baber/WOPTO huggingface dataset:
Patent GB-1071100-A (GB)
Title: Improvements in retaining devices for drum-brakes for cycles, motorcycles or the like
IPC: B62L3/00
Filed: 1964-12-30
Abstract: 1,071,100. Internal shoe drum brakes. L. DUSSARRAT. Dec. 30, 1964 [Jan. 10, 1964], No. 52752/64. Heading F2E. In an internal shoe drum brake, a resilient retaining ring 7 or sleeve (11), Fig. 8 (not shown), is located around a circumferentially floating shaft 1, operating a cam 2 disposed between brake shoe ends (not shown), and is compressed between the walls of an elongated opening 3, Fig. 4 (not shown), in a support member 4, the arrangement being such that, on brake release, the shaft, though free to rotate, is prevented from circumferential movement in the direction of arrows 5, but, on brake application, the brake forces generated exceed the friction between the ring or sleeve and the walls of the opening and permit self-centering of the shoes according to lining wear. In the embodiment shown, the ring 7 is split and loosely retained in a peripheral groove 6 on the shaft. In a modified embodiment, Figs. 5 and 6 (not shown), the ring is located in support member recess around the opening. In the embodiment illustrated in Figs. 8 and 9 (not shown), a split sleeve (11) is just loosely mounted around the shaft. Said sleeve may be formed by several turns of a helical spring.
Patent GB-1367949-A (GB)
Title: Process for dyeing cellulose fibres
IPC: D06P3/60
Filed: 1971-11-19
Abstract: 1367949 Dyeing cellulose yarns and slivers FARBWERKE HOECHST AG 19 Nov 1971 [20 Nov 1970] 53837/71 Heading D1B Cellulose yarns and slivers in the form of a wound package are dyed by impregnating with an aqueous liquor containing an alkaline substance, a condense sulphur dyestuff and an azo-coupling component and is then injected with one or more acidic aqueous solutions preferably of pH 4.5 to 6.9 containing at least one diazonium compound derived from an aromatic amine the azoic dye being developed and the condense sulphor dye fixed by steaming the package or by injecting an aqueous solution of an alkali metal sulphide or an alkali metal hydrogen sulphide and allowing the package to dwell at room temperature or elevated temperature not exceeding 60‹C. The condense sulphor dyes contain thiosulphuric acid groups and may be derived from azo, phthalocyanine and anthraquinone dyes. Impregnation may be at 20‹ to 70‹C and steam fixation at 100‹ to 110‹C. Multicoloured shades are obtained.
Patent GB-1220673-A (GB)
Title: Sign or the like and a mounting therefor
Inventor: PEGG FRANK RAYMOND
IPC: G09F7/22
Filed: 1966-12-03
Abstract: 1,220,673. Supports for signs. F. R. PEGG. 26 Feb., 1968 [3 Dec., 1966], No. 54209/66. Heading G5C. A sign 1 is connected to a support such as a shelf 3 by a resilient arm 2, comprising a coiled spring 4, arranged so that vibrations or air currents, such as those in supermarkets, keep the sign in more or less constant oscillation. The outer end of the arm 2 may be secured to the sign 1 by riveting which may also secure a weight 6. The arm may be supported on the shelf 3 at 7, 8 as described in Specification 1,220,674.
Patent GB-1329439-A (GB)
Title: Toy electrical hand tools
IPC: B23B45/02
Filed: 1970-11-17
Abstract: 1329439 Portable drill ROBERT BOSCH GmbH 17 Nov 1970 [18 Nov 1969] 54532/70 Heading B3C [Also in Division A6] An electric tool for use as a toy drill has a plastics shell in two halves held together by screws 14; a detachable chuck 13 and is powered by a low voltage (up to 42 volts) electric motor having a lead-in cable 24 with a plug on its free end. The motor is retained in plase by the co-operation of walls, e.g. 37, 17, inside the shells. The motor's carbon brushes 33 are spring loaded in sleeves 32, 32<SP>1</SP> into engagement with a collector 35. On dismantlement of the drill, the brushes are retained in the sleeves by inserting a pin into a transverse hole 32a in the sleeve. The step-down gears 48, 49, 53 are of plastics and have no sharp edges. The tool may be adapted for driving other tools and toys. The shells, one of which may be transparent, may have marks indicating the correct location of the wiring.
