Abstract: This invention relates to shuttering or sheathing elements of hard expanded plastics material for construction of buildings by the concrete casing method, of the kind comprising two mutually parallel panels or slabs having a tongued and grooved form at their edges and webs interconnecting the panels. According to the invention the panel forming the outer casing is considerably thicker than the panel of the element forming the inner casing.

Abstract: A pergola having a top comprising a plurality of wooden strips aligned in parallel relationship with a bottom planar face inclined to the mutually parallel side faces so as to provide a support orientation easily determinable and effective to provide differential shading from the sun by reason of the change in inclination of the sun during the seasons of the year.

Abstract: A ceiling assembly includes a plurality of elongate, side-by-side gripping members which easily fit onto and conceal the otherwise exposed lower portions of overhead floor joists, as in a basement. Appropriately sized elongate panels fit between the floor joists and have edges supported by the gripping members, thereby forming a smooth, finished appearing ceiling which is quickly and easily installed at low cost by a home resident. Extender members may be used to drop the gripping members a short distance below the joints to accommodate cross braces and plumbing lines.

Abstract: A suspended ceiling system employs an array of stringers suspended from an overhead building support. Ceiling panels are positioned by the stringers and each panel interlocks with a plurality of stringers so that it resists upward or downward displacement relative to the stringers. If the system employs rectangular panels, they are attached to the stringers from above. If it utilizes linear wooden panels, they are attached to the stringers from below.

Abstract: A double row shingle alignment fixture is disclosed for aligning rows of roofing shingles. The fixture includes a first longitudinal panel having a grooved lower flange with a lower edge and a plurality of grooves adapted to be aligned with a first row of shingles. The first longitudinal panel further includes a second flange on the opposite side thereof for abutting with the lower edge of a second row of shingles and a plurality of first alignment pegs thereon for alignment with the slots in the second row of shingles. The fixture further includes a second longitudinal panel hingedly mounted to the first longitudinal panel along a longitudinal axis to be folded down on top of the second row of shingles after being fastened to the roof. The second panel has an upper flange for abutting with the lower edge of a third row of shingles and a plurality of second alignment pegs thereon for alignment with the slots in the third row of shingles.

Abstract: A plurality of V-shaped metal web members serve to interconnect two elongated wooden members for forming a truss or joist assembly. The two elongated wooden members are arranged so as to extend parallel to each other with a spacing therebetween. The metal web members are placed in the spacing between the wooden members and have their extremities connected to the wooden members. Each of the metal web members has connector nail plates located both at its apex and at each of its extremities. Struck out from each connector plate are a plurality of pairs of teeth with each pair of teeth leaving a corresponding slot between them. All of the teeth extend from the same face of the metal web member. Each of the connector plates at the two extremities is connected to the apex connector plate by a leg member. Each of the legs has at least one groove which extends from the same side of the metal web member as the teeth.

Abstract: A clip for securing drywall panels and like material to structural members and particularly concrete support columns and beams is disclosed. The clip comprises first and second clip members; the first clip member being adapted to be fixably attached to the structural members by means of a suitable fastener. The second clip member is adapted to slidably engage said base member and is provided with a box receiving assembly to which the drywall panels may be secured.

Abstract: A device for folding the edge of a wrapping material wound around a roll against the end of the roll. The device comprises an endless rotating means, such as a chain or a belt, at least one wheel member around which the rotating means is arranged to rotate. Pressing means pivotably attached to the endless rotating means for pressing said edge against the end of the roll when the rotating means is rotated from the circumference of the roll towards the center thereof, and driving means for driving the rotating means characterized in that the pressing means to the rotating means are such that the pressing means when in contact with the end of the roll pivot about an axis parallel with the axis of rotation of the roll (7) to an angle determined by the circumferential velocity of the roll (7) and the speed of movement of the rotating means (1).

Abstract: Method of automatically changing reels (17,20) of strip material (15-21) in packaging machines, especially packaging machines (1) for cigarettes, equipped, along a feed line (2), with an ejection device (9) adapted for ejecting from said line (2) those objects (5) to be packaged that are defective and for determining a corresponding arresting of said strip material (15-21), the method providing for the utilization of said ejection device (9), in response to an end of reel signal emitted by a sensor (26,27), for determining the arresting of the associated strip material (15,21) so as to permit the changing of the reels (17,20) with strip (15,21) stopped and the subsequent recommencing of the feed of the strip (15,21) in perfect synchronism with the packaging line (2).

