baber/WOPTO huggingface dataset:
Patent GB-1482594-A (GB)
Title: Electronically controlled fuel injection system
IPC: F02D41/34
Filed: 1974-07-22
Abstract: 1482594 Regulating IC engines NIPPONDENSO CO Ltd 22 July 1974 [11 Aug 1973] 32282/74 Heading F1B [Also in Division G3] I.C. engine fuel injection valves are opened for a time electronically determined in response at least to the oxygen content in the exhaust of a selected number of cylinders which are supplied via a first fuel pressure regulator operating at a different pressure to that of a second pressure regulator supplying the remaining cylinders. It is explained that the oxygen detector is sensitive over a very limited range of the air/fuel ratio Fig. 2, (not shown), which is richer than is required; by using this in a proportion of the cylinders only and providing a leaner mixture for the remainder the average ratio can be equal to the required value. In the embodiment the left hand cylinder only is selected. The oxygen content of its exhaust is measured at 19 and used, together with the signal from an inlet manifold pressure detector 23, to control the open time of the injector valves 2 and 3, for all the cylinders.(The right hand valve is shown in detail). The left hand cylinder only is supplied via fuel pressure regulator 9, the pressure being determined by the inlet manifold pressure and the rate of a spring; the remaining cylinders are supplied via a similar regulator 11 but which has a weaker spring and so provides a lower pressure. The regulators are of the type in which the injectors are supplied from the inlet chamber and a diaphragm variably obstructs an orifice through which excess fuel is returned to a supply tank. In an alternative arrangement, Fig. 6 (not shown), the two regulators are in series, supplied from a single pump instead of the two 7, 8, the excess from the first supplying the second. The electronic controller 1, also Fig. 4 (not  shown), comprises logic elements arranged as a flip-flop which is set to "0" by pulses from a crank-shaft switch 25, whereupon a constant voltage is integrated until its value exceeds that of the combined voltage from sensors 19 and 23, re-setting the flip-flop to "1". A driver circuit provides an output to the electromagnetic injector valves while the flip-flop is in the "0" state.
Patent GB-1018794-A (GB)
Title: Coatings and marking method utilizing phenols and colored products thereof
IPC: B41M5/025
Filed: 1962-08-22
Abstract: A dark-coloured substance is made by bringing a colourless or lightly-coloured compound which includes as its major functional arrangement the molecular structure:- <FORM:1018794/C4-C5/1> in which structure the moiety <FORM:1018794/C4-C5/2> represents the groups <FORM:1018794/C4-C5/3> into contact with a phenolic compound. Phenolic compounds specified are phenol, the three dihydric phenols, the three trihydric phenols and 1- and 2-naphthol.  The colourless or lightly-coloured compounds specified are described in Specifications 1,017,695, 1,018,793, 1,018,795 and 1,018,796.
Patent GB-537301-A (GB)
Title: Improvements in or relating to elastic fluid-operated alarms for making periodical signals
IPC: G10K7/06
Filed: 1939-12-15
Abstract: 537,301. Sirens: valves. KOCKUMS MEKANISKA VERKSTADS AKTIEBOLAG. Dec. 15, 1939, No. 32315. Convention date, Dec. 30, 1938. [Class 135] [Also in Group XXXVIII] The supply of fluid to a siren is controlled by a valve 7 which is opened and closed by the action of a cam 26 formed on a reciprocating rod 2 co-operating with a roller 25. The latter is carried by a lever 22 which is pivoted at 23 to a fixed support 24 and is connected to the valve rod 20. As shown, the rod 2 forms the piston rod of a hand operated compressor the piston of which is double acting which supplies compressed air to a chamber 6. The valve 7 controls the flow of air from the chamber 6 to a duct 21 leading to the siren. The cam 26 may be shaped so as to give a definite signal. The rod 2 may have a series of cams 26 round its perimeter. In such a case it is rotated to bring the cam 26 desired into register with the roller 25, such cam being indicated by a finger 28. The construction may be amended so that the roller 25 will actuate the valve 7 only during movement of the piston rod 2 in one direction.