Patent GB-1198880-A (GB)
Title: Process for the Production of Foams from Olefin-Vinyl Ester Copolymers
Inventor: SCHADE HUBERT
IPC: C08J9/02
Filed: 1968-11-18
Abstract: 1,198,880. Foaming cross-linked olefin-vinyl acetate copolymers. LEUNA-WERKE " WALTER ULBRICHT " VEB. 18 Nov., 1968, No. 54614/68. Headings C3C and C3P. Foams of olefin-vinyl ester copolymers are prepared by mixing the copolymer with a crosslinking agent of formula Me(OR) x , wherein Me is a metal of valency x, x is 1-5 and R is an aliphatic or cycloaliphatic radical, cross-linking the copolymer by heating at 60-300‹ C. and subsequently or simultaneously foaming the copolymer by the use of substances gaseous under the reaction temperature conditions. The foaming agents may be esters formed by the reaction of the copolymer and cross-linking agents. Conventional foaming agents such as azodicarbonic acid or diphenyl-sulphon 3,3<SP>1</SP>-disulphohydrazide may also be present. In the examples, an ethylene-vinyl acetate copolymer is cross-linked and foamed by heating with (1) azodicarbonic acid amide and either aluminum tri-isopropylate or titanium propylate-this may be preceded by heating with dicumyl peroxide; (2) di-phenyl-sulphon-3,3<SP>1</SP>-di-sulphohydrazide and a methanolic solution of sodium methylate; (3) as (1) wherein the copolymer is initially mixed with polyethylene. The copolymer, which may contain an antioxidant, may have incorporated therein inorganic fillers such as lithopone, titania, calcium carbonate and glass fibres. The cross-linked copolymers may be coated on to metal plates and then subjected to foaming.
Patent GB-1445650-A (GB)
Title: Passivating process for sponge iron
IPC: B01J19/00
Filed: 1974-12-18
Abstract: 1445650 Passivating sponge iron particles MIDREX CORP 18 Dec 1974 [26 Dec 1973]  54700/74 Heading C7U Sponge iron is continually passivated by feeding it downwards through a chamber whilst circulating a gas containing oxygen through the iron, the temperature and quantity of oxygen being controlled by sensors 40, 18. The temperature is 125 to 175F and the flow-rate at least 6.5 cu. ft. of gas/ 1b of particles being discharged.
Patent GB-1123279-A (GB)
Title: Improvements in or relating to ball joints
IPC: F16C11/06
Filed: 1966-12-09
Abstract: 1,123,279. Ball joints. A. EHRENREICH & CIE. 9 Dec., 1966 [14 Dec., 1965], No. 55182/ 66. Heading E2F. [Also in Division F2] In a ball joint the pin 5 is sealed where it extends into the housing 1 by an elastomeric gaiter 8 which is secured to the housing and pin by clamps 9 and 10 respectively and has an internal tapered sleeve portion 8b whose free end engages the pin. The cavity 11 between the pin and the gaiter is filled with grease during assembly. The pin head '4 is journalled in bearing pads 2, 3 urged together by a spring 7.
Patent GB-1225065-A (GB)
Title: Improvements in pneumatically-operated fastener driving devices
IPC: B25C1/04
Filed: 1968-11-21
Abstract: 1,225,065. Fastener driving tools. D. HAUBOLD. 21 Nov., 1968 [24 Nov., 1967], No. 55212/68. Heading B4C. In a pneumatically operated fastener driving tool a fastener driving piston 5 is raised to the position shown, after a working stroke, by compressed air flowing via passage 3 and ducts 11 in an annular blocking slide 8 into space 4b, the pressure p 1  in passage 3 being greater than the pressure p 2  within a reservoir 2 which is in permanent communication with the cylinder via ports 4c. When the trigger is actuated, the portion 3a of the passage is vented via passage 18a and compressed air within the space 4b squeezes elastic cushion 10 and acts on the lower end of the slide to move the slide upwardly so that the space 4b is vented via ports 4a and 9. The piston thus commences a working stroke. If during the working stroke the pressure p 2  reaches a minimum value, a control element 12 in the form of a differential piston slides to the left in a sleeve 13 and opens communication via passages 14, 15 between the passage 3 and the reservoir 2. Release of the trigger removes ball 18 from its seat and the compressed air acting on the upper surface of the slide causes the slide to return to the position shown. The compressed air with pressure p 1  then flows through the ducts 11 to return the piston to the illustrated position.
