baber/WOPTO huggingface dataset:
Patent GB-1213760-A (GB)
Title: Hydraulic actuators
Inventor: SEITZ WILLIAM RICHARD
Filed: 1969-10-09
Abstract: 1,213,760. Differential gear. GENERAL MOTORS CORP. 9 Oct., 1969, No. 49670/69. Heading F2D.  A thrust device 41 which employs hydrodynamic bearing pressure generated by the relative rotation of two contacting surfaces 31, 45 to produce axial thrust, used in this instance to load anti-spin clutch-discs 34 arranged between an input planet-carrier 11 and output side wheels 25, 26 of a limited slip differential gear on a motor-vehicle, comprises an annular piston 44 splined at 51 to rotate with the planetcarrier 11, and having on its outer face 45, contacting the plain bearing face 31 of the wheel 26, spiral grooves (Fig. 4, not shown) or radial grooves 46 between circumferentially-tapered trapezoidal recesses 48, 49 (of about 0À00025 inch depth), the depressions 48 terminating in axial holes 50, whereby when the piston 44 rotates forwardly relative to the adjacent sidewheel 26, their contacting faces 45, 31 develop in the recesses 48 hydrodynamic pressure which is fed through terminal holes 50 to an annular cylinder 42 in which the piston 44 has sealed slidable but not rotatable engagement. The axial thrust thereby applied to the cylinder 42 loads the clutch discs 34 to inhibit differential spin. As shown a thrust device 41 for each clutch loads only its own clutch and only for forward spin. In Fig. 3, not shown, a radial pin 21 supporting an inner thrust block 62 (65, Fig. 3) of the differential, has axial clearance in the block so that each thrust device loads both clutches. In Figs. 5-7, not shown, both the piston and cylinder have trapezoidally grooved pressuregenerating faces and there is an internal checkvalve (114) so that each face can develop pressure in opposite directions of rotation thus loading both clutches at once.
Patent GB-1423014-A (GB)
Title: Magnetic recording head
IPC: G11B5/49
Filed: 1973-10-25
Abstract: 1423014 Magnetic recording heads HONEYWELL Inc 25 Oct 1973 [26 Oct 1972] 49766/73 Heading G5R A magnetic recording head has a magnetic circuit formed with two gaps such that a magnetic record medium 2 can pass through each gap in turn, the gaps being defined between magnetic core members 8, 30 of high and low retentivity respectively, with the faces of said members at one said gap being substantially larger than their faces at the other gap. The member 8 may be of ferrite and the member 30 of low reluctance material such as soft iron. The member 8 is divided at its sntaller gap face into a plurality of recording styli 16, 18, 20 having respective energizing windings 22, 24, 26. A common bias and reset winding 28 is used to provide a bias to determined an " at rest " position giving substantially zero output magnetic flux at unenergized styli 16, 18, 20 and to provide a reset or de-energizing signal superimposed on the bias signal to restore the " at rest " position on cessation of stylus energization.  The record medium is. a web 2 having capsules 4 uniformly distributed therein, each capsule 4 containing a suspension of magnetically responsive particles 6, e.g. of needle-like or platelike form, whereby the particles 6 may be initially uniformly pre-oriented, for example, in the place of web 2 and re-oriented by the recording fields of styli 16, 18, 20 perpendicular to the web 2 to produce areas 32 which appear relatively dark, thereby producing a visible trace.
