baber/WOPTO huggingface dataset:
Patent GB-1522423-A (GB)
Title: Steering column lock for vehicles
IPC: B60R25/021
Filed: 1976-06-08
Abstract: 1522423 Steering lock HANS KOLB GmbH & CO 8 June 1976 [11 June 1975] 23578/76 Heading E2A A steering column lock comprises a casing 1 in which is mounted a barrel lock 2 which controls a sliding bolt via control cam 3. The sliding bolt is made of separate portions 4, 5 mechanically interlocked. A compression spring 9 which abuts the casing 1 and the rear end of the locking portion 4, by extending through the control portion 5, serves to urge the bolt into the locking position. As the control portion 5 is always in contact with the control cam 3, the play between the locking portion and the control portion is eliminated. A spindle 6 on the control cam 3 passes through the bolt and controls an electrical switch.
Patent GB-588726-A (GB)
Title: Improvements relating to motive power for vehicles
IPC: B62D57/04
Filed: 1944-11-27
Abstract: 588,726. Motor vehicles; motive power. BRAKEFIELD, W. Nov. 27, 1944,' No. 23617. [Class 79 (iii)] An apparatus for the propulsion of vehicles comprises an electric motor or other prime mover 3 which drives a crank rod 6 to reciprocate the flywheel 7, the latter having attached thereto a pinion 8 which meshes with a movable rack 10 and a fixed rack 9, whereby when the flywheel is displaced it is caused to rotate; movement of the flywheel beyond its mean position in one direction is resisted by the spring 12 acting on rod 11 connected to the flywheel centre and in the other direction by spring 14 acting on the rack 10. The springs may be replaced by pistons working in stationary cylinders. Although there is no connection between the prime-mover 3 and the wheels 2 it is stated that when the mechanism is working the vehicle progresses in one direction.
Patent GB-599105-A (GB)
Title: Improvements relating to perambulator hood stays
IPC: B62B9/14
Filed: 1945-09-13
Abstract: 599,105. Stays for hinged articles ; hinges. RICHARDS, O. O., and RICHARDS, O. L. Sept. 13, 1945, No. 23644. [Classes 65 (i) and 65 (ii)] [Also in Group XXXII] A perambulator hood or other stay comprises arms a, b having disc-shaped ends pivoted together by a rivet c. An arcuate slot d is formed in the disc on the arm a through which passes a bolt e having a square shank to prevent rotation therein. The bolt passes through an intermediate washer i and through the disc on the arm b, a thumb nut h clamping the discs together in an adjusted. position of the stays. A spring washer g may be placed under the head of the bolt and a cover-plate j may be secured to the discs by the rivet c. Specification 25028/05, [Class 65], is referred to.
Patent GB-1389307-A (GB)
Title: Method of and a device for measuring linear and angular  displacements
IPC: G01D5/38
Filed: 1972-05-19
Abstract: 1389307 Measuring displacement photoelectrically INSTYTUT ELEKTROTECHNIKI 19 May 1972 [20 May 1971] 23671/72 Heading G1A A displacement measuring system comprises a fine and a coarse channel in each of which displacements are transduced into light signals and then into rectangular pulses which are counted, the fine channel counter being reset to an initial value whenever a unit of displacement is counted in the coarse channel. This ensures that errors in the fine channel produced by spurious or missing pulses are not accumulated. The transducer, Fig.1, comprises a light source 10 illuminating moving gratings 1, 3 short fixed  gratings 2, 4 being used to produce Moire fringes which are detected by a lens 12 and four photodetectors 5,6,7,8. The upper gratings 1, 2 form a coarse measurement system the fringes from which are received by detectors 5, 6 in a quadrature relationship. Similarly detectors 7,8 produce quadrature related signals from a fine measurement system using the lower gratings 3, 4. In a second arrangement, Fig.4 (not shown) the position of a carriage driven by a lead screw is determined by a linear grating arrangement producing a coarse measurement and a rotary grating arrangement, driven by the lead screw, producing the fine measurement. In a third arrangement, Fig.5 (not shown) the coarse and fine gratings are provided concentrically on a single rotatable disc. In the processing circuit, Fig.6, the light inputs to the coarse and fine detector systems 20, 21 are converted to electrical signals which are amplified and squared (22,23,24,25) to produce quadrature related rectangular pulses. These pulses are applied to circuits 26, 27 for determining the direction of the displacement and for producing needle pulses which are applied to the inputs of coarse and fine bi-directional counters 32, 33. The counting direction is determined by a control circuit 30 receiving inputs from the direction detectors 26, 27 and from a sign detector circuit 31 whose state changes when the coarse displacement passes through zero. The fine counter is provided with an overflow lock-out circuit 36 which prevents fine pulses from incrementing the counter when it has reached its maximum count and from decrementing the counter when it is at zero. The coarse pulses are also used to reset the fine counter but in the count-down mode lock-out circuit responds to the coarse pulses to set the fine counter to its maximum value. A circuit 28 is also provided which indicates by means of a lamp 47 that the displacement is less than one fine interval from a coarse position and this is a permissible datum from which measurements can be taken. Operation of a push button 48 resets the coarse counter to zero at the desired datum position. The outputs of the coarse and fine counters and the sign detector circuit 31 are applied to a digital display unit 34.
