baber/WOPTO huggingface dataset:
Patent GB-1534735-A (GB)
Title: Thin film magnetoresistive sensor
IPC: G11B5/39
Filed: 1976-10-06
Abstract: 1534735 Magnetoresistive heads INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1976 [18 Nov 1975] 41550/76 Heading G5R A magnetoresistive read head comprises a magnetoresistive thin film layer 50 deposited upon a smooth substrate 52, a thin film layer 66 of nonmagnetic electrically conductive material deposited directly on layer 50, and a thin film layer 56 of a magnetic electrically conductive material deposited directly on layer 66 to produce a bias field in the MR layer 50 in operation, the layer 66 having a higher electrical resistivity than layer 56. MR layer 50 may be of permalloy Ni-Fe between 200 and 600 Angstroms thick deposited by evaporation at a substrate temperature of about 250‹ C. on to dielectric layer 52, e.g. glass. Shunt layer 66 may be of 100 to 200 Angstrom thick titanium deposited on to layer 50 at room temperature. Bias layer 56 may be 140 to 425 Angstroms thick of magnetically soft or hard material such as Ni-Fe, e.g. permalloy, or Co-Cr alloy. The sandwich 50, 66, 56 is etched to a U-shape with electrical leads 68, 70 on the legs thereof, or the sandwich may be rectangular with the leads 68, 70 stepping over it. When layers 50 and 56 are of the same material, layer 56 should be thinner than layer 50, e.g. in the ratio 0À707 to 1, so that current through layer 50 produces a magnetic field saturating layer 56, whereby layer 56, the field from which biases the MR layer 50, does not exhibit the magnetoresistive effect.
Patent GB-944831-A (GB)
Title: Integrator for a calorimeter
IPC: G01K17/14
Filed: 1961-11-21
Abstract: 944,831. Measuring heat quantities; integrating-apparatus. AVEDKO N.V. Nov.21, 1961 LNov.21,1960],No.41689/61. Headings G1D and G1J. In measuring the heat conveyed by a flowing medium, a shaft 26, carrying a disc 25, is connected to a rotating vane type flowmeter so as to be driven by the medium at a speed proportional to the flow, and an arm 1 which is angularly positioned by one or more thermometers, not shown, slides a roller 6 along a shaft 9, diametrical of the disc 25, so that the roller 6 and hence shaft 9 coupled at 27 to a totaliser 28, are driven by disc 25 at a speed corresponding to both the rate of flow of the medium and its temperature, or difference in temperature between the inlet and outlet of a unit. To enable the arm 1 to slide roller 6 more easily across disc 25, the latter has a series of regularly spaced projections 39 engaged by discs 40 at the two ends of shaft 9 so that the shaft and roller 6 are regularly lifted away from disc 25, as it rotates, the shaft 9 being mounted in spring pressed bearings in brackets 10 to allow this.
Patent GB-1359472-A (GB)
Title: Photographic recording and reproduction of information
IPC: G03C1/685
Filed: 1970-09-01
Abstract: 1359472 Pyran derivatives AGFA-GEVAERT 2 Aug 1971 [1 Sept 1970] 41749/70 Heading C2C [Also in Division G2] 3 - Methyl - spiro - di - betanaphthopyran is prepared by refluxing 2 - hydroxy - 1 - naphthaldehyde and methyl ethyl ketone in a 2 : 1 molar ratio in acidic ethanol to produce the pyrilium salt. The spiropyran is produced when the solution is made alkaline. 1,3,3-Trimethylindolinospirobenzopyran is prepared by refluxing equimolar quantities of salicaldehyde and 1,3,3-trimethyl-2-methyleneindolenine in ethanol.
