baber/WOPTO huggingface dataset:
Patent GB-2036906-A (GB)
Title: Snap-joints for Coupling Pipes
IPC: F16L37/086
Filed: 1979-09-19
Abstract: A snap-action joint for coupling pipe ends is provided in which a male section 17 is snapped into an outer female section 1 and in this action two sliding plate wedges 9 are displaced outwardly and then spring back to engage contact surfaces of the male section. The surfaces of the male section and wedges 9 which engage to lock the male section to the female section 1 are arcuately curved so as to lie with the centre of curvature on the joint axis and so as to subtend a substantial angle, e.g. of the order of 90 DEG  for each wedge. The joint is released by means of an outer sleeve 2 which is displaced axially of the joint, and which displaces a first ring 12 so as by a wedging action to retract the locking wedges 9, and also by wedging action, to displace a second ring 14 axially of the joint, in turn compressing a spring 20 which urges the locking wedges 9 in locking engagement with the inner section on release of the sleeve 2.   <IMAGE>
Patent GB-2035538-A (GB)
Title: Oil-atomisation burner
IPC: F23C7/06
Filed: 1979-10-05
Abstract: A burner comprises an oil-atomisation nozzle (12) and a cup- shaped combustion chamber (13) whose wall (15) is provided with holes (30) for the feeding of preheated combustion air. A tangential flow component of the air is introduced into a first, inner portion (31) of the combustion chamber where it forms a vortex which is constricted to form an axial potential vortex flow by a tangential flow component of the combustion air which is introduced into a second portion (32) of the combustion chamber, so that there ensues in this portion a rotary flow which is superimposed on the potential vortex flow thereby resulting in complete combination of even the smallest quantities of fuel. <IMAGE>
Patent GB-2062321-A (GB)
Title: Fence Structure
IPC: G08B13/12
Filed: 1979-10-13
Abstract: A security fence is provided with upright pales 8 and a length 18 of optic fibre or other non-electric medium carrying line is connected to the pales in a manner such that removal of the pales will cause breakage of the length of optic fibre. A supply applies pulsed light to one end of the optic fibre, and a detector is provided at the other end to detect the flow of pulsed light from the optic fibre. On detection of any alteration in the flow of pulsed light from the optic fibre, an alarm may be activated. In a modification the optic fibre is replaced by a hollow tube through which fluid is passed, e.g. air or water. <IMAGE>
Patent GB-2032783-A (GB)
Title: A menstrual tampon
IPC: A61F13/20
Filed: 1979-10-15
Abstract: A tampon has a body 1 of absorbing material with an extraction string 4 extending from the body, the string 4 being laid around the tampon, e.g. helically (Figure 1) or lengthwise (Figure 2), prior to use. <IMAGE>
Patent GB-2036613-A (GB)
Title: Vices
IPC: B25B1/24
Filed: 1979-11-13
Abstract: A vice has jaws in the form of a pair of blocks (7, 8), each of which has a number of gripping surfaces (10, 12). Each block is detachably mounted on the vice and may be replaced by another block and/or turned on the vice to enable two of a plurality of gripping surfaces to be brought into mutual opposition. <IMAGE>
Patent GB-2038970-A (GB)
Title: Fluid flow couplings
IPC: F16L37/44
Filed: 1979-11-15
Abstract: A fluid flow coupling providing a mounting and a valve operating means for pressure vessels for compressed gases comprises a tubular body (18) having a socket in which the neck of a gas bottle (1) can be locked by balls (44) carried in a sleeve (36) which can be moved axially by a cam (16) which extends across the bore of the body and is rotatable by a handle. The cam also moves one part (35) of a valve actuating member the other part (56) of which extends into the neck of the gas bottle to open the valve (65, 66) therein. The handle has three positions. In the first the balls are retracted to allow removal of the bottle. In the second the bottle is locked in position with its valve closed and a flow path exists from the outlet port to the atmosphere. In the third the valve in the bottle is open and a flow path exists from the bottle to the outlet port. <IMAGE>
Patent GB-2058995-A (GB)
Title: Framework structure and kit therefor
IPC: B63B5/24
Filed: 1979-11-26
