baber/WOPTO huggingface dataset:
Patent GB-1058549-A (GB)
Title: Cooking apparatus
IPC: A47J37/06
Filed: 1964-09-22
Abstract: 1,058,549. Sandwich toasters. N. CORNALL and J. R. JENKINSON. Aug. 10, 1965 [Sept. 22, 1964], No. 38526/64. Heading A4D. In an electrically heated sandwich toasting grill, upstanding rims 16 enclose a volume 26 between two circular plates 12, which are hinged together. The rims 16 compress the margins of a sandwich to retain its filling and the hinge 24 may include a spring to urge the plates together. Insulated handles 19 may be formed to combine into a single member held together by a clip. In use, the grill may be supported on either side by three legs 17, 18 and it may be stored in an upright -position on four legs 17.
Patent GB-320290-A (GB)
Title: Method of fastening loosely prepared felt insole for slippers
IPC: A43B17/00
Filed: 1928-12-31
Abstract: 320,290. Golo Schuhfabrik Akt.- Ges. Nov. 29, 1928, [Convention date]. Drawings to Specification. Slippers; soles.-In a slipper having a felt insole, the insole is stapled or pinned to the leather outer sole. The felt may have a fabric foundation, and the staples or pins are clenched at their ends.
Patent GB-1142549-A (GB)
Title: Electric coil assembly
IPC: H01F27/32
Filed: 1967-08-23
Abstract: 1,142,549. Transformers. PHILIPS ELECTRICAL & ASSOCIATED INDUSTRIES Ltd. 23 Aug., 1967 [26 Aug., 1966], No. 38756/67. Heading H1T. The primary winding 5 of an electric coil assembly, for example for a mains transformer, has one end covered with a portion of an insulating tube 9 of e.g. soft silicon rubber and the secondary coil 7 has one end remote from the covered end of the primary covered similarly as at 10, the adjacent surfaces of primary and secondary being insulated from one another by insulation, and connections are made to the windings at the end of each winding not covered by insulation. The insulating portions 9 and 10 may be separate and the insulation 11 may be paper, or the insulation 9, 10 and 11 may be portions of one single tube. The coil former 1 is of synthetic resin, and the connections 13, 15 to the windings are led through slots 17, 19 in the flanges 2, 3 of the former. The insulating portions 9, 10 if separate pieces, may be preformed.
Patent GB-1527882-A (GB)
Title: Pneumatic tyres
IPC: C08K5/04
Filed: 1975-09-22
Abstract: 1527882 Non-reversion of rubbers B F GOODRICH CO 22 Sept 1975 [9 Oct 1974] 38839/75 Heading C3K A pneumatic tyre with a sidewall having a thickness and stiffness sufficient to support the weight of a vehicle without collapse of the tyre when uninflated consists in the part of the sidewall mid-way between the beads and crown of the tyre of a high-modulus, low-hysteresis, stable, vulcanized tyre composition consisting of vulcanized cis-polyisoprene rubber containing a high-modulus carbon black, 4-8 parts by weight per hundred parts rubber of a cobalt soap and an antioxidant or antiozonant. The cobalt soap is preferably cobalt stearate and the antioxidant may be an N-substituted p-phenylene diamine. A phenolic resin, e.g. a resorcinol formaldehyde resin may also be included.
