baber/WOPTO huggingface dataset:
Patent GB-2227631-A (GB)
Title: "Digital communication terminal equipment"
Inventor: YOSHIMURA JUNICHI
IPC: H04L1/24
Filed: 1990-01-05
Abstract: The equipment comprises a reference part 4A and a supervised part coupled between selected high and low-speed group transmission paths depending on states of first and second switches and a bit comparison supervision part 5A for detecting a bit error in a transmission signal. The reference part has a demultiplexer circuit 11 which demultiplexes a high- speed group signal into a low-speed group signal, a memory 12 for storing the demultiplexed signal in response to a write clock signal which is muitiplexed within the high-speed group signal, a phase locked loop circuit 16 which includes a voltage controlled oscillator 15 and controls a read out from the memory in response to a read clock signal which is derived by smoothing the write clock signal, and a state detector 18 for detecting an unstable change in an input voltage of the voltage controlled oscillator and for outputting a control signal CNT for disabling operation of the bit comparison supervision part. 
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Patent GB-2233391-A (GB)
Title: Ventilation equipment
Inventor: FARREN PETER WARWICK
IPC: F04D29/64
Filed: 1990-04-27
Abstract: A portable/transportable ventilation machine (10) comprises a support frame (20) carrying a fan (34) and an engine (48) for driving the fan, the fan being in a cowling (36), so that air or other gases are caused to pass through the cowling by rotation of the fan. The machine may be readily transported to a site for temporary operation eg. a sewer repair site. <IMAGE>
Patent GB-2234736-A (GB)
Title: Opening envelopes
Inventor: BOUVIER ALAIN GABRIEL
IPC: B65D27/38
Filed: 1990-08-01
Abstract: Flat envelopes or bags have incorporated within one edge fold an opening thread 2 and adjacent this edge a weakened area substantially centrally of the edge. This area is formed by at least two aligned cuts 1 through respective walls of the envelope substantially parallel to the edge to define a detachable area in which the opening thread is gripped. <IMAGE>
Patent GB-2247667-A (GB)
Title: Barrier units
Inventor: GREEN TERENCE RONALD
IPC: E01F13/02
Filed: 1990-08-08
Abstract: A personnel barrier 1 has a spring tensioned reel of flexible barrier material 4 which can be unwound and fixed to a separately located mounting member 2. An end clip 5 is provided at the free end of the barrier material and has a channel 8 which is open only at a lower end 11. The mounting member 2 comprises a complementary-shaped rail 13 which slidingly locates in the clip channel 8. To reduce the risk of accidental or undesirable release of the end clip 5 from member 2, a rotatable locking plate 9 is provided at the lower end of clip 5 to cover and uncover the end of clip channel 8. The rotatable plate 9 may have an aperture to allow passage of the rail 13. A member 2 may be connected to each of a number of the reel containers so that the barriers may be connected end-to-end. <IMAGE>
Patent GB-2243383-A (GB)
Title: Tubing hanger with annulus valve
Inventor: WATKINS BRUCE JAMES
IPC: E21B34/04
Filed: 1990-11-14
Abstract: There is disclosed subsea wellhead apparatus which includes a tubing hanger 16 supported within the bore of a wellhead housing 10 and having a passageway 35 through it connecting the annulus between the casing and tubing strings suspended from the hangers with the bore of the housing above the tubing hanger. The passageway is opened and closed by a valve member 50 carrying metal seal rings 53, 55 and the integrity of the seals is tested by test pressure from a reservoir 78 contained in the tubing hanger. <IMAGE>
Patent GB-2250817-A (GB)
Title: Dental caries diagnostic floss.
Inventor: GATHANI NARESH
IPC: A61Q11/00
Filed: 1990-12-12
Abstract: Dental floss or tape is impregnated and/or coated with a pH sensitive dye which changes colour in an acid environment, thus alerting the user to the potential presence of dental caries. The floss or tape may incorporate a wax to restrict leaching of the dye.