Patent GB-1286576-A (GB)
Title: Improvements in and relating to footwear
Inventor: LEA DARRELL BERNARD
IPC: A43B3/24
Filed: 1970-11-23
Abstract: 1286576 Boots &c D B LEA 23 Nov 1970 55558/70 Heading A3B An article of footwear, e.g. a sandal, consists of an upper 6 and a sole and heel unit 2, the upper 6 being removably attached to the sole and heel unit 2 so that it can be exchanged with another upper of different style and/or colour. The upper 6 is secured by stud 7 and socket 8 fastening means. The studs 7 on opposite sides of the sole 2 may be joined by a screw (not shown) passing through the middle of the sole and acting as a reinforcement. An interchangeable insock (not shown) may also be secured to the upper surface of the sole unit 2 by means of a multiple hook and loop fastener.
Patent GB-1120540-A (GB)
Title: Flash butt welding
IPC: B23K11/04
Filed: 1966-12-13
Abstract: 1,120,540. Protective arrangements. SIEMENS A.G. 13 Dec., 1966 [17 Dec., 1965], No. 55892/66. Heading H2H. Over-voltages across the secondary winding of a transformer feeding a flash butt welding machine are reduced by shunting the winding with a resistor in series with a pair of reverse parallel connected thyristors or a bipolar semiconductor diode chain, the thyristors or diodes being rendered conductive on voltages exceeding the normal voltage crests.
Patent GB-1505342-A (GB)
Title: Encoders
IPC: H04L27/18
Filed: 1973-12-05
Abstract: 1505342 Telegraphy POST-OFFICE 4 March 1975 [5 Dec 1973] 56382/73 Heading H4P In a digital encoder receiving two streams of data pulses A, B and clock pulses to produce two streams of encoded data pulses E, F in synchronism with the clock pulses, input data coincident with each clock pulse is summed with output data coincident with the previous clock pulse, which output data is stored FF1, FF2 without being circulated. Pulse streams A, B and E, F are regarded as being in Gray code and are converted to and from binary in XOR gates G1, G3; AND gates G2, G6 ensure synchronization with the clock pulses. Addition of successive bits is effected in toggle flip-flops FF1, FF2 with a "carry" gate G4. Since the output is not circulated the operating speed of the encoder is comparable with the speed of its logic components. The encoder may be used with a 4-phase differentially coded phase shift keyed digital transmission system.
Patent GB-1174256-A (GB)
Title: Improvements relating to Railway-Vehicle Axle Mountings
Inventor: WILLIAMS RAY COULTER
IPC: B61F5/32
Filed: 1966-12-16
Abstract: 1,174,256. Axle bearing guides; mounting axles. STANDARD CAR TRUCK CO. 16 Dec., 1966, No. 56519/66. Heading B7L. A railway vehicle sideframe/axle bearing connector in the form of a saddle element 13, Figs. 1 and 2, is movable vertically with sliding clearance in a slot in the side frame 10 for the axle bearing unit 12. The element 13 seats on, partially encompasses and interlocks with the bearing 20, 21, 22 against displacement thereon, by having flanges 27 engaging the ends of the bearing outer race 22. The bearing is secured against axial displacement on the axle journal 19 by a collar 23, cap 25 and seals 24, 26. The element 13 also has side flanges 14 which interlock with the side frame 10 with clearances so as to permit limited movement of the element transversely of the sideframe 10. Load carrying bearing pins 15 are mounted on the flanges 14 and swing hangers 16 depending from the pins 15 are pivoted on bearing pins 17 in lugs 18 projecting from opposite sides of the side frame 10. In another embodiment, the saddle element has a lug engaging between the side walls of the side frame and pivotally supporting an inverted U-shaped swing-hanger connected to a bar bearing the side frame. In further embodiments, the side frame is supported by rollers or springs carried by side flanges of the saddle element.
Patent GB-1285083-A (GB)
Title: Regenerative plant for waste pickle liquor
IPC: C01G49/06
Filed: 1969-11-20
Abstract: 1285083 Gas/liquid contact ENVIRONMENTAL TECHNOLOGY Inc 20 Nov 1969 [2 July 1969] 56873/69 Heading B1F [Also in Division C1] Waste pickle liquors are treated by spraying the liquor into a convertor 12 which consists of an airtight chamber 54 the upper part of which is refractory barck lined 56, and which has a grate floor 58 supporting a packed bed 60 of inert material (e.g. pebbles). Hot combustion gases (ca. 2000‹F.) are passed either upwards or downwards through the bed via inlet and outlet pipes 14 and 16, and react with the pickle liquor sprayed in via pipe 32 causing it to decompose into a solid product and a gaseous product. The solid product is caused to fall through the bed by vibrating the grate with vibrating mechanism 68, while the bed is prevented from settling by probes 78 in the bed which agitate the bed by means of vibrating mechanism 77. The lower part of the converter consists essentially of a hopper 62 at the base of which is a conveyor 64 which removes the solid product as it falls through the grate. The gaseous product, consisting of the pickle-acid gas is entrained in combustion gases, and after passing through an economiser to preheat the feed liquor is passed to an absorption tower where the pickle acid is recovered. The entire system operates under a positive pressure of 10-30 inches water gauge. In the described embodiment waste pickle liquor containing iron chlorides is decomposed to yield Fe 2 O 3  and HCl, the HCl being recovered as aqueous solution, and the Fe 2 O 3  as solid.
