baber/WOPTO huggingface dataset:
Patent GB-2233172-A (GB)
Title: Combined charging & supply circuit
Inventor: HO JOSEPH
IPC: G06F1/26
Filed: 1990-04-26
Abstract: A combined charging circuit for a rechargeable battery and supply circuit has a battery 22 for supplying power to an output supply VOUT and an adaptor (not shown) to provide from a mains supply power at a voltage VADAPT greater than the fully charged voltage of the battery VBAT, both to supply power to the output in place of the battery and to charge the battery. A buck convertor 32 acts as switching charger for the battery and comprises a rectifier 34 across the battery, and an inductor 36 and an electronic switch 39, e.g. a FET, in series with one another and with the supply from the battery to the output supply, the switch acting as the switching element of the switching charger when the adaptor is powered from the mains and as a low ON resistance power switch when the battery is supplying power to the output supply. Heat dissipation is therefore low. The output supply VOUT may be fed to buck and boost converters for supplying the required 5 and 12v DC outputs for a portable personal computer. <IMAGE>
Patent GB-2233733-A (GB)
Title: Improved material handling conveyor rollers
Inventor: LEON MICHAEL A
IPC: B65G39/02
Filed: 1990-07-02
Abstract: A cluster 14 for a material handling conveyor, in which a plurality of rollers 16 are mounted on a body member 18 at an acute angle to a driven shaft 10, includes bushings pressed into and recessed from each end of a central bore in each roller to provide a consistent frictional force between the rollers and support shafts 22 on the member under various conditions of moisture. Washers 50, 52 are interposed between the roller ends 27 and the adjacent cluster mountings 24, 26 on the body member 18. <IMAGE>
Patent GB-2245596-A (GB)
Title: A method for forming a metal layer in a semiconductor device
Inventor: PARK CHANG-SU
IPC: H01L23/485
Filed: 1990-09-20
Abstract: A method for forming a metal layer in a semiconductor device comprises depositing a metal 4 eg by sputtering in a contact hole 2 on the semiconductor substrate 1, constituting a stepped-portion, and then heating the deposited metal, by eg annealing in a sputtering reaction chamber so as to fill up the contact hole 1 with said metal as illustrated in Fig 2C. An upper metal or alloy layer 5 may be subsequently deposited over layer 4.
Patent GB-2234676-A (GB)
Title: Craftsman`s folding stool
Inventor: SLATTER MICHAEL JOHN
IPC: B25H1/06
Filed: 1990-09-24
Abstract: A craftsman's folding stool comprises a top (1) and four legs (2, 3, 4, 5). The legs are splayed both longitudinally and laterally for stability of the stool. Longitudinal splaying is achieved by pivoting of the legs about pivot pins (18) from a folded-in position parallel to the top through 105 DEG . Lateral splaying of the legs is achieved by setting the axes of the pins (18) at 15 DEG  to an axis transverse T to the length L of the top (1). The pins (18) are at 75 DEG  to the length of their legs.
Patent GB-2256819-A (GB)
Title: Separating solids
Inventor: WEST FRANK K
IPC: B03B5/46
Filed: 1991-06-21
Abstract: A slag containing a metal fraction is passed through a magnetic separator A to provide a fraction(s) containing an enhanced content of metal and a waste product with reduced metal content. The metal containing fraction(s) is then passed through a separator B containing a trough 10 having an endless path and containing dry sand, the floor 11 of the path being air permeable and including a depthwise partition 12, the metal and non-metal components being separated according to their density. <IMAGE>
Patent GB-2262026-A (GB)
Title: Marine jet wash equipment
Inventor: TAIT CHARLES ROBERT DUTHIE STE
IPC: B63B59/06
Filed: 1991-12-04
Abstract: Equipment for washing down a marine vessel having an on-board hydraulic system comprises a high pressure sea water pump (32) driven directly from an hydraulic motor (30) of the system. Washing down is effected using sea water drawn into the pump (via filter 33) and augmented with food industry approved chemicals (drawn in on line 36). Sea water is sprayed from a lance (34). <IMAGE>
Patent GB-2252445-A (GB)
Title: Suppressing off-axis modes in ring lasers
Inventor: PERLMUTTER MICHAEL S
IPC: G01C19/66
Filed: 1991-12-19
Abstract: A dielectric interference film having a central region of one thickness and a peripheral region of a different thickness is superimposed on one of the mirrors of a ring laser gyroscope for the purpose of suppressing off-axis resonant modes that are characteristic of a resonant cavity. The central region is designed to intercept a large portion of the fundamental mode power and a lesser portion of the off-axis mode power. The difference in thickness between the central and peripheral regions causes the reflected light from the two regions to differ in phase by approximately one-half wavelength and destructively interfere. As a result of the imbalance of the fundamental and off-axis mode powers incident on the central region, the reflectivity losses of the off-axis modes are more pronounced than those of the fundamental mode with the result that the off-axis modes are completely suppressed.
