baber/WOPTO huggingface dataset:
Patent GB-814538-A (GB)
Title: Improvements relating to resilient rubberised fabric in strip form
IPC: D06M15/693
Filed: 1956-03-05
Abstract: 814,538. Resilient coated fabrics; laminates. REGGIANI, P. Jan. 31, 1957 [March 5, 1956], No. 6840/56. Addition to 707,433. Classes 42 (1) and 140. [Also in Groups XIV and XXV] Continuous lengths of resilient strip material are produced by impregnating a parent sheet of square woven textile fabric, e.g. a cotton fabric, with an unvulcanized rubber or a similar vulcanizable elastomer, cutting the impregnated sheet into sections, assembling and joining the sections to form a continuous reconstructed sheet having its warp and weft threads at predetermined angles of bias relatively to the length and breadth of the sheet, vulcanizing the sheet and cutting the sheet longitudinally or generally longitudinally into strips of the required width. The parent sheet may be a wide parallel sided sheet and sections 2 in the form of non-rectangular parallelograms may be cut therefrom on the bias along parallel lines of severance 1 across the sheet at an angle α to its length, the sections being joined with the edges 3 and 4 which initially constituted the side edges of the parent sheet brought together and the remaining edges 5 corresponding to severance lines 1 in line with one another to form the edges of the reconstructed sheet. The sections 2 may be joined by overlapping the ends 3 and 4 of the sections, or by bringing the ends into abutting relationship, and covering the overlaps or the abutting ends, at each side thereof, with a covering strip 6 formed of unvulcanized rubber or a similar vulcanizable elastomer in sheet form, said covering strip being vulcanized with the reconstructed sheet. The impregnated parent sheet may be sandwiched between a pair of covering layers 8 and 9 of unvulcanized rubber or a similar vulcanizable elastomer in sheet form to form a unitary composite structure prior to being cut into sections. The strips may be cut from a composite (plural layer) sheet formed by superimposing two or more reconstituted sheets upon one another and uniting to form a unitary structure, said sheets may be vulcanized prior to or subsequent to being superimposed and united. Notches or perforations may be cut into the material to increase the resilience or extensibility of the strips.
Patent GB-840310-A (GB)
Title: Improvements in or relating to thermionic valves
IPC: H01J1/20
Filed: 1959-02-27
Abstract: 840,310. Thermionic valves. STANDARD TELEPHONES & CABLES Ltd. Feb. 27, 1959, No. 6991/59. Class 39(1). In a thermionic valve an indirectly-heated cathode sleeve is locked in an upper electrodelocating-insulator and is free to move axially, due to thermal expansion, through a lower insulator. A cathode tail is secured to the upper end of the cathode sleeve and passes down inside the sleeve to make connection with a lead sealed through the valve base below the lower insulator. As shown the cathode sleeve 10, Fig. 3, of a triode is locked in an upper mica disc 5 by means of a projecting rib 11 and rolled down portions 12 of the sleeve. Since the cathode tail 15, of nickel tape, is welded to the top 16 of the sleeve, it is less liable to fatigue due to bending upon expansion of the sleeve. In an alternative embodiment the rolled-down portions 12 are replaced by an extension of the cathode tail which is brought out through the top of the sleeve turned over and made to bear against the top of the insulator 5. In this case the tail is pressed against the inside of sleeve 10 by heater 16, Fig. 6, and may be secured to the outside of the sleeve by welding at 17. The end of the tail 15 may be sandwiched between insulator 5 and a further insulator 18,
Patent GB-1036442-A (GB)
Title: Improvements in or relating to alloy steels
Inventor: DUCKWORTH WALTER ERIC
IPC: C22C38/12
Filed: 1963-02-21
Abstract: An alloy steel comprising:- .C.0.1-0.6% .either Cr.0.5-6% or another strong carbide former 0.5-3% .Mu.1.5-9.0% .Si.0-3% .Nb.0-1% the balance, apart from incidental impurities being iron is austenetized at above the Ac3 point, quenched to between the Ac1 and Ms temperatures, worked within this range and then quenched to below the Mt point to form martensite. The martensitic steel may then be cold worked and tempered (e.g. at 200 DEG C.). Alternatively the steel after working between the Ac1 and Ms temperatures may be isothermally transformed to give a pearlitic or bainitic structure which may be cold worked. Impurities contents disclosed are S 0.2% max., P 0.2% max., N 0.01% max., O 0.05% max., Cu 0.01% max Al 0.01% max. and a few parts per million of Zu, Bi, Ca, Mg, Pb and Zr. Examples of other strong carbide formers are Mo, Ti and V.
