baber/WOPTO huggingface dataset:
Patent GB-1282572-A (GB)
Title: Apparatus for processing echo sounder signals
Inventor: HEARN PETER JOHN
IPC: G01S15/96
Filed: 1968-10-29
Abstract: 1282572 Fishing sonar WHITE FISH AUTHORITY 27 Jan 1970 [29 Oct 1968] 51276/68 Heading H4D [Also in Division G4] For determining the probable rate of catch of fish by a fishing vessel, the number of echoes received in each sounding by an echo sounder from fish in a predetermined depth band is normalized (to compensate for the increasing width of the sounding beam with depth) to obtain a respective quantity corresponding to the number of echoes which would be received if the same fish were a standard depth below the echo sounder, respective estimates of the number of fish caught are derived from these quantities in accordance with a predetermined relationship between the estimate and the said quantity, the estimates are summed over a given time interval, the sum is indicated as an estimated catch rate, and provision is made for up-dating the predetermined relationship. In the embodiment shown on echo sounder receiver channel is provided with time-variedgain (to compensate for sound attenuation with depth) and optional A.G.C. The sea-bed echo and fish echoes are then distinguished by means of amplitude gates 18, 42 and an echo slope gate 44. Gate 25 is opened by a transmitted sound pulse and closed by the resulting sea-bed echo to feed clock pulses to counter 33 giving a digital depth measurement for display at 35 and for normalization purposes. A blanking pulse generator 30 prevents premature closure of the gate 25 by a fish echo. Shift register 49 is arranged to count those fish echoes from a 4 feet high band adjacent the sea-bed (when bottomtrawling), and this count is transferred to a register 54. Normalization is effected at 60, where register 54 count is divided by the square of the depth. In a given fishing operation, the normalized counts are summed on accumulator 76 then divided into the actual catch value of a previous fishing operation to obtain at 82 a factor RA. An assumed correction factor RF is multiplied at 66 by each normalized count to give estimated catch counts which are summed at 71 over two-minute periods to give estimated catch rate values for display at 73 and analogue recording at 75. The estimated catch counts are also summed at 68 over the whole fishing operation to give a total catch display at 70. For the next fishing operation the correction factor RF is updated by allotting the factor RA a weight α at 83, multiplying the old RF factor by 1-α, and summing at 84 product (1-α) x RF with the weighted factor αRA to give a new RF value. In a modification for midwater fishing, shift register 49 and depth counter 33 are not used and instead a manually-controlled time gate feeds fish echoes from a selected depth band to register 54.
Patent GB-1204006-A (GB)
Title: Improvements in and relating to thin film capacitors
Inventor: TIBBETTS DEREK ROSS
IPC: H01G4/30
Filed: 1967-11-10
Abstract: 1,204,006. Thin film capacitors. ULTRA ELECTRONICS Ltd. 10 Nov., 1967, No. 51310/67. Heading H1M. A non-polar thin film capacitor comprises a first electrode vacuum deposited on a non- conducting substrate and separated from a pair of counter-electrodes by a dielectric layer. As shown, a layer 3 of titanium having a resistivity of less than 10 ohms/square is evaporated on to glass substrate 5 and a layer consisting of a mixture of tantalum and aluminium is sputtered on to the titanium layer. The tantalumaluminium layer is anodized completely to form dielectric layer 4 and a continuous layer of aluminium or gold deposited on top. By photoetching the continuous layer is divided to form counter-electrodes 1 2 having an interdigitated structure with the electrodes less than 0À01 inch apart. The base electrode may be of other anodizable metal or alloy, e.g. tantalum, Ta-Al alloys, and may be sufficiently thick to be partially anodized to form the dielectric.
Patent GB-1181504-A (GB)
Title: Improvements in or relating to a Washing and Spin-Drying Machine.