Patent GB-1071900-A (GB)
Title: System for securing a seismic vibrator to a vehicle
IPC: G01V1/09
Filed: 1965-10-01
Abstract: 1,071,900. Hydraulic jacks. COMPAGNIE GENERALE DE GEOPHYSIQUE and INSTITUT FRANCAIS DU PETROLE DES CARBURANTS & LUBRIFIANTS. Oct. 1, 1965 [Oct. 2, 1964], No. 41844/65. Heading B8J. [Also in Division H4] To prevent sideways movement of a vehiclemounted seismic vibrator when on a sloping ground surface, the vibrator is coupled to the vehicle by hydraulic jacks controlled by a servo system such that the resultant of the forces comprising the weight of the vibrator, the reaction of the ground on the vibrator and the forces exerted on the vibrator by the jacks is perpendicular to the plane of contact of the vibrator with the ground. In the Fig. 2 embodiment the vibrator is lowered into contact with the ground, and part of the vehicle weight is transferred to the vibrator, by two jacks 9, 10. A pair of gauges (32, 33) connected in a bridge circuit (Fig. 4, not shown) measure lateral forces between the vibrator and the ground and actuate a servo system which adjusts the individual hydraulic pressures applied to the pistons of jacks 9, 10 so as to reduce the lateral forces. The gauges and bridge circuit may be adapted to measure static lateral forces, or the dynamic lateral forces arising when the vibrator is operating. The total force exerted by the jacks 9, 10 may be adjusted also. In an alternative embodiment (Figs. 5 and 6, not shown) the vibrator is mounted on the vehicle by means of two pairs of jacks (64, 67 and 65, 66) to enable the vibrator to be coupled to a ground surface sloping in the direction of the longitudinal axis of the vehicle, the two jacks (64, 67) being disposed on one side of said axis and exerting equal forces, and the two jacks (65, 66) being disposed on the other side of the axis and exerting equal forces. Details of the servo system (Fig. 4) are given.
Patent GB-917579-A (GB)
Title: Improvements in or relating to apparatus for effecting random selection of indicia
IPC: G07C15/00
Filed: 1961-11-23
Abstract: 917,579. Chance apparatus. WAH KWOK TONG, [trading as WONG HAU PLASTIC WORKS]. Nov. 23, 1961, No. 41987/61. Class 132 (2). A device for mixing and ejecting tokens one at a time in random order, comprises a chamber defined by members 12, 14 provided with interfitting flanges 16, 15 respectively, the flanges being formed with registering gaps to provide an outlet 17 in the assembled device. Tokens are fed into the chamber through an inlet 13. A flanged, disc-like member 22 is housed within the chamber, and comprises an open portion 27, a closed portion 26, and a channel 29, the latter being such that when the device is assembled, it forces an open-ended duct of width equal to the diameter of the tokens. In use, the member 22 is rotated by means of a handle 34 mounted on the spindle 23, and as it moves in a clockwise direction from the position illustrated in Fig. 2, tokens from the bottom of the chamber are scooped into the duct 29. As the member 22 rotates, its flange 35 closes the outlet 17 of the chamber, until the end 32 of the duet 29 registers therewith, and when this occurs a single token is fed from the duct via the outlet 17 into a receptacle 18, 19.
Patent GB-906331-A (GB)
Title: Appetite-reducing compositions comprising phenylamino propane derivatives
IPC: A61K31/135
Filed: 1958-10-30
Abstract: 1 - (p - chlorophenyl)-2-methyl-2-amino-propane and the corresponding 1-(p-bromophenyl) compound may be prepared by the Hofmann reaction from 1,1-dimethyl-2-(p-chloro(or bromo)-phenyl) - propionamide. Their acid addition salts may be prepared by conventional methods, e.g. addition of an acid to the free base or by addition of the selected acid to a neutralized solvent solution of the reaction product of the Hofmann reaction.ALSO:Orally administrable compositions in unit dosage form having an appetite-reducing effect comprise a carrier and 1-(p-chlorophenyl)-2-methyl-2-aminopropane, the corresponding p-bromo derivative and non-toxic acid addition salts thereof with organic and inorganic acids and with sulphonic acid cation exchange resins.  Optional additional active ingredients which may also be present include antacids, e.g. aluminium hydroxide gel, calcium carbonate, magnesium oxide, magnesium trisilicate, analgesics, e.g. acetyl salicylic acid, phenacetin, propoxyphen, sedative barbiturates, e.g. phenobarbitol, narcotics, e.g. codeine, local anaesthetics effective in the gastrointestinal tract, e.g. procaine hydrochloride, novocaine and benzocaine and duiretics, e.g. chlorthiazide and hydrochlorthiazide.  The compositions may be in conventional solid or liquid forms, e.g. a tablet, powder, capsule, solution, emulsion suspension, laminated and enterically coated tablets which may contain 15 to 50 mg. of the active ingredient per unit dose.
