Abstract: Container flap folding apparatus and method in which closable flap containers having outwardly and downwardly prefolded front and back end top flaps are conveyed along a path, a puller at a lower position in the path contacts an oncoming container front end below the outer free edge of its front flap and is displaced to an upper position above yet adjacent the container top portion to pull upwardly and urge relatively rearwardly and fold inwardly and downwardly such flap across the top portion, a pusher upstream of the puller and at a lower position out of the path is generally simultaneously displaced into the path to an upper position above yet adjacent the container top portion to push upwardly and forwardly the back flap to locate its outer free edge relatively forwardly of the container back end, a directing mechanism, including a forwardly downwardly inclined moving belt, cooperating with the pusher forwardly directs the so pushed back flap inwardly and downwardly to fold it across the top portion, and

Abstract: There is provided herewith a marine propulsion unit which is designed for intensifying or increasing the thrust obtained by an impeller such as a propeller for standard, outboard or inboard/outboard marine propulsion systems. The unit design incorporates an axial flow or screw type impeller operating within a housing which terminates in an area of reduced cross-section which augments or intensifies the thrust delivered by the impeller. The impeller blades virtually abut the inner circumference and fill the cross-sectional area of the housing near the inlet port.

Abstract: A lighting control circuit responsive to amplitude variations related to the effects of movement on the reflection of electromagnetic energy at an ultrasonic frequency.

Abstract: A shoe having means for displaying a picture or the like comprising a saddle portion having an inner and outer wall, a window in the outer wall, a plastic element secured to the perimeter of the window; a pocket formed by joining the three edges of the window and plastic element to the inner wall with one edge remaining unattached to form an entranceway for the insertion of a display into said pocket; a shoelace carrier comprising an inner member which may be an extension of the inner wall of the saddle and an outer member; the lower edge of the inner member being attached to the upper edge of the inner wall of the saddle or being a part of said inner wall, and the lower edge of the outer member being attached to the outer wall of the saddle; an entranceway to the pocket formed between the inner and outer members of the shoelace carrier and contiguous eyelets in the inner and outer member of the shoelace carrier accommodating a shoestring whereby when the shoestring is laced through the eyelets and tightened

Abstract: A photographic camera having an objective incorporating an electrodynamic driving system for the diaphragm system, and also having a selector adjustable for a manual or automatic mode, in which the driving member for the diaphragm blades has a path limiting stop associated therewith which is selectively variable in its basic position by a manually operated diaphragm preselector ring, and which stop, in the manual mode, cooperates with a counterstop pin on the driving member to determine the correspondingly manually preselected position of the diaphragm blades, e.g. following shutter release on a camera with full aperture viewing, but which stop, in the automatic mode, is not utilized.

Abstract: Closed fluid flow system and method for producing power from an extraneous heat source, in which a receiver is maintained with a volatile heat transfer fluid medium partly in the form of liquid and partly in the form of gas,to permit the pumping of liquid therefrom by a pump to an evaporator for evaporation to gas by means of the extraneous heat source, separating of any remaining liquid residue content from such gas, compressing of the separated gas to high compression gas, expanding of the high compression gas in a prime mover to produce power, and cooling and reliquifying of the separated liquid residue content for recycling to the pump,and furthermore to permit the removing of a refrigerating control portion of the liquid from the receiver for expanding and evaporating such control portion for cooling the contents of the receiver, removing of a compensating control portion of the gas from the receiver, and compressing of the expanded and evaporated liquid control portion and of the gas control portion to

Abstract: An apparatus for supplying polishing and/or cooling liquid, including a storage container preferably removably supported on a supporting frame, a downwardly facing dished cover for the container pivotally mounted on the frame by a hinge joint assembly and having a bent-over edge whose outer peripheral dimension is slightly smaller than the corresponding inside peripheral dimension of the upper edge of the container to provide a clearance gap therebetween, with the cover supporting thereon various elements such as a discharge pipe and a pump assembly for conveying liquid from the container as well as a mechanism for varying the temperature of the liquid, and stops on the cover and hinge joint assembly, respectively, for determining the range of movement of the cover between closed and open positions relative to the container.

