Abstract: Disclosed is an improved core drill and a method of detachably coupling the same to a power driving unit to expedite the removal of a core therefrom. This is achieved by equipping the rear end of the drill stem with a fixedly attached externally threaded bushing. A coupling sleeve has internal threads at either end matable respectively with the bushing threads and the threaded drive shank of a power driving unit. This sleeve and the core drill are readily detached as a unit from the power drive thereby permitting the rapid removal of the core from the rear end of the drill rather than past the cutting ring at its front end.
Abstract: Disclosed is a pressurized fuel carburetor system for an internal combustion engine. The sole movable component in the air intake passage is an accelerator-actuated throttle valve device operatively associated with a single fuel metering valve and with an automatic manifold pressure sensor operable to enrich and lean the fuel-air mixture. A fuel pressure regulator cooperates with a fuel pump and with a fuel return restricter connected to and governed by changing intake manifold pressure conditions to regulate fuel pressure at the inlet side of the fuel metering valve. A normally closed fuel check valve prevents flow to the fuel metering valve except when the accelerator is depressed. Pressurized fuel is subjected to multiple vaporizing stages including a first stage as it expands in escaping through the metering valve, thence through a set of small ports into a second expansion chamber and thereafter through a multiplicity of jets into flowing air hot exhaust gases in the air intake passage.
Abstract: Disclosed is a pneumatically powered automatic apparatus and method for subdividing one or more loaves of dough supported in a partitioned single use, nonmetallic tray at a processing station intermediate the opposite ends of a conveyor. A tray of dough is introduced into the apparatus as a tray of subdivided dough exits onto the conveyor. The dough divider functions to draw the skin of the roll of dough from the upper and lower sides thereof permanently into closely spaced relation between adjacent subdivisions of dough thereby leaving the subdivisions connected solely by a web which is readily frangible when the dough is baked. The dough subdivider operates dry and free of lubricant. Trays of dough exiting from the apparatus are maintained frozen and wrapped until ready for the oven at either a local or a distant consumption site.
Abstract: Disclosed is a dispensing facility for differently colored skeins of yarn featuring a yarn tender operable to retain the yarn ends loosely captive and free of entanglement while being inverted as a group as a patterned crocheted workpiece is inverted at the end of each row of stitches. The yarn tender and the crocheted workpiece are both inverted in the same direction through one half a revolution preparatory to starting the next course of stitches. In one embodiment, the facility includes a compartmented storage receptacle for multiple skeins of colored yarns.
Abstract: Disclosed is a heat insulating module and a method of making the same for use in lining a high temperature chamber. The module has a main body formed of layers of refractory fibers positioned side by side and impaled on at least one rigid tie member spaced inwardly of one lateral edge of all layers with the ends of the tie member secured to one leg of L-shaped mounting members with the other legs thereof extending outwardly beynd the end layers of the module and coplanar with the adjacent lateral edge of said layers. The layers may be interconnected by folding a unitary blanket of fibers and, in either assembly mode, the layers are held snugly compressed by at least one encircling tie band.
Abstract: Disclosed is a method and apparatus for shipping and safeguarding cargo utilizing a conventional bulk cargo container in combination with one or more unique knock down containers constructed for efficient and convenient stowage therewithin. The smaller containers permit cargo consigned to different destinations to be segregated and safeguarded throughout transit and to be shipped and handled as a unit over all common portions of the shipping route. Additionally the smaller containers can be handled individually by simple mobile or light capacity equipment and can also serve as indoor or outdoor weather tight, tamper-proof storage in areas controlled by individual users. Other features of the smaller containers include stackability and built-in provision lengthwise of the upper and lower lateral corners of channels receptive of lifting devices and useful in loading and unloading these containers relative to a larger container, or the like.
Abstract: Provided by this invention is a lightweight demountable folding trash bag support suitable for supporting plastic bags and the like with the bottom thereof resting against the ground or floor and having components thereof held detachably assembled without need for tools. When disassembled the components are compactly packagable for storage and shipment by mail or the like.
Abstract: Disclosed is an automatic apparatus for removing a surface layer of predetermined thickness from objects of varying curvilinear contour advancing past a multiplicity of floatingly supported power-driven dressing rollers positionable automatically by the changing contour of the objects. The combined width of the object being dressed and the dressing rollers are so distributed that each dresses only a separate strip. Uniformity of strip thickness is achieved, in part, by controlling the pressure of the dressing rollers against the object and, in part, by utilizing a shoe beside the dressing rollers effective to limit the thickness of the dressed layer and to tilt the axis of the rollers in either direction in response to the changing transverse contour of the object. Cuttings are removed by suction air flowing past each dressing roller.
Abstract: Disclosed is a heat insulating module for use in forming a lining for a high temperature chamber. The module has a main body formed by a blanket of refractory fibers folded into pleats held compressed against one another by a pair of spaced apart tubular members traversing the opposite end portions of all except the two end layers and spaced inwardly near the cold face of the module. The ends of the tubular members are secured to the upright legs of respective L-shaped mounting members with the other legs thereof lying in a common plane generally parallel to the cold face of the module and anchorable to respective fastener studs securable to the wall of the chamber being insulated.