Patent GB-1513449-A (GB)
Title: Method and apparatus for comminuting marine algae and the resulting product
IPC: C12P1/00
Filed: 1975-10-14
Abstract: 1513449 Treating seaweed R HERVE and D ROULLIER 14 Oct 1975 [18 Oct 1974] 42101/75 Heading A1X [Also in Division B2] Seaweed, particularly of the pheophyceae and chlorophyceae classes, is comminuted at below -20‹C to produce a wet paste-mix with a mean particle size below 100 micrometres. The seaweed is freshly cut and frozen and fed by a hopper 1 into a comminutor 2 which has knives or blades 6 on a shaft 5 cooperable with a bar or blade carrier 7. Shredded material is fed by a belt 10 to a comminutor 3 which comprises opposed relatively rotatable toothed discs, viz a stator 13 and rotor 14. Ground material is delivered by a belt 35 to a series pair of three-roller mills 30, 31. Coolant viz liquid nitrogen is injected via ports 19, 20 to the comminutors 2, 3, in response to control signals from sensors 26, 27 to valves 24, 25. The liquid nitrogen is stored in a vessel 21. Cooling may alternatively be effected by pipes in or near the walls of the comminutors 2, 3. The comminutors are thermally jacketted. The roller mills have convex cambered rollers 30, 31. The prepared paste is mixed with water for spraying as a growth promoting agricultural fertilizer.
Patent GB-1531272-A (GB)
Title: Yarn winding apparatus
IPC: D01H9/00
Filed: 1975-10-16
Abstract: 1531272 Ring spinning bobbin exchange; pneumatic yarn displacement and waste removal ASAHI KASEI KOGYO KK 16 Oct 1975 [16 Oct 1974 (2)] 42490/75 Heading DID A yarn winding apparatus comprises means for mounting a bobbin yarn guide unit above said means, a first suction tube for sucking in a free yarn end, and a second suction tube below said yarn guide unit, the unit being arranged to guide yarn towards the second suction tube, and means for applying suction to the suction tubes. In a ring spinner, Fig. 4, yarn 1 is guided by guides 4, 5 outside the body of unit 6 to the yarn balloon. During bobbin exchange, the running yarn is severed, air is blown by pipe 8, Fig. 1, through body 6 to suck the yarn from its normal path Y' through slot 10, and suction is applied to pipe 7a to cause the yarn end to pass to waste box 7b, Fig. 12. When an empty bobbin is installed, the yarn is severed by cutters 11, and air from pipe 8 blows the yarn, Fig. 11, into suction nozzle 16 connected to waste box 16a. The yarn in its Fig. 11 path is caught by guide 13 on the traveller, Fig. 12, where the guide is shown offset for clarity. Pusher 17 is advanced to engage the yarn with spindle catcher 14a, and the yarn running to waste is severed by advanced cutter 18. Pusher 17 may be replaced by a yarn-projecting fluid nozzle. Retractable guide 5a', Fig. 4, may limit the yarn balloon.
Patent GB-933822-A (GB)
Title: Improvements in or relating to cooling means for instruments
Inventor: ELLINGER JOHN HENRY
IPC: G21C15/14
Filed: 1959-12-18
Abstract: 933,822. Viewing equipment for reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 24, 1960 [Dee. 18, 1959], No. 43012/59. Class 39 (4). [Also in Groups XIII and XL (b)] An instrument such as a television camera is cooled by means of the evaporation of a liquid contained in a hollow-walled porous member surrounding the instrument which vaporizes at a temperature approaching the maximum operating temperature of the instrument. The television camera 1, mounted in a high temperature region of a nuclear reactor, is enclosed within a non-porous container 2 the lower end of which constitutes a double glazed window 3. An annular hollow walled porous member 4 divides the interior of the container into a camera containing region 5 and an outer region 6. The coolant liquid, which enters the space 8 via the annular passageway 11, diffuses inwardly and outwardly through the porous member 4 towards regions 5 and 6. The gas is withdrawn via annular conduits 13 and 14 in order to be condensed in a heatexchanger and recirculated. The pressure in the camera is less than that of the reactor so that any leakage does not contaminate the reactor coolant gas.