Patent GB-813447-A (GB)
Title: Improvements in thermoplastic resinous compositions
IPC: C08L27/06
Filed: 1955-08-17
Abstract: A thermoplastic synthetic resin composition comprises a homogenous mixture of 100 parts of a vinyl halide polymer of a monomeric material in which each constituent contains a single olefinic double bond and in which the predominant monomer is a vinyl halide, with hard, tough interpolymers of a monoolefinic mixture comprising 50 to 90 per cent by weight of a monomer consisting of styrene, alphasubstituted styrenes or nuclear-substituted styrenes and 10 to 50 per cent by weight of a monomer copolymerizable therewith consisting of acrylonitrile, methacrylonitrile, ethacrylonitrile, chloroacrylonitrile or alkyl methacrylates, the hard, tough interpolymer containing not to exceed 20 per cent by weight of other polymerized monoolefinic monomers, the composition containing from 1 to 40 parts by weight of hard, tough interpolymer, and from 1 to less than 5 parts by weight of iron oxide, particularly ferric oxide, based on the weight of the polymers.  The composition may also contain from 1 to 25 parts by weight, based on 100 parts by weight of the above polymers, of a rubbery interpolymer of a monomer mixture comprising 50 to 90 weight per cent of a 1,3-butadiene hydrocarbon, 5 to 30 weight per cent of an acrylonitrile and 5 to 30 weight per cent of at least one other monoolefinic monomer copolymerizable with the 1,3-butadiene hydrocarbon and acrylonitrile, such as styrene or an alkyl acrylate or methacrylate.  The composition may contain other ingredients such as basic lead carbonate, lead silicate, calcium silicate, calcium stearate, clay and carbon black.  The compositions may be used to produce construction materials such as slabs, sheets and pipes. Specifications 705,021, 745,118, 745,119 and 769,820 are referred to.
Patent GB-732796-A (GB)
Title: Ethylation of olefins
IPC: C07C2/30
Filed: 1952-09-23
Abstract: Ethylated olefines are prepared by reacting ethylene with an acyclic olefine containing an a -allylic hydrogen atom at a temperature of 50-250 DEG  C. and a pressure of 10 to 200 atmospheres in the presence of an organo-alkali metal catalyst. The expression "a -allylic hydrogen atom" denotes a hydrogen atom directly attached to a carbon atom bonded to other atoms by single bonds only and which is alpha to a carbon-to-carbon double bond.  Specified acyclic olefines include propylene and various butenes, pentenes, hexenes, heptenes, octenes, nonenes, decenes, undecenes and dodecenes or mixtures thereof.  Isomerization of the acyclic olefines may occur during the reaction.  The proportion of ethylene is normally such as yields mono-ethylated olefines.  The process is preferably carried out under substantially oxygen-free conditions and may be operated batchwise or continuously and in liquid or vapour phase: inert solvents or gases may be present. Specified catalysts include aryl-, alkyl- and alkenyl-sodium, potassium, lithium, rubidium and cesium compounds. In an example hexene-1 is heated in an autoclave with ethylene in the presence of sodiohexene-1 and hexane diluent yielding a mixture of octenes.
Patent GB-1527567-A (GB)
Title: Resettable thermal safety switch
IPC: H01H37/54
Filed: 1977-06-08
Abstract: 1527567 Thermal switches MICROTHERM GmbH 8 June 1977 [30 June 1976] 23886/77 Heading H1N In a resettable thermal safety switch having a snap acting bimetallic disc 22 for lifting (via a diagonally disposed plate 35) a bridging contact 23 from a pair of stationary contacts 29 at a predetermined temperature, the resetting means comprises a manually accessible outer member, e.g. a rubber cap 40, which transmits movement to a resetting plunger 33 via yieldable means 32, e.g. a coil spring, whereby the switch can only be reset if the temperature of the bimetallic disc 22 is below its operating temperature and the switch is not prevented from opening should the outer member 40 be depressed when the operating temperature is reached.