Patent GB-1272794-A (GB)
Title: Improvements in or relating to the erection of partitionings
Inventor: FRIBBENS DENNIE GEORGE
IPC: E04B2/82
Filed: 1969-10-10
Abstract: 1,272,794. Partition fixing. WILLIAM MALLINSON & SONS (MFG.) Ltd. 9 Dec., 1970 [10 Oct., 1969], No. 49888/69. Heading E1W. A partition panel 19 is fixed spaced from the floor (not shown) by an arrangement of (1) a substantially rectangular aluminium block 1 with flat opposed end faces flat opposed side faces 4, 5 and opposed faces 6, 7 with longitudinally extending recesses 9 and projections 8 between the end faces and (2) an elongate aluminium member 13 with at least 1 channel formation which is complementary to and slides around the block 1. The block is fixed to the floor by means of an expansion bolt or self tapping screw engaging through a longitudinal bore 12 therein into a hole in the floor which may be packed with a deformable sleeve. The member 13 is fixed to the block 1 by a grab screw 16 engaging a threaded hole extending normally to the bore 12. Panels 19 are fixed at the required height by resting on a further block 1 fixed by a grab screw 16 at the required height and an inserted aluminium strip 22 cut to the required length is sprung into the mouth of the channel. Two such supporting posts may be placed back to back or in T or X configuration each arm of which being of U-section. Such composite shaped elongate members may be formed in a single extrusion.
Patent GB-1340280-A (GB)
Title: Automatic headlight control system
IPC: B60Q1/105
Filed: 1972-11-02
Abstract: 1340280 Valves CIBIE PROJECTEURS 2 Nov 1972 [8 Nov 1971] 50571/72 Heading F2V [Also in Division F4] In a system for controlling the inclination of the headlamps of a motor vehicle in accordance with the attitude of the vehicle body the headlamps are connected by a rod 12 to a piston 18 responsive to the difference in pressure between two fluid conduits 22, 24 and means are provided for venting one of the conduits 22 if the pressure in the other conduit 24 falls below a predetermined value, e.g. as a result of leakage, the headlamps then being tilted to their lowest position by a light return spring 20 acting on the piston. The means comprise a movable valve element 32 sensitive to the difference in pressure between the conduit 24 and a reservoir Po, preferably the atmosphere, a reduction in this pressure difference below the predetermined value being sufficient to permit the valve element 32 to be raised by a spring 34 which simultaneously opens a valve element 28 in the conduit 22.
Patent GB-1398947-A (GB)
Title: Arrangement for the measurement of traces of gases
IPC: G01N27/416
Filed: 1973-10-31
Abstract: 1398947 Gas determining apparatus HARTMANN & BRAUN AG 31 Oct 1973 [18 Nov 1972] 50579/73 Heading G1N Apparatus for measuring trace amounts of gas by measuring the conductivity of a liquid before and after absorption of the gas therein utilizes a thermostatically controlled bath 5 of the liquid and a flow metering device comprising a level regulator 4 with a float valve 6. The liquid flows down vertical tube 9 and through reference conductivity cell 11 and capillary tube 12. The gas passes through filter 13, tube 15 and capillary 14 to meet the liquid in downwardly sloping tube 16. The gas inlet is also connected to the gas chamber of the level regulator 4 and to an outlet of pipe 24 below the surface of the liquid in bath 5. The tube 16 passes into a vertical arm of U tube 17 which has the measuring cell 19 in its downstream arm. Nozzle-like branch 18 emerges from the vertical arm 17 and has a sloping portion 23 and a glass rod 22 on the opposite wall which is said to aid the flow from tube 16 into the U tube and prevent outflow from or flow into branch 18. After conductivity measurement the gas containing liquid is exhausted into the liquid in vessel 5, the level being maintained constant by pipe 20 and suction pump 22. The gas concentration is determined at 26 from the difference of the two conductivities and displayed at 27. Device 26 also controls resistance heater 28.
Patent GB-1115179-A (GB)
Title: Textile fibre drafting apron
IPC: D01H5/80
Filed: 1965-11-29
Abstract: 1,115,179. Drafting aprons. DAYCO CORPORATION. 29 Nov., 1965 [22 Dec., 1964], No. 50599/65. Heading D1D. [Also in Divisions  B5 and F2]  A tubular textile drafting apron 11 having an inner layer 13 of natural or synthetic rubber, an outer exposed layer 12 of a polyurethane elastomer and an intermediate layer 14 of helically wound textile cords, said outer layer being free of seams, joints and fillers and having a tensile strength between about 4500 and 6000 psi and an abrasion resistance of no greater than 0.0175 gm. per 1000 revolutions when tested with a Taber H-22 wheel is made by placing a tubular rubber member 15 on a mandrel, helically winding a cotton, rayon, nylon or polyester textile cord 18 from a spool 19 on lead screw 20 which is driven simultaneously with the mandrel to feed the spool to the right over the rotating member, applying adhesive e.g. a rubber cement to the member, applying a tubular member 23 of the polyurethane, wrapping the assembly several with a tics material (e.g. of polyvinyl or polyethylene) several times and applying a helically wound tape e.g. a fabric strip to the assembly which is removed from the mandrel and cured under elevated temperature with subsequential removal of the tape and plastics material.
