baber/WOPTO huggingface dataset:
Patent GB-159165-A (GB)
Abstract: 159,165. Bosch Akt.-Ges., R. Feb. 19, 1920, [Convention date]. Magneto-electric machines.-In high-tension devices having a spark-gap for use with internalcombustion engines having a spark-gap inserted in series with the plug, the spark-gap resistance is arranged so as to be less at starting by suitably shaping the spark-gap electrodes. Fig. 1 shows the distributor of a magneto, the stationary disc d having electrodes c1 - - c4, the faces of which are eccentric to the path of revolution of the rotating pointed electrode. Fig. 4 shows the gap inserted between the collector ring and the electrode k, the ring h being adjustable relatively to the armature so that the resistance of the gap between the electrode k and the ring h may be varied. Adjustment may be effected by coupling to the contact-breaker timing element or to another adjustable element of the engine.
Patent GB-571063-A (GB)
Title: Improvements in or relating to poultry appliances
IPC: A01K39/014
Filed: 1943-09-28
Abstract: 571,063. Poultry appliances. ELT, Ltd., G. H., and ELT. G. H. Sept. 28, 1943, No. 15936. [Class 5 (ii)]. [Also in Group XXV] Closures for poultry houses, troughs, hovers and the like 4 consist of a flap 6 pivoted to a rail 10. having arms 7 pivoted in brackets 9. The arms 7 are sloped or bent to retain the flap in its raised position, or the flap may be formed with one or more projections below the rail 10, the arrangement being such that the arms have to be lifted before the flap can be moved.
Patent GB-1435603-A (GB)
Title: Method and apparatus for synchronizing the reading of photo graphic records of digital informatio
IPC: G11B20/10
Filed: 1973-04-03
Abstract: 1435603 Recording and playback systems BATTELLE DEVELOPMENT CORP 3 April 1973 15988/73 Heading G4M The Specification describes the recording and playback system of Specification 1,302,368 and the photographic record of Specification 1,302,369 and describes a further means of synchronizing during read-out to ensure that the words read out contain the bits in the same locations as the words recorded. Data may be stored in lines on a document which is scanned by the reader. The first bit on each line is arranged to be a "1" and is used after detection of the retrace period of the scanner to resynchronize a clock oscillator and a word sync. counter (Fig. 7, not shown). Alternatively a special word, e.g. all "1's" may be periodically added to the data and recognized to reset a word sync. counter to zero. Or a specific bit position in a word may contain a specific value and that location in each word is sampled for the value. If the sampled value is incorrect a clock pulse to the word sync. counter enabling the sampling operation is inhibited to sample the next bit until the correct value is found. Alternatively the rates of change of two adjacent bits may be determined and compared to inhibit a clock pulse if an incorrect value is obtained. An analog input signal may carry a signal of a given frequency which is filtered out and digitized. If incorrect sync. is obtained the frequency value will be a factor of 2<SP>n</SP> wrong and the sync counter is altered to produce the correct value. The rate of change of particular bits may be monitored. The bits may change randomly or one may be changed at a predetermined rate. Parity of the words may be changed and a repeated parity error may indicate incorrect sync. Sync. spots of specific shapes may be arranged on the record to be detected through appropriate masks or sync. marks may be in a separate track or at different depths on a multi layer recording or of different colours to data markings.
Patent GB-591814-A (GB)
Title: Improvements in or relating to the operation of the tools of gear cutting machines
IPC: B23F5/14
Filed: 1944-08-22
Abstract: 591,814. Gear-cutting. AEPPLI, A. Aug. 22, 1944, No. 16021. Convention date, July 30, 1943. [Class 83 (iii)] In a gear-cutting machine of the kind in which the tool is reciprocated relatively to the work whilst the latter rotates continuously so that the tool enters different tooth spaces at each reciprocation, one or more rotating cams are provided on the tool ram to relieve the tool on the idle strokes and restore the cut on the working strokes, the tool holder being brought into engagement with an abutment on its carrier by the cutting action of the tool. The tool may be a rack-type planing cutter or a grinding disc having a cross-section representing a rack tooth. In a planing machine, the rack cutter 130 is carried by a clapper box 129 pivoted at 131 on a head 128 which is angularly adjustable about a shaft 112 on the ram 115 to give the correct resultant motion between the tool and work depending on the rotation of the work and the helix angle of the teeth thereon. A shaft 135 journalled in the head 128 carries a cam 136 on each end engaging a roller 137 on the box 129 and is rotated one revolution for each reciprocation of the ram so that on the upward stroke the box will be rocked away from the work against the action of a spring 139. On the downward stroke the cams rock the box until a stop surface 100 thereon is just clear of the head 128, this clearance being taken up when the tool engages the work. The shaft 135 is driven by spur gears 133, 134, shaft 132, bevel gears 111, splined shaft 109, spur gears 107, bevel gears 104 and shaft 103 driven from the ram-reciprocating shaft 141 either directly or through gears. The gear 133 is removable from its shaft to allow rotation of the cams independently of the central driving gear 113 in order that the box 129 may be rocked at each end of the stroke irrespective of the angular adjustment of the head 128 on the ram 115. The edge cams 136 may be replaced by a cam disc having a continuous groove engaging a roller on the box 129. The main shaft 141 carries two opposed involute cams 117, 118 for reciprocating the tool at a uniform speed during the cutting stroke, the cams acting on rollers 119 mounted on a slide 116 movable in guides on a member 102 which is angularly adjustable about the shaft 117 on the standard 101 of the machine. A rack 121 on the slide 116 rotates a shaft 124 on the member 102 carrying a pinion 125 engaging a gear 126 attached to another gear which meshes with a rack on the tool ram 115.