Patent GB-1475561-A (GB)
Title: Auxiliary seat
IPC: A61G5/14
Filed: 1974-10-04
Abstract: 1475561 Invalid seat LANDSTINGENS INKOPSCENTRAL LIC EKONOMISK FORENING 4 Oct 1974 [5 Oct 1973] 43166/74 Heading A4J An auxiliary seat for assisting invalids to stand comprises a base 10 and a seat 16 pivoted together along one edge by springs 12-15 secured thereto. The springs are kept centred by a tube retained by pegs 19. An adjustable strap 23 controls the extent of "opening", and a catch 24-34-36 retains the device in a "closed" condition. A chordal slot 25 in tapered pin 24 is engaged by a spring wire 34 passing through a slot in the wall of collar 36. The spring wire 34 is the central part of a U-shaped member whose side arms 28, 29 are rigid. The "corners" of the U are pivoted to the base at 32-33. Spring wire catches 26 are provided on the seat bottom. Operation. If a invalid moves one of the levers 28 outwardly it will be retained in the outward position by a catch 26a. In this position the spring wire is urged to leave the slot 25 in pin 25 to thereby release the catch, but will not in fact disengage, because of friction, until the person so adjusts his weight that the slots in collar 36 and pin 24 are exactly in register. Upon release the springs 12 assists the invalid to stand.
Patent GB-1119580-A (GB)
Title: Insecticidal compositions
IPC: A01N33/00
Filed: 1966-09-28
Abstract: An insecticidal composition comprises a chlorinated hydrocarbon insecticide and a primary, secondary or tertiary aliphatic amine or an N-aliphatic trimethylene diamine, or an alkoxylated derivative thereof, said amine having at least one hydrocarbon radical of from 8 to 22 carbon atoms.  The chlorinated hydrocarbon may be DDT, Dieldrin, Aldrin, Endrin, Heptachlor, Chlordane, Toxaphene or Methoxychlor.  The amine may be oleyl amine, N-oleyl dimethyl amine or ethoxylated tallow amine.
Patent GB-1097740-A (GB)
Title: Automatic toner or pigment replenisher for electrostatic printers
IPC: G03G15/00
Filed: 1964-12-29
Abstract: 1,097,740. Developing electrostatic images. SCM CORPORATION. Dec.29, 1964 [May 11, 1964], No.43424/66. Divided out of 1,097,737. Heading G2H. An electro-photographic copying apparatus has a dispensing device for replenishing toner or pigment used in development which replenishing is responsive to the movement of copy paper through the apparatus. The device is shown embodied in the apparatus described in Specification 1, 097, 737 in which copy sheets are developed by passage through a tank 44 containing liquid developer. Toner or pigment is supplied from a container 702 under the control of a valve 708 held closed by a spring 726. An arm 730, actuated by a solenoid 732, lifts valve 708 upon energization of the solenoid 732 to dispense a metered quantity of toner or pigment. Energization of the solenoid 732 is controlled by a switch 760 actuated by a roller 770 tripped by a cam 754 having notches 771, 772 and 774, such that the switch 760 is closed when the roller 770 engages each one of the notches. The cam 754 is driven through a motor (756) Fig. 3 (not shown) which is energized until the trailing edge of a document being copied clears a switch (604) Fig. 1 (not shown). The rate of flow of pigment or toner may be varied by adjusting the speed of the motor (756) Fig. 3 (not shown) or by changing the number of notches in cam 754, Fig.2, by means of an adjustable masking plate 780 on the cam 754.