Patent GB-1372081-A (GB)
Title: Hydraulic composition
IPC: C09K17/42
Filed: 1972-02-15
Abstract: 1372081 Hydraulic composition J FUJIMASU 15 Feb 1972 7039/72 Heading C1H An hydraulic setting composition for setting soils is made by: calcining at 1000-1300‹ C. a mixture comprising in parts by weight: 100 limestone, 3-6 alumina, 15-30 silica, 4-10 magnesium oxide, 5-10 iron oxides and 5-10 magnesium chloride, and cooling it to 100‹ C. in 10-90 minutes to produce component A, and mixing 100 parts by weight of A with 10 parts by weight of component B comprising in parts by wt.: 79 calcium sulphate, 55-75 alkaline earth metal chloride, 5-10 alkali metal silicofluoride, 10-20 alkali metal carbonate, 10-20 buffering agent and 30-50 lignin sulphonate. Preferably magnesium chloride, sodium silicofluoride, carbonate and tripolyphosphate (buffer) are used in component B. Components A and B may be mixed with 10 parts by weight (based on 100 parts by weight of component A) of component C which comprises in parts by weight: 100 of at least one of weathered granite soil calcined at 700-900‹ C., decomposed basalt soil calcined at 300-500‹ C. or volcanic ash calcined at 300-500‹ C.; and 40-60 of at least one. of pozzulan gravel, unslaked limestone residue obtained from fully calcined limestone, calcium hydroxide, nickel blast-furnace slag or the residue of electrolytic refining of aluminium all calcined at 200-300‹ C. The hydraulic composition is mixed with soil in an amount 7%-50% by weight of the total mixture, wetted and allowed to set.
Patent GB-841601-A (GB)
Title: A method and means for forming the teeth of gear wheels and the like
IPC: B23F21/02
Filed: 1958-03-05
Abstract: 841,601. Gear - cutting; gear - grinding. BATEMAN, W. H. Feb. 16, 1959 [March 5, 1958], No. 7053/58. Class 83 (3). [Also in Group XXIII] A method of cutting helical or straight teeth on gears, or splines on shafts, consists in engaging a pinion 24 with a control-worm 9, and a workpiece 29 with a milling or grinding-hob 10, the pinion and work being geared together on parallel shafts 23, 30, and moving the work and pinion at right-angles to the worm and hob axes. The hob and worm are mounted on a shaft 8 rotated by an electric motor 11 through beltgearing 12. A slide 15 is traversed parallel to the shaft 8 by a fluid-pressure ram. A similar ram traverses a slide 20 on the slide 15. The slide 20 supports the pinion 24 meshing with the worm 9 and a bracket 25 which can be swung about the shaft 23 by a piston 34 to move the work 29 into engagement with the hob. The limit of feed is determined by a stop 38 adjusted by a graduated knob. Gears 31-33 interconnect the work and pinion. In operation, traverse of the slide 20 feeds the work across the hob, and traverse of the slide 15 causes even, wear of the hob. The hob may be formed of discs of different abrasive qualities, resulting in teeth being first rough-cut and then finish-cut as the work is traversed. A formed tool may be mounted on the work-spindle to true;the hob. Specification 764,707 is referred to.
