baber/WOPTO huggingface dataset:
Patent GB-2034137-A (GB)
Title: Dual phase-control loop horizontal deflection synchronizing circuit
IPC: H04N5/12
Filed: 1979-10-04
Abstract: A television horizontal deflection synchronizing system uses two phase- lock loops (30, 70). A horizontal oscillator (32) operating at a frequency greater than the horizontal frequency is counted and a bilevel signal near the horizontal frequency is generated. A first phase-lock loop (30) having a relatively long time constant controls the oscillator (32) to maintain the bilevel signal in frequency and phase synchronism with horizontal synchronizing signals. In order to compensate for load-dependent variations in the delay of the horizontal deflection stage, a second phase-lock loop (70) is used. The second phase-lock loop (70) includes a phase detector, (92) one input of which is coupled to an output of the first phase-lock loop (30) and a second input of which is coupled to the deflection circuit (140) for responding to the retrace pulse for enabling the phase detector (92) to produce a current of a first polarity when the bilevel signal has a first value and a current of a second polarity when the bilevel signal has a second value. A loop filter (120) is coupled to an output of the phase detector for filtering the first and second polarity currents to form a control signal. A phase controllable source (72) includes a control input coupled to the loop filter (120) for producing horizontal-rate drive pulses at a time which makes the retrace pulses synchronous with the bilevel signal. <IMAGE>
Patent GB-2033579-A (GB)
Title: Ultrasonic probes
IPC: G01N29/24
Filed: 1979-10-05
Abstract: With the aim of providing an ultrasonic probe capable of delivering differently angled ultrasonic beams at choice on application of the probe to a surface of a workpiece to be examined by ultrasonic waves, the probe comprises transducers 9/1 to 9/18 in contact with a shoe 2 having a working face 3 adapted to the workpiece surface, wherein a plurality of transducers are arrayed on the shoe along an arc 5 of a cylinder of which the axis 6 lies in the working face of the shoe and are adapted when employed in groups of adjacent transducers, some at least of which groups may overlap one another, to generate or to detect respective working beams of ultrasonic waves in the shoe the axes of which beams are respectively differently angled and all pass through the cylinder axis region of the shoe working face. Delay lines to or from some of the transducers of a transducer group may be employed. <IMAGE>
Patent GB-2034782-A (GB)
Title: Recording Materials
IPC: B41M5/155
Filed: 1979-10-11
Abstract: A recording material includes a support coated with a synthetic colour developer at a coating rate not less than 0.2 g/m<2> and an inorganic pigment at a coating rate not less than 1.8 g/m<2> together with a binder, said inorganic pigment having an oil absorbance not less than 45 and a volume average particle diameter not larger than 8 microns.
Patent GB-2045117-A (GB)
Title: Inserting components into printed-circuit boards
IPC: H01R43/20
Filed: 1980-02-19
Abstract: Components, e.g. terminal pins, are inserted into a printed-circuit board under programmed control using a pin- insertion head which is charged with pins from a reciprocating shuttle. The insertion operation is executed after the board has been automatically positioned under the head by motors (20, 21) in accordance with the outputs from comparators (82, 83) that compare coordinates of actual board-position read out from strobed stores (84, 85) with demanded coordinates read out by a punched-tape reader (80). Each instruction on the tape includes a command for pin-insertion, or a 'jump' command by which response of the machine to the condition in which the difference between the actual and demanded coordinates is zero, is to proceed directly to execution of the next instruction so that the head is not then operated to insert a component. <IMAGE>
Patent GB-2044428-A (GB)
Title: Rear fog lamp for motor vehicles
IPC: F21V13/04
Filed: 1980-03-06
Abstract: A rear fog lamp (1) for use in motor vehicles includes a light source (2), a parabolic reflector (3) and a diffuser plate (4) having a prismatic inner surface (5) for diffusion of the beam of parallel rays reflected by the reflector (3). The parabolic reflector (3) subtends an angle (E) around its focus (F) which is less than 2 pi steradians, in comparison with a known lamp whose reflector (6) subtends an angle (G) which is very much greater than 2 pi steradians. The surface 5 comprises a central portion 11 defined by a plurality of spherical lenses 11a arranged side by side and two lateral portions 12 each defined by a plurality of cylindrical lenses 12a arranged side by side, each cylindrical lens having on its convex surface a central longitudinally-extending V-shaped depression. Corner portions 13 defined by groups of spherical lenses 13a may also be provided. <IMAGE>