Patent GB-1210913-A (GB)
Title: Machine tools with automatic tool change facilities
Inventor: HARMAN JULIUS
IPC: B23Q3/155
Filed: 1966-11-11
Abstract: 1,210,913. Lathe. ALFRED HERBERT Ltd. 7 Nov., 1967 [11 Nov., 1966], No. 50649/66. Heading B3T. A lathe comprises tool mount means 39, 47, Fig. 2, an indexable tool storage magazine 48, having tool carrying elements 51, and tool transfer devices 154A, 154B, each of which transfers tools between the magazine and the means 39, 47, without any axial movement being applied to the tools by the device. The lathe is as disclosed in Specification 1,195,371.
Patent GB-1085938-A (GB)
Title: Voice-frequency key dialling telephone system
IPC: H04M1/50
Filed: 1965-12-02
Abstract: 1,085,938. Voice-frequency receiving arrangement. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Dec. 2, 1965 [Dec. 8, 1964], No. 51168/65. Heading H4K. To enable v.f. dialling to take place during an established call, such as for operator recall, or call transfer, a tuned v.f. receiver is connected at the exchange to the connection via a transmission bridge for the duration of the call, which receiver in response to a predetermined combination of voice frequencies from a subscriber causes a free register to be connected up to receive the further dialling signals. To determine which of the two interconnected subscribers sent the signal, the connection is temporarily broken on one side of the receiver to see whether the signal disappears. The register is then connected appropriately and proceed to dial tone transmitted. The receiver cannot instantaneously distinguish v.f. signals from speech signals but does so by recognizing their persistance relative to interfering speech components. Accordingly the subscriber must transmit the signal for sufficient time. The signal is sent either by depressing a combination of digit keys of the keysender or by using a specified key.
Patent GB-1132150-A (GB)
Title: Improvements in and relating to a fastening combination
IPC: A47B96/06
Filed: 1966-11-18
Abstract: 1,132,150. Handles. UNITED-CARR Inc. 18 Nov., 1966 [22 Nov., 1965], No. 51681/66. Heading A4U. [Also in Divisions E1 and E2] In the combination of an article 28 secured to a support 30 by a fastening device, the fastening device comprises an adaptor 10 and a stud 20, the adaptor having a base portion 12 and means 32 associated therewith which engage the article and attach it to the base portion a keyhole slot 16 having an enlarged portion and a tail portion formed through the base portion and an abutment 18 on the base portion at the junction between the enlarged portion and the tail portion of the slot, the stud comprising a head portion 24 and a shank portion 22 extending from the head portion and the shank portion having a free terminal end wherein the stud is secured at the terminal end of the shank portion to the support without perforation of the support, the shank portion extends through the keyhole slot in the base portion and the head portion of the stud overlies in abutting relation a portion of the base portion adjacent the enlarged portion of the keyhole slot whereby the base portion is held between the head portion and the support and movement of the adaptor relative to the stud is resisted by the abutment. In the construction shown the abutment is in the form of a transverse rib. The article shown is a handle and each end is secured to the support by a said fastening device.
