baber/WOPTO huggingface dataset:
Patent GB-2214216-A (GB)
Title: Mine roof support with face sprag
Inventor: WATERS JOHN HENRY
IPC: E21D23/04
Filed: 1988-01-09
Abstract: A sprag 16 is provided for use on a mine roof support 12, the sprag having a link 18, 19 for connecting the sprag 16 to the mine roof support. The link has a first pivotal connection 21 with the sprag 16, and a second pivotal connection 22 for connecting the link to the mine roof support, the distance between the pivotal connection being adjustable. This enables the sprag to have a good reach to a mine face to be supported, but enables the sprag to be compactly stowed when not in use, and reduces the extent to which the miner's walkway is obstructed when the sprag is moved from a working position to a stowage position. In a preferred embodiment, the adjustability of the distance between the pivotal connections 21 and 22 is brought about by forming the link as two levers 18 and 19 which can be folded towards or away from one another. <IMAGE>
Patent GB-2202457-A (GB)
Title: Indoor game apparatus based on American football
Inventor: KNIGHT ANTHONY MARK
IPC: A63F7/06
Filed: 1988-03-11
Abstract: American football game apparatus comprises a portable playing surface representing an American football pitch, a grid provided on the portable playing surface, a plurality of playing pieces depicting two teams of American football players, random selector means (die), two pairs of goal posts for locating one pair at each end of the portable playing surface, and a playing member, e.g. a disc movable during the playing of a game. Flat bases of the playing pieces may be used to propel the disc (in the manner of tiddly-winks) either to another part of the playing surface or towards one of the goals. A ball which can be carried by a playing piece may also be provlded. Also disclosed are numerous rules governing how the playing pieces are to be moved over the playing surface in dependence upon the die.
Patent GB-2212576-A (GB)
Title: Connection assembly
Inventor: TIDMUS PETER HARVEY
IPC: F16L37/00
Filed: 1988-10-27
Abstract: A connection assembly for a waste disposal unit comprises a stainless steel, open-ended tubular sink bush (35), which can be retained in a sink outlet hole by means of its flanges (36), a plastics material hopper (12), a lock ring (30), and a rubber seal (24). An end of the sink bush (35) has an annular groove (37) in its outer surface for engagement with a corresponding annular projection (25) on the internal surface of the hopper (12). Slots (28) divide one end of the hopper into flexible fingers (29) which allow the sink bush to be fitted in the end of the hopper as a snap-fit. Once the lock ring (30) is screwed up around the fingers (29) the hopper and sink bush are securely connected. The seal (24) is compressed by an end of the sink bush (35) and prevents leakage between the hopper and sink bush.   <IMAGE>
Patent GB-2212192-A (GB)
Title: Low toxicity oil base mud systems
Inventor: NEWLOVE JOHN CHRISTOPHER
IPC: C09K8/36
Filed: 1988-11-07
Abstract: A low toxicity oil base mud which comprises (a) a petroleum oil containing less than 20 wt% aromatic hydrocarbons and neutralized sulphonated EPDM terpolymer for imparting viscosity to the oil and (b) a minor amount of water emulsified as an internal phase in the oil.
Patent GB-2231007-A (GB)
Title: Road-rail vehicle
Inventor: RANDALL BRYCE ERNEST
IPC: B60F1/04
Filed: 1989-04-15
Abstract: The rail running gear of a road-rail vehicle has its wheels arranged in paired bogies 1 pivoted on a rocking beam centre 2 above the wheel centre line and arranged such that the running gear retraction system causes said bogie to rotate upward and outward in arcuate manner during the stowing stage. When said stowing motion is completed the bogie is inverted thus increasing ground clearance. <IMAGE>
Patent GB-2221072-A (GB)
Title: Programmable sequential-code recognition circuit
Inventor: CHOI JUNG-DAL
IPC: G01R31/3185
Filed: 1989-07-18
Abstract: A programmable sequential code recognition circuit comprises an individual code recognition circuit 10 for recognizing each input code, and a sequence recognition circuit 20 for recognizing the sequence given for individual codes, so that a specific mode of a respective semiconductor device may be selected by the input combination sequentially input. <IMAGE>
Patent GB-2235091-A (GB)
Title: Contact breakers for distributors
Inventor: WHITE DONALD WILLIAM
IPC: F02P7/063
Filed: 1989-08-04
Abstract: A contact breaker for a distributor of an automotive vehicle has the gap between its electrodes set by an adjusting screw 9 which engages an abutment 11 connected to one electrode carrying plate of the contact breaker to cause movement relative to the other electrode carrying plate to give a precise adjustment of the gap. The plates are secured by a clamping screw which passes through the abutment 11.   <IMAGE>
Patent GB-2221563-A (GB)
Title: Method of detecting the position of an optical head
Inventor: MINOURA KAZUO
IPC: H04L12/933
Filed: 1989-10-09
Abstract: In the method according to the present invention, before data are recorded on an optical card or the data recorded on the card are reproduced, an optical head for applying a light beam to the optical card and the optical card are displaced relative to each other in the direction of track of the optical card and a track number written on the optical card is read to thereby detect the position of the optical head relative to the optical card. The card includes a track 11 for tracking and a data track 12 with data track number for identifying the data tracks at both ends of each track 12. <IMAGE>
Patent GB-2237751-A (GB)
Title: Method of decreasing black liquor viscosity
Inventor: KIISKILA ERKKI
IPC: B01D3/34
Filed: 1989-11-03
Abstract: A method of decreasing the viscosity and improving the evaporability of black liquor from a soda pulping process. The soda black liquor is heat treated at a temperature of 150 DEG -210 DEG C for 5-60 min before the final evaporation thereof in the presence of anthraquinone or a corresponding organic catalytic agent.