Patent GB-2251684-A (GB)
Title: Method and apparatus for detecting fire
Inventor: SABAN NISSIM
IPC: G08B17/12
Filed: 1991-12-23
Abstract: A fire condition in a monitored space is detected by: storing in a memory 6 a reference signal representing the fire condition to be detected; continuously monitoring the monitored space by a sensor system 2 which generates monitored signals representing the radiation condition of the monitored space; and cross-correlating the monitored signals generated by the sensor system with the stored reference signals to produce a correlation coefficient indicating the degree of correlation between the two signals, and thereby the presence or absence of a fire condition in the monitored space. <IMAGE>
Patent GB-2252388-A (GB)
Title: Autotensioner
Inventor: YAMAMOTO KEN
IPC: F16H7/08
Filed: 1992-01-31
Abstract: An autotensioner for a belt has a pulley support shaft (3) secured to the front face of an engine block (1), and an eccentric ring (4) rotatably supported on the pulley support shaft with the center of its outer peripheral surface offset from the center of the pulley support shaft (3). A pulley (8) is rotatably supported on the eccentric ring (4) via a roller bearing (7). A spring (10) for biasing the eccentric ring is provided to press the pulley against the belt (11). A damper (20) for imparting resistance to rotation to the eccentric ring is provided, to restrain the pivoting motion of the pulley (8). The resistance to rotation is imparted to the eccentric ring (4) by the damper (20) via a cam and cam follower arrangement (30, 28) located on the side of the roller bearing remote from the engine block (1). In an alternative embodiment (Fig 5) the damper takes the form of a viscous fluid filled space between the support shaft and the eccentric ring. <IMAGE>
Patent GB-2270021-A (GB)
Title: Joining tubular components
Inventor: BOUNCER ANTHONY
IPC: B21C37/06
Filed: 1992-08-26
Abstract: A joggle is formed at one end of a first tubular component and a flange is then formed at one end of a second tubular component by working the components, in sequence, by means of a first pair of rolls 14, 15. During working, the mutual inclination of respective axes of the rolls is varied. The flange is then placed in the joggle and the joggle is worked by a second pair of rolls 28, 29. During working of the joggle, the mutual inclination of respective axes of the rolls 28 and 29 is varied. <IMAGE>
Patent GB-2270039-A (GB)
Title: Child`s pencil sharpener with audible/visual sharpness indicator
Inventor: WU M H
IPC: B43L23/00
Filed: 1992-08-29
Abstract: A pencil sharpener includes a blade 12 in an electrical circuit also comprising a leaf spring electrical contact 15 and audible and/or visual indication means 4, 6, said circuit being capable of completion, in use, by an electrically conductive point 21 of a pencil 2 extending between the blade and the electrical contact to give warning that the pencil is sharp. The audible means 4 is a buzzer and the visual means 6 are lights. The circuit also includes an IC music generator. The sharpener may be animal-shaped. <IMAGE>
Patent GB-2270457-A (GB)
Title: Dough proving
Inventor: MARTIN ALAN
IPC: A21D8/02
Filed: 1992-09-11
Abstract: In the continuous manufacture of bread loaves, dough pieces are proved by subjecting them initially to a humid atmosphere at a high temperature, e.g., 55  DEG c, then to a humid atmosphere at an intermediate temperature, e.g., 47  DEG c, and finally to a humid atmosphere at a low temperature, e.g. 42  DEG c. A final core temperature of 38  DEG c can be obtained without the near crust temperature reaching 42  DEG c. This is achieved by having a final prover 14 divided into three sections 21, 22, 23 which are maintained at the 55  DEG c, 47  DEG c and 42  DEG c respectively preferably by blowing hot air against the bottom of the pans, the pans passing to oven 15 for baking for 12 - 17 minutes. <IMAGE>
Patent GB-2259769-A (GB)
Title: Assessing air leakage into steam systems
Inventor: GOODE CHARLES HENRY
IPC: F01K9/02
Filed: 1992-09-17
Abstract: Apparatus for assessing the ingress of air into a steam system which comprises at least a steam condenser (11) having an exit (31), a vacuum pump arrangement for maintaining the exit under a partial vacuum, and pipework (32) connecting the exit to the vacuum pump arrangement, comprises a pitot probe (33) positioned at a first monitoring point (16) in said pipework past which the flow from the condenser to said vacuum pump arrangement passes, the pitot probe being arranged to sense the total dynamic and static pressure of that entire flow. A second probe (35) is positioned at a second monitoring point adjacent said exit from the condenser, the second probe being arranged to sense the static pressure and temperature at said second monitoring point. Derivation means indicates the amount of air flowing past said first monitoring point from said total pressure, said static pressures and said temperature. <IMAGE>