Patent GB-1476017-A (GB)
Title: Composite noise-absorbing material
IPC: C04B32/00
Filed: 1975-08-01
Abstract: 1476017 Noise absorbing material ASAHI GLASS CO Ltd 1 Aug 1975 [2 Aug 1974] 32367/75 Heading C3P A noise absorbing material comprises a fibrereinforced synthetic resin having a number of fine cracks formed in the surface of the resin, the majority having a length of less than 0À5 mm. and a width of less than 0À1 mm. and which are effective in sound reduction. The cracks are introduced during or after incorporating the fibre into the polymer, e.g. by drying or aftertreating at a sufficiently high temperature to cause surface melting, or by surface treatment with a solvent or swelling agent or incorporating such in the polymer during formation of the composite. Glass is the preferred fibre forming 15-70% by wt. of the composition. In examples glass fibres are mixed with (1) PVC emulsion then dried at 120‹ C. for 10 minutes, (2) PVC emulsion containing dichloroethane (3) vinyl chloride-methyl acrylate copolymer emulsion containing toluene, (4) PVC emulsion containing ethyl benzene, (5) polyvinylidene chloride emulsion containing xylene (6) polymethyl methacrylate emulsion containing toluene, (7) polystyrene, or ABS or SB copolymer emulsion containing toluene. Further examples use mixed acetate and nylon fibres instead of glass.
Patent GB-1399633-A (GB)
Title: Auger with rotatable cutters
IPC: E21B10/22
Filed: 1972-07-11
Abstract: 1399633 Boring earth &c HUGHES TOOL CO 11 July 1972 [12 July 1971] 32368/72 Heading E1F An auger has rotary cutters 40 mounted on its tapered leading end. Some of the cutters are mounted on spindles 42 fixed in sockets 41 welded in notches 30 on the edge of the auger flights 21 but the leading cutters are mounted in sockets formed in the auger shaft 20.
Patent GB-738509-A (GB)
Title: New mixed esters
Inventor: BATTY JOHN WOOLLEY
IPC: C07C69/82
Filed: 1952-12-22
Abstract: Polyesters are prepared by heating a substance of the formula <FORM:0738509/IV (a)/1> (see Group IV (b)) wherein R is an alkyl radical.  The alcohol ROH formed during polymerization is preferably more volatile than ethylene glycol.  Specified esters are methyl, isopropyl and n-butyl b -hydroxyterephthalates.  The polymers are obtained by heating, under reduced pressure if necessary, until filaments drawn from the melt may be cold or hot drawn to give strong fibres.  Glycols, or derivatives such as ethylene glycol diacetate, or dithiols whereby sulphur linkages are introduced into the polymer, may be added to the reaction mixture, as well as ester-interchange and polycondensation catalysts.  In example (4) a mixture of methyl b -hydroxyethylterephthalate, ethylene glycol and zinc acetate is heated to remove methanol, and then heated under reduced pressure until a fibre-forming polymer is obtained.ALSO:Mixed esters of terephthalic acid of the general formula <FORM:0738509/IV (b)/1> wherein R is an alkyl radical, are prepared by reacting a monoalkyl ester of terephthalic acid with ethylene oxide, in the presence or absence of a solvent or diluent such as water, or an p  organic liquid such as tertiary butanol or xylene.  Pressures up to 50 pounds per square inch and temperatures up to 100 DEG  C. are satisfactory. Catalysts such as sulphuric acid, arylsulphonic acids, hydroxides and salts of alkali or alkaline earth metals, or ammonium salts may be used.  The preferred esters, which are used in the manufacture of fibre-forming polymers (see Group IV (a)) are those in which the alkyl radical contains less than five carbon atoms, especially where R is methyl.  Specified esters are methyl, isopropyl and n-butyl b -hydroxyterephthalates.  In examples (1) methyl b -hydroxyethyl terephthalate is prepared from mono-ethyl-terephthalate and ethylene oxide using caustic soda as catalyst; methyl b -hydroxyethyl terephthalate is prepared by passing ethylene oxide into a mixture of monomethyl terephthalate and methyl p-toluate at 150 DEG  C. using sodium metal as catalyst; (3) ethyl b -hydroxyethyl terephthalate is prepared by passing ethylene oxide into ethyl hydrogen terephthalate at 170 DEG  C. using sodium metal as catalyst, and extracting the product with benzene.
Patent GB-399666-A (GB)
Title: Double-edged safety razor
IPC: B26B21/18
Filed: 1932-11-16
Abstract: 399,666. Safety razors. GRœBER, E. and LÍSENBECK, A., (trading as GRœBER & LÍSENBECK), L³denscheid, Germany. Nov. 16, 1932, No. 32421. Convention date, Nov. 16, 1931. [Class 30.] The guard a is made of pressable material such as artificial horn and with cut-out portions b forming longitudinal strips on which teeth c are formed for the blade to rest on. The rear walls of the slots b are concave towards the centre of the guard. A metal strengthening plate may be embedded in the guard.
