baber/WOPTO huggingface dataset:
Patent GB-1248291-A (GB)
Title: Branched ethylene/diene copolymers
IPC: C08F210/00
Filed: 1969-02-14
Abstract: 1,248,291. Ethylene-non-conjugated diene copolymerization. E.I. DU PONT DE NEMOURS & CO. 14 Feb., 1969 [16 Feb., 1968], No. 8303/69. Heading C3P and C3Q. Ethylene is copolymerized with a non- conjugated diene in the presence of a vanadium compound, an organoaluminium compound, and a halogen-containing oxidant, in specified ratios such that the product of copolymerization (in a hydrocarbon solvent) to a conversion of 25 to 80% has a Branching Factor of at least 1À1. The dienes are C 6 -C 22  open chain or vinyl monocyclic (5 to 10 ring atom) alkenes. Optionally the catalyst may include an activator which is (a) a trialkyl aluminium compound, (b) isoprenyl aluminium, (c) Lewis bases such as ethers, esters, ketones or amines, (d) dialkyl aluminium acetylacetonate, alkoxide, hydride, amide or carboxylate. The resulting copolymers may be compounded with natural rubber. In examples, ethylene-propylene-hexadiene-1,4 terpolymers are obtained by polymerizing in hexane in the presence of VOCl 3 , (C 2 H 5 ) 2 AlCl-(C 2 H 5 ) 3 Al or (C 4 H 9 ) 2 AlCl, and benzotrichloride or hexachloropropylene, and the reaction terminated with isopropyl alcohol and a thiobisphenol.
Patent GB-219621-A (GB)
Title: Cushion tyre for motor and other vehicles, bicycles and the like
IPC: B60C7/12
Filed: 1924-04-02
Abstract: 219,621. Pistorius, E. April 2, 1924. Non-metallic elastic bodies and cores.-A cushion tyre comprises a closed rubber cover b reinforced at the rim by an extension c. Sets of beads e, h are formed on the inner side of the cover, the beads h serving as reinforcements. The beads e of each set hold between them rubber tubes f enlarged in the middle to form airchambers. Adjacent tubes f are connected by short rubber sleeves i, each of which forms a closed air-chamber.
Patent GB-766096-A (GB)
Title: Improvements in or relating to inlet devices for pneumatic transport conduits
IPC: B65G53/42
Filed: 1955-03-22
Abstract: 766,096. Pneumatic conveyers. BUHLER, GEB. March 22, 1955 [March 25, 1954], No. 8357/55. Class 78 (1). In a conveyer in which material contained in a hopper 1 passes into a conveyer duct 3 through an inlet box 2, and a partition 4 divides the box 2 and duct 3 into an upper channel 5, 6 for the material and a lower channel 7, 8 for the admission of scavenging air, the partition extends into the duct for a distance which is at least fifty per cent greater than the diameter of the duct. Air enters the channel 7, 8 through a pipe 10 which has its inlet above the highest level of the material in the hopper. A resilient plate 13 disposed immediately below the partition 4 is adjustable -longitudinally to vary the length of the partition by a rod 17 which can be locked in any position by nuts 16. The plate 13 rests on a screw 18 by turning which the relative sizes of the channels 6, 8 can be varied. The volume of air is regulated by a slidable valve 19. In a modification the air is supplied through an opening in the end of the box 2 which is in alignment with the duct 3.
Patent GB-947158-A (GB)
Title: Improvements in fuel injection pumps
IPC: F02M41/06
Filed: 1960-03-09
Abstract: 947,158. Centrifugal governors. SOC. INDUSTRIELLE GENERALE DE MECANIQUE APPLIQUEE, S. I. G. M. A. March 9, 1960 [March 12, 1959], No. 8365/60. Heading G3B. [ Also in Divisions F1 and F2] In a fuel injection pump pistons in a fixed cylinder block 1 are reciprocated by means of a cam 7 rotated by a shaft 4 which also carries a centrifugal governor 30 the weights 31 of which move a member 27 axially. The member 27 engages a member 28 rotated by the shaft 4 and axially slidable therein, the member 28 being connected to a distributing valve 2 by means of pin 35 which engages a helical slot 36 and by means of a spring 29. Axial movement of the member 28 is opposed by springs 38, 39, 40 acting on the opposite end of the valve 2. Spring 38 engages the valve 2 directly and the springs 38, 39 engage a member 44 slidable on a shaft 45. The ends of the springs 38, 39, 40 seat on a member 46 which is engaged by a throttle lever 47 movable between stops 50, 51. For starting purposes the valve 2 is moved to the left by compressing spring 38 by means of lever 47. On starting up the engine the member 27 moves the member 28 and the valve 2 to the right compressing the spring 38 until the valve 2 engages the member 44. On increased speed the member 28 compresses the spring 29 while the valve 2 is held against axial movement by the springs 39, 40 so that the valve 2 is caused to move angularly with respect to the member 28 whereby the time of injection is varied. Further increase of speed causes the member 28 to move the valve 2 against the action of the springs 38, 39 whereby the quantity of fuel injected is reduced.