Patent GB-1404199-A (GB)
Title: Single-lens reflex camera with an automatic aperture control device
IPC: H02P7/288
Filed: 1972-08-22
Abstract: 1404199 Camera exposure control NIPPON KOGAKU KK 22 Aug 1972 [2 Sept 1971] 39046/72 Heading G2A A single lens reflex camera has a photo-electric element Rc the output of which controls the energization of a motor M which varies the size of the aperture opening of an objective lens 2, the control circuit for the motor being such that the motor cannot be energized to increase the aperture size during an exposure when the light incident upon the photo-electric element is cut off. The photo-electric element is disposed in a bridge circuit consisting of resistors R 1 , R 2  and variable resistor R v  which is set according to the film speed, shutter speed and is coupled with the aperture adjustment. The motor M is energized via transistors T 5 , T 6  in a sense dependent upon the sense of imbalance in the bridge so as to restore the bridge to balance. Limit switches Si, S 2  deenergize the motor when the diaphragm is driven to minimum and maximum aperture. A mirror drive lever 12 has a pin 12a to drive the mirror up at the start of an exposure, and at the same time a contact 14 is freed to contact a further contact 16. A cam 23 rotates in the direction of arrow A3 in synchronism with the movement of an opening blade drum 21 of a focal plane shutter and projection 23a closes contacts 14a, 19. A conducting path is thus formed between flash terminals 30a, 30b, which bridge limit switch S 1  via connectors 31a, 31b and prevent the motor M being energized to open the diaphragm. The above operation occurs at shutter speeds of <SP>1</SP>/ 60 th sec. or longer. At faster speeds, shutter speed dial 5 is rotated so that a projection 28b on a cam plate 28 fixed to shaft 5a engages one end 15 of contact 14a so that contacts 14a and 19 are closed. The conducting path between flash terminals 30a, 30b is thus formed upon the movement of the mirror.
Patent GB-1105929-A (GB)
Title: Liquid scintillator
IPC: G01T1/204
Filed: 1965-09-06
Abstract: A liquid scintillator for a thermal neutron detector comprises a phosphor dissolved in a borazine compound, <FORM:1105929/C4-C5/1> where R is hydrogen or C1- 5 alkyl radical (and at least one R is alkyl); the solute comprises a primary scintillator (p-terphenyl, 2,5-diphenyloxazole (P.P.O.), naphthylphenyloxazole (a  -NPO), phenylbiphenyloxazole (PBD), or anthracene) and a secondary scintillator (1,4-bis - 2 - (5 - phenyloxazolyl) - benzene (POPOP), dimethyl POPOP, bisisopropylstyryl benzene (BPSB), or 1,4 - bis - [2 - (5 - a  - naphthyloxazolyl)]-benzene (a -NOPON)).  The borazine may contain up to 20% B10.  The scintillator may be used at a solution thickness of 3-5 mm. to give a high thermal neutron, low gamma response.ALSO:A TMB compound of the structure <FORM:1105929/C2/1> is prepared by placing 67.5 grams of monomethyl-ammonium chloride and 21.8 grams of lithium borohydride in a flask fitted with a dropping funnel, Friedrich condenser, and stirrer.  One litre of triethylene-glycol dimethyl ether is added in drops through the funnel which is then replaced with an immersion thermometer. The reagents are then boiled under reflux until hydrogen evolution ceases.  After purging with dry argon, the Friedrich condenser is replaced with a distillation head to collect the fraction distilling below 135 DEG  C.  Further purification is accomplished by vacuum distillation (24 DEG /10 mm.).  The compound is characterized by a 5% boron10 content, which may be increased up to about 20% by modifying the lithium borohydride accordingly.  The compound is used as a combined solvent and neutron target in a liquid scintillator (see Division C4).
Patent GB-1130042-A (GB)
Title: A stop and retainer for closure members
IPC: E05B15/02
Filed: 1966-09-01
Abstract: 1,130,042. Bolt keepers; door stops. R. H. BAILEY. 1 Sept., 1966, No. 39051/66. Headings E2A and E2X. A combined stop and retainer device 6 for cooperation with a vertically adjustable abutment e.g., a bolt 1 carried on a movable closure member comprises a body 9 having a convex upper portion in which is provided a first stop channel 14 to receive and coact with the abutment when the abutment is in a higher position of adjustment, the channel extending inwardly from the periphery of the body from a lower part of said convex portion and terminating within the body at a higher part of said convex portion, said body having formed in it a second elongated retainer channel 10 to receive and coact with the abutment when the abutment is in a lower portion of adjustment, the second channel opening at the top of the body and having a base which rises in at least one direction from an intermediate point of the second channel towards an end thereof to the upper surface of the body, the base of the second channel being, intermediate its ends, at a lower level than the base of the first channel. The body 9 may be substantially cylindrical, Fig. 6 (not shown), or disc-like, Fig. 7 (not shown) or substantially rectangular, the upper surface of the device in all cases being convex.