Abstract: The invention relates to a method of wrapping a spool with metal ribbon, as well as to the spool and to the ribbon designed to carry out the method. The method is particularly characterized by the fact that, while the ribbon (12) is still being profiled only transversely, it is first kept tangent to the band (7) of flanges (4), then, as it is being deformed elastically, it is wound progressively and, as winding proceeds, the edges are fixed on said binding (7) of the flanges (4) by applying stresses on the median portion in such a way as to cause it to bulge outwardly.

Abstract: A method and apparatus for preventing jams in a carton coding machine or the like are disclosed. The apparatus includes a pivotally mounted coding assembly actuated by a cylinder and cooperating solenoid operated directional control valve. A photo transceiver and reflector are provided for detecting a change in article flow, such as is caused by a defective article or article jam. Control means, responsive to a detected defective article or article jam, substantially simultaneously interrupts power to the coding assembly and displaces the coding assembly from the path of the articles. This prevents the defective article from wedging in the coding assembly and jamming the machine. After a delay period, the coding assembly is returned to the operative position for coding the following articles.

Abstract: A vacuumizing and sealing operation on a package comprises initially reducing the external pressure on the package, before sealing of the package, to a value at which the flexible film covering of the package is capable of ballooning, and ensuring heating of the flexible film of the package, preferably while an intermediate pressure is maintained (at which intermediate pressure ballooning could just be sustained without excessive evacuation to reduce the thermal capacity of the circulating air). Finally the pressure inside and outside is reduced still further before re-pressurizing.

Abstract: A machine for automatically wrapping in stretch plastic film a shallow tray filled with irregularly shaped contents comprises, in sequence of operation, a horizontally directed feed table means by which articles to be wrapped are fed into the machine, a film feed station, a girth wrapping station, a side wrapping station, and a discharge or delivery conveyor for conducting a fully wrapped and sealed article out of the machine. The machine is capable of operating continuously, handling a consecutive seriatim flow of articles therethrough. The film feed station comprises a vertically reciprocable film clamp and support arm for raising a sheet of stretch film transversely across the travel path of the article to be wrapped. The article passes through the curtain of film and into the girth wrapping station, causing the lower edge of the film to be folded beneath the bottom of the article tray.

Abstract: Flexible packaging bags are sequentially air-opened one at a time at a packaging station and filled with an article to be packaged while resting on top of a packaging table, which is removable so as to expose an area beneath the table in which a stacked and wicket held supply of the packaging bags is stored for use in the packaging operation, a selected number of the bags being periodically removed from the stacked supply of bags and transferred to the packaging station while still held by the wicket.

Abstract: An apparatus for automatically packing discrete articles into a kraft paper bale bag includes a magazine for holding a plurality of closed flat-folded bale bags in stacked relationships, a bale picker carrying vacuum-operated suction cups for attaching to a front sidewall of a bag positioned within an exit opening of the magazine upon the picker being moved adjacent to the opening and for opening the mouth of the bag upon the picker being moved in the opposite direction, duckbills adapted to be inserted into the mouth of the bag and cooperable with clamps for clamping the sidewalls of the bag therebetween, a reciprocating pusher for executing a series of short forward strokes to assemble into a group a predetermined number of articles that are successively positioned in front of the pusher, a counter for counting the forward strokes of the pusher to count the number of articles assembled and for causing the pusher to execute a long forward stroke upon a predetermined number of articles being assembled so as t

Abstract: The apparatus comprises an inclined chute to which the articles are delivered in portions and from which they slide down into a tray which oscillates in a horizontal direction together with the chute. The tray is open at its end remote from the chute and at the top, but closed on its remaining sides. The tray is pivotally supported in extensions of the chute side walls so that it can pivot between a horizontal loading position and a vertical discharge position. In front of the open end of the tray there is provided a vertical plate which is coupled to the chute and the tray in such a way that in the horizontal position of the tray it closes the open tray end while in response to the pivoting of the tray to vertical position it is moved some distance down into the mouth of a subjacent bag, substantially retaining its vertical orientation. During the emptying of the tray the plate functions as one of the walls defining a discharge opening through which the articles are transferred to the bag.