Abstract: Photographic camera such as a reflex camera, of the type having at least one automatic region in which the diaphragm blades of a diaphragm blade aperture system, incorporated in the objective lens arrangement connected, e.g. in front of a light sensitive element for sensing ambient light, are adjustable from an initial position corresponding to the smallest diaphragm aperture width to a diaphragm aperture width adequate for the prevailing light conditions, in dependence upon such sensed ambient light, by means of a driving member or driving ring of an energizable driving system for the diaphragm blade aperture system which is energizable with electrical current pulses, e.g.

Abstract: A measuring and dispensing cap for a container internally divided into two compartments, one compartment being a tubular section in direct communication with the container and its contents and an offset extension from said tubular section; a wall partially dividing said tubular section from said offset extension to compartmentalize the cap; an aperture in the wall of said extension for the emission of flowable materials contained therein and a slide movably covering said aperture whereby when said container is tilted from an upright position flowable material therein passes through said passage section and a predetermined amount passes into said measuring section and is maintained therein when said container is returned to said upright position for emission through said outlet means.

Abstract: Energy producing apparatus comprising an imbalance wheel mounted for energy producing rotation about a substantially horizontal axis, and which is substantially in rotational balance and defines at least two peripherally located and substantially equally circumferentially distributed electrochemical cell zones for conversion of liquid to gas, each zone having operatively opposed cathode and anode devices and operatively disposed imbalance imparting captive gas collection spaces for collecting corresponding conversion gas therein, plus a liquid feed system for feeding liquid to the zones, electrical conductor devices arranged for selectively providing a circuit of current from a source to the corresponding cathode and anode devices of each successive zone when at a selective imbalance imparting lower location in the lower half wheel portion, and a gas delivery system arranged for delivering conversion gas from the corresponding collection space of each successive zone when at the substantially uppermost locati

Abstract: Vacuum extraction recovery system assembly comprising a compartmentalized vacuum housing having a substantially air tight exterior wall, a vacuum creating mechanism in a first lateral portion of the housing interior, and a wall surface containing a constantly, directly and continuously freely open flow aperture therein and defining together with an adjacent portion of the exterior wall thereat an interior vacuum compartment in a second lateral portion of the housing interior which is laterally remotely spaced from the vacuum creating mechanism, such that the compartment is in constant, direct and continuous freely open flow communication with the remainder of the housing interior through such flow aperture and thereby constantly, directly and continuously maintained under vacuum condition corresponding to that in the remainder of the housing interior when a vacuum is created therein by the vacuum creating mechanism, for instance with the exterior wall having an access opening directly communicating with the c

Abstract: A chair back including a pair of spaced recesses for insertion engagement with corresponding projections on a chair frame, and a self-locking mechanism positioned on and connected to the back remote from the recesses for coacting locking engagement with a corresponding attachment portion on the frame, permitting self-securement of the back to the frame;a chair seat including a surface for supporting engagement with a corresponding attachment aperture-containing plate on a chair frame, and a heat deformable and peripherally outwardly heat expansible hollow longitudinal boss connected to and extending outwardly from the surface for insertion through and projection beyond the aperture and in turn for heat deformation and peripherally outward expansion in situ thereat beyond the perimetric confines of the aperture and sufficiently to bring the exterior of the boss into locking engagement with the adjacent marginal portions of the plate remote from the surface, permitting rigid securement of the seat to the frame;

Abstract: Interchangeable lens assembly having a composite two part telescoping force transmission shaft, which functions as a cocking and releasing member, which has one end engageable with the cocking member of the shutter system and the other end engageable with a camera-side drive shaft when the lens assembly is attached to the camera, and which serves for the transmission of torques, i.e.