Patent GB-609157-A (GB)
Title: Improvements in or relating to inductor for high frequency induction heating
IPC: H05B6/36
Filed: 1946-03-07
Abstract: 609,157. Inductors for high-frequency induction heating. INDUCTION HEATING CORPORATION. March 7, 1946, No. 7117. Convention date, March 12, 1945 [Class 39(iii)] The inductor comprises an inductive frame, adapted to surround the workpiece in widely spaced relation thereto, with high-frequency current connected across a slot in one side of the frame. Means are provided for removing from, and connecting to, the frame, plate-like adaptors having various shaped openings for receiving the workpiece, and having close inductive coupling therewith. In a preferred example for heating a single workpiece, frame portion 15 has a slot 16, and terminal connections at 19 and 20. Central aperture 25 receives the adaptor 26 having a corresponding slot 28, securing screws 30, and in this instance a circular aperture 27 for receiving the workpiece. A cooling fluid inlet and outlet are shown at 21 and 22. A device for inductively heat treating a number of workpieces simultaneously is also described in the Specification.
Patent GB-1244465-A (GB)
Title: Improvements in or relating to pneumatic tyres
IPC: B60C9/28
Filed: 1970-02-13
Abstract: 1,244,465. Pneumatic tyres. CONTINENTAL GUMMI-WERKE A.G 13 Feb., 1970 [11 April, 1969], No. 7117/70. Heading B7C. A blank for a pneumatic tyre comprises carcase plies 2, 3 of parallel cords embedded in rubber and extending at approximately right angles to the mid-circumferential plane between two inextensible bead rings 1, and two or more layers of rubberized parallel cord fabric forming a circumferential belt 8 which has an axial width B two-thirds the length L of the carcase ply cords between the bead rings and the directions of the cords of adjacent layers inclined at equal and opposite angles to said plane in the range between 30 and 50 degrees. The belt 8 comprises two sheets 6, 7 with the sheet 7 folded into S-shape. When the blank is shaped into a finished tyre form the belt is expanded circumferentially and axially contracted from B to b with the result that the angle of the belt cords with the said plane is reduced to between 10 and 25 degrees while those parts of the carcase plies underlying the belt become compressed and those parts within the tyre-sidewalls become tensioned. Reference has been directed by the Comptroller to Specification 1,164,840.
Patent GB-593019-A (GB)
Title: Arylguanamines
Filed: 1943-05-05
Abstract: Guanamines in which the 2-carbon atom of the 4,6-diamino-1,3,5-triazine ring is attached to an aryl carbonylic acid group or a sulphonated derivative thereof or an aryl guanamino group are prepared by the reaction of a 1- or 1 : 1-substituted biguanide in which the monosubstitution group is alkenyl or aryl and the disubstitution groups are alkyl, or an unsubstituted biguanide, with a di-alkyl-ester of an aryl dicarboxylic acid or an alkali metal salt of a mono-alkyl ester of an aryl-dicarboxylic acid dissolved in a monohydric lower paraffin alcohol containing from 1 to 4 carbon atoms, optionally in the presence of a metal alkoxide having from 1 to 4 carbon atoms in the molecule.  Specified substituents are methyl, allyl and phenyl.  Examples relate to the condensation of biguanide with: (1) dimethyl phthalate in methanol solution to obtain o-carboxybenzoguanamine; (2) methyl 2-ethyl-hexyl phthalate (prepared by the reaction of dimethyl phthalate with 2-ethyl hexanol in the presence of b -toluene sulphonic acid as catalyst); (3) sodium methyl phthalate, in the presence of sodium dissolved in alcohol; (4) the sodium salt of 1.2-diamyl-4-sulpho-phthalate (prepared by the reaction of the acid with the alcohol), as in (3), to obtain the disodium salt of the sulphonated 2-carboxybenzogyanamine; (5) and (6) as in (1), but using: (5) dibutyl-terephthalate (prepared by the reaction of the acid with the alcohol), to obtain terephthaloguanamine and (6) dimethyl 1,2-naphthalene dicarboxylate, to obtain a mixture of b -(a -carboxy-) and a -(b -carboxy-) naphthoguanamines.  The products react with formaldehyde to form resins which are soluble in an aqueous alkaline medium and are applicable to textile materials as finishes which on curing by heat are transformed from a water-soluble to a water-insoluble form.  When incorporated with other aldehyde-resin-forming compounds having a hydrophobic group, they serve as water-repellents.