Abstract: Enclosed is an improved snap-on heat insulating jacket for ducting and method uniquely designed for simplicity and ease of assembly. Resilient heat insulating material is laminated to a flexible sheet plastic main body provided with interlocking snap-on seam members positioned, when closed, for concealment by an external guard flap coated on its inwardly facing surface with pressure sensitive adhesive thereby to embrace the ducting with a cover having a substantially continuous smooth outer surface free of foreign matter collecting crevices and the like.
Abstract: Disclosed is a unitary re-enterable shielded jacket assembly for a plurality of insulated conductors provided with a dielectric spacer of nonconductive netting arranged and effective to provide a layer of air cells between the jacket shielding and the embraced conductors thereby to stabilize the impedance of the cable assembly from end to end thereof. One lateral edge of the dielectric spacer is attached to the jacket adjacent the inner shielding layer thereof and is sufficiently wide for its opposite edges to overlap when the jacket seam is closed. The dielectric spacer may be pleated lengthwise thereof to provide pockets for separate ribbon cables, the pleats being interconnected by hinges formed by groups of severed transverse strands which groups are separated by at least one unsevered transverse strand.
Abstract: Disclosed herein is an instructional apparatus for underwater electric welding. The workpiece to be welded is clampable to a submergible bench mounted in a water tank on a power adjustable bench controllable by the trainee's feet while his hands are located in gloves mounted in the tank wall. Foot controlled valve and water pump auxiliaries enable the trainee to free his hands from the gloves quickly by dumping the water and to refill the tank after he has replaced his hands in the gloves. Pilot lights indicate the energized or non-energized condition of each auxiliary.
Abstract: Disclosed is a knock down golf swing training aid equally suitable for use indoors and outdoors. The main frame is formed of tubular components including a large area base assembly, and a vertically adjustable upright post mounted medially of the rear edge of the base assembly, outriggers for the base assembly, a safety harness, and a plurality of belt loops adapted for assembly loosely about either or both ends of the player's torso while practising golf swings.
Abstract: Disclosed is an improved back flash preventing device for a powder spray torch wherein the improvement comprises a structure constructed to thwart attempts by the user to block the outlet end or atmosphere vent of the back flash preventer. This is accomplished by providing the outlet of the vent with a guard so constructed as to prevent the user closing the outlet with his finger, a covering tape or the like.
Abstract: Disclosed is an improved device for dispensing individual labels slightly adherent to a roll of tape in end-to-end relation. The tape issues from a one piece container via a passage underlying the container cover and through a tubular passage extending through a guard flange along the container sidewall beneath the cover flange whereby manipulation of the tape in dispensing a label cannot open the cover. Before entering the tubular passage the tape makes a sharp bend over a protruding lip on the top edge of the container sidewall which initiates and peels the leading label from the tape and presents the advance end for grasping between the operator's fingers.
Abstract: Disclosed is a method of making a unitary re-enterable shielded jacket assembly for a plurality of insulated conductors provided with a dielectric spacer of nonconductive netting arranged and effective to provide a layer of air cells between the jacket shielding and the embraced conductors thereby to stabilize the impedance of the cable assembly from end to end thereof. One lateral edge of the dielectric spacer is attached to the jacket adjacent the inner shielding layer thereof and is sufficiently wide for its opposite edges to overlap when the jacket seam is closed. The dielectric spacer may be pleated lengthwise thereof to provide pockets for separate ribbon cables, the pleats being interconnected by hinges formed by groups of severed transverse strands which groups are separated by at least one unsevered transverse strand.
Abstract: Disclosed is a percussion musical instrument comprising a drum stick formed of a cluster of wooden rods secured together at one end to provide a handle, the remainder of the rods being free of restraint.
Abstract: Disclosed is a workpiece collet mountable in a lathe spindle provided with a master stem on which any one of a set of workpiece stops may be mounted and which stem includes a support readily assembled to the collet repeatedly in a predetermined position. The stops differ in length and/or radius to accommodate workpieces of different terminal configurations. This permits one stop to be substituted for another with assurance that its outer end will be spaced a predetermined distance from the adjacent end of the collet when the master stem is reassembled to the collet. Both ends of the master stem are similarly threaded and finished with stop surfaces permitting the stem to be inverted and used to mount a selected one of the set of stops.
Abstract: Disclosed is a system and method for recovering energy from elevator apparatus and utilizing the recovered energy for useful purposes. This is accomplished by selectively coupling a hydraulic pump to the elevator drive when surplus energy is available thereby to pump and store pressurized fluid in accumulator devices. Such fluid, when above a predetermined pressure, is utilized to deactivate electrically driven units and drive the same by hydraulic motors supplied with fluid from the accumulator devices. Additional energy is recovered from heat present in the hydraulic fluid down-stream from the hydraulic pump and utilized beneficially.