Patent GB-1141445-A (GB)
Title: Cyanocyclobutane polymers and a process for producing them
Inventor: HALL HENRY KINGSTON
IPC: C08G61/06
Filed: 1967-05-23
Abstract: 1,141,445. Cyclobutane derivatives. E. I. DU PONT DE NEMOURS & CO. 23 May, 1967, No. 23918/67. Heading C2C. [Also in Division C3] 3-Cyanocyclobutanones of formula where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen atoms or hydrocarbyl radicals having 1 to 18 carbon atoms and free of aliphatic carbon-to-carbon unsaturation, are reduced to 1 - cyano - 3 - hydroxycyclobutanes of formula which are then converted to compounds of formula where X is chlorine, bromine, iodine, benzenesulphonyl, parabromobenzenesulphonyl, paratolylsulphonyl or trimethylamino, which are then reacted with bases to obtain 1-cyanobicyclo[1.1.0]butanes of formula which may be used to obtain polymers. Examples are given.
Patent GB-599357-A (GB)
Title: Improvements in the manufacture of pentaerythritol
IPC: C07C31/24
Filed: 1945-09-17
Abstract: Pentaerythritol is produced from formaldehyde and acetaldehyde in the presence of a strongly basic hydroxide by employing at least 5 moles, and preferably at least 7 moles, of formaldehyde per mole, acetaldehyde and sufficient hydroxide to leave an excess on the disappearance of the acetaldehyde, maintaining the reaction mixture at a temperature not exceeding 33 DEG  C. until the disappearance of the acetaldehyde and then, still at a temperature not exceeding 33 DEG  C., removing its free alkalinity, preferably by adding sufficient of an acid, e.g. sulphuric or formic acid, to render the solution only slightly acid to an indicator changing colour at about the same acidity as Methyl Red.  The unreacted excess of formaldehyde may then be stripped from the reaction mixture, preferably by steam distillation at ordinary or increased pressure.  The pentaerythritol may then be recovered in known manner, for instance, when calcium hydroxide has been used, as is preferable, by addition of sufficient sulphuric acid to liberate the formic acid from the calcium formate in the solution, filtration from calcium sulphate, treatment with witherite to convert the calcium sulphate remaining in solution into known sulphate and calcium formate, further filtration and evaporation under reduced pressure.  In examples: (1) formaldehyde and later acetaldehyde are added to a slurry of hydrated lime and water, the rate of addition of the acetaldehyde solution being such that the reaction temperature remains at or below 30 DEG  C.  After adding all the acetaldehyde the mixture is stirred and then cooled to 20 DEG  C. when sulphuric acid is added to render the liquor acid to methyl red.  The calcium sulphate is filtered off and after steam distillation to remove formaldehyde the pentaerythritol is recovered as above, ammonia being added to the filtered liquor before evaporation to convert any residual formaldehyde into hexamethylene tetramine; (2) as in (1) but using a molar formaldehyde: acetaldehyde ratio of 8 to 1.
Patent GB-1476641-A (GB)
Title: Zirconium phosphate product
IPC: C01B25/37
Filed: 1974-05-30
Abstract: 1476641 Zirconium phosphate CCI LIFE SYSTEMS Inc 30 May 1974 23942/74 Heading ClA Particulate zirconium phosphate is produced by incorporating particles of a water-soluble zirconium compound (e.g. the oxychloride, acetate, nitrate, sulphate or basic sulphate) into an aqueous phosphate solution (e.g. phosphoric acid, sodium phosphate or sodium hydrogen phosphate) of concentration at least 0À5 M, allowing the components to react and recovering the particulate zirconium phosphate. Preferred particle size for the starting zirconium compound is 12 to 325 mesh Tyler. The product may be used as an ion-exchange material.
Patent GB-170446-A (GB)
Title: Improvements in and relating to bridges, dock and canal gates and the like
IPC: E01D15/10
Filed: 1920-08-17
Abstract: 170,446. Galbraith, J. Aug. 17, 1920. Lock and dock gates.-Dock and canal gates g are opened by moving them into the spaces vacated by previously moving end sections i parallel to the bank into spaces i<1>, and are held in the closed position by interlocking each other and bearing against the sections i.
Patent GB-150281-A (GB)
Title: Improvements in and relating to shoulder straps
IPC: A41F3/00
Filed: 1920-08-17
Abstract: 150,281. Marks, H. S. Jan. 16, 1917, [Convention date]. Braces and straps and bands; abdominal belts. - Shoulder - straps 6 are crossed at the back and adjusted by buckles 10 on a belt, which in the form shown is for female wear, and may have elastic bands 14, reinforcing-strips 5, and suspenders 4. For men's wear the belt may have tab ends.