IPC: D06F37/20
Filed: 1966-11-17
Abstract: 1,181,504. Snap-action switches. CROUZET. 17 Nov., 1966 [26 Nov., 1965], No. 51507/66. Heading H1N. [Also in Division D1] The rotary drum 1 of a washing machine is mounted on a rocking support 2 to which is attached a push-rod 6 which, in the event of excessive oscillation of the drum, moves quickacting control means 7 from a first state in which the drum drive motor 5 is activated to a second state in which an auxiliary motor 8 is activated to drive a cam C which, after a predetermined time, returns the control means to the first state to reactivate the drum motor. Support 2 which is pivoted at 2a and is suspended by spring 3, carries the spring-biased rod 6. On excessive oscillation of support 2, rod 6 engages the bi-stable electric changeover switch 7. Motor 8 rotates cam C through reduction gear 9 until a boss c thereon returns the lever 7b of switch 7 to its initial position to restart motor 5 and stop motor 8. The cam C comprises a rim 13 movable through an angle with respect to a hub 12 having a finger 12a engaging a recess in rim 13 and engaged by a spring 15 to bias the rim 13 clockwise with respect to the hub as shown. When boss c engages the actuator 7<SP>1</SP>b for lever 7b, the spring is compressed until the finger 12a engages the end of the recess when the lever 7<SP>1</SP>b is actuated by boss c which is then moved rapidly beyond the actuator by the action of the spring on rim 13.
Patent GB-515160-A (GB)
Abstract: 515,160. Measuring sounds. GUELKE, R. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 25, 1938, No. 15656. [Class 118 (ii)] In a sound measuring apparatus the output from a microphone passes to a phase-displacing network which feeds with 90 degrees phase-shift, two output circuits each provided with means for determining the peak/R.M.S or peak/average ratio of the waveform in the circuit. The higher ratio is used, with the aid of tables, to correct the reading of the sound level indicator calibrated on pure tones when a sound of complex waveform is being received. In the embodiment described the output from a microphone is fed through an amplifier and a weighting network to the phase-shifting network, Fig. 1. The ,voltages derived from the higher frequencies are developed across choke h1, the lower frequencies appearing across condenser c1, a fraction of the voltages being applied directly to transformer T6 by the aid of resistances r1, r2, r3 and transformer T1. In order to obtain the 90 degrees phase-shift the voltage across choke h1 is applied through resistance r1 to choke h2 in series with resistance r7 and condenser c3 in series with resistance r6, thus causing the voltages across resistances r7, r6 to lag and lead the applied voltages by nearly 90 degrees. These voltages are fed to transformers T2, T3 the secondaries of which are connected in opposition. The voltage across condenser c1 is similarly treated and this 90 degrees phase-shifted voltage is applied with the above voltage to transformer T5. Rectifiers R1 ... R4 in the secondary circuits of transformers T5, T6 feed peak voltmeters Pa, Pb, meters Ra, Rb indicating either R.M.S. or average values. The sound level as given by the average of the readings of meters Ra, Rb is corrected by the addition of a value derived from tables giving the values for various peak/R.M.S. ratios. Alternatively, coarse and fine attenuators may be provided, which are adjusted until the R.M.S. meters read a definite value, the position of the attenuators 'thus giving the uncorrected value while the peak meter gives directly the peak/R.M.S. ratio. In a modification, Fig. 2, the output from one of the transformers T5, T6 feeds variable-mu valves V1, V2 through rectifiers R5 ... R8 a condenser c4 and resistance r8 being arranged so that the voltages supplied to valve V1 and V2 are proportional to peak and R.M.S. values respectively. The voltage developed across resistance r11 is used to control the gain of the amplifier, and since there will be two such voltages, the larger is arranged to be effective so that the output meter gives a more correct indication.
Patent GB-1474042-A (GB)
Title: Method and apparatus for water blocking cables
IPC: H01B/
Filed: 1975-11-18
Abstract: 1474042 Water-proofing cables STANDARD TELEPHONES & CABLES Ltd 18 Nov 1975 [28 Nov 1974] 51572/74 Heading D1L The interstitial spaces between pairs of insulated conductors of a cable core are filled with waterproofing compound whilst the pairs of conductors are being brought together in a die by metering the compound into the centre of the die 4 from a coaxial nozzle 5 upstream thereof. The outer surface of the core is then smoothed by a rubber cone 9 on the downstream side thereof. The interstitial spaces of a cable subsequently made up from the cores are filled as the cores pass through a second die by compound exuding therefrom.
Patent GB-1240575-A (GB)
Title: Improved inserts
IPC: F16B37/12
Filed: 1969-10-22
Abstract: 1,240,575. Making threaded inserts. PENN ENG. & MFG. CORP. 22 Oct., 1969 [10 April, 1968], No. 51700/69. Heading B3A. [Also in Division F2]  An insert 10 for insertion into a hole in plastics material (see Division F2) is made by engaging the corners of a hexagonal bar with a taper cutting tool to taper the bar from one end to the other, cutting grooves 30, 32, 34, 36 in the bar with a forming tool to form flanges 20, 22, 24 and 26, a pilot portion 38 and an undersurface 42 of a head portion 14 and partially cutting the bar behind what will be the head portion 14. A bore may then be drilled in the bar and a thread 12 formed before the insert is cut from the rest of the bar.