Abstract: The invention provides a constructional kit comprising strips or sheets 6 each formed to be erectable into predetermined tubular form and for joining the resulting erected tubular members 2 together joining and fixing members 4 which are a mating sliding fit in the ends of the hollow tubular members and which are capable of securely receiving fixing means, e.g. screws 25 or bolts, whereby a tubular member 2 can be secured to a joining and fixing member 4 accommodated therein and whereby a structure comprising adjacent tubular members connected by such a joining and fixing member can be fixed to a support and/or to a member or structure to be supported. The strips or sheets may be formed with access holes 20 to facilitate rapid securement in tubular form. The fixing and joining members may have axial bores 40 from their end faces for accommodating strong elongate connecting rods or tubes 42; and/or they may be joined externally by reinforcing webs, their shape and size being modified to accommodate the latter. The kit can be assembled into various structures e.g. a display stand or a framework which can be secured to a cladding panel or between cladding panels. For increased permanence and strength the assembled structure may be provided with a coating of cured reinforced plastics. <IMAGE>
Patent GB-2053149-A (GB)
Title: Telescopic crane booms
IPC: B66C23/70
Filed: 1980-07-25
Abstract: Locking means remotely operable are provided to lock together adjacent sections of a telescopic boom when partly extended and the locking means transfer the load from one section to an adjacent section. In this way, rams or other extending means can be used for telescoping operations but can then be relieved of loads resulting from using the boom. As shown pins at 9, 10 can respectively lock together sections 2, 3 and 3, 4 of boom 1 by passing through apertures in selected ones of reinforcing plates 11 spaced along the sections 2, 3. Eight different boom extensions are thus available. <IMAGE>
Patent GB-2056285-A (GB)
Title: Tracheal tube assembly
IPC: A61M16/04
Filed: 1980-08-12
Abstract: A tracheal tube assembly comprises an outer tube 1 for insertion within the trachea 3 of a patient, and an inner tube 2 that extends within the outer tube. The inner tube 2 is circumferentially corrugated so as to be flexible about its length and is formed with at least one groove 28, 29, or elongate reinforcing member traversing the corrugations 27. The inner tube 2 may have two grooves 28, 29 located on opposite sides of the tube and extending parallel to its length. The grooves 28, 29 may be separated from one another along the length of the inner tube 2. Alternatively, the inner tube 2 may have a groove extending helically about it, or several grooves parallel to the length of the inner tube separated from one another along its length in a helical fashion. <IMAGE>
Patent GB-2057908-A (GB)
Title: Fluid-solid contact
IPC: C01B3/38
Filed: 1980-08-22
Abstract: A process and apparatus for contacting a fluid with the walls of a vessel (10), eg chemical reaction, heat exchange, adsorption, leaching or sampling, are characterised by flow of the fluid alternatingly (a) through a structure within the vessel and having passages (16) angled to the general direction of flow in the vessel and (b) through a space (12) between the structure in and the vessel walls. The structure can be for example a cross flow ceramic or metal honeycomb or a stack of profiled plates or of apertured plates such as expanded metal. The structure can carry a catalytic coating and then affords high activity and low pressure drop. The process and apparatus are especially suitable for endothermic tubular steam hydrocarbon reforming. <IMAGE>
Patent GB-2084082-A (GB)
Title: Strip index filing card
IPC: B42F19/04
Filed: 1980-09-15
Abstract: The vertical support strips (33) of a filing card for index strips (13) form integral parts of a welded plastic sleeve which fits over a plastic backing sheet (11). The sleeve is located by two end cut-outs or slots, which extend intermediate the upper and lower marginal edges of the backing sheet (11). The index strips (13) are retained by lugs in slots between the sleeve support strips (33). <IMAGE>
Patent GB-2065337-A (GB)
Title: Speed controller for an alternating current motor
IPC: H02P27/02
Filed: 1980-11-26
Abstract: A speed controller for an alternating current motor comprising electronic switching means for starting and stopping the supply of current to the motor to control the motor speed, the controller comprising means for determining, during each revolution of the motor, the actual time taken for the rotor of the motor to rotate through an angle which is a sub-multiple of 2  pi , means for comparing the actual time with a predetermined reference time, and means for starting the supply of current to the motor when the actual time exceeds the reference time and for maintaining the supply of current until the actual time falls below the reference time.