Patent GB-907854-A (GB)
Abstract: 907,854. Indicating vibrations. NAVIKA. Feb. 10, 1960 [Feb. 11, 1959], No. 4777/60. Class 106 (4). A method of determining the natural frequency of torsional, transverse or longitudinal vibrations or the deflection of a mechanical system under vibration comprises the steps of constructing from an assembly of prefabricated parts 1, 2, 11 a model which is the dynamic equivalent of the particular system under consideration, vibrating the model by mechanical, pneumatic, electrostatic, electromagnetic, piezoelectric or magnetostrictive means 3, measuring the vibrations by optical, pneumatic or electric detecting means 4, and calculating from such measurements the natural frequency or deflection of the system. Apparatus for carrying out the method comprises the model assembled from separate prefabricated parts, an electrodynamic vibration exciter 3 comprising moving coils supplied with alternating current from an audiofrequency generator 7 through an amplifier 6 and an electromagnetic detector 4. The prefabricated parts comprise a series of standard shafts which may be formed from drawn blanks of high-grade steel or other material suitable for the particular system and a series of standard adjustable connected discs 2 provided with additional weights 11 which on a reduced scale take the place of individual flywheels, couplings, crank-shafts, connecting rods and pistons. An equation is given from which the natural frequency of the system can be calculated from that observed for the model using the shaft rigidity and total moment of inertia of the system and model. The apparatus for measuring the vibrations of the model, may comprise a permanent magnet supporting coils thereon in juxtaposition with a disc having an irregularity 12 in the vicinity of the magnet so that movement of the disc varies the flux circuit of the magnet.
Patent GB-2240411-A (GB)
Title: Analog timepiece
Inventor: KOZU TOSHIO
IPC: G04B47/02
Filed: 1991-01-04
Abstract: An analog timepiece having a case (6, 8) provided with a glass (1a) and with time-indicating means (2a, 3a, 4a) movably mounted within the case (6, 8) and visible through the glass (1a), both the glass (1a) and at least one part of the time-indicating means (2a, 3a, 4a) being provided with decorative material (1b, 2b). <IMAGE>
Patent GB-2240356-A (GB)
Title: Weather strips
Inventor: SAIGA SHINJI
IPC: E06B7/23
Filed: 1991-01-29
Abstract: An end structure to provide protection from ambient environment concurrently with reinforcing end portion rigidity for a weather-strip having a hollow end portion to be installed on a vehicle body, includes a stay (11), with an attachment portion (12) for being secured to the vehicle body through the weather-strip, to fix the position of the stay and weather-strip. Also included is sealing means such as an end cap (14) with a base member (15) for assembly with the stay means, and a covering member (17) to cover the open end of the weather-strip. <IMAGE>
Patent GB-2253366-A (GB)
Title: Clamp
Inventor: BEDFORD CARL NORMAN
IPC: B25B5/10
Filed: 1991-02-14
Abstract: A clamp, e.g. for use in the furniture trade, is formed by a rectangular frame which has first and second pairs of opposed elongate members (12, 14) one pair of members (14) being formed by rods having screw-threaded ends by means of which two or more such rods can be joined together using nuts (22) in order to extend the length of the members. The rods pass through holes in the other pair of opposed members to enable an object to be clamped between the two members, the second pair of members being retained in position by suitable adjusting means such as nuts (18). <IMAGE>
Patent GB-2245046-A (GB)
Title: Rubber or plastics articles
Inventor: MCNAMARA BENJAMIN DOMINIC
IPC: B29C45/00
Filed: 1991-05-16
Abstract: A pipe or flowmeter lining is constructed by wrapping a thin sheet of rubber on a mandrel to provide a seamless liner, which is then fully or partly cured. For mass production, the liner may be made by injection moulding using a suitable mould. Also disclosed is an electrical insulator formed by injection moulding rubber material.
Patent GB-2248816-A (GB)
Title: Pneumatically driven roller conveyor
Inventor: JOHNSON BRIAN MICHAEL
IPC: B65G23/08
Filed: 1991-06-12
Abstract: Pneumatically driven rollers of a roller conveyor comprise a hollow spindle through which compressed air flows to an impeller unit within the roller and comprises apertures 72 in Fig. 6 and blades 102 in Fig. 9. <IMAGE>
Patent GB-2245325-A (GB)
Title: Air line connections for spray guns
Inventor: SMITH ROWLAND CHARLES
IPC: B05B15/654
Filed: 1991-07-16
Abstract: A spray gun is described having a ball and socket formation to connect an air delivery hose to the gun handle. The handle has a tube (12) terminating at a ball (170), a hose connection stem (172) has a serrated region (174) with a push fit into a hose. Tubular connector body (176) is screwed onto stem (172) defining a cavity (178) which holds captive a flanged seat member (180) biased upwardly by a compression spring (182). Sleeve (184) fits over the forward end of the body (176) on which it is held captive by retaining ring (186) cooperating with circumferential rib (188) on the inner surface of sleeve (184). Coil spring (190) biases sleeve (184) forwardly to abut ring (186). Body (176) is formed with three circumferentially spaced apertures through which latching balls (192) protrude, the balls being held captive between body (178) and sleeve (184). An automatic shut-off is provided which cuts off the flow of air when the gun is removed from the hose. <IMAGE>
Patent GB-2259098-A (GB)
Title: Electrochemical preparation of single phase lead telluride
Inventor: MURACKI MINEO
IPC: C30B29/46
Filed: 1991-08-30
Abstract: Single phase lead telluride is electrodeposited from a reaction medium containing free sulphamate ions, reactive lead species eg. lead carbonate and reactive tellurium species eg. tellurium dioxide, the deposition electrode being maintained at a potential of minus 0.25V to minus 0.4V.