Patent GB-940153-A (GB)
Title: Method and apparatus for producing a continuous tobacco rod or filler
IPC: A24C5/18
Filed: 1959-11-18
Abstract: 940,153. Cigarette-making machines. K. KÍRBER Nov. 18, 1959 [Feb. 17, 1959], No. 39081/59. Heading A2C. Intermittent compaction of a tobacco stream immediately prior to its trimming by a rotary cutter 3 is effected by a reciprocably mounted roller 4, Fig. 7, or a rotary cam 8, Fig. 8, the stream being used in the production of cigarettes having one or both ends densified. As shown, trimming is effected as the tobacco stream passes from a stream-forming belt 1 to cigaretterod-forming means E, F round the grooved rim of a disc 7 wherein the stream is retained by suction from spaced fixed chambers 11 acting through groove base perforations. In between the chambers 11 there may be no or a reduced suction. The trimmed tobacco 2a passes back to the distributer 10 or belt 1. The compaction may be such that the stream surface level at compacted points lies above, at or below the trimming level. Specification 798,308 is referred to.
Patent GB-867298-A (GB)
Title: Improvements relating to fastening devices for fastening railway rails to sleepers
Inventor: DUNCANSON RICHARD EDWARD FORD
IPC: E01B9/30
Filed: 1956-12-24
Abstract: 867,298. Fastening railway rails. BAYLISS, JONES & BAYLISS Ltd. Dec. 23, 1957 [Dec. 24, 1956], No. 39151/56. Class 104 (2). In a rail clip comprising a U-shaped portion which can be pressed downwardly on to a sleeper by a screw-threaded element and which includes torsion-bar limbs extending transversely to the rail length, the clip also includes inner crank-arm limbs extending oppositely to each other lengthwise of the rail foot in a downwardly-inclined manner from the inner end of the torsion-bar limbs and each is of a length greater than the cross-sectional width of the torsion-bar limbs to which it is connected so that upon tightening of the threaded element the torsion bar limbs are torsionally stressed and the crank-arm limbs become more and more flattened on to the rail foot until a sudden increase to further tightening is offered when the crank-arm limbs reach the flattened-down position. In the arrangement shown in Figs. 1, 2 and 3, spaced arched arms 18, 19 are connected at 20 at their outer ends and are provided at their inner ends with downwardly-inclined limbs 24, 25, the free ends of which bear on the rail flange 11. When a nut 31 is tightened the limbs 24, 25 are flattened on to the rail flange 11 so that when the limbs reach the fully flattened position they are in contact with the rail flange 11 over the whole of their lengths and offer a greatly increased resistance to the effort required to tightening the nut 31. About 75% of the pressure exerted by the limbs 24, 25 on the rail flange 11 is due to the torsional stress in the limbs 18, 19. In a modification, Fig. 5 (not shown), the limbs 24, 25 are arched so that when pressure is applied thereto they are pressed on to the rail flange until the arched points contact the rail flange 11 to offer an increase to the effort required to tighten the nut 31. The connecting portion 20 of the clip may be seated in a U- shaped groove in a metal plate 22 or any formation defining a channel such as upstanding ribs or projections to prevent angular displacement of the clip in a horizontal plane. Alternatively the free ends of the limbs 24, 25 may be bent towards the web of the rail 10. The clip may be tightened by other forms of fastening such as a cam, wedge or a " T " headed fastening element. Shock-absorbing and electrically-insulating pads 12 and 23 are placed beneath the rail 10 and the plates 22. The clip may be used in conjunction with a bed-plate in place of the plates 22 which bed-plate extends under the rail 10 and is formed with a seating to receive the pad 12.