Abstract: The present invention comprises a control system for automatically controlling the height of a header on a combine. The combine header includes a cutter bar which is adapted to float upwardly and downwardly in response to variations in the terrain. A linkage interconnects the cutter bar with a movable cam and a microswitch so that the microswitch is actuated in response to upward and downward movement of the cutter bar. The microswitch is connected to solenoids within a hydraulic valve and the hydraulic valve is connected in the hydraulic system with the hydraulic cylinder for raising and lowering the header. When the cutter bar lifts upwardly the microswitches are moved to a condition wherein they cause the valve to actuate the hydraulic cylinder for lifting the header. Similarly when the cutter bar moves downwardly the hydraulic cylinder is actuated to lower the header. When the cutter bar is in a neutral position, the hydraulic cylinder remains motionless.

Abstract: A dethatching attachment for a power lawnmower comprising a mounting frame which is removably mounted on the forward end of the lawnmower and which is positioned forwardly thereof. Spaced-apart first and second elongated supports are secured to the mounting frame and extend forwardly therefrom in a diverging fashion. A plurality of spaced-apart dethatching wheels are rotatably and pivotally mounted on each of the first and second supports so as to dwell in a plane which is angularly disposed with respect to the normal direction of travel of the lawnmower. The wheels may be selectively moved between operative and inoperative positions.

Abstract: A unique process for producing torque-free or balanced yarns of staple fibers with glass filament cores is disclosed. Staple fiber roving is fed through a drafting system. Glass filament is fed into the center of the staple fiber just prior to entering the front rolls of the drafting system. Sufficient twist is applied to the fiber around the glass filament using the ring spinning process and two or more of these yarns are ply twisted in the opposite direction of the spinning direction to firmly lock the staple fiber to the glass filament. The twist multiplier range for spinning is between 3.0 to 3.5 and for plying is betwen 3.5 and 4.5. Cotton fiber is the principle fiber used with a glass filament core. The resulting yarn can be tied by knotting onto existing loom beam ends when breaks occur during weaving without shearing of the yarns.

Abstract: A friction spinning machine having a plurality of friction spinning units, each of the spinning units including two rotatable parts forming a spinning wedge, and two whorls each being connected to a respective one of the rotatable parts, includes a device for driving the rotatable parts, the driving device including a common endless belt wound around both of the whorls, a drive roller around which the endless belt is wound for transmitting the belt drive, a tangential belt guided along the length of the friction spinning machine, and a device for engaging and disengaging frictional contact between the tangential belt and the endless belt or belt roller.

Abstract: A method of starting the operation of a friction spinning unit having friction surfaces displaceable in opposite directions and forming a spinning wedge, the spinning unit further having a fiber infeeding device, a thread take-up device for drawing a thread longitudinally through the spinning wedge, and at least one suction device acting upon the spinning wedge, at least one of the friction surfaces being formed by a sieve drum, the suction device having a suction nozzle acting upon the spinning wedge by sucking air through the wall of the sieve drum includes:(a) stopping the fiber infeed, and stopping the displacement of the friction surfaces;(b) stopping the flow of suction air from the spinning wedge through the wall of the sieve drum into the suction nozzle;(c) introducing into the spinning wedge through the wall of the sieve drum a suction air flow in a direction opposing the direction in which the thread is being drawn, and guiding the air flow out of the suction nozzle through the wall of the sieve dru

Abstract: Method for starting the operation of a friction spinning machine, including friction surfaces movable in opposing directions for forming a spinning wedge, a device for supplying fiber to the spinning wedge, a thread withdrawal device, at least one suction device acting on the spinning wedge during the spinning operation, a suction tube disposed at an end of the machine opposite the thread withdrawal device, and a suction air source connectible to the suction device and to the suction tube, which includes:stopping the fiber supply and the motion of the friction surfaces;disconnecting the suction device from the suction source;supplying suction air from the suction source through the suction tube at the spinning wedge for inserting a thread into the spinning wedge;keeping the thread in a tensioned condition in vicinity of the spinning wedge;operating the suction device with a given suction power;moving the friction surfaces around the thread with a given speed to remove the twist of the thread at a given locati