Patent GB-2265962-A (GB)
Title: Tube plug
Inventor: PIERCE DAVID BLAND
IPC: F16L55/132
Filed: 1993-04-13
Abstract: A tube plug for fitting into the bore of a heat exchanger or condenser tube comprises a deformable sleeve-like locking member 20, a tapered member 30 engagable with the sleeve, and a spindle 10 having a threaded part 14, the sleeve carrying a nut 22 engagable with the threaded part of the spindle, whereby rotation of the spindle moves the sleeve axially relative to the tapered member. The bore is plugged by inserting the tube plug into the bore and rotating the spindle to produce relative movement of the locking member and tapered member to deform part of the locking member into locking engagement with the bore. <IMAGE>
Patent GB-2266589-A (GB)
Title: Apparatus for generating downhole seismic signals
Inventor: MILLER MARK A
IPC: G01V1/52
Filed: 1993-04-29
Abstract: A downhole seismic acoustical signal source capable of selectively firing numerous, prewired explosive charges E1-E32 by operating one or more respective switches (S1- S32 Fig. 3, not shown) at the surface has a firing system that uses a sequence of combinations of two conductors at a time of a cable having fewer conductors (e.g. seven plus the cable armour) than there are switches and explosive charges, and preferably a downhole diode array D1-D16, to select and fire the charge(s). <IMAGE>
Patent GB-2268550-A (GB)
Title: Mounting excitor rings of anti-lock braking systems on vehicle wheel bearings.
Inventor: DRIVER RICHARD CHARLES
IPC: F16C19/00
Filed: 1993-07-06
Abstract: A bearing for a wheel of a motor vehicle equipped with an anti-lock braking system has on the outer surface of its outer race ring (10) two alternative positions for excitor rings (25; 30). A rebate affording a cylindrical surface (22; 28) and an axial locating shoulder (23; 29) is provided at each of these positions, enabling a single design of bearing to be used in either a drum or disc brake arrangement. <IMAGE>
Patent GB-2270115-A (GB)
Title: I.c. engine exhaust gas recirculation system.
Inventor: MORIKAWA KOJI
IPC: F02M25/07
Filed: 1993-08-13
Abstract: A take-out port for exhaust gas is located downstream of a catalytic converter 22 and upstream of a muffler 23 and an EGR control valve 25, provided at the confluence of the intake air and the recirculated exhaust gas passages 11 and 24, is controlled by a slide valve 25a proportional to the electric current from an ECU (40, Fig 2) responsive to accelerator pedal position and engine coolant temperature and speed. The engine may be a four stroke. <IMAGE>
Patent GB-2270094-A (GB)
Title: Lightweight metal construction framing components
Inventor: EBERSCHLAG WARREN
IPC: E04C3/292
Filed: 1993-08-24
Abstract: A system of construction components formed out of sheet metal includes a truss, a bridging truss and various embodiments of spacer plates for joists, studs and roof trusses. The components are adapted to be used in conjunction with other metal components or conventional wood components, and provide a lightweight alternative to lumber which reduces labour costs and facilitates retaining the integrity of the structure throughout the installation of services. Truss 20 has holes 12 with swaged edges, smaller holes 18, and strengthening ribs 16, and a lip 22 at each edge; alternatively the lip may be a plain orthogonal flange. <IMAGE>
Patent GB-2273404-A (GB)
Title: Method and apparatus for electric motor control of a refrigerator cycle
Inventor: UESUGI MICHIKA
IPC: H02P6/08
Filed: 1993-12-02
Abstract: In case an instantaneous over-current flowing through switching elements of an inverter 4 is detected between a predetermined rise time point and a predetermined fall time point of each of the PWM control pulses, the output of the duty control circuit 15 is stopped immediately from where the detected current value reaches the overcurrent level to the designated fall time. In other words, the duty factor of the PWM pulse signal to be outputted, as it is under the normal conditions, is reduced so as to be cut off after the over-current has been detected. Therefore, it is possible to protect the switching elements of the inverter 4 from breakdown due to over-current, without stopping the operation of the compressor 6 and the compressor motor 7. The motor is described as a brush less Dc motor. <IMAGE>
