Abstract: The invention relates to a new and improved tire lift/carrier featuring a reel assembly comprised of a rotatable spool formed of thin metal plates abutted one to the other in a side by side relation, a portion of which plates defines a cavity in which one end of a line is held captive, the other end of which line is adapted to extend to releasably connect to a load which places a tension on this line in use. In the preferred embodiment described the spool has a single track within which the single line in connection with the spool is constrained to wrap directly on itself. The connection of the line to the spool is such that the spool may be rotated in either of opposite directions and in either case the line will wrap smoothly on itself. In the preferred embodiment illustrated the spool has a press fit gear through the medium of which it is driven in either of its opposite directions of rotation.
Abstract: Rotary bending apparatus provides a die assembly particularly advantageous for use in press brakes featuring a punch embodying a separable part so constructed and arranged as to render it per se capable of providing the punch with any one of a plurality of operating surface portions which differ in configuration by changing its relative orientation and disposition. It also features, in cooperation with and in opposed relation to the punch, an assembly providing a rotary bending tool comprising a notched rotor contained for rotation in and with respect to a saddle, which is contained, in turn, by and for movement relative to a base member in a construction and arrangement wherein the relative position of the saddle and the rotor may be precisely and quickly gaged by a segment of the sheet material to be worked between the punch and the rotor of the opposed rotary bending tool.
Abstract: A portable LP gas heater includes a combustion chamber the discharge end of which is open and unobstructed and the inlet end of which is defined by a rear head plate having a central primary air inlet into which projects, to a limited degree, a cylindrical fuel nozzle. The projected extremity of the nozzle which positions within the combustion chamber mounts a transversely disposed baffle which is parallel to and spaced preferably about one inch from the rear head plate. Fuel exits from and about the nozzle immediately adjacent and upstream of the baffle. The baffle has a size which permits it to be introduced to and removed from the combustion chamber by way of the primary air inlet. The rear head is further distinguished by a single group of apertures located adjacent its outer periphery in a substantially ring-like pattern.
Abstract: Apparatus associated with a component part of the drive system of a turbine assembly reduces the power applied to its drive rotor in a direct and substantially instantaneous response to the speed of its rotation rising to a predetermined level. A turbine starter for an engine embodying this apparatus comprises a housing for its rotor and the drive system of which it forms a part, a flow path for a gaseous fluid, delivered from a source, to power the rotor and a control device in connection with the drive system a component part of which moves radially thereof and, when its speed of rotation rises to a predetermined level, triggers a substantially simultaneous restriction of the flow path through which fluid can be applied to power the turbine rotor, thereby to produce a resulting reduction of the speed of rotation of the turbine drive system. If under such conditions the starter is engaged with a related engine, it will automatically disengage.
Abstract: Temperature control apparatus comprising a system of conduits or pipes at least a portion of which are perpendicularly related and connected by means accommodating the movement therethrough of heat exchange fluid feature interconnecting means which are free of weldments. In a preferred embodiment of the system so provided, at least a portion of the conduits or pipes are embodied as integral parts of upright and/or horizontal members fabricated of heat conductive material. The preferred material of said conduits or pipes and the members of which they form a part is aluminum. The interconnecting means include elements which have a plug-like form and embody one or more passages for flow therethrough of the heat exchange fluid.
Abstract: A rotor is distinguished by parts including a radially innermost part and a radially outermost part which is actually a separate element. The two parts are normally coupled for their conjoint rotation by pins anchored to project radially from the innermost part and freely into apertures in the radially outermost part. The pins provide a bearing mount thereon of the outermost part which is fabricated to radially expand and contract in correspondence with the speed of rotation of the rotor and to have a benign failure in the location of one of the apertures upon excessive speed of the rotor. By virtue of such failure the radially outermost part opens and expands to be braked by engagement with the particular surface most adjacent its outer periphery. This rotor is particularly advantageous for use in providing a turbine drive unit, in which event its power transmitting outer peripheral portion is formed by turbine buckets.
Abstract: As originally fabricated the rotor of the invention is a unitized structure an outer portion of which, including its outer peripheral surface, is designed to separate shortly after the start of its rotation. As illustrated, this outer peripheral portion is a ring-shaped structure which is initially incorporated by an interference fit which establishes it in a fixed bounding relation to the rotor part immediately inward thereof. At the point in time that said outer portion of the rotor is separated, guide means are rendered operative to maintain a drive coupling as between the outer and inward rotor parts and such guide means then serve as bearings accommodating the radial movement of the outer separated part in correspondence with its changing radius in response to changing speeds of rotation of the rotor. Any failure of the rotor is benign in that at such time the rotor exceeds the designed limit of its speed of rotation the outer part expands sufficient to brake against its adjacent shield or housing.
Abstract: A system for obviating chance damage in starting a diesel engine due, for example, to hydraulic lock utilizes a two step starting cycle and includes means for applying power to initiate and maintain a drive of the engine for starting thereof and associated controls rendered operative on a drive of the engine to sense the speed of crankshaft rotation and interrupt said application of power in response to a pre-set speed thereof which is substantially less than that required to start the engine to induce thereby a reduction of said speed and in response to such reduction a reapplication of said power. A portion of said controls is conditioned to automatically respond to a predetermined extent of rotation of the engine crankshaft to nullify ability of the controls to thereafter functionally interfere with the engine drive, whereupon there is an increase in the speed of crankshaft rotation to a level sufficient to induce a starting of the engine and its normal operation.