Patent GB-923034-A (GB)
Title: Bolt with self-contained multi-part nut
IPC: F16B33/00
Filed: 1960-12-20
Abstract: 923,034. Nuts; screw sockets. J. H. DEVINE, and E. Y. DEVINE. Dec. 20, 1960, No. 43743/60. Class 89 (1). [Also in Group XXIII] A collapsible nut 30 for bolting together plates 36, 37 apertured to receive the nut comprises segments 52 angularly movable to collapse the nut for insertion in the aperture and held together by a resilient ring 64, heads 54 on the segments for engaging the plate 37 when the segments are expanded by a bolt 33 engaging screw threads in the segments, and a sleeve 31 for locating the assembly. The three or more nutsegments have tapered shanks 53, Fig. 2, and a hexagonal or splined periphery 56 for engaging a co-operating surface 57 on a collar in the bore of the sleeve 31. After insertion of the segments 52 in the sleeve 31, the holding ring 64 is positioned and co-operates with the collar 57 to prevent removal of the segments. To insert the sleeve and nut in the plate apertures, the nutsegments are pivoted about points 63 to close the heads 54 for passage through the apertures, the ring 64 expanding the segments as the heads emerge. Surfaces 55 on the segments may be knurled or serrated. The head of the sleeve may seat against the outer surface of plate 36, Fig. 7 (not shown), or be countersunk and knurled or serrated. Sealing rings 40, 43 are located beneath the bolt and sleeve heads, which may be recessed at 51, 44 to receive a hand-tool, Fig. 22 (not shown), the conical, threaded end of which may be used in the outer end of the nut to contract the inner end for insertion in or removal from the plate-apertures. In a modification. Fig. 11, the inner ends 77 of the nutsegments are bevelled, permitting press-snapping into the plate-openings. For thick plates, Fig. 15, the nut need not be keyed to the centring sleeve 78, a countersunk or projecting extension sleeve 82 being provided to which the nut is keyed, as before. Instead of an extension sleeve, a toothed &c. flange 79 on the centring sleeve 78 may broach the plate openings, locking the sleeve against rotation. For use in blind holes 90, Fig. 17, the segments 91 may have teeth 93 biting into the plate when the bolt is tightened. The bolt may have wings or an eye, Fig. 18 (not shown).
Patent GB-1270319-A (GB)
Title: Method for preparing slurry explosive compositions of variable and controlled density
Inventor: BROCKBANK STEPHEN M
IPC: C06B21/00
Filed: 1969-09-05
Abstract: 1,270,319. Explosive compositions. IRECO CHEMICALS. 5 Sept., 1969, No. 43967/69. Heading C1D. An explosive slurry is prepared by aerating a solution containing an inorganic oxidizer salt and a foam stabilizing agent to produce fine gas bubbles therein, and then mixing the solution with particulate sensitizing solids. Aeration lowers the density and increases the detonation velocity, sensitivity, and seismic strength of the composition. Apparatus is described with reference to drawings in which a concentrated solution of ammonium nitrate containing a foam stabilizing agent is divided into two streams, one flowing direct to a mixer and the other passing via a blending device where air (or N 2  or CO 2 ) is beaten into the solution. The slurry may be pumped into containers or direct into a bore-hole; the degree of aeration may be varied so that the density is different at different parts of the bore-hole. The foam stabilizing agent may be guar gum, flour, or precooked starch; borax, potassium or sodium dichromate, or tannic acid may act as cross-linking agents; guar gum may be added dispersed in an alcohol, glycol, glycol ether, or formamide. Additional foam promoting agents are a linear aliphatic ethoxylate sulphate or an organic phosphate ester. Solids specified for addition to the composition are Al, sulphur, gilsonite, powdered coal, TNT, and smokeless powder. The oxidizer salt may include sodium nitrate and also chlorates and perchlorates.
