuit which minimizes impedance change at the input of the matching network as frequency and/or the load impedance change. This is accomplished in T and Pi-type networks by using a fixed value capacitor or inductance at either the input or output of the network instead of the commonly used variable capacitor or inductance. Further, a switching device can be employed in the T or Pi circuit to selectively reverse the positions of the variable inductance and variable capacitance relative to the input and load sides of the T or Pi circuit.

Abstract: A cap having a crown formed of a plurality of crown segments located in side-by-side relationship and having a visor attached to the crown brim and extending outwardly therefrom. The crown segments are seamed together adjacent to their contiguous edges. The visor is laterally centered on and attached to the front of the crown brim and the junctures of the peripheral edge of the visor and the crown brim are proximate to two of the crown segment seams, such that the visor is centered between those two segment seams. A strip of seam tape is located beneath the segment seams on the inside of the crown. A stay of stiffening material is located under each of the two crown seams proximate to the junctures of the visor and the crown brim and is disposed between the strip of seam tape and the inside surface of the crown.

Abstract: A rotary, impulse water sprinkler having a rotatable water dispensing head includes a water nozzle for directing a stream of water with a movable splash plate extending over the outlet of the nozzle to selectively deflect the water stream issuing from the nozzle to control the distance that the water stream will project from the water nozzle outlet. The impulse water sprinkler has a pivotally mounted impulse device with a vane at one end thereof adapted to be selectively disposed in the water stream from the nozzle outlet thereby causing the dispensing head to rotate. A rotation speed control device is operatively associated with the impulse device to control the amount by which the impulse vane is disposed within the water stream.

Abstract: A mining drill having a generally cylindrical, hollow bit holder and a cutting bit attached to the holder. The holder has a diametrically located web and two side wall surfaces projecting from opposite longitudinal sides of the web. A pair of cutting bit locating inclined surfaces are located on the web, each one of the inclined surfaces slanting toward a different one of the two wall surfaces. The cutting bit is sized and configures to be received in the space between the wall surfaces and has a flat bottom surface which rests on the web. The cutting bit is formed with two beveled notches, each notch receiving a different one of the inclined surfaces located on the web for locating the cutting bit in a predetermined relationship to the two side wall surfaces. The cutting bit is attached to the bit holder by solder between the cutting bit and side wall surfaces of the bit holder.

Abstract: A dovetail fixture for clamping and holding two workpieces and for guiding a cutting tool whereby mortises are cut in one workpiece and tenons are concurrently cut in the other workpiece. The fixture includes a guide template having a plurality of spaced apart fingers formed along at least one edge of the template and defining blind-ended spaces between its adjacent fingers. As the cutting tool is moved along the edge of the template having the fingers, mortises are cut in one workpiece and tenons are cut in the other workpiece.

Abstract: A panty-type undergarment comprising a waistband connected to a body segment having front and back panels which terminate at leg openings, with a crotch segment located between the leg openings and a crotch opening situated between the leg openings and separating the crotch segment and the front panel along an edge of each extending generally parallel to the waistband, wherein the front panel adjacent to the crotch opening has first fastener means and the crotch segment adjacent to the crotch opening has second fastener means releasably engageable with the first fastener means so that the wearer can selectively open and close the crotch opening of the undergarment by selectively peeling apart and pressing together the first and second fastener means.

Abstract: This invention relates to a dado cutting circular saw arrangement and more particularly to an arrangement comprising a pair of saw blades which are adjustable from a minimum dado width cutting position wherein the blades are juxtaposed relative to a plane perpendicular to the rotational axis of the blades. A cam arrangement adapted to be interposed between the saw blades is employed for selectively adjusting the position of the blades to cut dados of varying widths. The cam arrangement causes the blades to pivot from their minimum dado position, juxtaposed to the plane, about adjacent peripheral pivot points in a manner that selectively adjustably positions the peripheral edges of the blades diametrically opposite from those adjacent pivot points outward relative to the plane and, thus, provide a range of dado cutting widths.

Abstract: A novel and useful pants-type outergarment having a crotch opening and a padded fly attached to the interior of the outergarment on one side to the crotch opening seam line, beginning at a front placket of the outergarment and extending to the back waistband. First fastener means are provided on one side of the padded fly to cooperate with and releasably engage second fastener means provided on the inner thigh seam line adjacent to the crotch opening so that, when the two fastener means are engaged with each other, the padded fly cannot roll up while the garment is being worn, and third fastener means are provided to selectively close together and open apart the opposite sides of the crotch opening.