Patent GB-2250078-A (GB)
Title: A pipe coupling holder
Inventor: HOHMANN RALF
IPC: F16L37/56
Filed: 1991-10-22
Abstract: The multiple coupling for ductwork (1,2,3,4) has coupling ends (7,8) as pipes connected together. The ends are linked together via a flexible holder (9). - The flexible holder can be released from the coupling ends, and is attached to the coupling via a snap connection, with C-shaped clamps (29) holding the coupling over more than 180 deg. The clamps are held by curved, flexible straps (30).
Patent GB-2250219-A (GB)
Title: Separating solids
Inventor: STODT EBERHARD
IPC: B07B13/16
Filed: 1991-11-08
Abstract: An improved, reciprocating internal combustion engine is disclosed herein. This engine consists of multiple cylinders (1), each closed by a cylinder head (2) and containing a piston (3) which is connected to a power output shaft. Each cylinder (1) has means (6, 7) for the intake and exhaust of working fluid. It also contains a movable, thermal regenerator (8), an alternating flow heat exchanger, and means (10) to move this regenerator. Finally, means are provided for the introduction of fuel into the cylinder. Improvements include improved heating strokes, the use of unequal effective compression and expansion ratios, and non-direct fuel injection.
Patent GB-2255262-A (GB)
Title: Rigid plastics electric heater panel
Inventor: HARRISON DOUGLAS JOHN
IPC: A01K63/06
Filed: 1992-03-25
Abstract: An electric heater comprises a heating element 10 encapsulated in a rigid plastics moulding 11. The element may be in the form of a flexible sheet and may comprise a substrate of electrically insulating material such as a woven glass-fibre mat 12, coated with electrically resistive material, such as a plastics material containing carbon particles. An aluminium plate (36, Fig 8) may be secured to one or both major surfaces of the moulding to increase the area of heat dispersion. A fan may blow air over six elements mounted in a casing (30). <IMAGE>
Patent GB-2254294-A (GB)
Title: Magnetic display device with erasing assembly.
Inventor: OKUTSU HIROYASU
IPC: G09F9/37
Filed: 1992-04-01
Abstract: A magnetic display device 1 having a case 2 in which a magnetic display panel 4 is fixedly mounted. To erase the magnetic display on the display panel, an eraser magnet 20 mounted on a vertically elongated mounting member 15 is moved horizontally along the rear surface of the display panel by means of a knob 23 projecting forwardly from the mounting member. The case has a rear frame 5 on the forward side of which are provided a pair of parallel horizontal racks 6. The eraser mounting member 15 has on the rear surface thereof a pair of rotatable pinions 9, 10 which mesh with the racks 6. As the mounting member 15 is manipulated horizontally by means of the knob 23, the pinions 9, 10 rotate along the respective racks 6 and the mounting member is moved in the horizontal direction. One embodiment includes a guide roller (25, Fig. 6) attached to the mounting member. In a further embodiment (Figs. 10 to 12) pinions (32 and 33, Fig. 12) mesh with each other. <IMAGE>
Patent GB-2269556-A (GB)
Title: A method of manufacturing an article by diffusion bonding
Inventor: WOODWARD JAMES
IPC: B23K20/02
Filed: 1992-08-15
Abstract: A plurality of titanium sheets (12, 14, 16) are assembled into a stack (10). One of the sheets (14, 16) is provided with a stop off material (26, 28) on one surface (20, 24) to prevent diffusion bonding at predetermined positions. The edges of the sheets (12, 14, 16) are welded together and a pipe (42) is welded to the stack (10) to interconnect with the stop off material (26, 28) to form a sealed assembly which is evacuated and heated to evaporate the binder from the stop off. Such binder is extracted from the assembly. The pipe (42) is then sealed by two spaced welds (44, 46). The assembly is heated and externally pressurised to diffusion bond the sheets (12, 14, 16) together. The region (48) of the pipe (42) between the assembly and the first seal (44) and the region (50) of the pipe (42) between both seals (44, 46) collapse to indicate a successful diffusion bond, or one or both regions (48, 50) are uncollapsed to indicate an unsuccessful diffusion bond. The structure formed by a successful diffusion bond is then superplastically formed to produce an article. <IMAGE>
Patent GB-2271790-A (GB)
Title: Mud pulse telemetry tool
Inventor: INNES FRANK A S
IPC: E21B47/18
Filed: 1992-10-14