Patent GB-1212843-A (GB)
Title: Filamentous mats
IPC: D04H3/02
Filed: 1967-11-15
Abstract: 1,212,843. Winding filamentous mats. AMERICAN AIR FILTER CO. Inc. 15 Nov., 1967 [18 Nov., 1966], No. 52046/67. Heading B8G. [Also in Division D1] An expanded filamentous mat is made by collecting filaments on a collector, e.g. a rotating drum; applying first and second binders to first and second portions respectively of the mat, the viscosity of one of the binders being greater than that of the other binder at a selected temperature; releasing the filaments from the collector, e.g. by slitting, so as to form a planar mat; stretching the mat in a direction transverse to the lay of the filaments so that some of the filaments curl and expand the thickness of the mat; heating the expanded mat to the selected temperature to soften the binder in one portion of the mat; reorientating filaments of the portion where the binder is softened; and hardening the softened binder. The first and second mat portions may be formed by collecting the filaments at selected angles of lay which may be the same portions or different. The angle of lay may be zero in some portions of the mat. The different lay angles may be formed by varying the traverse rate of the yarn supplying device. The mat may be compressed whilst the binder is softened. The binder may be a solution urea-formaldehyde resin. The filaments may be of glass.
Patent GB-1248074-A (GB)
Title: Dynamo-electric machines
Inventor: KOIZUMI HISAO
IPC: H02K3/22
Filed: 1968-11-04
Abstract: 1,248,074. Liquid cooled dynamo-electric machine rotors. TOKYO SHIBAURA ELECTRIC CO. Ltd. 4 Nov., 1968, No. 52123/68. Heading H2A. In a dynamo-electric machine comprising a rotor 1 having in a plurality of axial winding slots 20 radially stalked hollow winding conductors 27 each having a pair of longitudinal liquid cooling passages 28, at one end of the rotor mounted on the shaft 1b and disposed within the winding end turns 22 is a cooling liquid, supply manifold 17 having on its outer surface a plurality of nozzles 18 spaced from but positioned opposite a respective one of a plurality of supply tubes 26 inserted in the conductors which conductors between the tubes and passages 28 provide pressure reducing chambers 30 and small openings 29, 31; at the other end of winding 6 there are inserted into radial openings in the outer end turns cooling liquid discharge tubes, e.g. 32c, which communicate with axial grooves 35 of a retaining ring 16 which grooves discharge the liquid into a stationary liquid collector 15, the discharge tubes having pressure reducing chambers 36 and openings 33. The collector 15, of scroll shape, is sealed from the ring 16 by a labyrinth (39), Fig. 5, and returns the heated liquid to a cooler 10 from which a pump 11 recirculates it via a conduit 13. A stationary sealed cylindrical enclosure 5 surrounds the rotor 1 and has shaft seals 5a.
Patent GB-1160400-A (GB)
Title: Linear Motor with Stationary Field Structure.
IPC: H02K41/025
Filed: 1967-11-16
Abstract: 1,160,400. Linear motors. ETABS. MERLIN & GERIN SOC. ANON. 16 Nov., 1967 [24 Nov. 1966], No. 52125/67. Heading H2A. In a travelling-field type linear motor, the cores 12, 12<SP>1</SP> . . . 18, 18<SP>1</SP> on either side of the moving armature 10 are normally closed together to conserve current, but separate momentarily to allow the passage of the armature. This separation is produced by the engagement of rollers 24, 24<SP>1</SP> attached to the cores with a suitably profiled spacer 26 carried by the armature. The cores may be hinged or arranged for parallel movement. One or both sets of cores may move and one or both may be wound. Other methods of separating the cores may be employed.
Patent GB-1393336-A (GB)
Title: Purification of beta-napthol by extractive crystallization
IPC: C07C37/84
Filed: 1973-11-09
Abstract: 1393336 Purification of #-naphthol AMERICAN CYANAMID CO 9 Nov 1973 [21 Dec 1972] 52254/73 Heading C2C A method of purifying #-naphthol to separate therefrom α-naphthol, present as an impurity therein, comprises (1) forming a mixture of the #-naphthol in molten form, and water at a temperature above 90 C., (2) cooling the mixture, with stirring, to effect crystallization of the #-naphthol and extraction of α-naphthol into the water, and (3) filtering off the #-naphthol crystals.