Abstract: This invention provides novel transmission means for interconnecting a rotary output shaft of drive means to a rotary input shaft of means to be driven by the drive means. Basically, the novel transmission means of the present invention comprises gear means mounted on base means for rotary movement relative thereto, with those gear means comprising first, second, third and fourth gears and each of those four gears including a hollow, fluid-receiving, radially inner hub portion that is rotatably mounted to the base means and a radially outer portion that is divided into plural segments, each having a radially outer end that is provided with teeth and a radially inner end comprising an arm mounted within the hollow hub portion for slidable movement relative thereto both towards and away from the radial center of the hub portion.

Abstract: This invention provides an improved vibratory storage pile discharger unit for promoting the downward flow of material from a storage pile of a flowable material, such as coal, limestone, woodchips, sulphur and the like, through an opening in a generally horizontal surface on which the pile is supported and into another area located beneath that pile-supporting surface.

Abstract: This invention provides a novel device for shock mounting a lamp within housing means for a lamp that is particularly intended for use with motorized vehicles, such as farm tractors and other vehicles designed for cross-country travel, as well as over-the-road trucks and the like. Basically, the novel device of the present invention comprises a hollow generally frustoconical resilient member having a long-central axis extending between centers of its opposite ends, with one of the opposite ends of that member including means for retaining, supporting and locating a lamp in a predetermined position, and the other of the opposite ends of that member including means for fastening that member to the lamp housing means, and that member including plural segments positioned around the long-central axis and extending between the opposite ends of that member, with each of the plural segments being generally serpentine in its longitudinal extension with respect to that axis.

Abstract: This invention provides a novel bracket for shock mounting a bulb within a housing for a lamp that is particularly intended for use with motorized vehicles, such as over-the-road trucks and the like. Basically, the novel bracket of the present invention comprises: a serpentine strip having polygonal apertures provided at its opposite ends and a bulb-receiving socket generally centrally located therein, the radial center of which socket is offset from the long central axis that extends between the apertures in the strip. Preferably, the strip is connected to the lamp housing by fastener means, portions of which are respectively passed through the polygonal apertures in the strip and prohibit pivotal movement of the apertures thereabout. It is also desirable that the fastener means portions comprise a pair of studs projecting from the lamp housing and being complementary in size and shape to the polygonal apertures in the strip through which they are respectively passed.

Abstract: This invention provides a hand tool of the type including a shaft having on one of its two opposite ends a handle and on the other of its two opposite ends socket means for selectively receiving and holding a removable tool tip with improved means to be used in combination with it for storing a plurality of removable tool tips. Basically, the novel tool tip storage means comprises a generally cylindrical storage member having a bore along its long central axis that is mounted on the tool shaft for slideable movement between the tool handle and socket means. The storage member also has a first surface that faces the socket means and is engaged by yieldable means that encircles the tool shaft and extends between and is compressed between said first surface and the socket means.

Abstract: This invention provides a novel method of and an apparatus for transferring heat to food articles. Basically, the novel method of the present invention comprises: supporting food articles on support means located within a chamber; and forcing a heated liquid heat-transferring medium through means located adjacent to said support means. More specifically, one presently preferred form of the novel method of the present invention involves holding cooked meat food articles at a temperature above 140.degree. F. and within a temperature range of .+-.5.degree. F.

Abstract: This invention provides novel apparatus for transferring heat to food articles. Basically, the novel apparatus of the present invention comprises: a chamber; support means for supporting food articles within the chamber; reservoir means for containing a liquid heat-transferring medium; heater means for heating the liquid medium contained in the reservoir means; pump means fluid-connected to the reservoir means and to radiator means located adjacent to the support means through hollow conduit means for circulating the liquid medium between the reservoir means and the radiator means; and control means connected to the heater means for controlling to within .+-.5.degree. F. the desired temperature to which the liquid medium is to be heated and maintained by the heater means.

Abstract: This invention provides novel apparatus for accelerating the emptying of railroad hopper cars and the like. The invention comprises: a rigid frame fixedly mountable through a base to a pair of generally horizontally-spaced-apart rails upon which the wheels of a railroad hopper car can be movably supported, with the frame including an upright section from which there generally horizontally extends towards the rails a hollow spool connected to a vented source of pressurized fluid; and an excitor connected to the spool through an inflatable yieldably resilient sleeve that performs dual functions of moving the excitor generally horizontally with respect to the frame into and out of contact with a side of the hopper car and also vibration isolating the excitor from the frame.