Abstract: A downhole tool (100) for generating pressure pulses in a drilling fluid comprising an elongate body (107, 127) and a plurality of blades (116) spaced around the body. The blades are divided into front sections (116a) and rear sections (116b),which are angularly displaceable relative to each other between a first position in which the sections are aligned and a second position in which the rear sections obstruct fluid flow between the front sections to generate a pressure pulse. The tool includes a first set of driving blades (160) in front of the blades (116) for generating a torque on the blade sections and an escapement means which is radially movable to permit stepwise rotation of the blade sections, and thus to move the blade sections between the first and second positions. The tool additionally comprises a set of stator blades (162) which reduce swirl of the drilling fluid in the region in front of the blades 116.   <IMAGE>
Patent GB-2263638-A (GB)
Title: Substituted pyrazoles, isoxazoles and isothiazoles as neurotensin antagonists
Inventor: CHAKRAVARTY PRASUN K
IPC: A61K31/425
Filed: 1993-01-20
Abstract: Substituted pyrazoles, isoxazoles and isothiazoles of formula (I) as disclosed in WO91/15479-A1 are neurotensin antagonists which are useful in the treatment of certain CNS and GI disorders. The compounds have the general formula: <IMAGE>
Patent GB-2266207-A (GB)
Title: Vehicle detection system
Inventor: STAFFORD GARY PATRICK
IPC: G08G1/01
Filed: 1993-04-13
Abstract: A vehicle detection system for the detection of vehicles approaching, as distinct from receding from, traffic lights, employs a homodyne radar operating at 24 GHz. Separate transmitting and receiving patch antennas 1, 3 may be squinted apart slightly to produce a fairly narrow azimuth beam. The received signal is fed to two mixers 7a, 7b in quadrature to give doppler outputs, I, Q which lag or lead each other according to the target approaching or receding. Each channel signal is filtered 11a, 11b to limit the detected speed to about 5 to 70 miles/hour and then fed to further individual mixers 13a, 13b each with a quadrature local oscillator 17 at half the speed range frequency. This process produces a folding of the characteristics and on combination in a summing amplifier eliminates the 'receding' signals when the signals are summed 15. Threshold detection then indicates an approaching vehicle. <IMAGE>
Patent GB-2265794-A (GB)
Title: Digital radio telephone system
Inventor: WILDER RONALD P
IPC: H04M3/56
Filed: 1993-04-29
Abstract: The telephone system is realized by a unique dynamic time slice architecture which allows for up to 480 transfers of data. A dual port RAM (310) is utilized in which are stored two pages of data, containing time slice information identifying the sending and receiving devices for each time slice slot within the frame. The time slice configuration can be easily modified to accommodate a change in the current system configuration, for example, a handset connecting or disconnecting from a central office line (365), or the initiation of a conference call. The time slice configuration is modified by updating the second page and swapping the two pages at the beginning of the next frame so that the time slice controller (310) accesses the second page and the configurations specified therein. Thus, the system can be updated and controlled in real time with no delays to the users of the telephone system. The conferencing circuit (33) linearly combines digitized audio data received from different sources over successive time slice slots in a single frame on a real time basis. <IMAGE>
Patent GB-2267958-A (GB)
Title: Gas separation distillation column for cryogenic unit
Inventor: BRACQUE GILLES
IPC: F25J3/02
Filed: 1993-06-16
Abstract: A pre-equipped subassembly of a cryogenic unit is constructed in the factory, and consists of a distillation column 1 with its tubing elements (2) disposed essentially on one side of the column so as to be inscribed within a lateral volume 3 of reduced section whose height h is independent of the thickness of insulation ultimately required for the operation at the worksite of the column in a cold box, the subassembly being disposed partially in a transport cradle 4 shielding the lateral volume 3. The subassembly 1, 2 is disposed, preferably with its cradle 4, in a cold box constituted by a metal or concrete casing, for example tubular (figure 3), in which is also disposed at least one insulated reservoir (11, 12 Figure 3) of cryogenic liquid. The tubing elements may alternatively be disposed in two bisymmetric groups, the elements being protected by caps (31, 32, Figure 4). The internal volume of the cradle may be filled with solid insulation (14, Figure 3). Air gases may be separated in the unit. <IMAGE>
Patent GB-2268489-A (GB)
Title: Process for the preparation of DI-ALKYL compounds of group 2B metals
Inventor: SMIT CORNELIS JACOBUS
IPC: C07F3/00
Filed: 1993-06-30
Abstract: Di-alkyl compounds of a Group 2b metal are prepared in a process in which a Group 2b metal is reacted with an alkyl halide in the presence of an alkali metal to obtain the di-alkyl compound of the Group 2b metal and alkali- metal halide, in which process the atomic ratio of alkali metal to Group 2b metal is above 1:1.