Patent GB-2225055-A (GB)
Title: Lever catch
Inventor: HIRONS STEPHEN
IPC: F16L23/06
Filed: 1989-11-16
Abstract: An overcentre action catch secures together two ends (15, 16) of a band (14) and brings the ends closer to each other when in its secured position, the band (14) being operative to secure a lid to a container. The catch has a first part (11) provided with formations (25, 28) for securing to one end (15) of a band, a second, lever-like part (12), is movable to secure or release the catch and a third hook-like part (13) having a hook (37) for engaging in an aperture (38) in the other end (16) of the band 14. As shown the first part (11) has a securing formation (25) in the form of a headed stud but in another embodiment a pressed-out hook can be employed. <IMAGE>
Patent GB-2241298-A (GB)
Title: A hydraulic cylinder
Inventor: KOPACIN BORIS
IPC: F16D25/12
Filed: 1990-02-27
Abstract: A hydraulic cylinder comprises a slave cylinder body 10 having an axial bore 14, a piston 16 slidable in the bore and an output member 17 through which movement of the piston is transmitted. The slave cylinder body 10 is connected to a master cylinder 11 by a conduit 11a and all three are prefilled with hydraulic fluid. A shipping and installation restraint 27 is provided for holding the output member 17 of the prefilled slave cylinder in a retracted position and the restraint ruptures upon first actuation of the slave cylinder of a clutch system. The output member 17 is formed integrally with the restraint 27 which is carried by the body 10. A gaiter 33 extends into the bore 14 of the body 10 and a pressure relief groove 26 relieves working pressure in the slave cylinder after the piston 16 has moved beyond a predetermined position in the bore 14. <IMAGE>
Patent GB-2242101-A (GB)
Title: Telephone signalling
Inventor: COMFORT JOHN JERVIS
IPC: H04M3/30
Filed: 1990-03-15
Abstract: A telephone circuit is provided for distinguishing between a normal incoming telephone call and a test telephone call. A series connection of capacitor (C1), bell (2) and relay (13) is provided across the telephone line pair (1). The relay (13) is normally open so that a ringing signal appearing across the telephone line pair (1) does not cause the bell (2) to ring. The ringing signal is sensed by a ringing detector (15) which supplies an output signal to a processor (6). If the ringing signal is present for more than a predetermined time, such as three seconds, the relay (13) is caused to close, thereby enabling the bell (2) to sound. When the telephone is polled from a central station to cause it to undergo a self-test routine, a ringing signal is used which consists of a series of three ringing signals each lasting less than the predetermined time. Consequently, when such a ringing signal is received, the relay (13) remains open, and there is no audible ringing tone. The system thus enables a testing routine to be carried out by the telephone without causing the telephone to ring.