Abstract: A disposable lid for pans, pots and other receptacles, particularly advantageous for use in ovens, comprising a plurality of layers of flexible material the outer of which is a foil and the inner of which is a thin film of plastic, known as a food service film, having the property to per se releasably attach to the surface of an article on a light pressured contact therewith. The lid is simply created by bringing sheets of the respective materials of its plurality of layers to a superposed contacting relation and applying thereto a relatively light pressure and tension causing the facing surfaces of such sheets to substantially coextensively contact and attach under conditions of ambient temperature and without application of intervening adhesive material.
Abstract: A wick heater comprises a housing the top and front panel of which are so constructed and interrelated with each other and the remainder of the housing to provide for their relative expansion and contraction in a manner to avoid warping, buckling or distortion or any undue stress on the housing or its component parts during operation of the heater. The top of the housing comprises a frame and inserts, a principal insert being interconnected with and for expansion and contraction relative to the frame and to position directly above the chimney of the heater and the area encompassed by its backing heat reflecting surface. This principal insert has a unique pattern of slots the bounding edges of which are flanged and a portion of which are oriented in directions at right angles to other of said slots to lend both strength and stress accommodation to the top of the housing.
Abstract: Apparatus providing an improved stabilizer pad assembly or foot construction for outriggers or stabilizer arms provides a housing containing a stabilizer pad in a manner to provide for a three dimensional relative movement therebetween under shifting load conditions. The housing of such apparatus is shell-like in character and has openings in its side and bottom, the side opening accommodating a slip fit therein of a stabilizer pad and its containment without any positive interconnection thereof to the housing. The containment of the pad is achieved by the application of a readily releasable rod to and across the side opening to the interior of the housing. The opening in the bottom of the housing provides for the dependency therethrough of an anchoring element forming part of the pad, which may be reversible in character.
Abstract: A device for controlling the temperature of rooms in a building comprising curtain walls having a skeleton made up of columns and horizontal members to which facade elements and, if required, window surfaces are secured so as to be substantially free from heat bridges, comprising a temperature-control facility substantially in the form of a pipeline system in which a heat transfer fluid flows, said pipeline system being constructed and arranged to dispose inside the room and adjacent the skeleton of columns and horizontal members and relative to the skeleton so as to produce a thermal coupling between the skeleton and the temperature control facility. In certain applications the temperature control facility is disposed at a relatively short distance from and in facing relation to the skeleton in an arrangement producing a close radiation coupling between the skeleton and the temperature control facility.
Abstract: A heater including a generally cylindrical shell defining its housing arranged in a very closely spaced relation to the outer periphery of its combustion chamber assembly and its fan device as it bounds a plenum chamber therebetween. The combustion chamber assembly has its discharge end adjacent the discharge end of the shell. The relative configuration of the outer peripheral surface of the combustion chamber assembly and that of the discharge end portion of the shell creates therebetween a passage through which the fan device, on energization thereof, produces a very high velocity flow of a thin layer of air which, on discharge, is throttled and abruptly and sharply driven into the center of the flow from the assembly. The effect of this is to moderate and influence a relative uniformity of the temperature of the discharge and rapidly project it outwardly of and considerably beyond the heater.
June 4, 1982
Date of Patent:
April 17, 1984
Robert S. Shaftner, Norman D. Chambers, Michael A. Kagan, Eugene C. Briggs
Abstract: A bending and forming device is disclosed having an operating head and its holder features a holder which is a multi part structure including a saddle for seating the head and a releasably connected gib, a limited portion of which is adapted to releasably bear on and hold the head to and for a rocking or rotative movement thereof on its seat. The head is preferably a cylindrical body having a groove the length of its outer peripheral surface, the bounding walls of which groove determine the operation to which the head may be applied. The retention device is connected to the saddle so as to enable an easy adjustment of its position to accommodate variation in the dimension of the operating head or wear of the related parts. In preferred embodiments the saddle affords a concentrated load bearing surface for the head provided by relatively narrow, adjacent and relatively spaced, longitudinally extended, strip-like bearings.
January 13, 1982
Date of Patent:
March 6, 1984
READY Tools, Inc.
Robert J. Gargrave, John K. Thompson, James F. Comstock
Abstract: This application discloses a system of construction that uses as its main component, a flat panel member similar to a standard 2.times.8 timber with both edges beveled at a 45.degree. angle in opposite directions with an interlocking female recess in one of the 45.degree. sections and an interlocking male extrusion on the opposing 45.degree. section. These components may be assembled to provide: (1) a straight narrow wall by reversing adjacent panels and sliding male extrusions and female recesses together, (2) assembly of two adjacent panels to form an angle by sliding male extrusion and female recess together without reversing the sections, (3) forming a U channel by sliding three sections together in a similar manner, (4) sliding four sections together in a similar manner to form a square, hollow beam section.
Abstract: Control apparatus includes means defining a housing having a hollow and a piston device mounted for reciprocating movement in said hollow under the influence of pressure fluid applied alternately to each of opposite portions of its surface, characterized by means for transmitting a signal of a predetermined travel of said piston in one direction, said signal transmitting means being constructed and arranged to utilize applied pressure fluid in its signalling function.