Patent GB-2045703-A (GB)
Title: Saddles for pedal cycles and the like
IPC: B62J1/08
Filed: 1980-03-10
Abstract: A saddle comprises a seat member 11 with apertured lugs 14 at its rear receiving upper wings 36 of a moulded plastics resilient suspension unit 19 having lower wings 37 apertured to receive bolts 17 extending through loops 16 in a substantially U-shaped saddle game. Side portions 40 of the frame are secured by clamps 50 to a saddle post. The unit 19 can have apertures in its central portion as shown or may have a thinned central portion with a peripheral rib. A wedge integral with the seat member 11 holds the front of the saddle frame to the seat member 11. The seat member 11 may be of plastics and may carry a layer of foamed plastics covered by a plastics cover 10. <IMAGE>
Patent GB-2073300-A (GB)
Title: Cable clamps
IPC: F16B2/14
Filed: 1980-03-29
Abstract: Suspension means for overhead electric power lines includes a cable 12 suspended substantially transversely of the line and having a flexible sheath and a clamp 2 having a body 3 with an oblong cross- section longitudinally extending passage 7 therethrough, the top edge 9 of the passage being adapted for support on the cable and being inclined relative to the bottom edge 10; a side opening 13 having a width at least equal to the diameter of the cable being provided in the body leading to the passage; a wedge 4 connected (at 5) to the body and having two relatively inclined top 14 and bottom faces corresponding to the inclined edges of the passage and intended for engagement in the body to clamp the cable therein: means 19 being provided on the body for supporting a line mounting device. <IMAGE>
Patent GB-2048697-A (GB)
Title: Lift-weight balanced toy
IPC: A63H27/10
Filed: 1980-05-02
Abstract: A lift-weight balanced toy 8 for throwing includes an envelope 10 of polyethylene terephthalate filled with helium whose uplift is counterbalanced by one or more ballast members 18, 28 (Figures 3 and 4, not shown) so that the toy will assume a particular orientation at a desired distance from the ground. Each ballast member comprises a spirally-arranged plurality of weights 20 held onto the envelope by pressure-sensitive or touch-and-close fastenings, and is so positioned with respect to the envelope that when one or more weights 20 is removed serially from the outer end of the spiral toward the inner end thereof, the centre of gravity of the member is substantially unchanged, and the orientation of the toy not appreciably disturbed. In one embodiment, one ballast member 18 is in place, and this will always be situated at the bottom of the toy whereas in a second form, two ballast members (28) are provided so that the toy will remain oriented in space in whatever position it is initially placed. <IMAGE>
Patent GB-2076378-A (GB)
Title: Closure for container
IPC: B65D47/08
Filed: 1980-05-09
Abstract: A bottle or like closure has a cap (10), for mounting on the container, which cap has a central discharge spout (18), and a lid (11) moulded in one piece with the cap. The cap and lid are joined by thin web hinges (12). On the lid there is a resilient tongue (24) which in opening and closing the lid slides on an abutment (20) upstanding from the cap, the arrangement being that on opening or closing the lid, the movement of the lid is first resisted and then assisted. <IMAGE>
Patent GB-2053863-A (GB)
Title: Torque limiting drive for winding web rolls
IPC: B65H18/10
Filed: 1980-07-02
Abstract: A web roll winding drive applied to the web spool (20) has a clutch arrangement which comprises two clutches, an over-running (14) clutch and a constant torque clutch (10) whose respective driven members are connected to the spool bearing and whose driving members are connected to a pulley drive means (13a, 13b). The over-running clutch transmits to the bearing an initial torque which is substantially greater than the torque applied by the constant torque clutch after the spool has attained a predetermined winding speed. <IMAGE>
Patent GB-2051542-A (GB)
Title: Combine harvesters
IPC: A01F12/52
Filed: 1980-07-02