Patent GB-1482803-A (GB)
Title: Semiconductor devices
IPC: H01L29/00
Filed: 1974-09-09
Abstract: 1482803 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 Sept 1974 [12 Sept 1973] 39304/74 Heading H1K In a transistor in which both the emitter zone 7 and the base zone 4 emerge at a surface 2 bearing an insulating coating 3, and in which one of the base electrode 12 and emitter electrode 10 substantially surrounds the other at the surface 2, a distributed base series resistance is provided by a region of the base zone 4 underlying the gap between the base and emitter electrodes 11, 10 and spaced from the emitter zone 7 by a part of the base zone 4. In the NPN embodiment shown in Fig. 2 the distributed base series resistance is constituted by the part of the base zone 4 underlying an N type zone 15 extending partially through the thickness of the base zone 4. The zone 15 may be diffused or implanted simultaneously with the emitter region 7. In modifications of this principal the N type zone 15 is replaced by a groove, either empty or at least partly filled with insulating material, or by material forming a Schottky barrier with the base zone 4. In Fig. 8 an upward projection 45 of a buried region of the collector zone 5 defines a constricted portion of the base zone 4 which constitutes the distributed resistance. This may be accompanied by a downwardly directed N type zone (15), Fig. 9 (not shown), optionally shorted to the base electrode (12). Impurities having different diffusion rates (e.g. As and P) may be employed in the two parts 45, 46 of the buried collector region. Fig. 5 returns to the use of an N type zone 15 to define the distributed resistance, but in this case the base zone comprises a lower, high resistivity portion 4A (e.g. an epitaxial layer) and an upper, lower resistivity portion 4B slightly deeper than the zone 15. This arrangement reduces the risk that the depletion zone associated with the collector-base junction 6 will expand to meet the zone 15 thereby completely isolating the base electrode 12 from the emitter zone 7. In Fig. 5 an emitter series resistor is also provided by the relatively large spacing of the periphery 20 of the emitter contact area from the surface-emergent line of the emitterbase junction 8. Fig. 7 also shows the base zone composed of a high resistivity portion 35 and a lower resistivity portion 36, but in this case the distributed base series resistance is provided by a strip 35A of the high resistivity portion 35 extending across the thickness of the low resistivity portion 36 to the surface 2.
Patent GB-1162969-A (GB)
Title: A Process for Converting Hydrocarbons
Inventor: KLINKEN JAKOB VAN
IPC: C07C5/22
Filed: 1968-08-19
Abstract: 1,162,969. Converting hydrocarbons using zeolite catalysts. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 19 Aug., 1968, No. 39511/68. Heading C5E. [Also in Division C1] Hydrocarbon conversion processes conducted in the presence of hydrogen use as catalyst a metal-deficient alumino-silicate zeolite having a molar SiO 2 /Al 2 O 3  ratio between 3 and 7 and of low alkali metal content (below 1 wt. per cent) which is prepared from the corresponding high alkali zeolite (above 3 wt. per cent) by a process comprising the following optional and essential steps:- (a) optional mild pre-calcination, e.g. at 250-450‹ C.; (b) essential heating one or more times with an aqueous solution containing ammonium or substituted ammonium ions, e.g. 3 times using a fresh solution each time, to effect ion exchange; (c) optional rinsing with ion-free water and drying at 100-200‹ C.; (d) essential calcining at below 700‹ C., e.g. between 450‹ and 700‹ C.; (e) optional repeating steps (b) and (d); (f) essential treating with an aqueous solution containing ammonium or substituted ammonium ions; (g) optional converting the so-obtained zeolite to the nitrogen-base form, e.g. by treatment with NH 3 ; (h) essential depositing on said zeolite a hydrogenating-dehydrogenating metal component, e.g. W, Mo, Co, Ni, Pd or Pt, and (i) optional calcining and sulphiding before use. The calcination steps (a) and (d) may be conducted in the presence of oxygen, and the final zeolite catalyst may be mixed with a binder, e.g. a nitrogen-base exchanged bentonite clay. Suitable zeolites are Y and L. Hydrocarbon conversion processes mentioned are hydrocracking, e.g. of naphtha, kerosene and light and heavy gas oils; isomerization, e.g. of paraffins (with simultaneous hydrogenation of any olefins present), paraffin waxes, alkyl- or or alkenyl-aromatics (with simultaneous hydrogenation if desired) and naphthenes; and alkylation. Examples illustrate the hydrocracking of straight-run naphtha using as catalyst either Pd/zeolite Y or W/Ni/zeolite Y, and the isomerization of n-pentane, n-hexane and desulphurized light gasoline using as catalyst Pd/zeolite Y.