Patent GB-2245731-A (GB)
Title: Underwater communications using frequency pattern recognition
Inventor: KERR ROBERT ROWEN
IPC: H04B11/00
Filed: 1990-07-03
Abstract: An underwater communication system in which a micro-computer (11) controls an inverse fourier transform (12) to produce a time domain signal consisting of several frequencies in parallel capable of having unique meaning. The signal is converted to analogue by converter (13), amplified (14) and transmitted into the water by a broad band transducer (15). The signal is received by a transducer or transducer array (21) amplified (22) and converted to digital by converter (23). The analogue signal is converted to the frequency domain by a fast fourier transform (24) the output of which is scanned for a correlation with the frequency pattern of transmission with allowance for possible doppler shifts by a micro-computer (25). On adequate correlation of a unique frequency pattern the information corresponding to that pattern will be displayed. <IMAGE>
Patent GB-2236583-A (GB)
Title: Support base for ceramic material to be fired
Inventor: SELTMANN DIETER
IPC: F27D5/00
Filed: 1990-07-16
Abstract: Support base for ceramic material (26) to be fired, consisting of a multiplicity of elements (10) which are dimensionally stable above the maximum firing temperature and which each consist of a lower, foot section (12) standing on a base (20) and of an upward-extending, pin-type section (14) whose end faces (24) serving as placing surface for the material (26) to be fired are mutually aligned, at least the foot sections (12) of the elements (10) being fixed in position relative to one another and free spaces (28) remaining between the upper sections (14). <IMAGE>
Patent GB-2238654-A (GB)
Title: Dispenser cathodes
Inventor: JEONG JONG-IN
IPC: H01J1/28
Filed: 1990-11-09
Abstract: A dispenser cathode comprises an electron emissive material (2b) including at least one material selected from the group consisting of Ba and Ba oxide, a porous metal base body (1b) having a plurality of diffusing cavities and positioned on the electron emissive (2b) and an alloy thin film layer (6b) consisting of scandium tungstate and tungsten which is disposed between the electron emissive material and the porous metal base body. Instead of the alloy thin film (6b), a pellet (6c - Figure 3) containing scandium tungstate may be interposed between said electron emissive material and the porous metal base body. The activation aging time of the dispenser cathode may be greatly shortened as compared with the conventional dispenser cathode, and the damage of Sc by ion bombardment prevented. Thus, stable thermoelectron emission can be obtained. <IMAGE>
Patent GB-2254496-A (GB)
Title: Switched mode a.c. voltage converter
Inventor: GYBBON-MONYPENNY MICHAEL
IPC: H02M5/293
Filed: 1991-03-12
Abstract: A switched mode voltage converter for the control of an a.c. supply voltage has input terminals for connection to an a.c. supply 16 and output terminals for connection to a load such as a motor. A first bidirectional switch Sa, and an inductor L are connected in series between the first input terminal and the first output terminal. A second bidirectional switch Sb is connected between the common second input and output terminals and a node between the first bidirectional switch Sa and the inductor 11. A capacitor C2 is connected across the output terminals and control means 18 is provided to control the alternate switching of the bidirectional switches Sa, and Sb. The output voltage is thus dependent on the duty cycle of the bidirectional switches Sa and Sb. Each bidirectional switch comprises a diode bridge D1-D4 or D5-D8 and a FET Q1 or Q2. The control circuit 18 includes an integrated circuit ICI pulse width modulation controller. <IMAGE>
Patent GB-2242112-A (GB)
Title: Expandable ring or bracelet
Inventor: NEWMAN SUSAN
IPC: A44C9/02
Filed: 1991-03-20
Abstract: An expandable ring or bracelet has hollow hinged parts 12, 14. A spring element 18 is secured in one of the hinged parts at 20 and slides within the other as the article is expanded or closed. A notch 26 in the spring element engages one or more pins 28 in the appropriate part so as to provide a snap action coupling to hold the ring or bracelet in a closed position. <IMAGE>
Patent GB-2242464-A (GB)
Title: Drill bit
Inventor: HEDLUND JAN-GUNNAR
IPC: E21B10/56
Filed: 1991-03-25
Abstract: A drill bit, preferably for rotary-percussive drilling, has a bit body (10) including a front face (12), at least one frontal button insert (19) formed of hard metal, at least four gauge button inserts (21) formed of hard metal, a central flushing passage (15) that communicates with at least one flushing sub-passage emerging in said front face (12). At least one frontal button insert (19) has its tip tilted towards the centre of the drill bit. Also the sub-passages for flushing medium emerge in frontal flushing grooves in the front face (12) of the drill bit. Such an arrangement tends to reduce clogging of the flushing passages when drilling in clay or similar types of soil. It also makes it easier, especially in button drill bits having an effective diameter in the range of 40-50mm to arrange a sufficient number of button inserts and flushing passages in the front face of the drill bit. <IMAGE>