Patent GB-1243241-A (GB)
Title: Arrangement for separation by sedimentation of solid phase suspended in liquid
Inventor: JERNQVIST AKE
IPC: B01D21/00
Filed: 1968-10-31
Abstract: 1,243,241. Sedimentation apparatus. REDERIAKTIEBOLAGET NORDSTJERNAN. 31 Oct., 1968 [31 Oct., 1967], No. 51713/68. Heading BID. Sedimentation apparatus comprises a tank enclosing an array of parallel, inclined baffles 2, defining spaces 3 therebetween, an inlet 6 opening into each space 3 and the part of each space above the inlet being subdivided by further baffles 7 into spaces 8, clear liquid overflowing from the tank at outlet 5, concentrated suspension leaving by outlet 4. Several such units may operate in parallel. Baffles could be slightly relatively inclined.
Patent GB-1416358-A (GB)
Title: Method of producing methacrylonitrile
Filed: 1973-11-07
Abstract: 1416358 Methacrylonitrile S I O MEKHTIEV M A DALIN R A O POLCHAEV and R G O MAMEDOV 7 Nov 1973 51749/73 Heading C2C Methacrylonitrile is made by catalytically reacting isobutene withammonia and atmospheric oxygen at 380-520 C. to form a gaseous mixture containing methacrylonitrile, acetonitrile, hydrocyanic acid and unreacted ammonia ; the ammonia is removed, and the ammonia-free mixture in liquid form is treated with an amount of acetone equimolar to the HCN at 50 C. in the presence of an alkaline catalyst to form acetonecyanohydrin; the resultant mixture is treated (without isolating the cyanohydrin) with phosphoric anhydride in a polar organic base at 0-35 C. to form further methacrylonitrile, the cyanohydrin, phosphoric anhydride and organic base being- in the molar ratio 1 : 1-3 : 1-6. In examples, a Bi/Mo/W catalyst is used for the ammoxidation. Ammonia is removed from the product gas by contact with sulphuric acid. The alkaline catalyst is KOH. The polar organic base is quinoline or pyridine.
Patent GB-1124856-A (GB)
Title: Method and apparatus for producing seam connections
IPC: D05B93/00
Filed: 1966-11-18
Abstract: In the production of foundation garments or swimwear made from elastic fabric, the cut edges of the fabric are joined in a single seaming operation (see Division D1) by means of flat seam stitching with the simultaneous introduction of an elastic strip e.g. a tape, braid or lace edging.  The strip functions as form-retaining stiffening and may also serve a decorative purpose.
Patent GB-1172691-A (GB)
Title: Balloon Inflating Device.
Inventor: MAIN JAMES THOMAS
IPC: B63C9/18
Filed: 1966-01-06
Abstract: 1,172,691. Generating hydrogen. HELLIER AIRBORNE Ltd. 6 April, 1967 [6 Jan., 1966; 22 Nov., 1966], Nos. 709/66 and 52189/66. Heading B1X. [Also in Division B7] A balloon device for use example for rescue work at sea comprises receptacle 19 which includes expandable envelope 20 enclosing expandable spring 16, at least one water inlet passage 30 giving passage for water past flexible flap 24 and through passage 25 to a substance 15, 21 capable of generating gas by reaction with water, and balloon 22 which is expanded by the gas produced in the envelope 20. The gas generating substance may be sodium borohydride with cobalt chloride as catalyst, or lithium hydride, sodium hydride in oil, calcium hydride or lithium borohydride. Before use, deflated envelope 20, compressed spring 16 and deflated balloon 22 are enclosed in container (17) (Fig. 1 not shown). When lid (13) is removed the spring expands and water is drawn into the envelope. When the envelope is fully expanded cord 26 pulls plug 5 from the nozzle connecting the envelope and the balloon and gas flows into the balloon through one-way valve 23. A water-soluble seal 18 dissolves to free the balloon.