Patent GB-1204470-A (GB)
Title: Improvements in multiple-lamp photoflash units
IPC: G03B15/04
Filed: 1969-06-26
Abstract: 1,204,470. Flash-bulbs. SYLVANIA ELECTRIC PRODUCTS Inc. June 26, 1969 [June 26, 1968], No.32439/69. Headings G2A and G2L. A multi-lamp flash-unit, as shown a flash-cube, contains bulbs 4 each with a reflector 6 and all within a transparent container 8, there being a spot 15 of easily sublimed, preferably red dye on the lower surface of each flash-bulb 4, so that when a bulb is flashed, the dye volatilizes and deposits a noticable coloured area (15a) Fig.2  (not shown) on the adjacent inside face of the container 8 to indicate that the bulb has been used. The exterior surface of each bulb is coated with a blue coloured reinforcing lacquer film of e.g. cellulose acetate. The bulb contains shredded zirconium foil 10 in oxygen. The dye spot is preferably a paste having the following composition: 43À2% water, 2À3% polyvinyl alcohol (100% hydrolized), 4À5% dispersing agent such as lignin sulphate, 25À0% black non-volatile pigment such as Fe 3 O 4  dust, and 25À0% of an easily sublimated dye, preferably a solvent dye.
Patent GB-1150619-A (GB)
Title: Circuit Arrangement for Controlling the Intensity of a CRT Trace
IPC: G01R13/26
Filed: 1967-07-14
Abstract: 1,150,619. Cathode - ray tube displays. SPERRY RAND CORP. 14 July, 1967 [1 Aug., 1966], No. 32455/67. Heading H4T. In an arrangement for tracing vectors, characters &c. formed by line segments, the lengths of which may vary, by suitably deflecting the beam of a cathode-ray tube the slope of the ramp elements producing the deflections for each segment is made to vary in proportion to the length of the segment so that the latter, which are traced in time increments proportional to their lengths, produce an overall trace of uniform (light) intensity. The invention is described in connection with a known system of the kind shown in Fig. 2 in which digital signals representative of the X and Y beam positions and derived from a character card 2-2 are supplied (as shown for the X position signals, the Y signals being utilized in a similar manner) via a register to digital-to-analogue converters 2-10, 2-12, 2-14 producing ramp voltages which are supplied via binary weighted resistors R/4, R/2, R to a current driver 2-16 producing the X component beam deflection current. The character card also supplies digital signals I indicative of the beam intensity which is required for traces of different lengths to have equal brightness and these signals, instead of being utilized for beam intensity control as in the prior art of Fig. 1 (not shown) are in the present inventions, utilized in a voltage regulator circuit 2-30 to derive voltages + E, - E for controlling the slope of the ramp signals produced by the converters 2-10, 2-12, 2-14. Alternatively signals indicative of the angle at which the trace is to be drawn may be utilized, Fig. 3 (not shown). Fig. 6 shows a preferred embodiment of the voltage regulator circuit connected to a known digital-to-analogue converter (also Fig. 4, not shown) which produces the ramp voltage, the digital signals I being connected at terminals 6-6, 6-14, 6-22. The latter are fed directly to transistors 6-8, 6-16, 6-24 and via "interface" units (producing zero output for zero input and a negative output for a positive input, Figs. 7a and 7b, not shown) to complementary transistors 6-12, 6-20, 6-28. The + E and - E output voltages are then fed to the D/A converter 6-2 to control the rate of charge and discharge of the capacitor producing the ramp voltage. A non-preferred form which the voltage regulator may take is described with reference to Fig. 5 (not shown). An arrangement utilizing a slope detector producing a gating signal to gate signals representing a new character segment into the system when the slope of the ramp voltage ceases to change, i.e. at the end of the tracing of the previous segment, is described with reference to Figs. 8, 9a and 9b (not shown).