Patent GB-932072-A (GB)
Title: Method for polymerizing olefins and catalyst composition therefor
IPC: C08F10/00
Filed: 1961-05-03
Abstract: Olefins may be polymerized in the presence of catalyst compositions comprising (a) a substance of formula MeO2.(P2O5)x where Me is titanium, zirconium, hafnium or thorium, and x is a number not more than 2.0, and (b) at least one metal hydride or organometallic compound of alkali metal, alkaline earth metal, rare earth metal, zinc, cadmium, mercury or aluminium, or a hydride or alkyl compound of boron.  Preferably component (a) is calcined or treated with hydrogen at elevated temperature before use.  Specified monomers are ethylene, propylene, 1-butylene, isobutylene, 1-pentene, styrene, a -methylstyrene, butadiene, isoprene and mixtures.  The catalyst may also comprise sodium methoxide, potassium ethoxide or aluminium ethoxide, and may be supported on an inert carrier, e.g. silica, alumina, silica-alumina or clay.  The polymerization may be effected in the presence of an inert solvent or diluent, e.g. butane, pentane, hexane, heptane, isooctane, cyclohexane, methyl cyclohexane, benzene, toluene, xylene, tetralin, decalin, chlorobenzene or chloronaphthalene, and the polymerization system may be irradiated with ionizing radiation during or after contacting the monomer and catalyst.  The polymerization may be effected continuously with the catalyst in the form of a fixed, movable or fluidized bed or a slurry.  The catalyst residues may be decomposed with hydrochloric acid and methanol.  Many suitable catalyst components are listed and examples describe the polymerization in n-heptane of ethylene using (1 to 4) titanyl pyrophosphate and triethyl aluminium, (5) titanyl pyrophosphate and lithium aluminium hydride, (6) titanyl pyrophosphate and calcium hydride, (7) titanyl pyrophosphate, triethyl aluminium and gamma ray irradiation, (8 and 9) zirconium pyrophosphate and triethyl aluminium, and (10) thorium orthophosphate and triethyl aluminium; of propylene with triethyl aluminium and (11) titanyl pyrophosphate and (12) zirconium pyrophosphate; and of isoprene with (13) titanyl pyrophosphate and triethyl aluminium.  The polyisoprene obtained is liquid and contains predominantly cis- and trans-1,4 structure in equal proportions.
Patent GB-1472311-A (GB)
Title: Artificial joints
IPC: A61L27/10
Filed: 1974-04-11
Abstract: 1472311 Hip-joint prostheses FELDMUHLE ANLAGENUND PRODUKTIONS GmbH 11 April 1974 [12 April 1973 (2)] 16118/74 Heading A5R A hip-joint prosthesis comprises a socket member 14 having a generally concave-hemispherical front surface and a rear surface 3 provided with a screw thread 4" whereby it may be screwed self-tappingly into a patient's ilium 13, and a cooperating ball member 10 having a generally part-spherical front surface and a recessed rear surface shaped to fit over the machined head 18 of the patients' femur 1, the recess having a screw thread 4' whereby the ball-member may be screwed self-tappingly onto the head of the femur, at least the superficial parts of the ball and socket members consisting of sintered aluminium oxide having a purity greater than 99%, a density greater than 3.9 g/cm<3> and a mean grain size below 10 Ám. The aluminium oxide has been sintered above 1700‹C. The ball member and/or the socket member is/are internally reinforced by metal. The socket member may accommodate one or more countersunk screws 15.