Abstract: A method of starting the operation of a friction spinning unit having friction surfaces displaceable in opposite directions and forming a spinning wedge, the spinning unit further having a fiber infeeding device, a thread take-up device for drawing a thread longitudinally through the spinning wedge, and at least one suction device acting upon the spinning wedge, at least one of the friction surfaces being formed by a sieve drum, the suction device having a suction nozzle acting upon the spinning wedge by sucking air through the wall of the sieve drum, by means of an automatic thread joining device, includes:(a) laying a thread into the spinning wedge;(b) initiating the infeed of spinning fibers into the spinning wedge;(c) connecting the friction surfaces with a thread-joining drive arrangement, and moving the friction surfaces in opposite directions with increasing speed;(d) continuously withdrawing the thread from the spinning wedge, and conducting it to a waste collector;(e) interrupting the travelling thre

Abstract: This invention relates to a sensor device able to provide, without contact, an exact indication of the tension in the free portion of each individual thread which leaves the rotating head of a stranding machine in order to contribute to the formation of a rope.

Abstract: A sub-idle speed control apparatus for reducing the thrust of an airplane turbine engine is provided. The subject invention reduces the compressor discharge pressure measured by an existing pressure sensing means which proportionally reduces the fuel flow to the engine. Hence, the engine speed is reduced resulting in a lower engine thrust. A switch activates the apparatus which closes a normally open valve in the existing pressure line between the compressor and the pressure sensing means and diverts the pressure through a by-pass line having a restrictor. The by-pass line is connected to the existing pressure line on the compressor side and the pressure sensing side of the normally open valve. A normally closed valve and a spring loaded valve respectively are connected to the existing pressure line and the by-pass line at the connection point nearest the pressure sensing means. When the apparatus is activated the normally closed valve is opened simultaneously with the closing of the normally open valve.

Abstract: The process comprises the comparison of the flows of fuel and oxidizer measured at the outlet of the turbopumps with a set value corresponding to the optimum value of the mixture. The set value is periodically modified in dependence on the volumes of fuel and oxidizer remaining in the tanks. The control system for carrying out the process comprises a control valve controlled by an electronic device processing the measurements and disposed in a fuel or oxidizer supply pipe of a driving gas generator for the turbine of a turbopump or in the gas supply pipe of a turbopump, or disposed between the two pipes supplying the same fuel or oxidizer two driving gas generators, or between the gas outlets of the two turbines of the turbopumps.

Abstract: An exhaust purification apparatus includes a regenerative burner for repetitively regenerating a trap element located in the exhaust system of an internal combustion engine. The regenerative burner has a combustion chamber adapted to permit flow of exhaust gases from the engine exhaust conduit to the trap element. A cup-shaped member is disposed within the combustion chamber to define therein an evaporation chamber which has an adequate supply of air-fuel mixture. The cup-shaped member has a peripheral wall formed with cutouts to permit air-fuel mixture from said evaporation chamber into said combustion chamber and also with a hole to permit fuel droplets to fall onto a glow plug located below the cup-shaped member within the combustion chamber. A protective cover is provided to cover the path of dropping of fuel droplets onto the glow plug to prevent air from flowing to cool down the glow plug and deviate the fuel droplets away from the glow plug.

Abstract: The present invention provides an exhaust system comprising an elongated hollow casing having an upstream muffler chamber containing an insulated removable cartridge for sound absorbing and sound collecting, an intermediate chamber containing a removable spark and moisture arrester and a downstream chamber having a removable and replaceable cartridge containing exhaust gas purifying material. In one embodiment the cartridge provides dual chambers, one for absorbing and absorbing exhaust gas pollutants and the other for catalytic conversion of the same or different exhaust gases. The purifying cartridge is constructed of a foraminous material such as heat and corrosion resistant wire mesh or screen. Similarly, the muffler cartridge is an elongated hollow shell formed of a foraminous heat and corrosion resistant material such as wire mesh or screen. The annular space around the muffler cartridge is preferably filled with a heat-resistant, sound-absorbing, gas previous material.