Patent GB-523687-A (GB)
Abstract: 523,687. Calculating apparatus. KOOPERATIVA FORBUNDET FORENING U. P. A. Jan. 12, 1939, No. 1058. Convention date, Jan. 13, 1938. [Class 106 (i)] In a machine in which the driving members or racks may be selectively coupled with various different totalizers the coupling wheels which are in constant mesh with the racks are carried on a shaft which is displaceable to engage the wheels with the selected totalizer, the driving racks being held during displacement of the shaft by a locking bail normally held clear of them. The machine has two totalizers 27, 28 and a single set of actuator pinions 22 constantly in mesh with differentially-set wheels 21. The actuator pinions are mounted on a shaft 23 carried by levers 24 that are rockable on a shaft 20 to engage the actuator with either totalizer in the manner described in Specification 509,441. The differentially-set wheels 21 are aligned by a cam-actuated bail 53 during the engaging and disengaging movements of the actuated pinions. The totalizers are provided with transfer mechanism of the kind described in Specification 509,450.
Patent GB-1122240-A (GB)
Title: Solutions of polymers of chloromethyl oxetane
Inventor: WIEJAK ALEKSANDER JERZY
IPC: C09D171/02
Filed: 1964-12-24
Abstract: A solution comprises one or more polymers of 3,3-bis(chloromethyl) oxetane dissolved in a solvent comprising 2-pyrrolidone, an N-alkyl 2-pyrrolidone, an N-alkenyl 2-pyrrolidone or a mixture of two or more thereof.  The solution may be obtained by dissolving the polymer, preferably 5 to 30% by wt., in the solvent at an elevated temperature, e.g. 100 DEG  C., and subsequently cooling the solution. Suitable solvents include 2-pyrrolidone, N-methyl- and N-vinyl-2-pyrrolidone or mixtures thereof, and they may be mixed with other solvents, e.g. cyclohexanone, isophorone or tris-dimethylamine phosphine oxide. The solutions are suitable for use as coating compositions (see Division B2).ALSO:A coating composition comprises a solution of one or more polymers of 3,3-bis (chloromethyl) oxetane dissolved in a solvent comprising 2-pyrrolidone or an N-alkyl- or N-alkenyl-2-pyrrolidone.  Other solvents may also be present and the coating may be applied by treating the surface with the solution and heating the coating to evaporate the solvent. Specified materials which are coated are metal surfaces such as iron, steel, aluminium, copper and tin, wood, paper, cardboard, glass, glass fibres, asbestos and fabrics made from actual or synthetic materials, e.g. plastics, such as vinyl polymers or copolymers or mixtures thereof, and mixtures of vinyl polymers or copolymers and copolymers of acrylonitrile, butadiene and styrene, which may be compounded with conventional plasticisers, stabilisers, blowing agents and pigments. The film may also be modified by the addition of pigments or drilling agents to the solution.
Patent GB-1133080-A (GB)
Title: Improvements in or relating to derivatives of nitrofuran
IPC: C07D405/04
Filed: 1967-11-20
Abstract: 1,133,080. Nitrofuran derivative. NORWICH PHARMACAL CO. 20 Nov., 1967 [25 Nov., 1966], No. 52761/67. Heading C2C. The novel compound 6-chloro-2-(5-nitro-2- furyl) cinchoninic acid is prepared by reacting 5-chloroisatin with methyl furyl ketone in the presence of a base, generating the 6-chloro-2- (2-furyl)-cinchoninic acid from its salt, e.g. sodium salt, and nitrating the acid. Pharmaceutical compositions having antibacterial activity comprise the novel compound together with a pharmaceutically acceptable carrier or diluent.
Patent GB-1339815-A (GB)
Title: Method and apparatus for automatically separating length of  knitted or woven goods
IPC: D06H7/22
Filed: 1971-11-15
Abstract: 1339815 Parting fabrics SCHIESSER AG 15 Nov 1971 [16 Nov 1970] 52908/71 Heading D1S [Also in Division B5] Knitted or woven webs 5 which are initially made in sequence and connected together by fusible parting threads are separated by briefly and sequentially exposing the parting positions 7 to a hot air stream so as to melt the threads. The fabric may have been knitted on a circular or flat-bed knitting machine from natural fibres or synthetic fibres of higher melting point than the parting threads. The web is guided by rotating sieve roller 6 through the gap between nozzle 3 and suction funnel 4 of an air blower that includes heater 2. Preferably a slider contact switches on the hot air just before each parting position 7 passes through the gap. Alternatively the hot air is provided continuously and the web speed is so high that its exposure to heat is too short to degrade the fabric.