Patent GB-497221-A (GB)
Title: Improvements relating to spinners for airscrews
IPC: B64C11/14
Filed: 1937-06-10
Abstract: 497,221. Airscrews. DE HAVILLAND AIRCRAFT CO., Ltd., and THOMAS, F. M. June 10, 1937, No. 16135. [Class 114] An airscrew spinner having two internal mounting diaphragms secured on either side of the hub is arranged with one diaphragm secured to the airscrew shaft or other rotating part not directly supporting the blades against centrifugal load while the other diaphragm is supported radially by the airscrew hub through coaxial circular surfaces with interposed packing which is unresistant in torque. The shell 1 has a diaphragm 2 with, at its inner portion, a flanged member 3 carrying a rubber or like packing 4 between it and a circular flange 5 supported by the hub bolts. At the rear the shell has riveted to it a diaphragm 11 which with an inner flange piece 12 is secured to a collar 13 which is keyed at 14 to the hub 15. The diaphragms may be provided with openings 19 both for ventilation and access purposes and for the supply of de-icing fluid. The nose of the spinner is completed by a rubber cap 1B. Specification 497,220 is referred to.
Patent GB-264731-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B9/00
Filed: 1925-12-23
Abstract: 264,731. Macintosh Cable Co., Ltd., and Williams, A. W. Dec. 23, 1925. Cores for cables; cables, arrangement and disposition of parts of; cables with auxiliary conductors.-Relates to electric cables of the kind comprising a plurality of insulated conductors, and consists in the provision of an earth core comprising an inner conductor 3a, Fig. II., and an outer metal sheath 3<c> insulated therefrom and adapted to constitute therewith a closed earthing circuit. Preferably the outer metal sheathing consists of a series of cords, each formed of twisted wire strands, helically twisted in one direction about the insulations 3<b> of the inner conductor. The sheath of the earth core may be in electrical contact with one or more of the power cores. In the arrangement shown in Fig. I. the power cores 2 are of dual construction, comprising an insulated inner conductor and outer metal sheath, and the earth core 3 is disposed centrally with its sheath in contact with the sheaths of all the power cores. Cushioning pads 4 may be disposed between the power cores. The application to systems of the kind described in Specification 209,831, [Class 38 Electric switches &c.], is referred to.
Patent GB-281351-A (GB)
Title: Manufacture of artificial materials from viscose
IPC: D06M11/55
Filed: 1926-06-29
Abstract: 281,351. Lilienfeld, L. June 29, 1926. Addition to 274,521. Cellulose xanthates, processes for making filafents from.-The process of the parent Specification is modified when employing viscoses containing not more than 5 per cent of caustic soda, by using a coagulating bath containing not less than 45 per cent but less than 55 per cent of sulphuric acid. Such viscoses are obtained by dissolving the sulphidized mass in water or in weak caustic soda solution. The alkali cellulose used may be matured for a normal time, or for a shorter time or not at all. In examples, the baths used are :-45 per cent sulphuric acid, 50-54 per cent sulphuric acid, 50 per cent sulphuric acid to which ammonium sulphate and a small proportion of strong sulphuric acid have been added, and 52 per cent sulphuric acid containing glucose.
Patent GB-852595-A (GB)
Title: Production of dinitrosoanilines
Inventor: D AMICO JOHN JOSEPH
Filed: 1958-05-22
Abstract: N,C-dinitroso-N-substituted anilines, where the N-substituent is an aliphatic or cycloaliphatic hydrocarbon residue which may contain halogen substituents, are prepared by gradually reacting a C-nitroso-N-substituted aniline with nitrous acid in a cooled aqueous medium in the presence of a mineral acid present in such an amount that there is not more than 0,4 moles present per mole of C-nitrosoaniline used, at the end of the nitrosation.  In the preferred form, the process comprises adding gradually a molecular proportion of an alkali metal nitrite to a cooled solution of the N-substituted aniline in alcoholic hydrogen halide, adding water to the resulting mixture, reducing, if necessary, the amount of hydrogen halide present to an amount which does not exceed that required to liberate an additional mol. of nitrous acid from an alkali metal nitrite by more than 0,4 moles per mole of aniline used and then gradually adding a second mole of alkali metal nitrite to the cooled reaction mixture.  The reaction preferably takes place in methanolic hydrogen chloride using sodium nitrite and 4 mols. of acid per mol of aniline used and reducing the amount of acid prior to the second nitrosation step to about 1,3 mols by the addition of an alkali metal hydroxide, carbonate or bicarbonate.  The hydrocarbon substituent on the aniline reactant preferably contains up to 6 carbon atoms and may be a methyl, ethyl, propyl, isopropyl, butyl, isobutyl, b -chloroethyl, cyclohexyl, allyl or 2-chloroallyl group.  An example is given starting from methyl aniline and the effect on the yield of the final excess of acid illustrated using methyl and ethyl aniline.