Abstract: An energy-saving hydraulic driving arrangement includes a motor having two chambers separated by a reciprocable or angularly movable output element which can accelerate or decelerate a mass. One of the chambers receives pressurized fluid from one of a battery of accumulators containing fluid at different pressures (namely, from the accumulator wherein the pressure is slightly higher than the desired pressure in the one chamber) during acceleration of the output element while the other chamber discharges fluid directly into a sump. During deceleration of the output element, the one chamber draws fluid directly from the sump whereas the other chamber discharges pressurized fluid into that accumulator wherein the pressure is slightly less than the pressure of fluid in the other chamber.

Abstract: Apparatus for deriving energy from the rise and fall of a body of liquid to drive a rotatable main shaft associated with a power generator comprising, in combination, float means adapted to move substantially in a vertical plane in response to the rise and fall of the body of liquid, means associated with the float means for converting the vertical movement into reciprocating rotational movement of a first shaft, a ratcheted differential adapted to convert the reciprocating rotational movement of the first shaft into rotational movement of a second shaft in a single direction, the ratcheted differential being associated with first gear train means for increasing the rate of rotational movement of the first or second shaft, connecting means for communicating the rotational movement of the second shaft to a first sprocketed sheave, and second gear train means connecting the rotatable main shaft to a second sprocketed sheave and adapted to cause a rate of rotation of the rotatable main shaft greater than the rat

Abstract: An internal combustion driven fluid pumping apparatus for accumulating fluid pressure to be applied against a load includes a two-stroke combustion cylinder having a piston drivingly connected to a piston of a linearly disposed compression cylinder, which is in turn connected by a fluid conduit to a pressure accumulator. The accumulator is operatively connected to the compression cylinder such that the frequency of cycles of the combustion cylinder varies with the changes in the demand of the load upon the fluid pressure stored in the accumulator, and such that the speed of the pistons in each individual stroke is substantially constant. To begin each cycle, fluid is forced into the compression cylinder at a pressure less than the pressure of fluid in the accumulator, but sufficient to compress and ignite combustible gases in the combustion cylinder. A fluid-driven power plant is disclosed including a motor and a combustion energy input device combined in a closed, pressurized system.

Abstract: A halocline is maintained in open body of salt water at a depth to which a significant amount of solar radiation penetrates by inducing an upward vertical flow in the body of water sufficient to counter wind-mixing and molecular diffusion thereby establishing an ascending or rising solar lake. The upward flow is induced by injecting into the body of water a concentrate with a density greater than the density of liquid at the lower end of the halocline, the concentrate being formed by evaporating liquid drawn from the surface of the body of water. The halocline suppresses convention currents and allows solar radiation to heat the halocline as well as a layer of liquid therebelow to temperatures significantly higher than the surface temperature. Heat for useful work can be extracted from the heat storage layer beneath the halocline.

Abstract: Method and apparatus for burning fine grained material, particularly for the manufacture of cement clinker whereby the product quality is enhanced. At least a portion of the exhaust gases from the kiln at a temperature of about 1000.degree. to 1300.degree. C. are cooled by passing them through a steam generator to a temperature of about 200.degree. to 300.degree. C. At least a portion of the noxious substances such as alkali chlorides and sulfur are condensed out of the gas stream as well as possibly some mineral particles such as partially deacidified kiln dust. The materials condensed out of the gas are separated in the steam generator by means of periodic or continuous cleaning of the heating surfaces of the steam generator. The steam which is generated in the generator is conducted to at least one prime mover such as a steam turbine or a steam motor for the purpose of producing electrical or mechanical energy.

Abstract: A method of employing the thermal energy from essentially limitless sources, such as the ocean or the atmosphere, to produce mechanical work or electricity by power plants wherein; the fluid from the limitless heat source is used to heat the working fluid of a prime mover through a heat exchanger; the effluent cooled fluid from the said heat exchanger may be employed directly or indirectly to extract the exhaust heat of the prime mover; and the said effluent cooled fluid from the said heat exchanger may also be used simultaneously or successively for the conversion of saline water into fresh water, or dirty water into usable water.

Abstract: A high pressure steam turbine having a sealing gland where the turbine rotor penetrates the casing of the turbine. Under certain conditions the gland is sealed by an auxiliary steam supply, and under other conditions the gland is self sealed by turbine inlet steam. A control system is provided to modify the temperature of the auxiliary steam to be more compatible with the self sealing steam, so as to eliminate thermal shock to the turbine rotor.