Patent GB-1461109-A (GB)
Title: Process for producing 2-chloro-pyridine
IPC: C07D213/61
Filed: 1974-12-06
Abstract: 1461109 2-Chloropyridine SEITETSU KAGAKU CO Ltd 6 Dec 1974 [8 Dec 1973 (2)] 52908/74 Heading C2C 2-Chloropyridine is prepared by reacting pyridine with chlorine in a molar ratio of pyridine to chlorine of 0À5-10 : 1 under irradiation of photolytic light particularly of 200-5000 Š and in the gaseous phase in the presence of at least 0À2 moles of steam per mole of pyridine. A halogenated hydrocarbon, e.g. CCl 4  may be added to the reaction system as a diluent.
Patent GB-1151298-A (GB)
Title: Improvements relating to Metallizing Compositions
IPC: B22F9/00
Filed: 1967-11-22
Abstract: 1,151,298. Glass metal compositions for coating. INTERNATIONAL BUSINESS MACHINES CORP. 22 Nov., 1967 [29 Nov., 1966], No. 53069/67. Heading C1M. [Also in Division C7] A composition for firing on to a ceramic substrate to provide an electrically conductive pattern, comprises a vitreous frit with a particulate metallic content consisting of Au 59À8- 70%, Pt 10-20% with the balance Pd. The frit preferably comprises bismuth trioxide and/or lead borosilicate glass. The suspension vehicle comprises a gelation agent (e.g. castor oil or aluminium stearate), a resinous binder (e.g. natural gums, synthetic resins or cellulosic resinous materials) and a solvent (e.g. higher boiling paraffins, aromatic hydrocarbons or butyl carbitol acetate). The paste is applied by silk screening and is then dried and fired to give a coating which may readily be tinned (e.g. with a 90% Pb 10% Sn solder).
Patent GB-1492577-A (GB)
Title: Vacuum interrupter arcing shield
IPC: H01H33/662
Filed: 1974-12-09
Abstract: 1492577 Vacuum switches WESTING- HOUSE ELECTRIC CORP 9 Dec 1974 [19 Dec 1973] 53094/74 Heading H1N In a vacuum switch having a tubular evacuated insulating envelope containing a fixed and movable contact and a main tubular arcing shield 40 surrounding the contacts, the main arcing shield is made of metal and includes insulating members or insulating material 70 mounted on or disposed on parts of the outer surface of the main arcing shield at least adjacent each end of the shield. In addition the shield may be formed with inwardly or outwardly facing grooves near each end, Figs. 4 and 5, not shown, or auxiliary shields may be associated with and supported by the main arcing shield, Figs. 1 and 2, not shown, the object being to prevent arcing to the outer surface of the shield.
Patent GB-1457678-A (GB)
Title: Determination of serum triglycerides and reagents therefor
IPC: C12Q1/44
Filed: 1974-12-10
Abstract: 1457678 Determination of serum triglycerides IATRON LABORATORIES Inc 10 Dec 1974 [7 June 1974] 53286/74 Heading G1B Serum triglycerides are determined by a process in which a sample of the serum is treated with an aqueous composition containing lipoprotein lipase, glycerol dehydrogenase, nicotinamide adenine dinucleotide (NAD), phenazine methosulphate and a tetrazolium compound, the triglycerides thus being hydrolyzed to glycerol and the glycerol  dehydrogenated, and the resultant mixture is subjected to colorimetry, using for example 570 to 600 nm wavelength. The lipoprotein lipase may be obtained from Chromobacterium viscosum var. paralipolyticum and the glycerol dehydrogenase from Bacillus megatherium. A package for use in the process includes a first container containing the lipase, dehydrogenase and NAD optionally as a freeze-dried buffered solution and a second container in which there is an aqueous solution of phenazine methosulphate and a tetrazolium compound.