Patent GB-1530360-A (GB)
Title: Hair treatment apparatus
IPC: A45D2/36
Filed: 1976-12-16
Abstract: Arranged between a cylindrical handle (1) and a likewise cylindrical bar (2) is a rotationally symmetrical intermediate piece (3). In the bar (2) there is an electric heating element (4) at whose one end a heating plate (6) is arranged, against which a wick (7) is pressed, which protrudes from a water container (8). The latter is screwed into the bar (2) by means of a thread (9). Provided in the bar (2) are a plurality of holes (10) through which air and/or steam can pass, as a result of which the hair surrounding the bar (2) is moistened or heated. The hair (11) is pressed against the bar (2) by means of a clamp (12) resting on the intermediate piece (3). Arranged in the intermediate piece (3) is a fan wheel (14) which is driven by a motor (15) which is located in the handle (1) and can be connected via a cable (16) to a source of electricity. The air supply for the fan wheel (14) takes place via ventilation apertures (17) in the intermediate piece (3), while the air discharge is carried out via ventilation apertures (18) in the intermediate piece (3) and via the air duct between the heating element (4) and the bar (2). By pressing the wick (7) against the heating plate (6), the water from the wick (7) is evaporated. The hair is moistened by the steam emerging through the holes (10). On completion of the steam generation, the hair can be dried by further heating of the heating element (4). To accelerate this drying process, the fan wheel (14) is switched on. <IMAGE>
Patent GB-1098781-A (GB)
Title: Motion picture projector
IPC: G03B1/42
Filed: 1964-12-30
Abstract: 1,098,781. Cine projectors; film cartridges. BELL & HOWELL CO. Dec. 30, 1964 [Jan.17, 1964] No. 52783/64. Heading G2E. In a cine projector, film is passed to selfthreading mechanism 25 either from a large capacity reel on driven spindle 94 mounted on pivotable arm 31, or from a small capacity cartridge 30 carrying film on a driven core having a spur gear 37 meshing with a driving gear 38. The cartridge 30 is formed in two separable halves (59, 60) with separable hook lug hinges on each half, Fig. 7 (not shown), and has a hollow boss (33) containing the gear (37) which extends through aperture (76) to engage gear (38). Core (68) has a reverse bend snubber groove and pin for film attachment, and the interior of the cartridge has a concentric snail-form film guide surface directing film to an exit above mechanism 25. The outermost coil of the film is engaged by sprocket 79, Fig. 1, which partly enters the cartridge for the purpose and meshes with a rubber toothed stripper roller 82 which frictionally guides the film end towards track 81. A slot (32), Fig. 7, guides the cartridge into its operative position in which it is held by spring-loaded pressure plate (45) and a latch detent on the cartridge wall. For withdrawal, the plate (45) is released by a handle. Cartridge (30) has spacer and contact ribs (43) to engage the slot wall and prevent binding. Self-threading mechanism 25 includes loop defining members 27, 28 and a film driving sprocket 29 which engages sprocket 79 during threading. After threading, loop former 28 is pivoted upwards and stop 90 also raises the arm 89 against the spring 91 to disengage sprocket 79 from sprocket 29 for idling thereafter. Again after threading, gear 38 and the core may idle while sprocket 29 is driven. When an external film reel is used on arm 31, the film end is manually led into slot (32) to enter threading track 81 under roller 82. Large size cartridges are also disclosed.
Patent GB-1376453-A (GB)
Title: Aryl acetylene ethers
IPC: A01N37/42
Filed: 1971-11-16
Abstract: 1376453 Aryl acetylene ethers STAUFFER CHEMICAL CO 16 Nov 1971 [16 Nov 1970 (2)] 53121/71 Heading C2C The invention comprises compounds of formula wherein R represents alkynyl; R 1  represents alkynoxy, thioalkynoxy, haloalkenoxy, or carboalkynoxy; and X represents hydrogen, alkyl, alkenyl, alkynyl, alkoxy, thioalkoxy, alkynoxy, halogen, cyano, carboalkoxy, carboalkynoxy, formyl or carbamyl and represents one or more substituents which may be the same or different at one or more positions of the ring. These compounds may be prepared by treating a substituted phenol or polyhydroxy benzene with a propargyl halide in air inert solvent such as acetone, using approximately a mole equivalent of a base as an acid acceptor, e.g. K 2 CO 3 . The invention also comprises a herbicidal or insecticidal composition which contains as an active ingredient a compound according to the invention together with an inert carrier or diluent.