Abstract: A freeze concentrator of the shell and tube type containing a pool of liquid cryogen within the shell, the concentrator being adapted to maintain a constant temperature within the liquid cryogen. The temperature control comprises a flash tank located above the level of liquid cryogen within the concentrator, to which the vapors evolved from the boiling cryogen are passed. The flash tank is provided with a condenser for condensing the cryogen vapor which enters the flash tank, the resulting liquid cryogen collecting within the flash tank and being recycled therefrom by gravity to the pool of cryogen in the exchanger.

Abstract: A cryogenic system adapted to trap or pump waste industrial gasses and characterized by a cryogenic assembly having a cryogenically cooled member sealed within an inner enclosure, a thermal switch assembly for injecting and removing gas from within the inner enclosure, and a flush assembly for removing the solid and liquid residues of the industrial gasses from the trap assembly. The inner enclosure may be covered with a sacrificial material such as copper to chemically react with the reactive gasses. The use of a thermal switch assembly permits rapid regeneration of the system because the cryogenically cooled member does not have to be shut down during the regeneration cycle.

Abstract: A method and apparatus for producing snow at marginal ambient temperatures while at the same time eliminating compressed air line freeze-up and oil contamination. Compressed air is delivered from a compressor to a cooling tower wherein oil particles and condensate are removed from the stream of compressed air. The oil particles and condensate-free compressed air stream is then delivered to a cryogenic unit wherein the air is contacted in heat exchange relationship with a liquefied gas so as to supercool the air stream which is then delivered to snow-making apparatus.

Abstract: Bottles 1 are disposed in an inverted position in small groups on a tray which is placed in position on a lower frame 25 of a programmed raising and lowering portal 6. Upon each lowering of the portal, the necks of the bottles are dipped into a bath of liquid nitrogen which is maintained at a constant level. The dippings, for example three in number, are separated by stages in which the necks of the bottles are maintained out of the bath. The last dipping terminates when the necks are partly frozen, and the bottles are then conveyed to a disgorging station where the mass of ice formed is expelled so as to eliminate the sediment coming from the fermentation of the champagne.

Abstract: An ice storage bin for the storage and delivery of fragmentary ice for use in an enclosed area. The ice storage bin has at least one ice rake assembly having an arm which pivots about a lower corner of the bin and supports rakes that serve to move the fragmentary ice contained in the bin toward a screw for discharge from the bin. A rake drive shaft provides the pivot axis about which the rake arm rotates. The rake arm contacts the ice in storage by the action of gravity so that the rakes dig into the ice. An additional rake arm assembly can be disposed on the opposite side of the bin or parallel to the first rake arm assembly to increase the capacity of the bin. The bin is formed from beams which can be premanufactured and readily placed in a standard storage container. Apparatus are provided for raising the ice rake arm from the surface of the ice to a vertical position during the filling of the ice bin.

Abstract: Procedure for knitting hose with a toe and heel in a circular knitting machine having more than one feed and two needle cylinders. All needles are brought to an upper path during knitting of the toe and heel with alternating motion, and at every oscillation of the cylinder those needles alone which have been selected to knit the course relative to the oscillation are brought back to work from the upper path towards a lower working path. The selection of needles is brought about by cooperation between fixed radial cams situated so as to correspond with the main feed and appropriate selection actuators. The selection for jacquard designs takes place upwardly from the lower path to the upper path by cooperation between appropriate selection actuators and movable radial cams located so as to correspond with each feed. The upper path serves to exclude the needles of the lower cylinder from work and also to protect the upper cylinder needles, the lower path being the path for jacquard designs.

Abstract: A needle selector device for a multi yarn feed knitting machine comprises a stack of angularly movable sliders mounted about a common axis, the sliders being selectively movable between three positions, namely the knitting, tucking and floating positions. The sliders define cams which depending on the selected position of the slider can engage steering butts on a pivotable pattern bar connected through a swivel bar to a knitting needle.