Patent GB-2070981-A (GB)
Title: Developing apparatus
IPC: G03G15/08
Filed: 1980-12-18
Abstract: Apparatus for developing an electrostatic image using single component developer employs a fibre or fur brush roller or belt to apply the developer to the image. The roller (37) comprises a core (50) of polyurethane foam with a conductive coating (53). The fibre is rayon flocked thereonto. <IMAGE>
Patent GB-2090816-A (GB)
Title: Device for separating and drawing out individual films from a film pile
IPC: B65H3/32
Filed: 1981-01-14
Abstract: A film sheet separating device comprising a cam 6 which reciprocates slide 10 causing roller 16 to contact uppermost sheet of pile, and wedge 14 to obliquely enter the pile to partially separate the uppermost sheet. Plate 20 then pivots about 21, further separating the sheet from the pile and allowing roller 30 to enter the space between pile and sheet, and to nip the sheet against a drawing out wheel. <IMAGE>
Patent GB-2069829-A (GB)
Title: Brush holder
IPC: A46B17/06
Filed: 1981-01-22
Abstract: A brush holder for the cleaning and storage of paint and like brushes comprises a container for solvent into which the bristles of the brushes depend, and a rack disposed above the container which supports the brushes so that they depend into the container and the bristles of the brushes are not deformed during cleaning and storage.   The rack (3) is made from plastic or paint-coated wire and comprises substantially horizontal cross members (9, 10) to which are transversely fixed arms (11) which define brush locating recesses (22, 23). The brush locating recesses may be disposed in rows at different levels above the container (1), thereby accommodating brushes (4) of differing lengths, and may vary in width. The rack is supported by legs (8) and the legs, the rack and the container may be of integral construction. The outer ends (16) of the arms of the rack are preferably upturned to prevent unintentional disengagement of the brushes from the rack. <IMAGE>
Patent GB-2070875-A (GB)
Title: Exclusive logic circuit
IPC: H03K19/21
Filed: 1981-01-29
Abstract: An exclusive logic circuit, for example an exclusive OR circuit, or a driving circuit of a display device, such as a liquid crystal display device, includes a first inverter (11) connected to a first input (2), a clocked second inverter (12) connected to a second input (1) and clocked by a signal appearing at the first input so that a signal appearing at an output (3) is selectively inverted with respect to the signal appearing at the first input depending upon the logic level of the latter signal, and a transmission gate (15) connected to be controlled by the signal appearing at the first input for selectively passing the signal appearing at the second input to the output. <IMAGE>
Patent GB-2092782-A (GB)
Title: Regulated DC-to-DC Converter
IPC: H02M3/337
Filed: 1981-02-11
Abstract: A feedback-regulated DC-to-DC converter, for use as a power supply, has a transformer (T) whose primary circuit is energized in push-pull operation to direct current pulses alternately in opposite directions through the primary winding (P). The rectified output from the secondary winding (S) of the transformer, when applied to a load (R) controls regulator (REG2) as a function of the voltage drop across the load. The regulator controls the time periods of conductivity of at least one pair of alternately conductive electronic switches (Q6-Q9) in the primary circuit of the transformer, while the time periods of conductivity of one electronic switch of the or each pair overlap with time periods of conductivity of the other electronic switch of the same pair. Voltage stabilization is achieved in that the time periods of overlap increase with decreasing voltage drop across the load and vice versa.   <IMAGE>
Patent GB-2074696-A (GB)
Title: Construction of rubber bush
IPC: B60G21/055
Filed: 1981-04-16
Abstract: An arrangement for the resilient mounting of a chassis element, such as a stabiliser torsion bar, in a motor vehicle comprises at least one rubber sleeve 1, enclosing the said element (not shown), which has a circularly cylindrical bore whose internal diameter is larger than the diameter of the said element and is, in turn, enclosed by a holding sleeve (not shown) having an internal diameter smaller than the external diameter of the rubber sleeve, at least the circularly cylindrical interior of the rubber sleeve having moulded projections, bosses, annular or longitudinal ribs 2, 4, 6, which bear as a result of deformation, on a round outer surface of the element in such a manner that rubber material is pressed into spaces 3, 5, 7, between said projections, in the rubber sleeve. Moulded projections may be provided also on the outside of the rubber sleeve. The projections improve the adhesion between the rubber sleeve and the element. <IMAGE>