Patent GB-2275949-A (GB)
Title: Ventilation of lean-to roof
Inventor: LANCASTER JOHN EDWARD
IPC: E04D13/143
Filed: 1994-03-14
Abstract: A roof ridge comprises means (18) for supporting roofing panels (14) and a means (30) for attaching said supporting means to a wall or like structure (12) wherein the attachment means are separate spaced elements permitting air passage therebetween when fixed to the wall of like structure. Supporting means (18) may be channel-shaped the upper wall slidably receiving connectors for a ridge cap (60) and the lower wall having means to attach a cover plate (38) with a sliding hit-and-miss ventilator (96, 98). <IMAGE>
Patent GB-2277099-A (GB)
Title: Electrochemical treatment of reinforced concrete according to accumulated current flow per unit area of steel reinforcement
Inventor: MILLER JOHN BRUCE
IPC: C04B41/61
Filed: 1994-04-15
Abstract: In a process for the electrochemical treatment of concrete having embedded steel reinforcement, eg, chloride extraction, impregnation of carbonated zones with alkaline substances, adjusting the steel-to-concrete bond strength, and sealing of the steel-concrete interface, including applying an electroconductive material to an exposed surface of the concrete to form a distributed electrode, and applying a DC voltage to said electroconductive material as a positive terminal, and to said embedded steel reinforcement, as a negative terminal, application of said DC voltage and said distributed current flow is continued in accordance with a predetermined current flow/time treatment regime which is such that the flow of current per square metre of surface area of said embedded steel reinforcement that passes between said terminals within a predetermined time period lies within predetermined limits eg. until a minimum of 100 ampere hours of current flow per square metre of surface area of the embedded steel.
Patent GB-2295924-A (GB)
Title: Timer
Inventor: STEKELENBURG ALBERT
IPC: H01H43/06
Filed: 1994-12-05
Abstract: A timer comprises an annular dial 1 which is transparent with time indicating marks 11 printed thereon, and a plurality of setting keys 3 which are mounted on an outward and downward inclined skirt 23 of a key mounting ring 2 such that the setting keys may be moved between "up" and "down" positions. A user may directly observe the time settings set by the downwardly pressed setting keys 3 through the transparent dial 1. A protective wall 7 is selectively provided around the timer to protect the setting keys 3. The key mounting ring 2 is connected to the dial 1 and a setting ring 4 by cooperable engaging elements 12, 21, 24, 41. The setting ring 4 has a toothed driving portion 44 and a flange 43 formed with grooves 42 for receiving a portion 34 of a setting key 3 when in the down position to hold it in place. A top cover 5 is connected to a base 6 by cooperable engaging elements 51, 61. <IMAGE>
Patent GB-2285579-A (GB)
Title: Chemical vapour dispenser
Inventor: GROOM MURREE RICHARD
IPC: A01M13/00
Filed: 1994-12-16
Abstract: A method of dispensing a chemical vapour comprises the steps of: providing a container bottle for the source of vapour having a screw-on cap, the cap having seal means (9) there within to seal against the bottle, the bottle and cap having retaining means (7) thereon to hold the cap captive on the bottle at least during an initial stage of unscrewing of the cap from the bottle to allow a limited passageway (13) for vapour to be formed between the bottle and the seal and between the co-operatively engaging screw threads of the cap and the bottle so that when the cap is unscrewed within its freedom of captive movement, chemical vapour from within the bottle may be released at a suitable slow rate; and deploying the bottle for use with the cap so-unscrewed. <IMAGE>
Patent GB-2296525-A (GB)
Title: Detachable fastening for mobile telecommunication apparatus
Inventor: WU KE-LEE
IPC: A45F5/02
Filed: 1994-12-28
Abstract: A clip 3 comprises a base plate (31, Fig 3) which terminates in a fixed jaw 32 at one end and has a U-shaped plate spring 30 securely attached with a hole 301 in the spring's free end. The spring 30 interacts with a flat coupling board 2, which is welded or stuck to a mobile telephone or pager, by passing through a longitudinal track 20 and a hole 21. A projection 24 on the coupling board 2 engages in the hole 301 of the spring. Jaw 32 is moved relative to the free end of the spring allowing the clip to be attached to a user's belt. The clip 3 can be detached by inserting the tip of a pen (5, Fig 8) through the gap between the jaw 32 and the coupling board 2 to release the projection 24 from the hole 301. The clip can also be used with a mounting device (4, Fig 11) for use in a car or on any other supporting object. <IMAGE>