Patent GB-1281225-A (GB)
Title: Improvements in or relating to photopolymerization and photographic elements
Inventor: CERWONKA EDWARD JOHN
IPC: G03F7/029
Filed: 1969-09-08
Abstract: 1281225 Photopolymerization catalysts GAF CORP 8 Sept 1969 [9 Sept 1968] 44213/69 Heading C3P [Also in Division G2] Monomers containing the group are photopolymerized by exposure to electromagnetic radiation in the visible to the U.V. range, in the presence of a catalyst consisting of a light sensitive aromatic diazonium compound (sensitive to electromagnetic radiation) and a phenazine, phenthiazine, thiazolyl, phthalein, azine, oxazine, thiazine; or thiazole dye. The process is useful for producing photographic relief images, by carrying out the polymerization on a support, in the presence of a colloid carrier such as polyvinylpyrollidone, gelatine, P.V.A., carboxymethyl- or hydroxyethyl cellulose. In the examples,N,N<SP>1</SP> methylene bisacrylamide is photopolymerized in an aqueoussystem in the presence of (2) Methylene Blue (a phenthiazine dye) and para toluene diazonium chlorozincate; (3) Methylene Blue and p-toluene diazonium fluoroborate; (4) Rose Bengal (a phthalein dye) and p-toluene diazonium chlorozincate; (5) Rose Bengal and p-toluene diazonium fluoroborate; (6) Titan Yellow (a thiazole dye) and p-toluene diazonium chlorozincate; and (7) Titan Yellow and p-toluene diazonium fluoroborate. In Examples (8), (9) and (10), N,N<SP>1</SP>-methylene bisacrylamide was mixed in the dark, in an aqueous system with colloidal polyvinylpyrollidone, a spreading agent, and catalysts of:-p-toluene diazonium chlorozincate and Methylene Blue (8) p-toluene diazonium fluoroborate and Rose Bengal (9); and p-toluene diazonium fluoroborate and Titan Yellow (10), and these mixtures were applied to prepared glass plates and polymerized by exposure to light, to produce images (see also Division G2).
Patent GB-1021059-A (GB)
Title: Improvements in and relating to disc brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F16D55/2255
Filed: 1962-11-22
Abstract: 1,021,059. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Nov. 18, 1963 [Nov. 22, 1962], No. 44232/62. Heading F2E. In a disc brake of the kind wherein brake pads 6 and 7 are disposed on opposite sides of a disc 5 and are carried on movable members 1, 2, pivoted respectively at 10, 17 to a fixed support, each pivot comprises a pivot pin 10, 17 engageable in a slot 11, 18 extending substantially at right angles to the resultant force acting on the pivot pin, the mountings being disposed in spaced relationship one on either side of the brake disc (as shown) or on the same side thereof. The pins 10, 17 are rotatable in the support and have flat surfaces 12 engaging the slots. In other embodiments the pivot points of the two members are on the same side of the disc and the pins are fixed to the support while the slots have non-parallel edges engaging the flat faces of the stationary pins. The slot length is of sufficient length to permit sliding movement of each movable member in relation to the disc to ensure even pad wear.
Patent GB-1299626-A (GB)
Title: Apparatus for parking vehicles or storing articles
Inventor: GUNNARSSON ANDRJES
IPC: E04H6/14
Filed: 1970-09-16
Abstract: 1299626 Mechanical garage or article store A GUNNARSSON 16 Sept 1970 [16 Sept 1969] 44334/70 Heading B8E Cars 6 are parked in a mechanical garage on trays 1 supported on frames suspended on diagonally opposite corners by supports 3 pivoted on a pair of parallel endless drive chains 5. Guide rollers 13 on the trays 1 run in U-section tracks 12 parallel to the chains 5 to prevent pendulation. The system may be used for storing articles.
Patent GB-1510613-A (GB)
Title: Hopper barge having a bottom discharge opening closed by hopper doors
IPC: B63B25/04
Filed: 1976-10-26
Abstract: 1510613 Bottom dumping vessels A VUYK & ZONENS SCHEEPSWERVEN BV 26 Oct 1976 [4 Nov 1975] 44436/76 Heading B7A To prevent damage, a hopper barge has at least one bottom opening closed by at least one door which when moving from a closed position to an open one undergoes both a pivoting and translatory movement to end up inside a box keelson. As described in one embodiment (see Fig. 2) pairs of such doors 8, 9 are arranged to close a bottom opening 6 and are opened by a pair of pistons 11 whose rods 12 are connected to the doors by pivot levers 28, 30. Adjacent longitudinal edges of the doors 8, 9 are pivoted to a part 17 which slides up guides 20, 21 inside a box keelson 10 as the piston-rods 12 are retracted. In another similar embodiment (not shown) pairs of rectangular doors have cam followers at each of their corners which move along guide tracks.