Abstract: A combine harvester comprises a threshing mechanism (13), a rotary separating mechanism (19) extending transversely of the machine and having opposed ends extending transversely beyond the opposite ends of the threshing mechanism (13), a cleaning mechanism (7) of a width substantially corresponding to the width of the threshing mechanism (13) and disposed vertically below the threshing mechanism (13) and a central portion of the separating mechanism (19) to receive separated crop material therefrom, rethreshing means (45) associated with the cleaning mechanism (7) and disposed at each side thereof for rethreshing tailings separated in the cleaning mechanism (7), and conveyor means (67) extending between the associated rethresher means (45) and the cleaning mechanism (7) underneath an end portion of the separating mechanism (19). The conveyor means (67) is adapted to recycle rethreshed tailings from the associated rethresher means (45) to the cleaning mechanism (7) and to receive crop material separated in the separating mechanism end portion thereabove and to direct it, together with the rethreshed tailings, to the cleaning mechanism (7).   <IMAGE>
Patent GB-2058459-A (GB)
Title: Acceleration limit switch
IPC: H01H35/14
Filed: 1980-08-01
Abstract: In an acceleration limit switch on motor vehicles for controlling the anti- collision light system in which a permanent magnetic actuating member 7 is deflected and operates a contact switch 29, 30 for the induction coil 15 of a multipole switching relay 32, the actuating member 7 and induction coil 15 are juxtaposed on a ferromagnetic plate 6 which is bent to provide a magnetic circuit about the induction coil 15 in conjunction with an armature 12. <IMAGE>
Patent GB-2061199-A (GB)
Title: Tyre and wheel assemblies
IPC: B60C15/024
Filed: 1980-09-24
Abstract: In a tyre and wheel assembly the wheel rim tyre engagement zones each comprise a tyre bead retaining flange (5), a tyre bead seat (6) and an abutment region (8) which projects radially outwards of the bead seat (6), and the tyre beads each contain a substantially inextensible circumferentially extending bead reinforcement (2), and each have, when considered in radial cross-section in the inflated condition on the wheel rim, an effective size (11) measured in the inward radial direction of the assembly from the centre of the reinforcement (2) such that the tyre bead contacts the bead seat and is prevented from inward movement by the abutment (8) and a smaller effective size (10) measured from the centre of the annular reinforcement (2) in an axial, e.g. axially outward, direction, the smaller effective size (10) being less than the difference in radii between the annular reinforcement (2) and the radial extremity of the abutment (8) such that the tyre bead may, having been rotated so that the smaller effective size (10) extends radially, be passed over the abutment to its seat (6) for tyre fitting. <IMAGE>
Patent GB-2087199-A (GB)
Title: Amplifiers for driving balanced lines
IPC: H04M19/00
Filed: 1980-10-16
Abstract: In a telephone subscriber's line interface unit a circuit which transmits to the subscriber's line includes a differential output amplifier A2,A3 with current feedback A5,R5-R8 to stabilise the output signal current with respect to the input voltage. A second feedback loop is provided which includes a pair of equal value resistors connecting each of the two outputs A,B of the differential amplifier to the summing junction of an amplifier A6 connected as an integrator. This monitors the voltages on the outputs A,B and if they are not dynamically balanced about earth potential produces an output which is fed to non-inverting inputs of the output stages A2,A3 of the differential amplifier so as to offset the voltages at the outputs of the output stages in such senses as to tend to restore the balance. <IMAGE>
Patent GB-2086532-A (GB)
Title: Crankshaft lubrication system
IPC: F02B75/24
Filed: 1980-10-28
Abstract: In order to prevent entrainment of oil mist in fuel in engines of a type wherein the fuel has to pass through the crankcase, a crankshaft 1 has its big end bearings lubricated by oilways 14, 15, 16, 17, 18, 19, 21, 22, 23, 24 and 25 in the crankshaft 1 and in crank pins 2, each big end journal having feed (16,21) and discharge (17,22) passages. The oil may be fed through the bearings in series and is preferably discharged through a relief valve 26 to maintain oil pressure in the system. The ends of the big end bearings are sealed by lip seals 34 or by sealing rings. Oil for the small end bearings may be fed off via oilways 36 in the connecting rods 7 and via a restricting device in a cavity 37. The gudgeon pin 10 may be hollow to feed oil to the piston bosses and the cylinder wall via suitably restricted oilways. <IMAGE>
Patent GB-2061956-A (GB)
Title: Process for the preparation of keratin hydrolysates
IPC: A23J3/34
Filed: 1980-10-29
Abstract: Oligopeptide compositions are obtained by hydrolysis of a keratin material wherein the material is subjected to a sensitising treatment carried out with an electrolyte in an aqueous medium at a concentration of at least 8 mols per litre, or with a polar solvent, or where the keratin material is in the form of keratin with a cuticle, with at least one cuticle-removing agent which is ultrasound or formic acid at a concentration of at least 90% by weight, as cuticle-removing agent.