Patent GB-550447-A (GB)
Title: Improvements in and relating to pressure-operated switches for indicating and controlling gas pressure
IPC: H01H35/34
Filed: 1941-06-06
Abstract: 550,447. Actuation of switches. ASCOT GAS WATER HEATERS, Ltd., and FRIEDMAN, L. June 6, 1941, No. 7145. [Class 38 (v)] Pressure of gas, operating on a diaphragm 7 actuates a mercury switch 28 through a connection 10, 11, 12 with a bar 5 pivoted at 6 to which the switch is attached. Springs 15, 22, both being adjustable in strength, control the settings of the switch operation. Adjustment can further be effected by sliding a counterweight 19 in or out of the bar 5. As described, the switch is used in conjunction with plant using gas at super-normal pressures, and can operate indicating lights 30, 31 or control circuits for starting or stopping " boosters."
Patent GB-146080-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B25/00
Filed: 1920-03-09
Abstract: 146,080. Beconnier, P. June 21, 1919. [Convention date]. Valves.-In an engine having a cylinder and piston each of two diameters, the combustion products are withdrawn from the working space into an annular pump chamber which communicates with the atmosphere and with the working space by a passage 5 and a rotary cylindrical valve x. The valve also places the working cylinder in open communication with the atmosphere through the port 3 before the products of combustion are withdrawn by the pump. According to the Specification as open to inspection under Sect. 91 (3) (a) the rotary valve may be replaced by a flat slidevalve,.. This subject-matter does not appear in the Specification as accepted.
Patent GB-889093-A (GB)
Title: Improvements in or relating to houses or hutches for rearing and breeding small animals, such as rabbits
IPC: A01K1/03
Filed: 1960-03-01
Abstract: 889,093. Animal cages. MOSS, A. E. Nov. 24, 1960 [March 1, 1960], No. 7185/60. Class 5(2). A housing unit for small animals such as rabbits comprises rows of pens arranged in pairs one pen of each pair being fixed below and in front of the other so that excreta may fall through the wire netting floors 7 of both pens directly on to the ground below. Breeding boxes 12 and hay racks 14 are provided in each pen and food hoppers may be attached to the wire netting fronts of each pen.
Patent GB-397046-A (GB)
Title: Improvements in or relating to the treatment of artificial fibres, more particularlyof artificial silk
IPC: D02G1/02
Filed: 1933-03-09
Abstract: Artificial fibres to be given a permanent wool-like curliness are twisted to at least four times the normal amount, and preferably as much as possible, wound in this state, moistened at a relatively high temperature, dried, and twisted in the opposite direction.  The twisting in the opposite direction may be carried to beyond the zero point.  Moistening is effected by steaming under pressure or by immersing the bobbins in boiling or nearly boiling water, with or without wetting agents.  The fibres may be cut up into staple lengths.  Examples are given of the production of curled fibres from cuprammonium, viscose, and acetate artificial silk yarns.
Patent GB-197123-A (GB)
Title: Combined table and bed
IPC: A47C17/62
Filed: 1922-03-13
Abstract: 197,123. Holt, R. March 13, 1922. Mattresses.-The tension of the wire mattress i of a bedstead convertible into a table is adjustable by means of a ratchet o turned by a removable handle and held by a pawl.