Patent GB-1375708-A (GB)
IPC: A61H15/00
Filed: 1971-11-16
Abstract: 1375708 Finger massaging device T KOBAYASHI 16 Nov 1971 53158/71 Heading A5R A machine for massaging the fingers comprises elastic tubes 8 to 12 for locating the fingers housed in longitudinal depressions 7 in the inner surface of a stationary sleeve, and movable depressions 21 on the outer surface of an inner member 18 engaging the opposite sides of the tubes which can be compressed and allowed to expand by the reciprocating movement of the movable depressions 21 towards the stationary depression 7. A cam 13 is eccentrically mounted upon a shaft 17 and bearings 20 are positioned between the periphery of the cam and a sleeve 19 defining a central bore in the member 18, such that as the shaft rotates, pressure is applied to, and released from the respective elastic tubes 8 to 12 by the member 18. An electric motor 16 connected to a capacitor 24 and switch 23 drives the shaft which may rotate at 180 cycles per minute.
Patent GB-1489908-A (GB)
Title: Determination of interval velocity in the presence of dip
IPC: G01V1/30
Filed: 1974-12-11
Abstract: 1489908 Seismic data processing MOBIL OIL CORP 11 Dec 1974 53556/74 Heading G1G Seismic interval velocities for a subsurface region having dipping interfaces are computed automatically from common depth point (CDP) traces obtained using at least three seismic profile lines crossing in a common surface point. In the embodiment described several profile lines intersect in a grid of surface points with three lines passing through each point. The main data processing steps are as follows and relate to one such point, the processing being repeated for the other points:- (a) From the CDP data for profile lines A, B, C through the point the travel time T, apparent velocity V, and amplitude A of each trace event (reflection) are determined and stored, (b) for each profile line the average time #T,  average dip and average apparent velocity V of any interface are taken over the CDP's defining that interface, (c) data not satisfying validity criteria for amplitude and continuity (i.e. presence on all three lines A, B, C) are rejected, (d) for those data satisfying the criteria the average time TCR for any given interface is taken over the three lines, (e) values of the true dip # CR and true strike CR for each interface are computed, knowing # and the actual azimuth of the profile lines with respect to magnetic north, (f) for each interface and each profile line the average apparent velocity V is corrected in dependence on the true dip and strike relative to the line to give an RMS velocity value VRMS, (g) for each interface the consistency of the three values of V RMS  is checked, and if found consistent those values are averaged, (h) the averages of VRMS are plotted against their corresponding TCR values to form a curve which is then subjected to a smoothing process, (i) true interval velocity V i  between interfaces is computed from the smoothed curve by a known iteration process see Specification 1317765 in Division H3-5, which involves fitting an arbitrarily dipping Snell's Law layered model to the curve data. By integrating V i  with respect to time, average velocity may be computed. A plot of dip, strike, V, V i  and VRMS against a common travel time scale may be produced, with strike represented by the orientation of vectors and dip by the displacement of the vectors from the time axis. Details of a Fortran routine for the data processing are given.
Patent GB-1376436-A (GB)
Title: Method and apparatus for separating coarse and fine particles of  a particulate material
IPC: B07B7/083
Filed: 1971-11-19
Abstract: 1376436 Pneumatic classifier SATO SEISAKU-SYO KK 19 Nov 1971 53965/71 Headings B2H and B2P  Apparatus for separating coarse and fine particles of a particulate mixture comprises a cylindrical housing 1, a rotatable disc 4 provided with radial vanes 5 located near the bottom of the. housing, means 2 for supplying the particulate material to the upper surface of the disc 4, means for blowing gas into the housing through an opening 6 below the disc, and at least one set of rotatable vanes 8 mounted in the housing above the disc 4. The disc 4 disperses the material fed to its upper surface, the material then being carried up to the vanes 8 on a spiral current of air. Separation then occurs, the fine particles passing out of the top of the housing through an opening 9 whilst the coarse particles fall down and are discharged through an outlet 22. In addition to their dispersing function, the disc 4 and vanes 5 also perform a separating function by virtue of the centrifugal effect. The edges of the vanes 5 may be bent out of alignment with the remainder of the vane, and may extend downwardly to form a pendant part 52. In operation, the peripheral speed of the vanes 5 is within 30% of the blowing rate of the air at the inlet 60. After leaving the housing 1, the fine particles may pass to a cyclone collector (C). A back filter (B) may also be provided, the arrangement being such that the blast from a fan (F) providing the air supply to the housing 1 may be completely or partially diverted to be purified and exhausted outwardly.