Patent GB-2245059-A (GB)
Title: Light signal sampling system
Inventor: CROSBY PHILIP S
IPC: G01J1/02
Filed: 1991-04-02
Abstract: A sampling streak oscilloscope responsive to a light input signal stores charges on a 2 dimensional CCD target (26) by means of an electron beam rapidly scanned across a narrow dimension of the CCD target in coincidence with a segment or portion of the light input signal. The beam is scanned rapidly across the target in the Y direction and more slowly along the X direction in order to enhance the sampling rate. The time relationship between a streak and the light input signal is changed by a programmable delay (42) to record a charge pattern for another segment of the input signal, while charges representative of a prior segment are transferred along the CCD array. A representation of the entire input signal is built up in memory. <IMAGE>
Patent GB-2249481-A (GB)
Title: Orthopedic splint
Inventor: CLARK EVERETT NELSON
IPC: A61F5/058
Filed: 1991-09-18
Abstract: An orthopedic splint (10) comprises a neoprene rubber tube having an internal surface forming a curved splint passage (50) for snugly fitting on a joint (14, 16) to be treated and defining a radially directed internal ridge (52) extending lengthwise along the tube for pressing againt the joint The splint is constructed by folding in half a flat sheet of neoprene rubber (18), attaching free end portions (26, 28) of the sheet to form a transition tube (44) having a transition internal passage (46), sewing a seam (40) in said free adjacent free edge portions to define a wedge shaped angle pointing away from the transition internal passage having an angle of between 140-160 DEG , cutting away excess neoprene sheet so as to leave a V- shaped seam allowance (42) at the free edge portions beyond the seam to form the ridge, and turning the transition tube inside out to form the splint (10). <IMAGE>
Patent GB-2262690-A (GB)
Title: Demodulator with frequency error correction
Inventor: ASPIN GORDON JAMES
IPC: H04L27/22
Filed: 1991-12-20
Abstract: A demodulator for use in radiotelephone communication receivers and in particular, for demodulating digital data from GMSK phase modulated carriers operating in a time division multiple access (TDMA) format. The demodulator compensates for frequency errors in the receiver's local oscillator by remodulating (7) the threshold-detected (4) bit stream (5) and comparing (8) the phase of the remodulated signal with a time-delayed version (6) of the base-band signal. From the resulting phase error signal the frequency error is computed by linear regression analysis (9). The frequency error is used as a frequency correction signal (10) for the local oscillator. <IMAGE>
Patent GB-2254857-A (GB)
Title: Sachet for laundry treatment
Inventor: GARNER-GRAY PETER FREDERICK
IPC: C11D17/04
Filed: 1992-02-18
Abstract: A laundry treatment product in the form of a closed, water-permeable sachet 1 contains a particulate laundry treatment composition containing an ingredient unstable to moisture in a first compartment 5 of the cachet, and in a second compartment 2 a second particulate component (the remainder of the ingredients). Delivery of the unstable ingredient can only be via the second compartment through a wall consisting of porous material wherein all the pores are larger than the intra-particle pore size of the second particulate component but small enough to prevent passage of both first and second particulate components in the dry state. The moisture-sensitive ingredient may be a percarbonate. <IMAGE>
Patent GB-2265328-A (GB)
Title: Razor head of a wet razor
Inventor: COFFIN DAVID CHARLES
IPC: B26B21/40
Filed: 1992-03-13
Abstract: A wet razor head comprises a plastics body (1) having a cover (20) and a front guardbar (18) which define a surface for engaging the skin of the user, and a razor blades (2) disposed in said plastics body (1), wherein, a series of strands (11) extend over and perpendicular to the cutting edges such that at least one of the cutting edges protrudes beyond the tangent plane formed by the skin engaging surfaces on the front guardbar (18) and rear cover (20) by at least 0.02 mm. Ranges for the tangent lengths and shaving angles in relation to the strands (11) which produce the ideal shaving geometry are specified. <IMAGE>
Patent GB-2253829-A (GB)
Title: Label applying apparatus
Inventor: THIRKETTLE BRIAN JAMES
IPC: B65C9/18
Filed: 1992-03-16