Patent GB-1273682-A (GB)
Title: Scanning devices
IPC: G02F1/29
Filed: 1970-02-16
Abstract: 1,273,682. Light deflectors. INTERNATIONAL BUSINESS MACHINES CORP. 16 Feb., 1970 [3 March, 1969], No. 7294/70. Heading H4F. The application of a laser beam to a liquid or solid produces an ultrasonic wave therein which serves effectively to reflect part of the original laser beam by diffraction while the rest of the beam is transmitted, the reflected beam having a frequency less than that of the original beam. If the acoustic wave is formed in a body of piezo-electric semi-conductor material, e.g. CdS, ZnS, ZnO, to which an electric field is applied, it will propagate in a direction where the field strength is E M , where it has maximum gain, Fig. 5. Thus by varying either the magnitude, Fig. 3 (not shown), or direction, Fig. 2, of the electric field, the direction of the acoustic wave and therefore of the diffracted laser beam is charged.
Patent GB-268754-A (GB)
Title: Improvements in metallic compounds of o-hydroxyazo dyestuffs
IPC: C09B45/48
Filed: 1927-03-17
Abstract: 268,754. I. G. Farbenindustrie Akt.- Ges. March 31, 1926, [Convention date]. Azo dyes, soluble metal compounds of.-Complex metal compounds of o-oxyazo dyes containing nitro or amino groups are treated with reducing agents, whereby nitro groups may be reduced to amino or azoxy groups, or with acylating agents, to produce acylamino derivatives. It is found that acetylation, benzoylation or other acylation usually lightens the shade. In examples (1) the chromium compound of the dye obtained by coupling diazotized p-chlor-o-aminophenol with H-acid in alkaline solution is acetylated by treatment with acetic anhydride; the product dyes wool in a more reddish shade than that obtained from the untreated dve. (2) The chromium compound of the dye obtained from diazotized pnitro-o-aminophenol-o-sulphonic acid and #-naphthol is reduced with sodium sulphide; the product dyes wool in even bluish-grey shades, whereas the original dye gives violet-brown shades. Other dyes containing nitro groups may be similarly reduced, the products giving not only a change of shade, but in almost all cases more even dyeings than those obtained from the original dyes. If a number of nitro groups are present, e.g. in dyes derived from picramic acid, one or more of them may be reduced by varying the amount of reducing agent. (3) The chromium compound of the nitrated dye from 1 : 2 : 4-aminonaphthol sulphonic acid and #-naphthol is treated with glucose in the presence of caustic soda solution, the product dyes wool in fast, dark blue shades. (4) The copper compound of the dye obtained by alkaline coupling of diazotized picramic acid with H-acid is acetylated by treatment with acetic anhydride, the product gives more reddish shades than the original dye. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the treatment of complex metal compounds of o-oxyazo dyes in general (except those of the dye obtained by coupling diazotized 1 : 2 : 4-aminonaphtholsulphonic acid) with any chemical agents capable of reacting with them without destroying the metal complex. Thus dyes containing amino groups may be treated with alkylating or arylating agents, or several molecules of such dyes may be linked together by treatment with phosgene, giving products with increased affinity for cotton. In further examples (1) the chromium compound of the dye from diazotized 4-nitro-2-aminophenol and 2:8: 6-aminonaphtholsulphonic acid is boiled with dinitrochlorbenzene in presence of sodium carbonate; the product dyes wool in fast brown shades, and (2) the chromium compound of the dye from diazotized 4-nitro-2-aminophenol and H- acid (alkaline coupling) is diazotized and the diazo solution boiled to replace the amino group by a hydroxy group: the product gives redder shades than the original dye. This subjectmatter does not appear in the Specification as accepted.