Patent GB-2076311-A (GB)
Title: Document shredding machine
IPC: B02C18/14
Filed: 1981-05-11
Abstract: The invention concerns a document shredding machine of the kind comprising two cutter assemblies (6, 8), each assembly comprising a drive shaft (10, 18) upon which cutter discs (14, 20) are mounted at spaced intervals, the assemblies (6, 8) being mounted so that the discs (14 or 20) of the other assembly with little or no clearance, the machine comprising a drive motor to rotate the drive shafts (10, 18) in opposite directions. One of the cutter assemblies (6) is fixedly mounted on the machine frame (28) and the other assembly (8) is mounted for movement about a pivot axis (34) between a normal working position and a separated position, determined by the position of a manually- operable device and a stop (38) thereof. In the event that the cutter assemblies jam, by documentary material of considerable thickness being fed into the nip, the manually- operable device may be operated to permit separation between the cutter assemblies, against the action of spring means (36), to permit unblocking of the machine. <IMAGE>
Patent GB-2113025-A (GB)
Title: Thyristor switching circuits
Inventor: HOWARD MICHAEL SHMUEL
IPC: H02M5/04
Filed: 1981-05-15
Abstract: The circuits include an SCR or triac (2) having its gate (G) permanently connected to the ac network, via a suitable impedance (3, 4), which impedance admits a gate current near the minimum necessary for original turn-on (for triacs, at least for the I+ mode) at lowest ambient temperature, which current is sinusoidal, and which current is reduced below the minimum needed for turn-on by a control circuit by direct shunting of the gate to a minus terminal (MT1) by a negative- coefficient semiconductor (v.s. heat, light, etc.), or a switch (not shown). Said semiconductor may be a transistor with favorable Iceo characteristics, e.g., the OC171, or a NTC resistor and said switch is usually a semiconductor switch. Capacitive- gate-feed embodiments, where gate current leads anode voltage by essentially 90 DEG el. allow full-wave almost-zero-voltage switching; placing the feed impedance before the load allows quasi-d.c. switching. By simple Ohm's-Law tapping of a resistor between feed impedance and gate, sensitivity is easily increased. By using a transistor amplifier as buffer, small currents can control the thyristor for variegated applications. The relatively low gate currents used facilitate the above, using the simplest components and circuits, and prevent damage to and difficulties with the thyristor. The applications presented are automatic, proportional, or manual, and include water temp. control, and on/off and dimming lighting control. <IMAGE>
Patent GB-2102516-A (GB)
Title: Improvements in or relating to vehicle arresters
Inventor: JACKSON GORDON LESLIE GEORGE
IPC: B60T1/14
Filed: 1981-06-08
Abstract: A vehicle arrester for restraining a wheeled vehicle in a given location e.g. to enable the vehicle to be used in winching is located on the vehicle and, comprises a thrust plate (20) and a foot or sprag plate (42) pivotally mounted thereon. The arrester is moveable from a raised stowed position (Figure 1) to an operative position in which the thrust plate (20) engages the periphery of a vehicle (rear) tyre (22) and the foot plate (42) engages the ground (58) adjacent to the tyre. There may an individual arrester for each rear wheel or pair of rear wheels or a single arrester for all rear wheels with one or two thrust plates and one or two foot plates. The plates (20, 42) may be moved by one or more hydraulic rams (e.g. 38, 52). The arrester may be used with the foot plate (42) parallel to and engaging against hard surfaces or dug into the ground at at appropriate inclination. <IMAGE>
Patent GB-2081867-A (GB)
Title: Improvement in milking apparatus
IPC: F28D7/16
Filed: 1981-06-19
Abstract: A milking apparatus has a milking parlour connected to a bulk storage tank by means of a conduit. In order to cool the milk from the parlour before it reaches the bulk tank, there is incorporated in the conduit a cooler in which heat is extracted from the milk by surrounding tubes carrying the milk with counterflowing cold water. The cooler comprises a plurality of stainless steel tubes 6 which extend through a tubular housing 5 and whose ends are supported in rubber plugs 7 at the two ends of the housing. The tubes 6 pass through the plugs 7 and communicate with chambers 15 which are formed between the plugs 7 and sleeve-like closure members 10 and which are coupled to the conduit 2 carrying the milk. Cold water is supplied to the interior of the tubular housing via additional tubes 16 so as to surround the tubes 6 carrying the milk. <IMAGE>