Patent GB-569583-A (GB)
Abstract: 569,583. Gas lighters. BENEY (1938), Ltd., and LEWIN, P. W. Feb. 10, 1944, No. 2502. [Class 75 (iii)] In a gas lighter of the kind comprising two arms a , b resiliently connected by a loop c and carrying respectively a striking surface e and a flint l, the flint is clamped in position by a thumb lever g pivoted at h to the arm b. In Fig. 3 the arm b is formed with two differently sized notches k<1>, k<2> on one of which the flint is secured by the flat or curved surface of a resilient hook formed at the end of the lever g. Other constructions are described in which the flint is clamped in a hole in the arm b by (1) a curved end surface on the lever g (2) by engagement with a tapered slot in the end of the lever g and (3) by a projection on the lever g passing through a slot in the arm b.
Patent GB-1382739-A (GB)
Title: Maleic anhydride recovery method
IPC: C07C51/573
Filed: 1972-12-13
Abstract: 1382739 Maleic anhydride recovery CHEVRON RESEARCH CO 13 Dec 1972 [17 Dec 1971] 57600/72 Heading C2C Maleic anhydride is recovered from a gaseous mixture containing the anhydride, e.g. the effluent stream from the vapour phase oxidation of a hydrocarbon feed, by passing the gaseous mixture into contact with a scrubbing agent in the liquid phase to effect maleic anhydride adsorption into the liquid phase, the scrubbing being one or more intramolecular carboxylic acid anhydrides having a boiling point at least 15 C. above the boiling point of maleic anhydride. Suitable intramolecular carboxylic acid anhydrides are those of formula R(Z) n  where R is an inert C 1  to C 25  hydrocarbon group, i.e. one that has no carbon-carbon triple bond unsaturation or conjugated carbon-carbon double bond unsaturation; Z is a group of formula where R<SP>1</SP> is a C 1  to C 15  alkyl group; and n is 1 or 2; e.g. alkenyl or alkyl substituted succinic anhydride or a bis-succinic anhydride substituted alkene. The R and R<SP>1</SP> groups may also be substituted by carbalkoxy groups or chlorine atoms. The intramolecular carboxylic acid anhydride scrubbing agent may be used in admixture with a diluent selected from conventional non-aqueous scrubbing agents for maleic anhydride provided that the intramolecular carboxylic acid anhydride content of the resulting diluted scrubbing agent is at least 30 mol per cent. When the gaseous mixture contains water, the contacting is effected at a temperature at least 10 C. above the dew point of water. Preferred contacting temperatures and pressure are 65-125 C. and 0À1 to 3À5 atmospheres. The maleic anhydride may be separated from the scrubbing agent by fractional distillation.
Patent GB-1370927-A (GB)
Title: Selective liquid growth process
IPC: H01L47/02
Filed: 1971-12-15
Abstract: 1370927 Epitaxial deposition on substrates MITSUBISHI DENKI KK 15 Dec 1971 [15 Dec 1970] 58290/71 Heading B1S [Also in Division Hl] The structure of Fig. 1e is made by forming on a semi-conductor substrate 20 areas (not shown) of a metal oxide reducible to the free metal and by growing semi-conductor regions 26 from a metal solution of a semi-conductor, the growth process being effected in a reducing atmosphere (so that the melt is able to wet the surface in the areas where metal is liberated from the oxide). The metal oxide (stannic oxide, indium oxide, or gallium oxide) may be provided by masked deposition or by overall deposition and selective removal. Suitable semi-conductors for both substrate and grown regions are germanium, silicon, gallium arsenide, gallium phosphide, gallium antimonide, indium phosphide, indium arsenide, and indium antimonide. Suitable carrier metals for the melt are tin, indium, and gallium. Fig. 2b shows a Gunn diode comprising an n-type epitaxial layer grown on a chromium-doped gallium arsenide substrate 20 provided with n<SP>+</SP> terminal regions 32 by forming at these locations stannic oxide coatings on the epitaxial layer and by covering the structure with a melt of n-type gallium arsenide in tin, and having alloyed gold-germanium contacts 34. The device may have a copper heat sink. The exposure to a semi-conductor-containing melt of a substrate selectively coated with reducible metal oxide may also be used to form the emitter region of an npn gallium arsenide transistor.