Patent GB-2288206-A (GB)
Title: A fixing for securing scaffolding to buildings
Inventor: PHINN MICHAEL ANTHONY
IPC: E04G5/04
Filed: 1995-04-04
Abstract: A restraint fixing for securing scaffolding to buildings comprises an anchoring element 10 and a securing assembly 12 having a pair of pivoting elements 22 with projecting lug members 26. Lugs 26 engage behind head portion 14 when the elements 22 are inserted into scaffolding pole P. A locating pin 30, having a resilient clip 34, extends through holes 32, 28, thereby securing the pole P to the assembly 12. The anchoring element 10 may be grouted into the wall (see figs 1, 2) of a building or otherwise secured to a building. <IMAGE>
Patent GB-2288748-A (GB)
Title: Flush water outlet valve
Inventor: AALTONEN MIKAEL
IPC: B01D24/26
Filed: 1993-12-21
Abstract: The object of the invention is a flush water outlet valve intended for the cleaning of filter materials in a water purification basin, which flush water outlet valve consists of a fixed lower tube (11) and a movable upper tube (10), over the edge of which the foul water is led to the outlet tube (33), and the filter materials consist of substances with different density, e.g. sand and absorbent carbon layers (4, 5). For the cleaning of the materials according to the invention, the movable tube (10) is placed inside the lower tube (11) movable so that the movable upper tube can be adjusted according to the sedimentation of the filter material. <IMAGE>
Patent GB-2291627-A (GB)
Title: Ball point pen extending and retracting mechanism and method of assembly
Inventor: GERVALS GUY A
IPC: B43K24/06
Filed: 1995-07-05
Abstract: A ball point pen extending and retracting mechanism includes a one-piece synthetic resin hollow anchor bushing 12 and a one-piece synthetic resin cartridge shuttle 20 which are axially movable with respect to each other. A metal driver 34 with an internal helical section 28 engages a helical groove 30 on the shuttle 20 for moving the shuttle axially. The groove 30 is on a large diameter portion 32 of the shuttle 20. The driver 34 is axially fixed but rotatable on the anchor bushing 12 by means of annular ridge 47. A ball point pen cartridge (16, Fig 1) is fixed to the shuttle 20 and has a writing point which is extendable from and retractable into an opposite end of the anchor bushing 12. An internal annular ridge 69 in the driver 34 stops the shuttle 20 when retracting the cartridge 16. A spring 48 biasses the bushing 12 away from the driver 34. During assembly a grease, heavy oil or other dampening fluid is applied to the shuttle groove 30. <IMAGE>
Patent GB-2304361-A (GB)
Title: Door leaf frame
Inventor: COLLEY VICTOR JOHN
IPC: E06B3/72
Filed: 1995-08-21
Abstract: A door comprises a rectangular frame and a central panel 12, the frame being formed by four metal stiffening elements each extending along a respective horizontal or vertical side of the frame and secured to each other at respective corners of the frame. Decorative door styles 13 and door rails 14 are mounted on the exterior of the stiffening elements to conceal the stiffening elements, the door styles and door rails being formed of a material of less structural rigidity than the stiffening elements.
Patent GB-2299465-A (GB)
Title: Electrical connector housing assembly with readily removable insert
Inventor: HUTCHINSON JAMES DAVID
IPC: H01R13/502
Filed: 1996-03-20
Abstract: An electrical connector (14) comprises a housing assembly (32) consisting of forward and rear housing sections (138, 140) and a spacer section (142) therebetween, which are secured together in juxtaposed abutting relationship to define a through opening (48). An insert (52) containing electrical terminals therein is secured in the opening (48) by means of resilient clip (65) having inwardly inclined locking lances (67) engaging a peripheral flange (62) of the insert (52). The insert (52) is introduced into the opening (48) by way of the rear housing section (140) and forward movement of the clip (65) is prevented by a shoulder (158) of the forward housing section (138). The opening (48) in the rear housing section (140) is large enough to allow tooling to be inserted to release the locking lances (67) from the flange (62) of the insert (52) so that the insert can be withdrawn from the housing assembly (32) for repair or replacement. The housing assembly (32) is detachable from the remainder of the connector (14), as a single unit to allow the tooling access to the locking lances (67). (Figures 1, 3 and 12).