Abstract: A jigger dyeing apparatus comprising a liquid-draining device which is arranged in a travel passage of a spread textile fabric to be dyed between winding rolls and dyeing rolls so that a dyeing solution is squeezed out on the entire surface of the fabric uniformly with respect to the weft direction of the fabric, and a dyeing solution circulating system and a dyeing box, which are arranged so that while the fabric is being dipped in the dyeing solution, the dye concentration in the dyeing solution falling in contact with the fabric is always kept uniform in respective portions of the fabric. The problem of listing involved in conventional jigger dyeing apparatus can be completely solved by using the present jigger dyeing apparatus.

Abstract: A flange lock for preventing unauthorized access to flanged connections, comprises a pair of semi-cylindrical shells having face plates at at least one end thereof. The shells are hingedly interconnected by a tongue on one that passes through a slot in the other. At their free ends, the shells carrying three sleeves that align with each other in the closed position of the device, two sleeves on one shell and a third sleeve that fits between the first two, on the other shell. A screw-threaded nipple passes through two of the aligned sleeves in the closed position and is screwed into the end sleeve; and a screw type cam lock has a rod that passes through the nipple and screws into a plug carried by the end sleeve. The cam lock is non-rotatable relative to the nipple but its rod can be rotated to screw into and unscrew from the plug, thereby respectively to lock and release the assembly, when a key is inserted in the cam lock.

Abstract: A safety lock for automobiles with a manual transmission operable by a shift stick is associated with the shift stick which includes a double-armed shift lever supported by a ball joint pivotally disposed in a floor-mounted neck member and a locking sleeve disposed on the shift stick axially movable between upper and lower end positions in which the sleeve may be locked and having a locking member at its bottom end adapted to firmly engage a flanged tubular member mounted on the neck member when locked in its lower position.

Abstract: Devices for controlling the unlatching and locking of the latch are hydraulic. Connected to a single unit having a plurality of slide valves are an expansion vessel, transmitting pumps controlling the unlatching, a receiving unlatching fluid motor and one or more pumps controlling the locking of the latch. Depending on which slide valves and pumps are employed, it is possible to achieve at will one or more of the various locking functions required in automobile vehicle latches.

Abstract: An easily assembled combination lock has improved tumbler wheel construction, combination changing apparatus, and a bi-positional lock cover which selects between spring-bolt and dead-bolt operation. The improved tumbler wheels have two-piece construction, an inner drive member having a projection, groove and stop assembly cooperating with adjacent tumbler wheels, and a gate ring having a gate and improved gripping apparatus for frictionally engaging the gate ring with the inner drive member. The inner drive member has multiple ratchet teeth about its periphery and the improved gripping apparatus includes a pair of diametrically opposed gripping straps integral with the gate ring, in tension, and tangentially contacting the periphery of the inner drive member imparting a predetermined frictional resistance to rotation. Two normal modes of tumbler wheel operation are contemplated.

Abstract: The improved guard plate of this invention is used to protect the cylinder of a lock. It includes a relatively flat body, attached to the door in the vicinity of the cylinder, and a disc rotatably mounted between the door and the flat body. In an open position, an opening in the disc permits access to the cylinder; and, in the closed position, the solid portions of the disc do not permit access to the cylinder. In adition, rotatable fingers are provided so as to lock the rotatable discs in either the open or closed position. Further, a stud extends from each of the rotatable fingers into and through the door. On the end of each stud is an electrical contact which may come into intermittent contact with an electrical contact positioned on the inside surface of the door. Thus, rotation of the rotatable fingers in the incorrect direction or too far in the correct direction will cause touching of the two electrical contacts and completion of an electrical circuit which will activate an alarm.

Abstract: A heat pipe is provided with a multiplicity of longitudinal deep grooves and ridges formed in the inner peripheral surface thereof. A plurality of shallow grooves are formed by a plastic work in the top surfaces of the longitudinal ridges separating the deep grooves. Parts of burrs formed as a result of the plastic work for forming the shallow grooves are extended over the deep groove so as to form bridges connecting adjacent ridges over the deep grooves.

Abstract: The process and the device which are the object of the invention relate to the cold rolling of tubes by means of a Pilger mill. The tube blank is made to advance near each of the upstream and downstream dead centers reached by the roll stand during its forward and return cyclical movement and backward movement of the rear part of the blank is made possible during a return pass of the roll stand. This process makes possible a doubling of production without changing the operating rate of the roll stand.