Abstract: Process and apparatus for solidifying molten materials by pouring onto a substrate and cooling, in which undesired crystallinity is avoided by first forming a solidified protective stabilizing skin on the melt surface, e.g. by carefully controlled air cooling or dusting with powdered material, before more vigorous cooling by fluid coolant, e.g. air or water, directed against the solidified skin. Optionally, silicone liquids and/or kerosene or other hydrocarbons of lower boiling range are used in minor amounts to treat the melt before pouring to promote the formation of amorphous solidified material and provide increased hardness on aging. When using an endless belt as substrate, the plain solidification surface may be modified by superposing a skeleton framework to form selectively shaped tablet or bar molds. The process and apparatus are particularly applicable to the solidification of molten sulphur.

Abstract: A control device independent of and designed for use with professional cameras for operating an electromagnetically drivable shutter or magnetic shutter and for determining and setting exposure values, wherein the device includes a power source and means for determining and setting exposure values, both of which are exchangeably or detachably connectable operatively via the control device to the magnetic shutter and to a light measuring or metering probe, the means for determining and setting the exposure values being adjustable to operate in a plurality of selective functional modes.

Abstract: A flexible shield comprising a piece of flexible material shaped to fit into and be attached to the interior of the barrel of a retractable tip pen in proximity to the tip and having a central aperture which may comprise cross slits whose edges are adapted to move away from each other to expand the aperture when the tip is emitting from the barrel and to return to normal substantially closed position over the tip when the tip is retracted into the barrel to perform the dual function of inhibiting the passage of air to dry out the tip and to wipe the tip free of accumulated liquid build-up or dust.

Abstract: Well bore drill string shock absorber device for absorbing drill bit vibratory displacement shock, contemplating a pair of slidably, e.g. telescopingly, associated longitudinal elements, one of which is connectable to a drill string therabove and the other of which is connectable to a drill bit therebelow, such elements being interengageably interconnected for common rotation about a longitudinal, e.g. well bore, axis and for selectively limited relative reciprocal displacement longitudinally with respect to each other along such axis, and such elements together defining a shock absorber work chamber within longitudinal confinement wall portions thereof, e.g. an annular cylindrical chamber, of varying selective maximum and minimum operative longitudinal dimension and corresponding volume in dependence upon such displacement of the elements and in turn of such wall portions, and temporarily internally compressible and resilient shock absorbing means, e.g.

Abstract: Process for pelletizing sulphur by forming and solidifying molten droplets of sulphur containing dispersed therewithin an effective minor amount of a mechanical strength improving modifying additive, e.g. 4-10 ppm organopolysiloxane, kerosene, other lower boiling range straight chain hydrocarbon than kerosene, or mixtures thereof, for increasing the mechanical strength of the resultant pellets, such as by contact with water as coolant, either by feeding molten droplets of or an unbroken continuous stream of the molten sulphur-dispersed additive mixture into the water, preferably at a coolant temperature operatively below that of the molten sulphur and above its own freezing temperature and at a molten sulphur-dispersed additive mixture feeding temperature of particularly optionally between about 130.degree.-140.degree. C.; andthe resultant pellets of improved close grained, substantially amorphous structure thereby produced.

Abstract: Extensible support apparatus comprising a pair of telescoping members, e.g.

Abstract: Photographic camera shutter apparatus having at least one drivable control part arranged for reciprocation for controlling the photographic light admitted to the camera, e.g. a diaphragm aperture ring or a shutter blade ring, and an electromagnetic driving system for reciprocating the control part, including at least one corresponding assembly having opposed coacting reciprocally energizable electromagnetic field coils stationarily arranged in spaced apart relation and providing an intervening magnetic field space therebetween and movable permanent magnets arranged for reciprocation along such intervening field space in response to the corresponding energization of the stationary field coils and operatively connected for driving the control part in question concordantly for reciprocation thereof, whereby to control the photographic light admitted to the camera in dependence upon the energization of the field coils.