Patent GB-2071567-A (GB)
Title: Spindle assembly
IPC: B24B45/00
Filed: 1980-11-27
Abstract: To eliminate the usual protruding unit securing a saw blade or cut-off disc 29 to a spindle in a cut-off machine, the spindle assembly, comprising tubular housing 10 has journalled therein an axial sleeve 13 formed with a spigot 19 at one end for an inner clamping disc 20 and fitted with a drive pulley 14 at the other end. An axial draw bar 30 engages threadedly with a boss 26 provided on an outer clamping disc 27 and projecting through the saw blade or disc 29 and into the sleeve 13. Nut 33 on the other end of the draw bar 30 permits the outer disc 27 to be drawn towards the inner disc 20 for clamping the blade or disc 29. <IMAGE>
Patent GB-2068628-A (GB)
Title: Segmented helical scan tape format and scanning apparatus therefor in record and/or replay systems
IPC: G11B27/00
Filed: 1981-01-27
Abstract: In a tape format for video record and/or replay systems, which format facilitates the replay of recognizable pictures at other than recorded speeds, the width of the tape is divided into a plurality of longitudinal segments (X,Y) each carrying tracks of information relating to individual vertical segments (X% Y%) of a television raster, with adjacent scan points along the tracks in each tape segment being related to the same raster location (dotted). A plurality of transducers equal in number to at least the desired quantity of vertical raster segments, is equally spaced about the periphery of the rotatable scanner in the record and/or replay system, with each transducer having a unique location along the rotational axis of the scanner. <IMAGE>
Patent GB-2071885-A (GB)
Title: Billing recorder with non-volatile solid state memory
IPC: G06Q30/00
Filed: 1981-02-04
Abstract: An electricity billing recorder has a controller for processing pulses from an electric meter. The resulting data is temporarily stored in random access memory as data words representative of energy consumed in predetermined time ("demand") intervals. The accumulated measurement ("event") data and time data are transferred to a non-volatile, solid state memory module after relatively long collection periods comprising a number of demand intervals. The solid state memory is energized only during data transfers. The entire memory module is replaceable for processing at a central location. During replacement the controller writes a special Removal Record in predetermined locations on the memory module being removed, and prepares a special Insertion Record for the new module. The cumulative counts recorded on these special records in addition to the normal records establish reliable data continuity. After any collection period in which a power outage has occurred, the controller transfers the current data to a secondary portion of RAM. Subsequent demand intervals, until power is restored and including any memory thermal recovery periods, are assigned chronological index numbers and event data is stored only for those demand intervals in which power consumption actually occurs. After return to normal operation, the data in secondary RAM is transferred to the solid state memory and the compact format data in primary RAM is reconstructed into normal storage format with all intervals during which no event data was stored being zero filled. As this data is transferred to secondary RAM for storage in the solid state memory, the remaining data in primary RAM is re-located to provide as much space as possible for data storage should another power outage occur before conversion of all the compact format data.
Patent GB-2072553-A (GB)
Title: Additive containers for metal casting
IPC: B22D27/20
Filed: 1981-02-10
Abstract: A sealed container (1), for providing particulate, metal-casting flux (2) in a vessel e.g. ingot mould in which a metal e.g. steel is being cast, has walls comprising an inner layer of plastics material heat-sealed to seal the container (1) and, secured to the inner layer, an outer layer of aluminium foil. A number of the containers (1) may be joined together as a length. The containers (1) may be suspended down the side of a mould and/or put on the base of the mould. <IMAGE>
Patent GB-2070401-A (GB)
Title: Apparatus for Dispensing Forage or the Like
IPC: A01F29/00
Filed: 1981-02-20
Abstract: Trailer apparatus for dispensing forage or the like comprises a part- circular container 3, in which a plunger 27 is adapted to travel, to push forage or other material towards a rotary disc 7. The disc 7 is preferably provided with cutting blades, and also provides a well-defined radial fan action, thereby to dispense forage via a discharge chute. The plunger 27 is driven by a lever mechanism comprising two levers 28 and 29, which are controlled by an hydraulic ram 31. <IMAGE>
Patent GB-2074285-A (GB)
Title: Metal Transmission Belt
IPC: F16G5/18