Patent GB-1375450-A (GB)
IPC: C11D1/65
Filed: 1972-12-19
Abstract: 1375450 Detergent compositions containing enzymes PROCTER & GAMBLE CO 19 Dec 1972 [20 Dec 1971] 58508/72 Heading C5D A detergent composition for washing and softening textiles comprises (A) an enzyme having a specified cleaning performance in a wash solution, (B) a mixture of an anionic and a quaternary ammonium cationic surfactant in a wt. ratio of 1 : 9 to 9 : 1. The enzyme (A) is such that, when used in a 1 % aqueous solution of the detergent composition according to the invention but wherein the mixture (B) is replaced by an equal amount of a nonionic surfactant, it gives a better cleaning performance than it does when used under the same conditions in an identical composition according to the invention except that the cationic surfactant of mixture (B) is replaced by an equal amount of an anionic surfactant. The enzymes may be proteases produced by Bacillus strains as disclosed in Specification 1,243,784, e.g. NCIB 10147, 10313, 10315 and 10317 or strains of Bacillus alcalophilus, e.g. NCIB 8772. The enzymes are used in quantities of 0À001 to 5% by wt. In 1% aqueous solution, they have a pH of above 9À0, preferably 9À5 to 11À0. Preferably, the isoelectric point is greater than 9À5. Mixture (B) comprises 2 to 50% wt. of the composition. Optional ingredients are (C) nonionic, ampholytic and zwitterionic surfactants, (D) organic andin organic builders, (E) bleaches, (F) other conventional additives.
Patent GB-1328867-A (GB)
Title: Sorting machines notably for fruits and vegetables
IPC: B07B1/10
Filed: 1970-12-10
Abstract: 1328867 Grading machine R DURAND 10 Dec 1970 [12 Dec 1969] 58672/70 Heading B2H In a machine for grading elongated objects, e.g. carrots according to size, the objects are fed from an inclined chute 2 on to a horizontal track formed by endless travelling belts or ropes 3 spaced apart from one another and arranged so that for a portion of the track adjacent the chute 2 they are parallel to one another and then diverge in the direction of travel, guide blades 4 being mounted between the belts or ropes in the said portion of the track for movement in longitudinal and vertical planes in order to position the objects on the track with their major dimensions in the direction of travel. Since the gap between adjacent belts or ropes increases from adjacent the input end to the output end of the track the objects are sorted out automatically, the thick objects being carried along farther than the thin ones before dropping through the gaps. The blades 4, which are alternately of different height are wedged edgewise to rollers 5a, 5b. The roller 5a is provided at its end with bearings 10a, 10b connected to eccentric trunnions 11a, 11b having sprockets 6a, 6b secured thereto. The trunnions are supported in bearings 12a, 12b secured to members 13a, 13b of the machine frame 15. The roller 5b is similarly mounted and carries a sprocket 6c which is interconnected to sprocket 6b by a roller chain 7. Sprocket 6a is connected via another roller chain 8 to a sprocket 9 rigid with a lay shaft 14 carrying the return pulleys engaged by the endless belts or ropes 3. Movement of rotation of shaft 14 is converted by the eccentric trunnions and the rollers 5a, 5b into a reciprocating movement, in vertical and longitudinal planes, which is imparted to the blades 4.
Patent GB-590415-A (GB)
Abstract: 590,415. Work supports for electroplating. BRITISH THOMSON-HOUSTON CO., Ltd. Feb. 7, 1945, No. 3076. Convention date, Feb. 9, 1944. [Class 41] Apparatus for rotating an article such as a reamer 6, during electro-deposition of metal thereon to prevent accumulation of gas in recesses therein comprises a conducting bracket 8 secured at an intermediate part to insulating disc 16 rotated through gears 18, 19, shaft 20 and gears 21, 22 by motor 23 mounted on cover 15. The article 6 is detachably secured to the outer end of the bracket and electrical connection is made thereto by insulated conductor 12 connected at its upper end to V-shaped conducting member 13 secured to cover 15 and making connection via bar 3 to one pole of the electric source, conductor 12 being connected at its other end to the bracket 8 through a spring inserted between the end of the conductor 12 and cup 9 secured to the bracket. A spring 29 secured between rod 12 and a rigid bar 26 secured to cover 15 retains bar 12 and cup 9 in electrical contact. The other pole of the electrical source may be connected to tank 1 or to an electrode mounted within the tank.