Patent GB-702124-A (GB)
Title: Improvements in and relating to geiger muller tubes
Inventor: PRESSEL OTTO
IPC: H01J47/08
Filed: 1952-09-24
Abstract: 702,124. Geiger counters. MULLARD RADIO VALVE CO., Ltd. Sept. 24, 1952, No. 23974/52. Class 39(1) [Also in Group XVII] A Geiger-Muller tube is mounted within a hermetically sealed thin walled metal container for storage or transport purposes and electrical connections are provided from the anode and cathode of the tube to the outside of the container so that the tube can be tested or used for the measurement of high energy radiation while still within the container. The tube 1 comprises a cathode portion 2 and an anode portion 3, carrying the conventional central electrode, supported within an aluminium canister 5 by sponge rubber rings 7 and 8. The cathode portion 2 is provided with a mica window protected by a rubber cap 4 which is removed when the tube is taken out of the canister and used for the measurement of low energy radiation. A wire 18 is wrapped round the cathode and is held against the inside of the canister by a sponge rubber disc 6. The canister is closed by spinning the edge 11 over an insulating disc 10 which together with a sealing ring 12 rests against a shoulder 9. A metal member 13 passes through the insulating disc 10 and bears against the end surface of the anode 3, sealing being effected by a packing ring 16 compressed by the action of a clamping nut 15 and washer 14. A nut 17 serves for securing a connecting lead to the member 13. A groove 19 is provided in the side wall of the canister so that the base can be readily removed by cutting with a penknife.
Patent GB-646719-A (GB)
Title: Improvements in or relating to a method and installation for producing large quantities of cold air
IPC: F24F3/14
Filed: 1947-08-29
Abstract: 646,719. Refrigerating; drying air and gases. JAUBERT, G. F. Aug. 29, 1947, No. 24005. Convention date, Dec. 18, 1939. [Classes 29 and 34(i)] A process for producing cold air comprises compressing the air by a compressor 1, cooling it in a unit 4, drying it in one of the driers 5, 6 while the other is being regenerated by heat, cooling it in a unit 15 which may be the evaporator of a refrigerating machine and expanding it in a turbine motor 9 assisting the motor 2 of the compressor 1. The driers are constructed as a series of superposed annular chambers having mesh walls, each chamber being packed with absorbent known as "Carbogel." The air enters the centre of the anuli from a bottom opening and leaves by a peripheral passage leading to a top opening. Regeneration of the absorbent is effected by passing air through the dryer in the reverse direction after heating in a unit 12. Valves are provided to direct the air to the appropriate dryer. The compressor compresses the air to an effective pressure of 2 to 3 kilogrammes per square centimetre. Part of the air from the driers may be super-compressed, cooled and expanded in a piston motor and then mixed with the air from the motor 9. The Specification as open to inspection under Sect. 91 describes a process (Fig. 3, Cancelled) in which air is compressed by compressor 21, cooled in a unit 25, dehydrated by cold brine in a heat-exchanger 26 fitted with a drain 39, cooled in a unit 29, expanded in a motor 30 and led off for use by a conduit 31. Part of the expanded air is led by a pipe 35 to cool brine in a tank 34 and is led back to the conduit 31 by a pipe 37. The cold brine is circulated by a pump 33 between the exchangers 26 and 34. Valves 32, 36, are provided in the pipes 31, 35 respectively. In a modification (Fig. 4, Cancelled), air is compressed in the motor-compressor-expander unit 41, cooled by ambient air in an exchanger 43, cooled by water in a unit 44, separated from oil &c. in a unit 45, dried by granular absorbent in a unit 46, cooled by water in a unit 47, cooled by expanded gas in an exchanger 48, dried by granular absorbent in a unit 49 and expanded in the unit 41. Part of the expanded air is diverted to cool the exchanger 48. Air warmed in the exchanger 43, is further heated by an electric heater 51 and is then used to regenerate absorbent (Carbogel, silicagel or alumina) in the dehydraters 46, 49. This subjectmatter does not appear in the Specification as accepted.