Patent GB-945049-A (GB)
Title: Improvements in or relating to feed control devices, notably for punching machines
Inventor: SIRUGUC EDOUARD
IPC: B23Q15/24
Filed: 1961-09-11
Abstract: 945,049. Drilling machine details; metal strip feeds. ETABLISSEMENTS SIRUGUE & CIE. Sept. 11, 1961 [Sept. 9, 1960], No. 32465/61. Headings B3C and B3W. [Also in Division H2] A work-table 1, e.g. on a punching, drilling boring, or welding machine, is driven along a bed 2 by an electric motor, the work-table also carrying photo-electric units 19-21 and 22-24 co-operating with riders 4 adjustably mounted on the bed 2; the arrangement is such that, when a light beam is interrupted by a rider, the motor is de-energized and an electromagnetic brake applied. The run-on, however, carries the photo-electric unit passed the rider and when the light beam is re-established an unspecified locking means is operated to positively stop the carriage. Each unit comprises two photocells illuminated by a single lamp and either or both of two operating cycles are initiated simultaneously with the de-energization of the motor according to whether either or both of the two cells are obscured by the rider 4. The two separate units may be arranged so that the operations are performed on both the forward and return runs of the carriage, the difference in their positions shown being equal to twice the run-on. The photo-cells operate through transistor circuits (Fig. 2, not shown), the locking device being operated for the time taken for a capacitor to re-charge after being discharged when the beam was interrupted. Specification 874,597 is referred to.
Patent GB-577033-A (GB)
Title: Improvements in or relating to projectiles
IPC: C21D9/16
Filed: 1939-12-18
Abstract: 577,033. Projectiles. LLOYD, F., and IBBOTSON BROS. & CO., Ltd. Dec. 18, 1939, No. 32469. Drawings to Specification. [Class 9 (i)] [Also in Group II] In a method of imparting a graduated hardening to a solid steel projectile, e.g. that used in anti-tank guns, varying from maximum hardness at the nose to minimum hardening at the base, the projectile or the nose is heated to a temperature above the recalescent point, a frusto-conical hood, shield or cowl is applied to the projectile near its nose and a highvelocity jet of water or other cooling liquid is directed against the nose, e.g. axially, so that the nose is cooled and the base or the body and the base is shielded from the liquid stream. The nose only is then immersed in water &c. for a sufficient time to allow the whole projectile to cool. The shield &c. is disposed at a selected point in the length of the projectile so as to form a well-defined line of demarcation between the hard nose and the tough body or base so that ultimate fracture of the projectile tends to take place about that line.
Patent GB-1443286-A (GB)
Title: Electrophotographic copying apparatus
IPC: G03G15/20
Filed: 1974-07-23
Abstract: 1443286 Heated rollers HOECHST AG 23 July 1974 [25 July 1973] 32499/74 Heading F2U [Also in Divisions G2-G3] A heat fixing device for toner images (see Divisions G2-G3) includes a rotatable metal cylinder 30 covered with a web consisting of an electrically insulating layer 29 and an electrically conducting layer 28 which latter is heated by electric current passed therethrough. As exemplified, the layer 28 comprises a silicone rubber having conductive particles incorporated therein.
Patent GB-538948-A (GB)
Title: A method of generating heat by chemical means
IPC: B01J19/00
Filed: 1939-12-19
Abstract: 538,948. Heating by chemical action. UNITED STATES APPLIANCE CORPORATION. Dec. 19, 1939, No. 32545. Convention date, Jan. 3. [Class 64 (ii)] A chemical solution for use with an exothermic hair-waving pad of the kind described in Specifications 501,886 and 537,247 employs copper nitrate to re-act with metallic aluminium. Activating salts which provide a chloride ion may also be added, e.g. ammonium, copperammonium, aluminium, sodium or potassium chlorides. Examples of such compositions are (1) copper nitrate 29 grams, copper ammonium chloride 10 grams, water up to 96 c.c.; (2) copper nitrate 40 grams, ammonium chloride 9 grams, water up to 96 c.c. The solution becomes neutral or slightly alkaline at the end of the reaction. According to the Specification as open to inspection under Sect. 91, the pad comprises a number of absorbent sheets 10b of asbestos paper or blotting paper with interposed sheets 10c of aluminium foil. The assembly of sheets is perforated. The outer wrapper comprises aluminium foil 13 lined with parchment paper 14, with inner sheets 16 of " Cellophane " (Registered Trade Mark) and 17 of paper towelling. The assembly is folded as shown in Fig. 5 (Cancelled), and then again about the line 23. When required for use, the pad is opened to the position shown in Fig. 5 (Cancelled), and the chemical solution is applied by a syringe 26, whereby it is absorbed by the absorbent sheets and reacts with the aluminium to generate heat. The pad is bent over a curler on which the hair to be treated has been wound. This subject-matter does not appear in the Specification as accepted.