Patent GB-716642-A (GB)
Title: Improvements in or relating to electric lamps
Inventor: JR DEXTER PARSHALL COOPER
IPC: H01K1/50
Filed: 1952-04-02
Abstract: 716,642. Electric incandescent lamps. INTERNATIONAL POLAROID CORPORATION. April 2, 1952, No. 8378/52. Drawings to Specification. Class 39 (2) An electric incandescent lamp of high candle power for operation at relatively high filament temperatures, e.g. of the order of 3600‹-3800‹K., comprises a tantalum carbide filament in an atmosphere of a volatile hydrocarbon and hydrogen. The volatile hydrocarbon consists preferably of methane, or ethylene. An inert gas of low heat conductivity, such as argon, krypton, or xenon may be added. A tantalum filament may be converted to tantalum carbide within a sealed bulb or envelope containing sufficient volatile hydrocarbon to convert the entire heated portion of the tantalum filament to tantalum carbide and, in addition, to maintain a condition of equilibrium preventing loss of carbon from the surface of the filament at the operating temperature. The conversion of the tantalum filament to tantalum carbide is effected in stages, the filament being first heated to about 2800‹K. by passage of current therethrough and, after being maintained at this temperature for approximately one minute, the applied voltage is increased gradually until a filament temperature of approximately 3600‹K. is reached, this temperature being maintained for five or ten minutes. The lamp may be used in flood-lighting for photographic purposes, or may be of the sealed-beam type embodying a parabolic reflecting portion for use as an automobile headlight, and may incorporate lens elements in known manner. The filament may be in the form of a wire or ribbon, and may be flat, coiled, looped or corrugated.
Patent GB-403964-A (GB)
Title: Feed-back circuits
IPC: H03C1/24
Filed: 1932-05-26
Abstract: 403,964. Valve circuits. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Wheeler, H. A. ; 18, Melbourne Road, Great Neck, New York, U.S.A.) May 26, 1932, No. 8396. Convention date, May 28, 1931. [Class 40 (v).] An oscillatordetector includes an input circuit between a control grid 53, Fig. 1, and earth, and coils 45, 46 for producing oscillations, which are coupled to an oscillatory circuit 42, 43, 44 and are connected between the anode 69 and cathode 70 respectively and earth, and the control grid is shielded by an earthed screening-grid 71 from the anode to minimise coupling between the oscillatory circuit and the input circuit. The input circuit is tuned to a signal frequency, the oscillatory circuit controls the local frequency, and a condenser 50 and a coil 51 are tuned to the intermediate frequency. The coil 45 gives a feed-back with a relatively greater effect at higher frequencies in the tuning range, and the condenser 43 provides a feed-back greater at lower frequencies. The two effects are so proportioned that the total feed-back is correct over the entire range. The condenser 43 also provides the difference in frequency calibration between the condenser 42 tuning the local oscillations and the ganged condensers tuning circuits to the signal frequency. The Specification as open to inspection under Sect. 91 comprises also a high-frequency amplifier and an oscillator. An oscillator 29, Fig. 2 (Cancelled), has two reaction coils 19, 22, the former, with incidental capacities, resonant higher than the tuning- range, and the latter, with a condenser 21, resonant below the tuning-range. A switch 15 connects pairs of condensers 16, 17 in circuit to vary the range covered bya a tuning-condenser 14. The plates of the tuning-condenser are semi-circular, but the axis of rotation is located eccentrically so that the entering edge of the rotor plates is one half the radius of the trailing edge. A reaction circuit of the above type is also described in connection with a receiving- valve, Fig. 1 (Cancelled, not shown). An oscillator 30, Fig. 3 (Cancelled), for heterodyne reception, has electromagnetic reaction due to coils 33, 34 and capacitive reaction due to a condenser 32 common to the grid circuit and the alternating-current branch of the anode circuit. The condenser 32 can be adjusted to compensate defects in ganging. This subjectmatter does not appear in the Specification as accepted.