Patent GB-472430-A (GB)
Title: Closure member for pressure gas pipes, pressure gas containers and so forth
IPC: F16K39/04
Filed: 1936-06-12
Abstract: 472,430. Controlling motor vehicles. OETIKER, E., (trading as OETIKER & CO. MOTORWAGENFABRIK). June 12, 1936, No. 16480. Convention date, June 13, 1935. [Class 79 (v)] [Also in Groups XXIX and XXVII] In a closure member for pressure-gas pipes and containers and which may be mounted on the exhaust pipe of vehicle engines to enable the engine to be used to brake the vehicle, a main valve 1 controlling a passage 12, which may be the exhaust passage of an engine, and an auxiliary valve 2 controlling a by-passage 21 are enclosed in a casing 10 and move over a face 20, Fig. 1, and are interconnected by linkwork 5, 6, 16 in such manner that the main valve is moved only after it is relieved of gas pressure or before it is loaded. An arm 16 rigid with an actuating spindle 14, which may be connected to a foot brake pedal, is slotted at its outer end 17 to accommodate a bush 18 in which the valve 2 is rotatably mounted. A link 5 connects the main and auxiliary valves and the main valve is further pivotally connected to a bush 3 around the spindle 14 by a link 6. If the valves are open, then, in closing, the valves 1 and 2 move simultaneously, the bush 18 being prevented from moving to the outer end of the slot 17 by a curved guide bar 23. When the valve 1 reaches closed position, a projection on the link 6 engages a stop. Thereafter, lost motion between the valve 1 and the arm 16 allows the said arm to close the valve 2. This lost motion is possible by virtue of the recessed part 24 of the wall allowing the bush 18 to travel to the end of the slot. Conversely, the valve 2 is opened first and thereafter rolls along the guide bar 23 and through link 5, opens the main valve. A passage 25 may be provided, which is open when the main valve is closed, to permit air compressed by the engine to pass to a storage tank, for use in actuating vehicle brakes.
Patent GB-476116-A (GB)
Title: Improvements relating to handles for cooking utensils
IPC: A47J45/10
Filed: 1936-06-13
Abstract: 476,116. Saucepan &c. handles. IZONS & CO., Ltd., and CHESSHIRE, J. I. June 13, 1936, No. 16535. [Class 66] A detachable handle for cooking vessels is formed with a spigot part f of square or other non-circular section adapted to engage a correspondingly-shaped socket b provided on the vessel, and carries a spring-controlled thumb-lever g formed with a catch consisting of a cranked nose j adapted to enter registering apertures k, l, in the socket and spigot portions. The nose or the socket may be chamfered so that the catch automatically rides into position as the handle is applied. The socket may be formed at the corner of a vessel of square shape in plan.
Patent GB-1426288-A (GB)
Title: Signal comparator circuit
IPC: H04B3/20
Filed: 1973-04-06
Abstract: 1426288 Comparator circuits NIPPON ELECTRIC CO Ltd 6 April 1973 [7 April 1972] 16611/73 Headings H4R and H3T In a signal comparator circuit, e.g. for comparing the signal levels in go and return lines to provide a signal to effect directionswitching, the two signals are fed to a comparator circuit 313 via rectifiers 311 and 312 with a series circuit of a D.C. voltage source 314 and a rectifier 315 connected across the output of at least one of the rectifiers, the voltage of the source being greater than the minimum threshold voltage of the comparator. As shown in Fig. 3 the comparator may comprise an operational amplifier 313 to which the rectifier output voltages are applied in opposition, alternatively the rectifier outputs can be applied in the same polarity to the two inputs of a differential amplifier, Fig. 5 (not shown). In a modification, Fig. 9, each rectifier has a series circuit of a rectifier and voltage source connected in parallel with its output, with the voltage source being common. The rectifier outputs, of similar polarity, are applied to the two inputs of a differential amplifier A, and the differential amplifier output is applied to a pair of threshold circuits TH-1 and TH-2 having a " NAND " gate connected to their outputs so that an output is obtained on terminal 907 if E01 is greater than E02, on terminal 907<SP>1</SP> if EO2 is greater than E01, and on 907<SP>11</SP> if they are approximately equal. A similar system is described using an operational amplifier in plane of the differential amplifier, Fig. 6 (not shown). The arrangements allow a comparator of high sensitivity to be used without noise causing unnecessary operation of the switching circuit.