Patent GB-648449-A (GB)
Title: Improvements in saws
IPC: B27B33/02
Filed: 1949-09-19
Abstract: 648,449. Saws. MATTSON, J. G. Sept. 19, 1949, No. 24066. Convention date, Sept. 22, 1948. [Class 145(ii)] In a saw provided with both rip and crosscut teeth the arrangement is such as to provide a series of blocks B, separated by slots C, with each block having a rip tooth D a crosscut tooth E with the rip tooth leading and with the teeth on each block bevelled and set on opposite faces of the saw blade and with the rip tooth D of one block being bevelled and set on the same face as is that of the cross-cut tooth E of the block immediately preceding it. The blocks and teeth thereon may be arranged to incline forwardly.
Patent GB-406662-A (GB)
Title: Improvements in mechanical toys
IPC: A63H17/16
Filed: 1932-08-29
Abstract: 406,662. Toys. CARPMAEL, M. H., 24, Southampton Buildings, Chancery Lane, London.-(Marx & Co., Inc., L. ; 200, 5th Avenue, New York, U.S.A.) Aug. 29, 1932, No. 24117. [Class 132 (iii).] The device represents a figure propelling a three-wheeled vehicle comprising a two-wheeled power-driven chassis having pivoted to it a trailer frame, the figure being rockably mounted on the frame and the driving mechanism causing the swinging of the trailer about its pivot to steer the device in various directions. Clockwork 2 mounted on the chassis 1 drives a running wheel 4 through a crown-wheel 15 and pinion 16. The trailer frame 8 is pivoted at 7 to the chassis 1 and has an extension 12 provided with a cam 13 engaging a crank 14 secured to the crown-wheel 15, the trailer frame being thus rocked about its pivot 7 against the action of a spring 18. The crank 14 also actuates a spring-controlled lever 22 which strikes a bell 21. The figure 25 has movable arms and legs, the latter being pivoted to cranks 29 driven by a chain 31 from the trailing wheel 10. The figure is also pivoted about a horizontal L- shaped bar 33 and its arms are loosely mounted on a bar 28. The bar 33 is pivoted at 11' in the frame 8, whence, as the trailer frame swings about the pivot 7, the figure 25 rocks from side to side about the axis 33 and 11<1>.
Patent GB-245529-A (GB)
Title: Improvements in or relating to metal-clad electric switchgear
IPC: H02B13/02
Filed: 1924-10-11
Abstract: 245,529. Reyrolle & Co., Ltd., A., and Mirrey, J. Oct. 11, 1924. Switchboards and like switchgear structures. In metal-clad switchgear of the horizontal draw out type for use with duplicated bus-bars, the busbar selecting switch or equivalent plug arrangement is permanently mounted within the movable part of the casing and is operated wholly from outside the casing. In the construction shown in Fig. 1, the inner ends of the isolating plugs B, B' on the sliding carriage are provided with contacts B<2>, B<3> with one or both of which a switch member D may be brought into engagement by external hand-operated worm gear acting through links H<1>, H, F and E. An earthing contact J may be provided within the casing with which the contact-member D may be brought into engagement. The selector switch is interlocked with the oil switch or the sliding carriage by means, for example, of a lock K<1> serving to prevent movement of the linkwork operating mechanism and controlled by an electromagnet K the energizing circuit of which includes the auxiliary plugs L on the sliding carriage. In a modification shown in Fig. 3, two contact arms D', D' are employed and are operated in the desired sequence and to the necessary relative extent to produce the selective bus-bar and earth connections desired. The contact arms are each connected through separate links D<4> to separate slotted members D', D' which are driven by pins R' on the externally-rotated shaft. Two earthing contacts J<1>, J<2> are provided in this form. Instead of contact-members of the knife-blade type, centrally carried rectilinearly-sliding or rotating contact-members may be used. In the construction shown in Fig. 8, contact-members D<19>, D<20> of plug form sliding in sockets in a member D<24> connected with one pole of the oil switch are moved alternately into engagement with one or other of the bus-bar contacts B, B<1> by means of a pinion D<23> externally operated and engaging racks D<21>, D<22>.
Patent GB-1190415-A (GB)
Title: Landline Facsimile System
IPC: H04N1/00
Filed: 1967-05-24
Abstract: 1,190,415. Signalling over exchange circuits. XEROX CORP. 24 May, 1967 [26 May, 1966], No. 24127/67. Heading H4K. To prevent interference with exchange functions controlled by particular frequencies, those frequencies are deleted from the range employed in a facsimile transmission system. The tonal frequencies from a facsimile transmitter are produced by a voltage controlled oscillator. When the control voltage increases so as to enter a forbidden zone the tone frequency generated by the oscillator is clamped at its lower value on entering the zone and jumps to its proportional value when the voltage exits from the other side of the zone. The clamping action may be delayed until the signal has been in the forbidden zone for a given time and such a delay may apply only to positive excursions of the control signal.