Patent GB-450987-A (GB)
Title: Process for the production of solid magnesium sulphate monohydrate
IPC: C01F5/40
Filed: 1935-03-18
Abstract: <PICT:0450987/III/1> Magnesium sulphate monohydrate is obtained by heating a concentrated magnesium sulphate solution, preferably by stages, to a temperature situated on the descending branch of the solubility curve, but at which the separation of solid salts does not take place, and then cooling the solution, preferably by stages, by spontaneous evaporation, to temperatures situated on the ascending branch of the solubility curve and which still lie within the range of formation of the monohydrate.  As shown in the Figure, a saturated solution of magnesium sulphate at 75 DEG  C. is forced by a pump 2 through the heaters 3, 4 and 5 in succession in which it is heated by stages, to 90 DEG , 105 DEG  and 125 DEG  C. respectively.  The solution then flows in succession through the evaporators 6, 7 and 8 in which it is cooled by stages to 110 DEG , 95 DEG  and 75 DEG  C. respectively.  The evaporators 6 and 7 may be injection evaporators and the evaporator 8 be provided with stirring mechanism.  From vessel 8 the solution passes to a separator 9 for removal of deposited salt and the mother liquor is then recirculated through the heaters, evaporators, and separator together with fresh solution from tank 1.  The hot vapours from evaporators 7 and 6 are used respectively for heating the heaters 3 and 4, the heater 5 being heated by live steam.  The Specification as open to inspection under Sect. 91, comprises also the following subject-matter: the application of the process to the recovery of ferrous sulphate, manganese sulphate, sodium carbonate, or ferric chloride in the form of salts having a low content of water of crystallization.  This subject-matter does not appear in the Specification as accepted.
Patent GB-576260-A (GB)
Title: Electrical impact switch
IPC: H01H35/14
Filed: 1944-05-04
Abstract: 576,260. Inertia switches. SPECIALTIES DEVELOPMENT CORPORATION. May 4, 1944, No. 8450. Convention date, Aug. 27, 1943. [Class 38 (v)] An inertia operable switch comprises a contact member adapted to co-operate with a resilient member and held out of contact by the inertia operable means while the resilient member is held by stationary abutment means. As shown two resilient members 20 are connected at one end to terminals 40, their free ends being held out of contact with contact 22 by abutment 35 formed in the base, and having a guard member 42 overlying the mounted ends. The contact member is preferably carried by an arm 24 which is moved by spring means 19 on release of said inertia operable means.
Patent GB-493178-A (GB)
Title: Improvements in or relating to roofing tiles
IPC: E04D1/04
Filed: 1938-02-24
Abstract: 493,178. Roofing - tiles. RICHARDSON, S. Feb. 24, 1938, No. 8503/37. [Class 87 (i)] A cambered roofing-tile is provided at its lower edge with a projection 3 and adjacent recess 4, 5, the surface of the whole of the projection being below the general surface 7 of the tile. The surface of the recess merges into those of the projection and the rest of the tile.
Patent GB-768308-A (GB)
Title: Method of and devices for magnetically storing information
IPC: G05B19/42
Filed: 1955-03-24
Abstract: 768,308. Magnetic recording and reproducing apparatus. SOC. ANON. ASSERVELEC. March 24, 1955 [April 6, 1954], No. 8568/55. Class 40 (2). A method of recording coding frequencies and a reference frequency is characterized in that coding and reference frequencies are taken from separate magnetic records and are simultaneously recorded for subsequent use when decoding the stored information. The described embodiment is applicable to a system in which information from a computing machine is recorded on magnetic strips 1 on individual metal plates 2 of a kind usually employed in addressing machines and which bear for example on the reverse side the name and address of a client of a bank, the monetary state of whose account is to be recorded. The coder 3 consists of nine coding wheels controlled by a computing machine and carrying magnetic strips 4 of magnetic film, each having recorded thereon, longitudinal with the axis of the wheels, ten tracks of ten different frequencies corresponding to the digital values making up the composition of a number to be recorded. Disposed on a plane support parallel to plate 2 is a length of film carrying a magnetic recording of a reference frequency. A traversing bar 6 carries magnetic pick-up heads TL1 and TL2 which scan the strips 4 and 5, respectively, the signals being mixed and amplified by an amplifier 7, and re-recorded by a head TE3 on the strip 1. The information so recorded is subsequently used for operating an apparatus for printing on a docket or slip the clients name and address and a statement of account. For this purpose successive plates 2, Fig. 2, are brought under a scanning head TL4, the output from which is amplified and re-recorded on a magnetic film 8 by a recording head TE5. The re-recorded signal is picked up by a head TL7 and passed to an amplifier detector 16 which separates the coding frequencies from the reference frequency, the reference frequency being used to control the speed of the motor 13, by known means, through an assembly 19. The coding signals pass to a circuit 15 which controls the setting of nine printing wheels associated with a computing machine supplying information concerning variations in the state of the account to which the particular plate 2 corresponds.