Filed: 1981-03-25
Abstract: A flexible power transmission means comprises an assembly of a pair of spaced, generally parallel chains (10, 12), each constructed of a plurality of sets of interleaved links (16, 18, 20, 22). Each set is joined to its next adjacent set by a pin (24), each pin serving both chains. Generally trapezoidal-shaped load blocks 14 are located between the chains and have cut-outs (30, 32) in the sides locating the chains. The load blocks (14) are generally contoured at their edges (26, 28) to fit into the V of a pulley and are disposed between the chains. The load is carried by the chains and its pins. The load blocks (14) are iongitudinally positioned with respect to the chains by the chains' pins. <IMAGE>
Patent GB-2074384-A (GB)
Title: Electrical snap switches
IPC: H01H3/00
Filed: 1981-04-07
Abstract: An electrical snap switch comprises a pivotally mounted contact member 112, a pivotally mounted lever 114 and a leaf spring 113 acting between the lever 114 and the contact member 112, the switch being actuated in two stages in the first of which the lever 114 undergoes pivotal movement by an operating member 110 whilst the contact member 112 remains stationary until the lever 114 moves with a snap action which then causes the contact member 112 to move with a snap action during the second of the two stages. This two-stage actuation avoids dithering of the contact member 112 at or near its snap point. <IMAGE>
Patent GB-2080447-A (GB)
Title: Diaphragm spring clutch
IPC: F16D23/14
Filed: 1981-06-18
Abstract: The rotating release bearing race ring (5) has a flange (8) on which the ends of the diaphragm spring tongues (7) bear from the one side and retaining elements (9) defined by or connected with the spring tongues (7) bear on the flange (8) from the other side. By this means a space-saving, captive connection of the release bearing with the diaphragm spring is produced, in which a self-centring effect can be provided <IMAGE>
Patent GB-2083559-A (GB)
Title: Self Bleeding Hydraulic System
IPC: F15B11/028
Filed: 1981-08-28
Abstract: Hydraulic apparatus is described for driving a remote tool, for instance a reciprocatory torque wrench, connectable via an hydraulic fluid reservoir 1 to a pump 73 by egress channel 7 and return channel 8, connected by diverter pipe 11 and having an adjustable pressure relief valve 12. Pneumatic pump 73 enables self-bleeding by setting valve 12 for recirculation at minimal nominal torque setting. Indicator disks 151, 152 are juxtaposed with pressure relief valve control 13, 14 and are calibrated for converting torque, joules, to working fluid pressure, atmospheres, in correlation with given work piece parameters and figures are exemplified relative operative wrench arm leverage and connector dimensions. Disk 152 is windowed for masked reading of disk 151 and the pneumo self bleeding apparatus is housed in a lockable cabinet wherein control valve 13, 14 setting shown by the disks is observable through window 15. <IMAGE>
Patent GB-2089093-A (GB)
Title: Magnetic disc memory apparatus
IPC: G11B5/55
Filed: 1979-04-20
Abstract: A magnetic head is driven across a rigid magnetic disc with high track density by a stepper motor in an open-loop fashion or without servomechanism control. The memory apparatus includes: band structure including a spring bias for coupling stepper motor drive to apparatus supporting magnetic head above and/or below the spinning disc and for temperature compensating for disc/apparatus expansion and contraction; manually operable control for zeroing the magnetic heads, moving and locking them in the disc's landing zone as, for example, while in transit, and providing a travel limit to head movement when the memory apparatus is operating; keying apparatus for preventing erroneous insertion and mis-alignment of and damage to an optical transducer relative to an optical mask arranged to spin with the disc structure; shim apparatus for precisely positioning the magnetic heads in the spin axis direction; viscously-coupled inertia apparatus for damping the stepping motor's step-rotary motion; a device for employing spinning motion associated with the disc for cooling purposes; and other structure. <IMAGE>
Patent GB-2109566-A (GB)
Title: Conveying apparatus
Inventor: HOLT JOHN BRIGGS
IPC: G01G11/00
Filed: 1981-11-13
Abstract: A conveying apparatus comprises a plurality of compartments 1 each adapted to support an object to be weighed and means for conveying the compartments past a weighing location at which each compartment will rest on the platform 17 of a weighing means to register the weight of the compartment and its contents. Each compartment is coupled to the conveying means by a linkage 5, 5' having two pivot axes 7, 4' lying in one substantially horizontal plane and connecting the linkage respectively to the compartment and to the conveyor. <IMAGE>