Patent GB-1122403-A (GB)
Title: Adhesive compositions and methods of use thereof
IPC: C09J7/38
Filed: 1965-07-29
Abstract: A liquid adhesive composition comprises a pressure-sensitive adhesive, a volatile liquid vehicle or volatile solvent for the adhesive in an amount sufficient to impart coatability and 1-40% by vol. of rigid hollow frangible or collapsible spheroidal particles having a size of 20-500 microns.  The adhesive may comprise a vinyl acetate-dibutyl maleate copolymer and dibutyl phthalate in water, a copolymer of acrylic acid and isoamyl acrylate in ethyl acetate, polypropylene glycol and polyacrylic acid in water, or neoprene rubber and a phenolaldehyde resin in water.  The spheroids may be of glass or clay.ALSO:A substrate is coated with a liquid adhesive composition comprises a pressure-sensitive adhesive, a volatile liquid vehicle or volatile solvent for the adhesive in an amount sufficient to impart coatability and 1-40% by vol. of rigid hollow frangible or collapsible spheroidal particles having a size of 20-500 microns.  The adhesive may comprise a vinyl acetate - dibutyl maleate copolymer and dibutyl phthalate in water, a copolymer of acrylic acid and isoamyl acrylate in ethyl acetate polypropylene glycol and polyacrylic acid in water, or neoprene rubber and a phenol-aldehyde resin in water.  The spheroids may be of glass or clay.  The substrate may be gypsum wallboard or a plywood panel.
Patent GB-1032595-A (GB)
Title: Bowling ball lift mechanism
IPC: A63D5/02
Filed: 1964-08-12
Abstract: 1, 032, 595. Bowling alleys. BRUNSWICK CORPORATION. Aug. 12, 1964 [Aug. 12, 1963], No. 32906/64. Heading A6D. Balls are lifted from the return track 11 beneath the bed 22 of a bowling alley to a storage rack 12 at the players' end of the alley by means of two driven, tyred wheels 24, 26 adapted to successively engage a ball 42 and propel it along tracks 25, 27, the upper wheel being driven at a fixed speed, but the speed of the lower wheel being automatically variable to accomodate the relatively rapid speed of balls entering the mechanism.
Patent GB-669168-A (GB)
Title: Improvements in or relating to a vaned element of a hydrodynamic coupling and method of fabricating the same
IPC: B21D53/78
Filed: 1949-12-28
Abstract: 669,168. Jointing by forging. BORGWARNER CORPORATION. Dec. 28, 1949 [Dec. 31, 1948], No. 33094/49. Class 83 (iv). [Also in Group XXIX] In a vaned element of a hydro - dynamic coupling- device including a hollow shell 10 having a substantially semi-toroidal inner surface, a plurality of generally radially extending vanes 16 in the shell, each having an arcuate margin engaging the inner surface and terminating in end edges 25 extending inwardly from the arcuate margin, there is provided means, such as slots 12 and tabs 17, holding the vanes in engagement with the shell including means such as the boss 21 homogeneous with the shell and in interlocking engagement with one of the end edges of each vane; the vanes may be flexible and the tabs may be spaced further apart than the corresponding slots so that the vanes are under compression after assembly; in a method of fabricating the vaned element the boss is formed by deforming the inner surface of the shell after the vanes have been positioned in the shell. The shell 10 has slots 12 and 13 and notches 14 which are all in different radial planes whilst the core ring 11 has a slot 15. The vanes of flexible sheet metal or similar material, preferably steel, having compound curvatures, are located in the shell by tabs 17, 18, 19 and 20, the latter being of sufficient length to extend through slot 15 and fold down against the inner surface of ring 11. The tabs 17 are firstly inserted into slots 12, the vanes being so dimensioned that they must be flexed or distorted and so preloaded before the tabs 18 and 19 are aligned with slots 13 and notches 14. Prior to assembly of the core-ring a series of punches 24 are driven against the inner edge of the notches 14 to form the boss 21 which holds each vane in assembly with the shell. This punching operation sets up additional preloading forces in the vane which result in a reactionary force at 23 holding the vane firmly against the end of slot 12. In order to provide a degree of rigidity each vane may incorporate a slight circular crown 28. To guard against vane vibrations the dimensions of the inner vane surface and the core ring are such that pressure is required to assemble them to the vanes.