Patent GB-661294-A (GB)
Title: Improvements in and relating to jewelled footstep bearings
Inventor: BRADBURY FRANK
IPC: F16C17/08
Filed: 1949-03-18
Abstract: 661,294. Bearings. ENGLISH ELECTRIC CO., Ltd. March 20, 1950 [March 18, 1949], No. 7444/49. Class 12 (i). A jewel mount for a footstep bearing comprises an elongated stem 1, one end of which is formed with a recess, and a jewel 3 fitting the recess and extending beyond the outer edge thereof, a slot 2 being formed in the end of the stem 1 so as to provide resilient engagement between the edges of the recess and jewel 3. A retaining cap 5 fits tightly over the end of the stem 1 and has a flange 6 which bears against the jewel 3 and presses it into engagement with a resilient pad 4. The pad 4 is of light-coloured material to facilitate microscopic examination of the jewel surface. Specification 524,633 is referred to.
Patent GB-538248-A (GB)
Title: Window regulators
IPC: E05F11/38
Filed: 1940-04-25
Abstract: 538,248. Window opening and closing apparatus. PARSONS, J. B. 'April 25, 1940, No. 7473. Convention date, April 25, 1939, [Class 20 (iii)] [Also in Group XXVII] A motor car window 20, Fig.1, is actuated by a piston 28 in a cylinder 31 supplied with pressure fluid under the control of an electric solenoid operated valve, operated through a switch 174 on the dashboard. The pressure fluid is supplied by a pump 100 operated by the starter motor 102 the load imposed by the pump being temporarily reduced when the engine is started by returning the fluid to a reservoir 98 through a valve 110, Fig. 4, operated by a solenoid 138 connected to the starter circuit. The piston, 28 presses through a spring 87 against pivotally connected cross arms 23, 24 engaging at their opposite ends in slotted bars, 25, 26 on the window and door frame. When the valve 110 is in position for the actuation of the windows, fluid is drawn through the reservoir conduit 103 through a groove 125 and passage 122 around the gears 142, 144 and then through a passage 123, groove and ports 132 into the bore 127 from which it is discharged into the pipe 104 leading to the door-operating pistons. A byepass 152 governs the maximum pressure exerted by the pump. The solenoid 138 is energized when the, motor is used to.start the engine, the valve being moved to a position wherein the pressure fluid is circulated from the pipe 104 through the bore 127 back to the reservoir 98. To prevent clashing of the starter motor gears when the starter pedal 166 is depressed at the same time as. a window is actuated, the contact plate 193 carried by a lever 164 connected to the pedal lever is moved away from contact points 192, 194 thus breaking the circuit through the starting solenoid 162. Upon continued movement of the pedal, a plunger 161 moves a contact plate 168 to reestablish the circuit controlling the ,motor.
Patent GB-680662-A (GB)
Title: Process for the recovery of pure folic acid
IPC: C07D475/04
Filed: 1950-03-24
Abstract: Folic acid is recovered from the crude product obtained by synthesis according to known processes by precipitating folic acid from an aqueous alkaline solution of the crude product at a temperature not exceeding 50 DEG  C. and at a pH value of at most 1, with sulphuric or hydrochloric acid.  The precipitation may be carried out at room temperature.  Prior to the precipitation of the folic acid, barium chloride equivalent to the amount of caustic soda solution may be added to a solution of the crude product in caustic soda.  Three examples are given.
Patent GB-273780-A (GB)
Title: Improvements in or relating to screwed bushes
IPC: F16B37/12
Filed: 1926-03-18
Abstract: 273,780. Bethell, A. L., Bethell, W. E., Scott, A. C., and Scott, W. A. March 18, 1926. Wire-netting.-A socket for woodscrews, coachscrews, &c. comprises a coil of wire fitting the screw-threads and having means at one end for engaging firmly the tip of the screw so that the screw and socket can be inserted together. The socket remains in position when the screw is withdrawn. The coil is wound smaller at the end 11 to grip the tip of a woodscrew or has a short radial projection 16 engaging a hole in the end of a coachscrew 13, Fig. 5. The outer end of the coil may be formed as a hook or ring, or as a cleat 20 for securing wire netting to fences. A wooden plug may be driven in when the screw is withdrawn. A tool for inserting a hook &c. has a handle 19 and a shank 18 formed like a woodscrew.