Patent GB-1405552-A (GB)
Title: Colour-developer solutions for recording sheets
IPC: B41M5/155
Filed: 1973-08-14
Abstract: 1405552 Pressure sensitive record sheets FUJI PHOTO FILM CO Ltd 14 Aug 1973 [15 Aug 1972] 39522/73 Heading D2B [Also in Divisions C4 and G2]  A pressure-sensitive recording sheet is coated with a colour-developer containing a metal salt of an aromatic carboxylic acid and gelatin and/or a gelatin derivative in an amount 10-100 parts per 100 parts by wt. of the metal carboxylate. The gelatin derivative may be the reaction product of gelatin and or acid anhydride or a compound having a reactive halogen atom. Preferred carboxylates are the Cu, Ag, Mg, Ca, Cd, Hg, Zn, Al, Ga, Sn, Pb, Cr, Mn, Co or Ni salts of salicylic acid optionally containing hydrocarbyl substituents. In pressure - sensitive sheets a layer of microcapsule containing colour-former may be coated on the same face as that bearing the colour-developer layer or on a second sheet adjacent to the first. The colour developer layer may also include, acid resins such as phenol-formaldehyde resins. Other colour developers such as acid-clay or attapulgite, inorganic pigments such as metal oxides or hydroxides and conventional film forming binders. Colour developers used in the Examples were zinc 3, 5 ditert butyl salicylate, magnesium 3 cyclohexyl salicylate and aluminium 3-phenyl salicylate. The colour former used in the Examples was a 2% solution of Crystal Violet Lactone or 3. N, N diethylamino-7 dibenzylaminofluoran in isopropylnaphthalene and kerosene.
Patent GB-1441419-A (GB)
Title: Method of tagging units of production of a substance
IPC: C03C12/00
Filed: 1973-08-21
Abstract: 1441419 Explosive compositions; glass microspheres or particles MINNESOTA MINING & MFG CO 21 Aug 1973 39623/73 Headings C1D and C1M [Also in Divisions C3 and D2] Individual units of production of a substance are tagged by incorporating microparticles of a refractory carrier containing or least 0À1% by weight of each of a number of tagging elements, the microparticles having a density more than 3 g./c.c. and surviving ashing at 400-500‹ C. A record is kept of the elements, and the amounts thereof, present in the microparticles associated with each unit of production, so that the source of a substance may be subsequently identified. In examples, measured amounts of Mo, La, Ce, W, Zw, Sr, Cd, Nd, Mn, Co, Ni and Sw as oxides or salts are incorporated into BaO 2 -TiO 2  or ZrO 2 -SiO 2  glass or ceramic compositions and the mixture is formed into microspheres. Many other tagging elements which may be included are specified. The microparticles may also be in the form of flakes or fibres. The examples also describe the addition of the microspheroids to dynamite, automobile enamel, and ammunition powder, the recovery of microspheroids from explosion debris, enamel chips, fired bullets, and targets which have been hit, and their identification using an electron microprobe analyser. Reference is made to the addition of the microparticles to other substances including paper money, documents, medicines and drugs.