Abstract: A label printer 15 delivers adhesive labels 17 with price/weight data for attachment to an article 12 which has been weighed. The labels 17 are held by vacuum on an applicator head 24 and delivered using a short air blast to blow the labels onto the articles. A transfer mechanism 20 transfers the labels 17 from the printer 15 to the head 24. The mechanism 20 is mounted for linear reciprocal motion and the head 24 is mounted for movement in an arcuate path so that it can closely approach the article 12 to receive the label but the horizontal aspect of the label 17 held by vacuum to the head 24 is maintained through the movement of the head 24. The extent of reciprocal motion of the mechanism 20 is adjustable to cope with labels 17 of different lengths and the arcuate path of movement of the head 24 is adjustable to cope with articles 12 of different heights. The head 24 includes a rotatable pad (46' fig 5) which carries the label 17 and the pad (46, figs 5) is rotated to adjust the singular orientation at which the label 17 is applied to the article 12. <IMAGE>
Patent GB-2258301-A (GB)
Title: Miniature lamps
Inventor: OSHINO HIROSHI
IPC: H01K1/26
Filed: 1992-07-28
Abstract: A sub-miniature lamp (8) in which a lamp body (1) having a filament (2) and an envelope is covered with a soft silicone rubber cap (3) of a predetermined colour having an opening at one end and extending to a predetermined length of the lead wires (4) extending from the lamp body. A closure member (7) is fitted to the opening of the envelope to seal the opening. The coloured silicone rubber cap (3) being fitted with an adhesive agent (6) or a disc pad (7). <IMAGE>
Patent GB-2269372-A (GB)
Title: Cap with tamper-evident band
Inventor: DUDZIK HENRYK
IPC: B65D41/04
Filed: 1992-08-06
Abstract: A cap (10) for a container, eg a glass container, has a top (11) and a skirt (14), the end of the skirt (14) remote from the top (11) being attached by a plurality of frangible means (30) to a ribbed tamper-evident band (20). The band (20) has faces (22) for engaging a formation on the container and has sufficient flexibility to allow the faces (22) to be pushed over the formation. A plurality of axially extending ribs (40) are provided on the band (20) to which the frangible means (30) are connected, the ribs (40) being less flexible than the remainder of the band (20). Preferably the ribs are triangular in cross section and the band is rebated at (50) between the ribs to increase flexibility. The top (11) of the cap may carry sealing projections (12) and (13). The cap is moulded in one piece. <IMAGE>
Patent GB-2260364-A (GB)
Title: Pay-phone coin box
Inventor: FLETCHER ERNEST
IPC: G07F9/06
Filed: 1992-08-17
Abstract: A cover (10) for a pay-phone coin box, has interiorly thereof a latching mechanism with latching rods (46A, B, 48A, B) and pivoting actuating plates (34A, B, 36A, B) therefor, in order to hinder direct access to the latching parts drill resistant members (60A, B) are interposed between the cover (10) and the latching member adjacent to latching rods and the pivoting actuating plates thereof. The members comprise two plates, each of which serves a pair of latching rods at one side of the cover with each plate extending transversely from an inner side wall adjacent the latching rods to beyond the pivot connectors from the operating mechanism, and in respect of the other longitudinal direction extends up to the opposite inner walls. The plates have cutouts to fit round lugs (62, 64, 66, 68) of the cover recessing slidably the latching rods. Further drill resistant members may be provided to further protect access to the latching member adjacent the rods and pivoting plates and yet further members may be fitted into recessing between double side walling of the cover to protect the peripheral extent of the cover. <IMAGE>
Patent GB-2257803-A (GB)
Title: Tunable optical filters
Inventor: HILL ALAN MICHAEL
IPC: G02B6/34
Filed: 1992-08-20
Abstract: A tunable optical filter comprises an array (3) of optical fibre (5 to 8) located within a capillary tube (10) and mounted on a solenoid movable support (14) and positioned in front of a lens (4) and diffraction grating (2). The filter provides simultaneous tuning filtering between fibres (5 and 6 and 7 and 8). By coupling fibres (5 and 6) to a ring laser and fibre (8) to an optical receiver simultaneous tuning of a laser and receiver is possible. The filter finds particular application in passive optical networks.
Patent GB-2272253-A (GB)
Title: Engine ignition distributor
Inventor: PROKOPIUS JOSEF PETR
IPC: F02P7/02
Filed: 1992-09-08
Abstract: In a distributor body 8 having a cap 1 and a rotor arm 2, an encapsulated printed circuit 13 including an electronic power switch 6 and an electronic timer are located with a sensor 12 receiving magnetic or light signals from a carrier 4 rotating with the spindle 14. The sensor signals control the ignition circuit and a timing light (10, Fig. 2) and a timing circuit adjuster (11) are located in the body 8. The circuit 13 and other components may be located in a metal container 7. <IMAGE>