Patent GB-526499-A (GB)
Title: Improvements in and relating to electric attenuating circuits
IPC: H03H7/24
Filed: 1939-03-17
Abstract: 526,499. Artificial lines; thermionic valve circuits. HILL, C. J. W. March 17, 1939, No. 8625. [Classes 40 (iii) and'40 (v)] In a ladder-type variable attenuator, means are provided to insert the input electromotive force in series with any of the shunt impedance arms. The Fig. shows an attenuator comprising series resistances 21 ... 24 and shunt resistances 25 ... 28 with terminating resistances 29, 30 equal to the characteristic impedance. As shown the switch arm 5 is connected to the cathode of pentode 3 and the arrangement is such that the contacts 6 ... 9 not in contact with the arm 5 are earthed. The adjustable tapping or resistance 24 provides fine adjustment, while the operation of the valve as a cathode follower ensures a high input impedance and a low output impedance. The use of a ladder attenuator enables the attenuation to be adjusted without substantially affecting the effective cathode circuit impedance of the valve, and is suitable for high frequency circuits.
Patent GB-584269-A (GB)
Title: Improved apparatus for breaking emulsions
IPC: C10G33/06
Filed: 1944-05-08
Abstract: <PICT:0584269/III/1> Emulsions, particularly waste lubricating oil, are broken in an apparatus comprising a chamber having a corrugated floor inclined to the horizontal and down which the liquid flows, heated by burners external to the chamber, the chamber being sealed by the liquid as it emerges therefrom at the lower end of the floor. The space above the flowing liquid is preferably kept filled with water vapour driven off from the emulsion.  In a preferred apparatus, the heated inclined, corrugated floor 11 is enclosed in a semi-circular chamber 12, the emulsified liquid being supplied thereto through a liquid seal 28 and the separated oil being withdrawn through a liquid seal 13 arranged between separate liquid seals through which the water condensate is withdrawn.  The liquid seals may be formed from the end corrugations of the floor in cooperation with the end walls of the chamber.  Inclined grooves are provided in the side walls of the chamber for collection of the water condensate.  The floor 11 is heated by a burner 17, disposed at its lower end, preferably using recovered oil; the flue gases heat the remainder of the floor on their way to a chimney 18.
Patent GB-717354-A (GB)
Title: Resistor protected with resin insulating material and method of making the same
IPC: H01C1/144
Filed: 1952-04-04
Abstract: 717,354. Electric resistor enclosed by moulded casing; mounting terminals. CANEGALLO, G., and S.E.C.I. SOC. ELETTROTECNICA CHIMICA ITALIANA. April 4. 1952, [Sept, 15, 1951.] No. 8701/52, Classes 37 and 38(1). [Also in Group V] The terminal leads are maintained in faceabutting contact with a resistance-coated type resistance element by a casing of natural or synthetic resin moulded around the resistance element. In Fig. 7 a tube P of synthetic resin containing the resistance element R is inserted in a tubular moulding tool O surrounded by a heating coil S. The tube P projects beyond the ends of the resistance element R and axial leads F within carriers N are inserted so as to contact the ends of the resistance element R with or without the aid of a conducting paste M. The heating coil S is operated to soften or plasticize the tube P and the terminal carriers N are pushed inwards to press in the leads F and compress the projecting parts of the tube P around the ends of the resistance element R and axial leads F. When the tube P has set in its new form the assembly is pushed out of the moulding tool O and the product comprises ,tube P moulded around and pressing the axial leads F into firm contact with the resistance element R. Prior to moulding the tube P the resistance coating may itself be coated with a protective layer of insulating varnish or lacquer either alone or mixed in suitable proportions with inert powders of iron oxide, silica or titanium dioxide. The terminal leads F may be bent or cranked, Figs. 3 and 4, or have headed ends, Figs. 5 and 6. In Fig. 2 the ends of the resistance element R are cone-shaped. The conducting paste M may consist of (i) lead or lead alloys or (ii) synthetic resins mixed with powdered metals or graphite. The resistance element R may comprise a glass, quartz or ceramic rod having e.g. a metallic coating or a cracked-on carbon coating.