Patent GB-1089710-A (GB)
Title: Flat glass manufacture
Inventor: ELOY PIERRE
IPC: C03B18/18
Filed: 1966-09-05
Abstract: <PICT:1089710/C1/1> In the production of flat glass by the float process molten metal from the bath 8 is circulated from the colder end 12 of the bath through a heat-exchanger 20 back to the warmer end 11. The heat-exchanger, which may be made of a refractory metal such as molybdenum or tungsten and which may have internal baffles 21, is connected to a pump 27 which draws metal from the bath through a purifier 29 which removes slag.  The heat-exchanger may be in the atmosphere above the glass ribbon or immersed in the molten metal and several may be used in either location or both, connected in series and/or parallel.  The glass ribbon and/or metal bath is progressively cooled by the heat-exchanger(s) and the metal within the heat-exchangers correspondingly heated.  The flow through the heat-exchangers may be regulated and their position in relation to the plane of the glass adjusted in the course of production.  The width of the glass ribbon may be regulated by a series of side guides (94) movable from outside the tank to vary the width.
Patent GB-1421908-A (GB)
Title: Electroslag moulds
IPC: C22B9/193
Filed: 1972-08-25
Abstract: 1421908 Mould for electroslag refining ASSOCIATED ELECTRICAL INDUSTRIES Ltd 24 Aug 1973 [25 Aug 1972] 39717/72 Heading B3F A mould for electroslag refining has its walls 2 reinforced by vertically extending ribs 6 secured to the outer surfaces of the walls. The ribs 6 may be of cruciform, T-shaped or triangular cross-section and may be brazed, soldered or welded to the copper wall 2. Steel panels 9 may be secured to the ribs 6 and define passages 8 through which water is circulated. Alternatively, the walls 2 may be cooled by jets of water issuing from pipes (25). The mould is surrounded by a support structure 13, comprising vertical and horizontal girders 17 and 16 respectively, and is attached thereto by tie rods 18. Nuts 19 may be adjusted to correct any distortion of the mould wall 2 or to pull the wall 2 away from the ingot to facilitate extraction of the latter from the mould. In use, any differential expansion of the mould wall in the region of the slag pool is accommodated by local bowing of the walls 2 between the ribs 6. The arrangement may be such that there is a slight bowing of the walls 2 in their initial cold state. The mould may be formed in two parts, each comprising one side wall 2 and half of one end wall 3 secured together by bolts (7).
Patent GB-870843-A (GB)
Title: Improvements relating to snap-action valve devices
IPC: G05D23/185
Filed: 1958-12-09
Abstract: 870,843. Fluid-pressure servomotor control systems; valves. GARRETT CORPORATION. Dec. 9, 1958 [Dec. 12, 1957], No. 39729/58. Class 135. [Also in Group XXVI] A snap-action valve controlling escape of fluid from chamber 88 comprises two cooperating valve members each movable to and from the other, namely a primary member 40, to which movement is imparted to actuate the valve e.g. by concentric thermal tube elements 20, 24, and a secondary member, e.g. seat 84, biased at 92 away from the primary member and connected to a movable chamber wall, e.g. piston 78, for moving the secondary member towards the primary member and a stop 96 under the action of chamber pressure, whereby slight movement of the primary from the secondary member when the latter abuts the stop produces a pressure reduction in the chamber which allows spring 92 to snap the seat wide open. Pressure fluid is supplied to the chamber through a regulator and restriction, and leads from the chamber to a spring-loaded diaphragm operating a fuel valve or a safety device in a gas turbine fuel system or combustion engine starter system. The thermal element may detect the temperature of gas at the gas turbine inlet or outlet. The position of stop 96 and an upper stop 98 is adjustable by shims 66, 74 while the primary ball 40 when it seats is allowed movement inward of thermal tube 24 against a spring 50.