Patent GB-2279132-A (GB)
Title: Tap locking device
Inventor: TAY DAVID KIM GUAN
IPC: F16K35/06
Filed: 1993-07-21
Abstract: A tap locking device to be attached to the shaft (18) of a tap comprises a hand grip (16) having mounted therein a locking barrel (12) to be activated by a key (11) (Fig. 1, not shown). A locking sleeve (13) attached to the hand grip (16) is provided with apertures (19) which accommodate ball bearings (17). Upon turning of the key (11) and barrel (12), a cam (15) rotates to force the ball bearings (17) into respective recesses (20) in an engagement cylinder (14) attached to shaft (18). The ball bearings effectively rotationally lock engagement sleeve (14) to locking sleeve (13) to enable activation of the tap by rotation of hand grip (16). In the unlocked configuration, with ball bearings (17) disengaged from respective recesses (20), the hand grip (16) will rotate freely, disabling operation of the tap (25). <IMAGE>
Patent GB-2280791-A (GB)
Title: Pin and socket electrical connector
Inventor: REES ALUN DAVID
IPC: H01R13/187
Filed: 1993-08-04
Abstract: A socket 4 has a collet 8 housed in a bore 10 for receiving an end 12 of a pin 2. The collet 8 has legs 22 projecting into the bore 10 to grip the pin end 12 when it is inserted in the bore 10. The arrangement requires a relatively low insertion and extraction force, and the socket 6 need not be of springy material. <IMAGE>
Patent GB-2280759-A (GB)
Title: Operation of electrical heating elements
Inventor: MA THOMAS TSOI-HEI
IPC: F02P19/02
Filed: 1993-08-25
Abstract: A method of driving a heating element such as a glow plug from an electrical power supply comprises measuring the supply voltage periodically, initially driving an unsustainably high current through the heating element for a length of time related to the value of the measured voltage to bring the heating element rapidly to its operating temperature and subsequently regulating the mean current supply to the heating element to maintain the heating element temperature between upper and lower threshold limits. The heating element temperature is predicted from the energy gain (based on the supply voltage) and the energy less through at least radiation. <IMAGE>
Patent GB-2270267-A (GB)
Title: Safety apparatus for bench press
Inventor: FERRIS JOHN WILSON
IPC: A63B21/078
Filed: 1993-09-02
Abstract: A safety apparatus for a bench press (10) comprises a stand (12) positionable adjacent to the support end of a bench press (10). The stand (12) has a cantilevered arm (18) extending over the top of the supports (14). A series of pulley wheels (26) is carried on said stand (12) and a non-extendible element (28) is threaded over the wheels. One end of the element (28) is connectible to a barbell (30) and the other end terminates in means by which a lifting effort is obtained on actuation provided by body movement. The means may be a pedal fitting (32) in the form of a toe cap or foot strap, or may be an electric motor activated by a pressure pad switch. <IMAGE>
Patent GB-2283672-A (GB)
Title: Double tub baby bath structure
Inventor: LIN JUNG-FA
IPC: A47K3/034
Filed: 1993-11-10
Abstract: A double tub baby bath structure 90 comprises a primary tub 10 defining therein a water containing recess having a size large enough to receive a child and a secondary tub 20 adjustably mounted within said primary tub 10. The secondary tub 20 is smaller than the primary tub 10 but large enough to receive a younger child or a baby and has a plurality of apertures 201 formed therein to allow water to flow through. A movable support plate 30 is provided for adjustably supporting the secondary tub 20 within the primary tub 10 so as to allow the secondary tub 20 to change location thereof relative to the primary tub 10. A control lever 40 releasably holds the movable support plate 30 at a desired position within the primary tub 10. The primary tub 10 may be mounted on wheels 105 and a ventilated hood 60 may be fitted so that the structure can be used as a perambulator when not filled with water. <IMAGE>