Patent GB-560086-A (GB)
Title: Improvements in or relating to thrust bearings for rotary valves
IPC: F16C21/00
Filed: 1942-06-26
Abstract: 560,086. Valves. ASPIN, F. M. June 26, 1942, No. 8774. [Class 7 (vi)] [Also in Groups XXVIII and XXIX] A rotary valve has an hydraulic thrust bearing comprising a piston 13 engaged by the valvestem 11 and rotatably mounted in a cup 14 formed in the cover 15. Oil from the lubricating system is used and supplied to the cup by an annular passage 18, a passage 19 in the-spring- urged piston and a checkvalve 16. In a modification, the piston is carried in an extension of the valve stem and lubricating oil is supplied through a check-valve to a space below the piston which engages a bridge piece secured on the cylinder head. Specifications 463,412 and 511,208 are referred to.
Patent GB-396857-A (GB)
Title: Engine with rolling piston oscillating in a circle
IPC: F01C1/06
Filed: 1932-03-24
Abstract: 396,857. Rotary engines. SAUVEUR, H., 1D, Bodekerstrasse, Hanover, Germany. March 24, 1932, No. 8844. Convention date, Feb. 16. Addition to 385,797. [Class 110 (ii).] Fixed-abutment type. -A rotary engine as described in the parent Specification is modified in that the outlet ports are uncovered during a relatively small angle of rotation of the machine, additional outlet ports, which are uncovered during the remainder of an approximate half rotation, being provided to divide the fluid discharge into two portions, one of which is at high pressure and the other consists of spent fluid. Pressure fluid is supplied at an inlet 98 to a casing 100, Figs. 1 and 2, containing a gyratory disc or piston 99 with radial projections engaging in recesses in the casing, the side walls of which fit the piston closely. The inlet zone between the contact points 101, 102 serves as a motor to drive the piston, and part of the working fluid is discharged at the port 111 under a higher pressure, the remainder being exhausted at the port 116. The piston 99 may be guided by two rollers 117 on a common pin 118 against a pin 119 on a ring path 120.
Patent GB-1523659-A (GB)
Title: Method of manufacturing a nonconsumable copper-zirconium electrode
IPC: B21C23/22
Filed: 1976-03-05
Abstract: 1523659 Arc electrode INST ELEKTROSVARKI IM E O PATONA AKAD NAUK UKRAINSKOI SSR 5 March 1976 [10 March 1975] 8853/76 Heading H5H [Also in Division B3] A method of making a non-consumable copperzirconium electrode includes fitting a zirconium core into a non-annealed cold-deformed copper tube of a thickness approximately equal to the diameter of the core, cold drawing the blank so formed to form a joint between the core and tube, and fitting the blank into a copper sleeve and hot working and machining the assembly to form the electrode. The hot working is compression, finished off by drawing. The hot working temperature is between 650 C. and 750 C., the subsequent drawing gives a reduction of between 15% and 40%. Specific examples are given.
Patent GB-1245522-A (GB)
Title: Polyester textile materials and their production
IPC: D02G1/00
Filed: 1969-02-18
Abstract: 1,245,522. Polyester yarns. SOC. RHODIACETA. 18 Feb., 1969 [19 Feb., 1968], No. 8860/69. Heading B5B. [Also in Divisions D1-D2] A textile article as described and claimed in copending Specification 1,245,361 is further characterized in that all the zones in each filament have a positive degree of crystallinity. A process for making a textile article as above comprises, as the sole stretching operation, partially stretching the yarn in contact with a crack-promoting agent e.g. hydroxylated compound in an aqueous solution or an aqueous lower alcohol, and subjecting the stretched yarn to a relaxation treatment in at least two stages, at least the last of which is accompanied by a heat treatment. In a preferred embodiment yarn 3 is fed from a bobbin 2 on a creel 1 by means of feed rollers 4, 5 and passed through a vat 7 containing the crack-promoting agent. During passage through the vat the yarn is stretched by means of rollers 8, 9 rotating at a faster peripheral speed than the rollers 4, 5. From the rollers 8, 9 the stretched yarn passes a heater 12 and a first set of relaxation rollers 10, 11, before passing to a second heater 13 and a second set of relaxation rollers 14, 15 and being wound at 16. Each relaxation stage is preferably accompanied by a heat treatment, the last such heat treatment preferably being a shock heat treatment. At some stage after the stretching the yarn may be dyed. In a preferred embodiment, a polyethylene terephthalate multifilament yarn is stretched in an aqueous bath containing 25% ethanol at ambient temperature and is then relaxed to various degrees at various temperatures of the plate 12. The yarn is thereafter heat treated in a completely relaxed state by immersing it in water at 40‹ C., progressively raising the temperature of the water to 100‹ C. and keeping the yarn at this temperature for 5 minutes. The yarn is then dried without tension while freely exposed to the air and then heated in an oven for 5 minutes at 180‹ C.