Patent GB-2104274-A (GB)
Title: Sound motion picture apparatus with removable cartridge
Inventor: BLAKE III JOSEPH WALTER
IPC: G03B19/18
Filed: 1981-08-06
Abstract: Described is a motion-picture apparatus with a housing, Figure 1, a removable cartridge, Figure 4, and an arrangement 76, 75, 78 for reproducing a sound track 70 in correlation with the action shown on a length of film 43 contained in the cartridge. <IMAGE>
Patent GB-2088653-A (GB)
Title: Braided cable seal
IPC: H02G3/06
Filed: 1981-09-23
Abstract: A sealing region of a braided cable 1 is provided by first inserting a meltable sleeve 5 beneath the braiding 4 and heating this so that it softens. The cable 1 is then drawn through a die 11 so that the material of the sleeve 5 is forced to flow into the braiding 4. Another meltable sleeve 7 and an outer heat-shrinkable sleeve 8 are then slid over the cable 1 and heat is applied so that the material of both meltable sleeves 5 and 7 flows together and the shrinkable sleeve 8 contracts about the cable. The sleeve 8 provides a smooth outer surface to which a seal may be made, such as, by means of a stopper box in which an elastomeric gland is compressed about the cable. <IMAGE>
Patent GB-2090561-A (GB)
Title: Keyboard device with contacts distributed in a plurality of planes
IPC: H01H13/84
Filed: 1981-12-21
Abstract: A keyboard device with the contact of one and the same electrical circuit distributed in a plurality of planes comprises a first sheet of insulating and deformable material in which there are impressed bosses 6 carrying the electrical contacts, a second insulating sheet carrying electrical contacts to cooperate with the first ones, these two sheets being flexible and cut out in the form of branches radiating from a centre, which branches are held in position between two rigid members 4 and 5 and folded to occupy different planes in space. <IMAGE>
Patent GB-2089209-A (GB)
Title: Contraceptive treatment of male mammals
IPC: A61K38/00
Filed: 1980-06-26
Abstract: Peptides which are LRF analogs that inhibit the secretion of gonadotropins by the pituitary gland and inhibit the release of steroids by the gonads can be effective contraceptives when administered to male mammals. The peptides are LRF antagonists having a binding affinity at least about 15 times that exhibited by LRF and which have an ICR<u50>u of less than 1/1. Examples of peptides which may be used are those having the structure: R<u1>u-R<u2>u-R<u3>u-D-Trp-Ser-Tyr-R<u4>u-Leu-Arg-Pro-Gly-NH<u2>u wherein R<u1>u is selected from the group consisting of hydrogen, formyl, acetyl, acrylyl, benzoyl and allyl; R<u2>u is selected from the group consisting of dehydro Pro, dehydro D-Pro, Thz and D-Thz; R<u3>u is selected from the group consisting of pCl-D-Phe, pF-D-Phe, pNO<u2>u-D-Phe and 3, 4 Cl-D-Phe; R<u4>u is selected from the group consisting of D-Trp and (imBzl) D-His; and Leu may be substituted by N<s//c>sMeLeu.
Patent GB-2092366-A (GB)
Title: Color cathode ray tube
IPC: H01J29/18
Filed: 1982-01-25
Abstract: A color cathode ray tube in which a neodymium oxide component is included either in the face plate glass or in a plate disposed in front of the face plate, the phosphor screen, having plural color phosphors formed on the inner surface of said face plate glass, includes a green phosphor having an emission peak in the wavelength region between 530 nm and 545 nm, the peak having a half-width value of 70-90 nm. The arrangement optimises image contrast and brightness characteristics. <IMAGE>
Patent GB-2106023-A (GB)
Title: Self-tapping screw
Inventor: GROSSBERNDT HERMANN
IPC: F16B25/00
Filed: 1982-02-10
Abstract: A self-tapping screw S1 comprises a single or double helix of threads which have a flank angle of less than 45 DEG , on a core with constrictions (5) between neighbouring threads, the ratio of the diameter over the threads to the minimum diameter of the constrictions being less than 1.5 and greater than 1.2, more particularly about 1.3. The axial spacing (h/2) between neighbouring threads is preferably 0.24 to 0.30 times, more particularly 0.27 times, the outside diameter. The ratio of the diameter at the thread roots to the minimum diameter of the is preferably 1.04 to 1.10, more particularly 1.07. The forward end of the screw may have cutting edges, preferably constituted by milled recesses. The threads may have indentations, preferably V-shaped, to the root of the thread profile and preferably arranged along each of several coarse-pitch helical lines (e.g. three at 120 DEG  spacing) crossing the threads with a direction of inclination, with respect to the longitudinal axis of the core, preferably contrary to that of the threads. <IMAGE>