Patent GB-485247-A (GB)
Title: Ice pack
IPC: F25D3/00
Filed: 1937-06-15
Abstract: 485,247. Surgical cooling-appliances. BATES, J. D. June 15, 1937, Nos. 16641, 16642, and 16643. Convention dates, June 15, 1936, Nov. 18, 1936, and Nov. 18, 1936. [Class 81 (ii)] [Also in Group XIII] In an ice pack formed of flexible material comprising a hollow permanently sealed container enclosing a liquid, one or more of the walls of the container are provided with integral means that divide the liquid into partially separated portions to prevent the formation of large masses of ice when the container is placed. in a refrigerator to freeze the liquid. The container thus remains flexible after the formation of ice therein. In one construction the container is formed by walls 2 and 3, the wall 3 being formed with a number of pockets 4 to form substantially separate liquid spaces. In another construction free ended posts 26, which may be made of resilient material, project from one wall into the liquid to cause the latter to freeze in partially separate portions. The posts may project from one or more walls and can be replaced by ridges of parallel or honeycomb formation. The ridges may be formed by indenting one of the sides.
Patent GB-657998-A (GB)
Title: Improvements relating to opposed-piston internal combustion engines of crosshead design
IPC: F02B75/28
Filed: 1949-06-23
Abstract: 657,998. Opposed-piston two-stroke engines. POUNDER, C. C., and REBBECK, Sir. F. E. June 23, 1949, No. 16676. [Class 7(ii)] [Also in Group XXVI] In a single-acting compression-ignition engine wherein side rods 9, 10 and 11, 12 are arranged in pairs on opposite sides of each cylinder unit and are attached to the yoke 8 of a piston 7 controling exhaust ports, the rods are articulated through slidable crossheads 15, 16 to connecting rods 17, 18 operating on secondary cranks 19, 20. The main piston 1, which controls the scavenge air ports 22 and is connected to the crankshaft 5 through a piston rod 2, crosshead 3 and connecting rod 4, may be of a different diameter from piston 7 and be withdrawn from the engine through scavenge space 24 (see Group XXVI).
Patent GB-1506725-A (GB)
Title: Oven systems
IPC: F27B9/28
Filed: 1975-04-22
Abstract: 1506725 Drying oven; burning waste gases ROPER CORP 22 April 1975 [25 April 1974 6 Nov 1974] 16679/75 Headings F4G and F4B An oven system, Fig. 1, e.g. for the primer and finish coat ovens for painting steel sheet, comprises an elongate housing 14 having a heating zone and inlet and outlet for the steel 12, means for maintaining the air leakage inwardly through the inlet and outlet at a predetermined level, hot air supply means 16 communicating with the heating zone, an exhaust 18 for removing gases from the zone, an incinerator 20, see Fig. 7 (not shown), for burning the gases, and means, including a heat exchanger 28, for supplying the heat produced to the means 16. Oven heating and exhaust system (Fig. 2a).- The hot air is supplied from a header 34 and ducts 36 to slots 40 in transverse ducts 38, and the hot air is recirculated by blowers 52 to ducts (64), see Fig. 3 (not shown), which communicate via headers 57, 59 with apertured cross pieces 60, 62. The air is removed by blower 48, and air leakage at the inlet is controlled by air jets 70, 72, 74, 76, Fig. 5, formed by recirculating air from the seal chamber, Fig. 2. At the exit of the oven, Fig. 2b (not shown), control air is delivered to the exhaust chamber from a supply (110). Automatic controls.-The system incorporates several temperature-responsive and pressureresponsive controls. Thermocouples 42 in the heating zone actuate dampers 44 in the ducts 36, Fig. 2, and thermocouples 100 in a chamber 98 between the seal chamber and the exhaust vestibule actuate dampers 94, 96 in lines 82 to the jets 72, 76, Fig. 5. The incinerator 20 has an automatic feed supply control (126, 124), Fig. 7 (not shown), and in a preferred embodiment, see Fig. 10 (not shown), the heat-exchanger 28 comprises two pebble bed regenerators used alternately, the temperature being regulated by the pressure in the hot gas line (134). In a modified system, the fuel supply to the incinerator is automatically controlled in response to the mass flow rate of the exhaust gases using a mass flow calculator (164), see Fig. 8 (not shown), connected to the duct 50, Fig. 2a, and a thermocouple (166) in the incinerator controls the concentration of combustible vapours in the oven, see Fig. 9 (not shown), by regulating the hot and cold air supply to the oven (dampers 44b, 160).